Classifications

• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
  • D04B15/88—Take-up or draw-off devices for knitting products
  • D04B15/90—Take-up or draw-off devices for knitting products for flat-bed knitting machines
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
  • D04B15/10—Needle beds

Definitions

• the invention relates to a flat knitting machine with a needle, needle beds and carriages movable over the needle beds.
• needle beds parallel to the direction of expulsion in order to create more space for the so-called belching of a piece of goods at the beginning of a knitting process or for picking up stitches between the needle beds.
• the front needle bed is moved parallel to the needle exit direction before the actual knitting process.
• the needle bed is brought back into the defined, predetermined position with a fixed, constant needle bed distance before the knitting process begins.
• This needle bed spacing is depending on the intended fineness for a specific machine and, according to earlier studies by Lamb, corresponds approximately to the needle pitch.
• loop stitchers are known, for example, from DE-PS 3 104 533.
• the stitch fillers are carried along with the knitting slide and have a spreader finger that is located between the needle beds.
• a spreader finger To create a pimpled structure, several catch handles are piled up on a needle.
• the spreading finger strokes over the tuck handles and prevents them from falling off.
• Such a spreader is particularly advantageous when different knitting techniques are used in a knitting course, in which different strengths are required.
• the spreader finger ensures that all stitches and handles in a row, regardless of the strength and stitch length, remain securely and reliably attached to the needles.
• the spreader finger In order for the spreader finger to perform its function of holding down stitches and handles, it must exert a certain pressure on the stitches.
• the spreader finger must therefore be rigid and must not yield too much. However, this means that a certain thickness of the streak finger, even when using very hard, stiff Materials must not be undercut, so that the "painting" is still possible.
• the invention has for its object to provide a flat knitting machine which does not have the limitations of conventional flat knitting machines, with which a greater variety of pattern variations can be knitted, and which, especially with finer than E8, the knitting of special structural patterns, in particular of Allows pimple patterns.
• At least one needle bed for changing the needle bed spacing w can be changed in its position parallel to the needle ejection direction.
• a direct, direct advantage of the feature according to the invention is, in particular, that coating devices for flat knitting machines with finenesses that are finer than E8 can now also be used. This has made it possible to knit special knitting patterns that require mesh, such as pimple and textured patterns, even with knitted fabrics with finer fineness than E8. Apart from this blatant advantage, however, there are further advantages such that a change in the needle bed spacing w, for example depending on various parameters, such as the stitch length, the yarn quality and thickness used, can achieve a flawless, more uniform knitted fabric.
• dowel pins and associated pin holes are provided on at least one needle bed or on the needle bed support for the defined change of the needle bed distance w.
• this embodiment it is possible to adapt the needle bed spacing w to specific requirements.
• the at least one needle bed with a displacement device parallel in its position to the Na delaustrieb direction is changeable.
• a displacement device A wide variety of devices are possible as a displacement device.
• eccentric arrangements, hydraulic devices or devices that are driven by means of a servo motor can be used for this.
• the shifting device of whatever type, is program-controlled.
• the needle bed spacing w can be changed in each case for rows of knitting with the stitch applicator switched on. This means that whenever the stitch applicator comes into operation, the needle bed spacing w is also changed. Even with finenesses finer than E8, the needle bed spacing w can be increased during the stitch-in process so that, in order to exert sufficient pressure, stitching fingers with a sufficiently large diameter can be passed between the needle beds without the risk of the needle beds or combs passing through the stitch applicator to damage.
• Figure 1 is a schematic cross section through the upper
• Figure 2 is a schematic cross-sectional view of the in Figure 1 illustrated V-bed machine with
• Figure 1 shows two V-shaped opposite needle beds 1, 1 ', which are attached to a needle bed support 2. There is a needle bed spacing w between the closest opposite edges of the needle beds 1, 1 ', namely between the tapping edges 3, 3' of the needle beds 1, 1 '.
• needles 4, 4' can be driven in and out by means of snap parts (not shown).
• tapping bars 5, 5' On the top of the needle beds 1, 1 'there are tapping bars 5, 5' on which the stitch formation takes place.
• FIG. 2 shows essentially the same representation as in FIG. 1, the needle beds 1, 1 'however changing their position on the needle bed support 2 in the direction of movement of the needles. are that the needle bed spacing w is now larger.
• the elements in FIG. 2 which correspond to those of FIG. 1 are given the same reference numerals in FIG. 2 as in FIG. 1.
• the needle bed spacing w normally depends on the fineness of the needle beds.
• the needle bed spacing w is smaller for finer details. Relationships between fineness and needle bed spacing have already been determined by Lamb and have not been questioned in the past by flatbed machine designers. For subtleties finer than ES, however, the needle bed spacing w was so small that there was no space between the needle beds for a spreading finger that was sufficiently thick even with the hardest, stiffest material so that it could perform the function of pressing down sufficiently well without bending. All the more to fine delicacies there was no space between the needle beds 1, 1 'for a spreading finger holder.
• the spreader finger 7, usually a wire, must be long enough to hold the stitches down at least over a needle bed width in which the stitch formation has not yet been completed.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Knitting Machines (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6371588

Family Applications (1)

Country Status (2)

Cited By (1)

Families Citing this family (4)

Citations (3)

Family Cites Families (4)

• 1989
  • 1989-01-04 DE DE19893900143 patent/DE3900143C1/de not_active Expired - Lifetime
• 1990
  • 1990-01-02 WO PCT/EP1990/000002 patent/WO1990007601A1/de unknown

Patent Citations (3)

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