WO2016110937A1

WO2016110937A1 - Space forming device

Info

Publication number: WO2016110937A1
Application number: PCT/JP2015/050060
Authority: WO
Inventors: 泰信亀田; 靖彦松田
Original assignee: Ykk株式会社
Priority date: 2015-01-05
Filing date: 2015-01-05
Publication date: 2016-07-14
Also published as: CN107105836B; TWI563938B; TW201625152A; CN107105836A

Abstract

Provided is a space forming device that can be made more compact and the manufacturing cost of which can be reduced. A cutting device (21) for cutting and removing a pair of fastener-element rows (EL) includes a pair of cutters (27) for cutting the pair of fastener-element rows (EL) to form a space (S). The pair of cutters (27) are provided so as to be slidable parallel to a pair of fastener tapes (T) and cut a joint part (Ed) of fastener elements (E) of the pair of fastener-element rows (EL) in a meshed state.

Description

Space forming device

The present invention relates to a space forming apparatus that forms a space by removing a fastener element row having a predetermined length from a continuous fastener chain.

As a conventional space forming apparatus, there is known a device that forms a space by cutting and removing a part of a fastener element row of a continuous fastener chain separated to the left and right by cutting members respectively arranged on the left and right (for example, Patent Document 1).

EP 0 259 587

By the way, in the space forming apparatus described in Patent Document 1, a separate device for separating the fastener element row in a state in which the continuous fastener chain is engaged is required separately, so that the space forming apparatus is enlarged and manufactured. The cost has increased.

The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a space forming apparatus capable of reducing the size of the space forming apparatus and reducing the manufacturing cost.

The above object of the present invention can be achieved by the following constitution.
(1) A pair of fastener element rows of a predetermined length is removed from a continuous fastener chain comprising a pair of fastener tapes and a pair of fastener element rows provided along the opposing tape side edges of the pair of fastener tapes. A space forming device for forming a space in a continuous fastener chain, wherein the fastener element row is a coiled fastener element row and has a plurality of fastener elements, and the fastener element is engaged with the meshing head. An upper leg portion extending outward in the width direction from the upper end portion of the head portion, a lower leg portion extending outward in the width direction from the lower end portion of the meshing head portion, and a lower leg portion of the fastener element adjacent to the outer end portion in the width direction of the upper leg portion. A cutting portion that cuts and removes the pair of fastener element rows. And a first positioning device and a second positioning device for positioning the continuous fastener chain, which are provided on the upstream side and the downstream side of the cutting device, respectively, and the cutting device has a pair of fastener element rows to form a space A pair of cutters are provided so that the pair of cutters are slidable in parallel with the pair of fastener tapes, and the fastener element rows of the pair of fastener element rows in a meshed state are cut. A featured space forming apparatus.
(2) The cutting device includes a knockout disposed below the continuous fastener chain, a pair of dies disposed across the knockout, a pair of movable pressure pads disposed across the pair of dies, and a continuous fastener chain An element press disposed above the element press, a pair of fixed pressure pads disposed between the element presses, and a pair of cutters disposed on the lower surfaces of the pair of fixed pressure pads, and the pair of movable pressure pads By moving upward, the pair of fastener tapes of the continuous fastener chain is sandwiched between the pair of movable pressure pads and the pair of cutters, and the pair of cutters moves inward in the width direction to form a pair of fastener element rows. Fastener elements are cut, knocked out and element pressed By upward movement, the cut fastener elements are pulled upwardly, the space forming device having the constitution to be removed from a continuous fastener chain (1).
(3) The space forming apparatus according to (2), wherein the movement of the pair of cutters is performed by a cam mechanism provided between the pair of cutters and the pair of movable pressure pads.
(4) The space forming apparatus according to (3), wherein the cam mechanism includes a cam groove formed on the lower surface of the pair of cutters and a cam formed on the upper surface of the pair of movable pressure pads. .
(5) A concave portion is formed on the lower surface of the pair of cutters to accommodate the convex portions formed on the upper surfaces of the pair of movable pressure pads, and the concave portions are formed when the pair of cutters are moved inward in the width direction. The space forming apparatus according to any one of (2) to (4), wherein the space forming apparatus is formed at a position where it enters.
(6) A downward inclined taper surface is formed on the upper surface of the pair of dies, and a tapered surface having the same inclination as the taper surface of the pair of dies is formed on the lower surface of the tip portion of the pair of cutters. (2) The space forming apparatus according to any one of (5).
(7) The cutting device includes an air injection device that blows off the fastener elements cut by the pair of cutters, and a chip discharge chute that collects and discharges the fastener elements blown off by the air injection device. The space forming apparatus according to any one of (1) to (6), wherein the space forming apparatus includes a plurality of injection holes for injecting water.

According to the present invention, the cutting device includes a pair of cutters for cutting a pair of fastener element rows to form a space, and the pair of cutters are provided slidable in parallel with the pair of fastener tapes, In order to cut | disconnect the connection part of the fastener element of a pair of fastener element row | line | column of the meshed state, the apparatus which isolate | separates the fastener element row | line of the meshed state like the conventional apparatus to right and left is unnecessary. Therefore, the space forming apparatus can be reduced in size, and the manufacturing cost can be reduced.

It is a front view explaining the continuous fastener chain processing apparatus by which one Embodiment of the space formation apparatus which concerns on this invention was employ | adopted. It is a front view explaining the space formation apparatus shown in FIG. It is a principal part enlarged front view of the space formation apparatus shown in FIG. It is a principal part enlarged front view explaining the state by which the 1st and 2nd positioning pin of the 1st positioning device shown in FIG. 3 was inserted between fastener elements. It is a principal part enlarged front view explaining the state by which the 1st and 2nd positioning pin of the 2nd positioning device shown in FIG. 4 was inserted between fastener elements. It is a surface view of the continuous fastener chain in the state of FIG. It is sectional drawing of the continuous fastener chain shown in FIG. FIG. 6 is a cross-sectional view taken along line AA in FIG. FIG. 9 is a cross-sectional view illustrating a state in which the knockout shown in FIG. 8 moves up and the element press moves down. FIG. 10 is a cross-sectional view illustrating a state in which the movable pressure pad shown in FIG. 9 moves upward and the left and right cutters move inward in the width direction. It is sectional drawing explaining the state which the knockout and element press shown in FIG. 10 move up. It is sectional drawing explaining the state from which the cut fastener element shown in FIG. 11 was removed from the continuous fastener chain. It is sectional drawing explaining the state by which the removed fastener element shown in FIG. 12 is blown off by the chip discharge chute | shoot by air injection. It is a surface view of the continuous fastener chain in a state where a space is formed.

Hereinafter, a continuous fastener chain processing apparatus in which an embodiment of a space forming apparatus according to the present invention is employed will be described in detail based on the drawings. In the following description, regarding the continuous fastener chain processing apparatus, the upper side is the upper side of the paper surface of FIG. 1, the lower side is the lower side of the paper surface of FIG. 1, and the left side is the paper surface of FIG. The near side and the right side are the back side with respect to the paper surface of FIG. 1, the upstream side is the left side with respect to the paper surface of FIG. 1, and the downstream side is the right side with respect to the paper surface of FIG. Moreover, the left-right direction of a continuous fastener chain processing apparatus is also called the width direction. Regarding the continuous fastener chain, the front side is the front side with respect to the paper surface of FIG. 6, the back side is the back side with respect to the paper surface of FIG. 6, the left side is the lower side with respect to the paper surface of FIG. The upper side with respect to the paper surface of FIG. 6 is the left side with respect to the paper surface of FIG. 6, and the downstream side is the right side with respect to the paper surface of FIG. Moreover, the left-right direction of a continuous fastener chain is also called the width direction.

First, as shown in FIG. 1, the continuous fastener chain processing device 10 is disposed on the most downstream side of the continuous fastener chain length measuring device 11 of the present invention and on the downstream side of the continuous fastener chain length measuring device 11. The space forming device 20 and a feed roll device 14 disposed on the downstream side of the space forming device 20 are provided.

Here, the continuous fastener chain C1 will be described. As shown in FIGS. 6 and 7, the continuous fastener chain C1 includes a pair of left and right fastener tapes T and a pair of left and right fastener element rows sewn along the opposing tape side edges of the left and right fastener tapes T. EL. Further, in the present embodiment, the continuous fastener chain C1 is supplied to the continuous fastener chain processing apparatus 10 so that the left and right fastener element rows EL are engaged and the left and right fastener element rows EL face upward.

The fastener element row EL is a coil-like fastener element row and has a plurality of fastener elements E. The fastener element E includes a meshing head Ea that meshes and separates with the other fastener element E, an upper leg Eb that extends outward in the width direction from the upper end of the meshing head Ea, and a width direction from the lower end of the meshing head Ea. A lower leg portion Ec that extends outward, and a connecting portion Ed that connects an outer end portion in the width direction of the upper leg portion Eb and an outer end portion in the width direction of the lower leg portion Ec of the adjacent fastener element E are provided. In FIG. 6 and FIG. 7, the symbol R is a core string that passes through the fastener element row EL, and the symbol Y is a sewing thread that sews the fastener element row EL to the fastener tape T.

As shown in FIG. 1, the continuous fastener chain length measuring device 11 includes a length measuring roller 11a disposed below the transferred continuous fastener chain C1, and a length measuring roller 11a sandwiching the transferred continuous fastener chain C1. A press roller 11b disposed to face each other. And the feed length of the continuous fastener chain C1 is measured by rotating the length measurement roller 11a with the transferred continuous fastener chain C1.

As shown in FIG. 1, the feed roll device 14 includes a feed roller 14a disposed below the continuous fastener chain C1, a press roller 14b disposed opposite the feed roller 14a with the continuous fastener chain C1 interposed therebetween, Is provided. And the continuous fastener chain C1 is transferred to the downstream or the upstream by the forward rotation or reverse rotation of the feed roller 14a.

The space forming device 20 removes the fastener element row EL having a predetermined length from the continuous fastener chain C1 to form a space S (see FIG. 14) in the continuous fastener chain C1, and as shown in FIG. A cutting device 21 that cuts and removes the fastener element row EL, first and

second positioning devices

31 and 32 that are provided adjacent to the upstream side and the downstream side of the cutting device 21, respectively, for positioning the continuous fastener chain C1, Is provided.

Here, the space S means that the fastener element E included in the fastener element row EL having a predetermined length is cut, and the cut fastener element E is extracted from the fastener tape T, the core string R, and the sewing thread Y, and then left and right. It is a gap formed between the fastener tapes T. Therefore, the core string R and the sewing thread Y are left as they are on the fastener tape T (see FIG. 14).

As shown in FIG. 8, the cutting device 21 is disposed with a knockout 22 disposed below the continuous fastener chain C <b> 1, a pair of left and right dies 23 disposed between the knockouts 22, and the left and right dies 23. A pair of left and right movable pressure pads 24, an element press 25 disposed above the continuous fastener chain C1, a pair of left and right fixed pressure pads 26 disposed across the element press 25, and a pair of left and right fixed pressure pads 26. A pair of left and right cutters 27 that are arranged on the lower surface and cut the left and right fastener element rows EL to form a space S, and a fastener element E that is arranged on the right side of the element press 25 and cut by the left and right cutters 27 are blown away. On the left side of the air injection device 28 and the element press 25 It is location comprises a chip discharge chute 29 for discharging recovered fastener element E that is blown off by the air injection device 28, the. The knockout 22, the movable pressure pad 24, and the element press 25 are configured to be movable up and down by a cylinder (not shown).

And the cutting device 21 of this embodiment is a side-cut type cutting device which cuts the connection part Ed of the fastener element E from the outside with the left and right cutters 27 as shown in FIG.

9 and 10, the left and right cutters 27 are provided on the lower surfaces of the left and right fixed pressure pads 26 so as to be slidable in parallel with the left and right fastener tapes T.

And, on the lower surface of the cutter 27, a cam groove 27a that is in contact with the cam 24a formed on the upper surface of the movable pressure pad 24 is formed. For this reason, when the movable pressure pad 24 moves upward and the cam 24a contacts the cam groove 27a, the slope of the cam groove 27a is pushed by the slope of the cam 24a, and the cutter 27 moves inward in the width direction. The connecting portion Ed of the fastener element E is cut. Therefore, the cam groove 27a of the cutter 27 and the cam 24a of the movable pressure pad 24 constitute a cam mechanism for moving the cutter 27. Further, a spring (not shown) is provided between the cutter 27 and the fixed pressure pad 26 to return the cutter 27 to the initial position outside in the width direction when the movable pressure pad 24 moves downward. A cam may be formed on the lower surface of the cutter 27 and a cam groove may be formed on the upper surface of the movable pressure pad 24.

Further, a concave portion 27 b that accommodates the convex portion 24 b formed on the upper surface of the movable pressure pad 24 is formed on the lower surface of the cutter 27. The concave portion 27b is formed at a position where the convex portion 24b enters when the cutter 27 is moved inward in the width direction. For this reason, when the movable pressure pad 24 moves upward and the convex portion 24b enters the concave portion 27b, the fastener tape T disposed between the cutter 27 and the movable pressure pad 24 becomes the convex portion 24b and the concave portion 27b. And the fastener tape T is pulled outward in the width direction. Thereby, the slack of the fastener tape T is removed, and the position and posture of the fastener element E are stabilized, so that the connecting portion Ed of the fastener element E can be accurately cut by the cutter 27.

Further, as shown in FIG. 8, a taper surface 23a having a downward slope is formed on the upper surface of the die 23, and a taper surface 27c having the same inclination as the taper surface 23a is formed on the lower surface of the tip of the cutter 27. Yes. Thereby, the fastener tape T arrange | positioned between the die | dye 23 and the cutter 27 is arrange | positioned so that it may extend diagonally downward along the taper surfaces 23a and 27c. Therefore, since the fastener tape T is disposed at a position away from the tip of the cutter 27, the fastener tape T can be reliably prevented from being damaged by the cutter 27.

As shown in FIG. 2, the first and

second positioning devices

31 and 32 include a pin holder 33 provided so as to be movable up and down, a cylinder 34 that drives the pin holder 33 in the vertical direction, and a vertical position of the pin holder 33. A proximity sensor 35 for detection.

The pin holder 33 includes a base portion 36 attached to the lower end portion of the rod 34 a of the cylinder 34, an elevating rod 37 extending downward from the lower surface of the base portion 36, and a holder body 38 attached to the lower end portion of the elevating rod 37. Prepare.

Further, as shown in FIGS. 3 and 6, on the lower surface of the holder main body 38, a first positioning pin 39a inserted between the fastener elements E of the left fastener element row EL, and a fastener of the right fastener element row EL. A second positioning pin 39b inserted between the elements E is provided.

As shown in FIG. 6, the first and second positioning pins 39a and 39b include the first fastener element E1 and the second fastener element E1 from the space formation planned range SR in which the space S of the left and right fastener element rows EL is formed. Each is inserted between the eye fastener element E2.

The proximity sensor 35 detects the vertical position of the pin holder 33 by measuring the distance from the bolt 36a attached to the lower surface of the base portion 36 of the pin holder 33, and includes first and second positioning pins 39a, It is checked whether or not 39b is inserted between the fastener elements E. The proximity sensor 35 uses an infrared proximity sensor having a light emitting element that emits infrared rays and a light receiving element that receives infrared rays. The proximity sensor 35 may use a photoelectric sensor, a rotary encoder, or the like that detects the proximity of the pin holder 33 that is a moving body or the presence or absence of the pin holder 33. As a method for detecting the vertical position of the pin holder 33, a contact-type limit switch that comes into contact with the pin holder 33 as the pin holder 33 moves up and down can be used.

Next, the operation of the space forming apparatus 20 will be described with reference to FIG. 3 to FIG. 6 and FIG. 8 to FIG.

First, as shown in FIGS. 3 and 6, the continuous fastener chain C <b> 1 is transferred to the downstream side by the feed roll device 14, and the space formation scheduled range SR of the left and right fastener element rows EL of the continuous fastener chain C <b> 1 is It stops between the left and right cutters 27 and is arranged at a predetermined position.

Next, as shown in FIGS. 4 and 6, when the pin holder 33 of the first positioning device 31 moves down, the first and second positioning pins 39 a and 39 b are planned to form spaces for the left and right fastener element rows EL. Inserted between the fastener elements E upstream of the SR. At this time, the first and second positioning pins 39a and 39b are respectively inserted between the first fastener element E1 and the second fastener element E2 from the space formation planned range SR of the left and right fastener element rows EL. The

Next, as shown in FIGS. 5 and 6, when the pin holder 33 of the second positioning device 32 moves down, the first and second positioning pins 39 a and 39 b are planned to form spaces for the left and right fastener element rows EL. Inserted between the fastener elements E downstream of the SR. At this time, the first and second positioning pins 39a and 39b are respectively inserted between the first fastener element E1 and the second fastener element E2 from the space formation planned range SR of the left and right fastener element rows EL. The

By the way, when the first and second positioning pins 39a and 39b of the first and

second positioning devices

31 and 32 are not inserted between the fastener elements E, the feed roll device 14 slightly moves the continuous fastener chain C1 to the downstream side. At the same time, the pin holder 33 is slightly moved up and down to perform a retry operation. In the present embodiment, the retry operation is set to be performed up to three times.

Next, as shown in FIGS. 8 and 9, the element press 25 of the cutting device 21 is moved down and the knockout 22 is moved up, so that the space between the element press 25 and the knockout 22 is within the space formation planned range SR. The fastener elements E of the left and right fastener element rows EL are clamped, and the position of the fastener elements E is fixed.

Next, as shown in FIG. 10, the left and right movable pressure pads 24 move upward, whereby the left and right fastener tapes T of the continuous fastener chain C1 are sandwiched between the left and right movable pressure pads 24 and the left and right cutters 27. At the same time, the left and right cutters 27 move inward in the width direction, and the connecting portions Ed of the fastener elements E of the left and right fastener element rows EL are cut.

Next, as shown in FIGS. 11 and 12, when the knockout 22 and the element press 25 move upward, the cut fastener element E is pulled upward and removed from the continuous fastener chain C1. Thereby, as shown in FIG. 14, the space S is formed in the continuous fastener chain C1.

Next, as shown in FIG. 13, the element press 25 further moves upward, and air is injected from the plurality of injection holes 28 a of the air injection device 28, so that the cut fastener element E is applied to the chip discharge chute 29. It is blown away and discharged to the outside by a chip discharge chute 29.

As described above, according to the space forming device 20 of the present embodiment, the left and right cutters 27 of the cutting device 21 are provided to be slidable in parallel to the left and right fastener tapes T, and the left and right cutters 27 are Since the connecting portions Ed of the fastener elements E of the left and right fastener element rows EL in the engaged state are cut, a device for separating the engaged fastener element rows EL in the right and left directions as in the conventional device is unnecessary. Therefore, the space forming device 20 can be reduced in size, and the manufacturing cost can be reduced.

Further, according to the space forming apparatus 20 of the present embodiment, the left and right movable pressure pads 24 move upward, whereby the left and right fastener tapes T of the continuous fastener chain C1 are moved to the left and right movable pressure pads 24 and the left and right cutters 27. The left and right cutters 27 are moved inward in the width direction, and the connecting portions Ed of the fastener elements E of the left and right fastener element rows EL are cut, so that only the left and right cutters 27 are moved. There is no need to prepare a driving device. Therefore, the space forming apparatus 20 can be further reduced in size, and the manufacturing cost can be further reduced.

Further, according to the space forming device 20 of the present embodiment, the movement of the left and right cutters 27 is caused by the cam grooves 27 a formed on the lower surfaces of the left and right cutters 27 and the cams 24 a formed on the upper surfaces of the left and right movable pressure pads 24. Therefore, the left and right cutters 27 can be moved with a simple structure. Therefore, the space forming apparatus 20 can be further reduced in size, and the manufacturing cost can be further reduced.

It should be noted that the present invention is not limited to those exemplified in the above embodiment, and can be appropriately changed without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 Continuous fastener chain processing apparatus 20 Space forming apparatus 21 Cutting apparatus 22 Knockout 23 Die 23a Tapered surface 24 Movable pressure pad 24a Cam (cam mechanism)
24b Convex part 25 Element press 26 Fixed pressure pad 27 Cutter 27a Cam groove (cam mechanism)
27b Recessed portion 27c Tapered surface 28 Air injection device 28a Injection hole 29 Chip discharge chute 31 First positioning device 32 Second positioning device C1 Continuous fastener chain T Fastener tape EL Fastener element row E Fastener element Ed Connecting portion S Space

Claims

From a continuous fastener chain (C1) comprising a pair of fastener tapes (T) and a pair of fastener element rows (EL) provided respectively along the opposing tape side edges of the pair of fastener tapes (T). A space forming device (20) for removing the pair of fastener element rows (EL) having a length to form a space (S) in the continuous fastener chain (C1),
The fastener element row (EL) is a coil-like fastener element row, and has a plurality of fastener elements (E),
The fastener element (E) includes an engagement head (Ea), an upper leg portion (Eb) extending outward in the width direction from an upper end portion of the engagement head (Ea), and a lower end portion of the engagement head (Ea). A lower leg portion (Ec) extending outward in the width direction from the upper end portion, and an outer end portion in the width direction of the lower leg portion (Ec) of the fastener element (E) adjacent to the outer end portion in the width direction of the upper leg portion (Eb). A connecting portion (Ed) to be connected,
A cutting device (21) that cuts and removes the pair of fastener element rows (EL), and a first device that is provided on each of the upstream side and the downstream side of the cutting device (21) and positions the continuous fastener chain (C1). A second positioning device (31, 32),
The cutting device (21) includes a pair of cutters (27) for cutting the pair of fastener element rows (EL) to form the space (S),
The pair of cutters (27) is provided so as to be slidable in parallel with the pair of fastener tapes (T), and the fastener elements (E) of the pair of fastener element rows (EL) in a meshed state. A space forming device (20), characterized in that the connecting portion (Ed) is cut.
The cutting device (21)
A knockout (22) disposed below the continuous fastener chain (C1);
A pair of dies (23) disposed across the knockout (22);
A pair of movable pressure pads (24) disposed across the pair of dies (23);
An element press (25) disposed above the continuous fastener chain (C1);
A pair of fixed pressure pads (26) disposed across the element press (25);
The pair of cutters (27) disposed on the lower surface of the pair of fixed pressure pads (26),
When the pair of movable pressure pads (24) are moved upward, the pair of fastener tapes (T) of the continuous fastener chain (C1) is moved to the pair of movable pressure pads (24) and the pair of cutters (27). And the pair of cutters (27) move inward in the width direction, and the fastener elements (E) of the pair of fastener element rows (EL) are cut,
When the knockout (22) and the element press (25) move upward, the cut fastener element (E) is pulled upward and removed from the continuous fastener chain (C1). The space forming apparatus (20) according to claim 1.
The pair of cutters (27) are moved by a cam mechanism (24a, 27a) provided between the pair of cutters (27) and the pair of movable pressure pads (24). Item 3. A space forming device (20) according to item 2.
The cam mechanism includes a cam groove (27a) formed on the lower surface of the pair of cutters (27) and a cam (24a) formed on the upper surface of the pair of movable pressure pads (24). 4. A space forming device (20) according to claim 3, characterized in that
A recess (27b) is formed on the lower surface of the pair of cutters (27) to accommodate the protrusion (24b) formed on the upper surface of the pair of movable pressure pads (24)
The concave portion (27b) is formed at a position where the convex portion (24b) enters when the pair of cutters (27) are moved inward in the width direction. The space forming apparatus (20) according to item 1.
A downwardly inclined taper surface (23a) is formed on the upper surface of the pair of dies (23),
The tapered surface (27c) having the same inclination as the tapered surface (23a) of the pair of dies (23) is formed on the lower surface of the tip portion of the pair of cutters (27). The space forming apparatus (20) according to any one of claims 5 to 6.
The cutting device (21)
An air injection device (28) for blowing off the fastener element (E) cut by the pair of cutters (27);
A chip discharge chute (29) for collecting and discharging the fastener element (E) blown off by the air injection device (28),
The space forming device (20) according to any one of claims 1 to 6, wherein the air injection device (28) has a plurality of injection holes (28a) for injecting air.