JPH02460Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention is a device that alleviates the shock caused when the knitting machine suddenly stops in a circular knitting machine driven at high speed.

(Prior art) Conventionally, the fabric winding drive member, which was driven integrally with the upper and lower hooks, was provided with a pair of frames and allowed to hang down, and the fabric winding section was fixed to the frame and integrated with the upper and lower hooks. However, as the rotational speed of knitting machines increases rapidly and rotates at high speeds, it is difficult to stop the knitting machine abruptly due to the occurrence of knitting defects, for example. In this case, the heavy fabric winding section suspended by the frame cannot be stopped abruptly, and the actual situation is that the knitting machine rotates a certain distance due to inertia and then stops. Therefore, the occurrence of knitting defects cannot be suppressed to the minimum limit, but rather has the disadvantage that the occurrence of knitting defects is magnified.

In addition, when a knitting machine that is rotating at high speed is suddenly stopped, a large impact force is applied to the pair of frames that hang down the fabric winding section, causing damage to the frame and the fabric winding section. It was hot.

(Example) The present invention solves the above-mentioned drawbacks, and will be explained below based on examples shown in the drawings.

1 is a circular knitting machine, 2 is an upper hook, 3 is a lower hook, 4 is a knitted fabric, 5 is a fabric winding part, 6, 6 is a winding frame for hanging the fabric winding part, 7, 7 are The legs 8 are fixed members, and 9 is a driving shaft for driving the upper hook 2, the lower hook 3, and the fabric winding section 5, and these devices are appropriately provided by conventionally known means.

Embodiment 1 is shown in FIG. 2, and the driving shaft 9
The driving gear 11 of the dough winding section 5 is meshed with the gear 10 provided at
The cloth winding section drive gear 11 is fitted to the fixing member 8 via a bearing 13 and positioned within the hollow section 8A.

Reference numeral 12 designates an annular rotating member for driving the winding frames 6, 6, which is fitted onto the driving gear 11 via a bearing 14 for positioning and is rotatable. Winding frames 6, 6 are fixed via metal fittings 15, 16, 16 are concave locking members provided on the drive gear 11, and convex locking members provided on the rotating member 12. 17 and the locked state is maintained.

Reference numeral 18 denotes a shock absorber having a tip 18A disposed in the rotating direction by a fixture 23 on the rotating member 12, and a stopper member 19 provided on the drive gear 11 is engaged with the tip 18A. . 20 is an elastic member using a coil spring or the like, and is suspended between a metal fitting 21 provided on the drive gear 11 and a metal fitting 22 provided on the rotating member 12, and acts to control the action of the return force of the shock absorber 18. That's what I'm doing. The spring constant of the elastic member 20 is smaller than that of the shock absorber 18, and is large enough to allow the fabric winding section 5 to rotate freely. The strength of the shock absorber 18 is such that it can sufficiently absorb the inertia force that occurs when the rotation state at the maximum rotation speed is abruptly stopped when the fabric 4 wound on the fabric winding unit 5 is fully wound. It's about the size. Next, the operation of the present invention will be explained. First, when the driving shaft 9 of the knitting machine is driven, the upper hook 2, the lower hook 3, and the gear 1 for rotating the fabric winding section are rotated.
1 are driven simultaneously, as shown in FIG.
The protrusion locking member 17 of the rotary member 12 is pushed through the recess locking member 16 fixed to the rotary member 1, the rotary member 12 is pushed, and the rotation of the rotary member 12 causes it to be rolled up. The take-up frames 6, 6 are rotated. When the rotation of the knitting machine suddenly stops due to needle flaws, etc., as shown in FIG.
Even if the drive of the rotating member 12 is abruptly stopped, the rotating member 12 rotates a certain distance via the shock absorber 18 and then stops. That is, the fabric winding section 5 suspended by the pair of winding frames 6, 6 is not suddenly stopped, and the rotating member 12 rotates a certain distance and then stops in the state shown in FIG. 4.

Incidentally, when the rotating member 12 rotates and stops at the position shown in FIG.
0, the rotating member 12 returns to the starting state as shown in FIG.

Embodiment 2 shown in FIG. 5 has a driving gear 11A and a rotating member 12A that are directly incorporated into a fixed member 8A via bearings 13A and 14A, respectively. The member 12A is rotatable with respect to the drive gear 11A, and rotational force is transmitted by the uneven locking members 16A and 17A, and the shock absorber 18A and stopper member 19A prevent problems in the case of sudden stopping. It will stop without any trouble.

(Function) When knitting defects occur, when suddenly stopping the circular knitting machine driven at high speed, that is, after suddenly stopping the upper hook 2, lower hook 3, and the gear 11 for rotating the fabric winding section, the gear 11
The rotating member 12, which is pushed and rotated via the shock absorber 18, is not suddenly stopped, but stops after rotating for a certain distance via the shock absorber 18. That is, the fabric winding section 5 suspended by the pair of frames 6, 6 rotates a certain distance and then stops, so that the impact on the fabric winding section is absorbed and alleviated, and the inertial rotation of the knitting machine is prevented. This prevents the expansion and occurrence of knitting defects.
This has the effect of preventing such damage.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is a schematic front view of a circular knitting machine, Fig. 2 is a schematic sectional view of the main part showing the rotation transmission part of the fabric winding part, and Fig. FIG. 4 is a perspective view showing the relative position of the uneven locking member; FIG. 4 is a perspective view showing the relative position of the shock absorber; FIG.
The figure is a schematic sectional view of the main part of Example 2. 1... Circular knitting machine, 5... Fabric winding section, 11... Fabric winding section driving gear.

Claims (1)

[Scope of utility model registration request] In a drive device for a fabric winding section 5 driven by a driving shaft 9 of a circular knitting machine, a gear 1 provided on the driving shaft 9
0, uneven locking members 16 and 17 are provided between the drive gear 11 of the fabric winding section 5 driven by the drive gear 11 and a rotating member 12 rotatably provided on the gear 11,
A shock absorber 18 is provided on the rotating member 12, and a tip portion 18 of the shock absorber 18 is provided.
The stopper member 19 latched to the drive gear 1
1, and an elastic member 20 is provided so that when the rotating driving shaft 9 stops, the rotating member 12 rotates a certain distance via the stopper member 19 and the shock absorber 18 and then stops. A winding drive device for a circular knitting machine, characterized in that the winding drive device for a circular knitting machine is configured such that the return force of the shock absorber 18 is controlled by an elastic member 20.