JPH0243909Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is an improvement of a tuck-in device for forming ears of a fragment loom, and more specifically, the present invention aims to improve the tuck-in device that forms the ears of a fragmentary loom. This invention relates to a new mechanism that can synchronously stop a loom and a tuck-in device so as not to damage needles, reeds, etc.

[Prior art and problems to be solved]

The tuck-in device used to form the selvedge tissue on a fragment loom is required to operate in precise synchronization with the main shaft of the loom, making it difficult to use a transmission member such as a timing belt as a power transmission means. is normal. However, when a timing belt is used as a transmission member, the timing belt often breaks during operation of the loom, and in that case, the timing of beating the reed 9 and the selvedge thread of the tuck-in device 1 may be affected. There was a problem that a discrepancy occurred in the movement with the folding needle 6, resulting in damage to the folding needle 6, reed 9, etc. Under these circumstances, recently, as shown in Figures 2 and 3, the phase of the drive shaft 5' connected to the main shaft of the loom and the driven shaft 4 of the tuck-in device 1' is monitored using a sensor 8. When the timing belt 2 breaks and a phase shift occurs between the drive shaft 5' and the driven shaft 4, a configuration has been adopted in which this is detected and the loom is stopped.

However, even if the loom is stopped by such means, if the timing belt 2 breaks, the movement of the tuck-in needle 6 and the beating operation of the loom will become out of synchronization, even if only temporarily. However, it was not possible to completely prevent damage to the tension needle 6, reed 9, etc.

The present invention was made in an attempt to improve the above-mentioned problems in conventional tuck-in devices and to provide a new mechanism that does not cause damage to the tuck-in needle, reed 9, etc.

[Means adopted to solve the problem]

The means adopted by the present inventor to solve the above technical problem will be described below with reference to the accompanying drawings.

That is, the technical means adopted by the present invention are: In the tuck-in device that operates in synchronization with the loom; In addition, each of these conductive members 2 is monitored by a sensor 3, and when any of the conductive members 2 is disconnected, the loom is stopped.
In the figure, reference numeral 4 indicates a driven shaft that transmits the rotation of a loom (not shown) to the tuck-in device 1, 5 indicates a drive shaft that is interlocked with the main shaft of the loom, 6 indicates a needle, and 7 indicates a gripper.

[Operation of the illustrated example device]

Therefore, to explain the operation of the illustrated embodiment of the tuck-in device, in the illustrated tuck-in device 1, a plurality of timing belts 2, 2 are disposed as conductive members, so that any one of the timing belts 2 is cut. However, since the remaining belt 2 rotates the driven shaft 4, there is no risk of phase shift between the beating operation of the loom and the operation of the selvedge thread folding needle of the tuck-in device, and the loom can be operated normally.

On the other hand, since a sensor 3 for detecting belt breakage is provided corresponding to each of these timing belts 2, 2, the corresponding detection sensor 3 detects breakage of the timing belt 2, and the loom is immediately or timely stopped. The timing belt 2 is stopped and the cut timing belt 2 can be replaced. In this case, the loom may be automatically stopped by turning off the main switch of the loom using the electrical signal output from the sensor 3, or the pilot lamp or It is also possible to notify the operator using a warning means such as a buzzer and to manually stop the operation. In this embodiment, a timing belt is used as the transmission member, but the transmission member is not limited to this, and the same effect can be obtained even if a chain is used, for example.

[Effects of this invention]

The stopping mechanism of the tuck-in device of the present invention is constructed as described above, so even if one conductive member is cut off, the remaining conductive members will ensure synchronization between the operating timing of the loom and the operation of the tuck-in device. Therefore, the selvage thread folding needle, reed, etc. will not be damaged.

In addition, cut conductive members do not necessarily need to be replaced immediately, but can be replaced in a timely manner, so it is possible to control the timing of stopping the loom with some degree of freedom, taking into account the weaving conditions of the fabric, improving work efficiency. can also contribute.

[Brief explanation of the drawing]

FIG. 1 is a plan view schematically showing the main parts of the stopping mechanism of the tuck-in device of the present invention, FIG. 2 is a schematic front view of the conventional tuck-in device, and FIG. 3 is a schematic plan view of the conventional tuck-in device. be. 1... Tuck-in device, 2... Timing belt, 3, 8... Sensor, 4... Driven shaft, 5...
drive shaft.

Claims (1)

[Scope of utility model registration request] In a tuck-in device that operates in synchronization with a loom; a driven shaft 4 of the tack-in device 1 and a drive shaft 5 that rotates in synchronization with the loom are connected through a plurality of conductive members 2, 2, and each of these conductive members 2 A stop mechanism for a tuck-in device is characterized in that the loom is monitored by a sensor 3 and the loom is stopped when any of the conductive members 2 is cut.