Classifications

• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
  • D04B27/04—Sinkers
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
  • D04B27/02—Warp-thread guides

Definitions

• the invention relates to a comb-like structure with a multiplicity of tines, which project in the transverse direction from a longitudinal bar which is continuous over all tines, and to a method for producing such a comb-like structure.
• Such comb-like structures are required, for example, in textile machines, in particular in knitting and knitting machines, as wear parts, as so-called spring combs or comb strips.
• Such combs must have a highly precise shape, in particular the shape and spacing of the tines having to be observed very precisely.
• the longitudinal strips can be bent, in particular bent into a circle, even on their contact side.
• the tines can have a rectangular cross section, the side surfaces of which are flat and in particular lie in one plane.
• cross sections of the tines with uneven side surfaces, in particular round cross sections can also be processed with this method.
• the tines can be glued at a distance from one another or directly adjacent to one another and touching one another.
• the tines are manufactured individually, inexpensive manufacturing processes can be used for this, and in particular the tines can be checked for their dimensional stability and dimensional stability before being incorporated into the comb-like structure and rejects can be discarded.
• the same tines can be used to produce comb-like structures of different lengths and different shapes, for example straight or curved comb-like structures.
• the adhesive By gluing by means of an adhesive which does not crawl appreciably in capillary cavities either during use or later, the adhesive is prevented from advancing towards the ends which project freely from the longitudinal bar, which are the functional ends of the comb-like structure, and must not be glued.
• the adhesive is in particular a polymer in question, which in particular only over room temperature elevated temperature of 100 ° C to 2000 ° C and / or elevated pressure of at least 0.1 N / mm 2, in particular at least 1, 0 N / mm his 2 Adhesion unfolds.
• the tines can be positioned in the correct manner relative to one another without being adversely affected by the adhesive applied, which is usually by means of an auxiliary device which has the corresponding positioning body and a form-fitting positioning the tine causes to be arranged.
• the longitudinal bar equipped with the adhesive on the contact surface is then pressed onto the tines in the correct place, preferably again by means of a form-fitting positioning body, in particular in such a way that the longitudinal bar has a longitudinal edge aligned with the rear ends of the tines.
• the adhesive is applied in particular over a large area and over the entire area of the contact area of the longitudinal bar.
• a particularly stable variant of such a comb can be achieved if a longitudinal strip is applied in an analogous manner by means of gluing on both sides of the row of tines, preferably one after the other, in order to fix the gluing achieved with the first longitudinal strip to maintain with the second, opposite longitudinal bar, without again needing an auxiliary device with positioning bodies between the individual tines.
• Fig. 1 the pre-positioned row of tines before placing the first
• Fig. 2 the row of tines already connected to a longitudinal bar before
• Fig. 5 a cross section through the comb of Fig. 3 along the line V-V.
• FIG. 1 shows a plurality of defined tines 2 arranged next to one another, which preferably all have the same shape, and are positioned on a work surface 12 in the correct manner by means of an auxiliary device.
• the auxiliary device comprises a positioning body 6a, which serves as a stop for the rear ends of the tines 2, and positioning bodies 6b, which are arranged at such a distance from one another that a tine 2a, 2b, ... is inserted exactly between two positioning bodies 6b can be. Possibly.
• Another positioning body can limit the lifting of the tines 2a, 2b, ... from the longitudinal positioning body 2a, in that such a further positioning body runs parallel to the positioning body 6a along the front ends of the tines 2a, 2b, 2c, ...
• the longitudinal bar 3a is covered on its contact side 7 pointing against the tines 2a, 2b, 2c with an adhesive tape 4a which has been freed from the protective film on the corresponding side prior to being attached to the long bar 3a, on which the tines 2a, 2b, 2c, facing side of the adhesive tape 4a, the protective sheet 8 is only removed immediately before bonding with the prongs 2a, 2b, 2c, in order to avoid dusting, soiling, etc. of the adhesive tape 4a
• the longitudinal bar 3a is printed on the tines 2 with a pressure of at least 0.2 N / mm 2 and at a temperature of at least 120 ° C. for at least a few seconds, better a few minutes, in particular 30 minutes, the specified temperature especially for the adhesive tape 4 must be present
• the tines 2a, 2b, 2c are already securely bonded in a position-secure manner with respect to the longitudinal bar 3a, so that this composite can now be removed from the auxiliary device, which comprises the position bodies 6a, 6b, and turned over so that the longitudinal bar 3a below and the tines 2a, 2b, 2c, are above, which in turn can be done in another auxiliary device, for example
• a second longitudinal bar 3b is applied to the other side surface 5 of the pre-positioned tines 2a, 2b, 2c, which in particular coincides with the first longitudinal bar 3a.
• the second longitudinal bar 3b is likewise pre-assigned with an adhesive tape 4b and is used for analogue pressure and temperature as the first longitudinal bar 3a - after removing the protective film - applied The pressing is maintained for at least 30 seconds
• the tines 2a, 2b, 2c can be tapering, needle-shaped structures as well as rectangular, slender strips, but also differently shaped, for example eye-shaped, parts
• the width of the bond in the transverse direction 11 must be chosen to be sufficiently large
• the tines can rest directly against one another within the rake-like structure, in particular in the area between the longitudinal bars 3a and 3b, but more often the tines will be arranged at a defined distance from one another
• the adhesive tape is, in particular, a tape which consists exclusively of the adhesive material and in particular has no stabilizing insert such as a load-bearing fabric, etc. LIST OF REFERENCE NUMBERS

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Adhesives Or Adhesive Processes (AREA)
• Preliminary Treatment Of Fibers (AREA)
• Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
• Mechanical Treatment Of Semiconductor (AREA)
• Nonmetallic Welding Materials (AREA)
• Outerwear In General, And Traditional Japanese Garments (AREA)
• Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
• Looms (AREA)
• Warping, Beaming, Or Leasing (AREA)
• Knitting Machines (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7856050

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (2)

Citations (5)

• 1998
  • 1998-01-29 DE DE19803474A patent/DE19803474C1/de not_active Expired - Fee Related
• 1999
  • 1999-01-28 ES ES99907442T patent/ES2195542T3/es not_active Expired - Lifetime
  • 1999-01-28 AT AT99907442T patent/ATE238439T1/de not_active IP Right Cessation
  • 1999-01-28 KR KR1020007008203A patent/KR20010024882A/ko not_active Application Discontinuation
  • 1999-01-28 JP JP2000529486A patent/JP2002501867A/ja active Pending
  • 1999-01-28 WO PCT/EP1999/000550 patent/WO1999039035A1/de not_active Application Discontinuation
  • 1999-01-28 EP EP99907442A patent/EP1053363B1/de not_active Expired - Lifetime
  • 1999-01-28 DE DE59905184T patent/DE59905184D1/de not_active Expired - Fee Related

Patent Citations (5)

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