WO1999014417A1 - Appareil a remplacer les boites a canette - Google Patents

Appareil a remplacer les boites a canette Download PDF

Info

Publication number
WO1999014417A1
WO1999014417A1 PCT/JP1998/002256 JP9802256W WO9914417A1 WO 1999014417 A1 WO1999014417 A1 WO 1999014417A1 JP 9802256 W JP9802256 W JP 9802256W WO 9914417 A1 WO9914417 A1 WO 9914417A1
Authority
WO
WIPO (PCT)
Prior art keywords
indexing
cassette
bobbin case
rotating body
chuck
Prior art date
Application number
PCT/JP1998/002256
Other languages
English (en)
Japanese (ja)
Inventor
Haruhiko Kinoshita
Sei Kato
Original Assignee
Kinoshita Precision Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kinoshita Precision Industrial Co., Ltd. filed Critical Kinoshita Precision Industrial Co., Ltd.
Priority to AU74502/98A priority Critical patent/AU7450298A/en
Publication of WO1999014417A1 publication Critical patent/WO1999014417A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
    • D05B59/04—Devices for changing the bobbin

Definitions

  • the present invention relates to a bobbin case exchange device for exchanging a bobbin case mounted in a rotational force machine of a sewing machine.
  • Textile products such as clothes are sewn by sewing machines that use bobbins wound around bobbins and put the bobbins in bobbin cases.
  • a sewing machine that uses a pobin case has a very small bobbin winding amount compared to the upper thread, so the bobbin needs to be replaced frequently during sewing.
  • the bobbin case exchange device includes a transport unit for transporting the exchange bobbin case to the exchange position, a chuck for attaching and detaching the bobbin case, and a chuck moving unit for moving the chuck to the rotational force and the exchange position.
  • the space near the turning force at the bottom of the sewing table is very small.
  • the bobbin case exchange device needs to be miniaturized in order to arrange it in this narrow space.
  • each of the transfer means, the chuck, and the chuck moving means described above is required to operate accurately and to be downsized.
  • An object of the present invention is to realize an accurate operation of the transport means and downsizing, and to enable the practical use of the bobbin case exchanging device. Means were adopted.
  • the bobbin case changing device replaces the bobbin case mounted in the turning force machine of the sewing machine.
  • the transfer means for moving the replacement bobbin case to the replacement position includes:
  • a cassette rotating body that rotatably supports the replacement cassette and includes a plurality of index feed pins that are annular and arranged at equal intervals;
  • the cassette rotating body and the replacement cassette are moved by the indexing tool and over and press one of the indexing pins out of the plurality of indexing pins.
  • the indexing claw made of a panel material to be rotated in the direction, and the indexing feed pin are brought into contact with the indexing pin when the indexing actuator stops expanding and contracting, thereby restricting the cassette moving means from rotating in the one direction.
  • a moving member for indexing provided with a restricting portion.
  • the one-way clutch is the one-way clutch
  • a belt extending around the cassette rotating body, and a pull panel for pulling only one end of the belt.
  • the indexing claw moves over and presses one indexing feed pin.
  • the force applied to the cassette rotating body via the indexing feed pin when the indexing claw passes over the indexing feed pin is the rotating force in the other direction of the one-way clutch, and the cassette rotating body rotates. Absent.
  • the force applied to the cassette rotating body by this pressing is a one-way clutch rotating force in one direction, and the force set rotating body rotates a predetermined amount in one direction. Then, at the time of the expansion / contraction stop of the indexing actuator, the restricting portion contacts the indexing feed pin to restrict the rotation angle of the cassette rotating body.
  • the transport means can rotate the exchange cassette in one direction by a predetermined angle due to expansion and contraction of one indexing function, and can sequentially send the exchange bobbin case by a predetermined amount.
  • the transfer means can achieve accurate operation and downsizing, and can make the practical use of the pobin case exchange device arranged in a narrow space.
  • the one-way clutch is a simple one consisting of a belt wound around the rotating body of the cassette and a pull panel that pulls one end of the belt, so that the cost can be reduced and the pull spring is used. By loosening manually, the cassette rotating body can be rotated in both directions. Maintenance inspections and the like can be easily performed.
  • FIG. 1 is a bottom cross-sectional view of the bobbin case changing device in a state where the indexing tool has been extended.
  • FIG. 2 is a rear view of the bobbin case changing device, showing a state in which the indexing device is extended.
  • FIG. 3 is a rear view of the bobbin case changing device showing a state in which the indexing unit has shrunk.
  • FIG. 4 is a top view of the bobbin case exchange device showing a state in which the parallel movement factory has shrunk.
  • FIG. 5 is a top view of the bobbin case exchange device showing a state in which the translation machine is extended.
  • FIG. 6 is a front view of the bobbin case changing device showing a state in which the swinging actuator is contracted.
  • FIG. 7 is a front view of the bobbin case changing device showing a state in which the swinging actuator is retracted.
  • FIG. 1 is a bottom sectional view of the bobbin case changing device
  • FIGS. 2 and 3 are rear views of the bobbin case changing device
  • FIGS. 4 and 5 are diagrams of the bobbin case changing device
  • 6 and 7 are front views of the bobbin case changing device. Note that directions such as front and rear, left and right, and the like shown in this embodiment indicate directions viewed from the user side.
  • the bobbin case exchange device 1 shown in the present embodiment is a device in which a rotating force machine 2 is attached to a sewing machine facing the front, and a transport means 4 for transporting a bobbin case 3 for exchange to an exchange position, and a bobbin case 3 A chuck 5 to be attached and detached, and chuck moving means 6 for moving the chuck 5 to the rotational force mask 2 and the exchange position are provided.
  • the transport means 4 includes an exchange cassette 7 in which the four bobbin cases 3 are arranged at regular intervals in a ring, and a detachable and rotatable support for the exchange cassette 7 and an annular arrangement of 4 at equal intervals.
  • a cassette rotating body 9 provided with two indexing feed pins 8, a one-way clutch 10 for rotating the cassette rotating body 9 in only one direction, and an indexing device for expanding and contracting motion 1 1
  • the index moving member 11 is driven to expand and contract by the indexing mechanism 11 to drive the replacement cassette 7 via the cassette rotating body 9.
  • the indexing moving member 12 is moved over and pressed by one of the four indexing feed pins 8 to rotate the cassette rotating body 9 and the exchange cassette 7 in one direction.
  • the indexing claw 13 made of the panel material to be contacted and the indexing feed pin 8 contact the indexing pin 8 when the indexing tool 11 stops contracting to prevent the exchange cassette 7 from moving in one direction.
  • the one-way clutch 10 is composed of a resin belt 15 stretched around the cassette rotating body 9 and a pull panel 16 that pulls only one end of the belt 15.
  • the rotation direction of 9 is restricted only to the direction of arrow A in Fig. 2.
  • the extension spring 16 by compressing the extension spring 16 with a finger, the rotating direction of the cassette rotating body 9 can be set freely, and maintenance can be easily performed.
  • the exchange cassette 7 includes four equally spaced bobbin mounting pins 21 extending forward, and each bobbin mounting pin 21 has a bobbin case 3 equipped with a bobbin (not shown) wound with a bobbin thread. It is provided so that it can be attached.
  • the bobbin case 3 has a bobbin clamp (not shown) that fits into an annular recess provided in the bobbin mounting pin 21, and a bobbin clamp that is rotated with respect to the bobbin case 3 to slide.
  • a lock lever 22 for engaging and disengaging the bobbin clamp and the annular concave portion is provided. The bobbin case 3 on which the bobbin is mounted is locked to the bobbin mounting pin 21 by fitting the bobbin clamp into the annular concave portion.
  • the replacement cassette 7 is provided with a positioning recess 23 as shown in FIG.
  • the positioning recesses 23 regulate the movement of the case projections 3 a protruding outward from the bobbin case 3, and regulate the directions of all the bobbin cases 3 mounted on the replacement cassette 7. is there.
  • the exchange cassette 7 is mounted on the rotating shaft 24 of the cassette rotating body 9 and rotates integrally with the force setting rotating body 9.
  • the replacement cassette 7 is formed with a positioning recess (not shown), which is fitted to a positioning pin (not shown) provided on the rotating shaft 24. Then, the cassette rotating body 9 and the replacement cassette 7 are positioned.
  • the cassette rotating body 9 is fixed at a lower portion of the sewing table B of the sewing machine in a space facing the rotating force machine 2, and is rotatably supported by a supporting plate 25 whose plane faces in the front-rear direction. Things.
  • the support plate 25 has an L-shape, and the upper fixing portion 25 a is fixed to the lower surface of the sewing table B.
  • the fixed portion 25a is provided so as to be able to move in a small amount in the front-rear and left-right directions with respect to the sewing table B, and is provided so that the position of the support plate 25 with respect to the sewing table B can be finely adjusted. That is, by finely adjusting the position of the support plate 25, the position of the cassette rotating body 9 with respect to the rotational force machine 2 can be finely adjusted.
  • the cassette rotating body 9 penetrates through the support plate 25 and the support plate
  • a rotating shaft 24 that rotates with respect to 25 and an indexing panel 26 that is fixed to the rotating shaft 24 on the back side of the support plate 25 and rotates integrally with the rotating shaft 24 are provided.
  • indexing feed pins 8 are provided on the rear surface of the indexing board 26, four indexing feed pins 8 are provided. These four index feed pins 8 are provided at positions almost corresponding to the bobbin mounting pins 21 on the front side, and the index feed pins 8 screwed to the back of the index board 26 are formed into a ring shape. There are four at equal intervals.
  • the indexing claw 13 is made of a leaf spring material and has a substantially L shape as shown in FIG. 1, and is driven in a horizontal direction (left and right direction) by an indexing unit 11. When indexing tool 11 extends and indexing claw 13 moves to the right, indexing rotation of cassette rotating body 9 is prevented by one-way clutch 10 at this time. Claws 13 get over index feed pin 8.
  • the indexing moving member 12 that transmits the horizontal moving force of the indexing actuator 11 to the indexing claw 13 includes an indexing pin 8 when the indexing actuator 1 1 stops contracting.
  • a rod-shaped restricting part 14 that restricts the cassette rotating body 9 and the exchange cassette 7 from rotating counterclockwise. It expands and contracts by pressure, and is horizontally arranged on the back side of the support plate 25 as shown in FIG.
  • the indexing actuator 11 is fixed to a support plate 25, and when an air supply (positive pressure) is received from a compressor (not shown) therein, the indexing member 11 extends. Is moved to the right, and conversely, when the internal pressure is discharged (negative pressure), it shrinks and moves the indexing moving member 12 to the left.
  • the chuck 5 is moved by a chuck moving means 6 for performing a parallel movement in the front-rear direction and a rotational movement, and as shown in FIG. 4, a chuck claw 3 1 which causes a lock lever 22 of the bobbin case 3 Chuck the lock lever 22 caused by this chuck claw 3 1
  • the bobbin case fixing claw 3 2 that grips the bobbin case 3 that has been unlocked against the bobbin mounting pin 2 1 of the torque
  • the chuck claw 31 is driven to rotate in a direction to cause the lock lever 22 by the operation of the claw actuator 33 (an example of a claw opening / closing mechanism), and the claw restoring panel 34 is used. It returns to its original position.
  • the claw actuator 33 an example of a claw opening / closing mechanism
  • the chuck moving means 6 moves the chuck 5 to the rotational force 2 and the exchange position, and performs the parallel translation of the chuck 5 in the front-rear direction and the rotational movement.
  • the chuck moving means 6 includes a swing slider 41 that enables the chuck 5 to move back and forth and rotates with respect to the support plate 25, and a chuck supported by the swing slider 41. 1 and 2 for the parallel movement that drives the chuck 5 in the front-rear direction, and the swing for rotating the chuck 5 that is supported by the swing slider 4 1 It is composed of Kuchiyue 4 and 3.
  • the parallel moving actuator 42 extends in the front-to-back direction behind the support plate 25 and is fixed to the support plate 25, and drives the chuck 5 in the front-rear direction by supplying and discharging air.
  • the chuck 5 moves away from the rotational position of the rotational force device 2 or the exchange force set 7 when the parallel movement device 42 is extended, and conversely, the chuck 5 is retracted when the parallel movement device 42 is contracted. It approaches the exchange position of the rotational force 2 or the exchange cassette 7.
  • the swinging actuator 43 extends right and left behind the support plate 25 and is fixed to the support plate 25.
  • the chuck 5 is driven in the front-rear direction by supplying and discharging air. Note that the chuck 5 rotates to the setting 7 side (rotation to the left) when the swaying arm 4 extends, and conversely, the chuck 5 rotates when the swaying arm 43 shrinks. It rotates to the force 2 side (clockwise rotation).
  • the air supply / discharge switching control for the parallel movement unit 42 and the swinging unit 43 is controlled by the bobbin case 3 Air is discharged from the parallel moving actuator 4 and 2 to grip the chuck 5, and after the chuck 5 grips the bobbin case 3 in the torque generator 2, the gripped bobbin case 3 is released from the torque generator 2.
  • air is supplied to the parallel movement factory 42.
  • the parallel moving actuator 42 is ejected. After the chuck 5 releases the bobbin case 3, the chuck is released.
  • air is supplied to the parallel movement unit 42.
  • the air of the parallel movement actuator 42 is held in order to grip the bobbin case 3 at the exchange position with the chuck 5.
  • the chuck 5 grasps the bobbin case 3 of the replacement cassette 7 and then supplies air to the parallel movement actuator 42 to release the caught bobbin case 3 from the replacement cassette 7.
  • the air of the swinging actuator 43 is discharged.
  • the air for the parallel movement actuator 42 is discharged, and after the chuck 5 releases the bobbin case 3, the chuck 5 is rotated. Air is supplied to the parallel movement factory 42 to move it away from 2.
  • the bobbin case changing device 1 performs the following operation by operating an operation switch (not shown).
  • the indexing tool 11 extends and contracts, rotates the cassette rotating body 9 by 90 °, and places the replacement bobbin case 3 at the replacement position.
  • the parallel movement actuator 42 extends and moves the chuck 5 away from the replacement cassette 7.
  • the bobbin case changing device 1 of the present embodiment can automatically change the bobbin case 3 by the above operation.
  • the indexing claw 13 moves over and presses one indexing feed pin 8.
  • the force applied to the cassette rotating body 9 via the indexing pin 8 is the right-handed force regulated by the one-way clutch 10. Yes, the cassette rotating body 9 does not rotate.
  • the force applied to the cassette rotating body 9 by this pressing is a left-handed force that is not restricted by the one-way clutch 10, and as a result, the cassette rotating body 9 Turn 90 ° counterclockwise.
  • the transporting means 4 can rotate the exchange cassette 7 in one direction by a predetermined angle due to the expansion and contraction of one indexing tool 11 and can sequentially send the replacement bobbin case 3 by a predetermined amount.
  • the transfer means 4 can achieve accurate operation and downsizing, and makes the bobbin case exchange device 1 arranged in a narrow space practical.
  • the one-way clutch 10 is a simple one composed of a belt 15 that extends around the cassette rotating body 9 and a pull panel 16 that pulls one end of the belt 15. The cost can be reduced and the cassette rotating body 9 can be rotated in both directions by loosening the pull spring 16 manually, making maintenance and inspection easier.
  • each actuating unit Although an example in which the actuary is used as each actuating unit is shown, other actuating units such as a servomotor may be used.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

La présente invention concerne un appareil à remplacer (1) les boîtes à canette qui est équipé d'un organe de transport (4) permettant d'amener une boîte à canette (3) en une position où elle se bloque dans un mandrin. L'organe de transport (4) comporte une cassette de remplacement (7) sur laquelle sont fixées, à intervalles réguliers, des boîtes à canette (3). L'appareil comporte également un corps de cassette rotatif (9) qui sert de support à la cassette de remplacement (7), et sur lequel sont disposés, à intervalles réguliers, des doigts d'indexage d'avancement (8). L'appareil comporte aussi un embrayage à roue libre (10) permettant au corps de cassette rotatif (9) de tourner dans un seul sens. L'appareil comporte en outre un actionneur d'indexage (11) disposé à l'horizontale et mobile en jeu télescopique. L'appareil comporte enfin un élément d'indexage mobile (12) entraîné par le jeu télescopique de cet actionneur d'indexage (11). Cet élément d'indexage mobile (12) est pourvu d'un cliquet d'indexage (13) constitué d'un ressort à lame, et d'une unité de régulation (14) qui vient en contact avec le doigt d'indexage d'avancement (8) lors de l'arrêt. Lorsque l'élément d'indexage mobile (12) se déploie ou se rentre, le cliquet d'indexage (13) pousse le doigt d'indexage d'avancement (8) de façon à entraîner en rotation le corps de cassette rotatif (9) et la cassette de remplacement (7) d'un angle de rotation défini.
PCT/JP1998/002256 1997-09-18 1998-05-21 Appareil a remplacer les boites a canette WO1999014417A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU74502/98A AU7450298A (en) 1997-09-18 1998-05-21 Bobbin case replacing apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9/253857 1997-09-18
JP25385797 1997-09-18

Publications (1)

Publication Number Publication Date
WO1999014417A1 true WO1999014417A1 (fr) 1999-03-25

Family

ID=17257107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/002256 WO1999014417A1 (fr) 1997-09-18 1998-05-21 Appareil a remplacer les boites a canette

Country Status (2)

Country Link
AU (1) AU7450298A (fr)
WO (1) WO1999014417A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108179557A (zh) * 2017-12-29 2018-06-19 东莞市顺程电脑针车有限公司 自动换梭壳装置
DE102018009200A1 (de) 2018-06-01 2019-12-05 Kinoshita Precision Industrial Co., Ltd. Unterfadenwechselvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07308478A (ja) * 1994-03-22 1995-11-28 Yoshihiro Iekata ミシンのボビンケースの自動取出装置及び交換装置
JPH08196766A (ja) * 1995-01-31 1996-08-06 Kinoshita Seimitsu Kogyo Kk 下糸自動交換装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07308478A (ja) * 1994-03-22 1995-11-28 Yoshihiro Iekata ミシンのボビンケースの自動取出装置及び交換装置
JPH08196766A (ja) * 1995-01-31 1996-08-06 Kinoshita Seimitsu Kogyo Kk 下糸自動交換装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108179557A (zh) * 2017-12-29 2018-06-19 东莞市顺程电脑针车有限公司 自动换梭壳装置
DE102018009200A1 (de) 2018-06-01 2019-12-05 Kinoshita Precision Industrial Co., Ltd. Unterfadenwechselvorrichtung

Also Published As

Publication number Publication date
AU7450298A (en) 1999-04-05

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