JPH1046455A - Automatic winding and discharging apparatus for circular knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a winding mechanism as a whole and prevent a knit fabric from shifting in the longitudinal direction of a knit fabric roll in a winding apparatus of the kind of winding the knit fabric without using a reel roll (a winding shaft). SOLUTION: This automatic winding apparatus for a circular knitting machine is obtained by installing a horizontal moving plane 1 composed of the first at least one roll for transferring a knit fabric end hung from a take-up roll by the own weight of the knit fabric F, a vertical moving plane 2 composed of the second at least one roll for changing the direction of the knit fabric end transferred with the horizontal moving plane 1 and winding the knit fabric into a rolled shape, the third roll 3 located at a position where the front end of the horizontal moving plane 1 crosses the lower end of the vertical moving plane 2 and vertical moving plane holding means (4a, 4b and 4c) for supporting the vertical moving plane 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an automatic winding and discharging device for a circular knitting machine. More specifically, a series of devices provided below the knitting unit of a circular knitting machine, which flattens a tubular knitted fabric hanging down from the knitting unit without using a reel roll (winding shaft). And a device for automatically discharging the knitted fabric.

[0002]

2. Description of the Related Art As a device for winding a knitted fabric without using a reel roll, for example, the inventions and devices of Japanese Patent Application Laid-Open Nos. 5-44144 and 50-82359 are known. The invention of Japanese Patent Application Laid-Open No. 5-44144 discloses an automatic knitting fabric winding device including a knitting fabric support conveyor and a winding-in conveyor. The take-up conveyor is located at the front end of the knitted fabric support conveyor and has a transfer surface that rises at an acute angle to the transfer surface of the knitted fabric support conveyor. This acute angle transfer surface inverts the leading end of the flat knitted fabric in the winding direction to form a folded winding start portion, and subsequently contacts the periphery of the knitted fabric roll to assist in tightly winding the knitted fabric. I do. In the invention of Japanese Patent Application Laid-Open No. 50-82359, there is no clear distinction between a conveyor for supporting a knitted fabric and a conveyor for winding up, and a series of plural rollers forming a recess as a whole has the same function.

[0003]

Problems to be Solved by the Invention Japanese Patent Laid-Open No. 50-8 / 1982
With respect to 2359, the disadvantage of the knitted fabric being displaced in the longitudinal direction of the knitted fabric roll (see FIG. 10 of the accompanying drawings of the present application) is pointed out by the former Japanese Patent Laid-Open No. 5-44144. However, even in the invention of Japanese Patent Application Laid-Open No. 5-44144, no specific and positive solution to this is described. JP-A-5-441
In the case of the cord-shaped transfer surface belt 44, for example, when both ends of the flat knitted fabric contact with the cord surface and when they do not contact with the cord surface, there is a possibility that a defect occurs in the longitudinal direction of the knitted fabric roll. Can be The present invention relates to a winding device of the type in which a knitted fabric is wound without using a reel roll (winding shaft), and the winding mechanism is improved as a whole, and the knitted fabric is shifted in the longitudinal direction of the knitted fabric roll. It is to try to prevent.

[0004]

An automatic winding device for a circular knitting machine according to the present invention is knitted by a knitting section of the circular knitting machine.
In a knitting fabric take-up device that winds a knitted fabric that hangs, a horizontal moving surface including at least one first roll for transferring a knitted fabric end that hangs down by its own weight from a take-up roll, A vertical moving surface composed of at least one second roll for changing the direction of the end of the knitted fabric transferred by the horizontal moving surface and winding the roll into a roll shape, and a front end of the horizontal moving surface and a lower end of the vertical moving surface. A third roll is provided at an intersecting position, and a vertical moving surface holding means for supporting the vertical moving surface is provided. The automatic winding and discharging device of the circular knitting machine according to the present invention includes the above-mentioned new automatic winding device,
This is a combination of an automatic ejection device known per se. The automatic discharge device known per se is a cutting means for cutting the knitted fabric between the knitted fabric roll and the take-up roll, and a dispensing means for inclining the horizontal moving surface and the vertical moving surface after the cutting and discharging the knitted fabric roll. A gate opening / closing device for a guard net, which can discharge a knitted fabric roll and is controlled by a control device, a detecting means for detecting that the knitted fabric has been discharged outside the machine, and a knitting with a desired knitted fabric diameter. Machine stop, cutting of knitted fabric,
A series of steps to automatically start the knitting machine after opening and closing the gate of the guard net, transferring the knitting fabric roll, and discharging the knitting fabric roll (stop the knitting machine when the knitted fabric is not discharged out of the machine by the detection means) Control means for controlling the operation.

[0005]

The vertical moving surface holding means for defining the crossing angle between the horizontal moving surface and the vertical moving surface is characterized in that the winding start of the knitted fabric is 90 to 120 degrees and the winding end is the outer diameter of the knitted fabric roll. 140 degrees to 18 centering on the third roll so as to follow
It is preferable that the position can be changed so as to extend to 0 degrees. Further, it is preferable to provide a pressing means which is attached so as to be movable in the longitudinal direction of the knitted fabric roll according to the width of the knitted fabric, and presses a substantially central portion of the knitted fabric roll.
Also, providing a guide means for preventing the knitted fabric roll from falling,
It is preferable to provide knitted fabric end guide means for guiding the cut knitted fabric end to the horizontal movement surface. When each element is viewed from the material side, it is preferable that the first roll, the second roll, and the third roll are made of a material having a frictional force, a good separation of the fabric, and an excellent wear resistance.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, a knitting portion (not shown) is provided above a bed 13 supported by a plurality of legs 11, 12, and a winding portion 20 is provided below the knitting portion.

At the bottom of the legs 11, 12, a support member 22 for fixing the legs 11, 12 and rotatably supporting the winding section 20 is provided. Legs 11, 1
Between them, a guard net (not shown) is attached. In the guard net, the gate plate can be automatically opened and closed right and left or up and down in order to discharge the knitted fabric roll FR wound by the winding unit 20 to the outside of the machine. The gate plate opening / closing mechanism of the knitted fabric roll discharge device is not limited to the above-mentioned automatic opening / closing mechanism. For example, the discharge opening of the guard net is covered with a thin thin plate, and the knitting is performed with the discharge of the knitted fabric roll. It can also be implemented by pushing the thin plate open with a ground roll and discharging it outside the machine.

A rotatable gear ring is accommodated in the bed 13, and a winding unit 20 is connected via two driving bars 14 attached to the bottom surface of the gear ring.
Can rotate at the same speed as the gearing.

Below the winding section 20, two beam bolts 15 and 16 are mounted.
5 and 16 are integrally attached to the winding center rotating portion 17 on the support member 22.

As shown in FIG. 2, the knitted fabric roll forming and winding portion of the present invention is used to change the direction of the horizontal moving surface 1 and the end of the knitted fabric transferred by the horizontal moving surface 1 and wind it into a roll. And a third roll 3 at a position where a front end of the horizontal movement surface 1 and a lower end of the vertical movement surface 2 intersect.

The first rolls 1a, 1a,
Both ends of 1b, 1c and the third roll 3 are rotatably connected to an inverted T-shaped horizontal moving surface frame 1d. The second rolls 2a and 2b and the third roll 3 forming the vertical moving surface 2
Are rotatably connected to a rectangular vertical moving surface frame 2c. Preferably, each of the first, second, and third rolls is arranged along the outer circumference of the maximum diameter of the knitted fabric roll FR. Further, as shown in FIG.
The winding side frame 18 is rotatably supported at both ends of the third roll 3 outside d. As shown in FIG. 4, a half-moon-shaped gear 9a is fixed downward about the mounting portion of the third roll 3 of the horizontal moving surface frame 1d.

The first rolls 1a, 1b, 1c, the second rolls 2a, 2b, and the third roll 3 are preferably formed of a material having a frictional force, good cloth separation, and excellent wear resistance. Urethane rubber (AU, EU), fluorine rubber (FKM), nitrile rubber (NBR), epichlorohydrin rubber (CO, ECO), and suede-like leather can be used. Taking nitrile rubber (NBR) as an example, KS-2 or FF-30 manufactured by Kureha Rubber Co., Ltd. (Osaka) can be used.

The crossing angle between the horizontal moving surface 1 and the vertical moving surface 2 is 90 degrees with the change in the roll diameter of the knitted fabric roll FR (FIG. 2).
The free end side of the vertical movement surface frame 2c is supported by an elastic member (for example, a spring) 4a so as to be able to open and close from 180 degrees (β angle in FIG. 3) to 180 degrees. The other end of the spring 4a is fixed to a substantially central portion of a guide member 6 (described later). Preferably, the tension of the spring is adjustable. Further, as shown in FIG.
It is preferable to provide positioning stoppers 4b and 4c for limiting the opening / closing position of c to the minimum angle and the maximum angle so that the stop position can be adjusted.

A guide member 6 is fixed to the top of the horizontal moving surface frame 1d so as to surround the side surface of the knitted fabric roll FR so that the knitted fabric roll FR does not fall from each of the moving surfaces 1 and 2. Further, in one of the longitudinal directions of the guide member 6,
A plate-shaped transfer guide member 10 that discharges the knitted fabric roll FR out of the machine when the knitted fabric roll FR is to be described later is fixed.

On the beam bolts 14 and 15, FIG.
As shown in Fig. 7, a motor 9c, which is a drive source for transferring the knitted fabric roll FR, is provided, and a gear 9b on a rotating shaft of the motor 9c is meshed with the half-moon gear 9a.
Sensors (not shown) are arranged at the winding position and the unwinding position so that the horizontal transfer surface is moved between the winding position and the unwinding position of the knitted fabric roll by the motor 9c. Further, the motor 9c is controlled to rotate forward and reverse by a signal indicating that the knitted fabric roll has reached the set count value and a signal indicating that the knitted fabric roll has been discharged.
For example, at the time of winding the knitted fabric, the horizontal moving surface is lowered and inclined at 15 to 20 degrees (γ angle in FIG. 4) toward the third roll (knitted fabric roll winding position: see FIG. 4), and At the time of ground roll transfer, the horizontal moving surface is
The knitted fabric roll is controlled to a position where it rises and inclines at 5 to 30 degrees (the δ angle in FIG. 5) (knitted fabric roll transfer position: see FIG. 5). It is preferable that the transfer guide member 10 is inclined downward toward the gate portion 23a of the guard net 23 at the knitted fabric roll transfer position. The knitting fabric roll-out means can be implemented by a chain drive, a timing belt drive, a link mechanism, an air cylinder, a hydraulic cylinder, or a linear motor in addition to the gear drive described above. Furthermore, guard net 23
Outside the gate portion 23a, a detecting means 31 for detecting that the knitted fabric roll FR has been discharged outside the machine is provided with a knitted fabric roll F.
It is arranged at the transfer position of R. At the time of controlling the discharge device of the knitted fabric roll FR, if the detection means 31 detects the previously discharged knitted fabric roll FR or an object that hinders the discharge of the knitted fabric roll FR, the control of the discharge device of the knitted fabric roll FR is performed. To stop. The detecting means 31 is preferably a mat sensor.

In order to solve the problem of the disadvantage that the knitted fabric is displaced in the longitudinal direction of the knitted fabric roll (see FIG. 10), which is a drawback of winding without using a reel roll, in a preferred embodiment, as shown in FIG. In the center of the knitted fabric roll FRC
Is provided. The pressing means 5 includes a connecting member 30 which is laid between the vertically moving surface frames 2c so as to be movable in the longitudinal direction of the knitted fabric roll FR in accordance with the knitted fabric width.
Attached to. It is preferable that at least a part of the pressing means 5 is subjected to an antistatic treatment.

An outline of a drive mechanism of the winding unit 20 will be described with reference to FIGS. First, the known cam load 24
The up and down movement of the lever 25 is converted into a rotational movement by the action of a ratchet wheel, and the coaxial take-up roll 2
1a is rotated. Further, a first sprocket wheel 21d attached to one end of a take-up roll 21a
Through a first chain 26 to a second sprocket wheel 27 and from a third sprocket wheel 28 coaxial with the second sprocket wheel 27
9 and transmitted to the fourth sprocket wheel 3b fixed to the third roll 3 at the same speed or slightly increased speed as the take-up roll 21a.

As shown in FIG. 6, from the gear 3a fixed to the third roll 3 to the gears 1g, 1f, 1e fixed to the respective ends of the first rolls 1c, 1b, 1a, between the respective gears. Power is transmitted through the idle gears 1j, 1i, 1h at the same speed and in the same rotational direction as the third roll 3. Similarly, the gear 3a
2 is fixed to each end of the second rolls 2a, 2b
Power is transmitted to d and 2e at the same speed and in the same rotational direction as the third roll 3 via idle gears 2f and 2g between the respective gears.

In the illustrated embodiment, the lever 25 moves up and down on the cam load 24 as a driving source for winding. In addition to this, a bevel gear mechanism provided at the center of the winding by using the rotating force of winding. May be used as a winding drive source, or a motor may be used as a winding drive source.

Next, a series of operations of discharging and automatic winding of the knitted fabric roll will be described. In this series of operations, a fixed position stop switch, a knitted fabric cutting device, a gate opening / closing device of a guard net, and a power supply device can use the ones proposed by the applicant in Japanese Patent Application Laid-Open No. 5-86566.

As shown in FIG. 7, the cut-off knitted fabric edge FE hangs down along the knitted fabric edge guide means 7 and reaches the horizontal moving surface 1 with the first knitted fabric edge FE. Roll 1a,
The knitted fabric end FE that has moved on the horizontal movement surface by the rotation of 1b, 1c changes direction so as to rise on the vertical movement surface 2 by the rotation of the third roll 3. And the second roll 2a,
After the vertical movement surface 2 is raised by the rotation of 2b (see FIG. 2), the end FE of the knitted fabric is moved to the vertical movement surface 2 by the weight of the knitted fabric.
Crumbles down by the time it reaches the top. Further, since the knitted fabric is continuously fed, the knitted fabric roll FE is formed around the collapsed knitted fabric. It is preferable that at least a part of the knitted fabric edge guide means 7 is subjected to an antistatic treatment.

As shown in FIG. 8, as the roll diameter of the knitted fabric roll FR increases, the weight of the knitted fabric roll FR also increases.
The intersection angle between the horizontal movement plane 1 and the vertical movement plane 2 increases. Therefore, the horizontal moving surface 1 and the vertical moving surface 2 are sufficiently aligned with the outer periphery of the knitted fabric roll FR.

When the fabric roll FR reaches a desired roll diameter (winding count value), the knitting machine stops at a fixed position. Next, the knitted fabric cutting device 8 (see FIG. 1) cuts the knitted fabric between the knitted fabric roll FR and the take-up roll 21. Almost simultaneously with the cutting of the knitted fabric, the gate plate is opened by the gate opening / closing device at the gate portion 23a of the guard net 23. Further, the motor 9c of the knitted fabric roll transferring means 9 is controlled to rotate the half-moon gear 9a meshing with the gear 9b, and the horizontal moving surface frame 1d, the vertical moving surface frame 2c and the guide means 6 are transferred to the transfer guide member 1.
0 is inclined from the winding position of the knitted fabric roll to the unwinding position of the knitted fabric roll, and the knitted fabric roll FR on the horizontally moving surface 1 and the vertically moving surface 2 is unwound.

The rolled-out knitted fabric roll FR rolls out the descending inclination of the roll-out guide member 10 and is discharged out of the machine from the gate portion of the guard net.

After the discharge means detects that the knitted fabric roll has been discharged out of the machine by the detecting means, the motor 9c moves the horizontal moving surface frame 1d, the vertical moving surface frame 2c, and the guide means 6 together with the transfer guide member 10. Then, the knitted fabric roll is moved from the roll out position to the knitted fabric roll winding position.

Thereafter, the gate portion 23 of the guard net 23
At a, the gate plate is closed by the gate opening / closing device, the winding count value is cleared to 0, and the knitting machine starts automatically.

[0028]

According to the present invention, the structure is simpler, the manufacturing cost is lower, the failure is less likely to occur, and
Consumable parts can be easily replaced. Further, since the structure is simple, it is easy to retrofit the existing knitting machine.

The disadvantage of the above-described winding which does not use the reel roll, which is a common defect of the knitted fabric that is displaced in the longitudinal direction of the knitted fabric roll, is described below.
The solution was achieved by setting the pressing means 5 for pressing C.

[Brief description of the drawings]

FIG. 1 is a side view of a winding and discharging device of a circular knitting machine according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the knitted fabric winding device according to the embodiment of the present invention.

FIG. 3 is an enlarged view of a main part of the knitted fabric winding device in a state where the roll diameter of the knitted fabric is maximized.

FIG. 4 is an enlarged view of a main part of the knitted fabric winding device according to the embodiment of the present invention with a peripheral device added.

FIG. 5 is an enlarged view of a main part of the knitted fabric winding device in a state where the knitted fabric roll is discharged.

FIG. 6 is an enlarged view of a main part of the knitted fabric winding device according to the embodiment of the present invention.

FIG. 7 is a perspective view of the knitting fabric winding device in a state where winding of the knitted fabric is started.

FIG. 8 is a perspective view of the knitted fabric winding device in a state where the roll diameter of the knitted fabric is maximized.

FIG. 9 is a side view of a winding and discharging device of a circular knitting machine according to an embodiment of the present invention, which includes a pressing device 5 for a knitted fabric roll.

FIG. 10 is a perspective view showing a state in which the knitted fabric is displaced in the longitudinal direction of the knitted fabric roll, which is a drawback commonly found in conventional winding devices that do not use a reel roll.

Claims (8)

[Claims] 1. A knitting fabric winding device for knitting a hanging knitted fabric by a knitting portion of a circular knitting machine, wherein the knitted fabric hanging down from the take-up roll (21) by its own weight of the knitted fabric (F). A horizontal moving surface (1) composed of at least one first roll (1a, 1b, 1c) for transferring the end; and a knitted fabric end transferred by the horizontal moving surface (1), and the roll is turned. A vertical moving surface (2) composed of at least one second roll (2a, 2b) for winding in a shape, a front end of the horizontal moving surface (1) and a lower end of the vertical moving surface (2) intersect with each other. An automatic winding device for a circular knitting machine, comprising: a third roll (3) at a position; and vertical moving surface holding means (4a, 4b, 4c) for supporting the vertical moving surface (2). . 2. The crossing angle between the horizontal moving surface (1) and the vertical moving surface (2) is 90 ° to 120 ° at the beginning of winding of the knitted fabric (F), and ends at the crossing angle of the knitted fabric roll (FR). Vertical moving surface holding means (4a, 4b, 4c) so as to extend from 140 to 180 degrees around the third roll substantially along the outer diameter of the third roll.
2. The device according to claim 1, wherein the position is changeable. 3. A pressing means (movable in the longitudinal direction of the knitted fabric roll (FR) according to the width of the knitted fabric, and for pressing a substantially central portion (FRC) of the knitted fabric roll (FR). The device according to claim 1 or 2, wherein (5) is provided. 4. A guide means (6) for preventing a knitted fabric roll from falling.
The device according to any one of claims 1 to 3, further comprising: 5. The apparatus according to claim 1, further comprising a knitted fabric end guide means (7) for guiding the cut knitted fabric end (FE) to the horizontal moving surface (1). 6. A first roll (1a, 1b, 1c), a second roll (1a, 1b, 1c).
The apparatus according to any one of claims 1 to 5, wherein the rolls (2a, 2b) and the third roll (3) are made of a material having a frictional force, a good material separation, and a high abrasion resistance. 7. A cutting means (8) for cutting a knitted fabric between a knitted fabric roll (FR) and a take-up roll (21), and after cutting, the horizontal moving surface (1) and the vertical moving surface (2) are inclined. Transfer means (9) for transferring a knitted fabric roll (FR)
A knitting fabric roll (FR) can be discharged, and a guard net gate opening / closing device controlled by the control device; and a detecting means (3) for detecting that the knitted fabric has been discharged out of the machine.
1) and stop the knitting machine at the desired knitted fabric diameter, cut the knitted fabric, open and close the gate of the guard net, transfer the knitted fabric roll, and discharge the knitted fabric roll (the knitted fabric is discharged out of the machine by the detection means). 7. The automatic winding and discharging of a circular knitting machine according to claim 1, further comprising control means for controlling a series of operations for automatically starting the knitting machine when the knitting machine is stopped. apparatus. 8. A guide means (6) for preventing a knitted fabric roll from falling.
The apparatus according to claim 7, further comprising: a transfer guide member (10) for transferring the knitted fabric roll (FR) provided in the above and discharging the roll outside the machine.