摘要:
A double-cylinder circular machine for producing tubular knitted manufactures, particularly for making hosiery items or the like, which comprises a supporting structure which is provided with a footing for resting on the ground which supports, so that it can rotate about its own vertically-oriented axis, a lower needle cylinder. The supporting structure comprises at least one column which is extended substantially vertically, protrudes upward from the footing and supports, so that it can rotate about its own axis, an upper needle cylinder, the upper needle cylinder is supported, so that it can rotate about its own axis, by an arm, which in turn is supported by the column, elements being provided for the rotation of the arm about the axis of the main shaft with respect to the column to provide the transition of the upper needle cylinder from an active position to an inactive position.
摘要:
What is described is a knitting machine with an electromagnetic selecting device for the three-way technique. In order to reduce the space requirement for the selecting device in height and width, assigned to each of the knitting tools (7) is a pivotable control jack (8) having two raising butts (17, 18) and to which, per selecting device, two control magnets (31, 32) arranged one after the other in the running direction of the knitting tools (7) are assigned. Depending upon which of the two control magnets (31, 32) is selected for a selecting procedure, the control jacks (8) find their way with one raising butt (17) onto a knitting cam (28) or with the other raising butt (18) onto a tuck cam (29).
摘要:
A double-cylinder circular machine for producing tubular knitted manufactures, particularly for making hosiery items or the like, which comprises a supporting structure which is provided with a footing for resting on the ground which supports, so that it can rotate about its own vertically-oriented axis, a lower needle cylinder. The supporting structure comprises at least one column which is extended substantially vertically, protrudes upward from the footing and supports, so that it can rotate about its own axis, an upper needle cylinder, the upper needle cylinder is supported, so that it can rotate about its own axis, by an arm, which in turn is supported by the column, elements being provided for the rotation of the arm about the axis of the main shaft with respect to the column to provide the transition of the upper needle cylinder from an active position to an inactive position.
摘要:
A knitting machine comprising a needle holder, which supports a plurality of needles which can be actuated with an alternating motion along their axis and means for guiding the needles on the needle holder which comprise channels for forming knitting which are defined proximate to the end of the needle holder and sliding channels which are defined on the needle holder in a region that is spaced from the end of the needle holder, each one of the channels for forming knitting being engageable by a needle and defining with its inlet, which is directed toward the outside of the needle holder, resting contact regions for the knitting during the retracting motion of the needles, the number of the sliding channels being smaller than the number of the channels for forming knitting.
摘要:
A circular knitting machine for knitted or hosiery items includes a supporting structure; a needle-holding cylinder rotatable around an axis of rotation and supporting a plurality of cylinder needles that are movable for producing a knitted fabric; a dial assembly, arranged above the cylinder and comprising a needle-holding plate rotating around the axis of rotation and supporting a plurality of plate needles that are movable for producing a knitted fabric. The machine includes motion generation elements, in order to rotate the needle-holding cylinder around the axis of rotation, and motion transmission elements configured for forming a motion transmission chain capable of transmitting to the plate, synchronously with respect to the cylinder, the rotation generated by the motion generation elements. The motion transmission elements include a first toothed wheel, receiving the rotary motion of the motion generation elements; a second toothed wheel, mounted coaxially with the needle-holding plate; an offset device, located between the first and the second toothed wheel and comprising an inlet gear, engaged with the first toothed wheel, and an outlet gear, engaged with the second toothed wheel. The inlet and outlet gears are mounted coaxially with one another and are translatable by an actuator, so as to change the engagement of the inlet gear with the first toothed wheel and/or the engagement of the outlet gear with the second toothed wheel.
摘要:
A unit is disclosed for transmitting motion to the hosiery suction tube in a circular knitting machine of the type having a fixed supporting plate to which a cylinder support with a vertical axis, an internal hosiery passage tube that is coaxial to the cylinder support, and an underlying perforated tube are rotatably coupled. The unit has respective flanges rigidly coupled below the cylinder support and above the perforated tube and supporting respective pluralities of permanent magnets that are distributed in an annular fashion and constitute a magnetic coupling between the flanges for the rotary actuation of the perforated tube. A collar of a material that has high magnetic reluctance is arranged in the air gap formed between the rings of facing magnets and has a device for rotary coupling to the hosiery passage and a device for selective coupling to said flanges or to said fixed supporting plate for causing or stopping the rotation of the hosiery passage tube.
摘要:
A variable speed drive motor is provided for imparting rotation to the improved and simplified gear assembly of the present invention so that the main drive shaft may be rotated at selected rates of speed. The drive gears includes a segment gear continuously moved in a back-and-forth movement and being operable to selectively impart reciprocatory motion to a cylinder drive shaft. Resilient means, in the form of a compression spring, is supported by the frame of the machine and is positioned to be engaged by the segment drive gear during at least one end portion of the back-and-forth movement thereof to reduce the noise and vibration of the gear assembly and to permit operation of the knitting machine at increased rates of speed during both rotary and reciprocating knitting.
摘要:
Rotations of a circular knitting machine are counted and encoded into electrical signals. After a prescribed number of revolutions a programmer and program indicating disc signal a switching mechanism to shift a cam drum to the next position in the pattern. A first circuit is provided for operating the needle cylinder at a slower speed during the aforesaid shifting operation, and a second circuit is provided for running the machine at maximum and intermediate speeds during the knitting operation in response to a preselected pattern. The programmer includes two types of output signals for controlling the production of fabric according to type or size.
摘要:
A drive mechanism for driving a plurality of components arranged in a ring shape to move back and forth in a radial direction, the drive mechanism is disposed in an annular disk, each component has a shoulder, the drive mechanism includes: a circular body coaxial disposed on the annular disk; a drive wheel rotatably disposed coaxially with the circular body; a cam ring disposed coaxially with the drive wheel, having a diameter smaller than that of the drive wheel, and including at least one cam; a plurality of pushing elements provided for contacting the shoulder of the respective components and each having a driven portion abutted against the cam ring, so that the pushing elements are moved toward or away from the axis, and the pushing elements contact the shoulders to drive the components to move in the radial direction or in the direction of the axis.