JPH0228735Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a miscut detection device for detecting miscut loops in a male surface fastener in which hooks are formed by cutting loops.

Conventional Technology Conventionally, male surface fasteners are manufactured by cutting loops to form hooks, but mis-cut loops may occur where the loops are not cut due to spillage of the cutting blade of the cutting device or other causes. There is,
Traditionally, this has been detected with the naked eye,
No device had been devised to detect it.

Problems that the invention aims to solve As mentioned above, since miscut loops are detected visually, the work efficiency is poor and they may be overlooked, so the advent of a device that can mechanically detect miscut loops. was awaited.

Therefore, an object of the present invention is to provide an apparatus for detecting miscut loops that can be carried out mechanically and efficiently in place of the conventional manual inspection of miscut loops.

Means for Solving the Problems In order to solve the problems of the conventional art, the present invention provides a male surface fastener tape 13 as shown in FIG.
A detector 1 includes a rail 5 installed along a transfer path, and a large number of loop engagement detection elements 4 on the top surface of the rail 5.
and the stopper 6 is lightly engaged with the detector 1, and the male hook-and-loop fastener tape 13, which is activated by the movement of the detector 1, is transferred to an appropriate location, for example, on the downstream side, to the stopper. A stop switch 10 is provided to mechanically detect a miscut.

Operation By passing the male surface fastener tape, which is the object to be inspected, over the top surface of the detector 1 with the hook forming surface facing downward, the loop engagement detection element provided on the top surface of the detector as shown in FIG. 4 detects the miscut loop by combing the hook formed by cutting the loop, and detects the miscut loop 15.
When the loop 15 is present, the loop 15 engages with the loop engagement detecting element 4, and the male surface fastener tape pulls the detector 1, and the detector 1 is released from the stopper 6, which is lightly engaged, and the male surface fastener tape is released from the stopper 6. It moves on the rail 5 while being pulled by the hook-and-loop fastener tape, and operates a transfer stop switch provided at a suitable location, such as a stopper, on the downstream side, to stop the transfer of the male hook-and-loop fastener tape. Therefore, miscut loops in the male surface fastener tape are detected.

Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an enlarged view of the main parts of the miscut detection device of the present invention, and FIG. 2 is a side view of the entire device.

1 is a detector, and as shown in FIG.
is box-shaped, with a fitting hole 3 passing through the center, and is fitted onto a rail 5 installed along the transfer path of the male surface fastener tape 13 (hereinafter simply referred to as fastener tape), and is fitted onto the rail 5. is installed so that it can be moved freely. As shown in FIGS. 1 and 3, on the upper surface of the detector 1, a loop engagement detection element 4 is provided with a hook-shaped head bent in a direction opposite to the direction in which the fastener tape 13 is transported. tape 1
Many of them are installed in the width direction of 3. In addition, on the back surface of the detector 1, as shown in FIGS. 1 and 2, a head 7 of a stopper 6, which is provided in the frame on the supply side of the fastener tape 13 of the detection device so as to be retractable by a spring 8, is engaged. A recess 9 is provided.

The miscut detection device equipped with the detector 1 configured as described above is provided with a supply roller 11 and a delivery roller 12 at both ends, and is capable of cutting a fastener tape 13 that has undergone a loop cutting process in which a loop is cut to form a hook. , and is configured to be transferred through the upper part of the detector 1 with the hook forming surface facing downward.
A switch 10 is disposed on the downstream side of the transfer path, with which the switch 10 comes into contact when the detector 1 moves downstream to stop the transfer of the fastener tape 13. Note that the switch 10 can be installed at an appropriate location within the movement path of the detector 1 depending on the transport speed of the fastener tape 13, and when the head 7 of the stopper 6 is moved when the detector 1 is moved. Utilizing the downward pressure movement, the head 7 of the stopper 6 may actuate a switch to stop the transfer of the fastener tape 13.

Next, to explain the detection of miscuts by the miscut detection device of the present invention, the fastener tape 13 of the object to be inspected, on which hooks have been formed by cutting loops in the previous process, is passed through the device with the hook-forming side facing down. be done. Loop engagement detection element 4 provided on the detector 1 fitted on the rail 5
As shown in FIG. 1, the hook-shaped head is arranged at a position where it combs the hook 14 to be transferred, so that the loop engagement detection elements 4, 4, . . . Hooks 1 being transferred one after another
All 4 pieces will be combed uniformly. If there is a miscut loop 15 in the hook 14 that remains uncut due to the blade of the loop cutting blade being spilled or other reasons, the hook-shaped head of the loop engagement detection element 4 will be detected when the loop passes through. The miscut loop 15 engages with the portion, and as the fastener tape 13 is transferred, the detector 1 is pulled downstream. The detector 1 is locked by a stopper 6, but the stopper 6 has a weak urging force from a spring 8, and the lock cannot be released depending on the resistance force due to the hook being combed.
The spring 8 may come off depending on the traction force of the spring 5.
is set, the tip 7 of the stopper comes out of the recess 9 of the detector 1, and the detector 1 is pulled by the miscut loop 15 and moves downstream on the rail 5. Then, the detector 1 comes into contact with the transfer stop switch 10 provided downstream, and the supply roller 1
1. Stop the drive of the delivery roller 12 to stop the transport of the fastener tape 13. Depending on the state of the detected miscut loop 15, for example, if the miscut loop extends over a long range, the cutting blade in the previous process may be inspected and the cutting blade replaced, or
If there is only one loop, take countermeasures such as cutting it manually.

In addition, the detector of the miscut detection device of the present invention is
Since the loop engagement detection element 4 is provided corresponding to one fastener tape, when detecting a large number of fastener tapes at once, a large number of rails are installed on one detection device, and each It is sufficient to attach a detector, and miscuts can also be detected continuously by connecting with the previous process. Furthermore, since the miscut detection device of the present invention uses a loop engagement detection element with a hook-shaped head to detect hooks by combing them, it is also possible to shake off pieces of the hook left behind during the cutting process. It can also be used to clean the fastener tape.

Effects of the invention The present invention uses the configuration described above to mechanically detect miscut loops in male hook-and-loop fastener tape, and can efficiently perform the conventional inefficient detection work. In addition, since the loop engagement detecting element can shake off the pieces of the hook left behind in the cutting process, the hook forming surface can also be cleaned, which has very excellent effects.

[Brief explanation of the drawing]

FIG. 1 is an enlarged view of the essential parts of the miscut detection device of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a perspective view of the detector. 1...Detector, 4...Loop engagement detection element, 5
...Rail, 6...Stopper, 10...Transfer stop switch, 13...Male hook-and-loop fastener tape, 15...Miscut loop.

Claims (1)

[Scope of utility model registration request] A detector 1 having a large number of loop engagement detecting elements 4 on its upper surface is movably fitted onto a rail 5 constructed along a transfer path of a male surface fastener tape 13, and a stopper 6 is attached to the detector 1. A miscut detection device for a male type surface fastener, characterized in that a switch 10 for stopping the transfer of the male type surface fastener tape 13 is provided at a proper place, which is operated by a detector 1.