JPH076118B2 - Knitted fabric drawing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention is intended to pull down a knitted fabric knitted, for example, in socks, pantyhose, tights or the like while preventing it from being twisted by compressed air. The present invention relates to a knitted fabric drawing device.

(Prior Art) Conventionally, the knitted fabric drawing device in this circular knitting machine is configured as shown in FIG. 4 (Japanese Patent Publication No. 47-20587).

That is, in FIG. 4, a cylindrical exterior body b is vertically provided at the base of a support frame a in a circular knitting machine for knitting stockings, and a well-known knitting is provided above the exterior body b. The machine cylinder c is rotatably fitted. or,
Each knitting needle d is provided in a large number of vertical grooves of the knitting machine cylinder c so as to slide in the vertical direction by a cam mechanism (not shown) or the like. Above each knitting needle d, each well-known sinker is provided. e is provided so as to slide in the radial direction in association with the operation of each knitting needle d by a sinker cam or the like. Further, a well-known dial mechanism f is mounted on a machine frame (not shown) directly above the knitting machine cylinder so as to rotate in synchronization with the knitting machine cylinder c.

On the other hand, a funnel-shaped guide cylinder g is attached to the lid portion b1 of the exterior body b so as to guide the knitted fabric W knitted for co-operation of the knitting needles d and the sinkers e. A suction pipe h having an outlet h1 is horizontally attached to the lower portion of the outer casing b located below the guide tube g so as to suck air outward (sideward). Further, a gear box i is provided below the exterior body b, and bearings j1 and j2 are provided above the gear box i and the exterior body b. Further, the large gear k is attached to each of the bearings j1 and j2.
A perforated cylindrical body m integral with the above is rotatably fitted, and a large number of vent holes m1 formed in the peripheral side wall of the perforated cylindrical body m suck out air to the suction outlet h1. It is in communication. Further, a pinion n is meshed with the large gear k, and the large gear k meshed with the pinion n is the perforated cylindrical body m.
Is rotated in synchronization with the knitting machine cylinder c. The lower part of the gear box i is connected to guide the knitted fabric W in which the outlet pipe o is knitted to a storage box body (not shown).

Therefore, the knitted fabric withdrawing apparatus described above, when knitting, for example,
A knitted fabric knitted into socks, pantyhose, tights or the like is guided downward by a funnel-shaped guide cylinder g, and the large gear k is synchronized with the knitting machine cylinder c by a pinion n of the gear box i. And then rotate and the suction port h1
By vacuum sucking air from the suction pipe h having
Each knitted fabric is drawn out to the lower outlet pipe o while adsorbing the knitted fabric to the peripheral side wall of the porous cylinder m.

(Problems to be Solved by the Invention) However, in the knitted fabric drawing apparatus described above, a large number of vent holes m1 formed in the peripheral side wall of the perforated cylinder m are provided with the suction port h1.
When the knitted fabric W approaches the peripheral side wall of the perforated cylindrical body m where the suction port h1 is located, the knitted fabric W is biased to one peripheral side wall of the perforated cylindrical body m. A part of the knitted fabric W is sucked out and sucked out from a large number of vent holes m1 and pushed down by the weight of the knitted fabric W which follows the porous knitted fabric m.
Rubbed in the gear box i near the bottom of the knitted fabric W
Not only is there a possibility of soiling or damaging a part of the knitted fabric, but due to this, the knitted fabric W itself may be twisted, and there is a problem that the quality of the knitted fabric with a sharp corner is impaired.

The present invention has been made in view of the above-mentioned circumstances, and one side of the outer side of the knitted fabric knitted into a tubular shape without communicating the many vent holes of the perforated tubular body to the suction outlet and vacuum suction. The compressed air from the conical nozzle is blown to the side of the conical nozzle to pull it out downward, and the compressed air from the ejection port of the conical nozzle that communicates with the air supply passage formed in the dial body of the dial mechanism is used to form the knitting machine cylinder. The knitted fabric is pulled out while spraying to the inner circumference of the twist-preventing cylinder that rotates in synchronism to prevent stains and damage on the knitted fabric and twisting of the knitted fabric itself, and to improve the quality of the circular knitting machine. The purpose is to provide a device.

[Structure of Invention]

(Means for Solving the Problem) The present invention includes a knitting machine cylinder provided with a knitting needle rotatably fitted in a machine frame, and a dial mechanism axially mounted in a machine frame above the knitting machine cylinder. In a circular knitting machine, an outer cylinder and an inner cylinder are concentrically formed and fitted into the machine frame inside the knitting machine cylinder, and air supply ports are attached to the machine frames at the bases of both cylinders. An air outlet is formed in the upper connecting portion of the two cylinders so as to blow out compressed air in the axial direction, and a twist prevention cylinder is rotated in the machine frame inside the inner cylinder in synchronization with the knitting machine cylinder. Thus, the air supply passage is formed in the dial body of the dial mechanism, and a conical nozzle is connected to the lower part of the dial body so as to communicate with the air supply passage and eject downward.

(Operation) In the present invention, during knitting, one compressed air supplied from the air supply port is blown out in the axial direction from the air outlet through the air passage, so that, for example, a cylinder knitted into socks, pantyhose, tights, or the like. The outer side of the knitted fabric is blown with compressed air to the side of the conical nozzle so as to be drawn out downward, and the other compressed air of the conical nozzle communicated with the air supply passage formed in the dial body of the dial mechanism. By spraying from the inside of the knitted fabric to the inner circumference of the twist prevention cylinder that rotates in synchronization with the knitting machine cylinder from the downward injection port, it prevents stains and damage to the knitted fabric and twisting of the knitted fabric itself. It is intended to improve the.

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

1 to 3, reference numeral 1 is a machine frame of a circular knitting machine, and a bearing 2 is provided in the middle 1a of the machine frame 1 so as to be vertically moved by a cam mechanism (not shown). A bevel gear 3 is rotatably provided on the bearing 2. A drive gear 4 meshing with the bevel gear 3 is axially mounted on a drive shaft 4a mounted on the machine frame 1. The drive gear 4 rotates the bevel gear 3 meshing therewith. Has become. Further, a well-known knitting machine cylinder 5 is rotatably fitted into the cylindrical portion 3a of the bevel gear 3 via a slide key 6 and slides in the axial direction (vertical direction). . A large number of needle grooves 7 are formed in the longitudinal direction on the outer periphery of the knitting machine cylinder 5. Further, a well-known jack (not shown) and a knitting needle 8 are provided in the respective needle grooves 7 so as to be slidable in the vertical direction, and the knitting machine cylinder 5 has the above-mentioned bearing that moves up and down by a cam mechanism. It is fitted so as to move up and down and rotate via two and a plurality of uplifting rods 9. Further, a mountain-shaped lifting cam (not shown) is provided on the machine frame 1 located on the rotary passage below the jack so as to raise and lower the jack and the knitting needle 8 together. A well-known sinker bed 10 is mounted on the upper side of the machine cylinder 5, and a large number of sinker grooves are formed in the sinker bed 10 radially with respect to the axis of the knitting machine cylinder 5.
Furthermore, each sinker 11 for knitting a stitch is loosely fitted in each sinker groove, and each sinker 11 is a sinker cam of a sinker cap 12 provided on the upper table integral with the machine frame 1. Reference numeral 13 is provided slidably in the front-rear direction with respect to the axial direction of the knitting machine cylinder 5.

On the other hand, in FIG. 1, a patterning device (needle selection device) 14 is provided on the machine frame 1 located outside the jack.

On the other hand, in FIG. 1, a dial main body (also referred to as a dial cap) 16 of a known dial mechanism 15 is concentrically provided on the tube shaft 1b of the machine frame 1 above the knitting machine cylinder 5. On the pipe shaft 1b inside the pipe shaft 16a of the dial body 16, a rotary pipe shaft 17 is mounted so as to rotate in synchronization with the rotation of the knitting machine cylinder 5, and
An air supply path 18 is formed. A dial 19 is horizontally extended to the upper part of the outer circumference of the knitting machine cylinder 5 on the rotary tube shaft 17, and a known transfer jack 20 for knitting is provided at the outer end of the dial 19. It is attached. Further, the dial body 16 and the dial 19 directly above the transfer jack 20 are provided with a thread cutting cutter 21 composed of a fixed cutter and a movable cutter (circular cutter). It is designed to be cut. Furthermore, a transmission gear 22 is rotatably mounted on the upper portion of the rotary pipe shaft 17, and the transmission gear 22 rotates the rotary pipe shaft 17 in synchronization with the rotation of the knitting machine cylinder 5. ing. Further, a pipe joint 23 is loosely fitted on the upper part of the rotary pipe shaft 17 via a sealing material.
24 is connected to a compressed air source 26 via an electromagnetic opening / closing valve 25.

On the other hand, an outer cylinder 27 and an inner cylinder 28 are concentrically formed to form an air passage 29 in a holder 1c that is integrated with the lower machine frame 1 of the knitting machine cylinder 5. An air supply port 30 is attached to the holder 1c located at the base of the cylinders 27 and 28 so as to supply compressed air. Further, an air outlet 32 is bored in the upper connecting portion 31 of the two tubes 27, 28 so as to blow the air in the axial direction, and the air of the air outlet 32 has a knitted tubular shape. The outer side of the knitted fabric W is blown in the axial direction. Further, a bearing case 33 that is integral with the holding body 1c is attached to the lower portion of the holding body 1c.
Each bearing 34 is provided at 33. Furthermore, a short tube shaft 36 integral with the twist prevention cylinder 35 is fitted to each of the bearings 34 so as to rotate in synchronization with the knitting machine cylinder 5, and an upper portion 35a of the twist prevention cylinder 35 is The length of the inner cylinder 28 is substantially the same as that of the upper portion of the inner cylinder 28, and the twist prevention cylinder 35 is vertically provided so as not to fall out. Also, the short tube shaft 36,
A pulley 36a is formed, and this pulley 36a is connected via a timing belt 39 to an output shaft 38a of a step motor 38 on a support base 37 provided on the holding body 1c.
Further, as shown in FIGS. 2 and 3, a conical nozzle 40 is connected to the dial 19 of the dial body 16 so as to communicate with the air supply passage 18 and jet downward. .

That is, in the conical nozzle 40, a nozzle body 42 is attached to the inside of a truncated cone-shaped conical body 41 to form an injection passage 43 with a mounting bolt 44, and an injection port 45 is attached to the lower portion of the nozzle body 42. Are provided so as to communicate with the injection passage 43 and face downward.

On the other hand, in FIG. 1, a ring-shaped rotating ring 46 is attached to the lower portion of the twist prevention cylinder 35 and the short tube shaft 36, and a plurality of rings (see FIG. Then 4
Guide rod 47 of (book) is hung. Further, the operating rod 48 is provided on the lower surface of the rotating ring 46 located outside the guide rod 47.
Is provided so as to be longer than the guide rod 47, and the operating rod 48 is provided so as to be locked to the L-shaped rod 49a of the vertically movable conical gripping body 49. The conical gripping body 49 is adapted to rotate around the support shaft 49b together with the twist prevention cylinder 35. Further, an air cylinder 51 is provided upside down on a bracket 50 integral with the machine frame 1 located on the opposite side of the step motor 38, and an output shaft 51a of the air cylinder 51 is provided with an elevating ring 52. Is pivoted. Furthermore, a guide rod 53 having a stopper 53a is fixedly planted on the lifting ring 52 near the output shaft 51a, and the guide rod 53 is slidably aligned in parallel with the air cylinder 51 on the bracket 50. It is set up. Further, an engaging protrusion 52a is formed on the inner circumference of the elevating ring 52, and the retaining ring member 54 which holds the knitted fabric W is rotatably loosened on the engaging protrusion 52a so as not to fall out. The guide ring 47 and the operating rod 48 are loosely penetrated through the pressing ring member 54 so as to be vertically movable. Further, the pressing ring member 54 is configured to rotate together with the twist prevention cylinder 35 and the short tube shaft 36 by the guide rods 47 and the operating rods 48, and the opening 54a of the pressing ring member 54 is The conical gripping body 49 is adapted to be anastomosed and gripped via the tubular knitted fabric W. Furthermore, a pair of upper and lower first pair of first and second switches, such as a proximity switch, are provided on the lifting path of the lifting ring 52.
The sensor s1 and the second sensor s2 are attached so as to regulate the lifting range of the lifting ring 52, and the conical gripping body
A third sensor s3 such as a proximity switch detects the lower portion Wa of the knitted fabric W and operates the air cylinder 51 to move the lifting ring 52 and the pressing ring member on the lifting passage 49.
54, the opening 54a of the pressing ring member 54 is anastomosed to and grips the conical gripping body 49 via the knitted fabric W.

The operation of the present invention will be described below.

Therefore, now, for example, when knitting socks, pantyhose, tights or the like, when the drive gear 4 integral with the drive shaft 4a rotates, the drive gear 4 rotates the bevel gear 3 meshing with this. Then, the knitting machine cylinder 5, which is fitted to the bevel gear 3 with a sliding key, moves up and down by a cam mechanism (not shown) while rotating, whereby each knitting needle 8 of the knitting machine cylinder 5, each of the sinkers 11 and Ground yarn supplied from the cone for co-operation with the dial mechanism 15 and the like, for example,
It is designed to be knitted on knitted fabrics such as socks, pantyhose and tights. Further, the knitted fabric W has the above-mentioned twist prevention cylinder 35.
You will be guided inside.

On the other hand, in advance, one of the compressed air supplied from the air supply port 30 is blown out in the axial direction from the air outlet 32 through the air passage 29, and at the same time, by driving and rotating the step motor 38, Since the output shaft 38a of the step motor 38 rotates the pulley 36a connected through the timing belt 39, the pulley 36a rotates the twist prevention cylinder 35 in synchronization with the knitting machine cylinder 5, so that the knitted fabric W It prevents the occurrence of twisting.

Therefore, the knitted fabric W knitted in a tubular shape is guided into the twist prevention cylinder 35, so that one of the compressed air supplied from the air supply port 30 passes through the air passage 29 and the axial center of the air outlet 32. At the same time as being blown out in the direction, the outside of the tubular knitted fabric W is blown to the conical nozzle 40 side with compressed air so as to be drawn downward, and the electromagnetic opening / closing valve 25 is opened.
The other compressed air from the compressed air source 26 is supplied to the air supply passage 18 formed in the dial main body 16 of the dial mechanism 15, and further compressed air from the downward injection port 45 of the conical nozzle 40 communicating with this. Then, the knitted fabric W is pulled out while being sprayed onto the inner peripheral surface of the twist prevention cylinder 35 which rotates in synchronization with the knitting machine cylinder 5.

In this way, the lower part (knitting start part) Wa of the knitted fabric W is L rod 49a of the conical gripping body 49 which can be raised and lowered.
When the third sensor s3 detects this when it descends in the vicinity of, the above-mentioned air cylinder 51 interlocked with this is detected.
Since the output shaft 51a of the air cylinder 51 is guided by the guide rod 53 and descends, the lifting ring 52 connected to the output shaft 51a of the air cylinder 51 is operated.
At the same time that the pressing ring member 54 descends while being guided by the guide rods 47, the opening 54a of the pressing ring member 54
The conical grasping body 49 is anastomosed and grasped via the knitted fabric W,
The pressing ring member 54 and the conical gripping body 49 rotate on the operating rod 48 in synchronization with the twist prevention cylinder 35.

In this way, the knitted fabric W is attached to the lower portion of the twist prevention cylinder 35.
When the one knitting process is completed by the accumulation of particles, the air cylinder 51 operates, and the output shaft 51a is guided by the guide rod 53 to move upward, and the second sensor s2 causes the lifting ring to move.
Since the rising position of 52 is regulated and stopped, the stain and damage of the knitted fabric W and the twist of the knitted fabric itself can be prevented, and the quality can be improved.

The knitted fabric W deposited on the lower portion of the twist prevention cylinder 35
Is transferred to a knitted fabric take-out device (not shown) and, for example, in the case of pantyhose, it is transferred to the step of sewing the crotch part of the pantyhose.

〔The invention's effect〕

As described above, according to the present invention, at the time of knitting, one compressed air supplied from the air supply port is blown out in the axial direction from the air outlet through the air passage, so that, for example, socks, pantyhose, tights, or the like. The outer side of the knitted fabric is blown with compressed air toward the conical nozzle side so as to be drawn out downward, and the other compressed air is communicated with the air supply passage formed in the dial body of the dial mechanism. It is designed to be drawn out from the inside of the knitted fabric while spraying from the inside of the knitted fabric to the inner peripheral surface of the twist-preventing cylinder that rotates in synchronization with the knitting machine cylinder from the downward injection port of the knitting machine. Not only can it be prevented, but the quality can be improved, and so on.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a knitted fabric drawing apparatus of the present invention, FIG. 2 is a perspective view in which a part of a conical nozzle incorporated in the present invention is broken away, and FIG. 3 is a transverse cross-sectional view of the same. FIG. 4 is a sectional view of a knitting fabric drawing apparatus that has already been proposed. 1 ... Machine frame, 5 ... Knitting machine cylinder, 8 ... Knitting needle, 11 ...
… Sinker, 15 …… Dial mechanism, 16 …… Dial body, 18 …… Air supply path, 27 …… Outer cylinder, 28 …… Inner cylinder, 29…
… Air passage, 30 …… Air inlet, 32 …… Blowout port, 35 …… Twist prevention tube, 40 …… Cone nozzle, 41 …… Cone, 42 …… Nozzle body, 43 …… Injection passage, 45… … Injection port, 46 …… Rotating ring, 47 …… Guide rod, 48 …… Operating rod, 49 …… Cone gripping body,
51 …… Air cylinder, 52 …… Lifting ring, 54 …… Holding ring member.

Claims (1)

[Claims] 1. A circular knitting machine comprising a knitting machine cylinder having a knitting needle rotatably fitted in a machine frame, and a dial mechanism axially mounted on a machine frame above the knitting machine cylinder. An outer cylinder and an inner cylinder that are concentrically formed in the machine frame inside the machine cylinder to form air passages, an air supply port attached to the machine frame at the base of both cylinders, and an upper part of the cylinders. An air outlet formed in the connecting portion so as to blow the air in the axial direction, and a twist prevention tube fitted in the machine frame inside the inner cylinder so as to rotate in synchronization with the knitting machine cylinder. An air supply passage formed in a dial body of the dial mechanism, and a conical nozzle connected to a lower portion of the dial body so as to communicate with the air supply passage and eject downward. A knitted fabric drawing device.