JPS5946902A - Hook manufacturing equipment for loop hook 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 The present invention relates to an apparatus for cutting loops of a loop hook fastener to form hooks using a cutting blade that vibrates ultrasonically.

This conventional Ume device has a configuration in which the loop is guided by both a cutting blade that vibrates ultrasonically and a fixed blade that does not vibrate ultrasonically, as disclosed in Japanese Utility Model Publication No. 57-12603. The device has many parts (,
It was expensive.

SUMMARY OF THE INVENTION An object of the present invention is to provide a hook manufacturing apparatus for loop hook fasteners that can guide and cut loops using only a cutting body.

The present invention will be explained below based on embodiments shown in the drawings.

1 to 5, 1 is a sheet body in which loops 2 of monofilament made of thermoplastic synthetic resin are woven or knitted onto a base fabric 3 in large numbers. They are arranged at a predetermined pitch and protrude. Each loop 2 has both legs in the horizontal direction (width direction of the base fabric).
In the illustrated example, each row (row extending in the width direction of the base fabric) is shifted by half the pitch P in the horizontal direction, and each root 2 of every other row forms each vertical row. There is.

The sheet body 1 is accurately conveyed to the left side in FIG. 1 without shifting the upper surface of the sheet guide 7 in the front, back, left, and right directions by the feed roller 5 and the idler roller 6, which have the clothing 4 on the outer periphery. The sheet is continuously transported downward from the force surface corner S8 of the tip 1141j of the sheet guide T.

10 is lty to the horn 11 of the ultrasonic emission generator (not shown).
The cutter 117r body with the part 12 attached has a plurality of cutting blades 13 on the tip) 11'@ side. Each cutting blade 13 is
The cut roots 2 are separated from each other by a space 15 having an escape window 14 at the back, and the loops 2
A pair of combs 17 form a V-shaped inter-wall portion 16 on the tip side.

Each comb 17 has an edge on the side of the space 15 parallel to the vertical direction of the roots 2, but an edge on the side of the space 16 is oblique with respect to the vertical direction of the loops 2, and the tip side is parallel to the vertical direction of the roots 2. It has a tapered sharp end, and the interval between the sharp ends is one half of the pitch P in the horizontal direction of the loop 2. Each comb 17 is formed with a sharp blade portion 18 extending toward the space 16 from its upper end.

As shown in FIGS. 1 and 3 and the fourth quotient, each comb 17 has a pitch of the roots 2 in the column direction of stones, and an outer and inner width of the loops 2 in the row direction of w, respectively. , the position where one side of the loop 20 comes into contact with the blade 18 and is cut is Q,
The distance from 19 Q to the sharp end M of the comb is
, e2, the distance from a line N passing through the sharp end 'f' ASM and parallel to the column of loop 2 to position Q is T3, l! From AN to comb 17 space 151F! ! When the distance to the edge ff1l of I is l, and the diameter of loop 2 is d, 1. 81n look.

To "T2n" L〈YW2 T2>L W, = W2+2d and 1- is suitable.

This cut body 10 passes through the sharp end Ffli M and loops 2
A straight line (i) extending in the vertical direction of the loops 2 is provided on the upper surface of the sheet body 1 in such a manner that it coincides with each column of the loops 2 and forms a window 14 of the space 15 between the cutting blades 13. Vibrated by sound waves.

In this device, when the sheet body 1 is moved by the feed row 25 and the idler roller 6, each loop 2 is connected to the cutting blade 13 near the curved corner 8 of the sheet guide 1 in each column as the sheet body 1 moves. After the window 14 is cut as shown in FIG. 7 by contacting the blade 18 with one side of the leg straddling the comb 17, the window 14 is moved to the lower part of the second grating together with the base fabric 3.

In this device, since the blade portions 18 of each cutting blade 13 face each other, the legs of each loop are cut on the same side within the rows and columns, but within every other row in both the rows and columns. It is divided into groups of loops, each loop of one group is left 111
11 legs are cut and each loop of the remaining group is attached to the right B
The 111th leg is cut off, and the left leg 11(ri) is cut off, and the right leg 91!l is cut off.

As described above, in the present invention, the cutting blades, which are made up of a pair of left and right combs that form a substantially V-shaped interferential part, are cut in the lateral direction with a window for the cut loop to escape. Since a plurality of cutting bodies are used, the cutting body has both the function of guiding the loop and the cutting function, and therefore the number of parts is small (low cost and maintenance is easy).

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an actual JJm example of the hook manufacturing apparatus according to the present invention, FIG. 2 is a plane view taken along line 1l-1i in FIG. 1, and FIG. 3 is a plan view showing an example of the tip of the comb. Figure, 4th
The figure is a sectional view taken along the line N-■ in Figure 3, and Figure 5 is the v-V line in Figure 1.
Line sectional view, Figure 6 is a line sectional view taken along VI-Vl in Figure 1, Figure 7
The figure shows an example of a cut knock. 1: sheet body, 2: loop, 3: base fabric, 4: clothing cloth, 5:
Feed roller, 6: idler roller, gamma guide,
8: Ladle corner, 10: Cutting body, 11: Horn, 12: Base, 13: Cutting blade, 14: Window, 15: Bamboo, 16: Space, 17: Comb, 18: Blade. Patent applicant Noita Kojo Senku Shiki Company 1st time 2Lη 1 沁3 ト°! 8) 4 N

Claims (1)

[Claims] A feeding means for feeding a sheet body formed by protruding loops of thermoplastic synthetic resin monofilament arranged vertically and horizontally on a base fabric in the vertical and horizontal direction of the loops, and for cutting one side of the fed loops. It is equipped with a cutting body having a cutting blade that vibrates ultrasonically and projects forward, and the cutting blade consists of a pair of left and right combs that form a roughly letter-shaped interwall part between them, and the cut loop escapes. 1. An apparatus for manufacturing loop hook fasteners, characterized in that a plurality of loop hook fasteners are arranged in rows in the horizontal direction with windows for the hooks in between.