JPH07109049B2 - Suction and take-out device for knitted fabric - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a device for suctioning and removing a knitted fabric in a circular knitting machine for knitting a knitted fabric such as a tubular bodysuit or shorts. Regarding

(Prior Art) As a device for taking out a knitted fabric of a circular knitting machine of this type, a device using a mechanical driving force is described in, for example, Japanese Patent Publication No. 40-2706.

The knitting fabric take-out device of the circular knitting machine is, as shown in FIG.
An annular member b, which is integrated with a knitting machine cylinder (not shown), is rotatably fitted to the machine frame a, and a rotary frame body c is vertically provided below the annular member b. At the bottom of the rotating frame c,
A pair of bearings d is provided, and each bearing d has a transmission shaft e.
Is mounted. A bevel gear f is attached to one end of each transmission shaft e, and the bevel gear f meshes with a drive gear g.
One of the transmission shafts e is mounted on a transmission wheel h. A take-up roller i is provided in the middle of the rotary frame c. The sprocket j provided on the shaft of the take-up roller i and the transmission wheel h provided on the transmission shaft e include
Are connected via. Further, the upper rotary frame c of the take-up roller i is provided with a cross-shaped expanding member m and a pair of guide rollers n for sandwiching and guiding the knitted fabric.

Therefore, in the knitting fabric take-out device in the circular knitting machine described above, when the knitting fabric is knitted, the annular member b integrated with the knitting machine cylinder rotates and the bevel gear f meshed with the drive gear g rotates. , A bevel gear f and a transmission wheel h of a transmission shaft e.
Rotates, and the take-up roller i rotates via the transmission chain k and the sprocket j wound around the transmission wheel h,
As a result, the knitted fabric is forcibly wound around the winding roller i via the spreading member m and the pair of guide rollers n.

Further, Japanese Patent Publication No. 47-20587 describes a knitted fabric take-out device in a circular knitting machine that draws out a knitted fabric by using compressed air, cuts a knitting yarn, and then carries it out of the machine.

(Problems to be solved by the invention) A take-out device of a knitted fabric in a circular knitting machine described in Japanese Patent Publication No. 40-2706 has a structure in which a take-up roller has a constant length without cutting the knitted fabric into a predetermined length. Since only the amount is wound, the knitted fabric wound on the take-up roller is unwound, cut to a predetermined length and sewn to finish, which is not only a troublesome handling operation, but also the knitted fabric on the take-up roller. If it is biased and wound up, twisting, wrinkling, and winding tendency may occur, and the quality of the knitted fabric may be impaired. Moreover, it is necessary to use a mechanical driving force.

The take-out device of the knitted fabric in the circular knitting machine described in Japanese Patent Publication No. 47-20587 is to pull out the knitted fabric by using compressed air and carry it out of the machine. The take-out cylinder that rotates in synchronism with the machine cylinder is forcibly rotated via the gear transmission mechanism.Since the mechanical drive force of the circular knitting machine and its drive mechanism are required, the drive mechanism is In addition to being complicated, assembly and adjustment, maintenance and inspection are also troublesome, and moreover, since the power of the circular knitting machine is required, it is difficult to improve economical operation efficiency.

The present invention has been made in view of the above-mentioned circumstances, and the taking out of a knitted fabric such as a tubular body suit or shorts does not require a mechanical driving force by a circular knitting machine, In addition to eliminating twisting, wrinkling, and biased winding, the drive mechanism for taking out the knitted fabric is omitted, assembly adjustment and maintenance inspection are facilitated, and economical operation efficiency is improved. An object is to provide a take-out device.

[Structure of Invention]

(Means for Solving the Problem) A knitted fabric suction / unloading device of the present invention is attached to a knitting machine cylinder rotatably provided in a machine frame to guide a knitted fabric downward to guide the knitted fabric. A holding frame body fixed to the machine frame so as to be connected to the lower part of the knitted fabric guide cylinder having an air outlet on the side and a knitted fabric outlet on the lower side, and a plurality of ventilation holes on the peripheral surface. The air volume control cylinder fixed inside the holding frame so that the air vent is located away from the air outlet, the plurality of air vents on the peripheral surface, and the rods circumferentially spaced inside An air outlet of the holding frame through a ventilation port provided on the peripheral surface of a knitted fabric that is rotatably arranged inside the air volume control cylinder and is woven inside the holding frame And a rotating air volume cylindrical body that is sucked by the air sucked in and that rotates as the sucked knitted fabric rotates. , And a balance shutter pivotably attached to the knitted fabric take-out opening of the holding frame so as to be openable and closable.

(Working) In the knitting fabric suction / unloading device of the present invention, when knitting the circular knitting machine,
The knitted fabric knitted by a knitting machine cylinder or the like is hung while rotating in the knitted fabric guide cylinder that is sucking air fluid from above, and the air fluid is sucked outward from the air outlet of the holding frame to The lower part of the knitted fabric is adsorbed by the rotating air volume cylinder by the air fluid sucked in one direction, and the rotating air volume cylinder that adsorbs the knitted fabric is rotated with the rotation of the knitted fabric to prevent the knitted fabric from twisting. By stopping the air suction from the air outlet,
The balance shutter is pushed open by the weight of the knitted fabric, and the knitted fabric is taken out from the knitted fabric outlet.

(Example) The present invention will be described below with reference to an illustrated example.

In FIGS. 1 and 2, reference numeral 1 is a machine frame that is integral with a table, and a knitting machine cylinder 2 is rotatably fitted to the machine frame 1 via a bearing 3. A large number of needle grooves 4 are vertically formed on the outer circumference of the knitting machine cylinder 2, and a jack (not shown) or a knitting needle 5 is provided in each needle groove 4.
Is provided slidably in the vertical direction. In the machine frame 1 located on the rotary passage below the jack, a chevron-shaped lifting cam is provided to move the jack and the knitting needle 5 up and down.

A sinker bed 6 and a top ring are attached to the upper part of the knitting machine cylinder 2. A large number of sinker grooves are radially formed with respect to the axis of the knitting machine cylinder 2 in the sinker bed 6, and sinkers 7 for holding stitches are warmly fitted in the respective sinker grooves. The sinker 7 slides forward and backward with respect to the axial direction of the knitting machine cylinder 2 by a sinker cam 9 of a sinker cap 8 provided on an upper table 10 which is integral with the machine frame 1.

On the other hand, a box-shaped protective frame 11 is attached to the machine frame 1 located outside the jack, and the protective frame 11 has a patterning device (needle selecting device) not shown. ) Is provided. This patterning device is composed of, for example, a plurality of electromagnetic needle selecting devices that make a pair of upper and lower sides by each piezoelectric element. Each piezoelectric element of the electromagnetic needle selecting device has a needle selecting lever (operating member) of the above jack. It is pivotally attached by a spindle to push the bat.

On the other hand, a dial cap 13 of the dial mechanism 12 is concentrically provided above the axis of the knitting machine cylinder 2, and a rotary shaft 14 is attached to a tube shaft 13a of the dial cap 13. It is mounted via a bearing 15 so as to rotate in synchronism with the rotation of. A rotary disk 16 is horizontally extended to the outer peripheral upper part of the knitting machine cylinder 2 on the rotary shaft 14, and a dial is attached to an outer end portion of the rotary disk 16 to form a radial groove on the dial. The transfer jack 17 for formation is attached. In addition, the dial cap 13 and the rotating disc directly above the transfer jack 17
A thread cutting cutter 18 including a fixed cutter and a movable cutter (circular cutter) is provided at 16. The thread cutting cutter 18 is used for cutting the thread end.

In addition, on the upper part of the knitting machine cylinder 2,
A funnel-shaped knitted fabric guide cylinder 19 which is integral with the above is rotatably fitted to form an air fluid inlet port 19a. The machine frame 1 located in the lower opening 19b of the knitted fabric guide cylinder 19
The supporting frame 1a is provided with a holding frame body 20 having a substantially cylindrical cross section so as to communicate with the lower opening 19b. The holding frame body 20 is horizontally provided with an air outlet 21 provided with an auxiliary cylinder 21a, and an inclined surface 22 is provided at a lower portion of the holding frame body 20.
The knitted fabric outlet 22 forming a is provided so that the knitted fabric of shorts or body suit can be taken out, for example. A balance shutter 23 is pivotally attached to a lower portion of the holding frame body 20 near the knitted fabric take-out opening 22 by a support shaft 23a so as to be openable and closable.
The balance shutter 23 has its opening / closing force adjusted by moving the weight 24 in accordance with the scale 24a.

Further, inside the holding frame body 20, the air volume control cylinder 2 is arranged so as to be located immediately below the lower opening 19b of the knitted fabric guide cylinder 19.
5 is fixed. In this air volume control cylinder 25, a plurality (three) of shielding portions 25a and a plurality (three) of vent holes 25b (second
2) is formed, and as shown in FIG. 2, the shielding portion 25a is positioned so as to obstruct the passage of the air outlet 21 provided with the auxiliary cylinder 21a. Inside the air volume control cylinder 25, a rotary air volume cylinder 26 is rotatably fitted by a pair of upper and lower ball bearings 27a and 27b. A plurality of (four) vent holes 26a are formed on the peripheral surface of the rotating air volume cylinder 26 so as to communicate with the vent holes 25b provided in the air volume control cylinder 25. Further, inside the rotating air volume cylinder 26, a large number of rods 2 are attached to a pair of upper and lower wheel plates 28a.
8b are provided vertically in the circumferential direction at regular intervals.

The air outlet 2 of the auxiliary cylinder 21a provided on the holding frame 20 is provided.
1 communicates with an air suction device (not shown).

The operation of the present invention will be described below.

When the air suction device (not shown) is operated during knitting of the circular knitting machine, air is sucked from the air outlet 21 and the holding frame body
The inside of 20 becomes negative pressure, and the balance shutter 23 is closed against the force of the weight 24.

The knitted fabric knitted by the knitting machine cylinder 2 or the like is a knitting fabric guide cylinder.
It hangs down inside 19, and the lower end of the knitted fabric reaches the inside of the rotating air volume cylinder 26 inside the holding frame body 20. The air fluid sucked from the inflow port 19a of the knitted fabric guide cylinder 19 is supplied to the inside of the holding frame body 20 from the ventilation port 26a of the rotary air volume cylinder 26 as shown by an arrow in FIG. The air flows out from the air outlet 21 of the holding frame 20 through the ventilation port 25b. When the air fluid flows from the ventilation port 26a of the rotating air volume cylinder 26 to the ventilation port 25b of the air volume control cylinder, the lower part of the knitted fabric is adsorbed to the rotating air volume cylinder 26 by the air fluid,
The rotating air volume cylinder 26 that has adsorbed the knitted fabric rotates with the rotation of the knitted fabric, so that the hanging knitted fabric is not twisted.

Then, for example, by cutting the yarn end with the thread cutting cutter 18 for each knitted fabric of one shorts and stopping the air suction from the air outlet, the suction of the knitted fabric to the rotating air volume cylinder 26 is released, and the balance shutter is released. The knitted fabric 23 is pushed open by the weight of the knitted fabric and the force of the own weight 24, and the knitted fabric is taken out of the machine through the knitted fabric outlet 22.

Therefore, according to the present invention, twisting, wrinkling, and biased winding on the knitted fabric are eliminated without requiring a mechanical driving force, the drive mechanism is simplified, and assembly adjustment, maintenance and inspection are easy. Therefore, it is possible to improve economical operation efficiency.

〔The invention's effect〕

As described above, according to the present invention, the holding frame body is provided in the lower part of the knitted fabric guide cylinder that guides the knitted fabric downward, and the air volume control cylinder is fixed inside the holding frame body, A rotary air volume cylinder is rotatably provided inside the air volume control cylinder, and the knitted fabric knitted inside the holding frame is passed through the air volume control cylinder from a vent provided on the peripheral surface of the air volume control cylinder. The air that is sucked into the air outlet of the holding frame is adsorbed to the rotating air volume cylinder, and the rotating air volume cylinder that rotates with the rotation of the adsorbed knitted fabric is rotated to twist or wrinkle the knitted fabric. In addition to eliminating the biased winding, no mechanical drive force or drive mechanism is required, so the configuration is simplified, assembly and adjustment, maintenance and inspection are facilitated, and economical operation efficiency is improved. You can

[Brief description of drawings]

FIG. 1 is a sectional view of a device for sucking and taking out a knitted fabric according to the present invention,
FIG. 2 is an enlarged sectional view taken along the chain line AA in FIG.
The drawing is a cross-sectional view of a conventional take-out device for a knitted fabric. 1 ... Machine frame, 2 ... Knitting machine cylinder, 5 ... Knitting needle, 19 ...
… Knitted fabric guide cylinder, 20 …… Holding frame, 21 …… Air outlet,
22 …… Knitting fabric outlet, 23 …… Balance shutter, 24 ……
Weight, 25 …… Air volume control cylinder, 26 …… Rotary air volume cylinder.

Claims (1)

[Claims] 1. A knitted fabric guide cylinder which is attached to a knitting machine cylinder rotatably provided on a machine frame and which guides a knitted fabric downward, an air outlet on the side, and a knitting fabric outlet on the lower side. A holding frame body fixed to the machine frame so as to be connected to the lower part of the knitted fabric guide cylinder body, and having a plurality of ventilation holes on the peripheral surface and holding it so that the ventilation holes are located away from the air outlet An air volume control cylinder fixed to the inside of the frame, a plurality of vent holes on the peripheral surface, and rods circumferentially spaced at the inside are arranged rotatably inside the air volume control cylinder. The knitted fabric knitted inside the holding frame is adsorbed by the air sucked into the air outlet of the holding frame through the airflow control cylinder through the ventilation hole provided on the peripheral surface, and of the adsorbed knitted fabric. The rotating air volume cylinder that rotates with the rotation, and the rose that is pivotally attached to the knitted fabric take-out opening of the holding frame to open and close freely. Knitted suction extraction device, characterized by comprising a scan shutter.