JPH0317202Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for detecting seams of cloth in processing machines, winding machines, etc.

Pieces of cloth are made by stitching or gluing with thread or wire, but there are many ways to detect these pieces during the processing process, such as stopping the process, raising the shearing blade, or separating the coordinating roll from the other side. It is necessary to perform an action. Conventionally, there have been various types of non-splicing detection devices, such as mechanical feeler type, micro switch type, photoelectric type, and electrostatic type. In order to keep the limit switch 18 constant, it was necessary to change the position of the limit switch 18 by sliding it on the mounting plate 16, as shown in FIG. Therefore, each time the thickness of the cloth changes, the operator is required to finely adjust the position of the limit switch 18. However, this work was prone to variations among workers and required a long adjustment time. As a result of intensive research, the present invention relates to a non-splicing detector which has been completed and has a simple structure and does not require adjustment of the feeler device each time the thickness of the fabric changes.

The structure of the present invention is as shown in FIG.
The filler 1, which is in contact with the opposite side of the fabric, is made to move in an arc around the filler fulcrum 5 with the filler tip 14 facing in the direction opposite to the direction of movement of the fabric, so that when the fabric passes, the filler tip 14 lifts up to create a feeler operating section. 13 actuates the limit switch 7, and the feeler portion 11 including the feeler fulcrum 5 and the limit switch 7 is supported by the fulcrum bar 10 and moves in an arc around the support bar fulcrum 12. be.

Since the present invention is constructed as described above, the feeler 1 with the feeler tip 14 facing in the direction opposite to the direction of movement of the fabric is brought into close contact with the surface of the fabric 3, and the feeler 1 is moved in accordance with the movement of the fabric 3. When the joint 4 moves and touches the filler tip 14, the filler 1 rotates about the filler fulcrum 5, and the feeler actuator 13 presses the switch part 8 of the limit switch 7 to sound an alarm, stop the machine, or start shearing. It is possible to perform operations such as raising the blade or separating the coding roll from the other side. In addition, the bed 2 is fixed on the opposite side of the feeler 1 with respect to the fabric 3, so that the fabric 3 can be prevented from separating from the feeler 1.

The feature of the present invention is that the feeler 1, the feeler fulcrum 5, the limit switch 7, etc. are fixed to the mounting plate 15, and the feeler portion 11 is moved in an arc by the support bar 10 about the support bar fulcrum 12. Also, the support bar 10 generates a clockwise moment in the figure due to the weight 9, thereby causing the feeler 1
It is better to keep it in contact with cloth 3, but
Instead of this weight, the weight of the feeler device or a spring may be used. During processing, when the thickness of the fabric changes, the feeler part 11 moves to the support bar fulcrum 1.
It moves in an arc around 2. If the radius of this circular motion is small, the feeler part 11 will not move in the direction perpendicular to the cloth 3 even if the thickness of the cloth changes.
Since the relative positions of the feeler operating section 13 and the limit switch 7 change, normal operation becomes difficult. In order to prevent this, it is desirable to make the distance L between the feeler fulcrum 5 and the support bar 12 as large as possible to bring the above-mentioned arcuate motion closer to linear motion, and the distance L is usually suitably 40 cm or more.

By using the anti-seam detector of this invention, even if the thickness of the fabric changes, it is possible to detect parts that protrude beyond the new thickness without requiring manual adjustment, and The work in the department has been reduced, making it possible to save labor. In addition, since the area of the filler can be made larger than that of conventional fillers, it is possible to eliminate malfunctions caused by irregularities, even when the pile material has an uneven pattern.

[Brief explanation of drawings]

FIG. 1 is a schematic side view showing a specific example of the present invention. FIG. 2 is a schematic side view of a conventional anti-joint detector. 1...Feeler, 2...Bed, 4...Reverse joint, 6...Weight adjustment bar, 11...Feeler section.

Claims (1)

[Scope of utility model registration request] The filler 1, which is in contact with the surface of the fabric 3, is made to move in an arc around the filler fulcrum 5 with the filler tip 14 facing in the direction opposite to the fabric progressing direction, and when the fabric joint passes, the filler tip 14 is lifted up. , the limit switch 7 is actuated by the feeler operating section 13, and the feeler section 11 including the feeler fulcrum 5 and the limit switch 7 is supported by the fulcrum bar 10 and moves in an arc around the support bar fulcrum 12. anti-joint detector.