Textiles: knitting – Independent-needle machines – Circular
Reexamination Certificate
2001-01-24
2001-06-26
Worrell, Danny (Department: 3765)
Textiles: knitting
Independent-needle machines
Circular
C066S057000
Reexamination Certificate
active
06250113
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a structure for adjusting gap between an anchor seat and a needle drum seat of a circular knitting machine and specifically an improved structure for an anchor seat coupled with a cam for preventing knitting needle located in the needle drum seat from hitting the cam or dropping thereby for the circular knitting machine to achieve smooth and precise knitting operation.
A conventional anchor seat A (shown in
FIG. 1
) for a circular knitting machine usually includes a base A
1
which has a slant positioning bore A
11
for housing a fastening bolt C to engage with a lower lozenge ring B. The anchor seat A does not have adjustment means to fine tune the gap formed between the needle drum seat A
2
. Hence the end surface A
2
of the anchor seat A has to be fabricated very precisely during machining to match the cam E. Too thick or too thin of the end surface will result in the knitting needles hitting the cam E or dropping of needles (located in the needle drum seat D) during knitting operation.
However conventional anchor seat cannot totally eliminate the problems resulting from not precision of machining. Unless it is made extremely precise, a slightly too thick will cause the gap between the needle drum seat and cam too small and result in the needles located in the needle drum seat hitting the cam; a slightly too thin will cause the gap between the needle drum seat and cam too large and result in the needles located in the needle drum seat dropping during knitting operation. All this will cause defect of the knitting fabric. Hence unless the anchor seat is precisely made, the subsequent operation will be adversely affected.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages, it is therefore an object of this invention to provide an improved structure that may make adjustment of the gap between an anchor seat and a needle drum seat more precise and easier thereby to enable the circular knitting machine to perform knitting operation smoothly and precisely.
In one aspect of this invention, the adjustment of the gap is done by tapping lightly the anchor seat, and fastening or unfastening two adjustment bolts in two bores. The gap between the anchor seat and needle drum seat may be adjusted precisely thereby to prevent the needles located in the needle drum seat from hitting the cam or dropping, and consequently make knitting operation running smoothly and precisely.
REFERENCES:
patent: 1679171 (1928-07-01), Pickell
patent: 1785603 (1930-12-01), Swinglehurst
patent: 3013418 (1961-12-01), Hill
patent: 3387469 (1968-06-01), Beckenstein
patent: 3670526 (1972-06-01), Martinetz
patent: 3882694 (1975-05-01), Stepanek et al.
patent: 3926013 (1975-12-01), Kurth et al.
patent: 4054042 (1977-10-01), Durville
patent: 5172569 (1992-12-01), Schnurrer
patent: 5682770 (1997-11-01), Wang
Bacon & Thomas PLLC
Pai Lung Machinery Mill Co. Ltd.
Worrell Danny
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