WO2020056899A1 - Appareil de commande de tension de fil de trame pour métier à tisser à lances - Google Patents

Appareil de commande de tension de fil de trame pour métier à tisser à lances Download PDF

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Publication number
WO2020056899A1
WO2020056899A1 PCT/CN2018/115814 CN2018115814W WO2020056899A1 WO 2020056899 A1 WO2020056899 A1 WO 2020056899A1 CN 2018115814 W CN2018115814 W CN 2018115814W WO 2020056899 A1 WO2020056899 A1 WO 2020056899A1
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WIPO (PCT)
Prior art keywords
plate
weft
seat
hole
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/115814
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English (en)
Chinese (zh)
Inventor
罗军
金永良
崔长安
陆超
王磊
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Pacific Textile Machinery (changshu) Co Ltd
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Pacific Textile Machinery (changshu) Co Ltd
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Application filed by Pacific Textile Machinery (changshu) Co Ltd filed Critical Pacific Textile Machinery (changshu) Co Ltd
Publication of WO2020056899A1 publication Critical patent/WO2020056899A1/fr
Anticipated expiration legal-status Critical
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/18—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick two weft inserters meeting at or near the middle of the shed and transferring the weft from one to the other

Definitions

  • the invention belongs to the technical field of auxiliary facilities of shuttleless loom, and particularly relates to a weft tension control device for a rapier loom.
  • the path of the weft is: the yarn is unwound from the bobbin, reaches the weft storage, and then enters the weft detector through the tensioner (that is, the tension control device), and then enters the loom, and the weft warp After the tensioner is applied a certain static initial tension, the static initial tension is constant and is very important for normal weft insertion.
  • the actual tension of the weft is the superposition of the dynamic tension and the static initial tension.
  • delicate wefts such as fine single yarn, fine denier filament, cashmere yarn, and silk, due to the weakness
  • the strength of the weft yarn is low, so excessive peak tension of the weft yarn will cause yarn breakage (ie, weft breakage), so the weft yarn tension needs to be reduced to ensure the normal weaving of the loom.
  • the current treatment method for the above-mentioned delicate weft yarns in weaving is to reduce the speed of the loom. Although this method can effectively reduce the probability of weft breakage, because reducing the speed of the weaving machine will affect the production capacity, it is a negative gain.
  • the tail section of the weft yarn remaining outside the cloth edge is longer, causing waste of weft raw material and unit mass of weft yarn
  • the disposal methods of the above heavy weft yarns in the weaving process mainly include the following three aspects: one is to make the weft sword release the weft yarns in advance, but the practice has proved that the advance amount is limited. For heavy weft yarns, the effect is better than nothing; the second is to reduce The speed of the loom, but as mentioned above will sacrifice the output per unit time; the third is to apply sufficient static initial tension to the weft through the tensioner to offset a part of the inertial force of the weft, and the greater the mass of the weft, the greater the static initial force applied. The tension is also greater, so excessive static weft tension is not conducive to normal weft insertion, and there is a risk of damaging the sword belt, such as accelerating the wear of the sword belt.
  • the technical information of the weft tension control device can be seen in the published Chinese patent documents, such as CN2628555Y (belt web weft tension control device), CN10163249A (loom yarn tension control device), CN105803646B (a kind of weft tension controller Loom shuttle) and CN207210647U (automatic weft tension control device), etc., because these patent solutions are not limited to the exemplified patent solutions and do not belong to the real sense of the weft tension control device of the shuttleless loom, so for shuttleless weaving
  • the rapier loom, shuttle shuttle loom, air jet loom, and water jet loom in the machine category have no technical significance.
  • the aforesaid document A) adjusts the tension of the weft yarn by changing the gap between the inertia wheel and the friction wheel to change the friction force experienced by the weft yarn passing between the inertia wheel and the friction wheel.
  • the above document B) adjusts the tension of the weft yarn passing between the fixed chuck and the movable chuck through the cooperation of the roller and the fixed chuck provided at the end of the movable chuck.
  • paragraph 0021 of the specification of the patent refer to paragraph 0021 of the specification of the patent.
  • the above documents A) and B) have the following disadvantages: first, because the motor is used as power, there are many action transmission links, not only large power loss, but also complicated structure; second, because both use screw drive, so one On the one hand, the response speed is slow, on the other hand, the precision of the tension is not conducive to the tension due to the pitch of the lead screw. Third, the tension on the weft is tangent to the weft by the wheel (document A is the friction wheel and document B is the roller) It is realized by the contact method, and thus appears as point contact. It is impossible to make the weft yarn pass through the weft yarn detector and enter the loom in a stable tension state by the line contact method.
  • the object of the present invention is to provide a motor that is used as a power to significantly reduce the action transmission link and reduce the power consumption and simplify the structure. It is helpful to improve the response speed when adjusting the weft tension and improve the precision control of the weft tension.
  • By adapting to the high-speed weaving requirements of the loom it is beneficial to change the way of contact with the weft yarn, so that the weft yarn enters the weaving machine while maintaining translational tension, and it is convenient to adjust the tension of the weft yarn according to different materials and different counts on demand
  • the weft tension control device for rapier loom is used to increase the adaptability to the weft.
  • a weft tension control device for a rapier loom includes a mounting base, which is mounted on the rapier loom in a use state, and is fixed at the right end of the mounting base. There is a pressed yarn spring plate fixing seat, and a weft yarn exporting porcelain circle hole is opened on the upper part of the pressing yarn spring plate fixing seat.
  • a weft yarn exporting porcelain circle is embedded in the weft yarn exporting porcelain circle hole; a weft yarn holding mechanism, the weft yarn
  • the holding mechanism is arranged vertically in the middle of the upwardly facing side of the mounting base and corresponds to the left side of the crimping spring piece fixing base; an electromagnet, the electromagnet and the left end of the mounting base facing downward One side of the electromagnet is fixed, and the armature of the electromagnet is located to the left of the electromagnet; a deflection plate reset mechanism is provided at the left end of the mounting base at a position corresponding to the above of the electromagnet;
  • the yarn pressing spring sheet and a deflection plate the left end of the yarn pressing spring sheet is connected to the top of the deflection plate, the middle part of the yarn pressing spring sheet corresponds to the top of the weft holding mechanism, and the right end of the yarn pressing spring sheet is connected with The top of the yarn pressure spring plate fixing seat is connected, and the deflection plate is connected with the
  • a weft yarn introduction porcelain ring hole is opened at the upper end of the deflection plate.
  • a weft-introducing porcelain ring hole is provided in the weft-introducing porcelain ring hole, and the lower end of the deflection plate extends toward the electromagnet and corresponds to the left side of the armature.
  • an electromagnet fixing plate base is fixed on the mounting base and located on the rear side of the mounting base by an electromagnet fixing plate base screw, and the electromagnet fixing plate base has a downwardly extending An electromagnet fixing plate corresponding to the right rear of the electromagnet and the electromagnet is fixed to the electromagnet fixing plate.
  • the weft holding mechanism includes a weft holding plate screw head fixing seat, a weft left holding plate and a weft right holding plate, and the weft holding plate screw head is fixed.
  • the seat is fixed to the middle of the upwardly facing side of the mounting seat through a screw head fixing seat screw of the weft yarn holding plate and corresponds to the left side of the pressing spring sheet fixing seat, and the side of the left yarn holding plate facing downward
  • the center position of the weft left holding plate screw head is formed with the left end of the weft holding plate screw head and the left end of the weft holding plate screw head fixing seat and is screwed on the end of the left end of the weft left holding plate screw head.
  • the locking nut I locks, and a weft yarn right holding plate screw head is formed at the center position of the side of the weft yarn right holding plate facing downward.
  • the weft yarn right holding plate screw head is connected to the right end of the weft yarn holding plate screw head fixing seat and It is locked by a screw head lock nut II screwed on the end of the screw head of the right weft holding plate, and the middle side of the presser spring plate faces downward at the same time as the left holding plate of the weft and the right holding plate of the weft. up Attached to a side surface of the contact.
  • a pair of right-pressing spring holes is provided on the top of the pressing-spring spring fixing seat, and a pair of left-pressing springs is provided on the top of the deflection plate.
  • a screw hole is connected, an elastic piece is provided on the left side of the compression spring sheet facing upward, and a pressing plate is provided on the right side of the compression spring sheet facing upward, and the left end corresponding to the elastic sheet is directed upward
  • One side is provided with an elastic sheet pressure plate, and a pair of elastic sheet pressure plate fixing screws are arranged on the elastic sheet pressure plate. The pair of elastic sheet pressure plate fixing screws are sequentially passed through the spring sheet and the yarn pressing spring sheet and screwed into the pair of pressure sheets.
  • the right end of the elastic piece is configured as a free end and is forced on the pressure spring piece.
  • a compression plate pad is provided between the right end of the compression plate and the right end of the yarn spring piece.
  • a pair of compression plate fixing screws are arranged above the right end of the compression plate, and the pair of compression plate fixing screws pass through the compression plate pad plate and the compression spring plate in turn and are screwed into the pair of compression spring plates.
  • the left end of the compression plate is configured as a free end and is forced on the compression spring sheet.
  • the surface of the weft yarn left holding plate facing upward and the surface of the weft right holding plate facing upward are both configured as arched surfaces.
  • a deflector shaft seat cavity is formed at the right end of the mounting seat, and the cavity opening of the deflection board shaft seat is facing left, on the front side of the left end of the mounting seat and at a corresponding position.
  • a torsion spring adjustment seat shaft head hole is provided at the position of the deflection plate shaft seat cavity.
  • the torsion spring adjustment seat shaft head hole communicates with the deflection plate shaft seat cavity, at the rear side of the left end of the mounting seat and at a position corresponding to the torsion spring adjustment seat shaft.
  • a central shaft support hole is provided at the center of the head hole, and the central shaft support hole is also communicated with the deflection plate shaft seat cavity.
  • the deflection plate reset mechanism is installed at a position corresponding to the head hole of the torsion spring adjustment seat.
  • the left end of the seat is supported on the center shaft support hole, and a deflection plate shaft seat is formed on the right side of the deflection plate and at a position corresponding to the deflection plate shaft seat cavity.
  • the deflection plate shaft seat is on the deflection plate shaft seat.
  • the cavity is connected to the deflection plate reset mechanism, the deflection plate is made of a magnetically conductive material, and a gap is formed between the deflection plate and the electromagnet.
  • the deflecting plate shaft seat has a deflecting plate shaft seat cavity, and the deflecting plate shaft seat cavity mouth of the deflecting plate shaft seat faces forward and is connected with the twist
  • a center shaft giving hole is provided at the center of the cavity bottom wall of the deflection plate shaft seat cavity, and a deflection plate shaft seat is also fixed at a position on the side of the off center hole giving hole.
  • a position of a shaft head locking screw seat is formed at a position of the shaft head.
  • the shaft head locking screw seat cavity of the shaft head locking screw seat is in communication with the torsion spring adjustment seat shaft head hole, and a shaft head is screwed in the shaft head locking screw seat cavity.
  • the deflection plate reset mechanism includes a torsion spring adjustment base, a deflection plate central shaft and a torsion spring, and a rear end of the torsion spring adjustment base forms a torsion spring adjustment base shaft head, and the torsion spring adjustment base shaft head It is matched with the hole of the head of the torsion spring adjusting seat and is composed of The shaft head locking screw is locked, and a deflection plate central shaft fixing hole is provided at the axial center position of the torsion spring adjusting seat. A hexagonal wrench adjustment hole is formed at a position corresponding to the front of the deflection plate central shaft fixing hole.
  • the seat also has a torsion spring foot positioning hole, the front end of the central axis of the deflection plate is fixed to the torsion spring adjustment seat at a position corresponding to the central hole of the deflection plate, and the rear end of the central axis of the deflection plate passes through the center.
  • a shaft yielding hole is supported on the central shaft support hole, a middle portion of the central axis of the deflection plate corresponds to the cavity of the deflection plate shaft and a sleeve is sleeved, and a torsion spring is sleeved on the sleeve.
  • the torsion spring The first torsion spring foot is inserted into the torsion spring foot positioning hole, and the second torsion spring foot of the torsion spring is inserted into the torsion spring foot of the bottom wall of the deflection plate shaft seat fixing cavity into the hole.
  • the gap is 0.3-0.6 mm.
  • the lower end of the yarn pressing spring piece fixing seat is fixed to the right end end face of the mounting seat by the yarn pressing spring piece fixing seat screw, and is corresponding to the yarn pressing spring piece.
  • a fixed frame is added to each of the front side and the rear side of the fixed base, and the fixed frames located on the front side and the rear side of the crimping spring sheet fixed base are connected to each other by positioning pins and positioning screws.
  • a mounting rod is fixed at the left end of the mounting base by a mounting rod fixing screw, and the mounting rod is located below the mounting base and is in contact with the rapier loom in a used state. fixed.
  • One of the technical effects of the technical solution provided by the present invention is that because an electromagnet is used, the deflection plate is attracted or released by the magnet, and the pressing plate spring plate is pressed or released from the bias plate plate, so there is less action transmission. Not only reduces the power loss, but also simplifies the structure. Second, because the electromagnet is used, it is helpful to improve the response speed when adjusting the weft tension. Third, because the position of the electromagnet can be adjusted to change the deflection plate and the electromagnetic The gap between the irons further changes the deflection angle of the deflection plate, so that the precision control of the weft tension can be realized to meet the high-speed weaving requirements of the loom.
  • the weft yarn located between the pressing spring sheet and the weft yarn holding mechanism can enter the loom while maintaining translational tension.
  • the gap between the deflection plate and the electromagnet can be changed as required, the The degree of deflection can be changed as required to meet the flexible adjustment requirements of the weft tension of different materials and different counts, and improve the adaptability to different weft yarns.
  • FIG. 1 is a structural diagram of an embodiment of the present invention.
  • FIG. 2 is a schematic front view of FIG. 1.
  • Fig. 3 is a sectional view taken along A-A in Fig. 2.
  • a mounting base 1 is shown.
  • the mounting base 1 is mounted on a rapier loom in a used state, and a crimping spring plate fixing base 11 is fixed at the right end of the mounting base 1.
  • a weft-exporting ceramic ring hole 111 is provided in the upper part of the pressing spring plate fixing seat 11, and a weft-exporting ceramic ring 1111 is embedded in the weft-exporting ceramic ring hole 111; a weft-supporting mechanism 2 is shown, and the weft-supporting The mechanism 2 is arranged vertically in the middle of the upward-facing side of the mounting base 1 and corresponds to the left side of the crimping spring plate fixing base 11; an electromagnet 3 is shown, and the electromagnet 3 and the mounting base 1 are shown The left end of the electromagnet 3 is fixed to the lower side, and the armature 31 of the electromagnet 3 is located to the left of the electromagnet 3.
  • the electromagnet 3 is electrically connected to the electrical controller of the rapier loom.
  • an adjustment groove 331 is provided on the electromagnet fixing ear 33 of the electromagnet 3, and the position of the electromagnet 3 can be adjusted as needed through the adjustment groove 331;
  • a deflection plate reset mechanism 4 is shown, and the deflection The plate reset mechanism 4 is on the top corresponding to the aforementioned electromagnet 3 Is located at the left end of the aforementioned mounting base 1;
  • a yarn pressing spring piece 5 and a deflection plate 6 are shown, the left end of the yarn pressing spring piece 5 is connected to the top of the deflection plate 6, and the middle portion of the yarn pressing spring piece 5 corresponds to
  • the right end of the yarn pressing spring piece 5 is connected to the top of the yarn pressing spring piece fixing seat 11 above the weft yarn holding mechanism 2, and the deflection plate 6 is in a position corresponding to the left end of the mounting seat 1 and the deflection plate reset mechanism.
  • a weft yarn introduction porcelain ring hole 61 is opened.
  • a weft yarn introduction porcelain ring 611 is provided in the weft yarn introduction porcelain ring hole 61.
  • the lower end of the deflection plate 6 extends in the direction of the aforementioned electromagnet 3. It also corresponds to the left side of the aforementioned armature 31.
  • An electromagnet fixing plate base 12 is fixed on the aforementioned mounting base 1 and located on the rear side of the mounting base 1 by means of an electromagnet fixing plate base screw 121.
  • the electromagnet fixing plate base 12 has an electromagnet fixing plate 122 extending downward.
  • the electromagnet fixing plate 122 corresponds to the right rear of the aforementioned electromagnet 3 and the electromagnet 3 is fixed to the electromagnet fixing plate 122 by an electromagnet fixing screw 32.
  • the electromagnet fixing screw 32 corresponds to the aforementioned adjustment groove 331. The position fixes the electromagnet fixing ear 331 and the electromagnet fixing plate 122.
  • the aforementioned weft holding mechanism 2 includes a weft holding plate screw head fixing seat 21, a weft left holding plate 22, a weft right holding plate 23, and a weft holding plate screw head fixing seat.
  • 21 is fixed to the middle of the upward facing side of the mounting base 1 by the weft holding plate screw head fixing seat screw 211 and corresponds to the left side of the aforementioned pressing spring plate fixing base 11 with the left weft holding plate 22 facing downward
  • a weft left holding plate screw head 221 is formed (that is, fixed).
  • the weft left holding plate screw head 221 is connected to the left end of the weft holding plate screw head fixing seat 21 and is spun on the weft.
  • the screw head lock nut I2211 of the end of the left holding plate screw head 221 is locked, and a weft right holding plate screw head 231 is formed (that is, fixed) at the center position of the weft right holding plate 23 facing downward.
  • the weft right holding plate screw head 231 is connected to the right end of the weft holding plate screw head fixing seat 21 and locked by a screw head lock nut II2311 screwed to the end of the weft right holding plate screw head 231.
  • the heights of the left weft holding plate 22 and the right weft holding plate 23 can be changed (lifted or lowered), thereby changing the pressing spring plate 5 Hold down the tightness of the weft yarn 7 to adjust the static initial tension of different weft yarns 7.
  • the magnitude of the initial static tension applied to the weft yarn 7 can also be obtained by changing the thickness of the yarn pressing spring sheet 5.
  • a pair of right-pressing spring leaf right connection screw holes 112 are opened on the top of the aforementioned pressure-spring spring piece fixing base 11, and a pair of left-attaching screw holes 62 of pressure spring leaf are opened on the top of the deflection plate 6.
  • An elastic piece 51 is provided on the left side of the compression spring sheet 5 facing upward, and a pressing plate 52 is provided on the right side of the compression spring sheet 5 facing upward, and the left end corresponding to the elastic sheet 51 faces upward
  • An elastic sheet pressure plate 511 is provided on one side of the elastic sheet.
  • a pair of elastic sheet pressure plate fixing screws 5111 are arranged on the elastic sheet pressure plate 511, and the pair of elastic sheet pressure plate fixing screws 5111 are passed through the spring sheet 51 and the pressing spring sheet 5 in order.
  • the right end of the elastic piece 51 is formed as a free end in the left pair of screw holes 62 of the aforementioned compression spring leaf and is forced on the compression spring leaf 5 between the right end of the compression plate 52 and the right end of the compression spring leaf 5.
  • a compression plate pad 521 is provided between the pair of compression plate fixing screws 522 at a position corresponding to the upper right end of the compression plate 52.
  • the pair of compression plate fixing screws 522 pass through the compression plate pad 521 and the compression spring plate in order. 5 screw in the aforementioned pair Yarn spring piece right connecting internal thread 112, the left end of the compression plate 52 is configured as a free end and held on the yarn pressing force spring plate 5.
  • the function of the elastic sheet 51 and the pressing plate 52 (also referred to as a “pressing plate”) is to ensure the compression effect of the compression spring sheet 5 on the weft 7.
  • the surface of the weft left holding plate 22 facing upward and the surface of the weft right holding plate 23 facing upward are configured as arched surfaces, that is, the left weft holding
  • the overall shape of the plate 22 and the weft right holding plate 23 is a bread shape in the food category. This shape can ensure that the weft yarn 7 obtains the required tension, and can reduce the resistance to the weft yarn 7 travel.
  • a substantially U-shaped deflection plate shaft seat cavity 13 is formed at the right end of the aforementioned mounting seat 1, and the cavity opening of the deflection plate shaft seat cavity 13 faces left, on the front side of the left end of the mounting seat 1 and at A position corresponding to the deflection plate shaft seat cavity 13 is provided with a torsion spring adjustment seat shaft head hole 14 which communicates with the deflection plate shaft seat cavity 13 on the rear side of the left end of the mounting seat 1 and correspondingly.
  • a center shaft support hole 15 is provided at the center of the torsion spring adjustment seat shaft head hole 14. The center shaft support hole 15 also communicates with the deflection plate shaft seat cavity 13.
  • the deflection plate reset mechanism 4 corresponds to the torsion spring adjustment.
  • the seat shaft head hole 14 is located at the left end of the mounting seat 1 and is supported on the aforementioned central shaft support hole 15.
  • a deflector shaft is formed on the right side of the deflector 6 and at a position corresponding to the deflector shaft housing 13.
  • a seat 63 which is connected to the aforementioned deflector resetting mechanism 4 in the deflector shaft seat cavity 13.
  • a deflecting plate reinforcing rib 64 is formed at the middle of the height direction of the deflecting plate 6 and located on the left side.
  • the deflection plate 6 is made of a magnetically permeable material and a gap S is formed between the deflection plate 6 and the electromagnet 3.
  • the gap S disappears, and when the armature 31 is released from the alignment
  • the deflection plate 6 is pulled in, that is, when the deflection plate 6 is released, the aforementioned gap S is restored.
  • the aforementioned deflecting plate shaft seat 63 has a deflecting plate shaft seat cavity 631, and the deflecting plate shaft seat cavity opening of the deflecting plate shaft seat cavity 631 faces forward and corresponds to the aforementioned torsion spring adjusting seat shaft head hole 14, during deflection
  • a central shaft clearance hole 6311 is provided at the center of the bottom wall of the plate shaft seat cavity 631, and a deflection plate shaft seat fixed cavity bottom wall torsion spring foot is also located at one side of the off-center shaft position hole 6311.
  • the central shaft yielding hole 6311 corresponds to the central shaft support hole 15, and a shaft head lock is formed on the left end face of the mounting seat 1 and at a position corresponding to the torsion spring adjustment seat shaft head hole 14.
  • Screw seat 16 The shaft head locking screw seat cavity 161 of the shaft head locking screw seat 16 communicates with the aforementioned torsion spring adjustment seat shaft head hole 14, and a shaft head locking screw is screwed in the shaft head locking screw seat cavity 161 1611.
  • the aforementioned deflection plate reset mechanism 4 includes a torsion spring adjusting seat 41, a deflection plate central shaft 42, and a torsion spring 43.
  • a torsion spring adjusting seat is formed at the rear end of the torsion spring adjusting seat 41.
  • Shaft head 411, the torsion spring adjustment seat Shaft head 411 is matched with the torsion spring adjustment seat shaft head hole 14 and locked by the aforementioned shaft head locking screw 1611, and a deflection is provided at the axial center position of the torsion spring adjustment seat 41
  • the central axis fixing hole 412 of the plate corresponds to a position in front of the central axis fixing hole 412 of the deflection plate.
  • a hexagonal wrench adjusting hole 413 (ie, a "hexagonal plate head adjusting hole") is formed.
  • a torsion spring is also provided on the torsion spring adjusting seat 41.
  • the foot positioning hole 414, the front end of the deflection plate center shaft 42 is fixed to the torsion spring adjusting seat 41 at a position corresponding to the deflection plate center shaft fixing hole 412, and the rear end of the deflection plate center shaft 42 is giving way through the aforementioned central axis
  • the hole 6311 is supported on the aforementioned central shaft support hole 15.
  • the middle of the deflection plate central shaft 42 corresponds to the aforementioned deflection plate shaft seating cavity 631 and is sleeved with a sleeve 421.
  • One end of the sleeve 421 faces the center shaft to give way to the hole 6311. Penetrate into the central axis yield hole 6311 and The mandrel yielding hole 6311 is fixed, the deflection plate central shaft 42 is substantially mated with the shaft sleeve 421, and the torsion spring 43 is sleeved on the shaft sleeve 421.
  • the first torsion spring leg 431 of the torsion spring 43 is inserted into the torsion spring foot positioning hole. 414, and the second torsion spring leg 432 of the torsion spring 43 is inserted into the torsion spring foot access hole 6312 of the bottom wall of the cavity of the deflection plate shaft seat.
  • the aforementioned gap S is preferably 0.3-0.6 mm, preferably 0.45-0.55 mm, and more preferably 0.5 mm. In this embodiment, 0.5 mm is selected.
  • the size of the gap S can be adjusted by changing the position of the electromagnet fixing screw 32 on the aforementioned adjustment groove 331. Specifically, the gap S can be changed by slightly moving the electromagnet 3 to the left or right.
  • the lower end of the crimping spring piece fixing base 11 is fixed to the right end face of the mounting base 1 by the crimping spring piece fixing base screw 113, and on the front side corresponding to the crimping spring piece fixing base 11 and A fixing bracket 114 is additionally provided at each of the rear positions, and the fixing brackets 14 located on the front side and the rear side of the crimping spring plate fixing seat 11 are connected to each other by positioning pins 1141 and positioning screws 1142.
  • a mounting rod 17 is fixed to the left end of the mounting base 1 by a mounting rod fixing screw 171.
  • the mounting rod 17 is located below the mounting base 1 and is fixed to the rapier loom in a use state.
  • the position of the present invention on the rapier loom is between the weft receiver and the weft yarn detector.
  • the weft yarn detector is usually provided with a sensor for detecting the weft yarn 7.
  • Weft tension sensor for tension.
  • the front of the weft receiver is a bobbin (simplified yarn, also known as a bobbin).
  • the weft 7 exits the weft detector and enters the loom. Specifically, the weft 7 passes from the bobbin to the weft storage.
  • the weft tension control device of the present invention applies a static initial tension to the weft yarn 7.
  • the weft tension control device of the present invention cancels the weft yarn 7
  • the applied static initial tension can reduce the actual tension of the weft yarn 7 to weave the weak weft yarn at a higher speed by the loom.
  • the invention applies static initial tension to the weft yarn 7 in this way, the electromagnet 3 is energized, the armature 31 attracts the deflection plate 6, and the deflection plate 6 rotates an angle about the central axis 42 of the deflection plate, that is, the lower end of the deflection plate 6. Displace to the right, and the upper end of the deflection plate 6 swings to the left, driving (that is, pulling) the yarn pressing spring sheet 5 to make the yarn pressing spring sheet 5 in a tight state. At this time, the yarn pressing spring sheet 5 presses down the weft 7 , A static initial tension is applied to the weft yarn 7. When the electromagnet 3 loses power, under the action of the torsion spring 43, the deflection plate 6 is reset, detached from the suction of the electromagnet 3, and the compression spring sheet 5 is loosened and no longer presses the weft yarn 7.
  • the sword head weft insertion process ends, the sword head sword belt It is still, and the weft yarn 7 will continue to move outside the cloth edge along the original movement direction or trajectory under the action of the flying inertia force. After the weft sword releases the weft yarn, the tail section of the weft yarn left outside the cloth edge is longer, which is easy to cause waste. . Therefore, the electromagnet 3 of the structure of the present invention can be controlled by the electrical controller of the rapier loom, and waste of the weft yarn 7 can be avoided.
  • the electromagnet 3 is energized and sucks the deflection plate 6 Therefore, according to the foregoing description, the clamping spring force 5 applies a clamping force to the weft yarn 7 to prevent the weft yarn 7 from moving outside the cloth edge.

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  • Looms (AREA)

Abstract

L'invention concerne un appareil de commande de tension de fil de trame pour un métier à tisser à lances. L'appareil de commande comprend une base d'installation (1), une assise de fixation de ressort de plaque de pression de fil (11) étant située à une extrémité droite de celle-ci ; une partie supérieure de l'assise de fixation de ressort de plaque de pression de fil (11) est pourvue d'un trou de cercle de porcelaine de guidage de sortie de fil de trame (111) ; un cercle de porcelaine de guidage de sortie de fil de trame (1111) est agencé dans le trou de cercle de porcelaine de guidage de sortie de fil de trame (111) ; un mécanisme de support de fil de trame (2) est agencé au niveau d'une partie centrale d'un côté, tourné vers le haut, de la base d'installation (1) ; un électroaimant (3) est fixée sur un côté, tourné vers le bas, d'une extrémité gauche de la base d'installation (1) ; et un mécanisme de rajustement de plaque de déflecteur (4) est disposé à l'extrémité gauche de la base d'installation (1). Une extrémité gauche d'un ressort de plaque de pression de fil (5) est reliée à une partie supérieure d'une plaque de déflecteur (6), une partie centrale de celle-ci correspond à un côté dirigé vers le haut du mécanisme de support de fil de trame (2), et une extrémité droite de celui-ci est reliée à une partie supérieure de l'assise de fixation de ressort de plaque de pression de fil (11). La plaque de déflecteur (6) est reliée au mécanisme de rajustement de plaque de déflecteur (4), une extrémité supérieure de la plaque de déflecteur (6) est pourvue d'un fil de trame se dirigeant dans le trou annulaire en porcelaine (61), un fil de trame se dirigeant dans l'anneau de porcelaine (611) est disposé dans le fil de trame se dirigeant dans le trou d'anneau de porcelaine (61), et une extrémité inférieure de la plaque de déflecteur (6) s'étend dans une direction faisant face à l'électroaimant (3). L'invention présente les avantages suivants : les liaisons de transfert de mouvement sont réduites, la structure est simplifiée, et la vitesse de réponse est améliorée lorsqu'une tension de fil de trame est ajustée, ce qui permet de satisfaire les exigences de tissage à grande vitesse d'un métier à tisser, et d'améliorer l'adaptabilité à différents fils de trame.
PCT/CN2018/115814 2018-09-20 2018-11-16 Appareil de commande de tension de fil de trame pour métier à tisser à lances Ceased WO2020056899A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811099597.4A CN108950823B (zh) 2018-09-20 2018-09-20 用于剑杆织机的纬纱张力控制装置
CN201811099597.4 2018-09-20

Publications (1)

Publication Number Publication Date
WO2020056899A1 true WO2020056899A1 (fr) 2020-03-26

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Application Number Title Priority Date Filing Date
PCT/CN2018/115814 Ceased WO2020056899A1 (fr) 2018-09-20 2018-11-16 Appareil de commande de tension de fil de trame pour métier à tisser à lances

Country Status (2)

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CN (1) CN108950823B (fr)
WO (1) WO2020056899A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929169A (en) * 1973-04-03 1975-12-30 Sulzer Ag Thread brake
JPH06212536A (ja) * 1993-01-20 1994-08-02 Toyota Autom Loom Works Ltd ジェットルームにおける緯糸制動装置
CN101008125A (zh) * 2006-01-24 2007-08-01 苏尔特克斯股份公司 受控纱线制动器
CN205205382U (zh) * 2015-11-20 2016-05-04 骆惠芳 止纱器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208844257U (zh) * 2018-09-20 2019-05-10 太平洋纺织机械（常熟）有限公司 用于剑杆织机的纬纱张力控制装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929169A (en) * 1973-04-03 1975-12-30 Sulzer Ag Thread brake
JPH06212536A (ja) * 1993-01-20 1994-08-02 Toyota Autom Loom Works Ltd ジェットルームにおける緯糸制動装置
CN101008125A (zh) * 2006-01-24 2007-08-01 苏尔特克斯股份公司 受控纱线制动器
CN205205382U (zh) * 2015-11-20 2016-05-04 骆惠芳 止纱器

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CN108950823B (zh) 2023-04-14
CN108950823A (zh) 2018-12-07

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