JPH0543113Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention is based on a shuttle for a knitting machine, specifically, the boat itself is equipped with a weft thread breakage display device that detects and displays weft breakage. Regarding the boat shape.

<Prior Art> Conventionally, in order to detect yarn breakage of the weft yarn in a boat-type knitting machine, as shown in FIG. A through hole 5 is provided in each of the boat shapes 1, 1, . When a large number of boat shapes 1 are placed on the support frames 6, 7, all the boat shapes 1 are arranged so that the straight line 8 formed by connecting the through holes 5, 5, ... 5 of each boat shape 1 becomes the optical axis. , 1, ... 1, the floodlight 9 is placed at one end of the left and right ends (the right end in the figure), and the other end (the left end in the figure).
A light receiver 10 is disposed at. When a weft thread breakage occurs in any of the boat shapes 1, 1,...1, the weight 3 falls to the lower part of the recess 4, and the fallen weight 3 blocks the light reaching the light receiver 10 from the emitter 9. , an indicator light 11 electrically connected to the light receiver 10 in advance is turned on to detect weft thread breakage.

<Problem to be solved by the invention> However, in a knitting machine incorporating such a weft yarn breakage display device, although it is possible to detect when a weft yarn breakage has occurred in any of the boat shapes, it is difficult to detect when a weft yarn breakage has occurred. It is not possible to identify the boat shape itself, and as a result, workers have to work harder to find the boat shape where the weft thread breakage has occurred, and it takes a long time to find it, causing a delay in resuming work. There was a problem.

In view of the above-mentioned problems, this invention makes it possible to easily identify the boat shape itself where the weft thread breakage occurred, thereby reducing the burden on workers and improving productivity by shortening the time it takes to restart work. The challenge is to make it possible.

<Means for Solving the Problem> In order to solve this problem, this invention provides a weft yarn having a switch that is turned on by the weight that falls due to a breakage of the weft yarn, and an indicator light that is turned on when the switch is turned on. A feature is that a breakage display device is provided in the boat shape itself.

<Example> An example of this invention will be described below with reference to the drawings.

In FIGS. 1, 2, 3, and 4, an indicator light 12 such as an LED is provided on the upper end surface of the boat 1.
and a power source 1 such as a button battery.
4, respectively.

In addition, the recess 4, that is, the vertically extending downward space between the holes 17 and 18 in the weft supply path leading from the spool 16 attached to the central opening 26 of the boat shape 1 to the knotting work location (not shown) is provided. The recess 4 that is formed and accommodates the weight 3 has an LED 12 at one end.
a lead wire 20 electrically connected to the lead wire 20 whose other end is exposed at the lower end of the recess 4;
A groove 2 that holds another lead wire 22, one end of which is electrically connected to the negative electrode of the button battery 14 and the other end of which is exposed at the lower end of the recess 4.
3 and 23 are provided in the vertical direction.

Wire portions 19, 2 of two lead wires 20, 22
1 is disposed in another recess 24 formed in the lower end surface of the recess 4 so that when the conductive weight 3 falls due to breakage of the weft yarn 2, electrical continuity is established through the weight 3. The positive electrode of the button battery 14 and the LED 12 are further electrically connected by another lead wire 25.

In addition, the other reference numeral 27 in the figure indicates a hole through which the weft thread passes, and 5 indicates a through hole for forming an optical axis of a photoelectric switch for detecting breakage of the weft threads in all the boat shapes.

A large number of boat shapes 1 configured in this manner are placed on support frames 6 and 7 of a netting machine. When a yarn breakage occurs in the weft yarn 2 during the knitting work, the weight 3 of the boat shape 1 in which the yarn breakage occurred falls to the bottom of the recess 4, and as the weight 3 falls, the electric wire portion 19 of the lead wire 20 and the electric wire portion 21 of the other lead wire 22 are electrically connected via the conductive weight 3,
The LED lighting circuit is closed, LED12 lights up,
The operator is informed of the boat shape 1 where thread breakage has occurred. In addition, a photoelectric switch (not shown) that detects weft yarn breakage in all of the boat shapes is activated by the interruption of the optical axis by the fallen weight 3, and lights up an indicator light (not shown). The operator is notified that a thread breakage has occurred.

In the above embodiment, the wire portion 19 of the lead wire 20 and the wire portion 21 of the other lead wire 22 are connected to the conductive weight 3 to constitute the switch according to the present invention. It is also possible to use a switch whose contacts are closed by the weight of the switch.

<Operations and effects of the invention> As explained above, this invention is equipped with a weft thread breakage display device on its own, and when the weight suspended on the weft falls due to a weft thread breakage,
This dropped weight turns on the switch,
The indicator light is now lit.

Therefore, since the indicator light corresponding one-to-one with the boat shape in which the thread breakage of the weft thread has occurred is lit, the worker can easily find the boat shape in which the thread breakage has occurred, and It is possible to improve productivity by reducing the labor required for pattern discovery and shortening the time required to restart work.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the boat shape according to this invention, where Figure 1 is a side view of the boat shape, Figure 2 is a plan view of the same, Figure 3 is a partially enlarged plan view of the same, and Figure 4. 5 is an electric circuit diagram of a weft thread breakage display device for a boat-shaped model, and FIG. 5 is an explanatory diagram of a weft thread breakage display device for a conventional boat-shaped model. 1... Boat shape, 2... Weft, 3... Weight (switch), 12... Indicator light, 14... Power supply, 19,
21...Electric wire part (switch), 20, 22, 2
5... Lead wire.

Claims (1)

[Scope of Claim for Utility Model Registration] In a boat-shaped boat in which a weight is suspended from a weft thread, a switch disposed below the weight and turned on by the weight falling due to a breakage of the weft thread; A boat-type knitting machine characterized by being provided with a weft thread breakage display device having a lighting indicator light.