WO2015052796A1 - Element head-forming device for continuous fastener stringer-manufacturing machine - Google Patents

Element head-forming device for continuous fastener stringer-manufacturing machine Download PDF

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Publication number
WO2015052796A1
WO2015052796A1 PCT/JP2013/077475 JP2013077475W WO2015052796A1 WO 2015052796 A1 WO2015052796 A1 WO 2015052796A1 JP 2013077475 W JP2013077475 W JP 2013077475W WO 2015052796 A1 WO2015052796 A1 WO 2015052796A1
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WO
WIPO (PCT)
Prior art keywords
forming
sensor
punch
tooth
ram
Prior art date
Application number
PCT/JP2013/077475
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French (fr)
Japanese (ja)
Inventor
健一郎 井合
宮崎　邦夫
Original Assignee
Ykk株式会社
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Publication date
Application filed by Ykk株式会社 filed Critical Ykk株式会社
Priority to CN201380077403.XA priority Critical patent/CN105283094B/en
Priority to PCT/JP2013/077475 priority patent/WO2015052796A1/en
Priority to TW103134679A priority patent/TWI527638B/en
Publication of WO2015052796A1 publication Critical patent/WO2015052796A1/en

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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
    • A44B19/44—Securing metal interlocking members to ready-made stringer tapes
    • A44B19/46—Securing separate interlocking members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F45/00—Wire-working in the manufacture of other particular articles
    • B21F45/16—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes
    • B21F45/18—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes of slide fastener elements

Definitions

  • the present invention relates to a tooth head forming apparatus that presses a head of a tooth material in a tooth setting and planting portion of a fastener stringer continuous manufacturing machine to form a tooth.
  • Patent Document 1 As a fastener stringer continuous manufacturing machine, a fixed tooth molding planting unit, and a dental metal wire feeder for intermittently feeding a dental metal wire to a molded planting part, A device including a fastener tape supply device that intermittently supplies a fastener tape toward a molded planting portion by feeding out a fastener stringer is known.
  • a fastener tape supply device that intermittently supplies a fastener tape toward a molded planting portion by feeding out a fastener stringer is known.
  • metal tooth metal wire a long metal wire having a circular cross section and a cross section having a head and a pair of legs formed into a substantially Y shape through a plurality of rolling rolls is used.
  • a cutting device that cuts the metal wire for a dental tooth sent by a feeder for a metal tooth for a dental tooth into a predetermined thickness with a cutting punch and a cutting die to form a dental tooth material in the molded planting portion of the dental tooth,
  • a dentition head forming device that is press-molded with a forming punch and a forming die on the head of the dentition material, and the left and right leg portions of the dentition are swaged to the fastener tape with a crimping punch and attached. It has a dental attachment device.
  • the cutting punch is fixed to the machine frame, and the cutting die and the forming die are attached to a first ram provided on the machine frame so as to be movable in the front-rear direction across the front end position and the rear end position. Is attached to a second ram provided on the machine frame so as to be movable up and down.
  • the caulking punch is actuated by a cam provided in the third ram.
  • the first, second, and third rams are respectively moved by cams provided on the main shaft. Then, when the first ram moves rearward, the dental metal wire is cut to obtain a dental material.
  • the dentition material moves with the first ram.
  • the first ram is stopped at the rear end position, the second ram is lowered, the forming punch is moved downward, and the head of the tooth material is press-molded to form a tooth. Thereafter, the first ram moves forward together with the service tooth toward the service tooth attachment portion of the fastener tape, and at that time, the third ram is moved and the pair of legs of the service tooth are connected to the fastener tape by the caulking punch.
  • a fastener stringer is formed by caulking and attaching to the tooth attachment part.
  • the dentition head forming device presses the head of the dentition material set on the forming die into the forming die head forming recess with a forming punch and press-molds it to have the engaging tooth and the engaging recess. If the surface of the forming die head forming recess becomes rough due to long-term use, or if the cutting oil supply is insufficient, the forming tooth will not be May adhere to the forming die. Further, when attaching the service tooth to the fastener tape, the service tooth may remain on the forming die without being fixed to the fastener tape.
  • the forming punch presses the service tooth remaining on the forming die and the new service tooth material simultaneously. Become. At this time, the forming punch is mechanically lowered to the normal position as in the case of molding only a new service tooth material, and the machine continues to operate without stopping, so that the remaining service tooth and the new service tooth are As a result of the simultaneous press forming of the material, the forming die and the forming punch may be damaged.
  • Japanese Patent Application Laid-Open No. 2004-228688 discloses a tooth-tooth forming apparatus that solves this problem.
  • a presser punch pressure pad
  • the presser punch is provided on the forming punch so as to be movable up and down, and the presser punch is urged downward via a rod by a leaf spring provided on the second ram.
  • a pair of leg portions of the tooth material is pressed, and a sensing bar is provided at a position above the leaf spring.
  • the presser punch moves upward compared to the case where only the service tooth material is used. Since the leaf spring is greatly deformed upward, the leaf spring contacts the sensing bar and outputs a detection signal indicating that it is abnormal. The operation of the fastener stringer continuous manufacturing machine is stopped by the detection signal.
  • the sensing bar swings with inertia, so if the fastener stringer continuous manufacturing machine is operated at high speed, the sensing bar swings and misdetects. Is difficult.
  • Japanese Patent Application Laid-Open No. H10-228688 discloses a tooth head forming apparatus that can solve the above-described problem.
  • a sensor is provided at a position above the leaf spring, the vertical distance to the leaf spring is measured with this sensor, and if the measured value is different from the normal value, a signal indicating an abnormality is output. The operation of the fastener stringer continuous production machine is stopped. In this way, even if the fastener stringer continuous manufacturing machine operates at high speed, there is no false detection.
  • the present invention has been made in order to solve the above-described problems.
  • the object of the present invention is to detect an abnormality during press molding of a tooth material with a sensor and stop a continuous fastener stringer manufacturing machine.
  • Fastener stringer continuous manufacturing machine that can detect that there is no false tooth material in the forming die even when the manufacturing machine operates at high speed, and can use an inexpensive sensor with a short measuring distance. It is to make the dentistry head forming device.
  • the present invention is a fastener stringer continuous manufacturing method in which a head WH of a tooth material WA that has been cut into a predetermined thickness from a metal wire W for a tooth is press-molded into a tooth E having a meshing recess EP and a meshing projection EM.
  • a device for forming a tooth head of a machine A forming die 4 and a forming punch 5 for press-molding the head WH of the service tooth material WA, and a presser punch 6 for pressing the leg WL of the service tooth material WA against the forming die 4;
  • the forming punch 5 moves downward toward the forming die 4 to press the head WH of the tooth material WA with the forming die 4 and the forming punch 5, and the forming punch 5 moves upward after the press forming.
  • the presser punch 6 moves in the vertical direction together with the forming punch 5, and the presser punch 6 moves in the vertical direction with respect to the forming punch 5. Further, the presser punch 6 is biased to move downward by a spring member.
  • the spring member is a leaf spring 7, and the lower surface 7 b of the leaf spring 7 is opposed to the sensor 20. The vertical distance between the two can be detected by the sensor 20.
  • the apparatus for forming a tooth head of a fastener stringer continuous manufacturing machine of the present invention attaches a ram 11 to a ram attachment body 1b so as to be movable in the vertical direction, and attaches a forming punch 5 to the ram 11.
  • the leaf spring 7 is attached to the ram 11,
  • the sensor 20 can be attached to the ram attachment body 1 b so as to face the lower surface 7 b of the leaf spring 7.
  • the device for forming a tooth head of a continuous fastener stringer of the present invention comprises a rod 8 connected to the presser punch 6, By bringing the upper end of the rod 8 into contact with the lower surface 7 b of the leaf spring 7, the presser punch 6 can be moved and urged downward by the leaf spring 7 via the rod 8 and held at the lower position.
  • the spring member is a coil spring 30, and the rod 8 in contact with the coil spring 30 is connected to the press punch 6, so that the coil spring 30 holds the presser.
  • the punch 6 is moved and urged downward to be held at the lower position, A detection rod 35 is provided on the rod 8, and the vertical distance between the detection rod 35 and the sensor 20 can be detected by the sensor 20.
  • the apparatus for forming a tooth head of a fastener stringer continuous manufacturing machine of the present invention attaches a ram 11 to a ram attachment body 1b so as to be movable in the vertical direction, and attaches a forming punch 5 to the ram 11.
  • the coil spring 30 is attached to the upper surface of the ram 11,
  • the rod 8 connected to the presser punch 6 is inserted through the hole 32 of the ram 11 and is in contact with the coil spring 30;
  • the sensor 20 is attached to the ram attachment body 1b, A detection rod 35 provided on the rod 8 can be opposed to the sensor 20.
  • the sensor 20 can output a current having a value corresponding to the distance from the spring member.
  • the sensor 20 detects the vertical distance between the sensor 20 and the spring member that moves and urges the presser punch 6 downward and holds it in the lower position, and the detected vertical distance is It is possible to detect an abnormality in press molding of the tooth material by being different from the normal vertical distance, and to stop the fastener stringer continuous manufacturing machine. Since the sensor 20 is used, even if the manufacturing machine operates at high speed, the sensor 20 is not erroneously detected and the manufacturing machine can be speeded up. Since the sensor 20 is provided below the spring member, it can be detected that the forming die 4 is free of the tooth material. In addition, since the vertical distance between the spring member and the sensor 20 can be reduced, a sensor with a short measurement distance can be used.
  • FIG. 3 is a cross-sectional view taken along line AA in FIG. 2.
  • the dental metal wire W is intermittently fed to the fixed tooth molding planting portion 1 of the fastener stringer continuous manufacturing machine by a dental metal wire feeding device (not shown).
  • the fastener tape T is intermittently supplied by sending out the fastener stringer S with a fastener tape supply device (not shown).
  • the dental metal wire W has a prismatic head WH having a thickness a and a width b, and a thickness direction on both sides in the width direction at one end in the thickness direction of the head WH.
  • This is a long material having a substantially Y-shaped cross section that includes a pair of leg portions WL provided toward the head and has a groove WO between one end in the thickness direction of the head WH and the pair of leg portions WL.
  • the molded tooth implanting portion 1 is formed by cutting the metal wire W for a dental tooth into a predetermined thickness and, as shown in FIG. 6, a head WH and a pair of legs.
  • Cutting device 2 having cutting die 2 and cutting punch 3 as a substantially Y-shaped service tooth material WA having WL and a concave groove WO between head portion WH and a pair of leg portions WL, and the service tooth material
  • the head portion WH of the WA is press-molded, and a tooth portion having a forming die 4, a forming punch 5, and a presser punch 6 having a engagement tooth EP and an engagement protrusion EM.
  • FIG. 1 the molded tooth implanting portion 1 is formed by cutting the metal wire W for a dental tooth into a predetermined thickness and, as shown in FIG. 6, a head WH and a pair of legs.
  • Cutting device 2 having cutting die 2 and cutting punch 3 as a substantially Y-shaped service tooth material WA having WL and a concave groove WO between head portion WH and
  • the molding device and a pair of leg portions WL of the service teeth E are attached to the fastener tape T and a pair of crimp punches (not shown) that are attached to the service tooth mounting portion of the fastener tape T.
  • Chamfering a pair of leg portions WL of the tooth E And a coupling element mounting device having a show no pair of chamfering punches.
  • the molded tooth implant 1 has a lower ram mounting body 1a and an upper ram mounting body 1b, and the lower ram mounting body 1a has a first ram 10 extending back and forth across a front end position and a rear end position. It is attached to move freely in the direction.
  • the cutting die 2 and the forming die 4 are provided on the first ram 10, and the cutting die 2 and the forming die 4 move in the front-rear direction together with the first ram 10.
  • the cutting die 2 has a wire insertion hole 2 a through which the dental metal wire W is inserted, and the dental metal wire W moves in the front-rear direction together with the cutting die 2.
  • the cutting punch 3 is fixed to the ram mounting body 1b at the upper part of the molded tooth implant 1 and the lower surface of the cutting punch 3 is in contact with the upper surface of the cutting die 2.
  • a second ram 11 is provided on the upper ram mounting body 1b so as to be movable in the vertical direction across an upper position and a lower position. The second ram 11 is moved upward by a spring 12 and held at the upper position.
  • the forming ram 5 is provided in the second ram 11, and the forming punch 5 moves in the vertical direction together with the second ram 11.
  • the second ram 11 is provided with a presser punch 6 that can move up and down. The presser punch 6 can move up and down with respect to the forming punch 5.
  • a spring member such as a leaf spring 7 is attached to the upper portion of the second ram 11.
  • the presser punch 6 is moved downward and held by the leaf spring 7 via the rod 8.
  • the presser punch 6 is held at a lower position protruding downward from the forming punch 5.
  • the lower ram attachment body 1a and the upper ram attachment body 1b of the fixed tooth molding planting portion 1 are attached to a machine frame (not shown) of the fastener stringer continuous manufacturing machine.
  • a lever 13 that swings up and down by rotation of a main shaft (not shown) is disposed above the second ram 11, and a pin 14 provided on one end of the lever 13 is inserted into the second ram 11 from the hole 7 a of the leaf spring 7. It touches the top of As the main shaft rotates, one end of the lever 13 swings upward, so that the second ram 11 is moved upward by the spring 12 and held at the upper position. As the main shaft rotates, one end of the lever 13 swings downward, so that the second ram 11 contracts the spring 12 and moves to the lower position. That is, the lever 13 swings up and down by the rotation of the main shaft, so that the second ram 11 moves up and down.
  • the forming die 4 When the first ram 10 is at the rear end position shown in FIG. 4, the forming die 4 is positioned directly below the forming punch 5 and the presser punch 6. When the first ram 4 moves forward as indicated by the arrow a from the rear end position and the first ram 4 moves to the front end position, the wire insertion hole 2a of the cutting die 2 is positioned forward of the cutting punch 3. .
  • the forming punch 5 and the presser punch 6 are moved to the lower position together with the second ram 11.
  • the first ram 10 When the first ram 10 is in the front end position, the forming punch 5 and the presser punch 6 together with the second ram 11 are in the upper position.
  • the operation which attaches the service tooth E to the fastener tape T and makes it the fastener stringer S is demonstrated.
  • the dental metal wire W is fed by the feeder for the dental metal wire not shown and protrudes on the cutting die 2 by the thickness of the dental tooth.
  • the first ram 10 is moved rearward in the direction opposite to the arrow a, and the tooth metal wire W is cut by the cutting punch 3 and the cutting die 2 to obtain a tooth material WA.
  • This engagement tooth material WA moves toward the forming die 4 by the rearward movement of the first ram 10.
  • the fastener stringer S is sent out by a fastener tape supply device (not shown), and the fastener tape T is supplied along the tape guide 9 by a predetermined length.
  • the tooth material WA is moved onto the forming die 4, and the forming punch 5 and the presser punch 6 face each other directly above the forming die 4. Further, a pair of crimping punches (not shown) are opposed to the pair of leg portions WL of the tooth material WA.
  • the second ram 11 is moved downward.
  • the presser punch 6 first comes into contact with the pair of legs WL of the tooth material WA, and when the second ram 11 further moves downward, the forming punch 5 moves downward.
  • the head WH of the tooth material WA is press-molded as shown in FIG.
  • the presser punch 6 does not move downward because it is in contact with the pair of legs WL, so that the presser punch 6 is moved by the downward movement of the second ram 11. Moves relative to the second ram 11 and deforms the leaf spring 7 upward via the rod 8.
  • the first ram 10 is moved forward, and the pair of leg portions WL of the service tooth E sandwiched between a pair of caulking punches (not shown) is inserted into the service tooth mounting portion of the fastener tape T.
  • the pair of caulking punches are actuated to the machining position, and the pair of leg pieces WL of the service teeth E are caulked to the service tooth mounting portion of the fastener tape T as shown in FIG.
  • the fastener stringer S is attached to T.
  • a chamfering punch (not shown) is located above the pair of caulking punches, and chamfers the service teeth E of the fastener stringer S.
  • the dentition head forming apparatus detects the upward deformation amount of the leaf spring 7 when the forming punch 5 moves downward together with the second ram 11 to press-mold the WH portion WH of the dentition material WA.
  • a sensor 20 is provided. As shown in FIGS. 1 to 3, the sensor 20 is provided so as to face the lower surface 7b of the leaf spring 7, and detects the vertical distance between the sensor 20 and the leaf spring 7, and based on the detected value. The upward deformation amount of the leaf spring 7 can be detected.
  • the presser punch 6 does not move upward with respect to the forming punch 5 (second ram 11), so that the leaf spring 7 is horizontal.
  • the presser punch 6 moves upward by the thickness of one service tooth material WA, and the deformation amount of the leaf spring 7 is H 1.
  • the presser punch 6 moves upward by an amount corresponding to the thickness of the two service tooth materials WA, and the deformation amount of the leaf spring 7 is H2 (H2> H1).
  • the presser punch 6 moves upward by an amount corresponding to the thicknesses of the three engagement tooth materials WA, and the deformation amount of the leaf spring 7 is H3 (H3> H2).
  • the deformation amount of the leaf spring 7 is proportional to the upward movement distance of the presser punch 6, it is possible to know the upward movement distance of the presser punch 6 by detecting the deformation amount of the leaf spring 7.
  • the upward deformation amount of the leaf spring 7 can be known. As a result, it is possible to detect a state in which a plurality of the tooth material WA are placed on the forming die 4 in an overlapping manner, that is, an abnormality.
  • a bracket 21 is attached at a position apart from the second ram 11 at the upper part of the upper ram attachment body 1b, a sensor 20 is attached to the bracket 21, and the sensor 20 and the rod 8 are at the same position in the front-rear direction.
  • a protrusion 7c that faces the sensor 20 is formed on the left and right of the front end of the leaf spring 7, and the sensor 20 is positioned below the protrusion 7c.
  • the rod 8 of the leaf spring 7 is in contact, and the sensor 20 can be provided at the same position in the front-rear direction as the portion where the upward force is applied to the leaf spring 7, so that the upward deformation of the leaf spring 7 is achieved. The amount can be detected accurately.
  • the sensor 20 is a sensor that outputs a current proportional to the vertical distance between the sensor 20 and the leaf spring 7, for example, an inductive sensor.
  • the sensor is not limited to this, and any sensor that detects the distance between the sensor 20 and the leaf spring 7 may be used.
  • the distance in the vertical direction between the leaf spring 7 and the sensor 20 detected by the sensor 20 is the vertical distance in the normal direction in which one dentition material WA having the correct shape and thickness is placed on the forming die 4. If the distance is different from the distance, the continuous fastener stringer manufacturing machine is stopped as being abnormal during press molding so that the forming die 4 and the forming punch 5 are not damaged.
  • the detection distance (L1) of the sensor 20 is set as a normal distance when the presser punch 6 moves upward by the thickness of one service gear material WA, and the detection of the sensor 20 at the time of actual press molding is performed.
  • the rotation of the main shaft is stopped to stop the movement of the first ram 10 and the second ram 11, and the metal wire feeder for fasteners and the fastener tape supply device are provided.
  • the feeding is stopped, and the feeding of the dental metal wire W and the feeding of the fastener tape T are stopped.
  • the sensor 20 Since the sensor 20 is provided below the leaf spring 7, the vertical distance between the leaf spring 7 and the sensor 20 can be reduced regardless of the upward deformation amount of the leaf spring 7.
  • the sensor 20 can be provided at a position separated from the horizontal leaf spring 7 indicated by a solid line in FIG. 9 by a distance L0.
  • the sensor 20 when the sensor 20 is provided above the leaf spring 7, the sensor 20 is separated from the leaf spring 7 by a distance L3 (L3> L0) or more so as not to interfere even if the leaf spring 7 is largely deformed upward. Must be provided. Therefore, a sensor with a short measurement distance can be used as the sensor 20.
  • the distance L0 between the sensor 20 and the leaf spring 7 can be detected, so that the forming die 4 does not have the tooth material WA. Can be detected.
  • the spring member that holds the presser punch 6 in the lower position is the leaf spring 7, but the present invention is not limited to this.
  • the spring member is a coil spring 30, and the rod 8 is pushed down by the coil spring 30 to hold the presser punch 6 in the lower position.
  • a projecting piece 31 directed forward is provided at the upper end of the second ram 11, and a hole 32 is formed in the projecting piece 31.
  • a cylindrical spring receiver 33 is attached around the hole 32 on the upper surface of the projecting piece 31, and the coil spring 30 is provided on the spring receiver 33.
  • the rod 8 connected to the upper part of the presser punch 6 is inserted through the hole 32 of the projecting piece 31, and the upper end of the rod 8 is brought into contact with the coil spring 30 via the spring receiver 34.
  • a detection rod 35 is horizontally provided on the portion of the rod 8 that protrudes upward from the ram mounting body 1b toward the sensor 20, and the lower surface of the detection rod 35 is opposed to the sensor 20 with a gap.
  • the presser punch 6 can be held at the lower position by moving the rod 8 downward by the coil spring 30.
  • the vertical distance between the detection rod 35 and the coil spring 30 is always constant. Even when the rod 8 moves upward and the coil spring 30 is deformed, the detection rod 35 is detected. Since the distance in the vertical direction between the coil spring 30 and the coil spring 30 is the same, the amount of deformation of the coil spring 30 can be detected by detecting the distance between the detection rod 35 and the sensor 20 with the sensor 20.
  • the rotation of the main shaft is stopped and the movement of the first ram 10 and the second ram 11 is stopped.
  • the feeding device for the dental metal wire and the supply device for the fastener tape are stopped, and the feeding of the dental metal wire W and the fastener tape T are stopped.
  • the vertical distance between the detection rod 35 and the sensor 20 can be reduced regardless of the amount of deformation of the coil spring 30. Further, when the forming die 4 is free of the tooth material WA, that is, when the presser punch 6 is held at the lower position by the coil spring 30, the space between the sensor 20 and the detection rod 35 can be detected by the sensor 20. Therefore, it can be detected that the forming die 4 has no tooth material WA.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Slide Fasteners (AREA)

Abstract

Provided is an element head-forming device for a continuous fastener stringer-manufacturing machine, the device being capable of detecting malfunctions with a sensor when press-forming the element material and stopping the continuous fastener stringer-manufacturing machine and of using a sensor with a short measurement distance. The element-forming device is configured so that when press-forming the head (WH) of an element material (WA) using a forming die (4) and a forming punch (5), the leg section (WH) of the element material (WA) is pressed against the forming die (4) by bringing a pressing punch (6), which is biased downward by a plate spring (7), into contact with the leg section (WH) and deforming the plate spring (7) upward. The element-forming device is configured so that: a sensor (20) is provided below the plate spring (7); the sensor (20) detects the distance between the sensor and the plate spring (7) in the vertical direction; and the continuous fastener stringer-manufacturing machine is stopped when a malfunction is detected as a result of the detected distance in the vertical direction differing from the normal distance in the vertical direction. Because the sensor (20) is provided below the plate spring (7), the distance between the sensor (20) and the plate spring (7) is reduced and a sensor with a short measurement distance can be used.

Description

ファスナーストリンガ連続製造機の務歯頭部成形装置Teeth head forming device for fastener stringer continuous manufacturing machine
　本発明は、ファスナーストリンガ連続製造機の務歯の成形植付け部における務歯素材の頭部をプレス成形して務歯とする務歯頭部成形装置に関する。 DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tooth head forming apparatus that presses a head of a tooth material in a tooth setting and planting portion of a fastener stringer continuous manufacturing machine to form a tooth.
　従来、ファスナーストリンガ連続製造機としては特許文献１に開示されたように、務歯の成形植付け部と、務歯用金属線材を成形植付け部に間欠的に送る務歯用金属線材の送り装置と、ファスナーストリンガを送り出すことでファスナーテープを成形植付け部に向けて間欠的に供給するファスナーテープの供給装置などを備えたものが知られている。
　前述した務歯用金属線材は、円形断面を有する長尺の金属線材を複数の圧延ロールを通して頭部と一対の脚部を有する横断面を略Ｙ形状に成形したものが使用される。 Conventionally, as disclosed in Patent Document 1, as a fastener stringer continuous manufacturing machine, a fixed tooth molding planting unit, and a dental metal wire feeder for intermittently feeding a dental metal wire to a molded planting part, A device including a fastener tape supply device that intermittently supplies a fastener tape toward a molded planting portion by feeding out a fastener stringer is known.
As the above-described metal tooth metal wire, a long metal wire having a circular cross section and a cross section having a head and a pair of legs formed into a substantially Y shape through a plurality of rolling rolls is used.
　前記務歯の成形植付け部には、務歯用金属線材の送り装置で送られた務歯用金属線材をカッティングパンチとカッティングダイで所定の厚みに切断して務歯素材とする切断装置と、その務歯素材の頭部にフォーミングパンチとフォーミングダイでプレス成形して務歯とする務歯頭部成形装置と、その務歯の左右の脚部を加締パンチでファスナーテープに加締めて取り付ける務歯取付け装置を有している。 A cutting device that cuts the metal wire for a dental tooth sent by a feeder for a metal tooth for a dental tooth into a predetermined thickness with a cutting punch and a cutting die to form a dental tooth material in the molded planting portion of the dental tooth, A dentition head forming device that is press-molded with a forming punch and a forming die on the head of the dentition material, and the left and right leg portions of the dentition are swaged to the fastener tape with a crimping punch and attached. It has a dental attachment device.
　前記カッティングパンチは機枠に固設され、前記カッティングダイとフォーミングダイは、機枠に前端位置と後端位置とに亘って前後方向に移動自在に設けた第１ラムに取り付けてあり、フォーミングパンチは機枠に上下動自在に設けた第２ラムに取り付けてある。
　前記加締パンチは第３ラムに設けたカムで作動される。
　前記第１・第２・第３ラムは主軸に設けたカムによってそれぞれ移動される。
　そして、第１ラムが後方に移動する時に務歯用金属線材を切断して務歯素材とする。その務歯素材は第１ラムとともに移動する。
　前記第１ラムを後端位置で停止し、第２ラムを下降してフォーミングパンチを下方に移動して務歯素材の頭部をプレス成形して務歯とする。
　その後、第１ラムが務歯とともにファスナーテープの務歯取着部に向けて前方に移動し、その際に第３ラムを移動して加締パンチによって務歯の一対の脚部をファスナーテープの務歯取着部に加締めて取り付けることでファスナーストリンガとする。 The cutting punch is fixed to the machine frame, and the cutting die and the forming die are attached to a first ram provided on the machine frame so as to be movable in the front-rear direction across the front end position and the rear end position. Is attached to a second ram provided on the machine frame so as to be movable up and down.
The caulking punch is actuated by a cam provided in the third ram.
The first, second, and third rams are respectively moved by cams provided on the main shaft.
Then, when the first ram moves rearward, the dental metal wire is cut to obtain a dental material. The dentition material moves with the first ram.
The first ram is stopped at the rear end position, the second ram is lowered, the forming punch is moved downward, and the head of the tooth material is press-molded to form a tooth.
Thereafter, the first ram moves forward together with the service tooth toward the service tooth attachment portion of the fastener tape, and at that time, the third ram is moved and the pair of legs of the service tooth are connected to the fastener tape by the caulking punch. A fastener stringer is formed by caulking and attaching to the tooth attachment part.
　務歯頭部成形装置は、フォーミングダイにセットした務歯素材の頭部を、フォーミングパンチでフォーミングダイの頭部成形凹部に押し込んでプレス成形して噛合凸部と噛合凹部を有する務歯とするものであり、長期使用によりフォーミングダイの頭部成形凹部の表面が粗くなったり、切削油の供給不十分であったりすると、フォーミングパンチで務歯素材の頭部をプレス成形したときに務歯がフォーミングダイに付着することがある。
　さらに、務歯をファスナーテープに取り付ける際に、務歯がファスナーテープに固定されずにフォーミングダイに残ったままとなることがある。 The dentition head forming device presses the head of the dentition material set on the forming die into the forming die head forming recess with a forming punch and press-molds it to have the engaging tooth and the engaging recess. If the surface of the forming die head forming recess becomes rough due to long-term use, or if the cutting oil supply is insufficient, the forming tooth will not be May adhere to the forming die.
Further, when attaching the service tooth to the fastener tape, the service tooth may remain on the forming die without being fixed to the fastener tape.
　このような状態で、次の務歯素材がフォーミングダイに残存した務歯の上に乗せられると、フォーミングパンチは、フォーミングダイに残存した務歯と新たな務歯素材を同時にプレス成形することになる。
　このとき、フォーミングパンチは新たな務歯素材のみを成形する場合と同様に機械的に通常の位置まで下降し製造機が停止せずに稼動し続けることで、残存した務歯と新たな務歯素材が同時にプレス成形される結果、フォーミングダイ及びフォーミングパンチが損傷することがある。 In this state, when the next service tooth material is placed on the service tooth remaining on the forming die, the forming punch presses the service tooth remaining on the forming die and the new service tooth material simultaneously. Become.
At this time, the forming punch is mechanically lowered to the normal position as in the case of molding only a new service tooth material, and the machine continues to operate without stopping, so that the remaining service tooth and the new service tooth are As a result of the simultaneous press forming of the material, the forming die and the forming punch may be damaged.
　このことを解消する務歯頭部形成装置が特許文献２に開示されている。
　つまり、フォーミングパンチに押えパンチ（プレッシャパット）を上下移動自在に設け、その押えパンチを第２ラムに設けた板ばねでロッドを介して下方に付勢し、この押えパンチでフォーミングダイ上の務歯素材の一対の脚部を押さえるようにし、その板ばねよりも上方の位置に感知バーを設ける。
　そして、フォーミングダイ上に頭部をプレス成形した務歯と新たな務歯素材、つまり複数の務歯がある場合には、押えパンチが務歯素材のみの場合よりも上方に移動し、ロッドで板ばねが上向きに大きく変形するので、板ばねが感知バーに接触して異常であることの感知信号を出力する。その感知信号でファスナーストリンガ連続製造機の稼動を停止するようにする。 Japanese Patent Application Laid-Open No. 2004-228688 discloses a tooth-tooth forming apparatus that solves this problem.
In other words, a presser punch (pressure pad) is provided on the forming punch so as to be movable up and down, and the presser punch is urged downward via a rod by a leaf spring provided on the second ram. A pair of leg portions of the tooth material is pressed, and a sensing bar is provided at a position above the leaf spring.
And when there is a service tooth and a new service tooth material, that is, a plurality of service teeth, whose head is press-molded on the forming die, the presser punch moves upward compared to the case where only the service tooth material is used. Since the leaf spring is greatly deformed upward, the leaf spring contacts the sensing bar and outputs a detection signal indicating that it is abnormal. The operation of the fastener stringer continuous manufacturing machine is stopped by the detection signal.
　しかしながら、前述の務歯頭部成形装置では、感知バーが慣性で振れ動くので、ファスナーストリンガ連続製造機を高速で稼動すると感知バーが振れ動き、誤感知するから、ファスナーストリンガ連続製造機の高速化が難しい。 However, in the above-described dentition head forming device, the sensing bar swings with inertia, so if the fastener stringer continuous manufacturing machine is operated at high speed, the sensing bar swings and misdetects. Is difficult.
　前述のことを解消できるようにした務歯頭部成形装置が特許文献３に開示されている。
　つまり、板ばねよりも上方の位置にセンサを設け、このセンサで板ばねまでの上下方向の距離を計測し、計測した値が正常時の値と異なる場合に異常であるとの信号を出力し、ファスナーストリンガ連続製造機の稼動を停止する。
　このようにすれば、ファスナーストリンガ連続製造機が高速で稼動しても誤感知することがない。 Japanese Patent Application Laid-Open No. H10-228688 discloses a tooth head forming apparatus that can solve the above-described problem.
In other words, a sensor is provided at a position above the leaf spring, the vertical distance to the leaf spring is measured with this sensor, and if the measured value is different from the normal value, a signal indicating an abnormality is output. The operation of the fastener stringer continuous production machine is stopped.
In this way, even if the fastener stringer continuous manufacturing machine operates at high speed, there is no false detection.
特公昭５９－５１８１３号公報Japanese Examined Patent Publication No.59-51813 実開昭４７－６０５０８号公報Japanese Utility Model Publication No. 47-60508 中国特許公開ＣＮ１０２５５３９９９ＡChina Patent Publication CN102553999A
　フォーミングダイには３つ以上の務歯が重なり合うことがあり、その場合には、板ばねが上向きに大きく変形するので、特許文献３に開示したようにセンサが板ばねよりも上方に設けてある務歯頭部成形装置では、板ばねが上向きに大きく変形しても板ばねがセンサと干渉しないようにするため、板ばねとセンサとの上下方向の間隔を大きくしている。
　このために、計測距離の長いセンサを用いるので、コストが高い。
　また、フォーミングダイに務歯素材がないことを検出できない。 There are cases where three or more teeth are overlapped on the forming die, and in this case, the leaf spring is greatly deformed upward. Therefore, as disclosed in Patent Document 3, the sensor is provided above the leaf spring. In the dentition head forming device, the vertical distance between the leaf spring and the sensor is increased so that the leaf spring does not interfere with the sensor even if the leaf spring is greatly deformed upward.
For this reason, since a sensor with a long measurement distance is used, the cost is high.
Further, it cannot be detected that the forming die has no tooth material.
　本発明は、前述の課題を解決するためになされたもので、その目的は、務歯素材をプレス成形する際の異常をセンサで検出してファスナーストリンガ連続製造機を停止できると共に、ファスナーストリンガ連続製造機が高速で稼動しても誤検出することがなく、フォーミングダイに務歯素材がないことを検出でき、しかも計測距離の短い安価なセンサを用いることができるようにしたファスナーストリンガ連続製造機の務歯頭部成形装置とすることである。 The present invention has been made in order to solve the above-described problems. The object of the present invention is to detect an abnormality during press molding of a tooth material with a sensor and stop a continuous fastener stringer manufacturing machine. Fastener stringer continuous manufacturing machine that can detect that there is no false tooth material in the forming die even when the manufacturing machine operates at high speed, and can use an inexpensive sensor with a short measuring distance. It is to make the dentistry head forming device.
　本発明は、務歯用金属線材Ｗを所定の厚さに切断した務歯素材ＷＡの頭部ＷＨをプレス成形して噛合凹部ＥＰと噛合凸部ＥＭを有する務歯Ｅとするファスナーストリンガ連続製造機の務歯頭部成形装置であって、
　前記務歯素材ＷＡの頭部ＷＨをプレス成形するフォーミングダイ４及びフォーミングパンチ５と、前記務歯素材ＷＡの脚部ＷＬをフォーミングダイ４に押しつける押えパンチ６とを備え、
　前記フォーミングパンチ５はフォーミングダイ４に向けて下方に移動することで務歯素材ＷＡの頭部ＷＨをフォーミングダイ４とフォーミングパンチ５とでプレス成形し、そのフォーミングパンチ５はプレス成形後に上方に移動してフォーミングダイ４と離れ、
　前記押えパンチ６は、前記フォーミングパンチ５とともに上下方向に移動すると共に、この押えパンチ６はフォーミングパンチ５に対して上下方向に移動し、さらに、該押えパンチ６はばね部材で下方に移動付勢されて下方位置に保持し、
　前記フォーミングパンチ５が下方に移動して務歯素材ＷＡの頭部ＷＨをプレス成形する際に前記押えパンチ６は上方に移動してばね部材を変形して務歯素材ＷＡの脚部ＷＬをフォーミングダイ４に押しつけ、
　前記ばね部材よりも下方にセンサ２０を設け、このセンサ２０とばね部材との間の上下方向の距離を、当該センサ２０で検出するようにし、
　前記センサ２０の検出した距離が正常時の距離と異なる場合にファスナーストリンガ連続製造機を停止するようにしたことを特徴とするファスナーストリンガ連続製造機の務歯頭部成形装置である。 The present invention is a fastener stringer continuous manufacturing method in which a head WH of a tooth material WA that has been cut into a predetermined thickness from a metal wire W for a tooth is press-molded into a tooth E having a meshing recess EP and a meshing projection EM. A device for forming a tooth head of a machine,
A forming die 4 and a forming punch 5 for press-molding the head WH of the service tooth material WA, and a presser punch 6 for pressing the leg WL of the service tooth material WA against the forming die 4;
The forming punch 5 moves downward toward the forming die 4 to press the head WH of the tooth material WA with the forming die 4 and the forming punch 5, and the forming punch 5 moves upward after the press forming. And away from the forming die 4,
The presser punch 6 moves in the vertical direction together with the forming punch 5, and the presser punch 6 moves in the vertical direction with respect to the forming punch 5. Further, the presser punch 6 is biased to move downward by a spring member. Being held in the lower position,
When the forming punch 5 moves downward to press-mold the head WH of the tooth material WA, the press punch 6 moves upward to deform the spring member and form the leg WL of the tooth material WA. Press against die 4
A sensor 20 is provided below the spring member, and the vertical distance between the sensor 20 and the spring member is detected by the sensor 20.
The apparatus for forming a tooth head of a continuous fastener stringer machine, wherein the continuous fastener stringer machine is stopped when a distance detected by the sensor 20 is different from a normal distance.
　本発明のファスナトリンガ連続製造機の務歯頭部成形装置は、前記ばね部材を板ばね７とし、該板ばね７の下面７ｂをセンサ２０と対向することで、板バネ７とセンサ２０との間の上下方向の距離を、当該センサ２０で検出するようにできる。 In the fastener head forming device of the continuous fastener machine of the present invention, the spring member is a leaf spring 7, and the lower surface 7 b of the leaf spring 7 is opposed to the sensor 20. The vertical distance between the two can be detected by the sensor 20.
　本発明のファスナーストリンガ連続製造機の務歯頭部成形装置は、ラム取付体１ｂにラム１１を上下方向に移動自在に取り付け、該ラム１１にフォーミングパンチ５を取り付け、
　前記ラム１１に前記板ばね７を取り付け、
　前記ラム取付体１ｂにセンサ２０を、板ばね７の下面７ｂと対向して取り付けることができる。 The apparatus for forming a tooth head of a fastener stringer continuous manufacturing machine of the present invention attaches a ram 11 to a ram attachment body 1b so as to be movable in the vertical direction, and attaches a forming punch 5 to the ram 11.
The leaf spring 7 is attached to the ram 11,
The sensor 20 can be attached to the ram attachment body 1 b so as to face the lower surface 7 b of the leaf spring 7.
本発明のファスナーストリンガ連続製造機の務歯頭部成形装置は、前記押えパンチ６にロッド８を連結し、
　前記ロッド８の上端を板ばね７の下面７ｂに接することで、押えパンチ６を板ばね７でロッド８を介して下方に移動付勢して下方位置に保持することができる。 The device for forming a tooth head of a continuous fastener stringer of the present invention comprises a rod 8 connected to the presser punch 6,
By bringing the upper end of the rod 8 into contact with the lower surface 7 b of the leaf spring 7, the presser punch 6 can be moved and urged downward by the leaf spring 7 via the rod 8 and held at the lower position.
本発明のファスナーストリンガ連続製造機の務歯頭部成形装置は、前記ばね部材をコイルばね３０とし、該コイルばね３０に接したロッド８を押えパンチ６に連結することで、コイルばね３０により押えパンチ６を下方に移動付勢して下方位置に保持するようにし、
　前記ロッド８に検出杆３５を設け、該検出杆３５と前記センサ２０との間の上下方向の距離をセンサ２０で検出するようにできる。 In the device for forming a tooth head of a continuous fastener stringer of the present invention, the spring member is a coil spring 30, and the rod 8 in contact with the coil spring 30 is connected to the press punch 6, so that the coil spring 30 holds the presser. The punch 6 is moved and urged downward to be held at the lower position,
A detection rod 35 is provided on the rod 8, and the vertical distance between the detection rod 35 and the sensor 20 can be detected by the sensor 20.
本発明のファスナーストリンガ連続製造機の務歯頭部成形装置は、ラム取付体１ｂにラム１１を上下方向に移動自在に取り付け、該ラム１１にフォーミングパンチ５を取り付け、
　前記ラム１１の上面に前記コイルばね３０を取り付け、
　前記押えパンチ６に連結したロッド８をラム１１の孔３２を挿通してコイルばね３０に接し、
　前記ラム取付体１ｂに前記センサ２０を取り付け、
　前記ロッド８に設けた検出杆３５を、前記センサ２０と対向することができる。 The apparatus for forming a tooth head of a fastener stringer continuous manufacturing machine of the present invention attaches a ram 11 to a ram attachment body 1b so as to be movable in the vertical direction, and attaches a forming punch 5 to the ram 11.
The coil spring 30 is attached to the upper surface of the ram 11,
The rod 8 connected to the presser punch 6 is inserted through the hole 32 of the ram 11 and is in contact with the coil spring 30;
The sensor 20 is attached to the ram attachment body 1b,
A detection rod 35 provided on the rod 8 can be opposed to the sensor 20.
　本発明のファスナーストリンガ連続製造機の務歯頭部成形装置は、前記センサ２０は、ばね部材との距離に応じた値の電流を出力するものにできる。 In the dentition head forming device of the fastener stringer continuous manufacturing machine of the present invention, the sensor 20 can output a current having a value corresponding to the distance from the spring member.
　本発明によれば、押えパンチ６を下方に移動付勢して下方位置に保持するバネ部材とセンサ２０との間の上下方向の距離をセンサ２０が検出し、その検出した上下方向の距離が正常時の上下方向の距離と異なることで務歯素材をプレス成形する際の異常を検出し、ファスナーストリンガ連続製造機を停止することができる。
　センサ２０を用いているので、製造機が高速で稼動してもセンサ２０が誤検出することがなく、製造機を高速化できる。
　センサ２０はばね部材よりも下方に設けてあるので、フォーミングダイ４に務歯素材がないことを検出できる。
　しかも、ばね部材とセンサ２０との間の上下方向の間隔を小さくできるので、計測距離の短いセンサを用いることができる。 According to the present invention, the sensor 20 detects the vertical distance between the sensor 20 and the spring member that moves and urges the presser punch 6 downward and holds it in the lower position, and the detected vertical distance is It is possible to detect an abnormality in press molding of the tooth material by being different from the normal vertical distance, and to stop the fastener stringer continuous manufacturing machine.
Since the sensor 20 is used, even if the manufacturing machine operates at high speed, the sensor 20 is not erroneously detected and the manufacturing machine can be speeded up.
Since the sensor 20 is provided below the spring member, it can be detected that the forming die 4 is free of the tooth material.
In addition, since the vertical distance between the spring member and the sensor 20 can be reduced, a sensor with a short measurement distance can be used.
本発明の実施の形態を示す務歯頭部成形装置の側面図である。It is a side view of the dentition head shaping | molding apparatus which shows embodiment of this invention. 本発明の実施の形態を示す務歯頭部成形装置の正面図である。It is a front view of the dentition head shaping | molding apparatus which shows embodiment of this invention. 本発明の実施の形態を示す務歯頭部成形装置の平面図である。It is a top view of the dentition head shaping | molding apparatus which shows embodiment of this invention. 図２のＡ－Ａ断面図である。FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. 務歯用金属線材の斜視図である。It is a perspective view of the metal wire for dental dentition. 務歯素材の斜視図である。It is a perspective view of a dental material. 務歯の斜視図である。It is a perspective view of a tooth. ファスナーテープに務歯を取り付けた状態の断面図である。It is sectional drawing of the state which attached the engagement tooth to the fastener tape. 板ばねの上向きの変形量及び板ばねとセンサとの距離の説明図である。It is explanatory drawing of the upward deformation amount of a leaf | plate spring, and the distance of a leaf | plate spring and a sensor. 本発明の第２の実施の形態を示す務歯頭部成形装置の側面図である。It is a side view of the fixed tooth head shaping | molding apparatus which shows the 2nd Embodiment of this invention. 本発明の第２の実施の形態を示す務歯頭部成形装置の正面面図である。It is a front view of the fixed tooth head shaping | molding apparatus which shows the 2nd Embodiment of this invention.
　図１乃至図４に示すように、ファスナーストリンガ連続製造機の務歯の成形植付け部１には、図示しない務歯用金属線材の送り装置で務歯用金属線材Ｗが間欠的に送り込まれると共に、図示しないファスナーテープの供給装置でファスナーストリンガＳを送り出すことでファスナーテープＴが間欠的に供給される。
　務歯用金属線材Ｗは、図５に示すように厚さａと幅ｂを有した角柱状の頭部ＷＨと、頭部ＷＨの厚さ方向一端部における幅方向両側部に厚さ方向に向けて設けた一対の脚部ＷＬを備え、頭部ＷＨの厚さ方向一端部と一対の脚部ＷＬとの間に凹溝ＷＯを有する横断面を略Ｙ形状の長尺材である。 As shown in FIG. 1 to FIG. 4, the dental metal wire W is intermittently fed to the fixed tooth molding planting portion 1 of the fastener stringer continuous manufacturing machine by a dental metal wire feeding device (not shown). The fastener tape T is intermittently supplied by sending out the fastener stringer S with a fastener tape supply device (not shown).
As shown in FIG. 5, the dental metal wire W has a prismatic head WH having a thickness a and a width b, and a thickness direction on both sides in the width direction at one end in the thickness direction of the head WH. This is a long material having a substantially Y-shaped cross section that includes a pair of leg portions WL provided toward the head and has a groove WO between one end in the thickness direction of the head WH and the pair of leg portions WL.
　務歯の成形植付け部１は、図１乃至図４に示すように、前記務歯用金属線材Ｗを所定の厚さに切断して図６に示すように、頭部ＷＨと一対の脚部ＷＬを備え、頭部ＷＨと一対の脚部ＷＬとの間に凹溝ＷＯを有する略Ｙ形状の務歯素材ＷＡとするカッティングダイ２、カッティングパンチ３を有した切断装置と、その務歯素材ＷＡの頭部ＷＨをプレス成形して図７に示すように、噛合凹部ＥＰと噛合凸部ＥＭを有する務歯Ｅとするフォーミングダイ４、フォーミングパンチ５、押えパンチ６を有した務歯頭部成形装置と、その務歯Ｅの一対の脚部ＷＬを図８に示すように、ファスナーテープＴの務歯取付部に加締めて取り付ける図示しない一対の加締パンチと、このファスナーテープＴに取り付けた務歯Ｅの一対の脚部ＷＬを面取り加工する図示しない一対の面取りパンチを有した務歯取付け装置を備えている。 As shown in FIG. 1 to FIG. 4, the molded tooth implanting portion 1 is formed by cutting the metal wire W for a dental tooth into a predetermined thickness and, as shown in FIG. 6, a head WH and a pair of legs. Cutting device 2 having cutting die 2 and cutting punch 3 as a substantially Y-shaped service tooth material WA having WL and a concave groove WO between head portion WH and a pair of leg portions WL, and the service tooth material As shown in FIG. 7, the head portion WH of the WA is press-molded, and a tooth portion having a forming die 4, a forming punch 5, and a presser punch 6 having a engagement tooth EP and an engagement protrusion EM. As shown in FIG. 8, the molding device and a pair of leg portions WL of the service teeth E are attached to the fastener tape T and a pair of crimp punches (not shown) that are attached to the service tooth mounting portion of the fastener tape T. Chamfering a pair of leg portions WL of the tooth E And a coupling element mounting device having a show no pair of chamfering punches.
　務歯の成形植付け部１は、下部のラム取付体１ａと上部のラム取付体１ｂを有し、その下部のラム取付体１ａに第１ラム１０が前端位置と後端位置とに亘って前後方向に移動自在に取り付けてある。
　この第１ラム１０に前記カッティングダイ２とフォーミングダイ４が設けてあり、そのカッティングダイ２とフォーミングダイ４は第１ラム１０とともに前後方向に移動する。カッティングダイ２は務歯用金属線材Ｗが挿通する線材挿通孔２ａを有し、務歯用金属線材Ｗはカッティングダイ２とともに前後方向に移動する。 The molded tooth implant 1 has a lower ram mounting body 1a and an upper ram mounting body 1b, and the lower ram mounting body 1a has a first ram 10 extending back and forth across a front end position and a rear end position. It is attached to move freely in the direction.
The cutting die 2 and the forming die 4 are provided on the first ram 10, and the cutting die 2 and the forming die 4 move in the front-rear direction together with the first ram 10. The cutting die 2 has a wire insertion hole 2 a through which the dental metal wire W is inserted, and the dental metal wire W moves in the front-rear direction together with the cutting die 2.
　カッティングパンチ３は務歯の成形植付け部１の上部のラム取付体１ｂに固定され、そのカッティングパンチ３の下面が前記カッティングダイ２の上面に接している。
　上部のラム取付体１ｂには第２ラム１１が上方位置と下方位置とに亘って上下方向に移動自在に設けてある。この第２ラム１１はばね１２で上方に移動されて上方位置に保持される。
　この第２ラム１１に前記フォーミングパンチ５が設けてあり、そのフォーミングパンチ５は第２ラム１１とともに上下方向に移動する。
　第２ラム１１には押えパンチ６が上下動自在に設けてあり、押えパンチ６はフォーミングパンチ５に対して上下動自在である。
　第２ラム１１の上部にバネ部材、例えば板ばね７が取り付けてある。
　押えパンチ６の上部にロッド８を上向きに固定し、このロッド８の上部を板ばね７の下面に接することで、押えパンチ６は板ばね７でロッド８を介して下方に移動して保持し、この押えパンチ６はフォーミングパンチ５よりも下方に突出した下方位置に保持される。
　務歯の成形植付け部１の下部のラム取付体１ａ、上部のラム取付体１ｂはファスナーストリンガ連続製造機の図示しない機枠に取り付けてある。 The cutting punch 3 is fixed to the ram mounting body 1b at the upper part of the molded tooth implant 1 and the lower surface of the cutting punch 3 is in contact with the upper surface of the cutting die 2.
A second ram 11 is provided on the upper ram mounting body 1b so as to be movable in the vertical direction across an upper position and a lower position. The second ram 11 is moved upward by a spring 12 and held at the upper position.
The forming ram 5 is provided in the second ram 11, and the forming punch 5 moves in the vertical direction together with the second ram 11.
The second ram 11 is provided with a presser punch 6 that can move up and down. The presser punch 6 can move up and down with respect to the forming punch 5.
A spring member such as a leaf spring 7 is attached to the upper portion of the second ram 11.
By fixing the rod 8 upward to the upper part of the presser punch 6 and contacting the upper part of the rod 8 with the lower surface of the leaf spring 7, the presser punch 6 is moved downward and held by the leaf spring 7 via the rod 8. The presser punch 6 is held at a lower position protruding downward from the forming punch 5.
The lower ram attachment body 1a and the upper ram attachment body 1b of the fixed tooth molding planting portion 1 are attached to a machine frame (not shown) of the fastener stringer continuous manufacturing machine.
　図示しない主軸の回転により上下に揺動するレバー１３の一端部が第２ラム１１の上方に配置され、このレバー１３の一端部に設けたピン１４が板ばね７の穴７ａから第２ラム１１の上部に接している。
　主軸の回転によりレバー１３の一端部が上方に揺動することで、第２ラム１１は、ばね１２で上方に移動して上方位置に保持される。
　主軸の回転によりレバー１３の一端部が下方に揺動することで、第２ラム１１は、ばね１２を縮めて下方位置に移動する。
　つまり、主軸の回転によりレバー１３が上下に揺動することで、第２ラム１１が上下方向に移動する。 One end of a lever 13 that swings up and down by rotation of a main shaft (not shown) is disposed above the second ram 11, and a pin 14 provided on one end of the lever 13 is inserted into the second ram 11 from the hole 7 a of the leaf spring 7. It touches the top of
As the main shaft rotates, one end of the lever 13 swings upward, so that the second ram 11 is moved upward by the spring 12 and held at the upper position.
As the main shaft rotates, one end of the lever 13 swings downward, so that the second ram 11 contracts the spring 12 and moves to the lower position.
That is, the lever 13 swings up and down by the rotation of the main shaft, so that the second ram 11 moves up and down.
　第１ラム１０が図４に示す後端位置のときにフォーミングダイ４はフォーミングパンチ５、押えパンチ６の真下に位置する。
　第１ラム４が後端位置から矢印ａで示すように前方に移動し、第１ラム４が前端位置まで移動したときには、カッティングダイ２の線材挿通孔２ａがカッティングパンチ３よりも前方に位置する。
　第１ラム１０が後端位置のときに第２ラム１１とともにフォーミングパンチ５、押えパンチ６が下方位置に移動する。
　第１ラム１０が前端位置のときには第２ラム１１とともにフォーミングパンチ５、押えパンチ６は上方位置である。 When the first ram 10 is at the rear end position shown in FIG. 4, the forming die 4 is positioned directly below the forming punch 5 and the presser punch 6.
When the first ram 4 moves forward as indicated by the arrow a from the rear end position and the first ram 4 moves to the front end position, the wire insertion hole 2a of the cutting die 2 is positioned forward of the cutting punch 3. .
When the first ram 10 is at the rear end position, the forming punch 5 and the presser punch 6 are moved to the lower position together with the second ram 11.
When the first ram 10 is in the front end position, the forming punch 5 and the presser punch 6 together with the second ram 11 are in the upper position.
　次に、ファスナーテープＴに務歯Ｅを取り付けてファスナーストリンガＳとする動作を説明する。
　第１ラム１０が前端位置で停止している状態で図示しない務歯用金属線材の送り装置によって務歯用金属線材Ｗを送ってカッティングダイ２上に務歯の厚さ分だけ突出する。
　この後、第１ラム１０を矢印ａと反対方向である後方に移動してカッティングパンチ３とカッティングダイ２で務歯用金属線材Ｗを切断して務歯素材ＷＡとする。
　この務歯素材ＷＡは第１ラム１０の後方への移動でフォーミングダイ４に向けて移動する。
　この動作の際に、図示しないファスナーテープの供給装置でファスナーストリンガＳを送り出し、ファスナーテープＴをテープガイド９に沿って所定長さだけ供給する。 Next, the operation | movement which attaches the service tooth E to the fastener tape T and makes it the fastener stringer S is demonstrated.
In the state where the first ram 10 is stopped at the front end position, the dental metal wire W is fed by the feeder for the dental metal wire not shown and protrudes on the cutting die 2 by the thickness of the dental tooth.
Thereafter, the first ram 10 is moved rearward in the direction opposite to the arrow a, and the tooth metal wire W is cut by the cutting punch 3 and the cutting die 2 to obtain a tooth material WA.
This engagement tooth material WA moves toward the forming die 4 by the rearward movement of the first ram 10.
During this operation, the fastener stringer S is sent out by a fastener tape supply device (not shown), and the fastener tape T is supplied along the tape guide 9 by a predetermined length.
　前記第１ラム１０が後端位置まで移動して停止すると、前記務歯素材ＷＡがフォーミングダイ４上に移動し、フォーミングダイ４の真上にフォーミングパンチ５、押えパンチ６が相対向する。
　また、図示しない一対の加締パンチが務歯素材ＷＡの一対の脚部ＷＬと対向する。 When the first ram 10 moves to the rear end position and stops, the tooth material WA is moved onto the forming die 4, and the forming punch 5 and the presser punch 6 face each other directly above the forming die 4.
Further, a pair of crimping punches (not shown) are opposed to the pair of leg portions WL of the tooth material WA.
　前述したように、第１ラム１０が後端位置で停止している時に、第２ラム１１を下方に移動する。
　第２ラム１１が下方に移動することで、まず押えパンチ６が務歯素材ＷＡの一対の脚部ＷＬに接し、さらに第２ラム１１が下方に移動するとフォーミングパンチ５が下方に移動して務歯素材ＷＡの頭部ＷＨを図７に示すようにプレス成形して務歯Ｅとする。
　このフォーミングパンチ５による頭部ＷＨのプレス成形のときに、押えパンチ６は一対の脚部ＷＬに接しているために下方に移動しないので、第２ラム１１の下方への移動で、押えパンチ６は第２ラム１１に対して相対的に上方に移動し、ロッド８を介して板ばね７を上向きに変形する。 As described above, when the first ram 10 is stopped at the rear end position, the second ram 11 is moved downward.
When the second ram 11 moves downward, the presser punch 6 first comes into contact with the pair of legs WL of the tooth material WA, and when the second ram 11 further moves downward, the forming punch 5 moves downward. The head WH of the tooth material WA is press-molded as shown in FIG.
When the head WH is press-formed by the forming punch 5, the presser punch 6 does not move downward because it is in contact with the pair of legs WL, so that the presser punch 6 is moved by the downward movement of the second ram 11. Moves relative to the second ram 11 and deforms the leaf spring 7 upward via the rod 8.
　この動作のときに、図示しない一対の加締パンチを加工位置に向けて移動し、前記務歯Ｅの一対の脚部ＷＬを挟持している。 In this operation, a pair of caulking punches (not shown) are moved toward the machining position, and the pair of leg portions WL of the service teeth E are clamped.
　この後、第１ラム１０を前方に向けて移動し、図示しない一対の加締パンチで挟持されている務歯Ｅの一対の脚部ＷＬをファスナーテープＴの務歯取付部に入り込ませる。
　これとともに一対の加締パンチを加工位置に作動し、図８に示すように、務歯Ｅの一対の脚片ＷＬをファスナーテープＴの務歯取付部に加締めることで務歯ＥをファスナーテープＴに取り付けてファスナーストリンガＳとする。
　図示しない面取りパンチは、一対の加締パンチよりも上方に位置し、ファスナーストリンガＳの務歯Ｅを面取り加工する。 Thereafter, the first ram 10 is moved forward, and the pair of leg portions WL of the service tooth E sandwiched between a pair of caulking punches (not shown) is inserted into the service tooth mounting portion of the fastener tape T.
At the same time, the pair of caulking punches are actuated to the machining position, and the pair of leg pieces WL of the service teeth E are caulked to the service tooth mounting portion of the fastener tape T as shown in FIG. The fastener stringer S is attached to T.
A chamfering punch (not shown) is located above the pair of caulking punches, and chamfers the service teeth E of the fastener stringer S.
　本発明の務歯頭部成形装置は、第２ラム１１とともにフォーミングパンチ５が下方に移動して務歯素材ＷＡの頭部ＷＨをプレス成形するときの板ばね７の上向きの変形量を検出するセンサ２０を備えている。
　このセンサ２０は、図１乃至図３に示すように板ばね７の下面７ｂと対向して設けられ、このセンサ２０と板ばね７との間の上下方向の距離を検出し、その検出値によって板ばね７の上向きの変形量を検出することができる。 The dentition head forming apparatus according to the present invention detects the upward deformation amount of the leaf spring 7 when the forming punch 5 moves downward together with the second ram 11 to press-mold the WH portion WH of the dentition material WA. A sensor 20 is provided.
As shown in FIGS. 1 to 3, the sensor 20 is provided so as to face the lower surface 7b of the leaf spring 7, and detects the vertical distance between the sensor 20 and the leaf spring 7, and based on the detected value. The upward deformation amount of the leaf spring 7 can be detected.
　すなわち、フォーミングダイ４に務歯素材ＷＡがない状態で第２ラム１１を下方位置まで移動した場合の板ばね７は図９に実線で示すように水平であるとすれば、フォーミングダイ４に１つの務歯素材ＷＡが載置した状態で第２ラム１１を下方位置まで移動した場合には、板ばね７が図９に一点鎖線で示すようにＨ１だけ上向きに変形し、フォーミングダイ４に２つの務歯素材ＷＡが重なり合っている状態では図９に二点鎖線で示すようにＨ２だけ上向きに変形し、同様に３つの務歯素材ＷＡが重なり合っている状態では図９に三点鎖線で示すようにＨ３だけ上向きに変形する That is, if the leaf spring 7 when the second ram 11 is moved to the lower position in a state where the forming tooth 4 does not have the tooth material WA, it is assumed that the forming die 4 is horizontal as shown by the solid line in FIG. When the second ram 11 is moved to the lower position with the two tooth material WA placed thereon, the leaf spring 7 is deformed upward by H1 as indicated by a one-dot chain line in FIG. In the state in which the three tooth material WA are overlapped, as shown by a two-dot chain line in FIG. 9, it is deformed upward by H2. Deform upward by H3 as
　つまり、フォーミングダイ４に務歯素材ＷＡがない場合には押えパンチ６はフォーミングパンチ５（第２ラム１１）に対して上方に移動しないので、板ばね７は水平である。
　フォーミングダイ４に１つの務歯素材ＷＡが載置した状態では押えパンチ６は１つの務歯素材ＷＡの厚さ相当だけ上方に移動して板ばね７の変形量はＨ１で、２つの務歯素材ＷＡが載置した状態では押えパンチ６は２つの務歯素材ＷＡの厚さ相当だけ上方に移動して板ばね７の変形量はＨ２（Ｈ２＞Ｈ１）で、３つの務歯素材ＷＡが載置した状態では押えパンチ６は３つの務歯素材ＷＡの厚さ相当だけ上方に移動して板ばね７の変形量はＨ３（Ｈ３＞Ｈ２）である。 That is, when the working die material WA is not present on the forming die 4, the presser punch 6 does not move upward with respect to the forming punch 5 (second ram 11), so that the leaf spring 7 is horizontal.
In a state where one service tooth material WA is placed on the forming die 4, the presser punch 6 moves upward by the thickness of one service tooth material WA, and the deformation amount of the leaf spring 7 is H 1. In a state where the material WA is placed, the presser punch 6 moves upward by an amount corresponding to the thickness of the two service tooth materials WA, and the deformation amount of the leaf spring 7 is H2 (H2> H1). In the mounted state, the presser punch 6 moves upward by an amount corresponding to the thicknesses of the three engagement tooth materials WA, and the deformation amount of the leaf spring 7 is H3 (H3> H2).
　したがって、板ばね７の変形量は押えパンチ６の上方への移動距離を比例するから、板ばね７の変形量を検出することで、押えパンチ６の上方への移動距離を知ることができる。 Therefore, since the deformation amount of the leaf spring 7 is proportional to the upward movement distance of the presser punch 6, it is possible to know the upward movement distance of the presser punch 6 by detecting the deformation amount of the leaf spring 7.
　このようであるから、板ばね７とセンサ２０との間の上下方向の距離Ｌ０，Ｌ１，Ｌ２，Ｌ３を検出すれば、板ばね７の上向きの変形量を知ることができる。
　これによって、フォーミングダイ４に複数の務歯素材ＷＡが重なり合って載置されている状態、つまり異常を検出することができる。 Thus, if the distances L0, L1, L2, and L3 in the vertical direction between the leaf spring 7 and the sensor 20 are detected, the upward deformation amount of the leaf spring 7 can be known.
As a result, it is possible to detect a state in which a plurality of the tooth material WA are placed on the forming die 4 in an overlapping manner, that is, an abnormality.
　具体的には、上部のラム取付体１ｂの上部における第２ラム１１と離れた位置にブラケット２１を取り付け、このブラケット２１にセンサ２０を取り付け、このセンサ２０とロッド８が前後方向に同一位置であるようにする。
　板ばね７とセンサ２０が左右方向に離れるので、板ばね７の前端部の左右一方にセンサ２０に向かう突部７ｃを形成し、この突部７ｃの下方にセンサ２０が位置するようにする。 Specifically, a bracket 21 is attached at a position apart from the second ram 11 at the upper part of the upper ram attachment body 1b, a sensor 20 is attached to the bracket 21, and the sensor 20 and the rod 8 are at the same position in the front-rear direction. To be.
Since the leaf spring 7 and the sensor 20 are separated from each other in the left-right direction, a protrusion 7c that faces the sensor 20 is formed on the left and right of the front end of the leaf spring 7, and the sensor 20 is positioned below the protrusion 7c.
　このようにすることで、板ばね７のロッド８が接し、板バネ７に上向きの力が負荷する部分と前後方向に同一位置にセンサ２０を設けることができるので、板ばね７の上向きの変形量を正確に検出できる。 In this way, the rod 8 of the leaf spring 7 is in contact, and the sensor 20 can be provided at the same position in the front-rear direction as the portion where the upward force is applied to the leaf spring 7, so that the upward deformation of the leaf spring 7 is achieved. The amount can be detected accurately.
　前記センサ２０は、センサ２０と板ばね７との間の上下方向の距離に比例した電流を出力するセンサ、例えば誘導型センサである。これに限ることはなく、センサ２０と板ばね７との間の距離を検出するセンサであれば良い。 The sensor 20 is a sensor that outputs a current proportional to the vertical distance between the sensor 20 and the leaf spring 7, for example, an inductive sensor. The sensor is not limited to this, and any sensor that detects the distance between the sensor 20 and the leaf spring 7 may be used.
　前記センサ２０が検出した板ばね７とセンサ２０との間の上下方向の距離が、フォーミングダイ４に正しい形状、厚さの務歯素材ＷＡが１つ載置されている正常時の上下方向の距離と異なることで、プレス成形する際に異常であるとしてファスナーストリンガ連続製造機を停止し、フォーミングダイ４及びフォーミングパンチ５が損傷しないようにする。
　例えば、押えパンチ６が１つの務歯素材ＷＡの厚さ相当だけ上方に移動したときにセンサ２０の検出距離（Ｌ１）を正常時の距離として設定し、実際のプレス成形時のセンサ２０の検出距離が正常時の距離と異なる場合には、主軸の回転を停止して第１ラム１０、第２ラム１１の移動を停止すると共に、務歯用金属線材の送り装置及びファスナーテープの供給装置を停止して務歯用金属線材Ｗの送り及びファスナーテープＴの送りを停止する。 The distance in the vertical direction between the leaf spring 7 and the sensor 20 detected by the sensor 20 is the vertical distance in the normal direction in which one dentition material WA having the correct shape and thickness is placed on the forming die 4. If the distance is different from the distance, the continuous fastener stringer manufacturing machine is stopped as being abnormal during press molding so that the forming die 4 and the forming punch 5 are not damaged.
For example, the detection distance (L1) of the sensor 20 is set as a normal distance when the presser punch 6 moves upward by the thickness of one service gear material WA, and the detection of the sensor 20 at the time of actual press molding is performed. When the distance is different from the normal distance, the rotation of the main shaft is stopped to stop the movement of the first ram 10 and the second ram 11, and the metal wire feeder for fasteners and the fastener tape supply device are provided. The feeding is stopped, and the feeding of the dental metal wire W and the feeding of the fastener tape T are stopped.
　センサ２０は板ばね７よりも下方に設けてあるので、板ばね７とセンサ２０との上下方向の間隔を板ばね７の上向きの変形量に関係なく小さくすることができる。
　例えば、図９に実線で示す水平な板ばね７から距離Ｌ０だけ離れた位置にセンサ２０を設けることができる。
　これに対してセンサ２０を板ばね７よりも上方に設ける場合には、板ばね７が大きく上向きに変形しても干渉しないように板ばね７から距離Ｌ３（Ｌ３＞Ｌ０）以上離れてセンサ２０を設けなければならない。
　したがって、センサ２０として計測距離の短いセンサを用いることができる。 Since the sensor 20 is provided below the leaf spring 7, the vertical distance between the leaf spring 7 and the sensor 20 can be reduced regardless of the upward deformation amount of the leaf spring 7.
For example, the sensor 20 can be provided at a position separated from the horizontal leaf spring 7 indicated by a solid line in FIG. 9 by a distance L0.
On the other hand, when the sensor 20 is provided above the leaf spring 7, the sensor 20 is separated from the leaf spring 7 by a distance L3 (L3> L0) or more so as not to interfere even if the leaf spring 7 is largely deformed upward. Must be provided.
Therefore, a sensor with a short measurement distance can be used as the sensor 20.
　また、センサ２０を板ばね７の下方に設けたので、板バネ７が水平のときに、センサ２０と板ばね７との距離Ｌ０を検知できるので、フォーミングダイ４に務歯素材ＷＡがないことを検知できる。 Further, since the sensor 20 is provided below the leaf spring 7, when the leaf spring 7 is horizontal, the distance L0 between the sensor 20 and the leaf spring 7 can be detected, so that the forming die 4 does not have the tooth material WA. Can be detected.
　前述の実施の形態は押えパンチ６を下方位置に保持するばね部材を板バネ７としたが、これに限ることはない。
　例えば、図１０及び図１１に示すように、ばね部材をコイルばね３０とし、このコイルばね３０でロッド８を押し下げ、押えパンチ６を下方位置に保持する。 In the above-described embodiment, the spring member that holds the presser punch 6 in the lower position is the leaf spring 7, but the present invention is not limited to this.
For example, as shown in FIGS. 10 and 11, the spring member is a coil spring 30, and the rod 8 is pushed down by the coil spring 30 to hold the presser punch 6 in the lower position.
　具体的には、第２ラム１１の上端部に前方に向かう突片３１を設け、この突片３１に孔３２を形成する。突片３１の上面における孔３２の周囲に筒状のばね受け３３を取り付け、このばね受け３３にコイルばね３０を設ける。
　押えパンチ６の上部に連結したロッド８を突片３１の孔３２を挿通し、そのロッド８の上端部をばね受け３４を介してコイルばね３０に当接する。
　ロッド８の上部のラム取付体１ｂよりも上方に突出した部分に検出杆３５をセンサ２０に向けて水平に設け、この検出杆３５の下面をセンサ２０と間隔を置いて対向する。 Specifically, a projecting piece 31 directed forward is provided at the upper end of the second ram 11, and a hole 32 is formed in the projecting piece 31. A cylindrical spring receiver 33 is attached around the hole 32 on the upper surface of the projecting piece 31, and the coil spring 30 is provided on the spring receiver 33.
The rod 8 connected to the upper part of the presser punch 6 is inserted through the hole 32 of the projecting piece 31, and the upper end of the rod 8 is brought into contact with the coil spring 30 via the spring receiver 34.
A detection rod 35 is horizontally provided on the portion of the rod 8 that protrudes upward from the ram mounting body 1b toward the sensor 20, and the lower surface of the detection rod 35 is opposed to the sensor 20 with a gap.
　このようにすれば、コイルばね３０でロッド８を下方に移動することで、押えパンチ６を下方位置に保持できる。 In this way, the presser punch 6 can be held at the lower position by moving the rod 8 downward by the coil spring 30.
　検出杆３５はロッド８とともに上下方向に移動するので、検出杆３５とコイルばね３０との上下方向の距離は常に一定で、ロッド８が上方に移動してコイルばね３０を変形した場合でも検出杆３５とコイルバネ３０との上下方向の距離は同一であるから、検出杆３５とセンサ２０との間の距離をセンサ２０で検出することで、コイルばね３０の変形量を検出できる。 Since the detection rod 35 moves in the vertical direction together with the rod 8, the vertical distance between the detection rod 35 and the coil spring 30 is always constant. Even when the rod 8 moves upward and the coil spring 30 is deformed, the detection rod 35 is detected. Since the distance in the vertical direction between the coil spring 30 and the coil spring 30 is the same, the amount of deformation of the coil spring 30 can be detected by detecting the distance between the detection rod 35 and the sensor 20 with the sensor 20.
　したがって、第１の実施の形態と同様に、センサ２０の検出距離が正常時の距離と異なる場合に、主軸の回転を停止して第１ラム１０、第２ラム１１の移動を停止すると共に、務歯用金属線材の送り装置及びファスナーテープの供給装置を停止して務歯用金属線材Ｗの送り及びファスナーテープＴの送りを停止する。 Therefore, as in the first embodiment, when the detection distance of the sensor 20 is different from the normal distance, the rotation of the main shaft is stopped and the movement of the first ram 10 and the second ram 11 is stopped. The feeding device for the dental metal wire and the supply device for the fastener tape are stopped, and the feeding of the dental metal wire W and the fastener tape T are stopped.
　センサ２０はコイルばね３０よりも下方に設けてあるので、検出杆３５とセンサ２０との上下方向の間隔を、コイルばね３０の変形量に関係なく小さくすることができる。
　また、フォーミングダイ４に務歯素材ＷＡがないとき、つまり押えパンチ６をコイルばね３０で下方位置に保持しているときに、センサ２０と検出杆３５との間をセンサ２０で検出することができるので、フォーミングダイ４に務歯素材ＷＡがないことを検知できる。 Since the sensor 20 is provided below the coil spring 30, the vertical distance between the detection rod 35 and the sensor 20 can be reduced regardless of the amount of deformation of the coil spring 30.
Further, when the forming die 4 is free of the tooth material WA, that is, when the presser punch 6 is held at the lower position by the coil spring 30, the space between the sensor 20 and the detection rod 35 can be detected by the sensor 20. Therefore, it can be detected that the forming die 4 has no tooth material WA.
　１…務歯の成形植付け部、１ｂ…上部のラム取付体（ラム取付体）、２…カッティングダイ、３…カッティングパンチ、４…フォーミングダイ、５…フォーミングパンチ、６…押えパンチ、７…板ばね（ばね部材）、８…ロッド、２０…センサ、３０…コイルばね（ばね部材）、３２…孔、３５…検出杆、ＷＡ…務歯素材、ＷＨ…頭部、ＷＬ…脚部、Ｔ…ファスナーテープ、Ｓ…ファスナーストリンガ。 DESCRIPTION OF SYMBOLS 1 ... Molding planting part of service tooth, 1b ... Upper ram attachment body (ram attachment body), 2 ... Cutting die, 3 ... Cutting punch, 4 ... Forming die, 5 ... Forming punch, 6 ... Presser punch, 7 ... Plate Spring (spring member), 8 ... rod, 20 ... sensor, 30 ... coil spring (spring member), 32 ... hole, 35 ... detection rod, WA ... tooth material, WH ... head, WL ... leg, T ... Fastener tape, S ... Fastener stringer.

Claims (7)

  1. 　務歯用金属線材（Ｗ）を所定の厚さに切断した務歯素材（ＷＡ）の頭部（ＷＨ）をプレス成形して噛合凹部（ＥＰ）と噛合凸部（ＥＭ）を有する務歯（Ｅ）とするファスナーストリンガ連続製造機の務歯頭部成形装置であって、
    　前記務歯素材（ＷＡ）の頭部（ＷＨ）をプレス成形するフォーミングダイ（４）及びフォーミングパンチ（５）と、前記務歯素材（ＷＡ）の脚部（ＷＬ）をフォーミングダイ（４）に押しつける押えパンチ（６）とを備え、
    　前記フォーミングパンチ（５）はフォーミングダイ（４）に向けて下方に移動することで務歯素材（ＷＡ）の頭部（ＷＨ）をフォーミングダイ（４）とフォーミングパンチ（５）とでプレス成形し、そのフォーミングパンチ（５）はプレス成形後に上方に移動してフォーミングダイ（４）と離れ、
    　前記押えパンチ（６）は、前記フォーミングパンチ（５）とともに上下方向に移動すると共に、この押えパンチ（６）はフォーミングパンチ（５）に対して上下方向に移動し、さらに、該押えパンチ（６）はばね部材で下方に移動付勢されて下方位置に保持し、
    　前記フォーミングパンチ（５）が下方に移動して務歯素材（ＷＡ）の頭部（ＷＨ）をプレス成形する際に前記押えパンチ（６）は上方に移動してばね部材を変形して務歯素材（ＷＡ）の脚部（ＷＬ）をフォーミングダイ（４）に押しつけ、
    　前記ばね部材よりも下方にセンサ（２０）を設け、このセンサ（２０）とばね部材との間の上下方向の距離を、当該センサ（２０）で検出するようにし、
    　前記センサ（２０）の検出した距離が正常時の距離と異なる場合にファスナーストリンガ連続製造機を停止するようにしたことを特徴とするファスナーストリンガ連続製造機の務歯頭部成形装置。     A tooth having a meshing concave part (EP) and a meshing convex part (EM) by press-molding the head (WH) of the tooth material (WA) obtained by cutting the metal wire for the dental tooth (W) to a predetermined thickness (WH) E) a fastener stringer continuous manufacturing machine and a tooth head forming apparatus,
    The forming die (4) and the forming punch (5) for press-molding the head (WH) of the service tooth material (WA) and the leg (WL) of the service tooth material (WA) to the forming die (4) A presser punch (6) for pressing,
    The forming punch (5) moves downward toward the forming die (4) to press the head (WH) of the tooth material (WA) with the forming die (4) and the forming punch (5). The forming punch (5) moves upward after the press forming and is separated from the forming die (4).
    The press punch (6) moves in the vertical direction together with the forming punch (5), and the press punch (6) moves in the vertical direction with respect to the forming punch (5), and further, the press punch (6 ) Is urged to move downward by a spring member and held in the lower position,
    When the forming punch (5) moves downward and presses the head (WH) of the tooth material (WA), the presser punch (6) moves upward and deforms the spring member to deform the tooth. Press the leg (WL) of the material (WA) against the forming die (4),
    A sensor (20) is provided below the spring member, and the vertical distance between the sensor (20) and the spring member is detected by the sensor (20).
    An apparatus for forming a tooth head of a continuous fastener stringer machine, wherein the continuous fastener stringer machine is stopped when a distance detected by the sensor (20) is different from a normal distance.
  2. 　前記ばね部材を板ばね（７）とし、該板ばね（７）の下面（７ｂ）をセンサ（２０）と対向することで、板バネ（７）とセンサ（２０）との間の上下方向の距離を、当該センサ（２０）で検出するようにした請求項１記載のファスナーストリンガ連続製造機の務歯頭部成形装置。 The spring member is a leaf spring (7), and the lower surface (7b) of the leaf spring (7) is opposed to the sensor (20), so that the vertical direction between the leaf spring (7) and the sensor (20) is increased. The apparatus for forming a tooth head of a continuous fastener stringer manufacturing machine according to claim 1, wherein the distance is detected by the sensor (20).
  3. 　ラム取付体（１ｂ）にラム（１１）を上下方向に移動自在に取り付け、該ラム（１１）にフォーミングパンチ（５）を取り付け、
    　前記ラム（１１）に前記板ばね（７）を取り付け、
    　前記ラム取付体（１ｂ）にセンサ（２０）を、板ばね（７）の下面（７ｂ）と対向して取り付けた請求項２記載のファスナーストリンガ連続製造機の務歯頭部成形装置。     A ram (11) is attached to the ram attachment body (1b) so as to be movable in the vertical direction, and a forming punch (5) is attached to the ram (11).
    Attach the leaf spring (7) to the ram (11),
    The apparatus for forming a tooth head of a continuous fastener stringer manufacturing machine according to claim 2, wherein the sensor (20) is attached to the ram attachment body (1b) so as to face the lower surface (7b) of the leaf spring (7).
  4. 　前記押えパンチ（６）にロッド（８）を連結し、
    　前記ロッド（８）の上端を板ばね（７）の下面（７ｂ）に接することで、押えパンチ（６）を板ばね（７）でロッド（８）を介して下方に移動付勢して下方位置に保持した請求項２又は３記載のファスナーストリンガ連続製造機の務歯頭部成形装置。     The rod (8) is connected to the presser punch (6),
    The upper end of the rod (8) is in contact with the lower surface (7b) of the leaf spring (7), so that the presser punch (6) is urged downward by the leaf spring (7) via the rod (8). 4. The tooth head forming apparatus of a fastener stringer continuous manufacturing machine according to claim 2 or 3, held in position.
  5. 　前記ばね部材をコイルばね（３０）とし、該コイルばね（３０）に接したロッド（８）を押えパンチ（６）に連結することで、コイルばね（３０）により押えパンチ（６）を下方に移動付勢して下方位置に保持するようにし、
    　前記ロッド（８）に検出杆（３５）を設け、該検出杆（３５）と前記センサ（２０）との間の上下方向の距離をセンサ（２０）で検出するようにした請求項１記載のファスナーストリンガ連続製造機の務歯頭部成形装置。     The spring member is a coil spring (30), and the rod (8) in contact with the coil spring (30) is connected to the presser punch (6), so that the presser punch (6) is moved downward by the coil spring (30). Move and urge it to hold it in the lower position,
    The detection rod (35) is provided on the rod (8), and the vertical distance between the detection rod (35) and the sensor (20) is detected by the sensor (20). Teeth head forming device for fastener stringer continuous manufacturing machine.
  6. 　ラム取付体（１ｂ）にラム（１１）を上下方向に移動自在に取り付け、該ラム（１１）にフォーミングパンチ（５）を取り付け、
    　前記ラム（１１）の上面に前記コイルばね（３０）を取り付け、
    　前記押えパンチ（６）に連結したロッド（８）をラム（１１）の孔（３２）を挿通してコイルばね（３０）に接し、
    　前記ラム取付体（１ｂ）に前記センサ（２０）を取り付け、
    　前記ロッド（８）に設けた検出杆（３５）を、前記センサ（２０）と対向した請求項５記載のファスナーストリンガ連続製造機の務歯頭部成形装置。     A ram (11) is attached to the ram attachment body (1b) so as to be movable in the vertical direction, and a forming punch (5) is attached to the ram (11).
    Attach the coil spring (30) to the upper surface of the ram (11),
    The rod (8) connected to the presser punch (6) is inserted through the hole (32) of the ram (11) and brought into contact with the coil spring (30),
    The sensor (20) is attached to the ram attachment body (1b),
    The apparatus for forming a tooth head of a continuous fastener stringer manufacturing machine according to claim 5, wherein a detection rod (35) provided on the rod (8) faces the sensor (20).
  7. 　前記センサ（２０）は、ばね部材との距離に応じた値の電流を出力するものとした請求項１～６いずれか１項記載のファスナーストリンガ連続製造機の務歯頭部成形装置。 The device for forming a tooth head of a continuous fastener stringer manufacturing machine according to any one of claims 1 to 6, wherein the sensor (20) outputs a current having a value corresponding to a distance from the spring member.
PCT/JP2013/077475 2013-10-09 2013-10-09 Element head-forming device for continuous fastener stringer-manufacturing machine WO2015052796A1 (en)

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