JPS62194802A - Method and device for forming ears in hook-and-loop fasteners - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method and apparatus for forming the ears of a hook-and-loop fastener provided with loop-like or hook-like engagement protrusions by weaving or knitting.

2. Description of the Related Art In the past, the ears of a hook-and-loop fastener were formed by weaving or knitting on both sides of a narrow tape.
As shown in Publication No. 44252, a wide fabric for hook-and-loop fasteners is cut into a narrow tape A, and the engaging small protrusions on both sides of the underground tape A are cut off using a disc-shaped cutter 8. As shown in JP-A No. 50-14438, a wide tape for hook-and-loop fasteners C is coated with a tape of each desired width. Electric shearing scissors D are arranged to cut out the engaging small protrusions on the surface in a longitudinal direction in a line shape, and the center is cut into multiple pieces by the cutting cutter E to form multiple ears. It is known that a tape with a narrow surface fastener is manufactured (see FIG. 5).

Problems to be Solved by the Invention The conventional method for forming ears is to cut the engaging small protrusions on the surface of the machine using a disc-shaped cutter or electric shearing scissors to form the ears. If the tape surface is uneven, it will be difficult to cut from the base of the retaining protrusion, and the ears will not be formed flat, and the loop-shaped retaining protrusion may be separated by brushing. When removing the small engaging protrusion, it was difficult to remove it from its base because it was flexible. The cutting device is expensive, and has problems such as a complicated structure and difficulty in handling, especially when electric hair shearing scissors are used.

Therefore, the present invention solves the conventional problems and makes it possible to always cut the small engagement protrusion from the base even if it is a flexible loop-shaped engagement protrusion or even if the tape surface has unevenness. The object of the present invention is to provide a method and device for forming ears in a hook-and-loop fastener, which is inexpensive, has a simple structure, and is easy to handle.

Means for Solving the Problems As shown in FIG. 1, a method for forming ears in a hook-and-loop fastener according to the first invention involves forming loop-shaped or hook-shaped engagement small protrusions 12 on the entire surface by weaving or knitting. A wide hook-and-loop fabric 1 with a synthetic resin coating layer 13 for preventing the loop-shaped or hook-shaped retaining protrusions 12 from coming off on the back side is coated with the width of the desired narrow tape with ears. At each interval, the loop-shaped or hook-shaped engagement small protrusions 12 on the surface are cleaned and scraped in a line from the base in the longitudinal direction using the abrasive wheel 7 to form the flat portions 8 for forming the ears. By cutting and separating the flat part 8 multiple times to produce a narrow tape with ears, even if the wide fabric for hook-and-loop fasteners has unevenness, the loop-shaped or hook-shaped retaining protrusions can be attached to it. This is a method for forming ears on hook-and-loop fasteners that allows for the formation of clean ears by completely removing the roots.

The ear forming device for a hook-and-loop fastener according to the second invention is a device that implements the first invention, and is provided with small loop-like or hook-like engagement protrusions 12 on the entire surface of the hook-and-loop fastener. , a synthetic resin coating layer 1 for preventing the loop-shaped or hook-shaped engaging protrusion 12 from coming off on its back surface.
3 on the running path of the wide hook-and-loop fastener fabric.
The abrasive wheel 7 is brought into contact with the surface of the wide fabric 1 for hook-and-loop fasteners and scraped off the loop-shaped or hook-shaped engaging protrusions 12 from the base to form the flat portions 8 for forming ears. By installing additional rotating shafts 6 at intervals of the width of the desired narrow tape with ears, the device for forming ears of a hook-and-loop fastener is inexpensive and easy to construct and handle.

Embodiments An embodiment of the method and apparatus for forming ears in a hook-and-loop fastener according to the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of the main parts of an apparatus for carrying out the ear forming method of the present invention. 1 is a wide surface fabric (Usner fabric) having the width of a plurality of desired narrow tapes with selvedges, and is provided with loop-shaped engagement small protrusions formed by weaving or knitting its surface lines on the entire surface. It is a fabric for female-type hook-and-loop fasteners.It is a fabric for male-type hook-and-loop fasteners that has small hook-shaped (including mushroom-shaped) engaging protrusions formed by weaving or knitting on the entire surface. Since the fabric can be applied in the same way as the wide fabric for female hook-and-loop fasteners, the following description will be about the formation of ears in the wide fabric for female hook-and-loop fasteners provided with loop-shaped engaging protrusions.

A thin coating layer 13 of latex, synthetic resin, etc. is provided on the back side of the wide hook-and-loop fastener fabric 1 in order to prevent the loop-shaped engagement protrusions 12 from falling off.

As shown in FIG. 1, such a wide fabric 1 for hook-and-loop fasteners is wound into a roll around a delivery shaft 2 and placed in the device, and is taken up by a winding shaft 10 provided on the opposite side. During the transport, the loop-shaped engagement protrusions 12 on the surface of the fabric are scraped off by the selvage forming device using a grinding wheel 7 to form flat portions 8 for forming selvages.

The selvage forming device is provided with guide rollers 3.9 for guiding the wide hook-and-loop fastener fabric 1 in the front and back, and between these guide rollers 3.9, disc-shaped selvedges are formed at intervals of the width of the desired narrow selvage tape. A rotating shaft 6 to which several polishing wheels 7 are attached, and a guide plate 4 located below the polishing wheels 7 to support and guide the wide hook-and-loop fastener fabric 1 are provided. Then, a rotating abrasive stone 7 is brought into contact with the surface of a wide hook-and-loop fastener fabric 1 that is supported and guided on a guide plate, and a small loop-shaped retaining protrusion 1 is brought into contact with the surface.
2 from its base. The polishing wheels 7 attached to the rotating shaft 6 are configured so that the mounting interval and number of the polishing wheels 7 can be adjusted so that narrow tapes with ears of various sizes can be manufactured.

In addition, since the flat part 8 of the polishing wheel 7 is ground and cut away from its center by multiple cuts to form the ears of the two narrow tapes, the thickness of the flat part 8 is approximately equal to that of the final product. Part 2
It is twice as wide.

Therefore, when producing shaft tapes with different ear widths, they must be replaced with polishing wheels of different thicknesses.

Of the polishing wheels 7 attached to the rotating shaft 6, the polishing wheels at both ends are used to process both ends 8a of the wide fabric 1 for hook-and-loop fasteners, as shown in FIG. The thickness should be approximately the same as the width of the half ear.

A cooling pipe 5 is installed horizontally in parallel with the rotating shaft 6, and as shown in FIG. An outlet is provided to blow cooling air onto the contact area between the polishing whetstone 7 and the wide hook-and-loop fastener fabric 1 to prevent damage to the fabric due to polishing heat. Further, on the opposite side of the cooling pipe, as shown in FIG. 2, an opening of a dust suction duct 11 is arranged so as to surround a part of the polished surface of the polishing wheel 7.
It is configured to suck and remove dust from the small loop-shaped engagement protrusion 12 that has been scraped off by polishing.

FIG. 3 is a perspective view of a wide fabric for a hook-and-loop fastener manufactured by the selvage forming apparatus of the present invention, in which both ends and the middle are polished with a grindstone 7. This flat part 8
The tape is cut and separated from the center to produce a narrow surface fastener tape with tabs at both ends.

As described above, in the present invention, since the small loop-shaped engagement protrusions on the surface are ground by using a grinding wheel, even the brushed, flexible loop-shaped small engagement protrusions can be completely removed from their roots. Even if the wide fabric for hook-and-loop fasteners has irregularities, the rotating abrasive stone is brought into contact with the fabric to abrade the surface, so that flat portions 8 for forming ears can be formed neatly.

The device has a structure in which grinding wheels are attached to the rotating shaft at desired intervals, so the mechanism is simple and easy to handle, and by changing the mounting position of the grinding wheels, it can be used to create various sizes of narrow tape with ears. can be easily manufactured.

Effects of the Invention The present invention forms flat portions for forming ears by scraping off loop-shaped or hook-shaped engaging protrusions on the surface of a wide hook-and-loop fastener fabric at desired intervals using an abrasive stone. The center of this flat part is then cut and separated to produce the desired narrow selvedge tape, making it possible to easily and efficiently produce selvedge narrow tapes of various sizes. Even small protrusions and hard hook-like engagement protrusions can be cut cleanly from the base, and even if the wide hook-and-loop fabric has unevenness, it comes into contact with and scrapes away, so the selvage is always of a uniform thickness. can form a section.

In addition, the device for carrying out this ear forming method has a structure in which the abrasive grindstone is attached to the rotating shaft at predetermined intervals, so the mechanism is simple and easy to handle, and it has extremely excellent effects such as being inexpensive. are doing.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the main part of an apparatus for carrying out the ear forming method of the present invention, FIG. FIG. 4 is a plan view of a known ear forming device using a cutter, and FIG. It is an ear forming device using scissors, (Ino is its side view, (B)
is its plan view. 1... Wide fabric for hook and loop fasteners 5... Vibro for cooling... Rotating shaft 7... Grinding wheel 8... Flat part for forming ears 11... Dust suction duct 12... Loop shape Engaging small protrusion piece 13... coating layer

Claims (2)

[Claims] (1) A loop-shaped or hook-shaped small engagement protrusion (12) is provided on the entire surface by weaving or knitting, and a compound is formed on the back side to prevent the loop-shaped or hook-shaped engagement protrusion (12) from slipping out. The wide hook-and-loop fabric (1) provided with the resin coating layer (13) is coated with loop-shaped or hook-shaped attachments using an abrasive stone (7) at intervals of the width of the desired narrow tape with ears. A flat part (8) for forming an ear is formed by scraping the small fitting piece (12) along the longitudinal direction from its base in a line shape, and the central part of the flat part (8) is cut and separated. A method for forming ears in a hook-and-loop fastener, which comprises manufacturing a narrow tape with ears. (2) A loop-shaped or hook-shaped engagement protrusion (12) is provided on the entire surface by weaving or knitting, and a compound is provided on the back side to prevent the loop-shaped or hook-shaped engagement protrusion (12) from slipping out. A loop-shaped or hook-shaped engagement is carried out on the traveling path of the wide fabric for hook-and-loop fasteners (1) provided with a resin coating layer (13) by bringing it into contact with the surface of the wide fabric for hook-and-loop fasteners (1). The grinding wheel (which cuts off the small protrusion (12) from the root to form the flat part (8) for forming the ear part)
7) A device for forming ears in a hook-and-loop fastener, characterized in that rotating shafts (6) are installed at intervals of a desired width of the narrow tape with ears.