JPH0133667Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a device for alleviating the shock of a circular knitting machine driven at high speed when the knitting machine suddenly stops.

(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, when the rotational speed of the knitting machine increases rapidly and rotates at high speed, as has been the case recently, knitting defects may occur and the knitting machine may suddenly stop. In this case, the heavy fabric winding section suspended by the frame cannot be stopped abruptly, and therefore the knitting machine rotates a certain distance by inertia and then stops. There was a drawback that the occurrence of knitting defects could not be suppressed to the minimum level, but rather the occurrence of knitting defects was amplified.

Additionally, 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 frames and the fabric winding section. It was hot.

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

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.

A gear 11 for driving the cloth winding section 5 is engaged with a gear 10 provided on the driving shaft 9, and the gear 10 and the gear 11 for driving the cloth winding section 5 are respectively provided in the gap 8A of the fixing member 8. In addition, the cloth winding section drive gear 11 is fitted and positioned within the cavity 8C separated by the protrusion 8B on the inner edge of the cavity 8A.

Reference numeral 12 denotes an annular rotating member for driving the winding frames 6, 6, which is fitted and positioned in the gap 8D separated by the protrusion 8B in the same way as described above, and is rotatable. The winding frames 6, 6 are fixed to , and 12A is a cutout portion in which a part of the rotating member 12 is cut out. 13 is a cover plate fixed to the fixing member 8, 14 is a pushing piece embedded and fixed to the driving gear 11, and the same piece 14 is positioned in the notch 12A, 15
is a support piece near the notch 12A and the rotating member 1
2, and 16 is a known shock absorber using oil, a cylinder,
17 is the piston of the same cylinder 16, piston 1
7 is fixed to the hanging part 14A of the pushing piece 14, and a cylinder 16 is rotatably connected to the supporting piece 15, and 18 is a tension spring, which
It is connected and fixed between A and the support piece 15.

Next, to explain the operation of the present invention, first, when the driving shaft 9 of the knitting machine is driven, the upper hook 2 and the lower hook 3
and the cloth winding section rotating gear 11 are driven at the same time, and as shown in FIG. The rotating member 12 is pushed and rotated, and the winding frames 6, 6 are rotated by the pushing and rotation of the rotating member 12.

Furthermore, when knitting defects occur and the rotation of the knitting machine is abruptly stopped, as shown in FIG.
Reference numeral 2 denotes a shock absorber, which is stopped after rotating for a certain distance via a cylinder 16. In other words, the fabric winding section 5 suspended by the pair of winding frames 6, 6 is not abruptly stopped and rotates. After the member 12 has rotated a certain distance, the rear edge 12C of the notch 12A stops at the position shown in FIG.

Incidentally, when the rotating member 12 rotates and stops at the position shown in FIG. 4, the rotating member 12 is moved again to the position shown in FIG. The state returns to the starting state, but in this case, the tension spring 18, which has a slightly weaker force than the pressing spring, closes the notch 12A.
When the front edge 12B of the front edge 12B comes into contact with the pressing piece 14, a sudden impact is not applied.

(Effect) When knitting defects occur, when the circular knitting machine driven at high speed is suddenly stopped, that is, when the upper hook 2, lower hook 3, and the gear 11 for rotating the fabric winding section are suddenly stopped, the gear 11
The rotating member 12, which is pushed and rotated via the cylinder 16, is not suddenly stopped, but is stopped after rotating for a certain distance via the shock absorber and the cylinder 16.
That is, the fabric winding unit 5 suspended by the pair of frames 6, 6 is stopped after rotating for a certain distance, so that the impact on the fabric winding unit is absorbed and alleviated, and the inertial rotation of the knitting machine is prevented. This prevents the expansion and occurrence of knitting defects, and furthermore, it is possible to prevent damage to the winding frames 6, 6, etc. for hanging down the fabric winding portion.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic front view of a circular knitting machine, FIG.
The figure is a perspective view showing the relative position of the pushing piece, and FIGS. 4 and 5 are plan views for explaining the operation of FIG. 3. DESCRIPTION OF SYMBOLS 1... Circular knitting machine, 5... Fabric winding part, 11... Rotating member rotation gear, 12... Rotating member, 14...
Push piece.

Claims (1)

[Scope of utility model registration request] In a circular knitting machine having an upper hook, a lower hook, and a driving shaft 9 for rotating the fabric winding section, a pushing piece 14 is provided on a gear 11 for rotating the fabric winding section driven by the driving shaft 9,
In addition, an annular rotating member 12 is rotatably provided inside the gear 11, and a notch 12A is provided in the rotating member 12.
A pushing piece 14 is provided in the notch 12A so that it can be freely locked therein, a shock absorber and a cylinder 16 are provided between the pushing piece 14 and the rotating member 12, and a fabric winding portion is provided on the rotating member 12. 5. Winding frames 6, 6 for drooping are provided, and when the circular knitting machine is stopped, the rotating member 12 is used as a shock absorber and cylinder 16.
1. A stopping device for a circular knitting machine, characterized in that the stopping device is configured to be stopped after rotationally moving a certain distance through the .