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CN-118621486-B - Double-sided circular knitting machine

CN118621486BCN 118621486 BCN118621486 BCN 118621486BCN-118621486-B

Abstract

The invention discloses a double-sided circular knitting machine, which comprises a knitting mouth, at least one yarn feeding port for feeding two yarns towards the knitting mouth, a plurality of upper knitting needles, a plurality of lower knitting needles and a needle selector. The two yarns are staggered at a narrowing point positioned in the knitting mouth, each lower knitting needle is controlled by the needle selector to have two narrowing states, each lower knitting needle is provided with a yarn hooking point at each narrowing state, the positions of the two yarn hooking points at the knitting mouth are different, the distances between the two yarn hooking points and the narrowing point are different, each lower knitting needle hooks the two yarns at one of the two yarn hooking points, and the current relative position of the two yarns determines that the looping is one of positive wrapping and negative wrapping.

Inventors

  • LI ZHIQIANG

Assignees

  • 佰龙机械厂股份有限公司

Dates

Publication Date
20260508
Application Date
20230308

Claims (6)

  1. 1. The double-sided circular knitting machine comprises a knitting mouth, at least one yarn feeding port for feeding two yarns towards the knitting mouth, at least one upper knitting needle cam, a plurality of upper knitting needles guided by the at least one upper knitting needle cam, at least one lower knitting needle cam and a plurality of lower knitting needles guided by the at least one lower knitting needle cam, wherein the two yarns are staggered at a narrowing point positioned in the knitting mouth, and the double-sided circular knitting machine is characterized in that: The double-sided circular knitting machine is provided with a needle selector, each lower knitting needle is controlled by the needle selector to have two needle retraction states, each lower knitting needle is provided with a yarn hooking point in each needle retraction state, the positions of the two yarn hooking points at the knitting mouth are different, the distances between the two yarn hooking points and the needle retraction points are different, each lower knitting needle hooks two yarns at one of the two yarn hooking points, and the relative position between the two yarns at the present time determines that the looping is one of positive wrapping and negative wrapping.
  2. 2. The double-sided circular knitting machine according to claim 1, characterized in that it has at least two yarn feeding openings, each feeding two of said yarns to said knitting mouth, the color of the plurality of yarns fed to said knitting mouth by at least two of said yarn feeding openings being different from each other.
  3. 3. The double-sided circular knitting machine according to claim 1 or 2, characterized in that each of said lower needles has a first half-needle position, each of said upper needles has a second half-needle position, each of said lower needles has in each of said contracted states a first contracted starting point starting from said first half-needle position, each of said upper needles has a second contracted starting point starting from said second half-needle position, said second contracted starting point being intermediate between the positions of said knitting mouth of two of said first contracted starting points.
  4. 4. A double-sided circular knitting machine according to claim 3, characterized in that each yarn has a yarn feeding path, the two yarn feeding paths being different, the extension lines of the two yarn feeding paths being staggered in the take-up point.
  5. 5. The double-sided circular knitting machine of claim 4 wherein each of said lower needles has a first clearing point in each of said retracted states and each of said upper needles has a second clearing point when active, said upper needles entering said second clearing point at a time point that is earlier than a time point at which said lower needles enter said first clearing point.
  6. 6. The double-sided circular knitting machine according to claim 1 or 2, characterized in that each of said lower needles has a first loop clearing point in each of said contracted state, each of said upper needles has a second loop clearing point when active, the point of time of entry of said upper needle into said second loop clearing point being earlier than the point of time of entry of said lower needle into said first loop clearing point.

Description

Double-sided circular knitting machine Technical Field The invention relates to a double-sided circular knitting machine, in particular to a circular knitting machine capable of implementing yarn-dyed jacquard when knitting double-sided fabrics. Background Current circular knitting machine designs result in double-sided knits that are generally colored after knitting when multi-colored. If the jacquard weave is used, the cloth weight and the cloth thickness of the double-sided knitted fabric are obviously not in line with the requirements of commercial cloth. More specifically, when the circular knitting machine performs jacquard knitting with a yarn feeding port for feeding one yarn, the jacquard knitting machine is required to perform jacquard knitting with four colors, and a single knitting process needs to pass through four yarn feeding ports, which causes the double knit fabric to have the problems described above. Disclosure of Invention The invention mainly aims to solve the problem that the double-sided knitted fabric with the yarn-dyed jacquard caused by the existing circular knitting machine structure has the cloth thickness and the cloth weight which are difficult to meet the market demand. The present invention provides a double-sided circular knitting machine comprising a knitting nozzle, at least one yarn feeding port for feeding two yarns toward the knitting nozzle, at least one upper knitting needle cam, a plurality of upper knitting needles guided by the at least one upper knitting needle cam, at least one lower knitting needle cam, a plurality of lower knitting needles guided by the at least one lower knitting needle cam, and a needle selector. The two yarns are staggered at a narrowing point positioned in the knitting mouth, each lower knitting needle is controlled by the needle selector to have two narrowing states, each lower knitting needle is provided with a yarn hooking point at each narrowing state, the positions of the two yarn hooking points at the knitting mouth are different, the distances between the two yarn hooking points and the narrowing points are different, each lower knitting needle hooks the two yarns at one of the two yarn hooking points, and the current relative position of the two yarns determines that the looping is one of positive wrapping and negative wrapping. In one embodiment, the double-sided circular knitting machine has two yarn feeding ports, each yarn feeding port feeds the two yarns to the knitting nozzle, and the two yarn feeding ports feed the yarns of the knitting nozzle in different colors. In one embodiment, each lower needle has a first half needle position, each upper needle has a second half needle position, each lower needle has a first needle retraction starting point starting from the first half needle position in each needle retraction state, each upper needle has a second needle retraction starting point starting from the second half needle position, and the second needle retraction starting point is between the two first needle retraction starting points and the position of the knitting mouth. In one embodiment, each yarn has a yarn feeding path, the two yarn feeding paths are different, and the extension lines of the two yarn feeding paths are staggered at the narrowing point. In one embodiment, each lower knitting needle has a first loop clearing point in each narrowing state, and each upper knitting needle has a second loop clearing point when in motion, and the time point when the upper knitting needle enters the second loop clearing point is earlier than the time point when the lower knitting needle enters the first loop clearing point. Compared with the existing double-sided circular knitting machine, the embodiment of the invention has the following characteristics that each lower knitting needle is controlled by the needle selector to have two needle-retracting states, and the position of the yarn hooking point of each lower knitting needle in the two needle-retracting states is different to determine to form a loop by positive wrapping or reverse wrapping, so that the yarn-dyed jacquard is realized in the process of knitting the double-sided knitted fabric. The invention makes the double-sided knitted fabric with multicolor jacquard have the cloth weight and the cloth thickness obviously lighter and thinner than those of the existing circular knitting machine, and can be more close to the design requirement on commercial clothing. Drawings Fig. 1 is a schematic view (one) of a partial structure of a double-sided circular knitting machine according to the present invention. Fig. 2 is a schematic view of a partial structure of the double-sided circular knitting machine of the present invention (ii). Fig. 3 is a schematic view of the double-sided circular knitting machine according to the invention in one of the retracted states. Fig. 4 is a schematic view of an embodiment of the double-sided circular knitting machine according to the