Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
  • D03J1/00—Auxiliary apparatus combined with or associated with looms
  • D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds

Definitions

• the invention relates to a device for drawing warp threads into a reed according to the preamble of claim 1.
• DE-OS 32 32 631 has such a device for content.
• a pre-piercing plate engages in a first tube of the reed, after which the draw-in hook then engages in this tube, to which a warp thread is transferred, which is drawn through the first tube when the draw-in hook moves backward.
• the frame of the device supports a shaft which is axially displaceable relative to the frame and which carries a fixing plate and a stop, a helical spring being arranged between the stop and the frame.
• the piercing plate disengages from the first tube after the retractor has completed its backward movement, whereby the frame with the piercing plate and the retractor hook along the reed by the spring is shifted by a division of the reed which corresponds to the shifting movement which the stop previously carried out with its shaft and the fixing plate and at which the spring was tensioned.
• the piercing plate then carries out a pivoting movement and comes into engagement with a third tube of the reed which is adjacent to the first tube, in which the piercing plate has previously engaged.
• the pull-in hook then executes its movement and the fixing plate disengages from the second tube, after which the above-described operations are repeated, in which the fixing plate then engages in a fourth tube which is adjacent to the second tube.
• warp threads which have about 30 tubes, i.e. Have leaf gaps per cm. Up to 60 tubes per warp can be fitted with warp threads.
• the known device also has the disadvantage that at the end of each displacement movement, both the fixing plate relative to the frame when the pricking plate is in engagement with the reed, and the displacement movement of the frame relative to the fixing plate when it engages a pipe that is mutual
• the distance between the boards is not an integer multiple of the routing. With simultaneous engagement of the sinkers in the reed, the sinkers are not exactly in the middle of the tubes. Since this is the case, there is also the danger here, particularly in the case of reed leaves with a fine division, that one of the sinkers runs against a leaf or catches a wrong leaf.
• the known device has no possibility of adjusting the mutual spacing of the boards.
• the movement of the fixing plate relative to the frame is brought about by a cam disc running against the stop.
• the stroke that this cam disc causes when it stops and thus with the displaceable shaft carrying the fixing plate is always the same. If the device is to be used on reeds with different divisions, then it is necessary to use a cam disc adapted to the division. In the case of reeds with fine pitch, however, the cam stroke should correspond exactly to a tube pitch.
• the object is to improve the device of the type mentioned at the outset in such a way that even finest pitch reeds can be fitted with warp threads.
• FIG. 1 shows a perspective view of the essential components of the device
• FIG. 2 shows a frontal view of a knife-promoting circuit board
• Fig. 3 is a side view of this board
• FIG. 4 shows a perspective view of an alternative embodiment of a holder for a circuit board.
• the pull-in hook and its actuating mechanism are not shown. These parts and their function correspond to those of DE-OS 32 32 631. The same applies to the movement sequences for the plates, the pull-in hook, the frame and the spring.
• the frame 3 of the device carries two Schenen 1.1 and 1.2, which are perpendicular to the plane of the not shown
• Webblades run. On these rails 1.1 and 1.2, a holder 4 is guided, which projects the piercing plate 22 t. Para l le l to these parallel rails
• Fixing plate 11 carries. These two other rails
• 2.1 and 2.2 are attached to a block 7, to which the axially displaceable shaft 6 is further attached, which is perpendicular to the rails 2.1 and 2.2.
• the block 7 is guided by a rail 8 which runs parallel to the shaft 6 and which is connected to the frame 3.
• a hollow shaft 10 is arranged, which together with the shaft 6 axially in pipe direction
• a stop 9 is rigidly arranged on the hollow shaft 10.
• a helical spring 12 is arranged between this stop 9 and the wall 3.1 of the frame.
• the hollow shaft 10 is slotted at one end and surrounded by a clamping device 15. When the clamping device is closed, the hollow shaft 10 is locked on the shaft 6. If the clamping device is open, then the shaft 6 can execute an axial movement relative to the hollow shaft 10.
• An arm 16 of a two-armed lever 17 bears against the stop 9 on the side opposite the spring 12 and extends essentially at right angles to the shaft 6.
• the other arm 18 of the lever 17 is in direct connection with a rotatable cam disk 19 mounted in the frame 3.
• This cam disk 19 is rotatable, but not axially displaceable. It has a cam 20 projecting axially.
• the pivot axis 21 of the lever 17 is arranged on a block 23. Screwed into this block 23 is a screw spindle 24 which is axially immovably supported by the frame 3. This screw spindle 24 runs parallel to the shaft 6 and thus approximately at right angles to the lever 17.
• the pivot axis 21 can therefore be displaced parallel to the shaft 6.
• the holder 4 is engaged via a mouth slot 25.1 with an angle lever 26.1 mounted on the frame 3.
• the other end of this angle lever 26.1 is in contact with a cam 27 rotatably mounted on the frame 3.
• the holder 5 is also via a mouth slot 25.2 in engagement with an angle lever 26.2, which corresponds to the angle lever 26.1 and the other end of which is also in contact with a cam, corresponding to the cam 27, but with a different cam shape and cam position.
• the device works as follows:
• the cam 27 pivots the Wi nke Ihebe l 26.1 clockwise, whereby the holder 4 is moved with the piercing plate 22 in the direction of arrow 28.1 along the rails 1.1 and 1.2.
• the piercing plate 22 comes into engagement with a first tube of the reed.
• the fixing plate 11 is moved out of engagement with the reed.
• the cam 20 of the rotating cam disk 19 comes into engagement with the arm 18 of the lever 17, whereby the arm 16 moves the stop 9 against the force of the spring 12 to the right.
• This movement to the right in the direction of the arrow 13 is carried out by the hollow shaft 10, the shaft 6, the clamping device 15, the block 7 with the rails 2.1 and 2.2 as well as the holder 5 and the fixing plate 11.
• the spring 12 is tensioned here.
• the pulling hook (not shown) also moves into this tube.
• the displacement movement of the fixing plate 11 caused by the cam 20 corresponds to a pipe division.
• the cam actuating the angle lever 26.2 pivots this angle lever clockwise, whereby the fixing plate 11 executes a linear movement along the rails 2.1 and 2.2 in the arrow direction 29.1 and thereby in sticks a second tube of the reed.
• the piercing plate 22 is still in engagement with the aforementioned first tube.
• the draw-in hook with the warp thread taken over has carried out its movement in a known manner from the first tube, into which the piercing plate 22 had previously been inserted.
• the angle lever 26.1 is now pivoted counterclockwise by the cam 27, so that the holder 4 executes a movement back into the direction of the arrow 28.2.
• the piercing plate 22 thus disengages from the reed.
• the spring 12 presses the frame 3 over the frame wall 3.1 to the right by an amount that corresponds to a pipe pitch, ie the amount by which the stop 9 was previously shifted to the right relative to the frame 3.
• This displacement movement of the frame 3 by a tube division also carries out the piercing plate 22 and the pull-in hook.
• the angle lever 26.2 is pivoted in the counterclockwise direction, so that the holder 5 with the fixing plate 11 performs a movement along the rails 2.1 and 2.2 in the direction of the arrow 29.2.
• the fixing plate 11 thus comes out of engagement with the second tube into which it has previously been inserted.
• the work sequences described above are then repeated.
• the shaft 6 is again moved axially to the right by the cam 20 of the rotating cam disk 19 in the direction of arrow 13, in this case the spring 12 is tensioned and the fixing plate 11 is displaced to the right by one tube pitch.
• the pull-in hook moves into and out of the third tube, which is extended from the piercing plate 22, the fixing plate 11 moves in the direction of the arrow 29.1 and sticks into a fourth tube which is adjacent to the second tube into which it previously engaged has, and the Vorstechplati ⁇ e 22 come out of engagement with the third tube and the frame 3 including the piercing plate 22 and pulling hooks are moved around a tube part by the pressure of the spring 12 in the direction of the pierced fixing plate.
• the cam disk 19, the cam 27 and the cam actuating the angle lever 26.2 rotate synchronously with one another.
• Fi ier and Vorstechplatine 11, 22 are simultaneously in engagement with one tube of the reed, then their mutual distance should be such that both boards are exactly in the middle of the tube into which they are inserted. The mutual distance should therefore correspond exactly to an integer multiple of the pipe division.
• the clamping device 15 is used. If both sinkers 11, 22 are in engagement with a tube and the clamping device 15 is released, then the fixing plate 11 can adjust relative to the piercing plate 22, since the shaft 6 is relative to the Hollow shaft 10 and thus movable relative to lever 17. If this setting has been made at the beginning of the drawing in of the warp threads into the reed, then the clamping device 15 is closed, whereby the shaft 6 is rigidly connected to the hollow shaft 10.
• the axial stroke, which the shafts 6, 10 and thus the fixing plate 11 carry out, is infinitely adjustable by means of the screw spindle 24. If the block 23 'is adjusted to the right by the screw 24, then the full stroke of the cam 20 of the cam disk 19 acts on the lever arm 18, so that the shafts 6, 10 and thus the fixing plate 11 have the largest relative to the frame 3. Execute possible displacement, according to a rough division of the reed. If the block 23 is shifted to the left, the portion of the cam 20 acts increasingly on the lever arm 18, so that the shifting steps carried out by the fixing plate 11 become smaller. This corresponds to a fine division of the reed. The stroke zero is reached when the cam 20 no longer touches the lever arm 18.
• Vorstech- and Fi ierplatine show Fig. 2 and 3. It should be noted that the boards engage in the tubes of the reed immediately above the lower fret of the reed, so at a point where a possible parallelism of the leaves of the Webblades is not noticeable.
• the circuit board has a rectangular basic shape in its rear region 30 e. In the front area, it has a sharp edge 31 at the bottom. From the lower tip 32 is tapered upward, the slope 33 wedge-shaped, having a tapered tip 32 to the 'history, as shown in FIG. 2.
• the adjustment between the plates 11, 22 can also be carried out by means of the device according to FIG. 4.
• This device is provided either on the fixing plate 11 and / or on the pre-piercing plate 22. In the area shown, it is the fixing plate 11.
• the fixing plate 11 is attached to a clamping part l 34, which in turn is clamped in the holder 5.
• the holder 5 is divided into two parts, the two parts 5.1 and 5.2 being connectable to one another by means of screws which are inserted into the bores 35.1 and 35.2.
• the holder part 5.1 has an L-shaped recess in which the clamp part 34 is arranged.
• the clamping part l 34 and the holding part l 5.1 can be fixed at right angles to the shaft 6 by a keel-shaped engagement 36 which runs parallel to the shaft 6.
• both plates 11, 22 are in engagement with a tube of the reed and the screws screwed into the holes 35.1 and 35.2 are loosened so that the clamping piece 34 is released, then the fixing plate 11 with its clamping piece 34 can move relative to the holder 5 in the direction of the axis of the shaft 6, in the same way as when the clamping device 15 is released.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
• Looms (AREA)
• Treatment Of Fiber Materials (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6313459

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (2)

Citations (4)

• 1986
  • 1986-11-07 DE DE19863638090 patent/DE3638090C1/de not_active Expired
• 1987
  • 1987-11-06 CH CH295188A patent/CH671045A5/de not_active IP Right Cessation
  • 1987-11-06 WO PCT/EP1987/000680 patent/WO1988003577A1/de unknown
  • 1987-11-06 JP JP62506978A patent/JP2558305B2/ja not_active Expired - Lifetime

Patent Citations (4)

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