TW201009150A - Valance stitch sewing machine - Google Patents

Abstract

To easily adjust a carrier and a hook when changing needle spacing. A valance stitch sewing machine 10 for changing and adjusting intervals between a plurality of needles 101 to 104 includes: a carrier 121 and a hook 122 for holding valance stitch yarn in cooperation so that valance stitch yarn K crosses in the forward direction between any two needles when locating needles; a reciprocal rotating shaft 107 for granting a reciprocal rotary force to the hook and the carrier; a first transmission mechanism 30 for transmitting power to the carrier from the reciprocal rotating shaft; and a second transmission mechanism 40 for transmitting power to the hook. The valance stitch sewing machine includes: a first adjustment mechanism 70 for adjusting a distance between a rotation end part of the carrier and a rotation center; and a second adjustment mechanism 80 for adjusting a distance between the rotation end part and the rotation center of the hook.

Description

201009150 VI. Description of the Invention: TECHNICAL FIELD The present invention relates to a sewing sewing machine for adjusting an interval of a plurality of sewing needles. BACKGROUND OF THE INVENTION As shown in Fig. 8, an upper decorative stitching sewing machine is a plurality of sewing stitches which are formed in a relatively parallel manner by a plurality of sewing needles, so that the upper decorative ruler is sewn into the sewing stitches of the parallel sewing stitches while being snaked to the left and right. Sewing machine. The above-mentioned decorative sewing sewing machine is a so-called seam-stitching upper decorative sewing machine. As shown in Fig. 9, the sewing machine is operated by a fixed knife provided on the presser foot 110 and a movable knife to cut the two edges of the fabric by pressing the edge portions to each other and erecting upwards. The upper end of the portion is erected so that the ends are aligned, and the aligned ends are lowered, and one of the ends is placed on the other side, and the stitching is performed on the overlapping portion. The decorative sewing machine 1A has a needle bar 1〇5 having four rib pins 1G1 to 1G4 arranged in a row in a direction perpendicular to the cloth conveying direction (the arrow direction); The upper part of Wei presses the fabric of the sewn object; the pressing bar 11 is the lower end of the pressing piece 110; the pressure spring 112' is passed through the pressing bar 1U and (4) the pressing pressure generated by the pressing foot m The carrier 12l and the fishing h (h〇〇k) i22 are operated together to keep the upper decorative line κ in the extended state - the surface is shaken, so that the upper decorative line is The ribs (4) 2 and 1 () 3 are transported in the direction of 201009150; the main shaft 106 of the sewing machine is fully rotated by the sewing machine motor; the power transmission mechanism 130 transmits the shaking (reciprocating) motion to the rocking The moving shaft 107, the first transmission mechanism 140 transmits the rocking power to the carrier 12 by the rocking rotary shaft 1〇7; and the second transmission mechanism 15〇 transmits the rocking rotation by the rocking rotary shaft 107. The lower end of the needle bar 105 of the power to the hook 122 is provided with a needle clamp 10 for holding the four stitches 8. The presser bar U1 holding the presser foot 110 at the lower end portion is adjacent to the needle bar 105 and supported by a sewing machine frame (not shown). The swinging rotary shaft 107 has a cylindrical shape, and the aforementioned pressing rod U1 is inserted into the cylinder. The swinging rotary shaft 107 is rotatably supported by the metal bearing 109 by a sewing machine frame (not shown), and the center of rotation of the swinging rotary shaft 1?7 coincides with the axial center of the pressing rod 111. a power transmission mechanism 13 that imparts a wobble motion to the rocking and rotating shaft 107 is a reciprocating rod 132 that is rotatably held at the end portion by an eccentric cam 13 fixedly mounted on the main shaft 1〇6, and It is coupled to the other end portion of the reciprocating rod 132 and is configured to hold the shaft-wrapping member 133 that swings the upper end portion of the rotary shaft 1〇7. The reciprocating rod 132 is perpendicular to the main shaft 1〇6 and faces an almost horizontal direction. Since the cam 131 is eccentric with respect to the main shaft 1〇6, when the main shaft 1〇6 performs the rotation medium, the end portion of the reciprocating rod 132 performs a ring-burning motion centering on the main deactivation. When one of the reciprocating rods 132 performs a circular motion, the surrounding motion is transmitted to the end portion, and the (four)-end portion is subjected to almost horizontal advancement and retreat. The other end portion of the reciprocating rod (1) The shaft member 33 is coupled to the shaft member 33 via the 2〇1〇0915〇 spherical bearing I32a, and the forward and backward movement in the direction in which the reciprocating jaw io is extended is transmitted to the shaft shaft member 133. As a result, the wrap-around member 133 performs a rotational motion with the squeezing rotary shaft _07 as the center of the squeezing lever, and the swaying rotary shaft 107 is oscillated. The other end portion of the reciprocating rod 132 is linearly moved, but the operation of the spherical bearing 1323 allows the movement along the circumference of the wrap member 133. In Fig. 10 and Fig. 11, the first transmission mechanism 14 is configured to have a rotary arm 141 coupled to the lower end portion of the swing rotary shaft 107, and a transmission end portion coupled to the rotary end portion of the red movable arm M1. The connecting rod (4) and the lever end 143 are coupled to the lever shaft 143 at the other end of the transmission link 142. The swing arm 141 has a recessed portion 141a that is engaged with the hook portion 107a provided at the lower end portion of the swing rotary shaft 107, and the presser bar 111 is swung with the swing rotary shaft m. Further, the 'rotating arm (4) extends in the radial direction centered on the rod 105, and is coupled to one end of the transmission link 142 in the vicinity of one of the side surfaces of the extending end portion. The damper shaft 143 is integrally formed by the fulcrum portion 143a and the lever portion, wherein the fulcrum portion 143a is rotatably supported by the yoke in a state in which the yoke is in the up and down direction, and the lever portion 143b is attached. The upper end portion of the fulcrum portion extends in the vertical direction. Further, the front end portion of the lever portion is coupled to the other end portion of the transmission link 142, and the lower end portion of the branch shaft portion is supported as the shaft of the carrier 12. With the foregoing configuration, the first transmission mechanism 140 constitutes a four-node linkage mechanism that swings the rotary shaft 1〇7 as a section, and transmits the vibration to the carrier weft by simultaneously recording the swinging rotary shaft 1〇7. ^(2) Construction. 5 201009150 The second transmission mechanism 150 is configured to share the rotation arm 141 with the first transmission mechanism 140, and is composed of a rotation arm 141 and a transmission link 152 whose one end is coupled to the rotation end of the rotation arm 141. And a lever shaft 153 whose front end of the lever is coupled to the other end of the transmission link 152. The lever shaft 153 is integrally formed by the support shaft portion 153a and the lever portion 153b, wherein the support shaft portion 153a is rotatably supported by the presser foot 11G in a state in which the axial center is in the up and down direction, and the lever portion 1531 ) is extended in the vertical direction at the upper end portion of the support shaft portion 153 & Further, the front end portion of the lever portion 153b is coupled to the other end portion of the transmission link I52, and the lower end portion of the fulcrum portion is supported by the shaft of the shackle 122. The second transmission mechanism 150 is identical to the first transmission mechanism 14〇, and also constitutes a four-node linkage mechanism that swings the rotary shaft 107 as a section, and transmits the swinging rotation to the swinging rotary shaft 107 in synchronization with the swinging shaft 107. The construction of the hook 122. - In Figures 13 and 14, the carrier 1 is rotated by the rotation of the carrier - the end of the rotation is reversed (toward the direction of the needle 1〇1~1〇4) and back (from The stitching ejector pin 1〇1~1〇4 is directed toward the one side of the cloth in the direction in which the cloth is conveyed) and the rotating front end portion is formed by the guiding top-loading _ red cylindrical portion and the claw portion mb . The tubular portion 121 can hold the upper decorative line regardless of the movement of the carrier 12 in the direction of the front and rear directions, and the claw portion mb can maintain the upper skirt line κ only when moving forward. When retreating, it becomes a liberate shape (for example, a shape that is open in front). Further, the tubular portion is located outside the center of the rotation of the claw portion mb, and the tubular line portion ma is inserted from the outside by the line supply source output upper decorative line κ. Further, when the carrier (2) is advanced, the tubular portion 121a reaches the left outer needle (the rib needle on the leftmost side of the left side 6 201009150 when the cloth transport direction is eight), and the outer side (left side) of the left side, and the claw portion reaches the left side. The outer needle ι〇ι is between the left middle needle 102. The puller 122 is rotated by the swing so that the end of the swivel is moved in the same direction as the right side of the carrier (the figure 13) in the same direction as the advance and retreat of the carrier 121. The stitches 101 to 104 are moved in the direction opposite to the cloth transport direction and left (the _) toward the left side (reverse). The swivel front end portion of the hook 122 forms a fishing portion (10) for capturing the upper decorative line κ. The hook portion 122a protrudes below the bottom surface of the hook and has a structure in which the sharp front end portion is retracted in the backward direction. Thereby, the pull fishing 122 can capture the moving line κ from the carrier 12 toward the cloth. The decorative suture slitting machine track formed by the above-described configuration causes the main side 6 to perform the turning of the main side by driving the sewing machine motor, and the needle bar iQ5 is moved up and down. Then, the rotational driving of the main shaft 1〇6 is transmitted to the swinging rotary shaft 1〇7 through the power transmission mechanism 13〇, and the first transmission mechanism 140 and the second transmission mechanism 150 are synchronized with the sewing needle 〇 The upper and lower movements of 1 to 1〇4 cause the carrier 12 and the hook 122 to swing and rotate. Yu Yu, the moment before the lower needle, as shown in Fig. 13, the carrier 121 and the hook 122 advance, and the annular portion 121 & of the carrier 121 reaches the left outer needle ι〇ι, the claw 121b arrives The left outer needle 101 and the left middle needle 1〇2 are located, and the hook portion 122a of the hook 122 reaches the right rear side of the right outer needle 104. Thereby, the upstream part of the upper decorative line (the line supply side 洱丨 is held inside the left outer needle 1〇1 and the left middle needle 1〇2 in the transport direction, and the downstream part (cloth side) κ2 is bent ( L〇〇p) is captured by the hook portion 122a and passes between the left middle needle 102 and the right middle needle 1〇3, and is held behind the transport direction of the right middle needle 103 and the right outer needle 104. 201009150 Then, the lower needle is performed in this state to sew the upper decorative thread. Further, when the sewing ejector pins 101 to 104 are lifted and are withdrawn from the cloth, as shown in Fig. 14, the carrier 12 and the pulling The fishing 122 retreats, and the fishing portion 122a of the fishing unit 122 is disengaged from the curved portion of the downstream portion & 2 of the upper decorative line κ, and by the weft loading (5) 21, the hook 122 is pushed into the line supply source to the上 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Line K forms the f-curve of Fig. 13. Then, the decorative stitching is carried out in response to the foregoing behavior. (Refer to Non-Patent Document j) [Non-patent document ιμυκι Co., Ltd. issued "Send D wrist type 〇 Series 廿 one 匕, decoration *9 シ シ ^ — ψ —,, 3 6 2 〇

22:7 melon" ρ·30·37, issue date: 2〇〇6年12月 t: Invention content: J The invention reveals the problem to be solved by the invention

However, the above-mentioned upper decorative suture stitching machine can exchange the needle clip and the needle board (not shown) in response to the change of the stitch stitches to perform the change adjustment of the needle width (the spacing of the stitches of each stitch). At this time, since the position of the needle under the severing needle is also changed, the tubular portion and the claw portion (4) of the carrier 12 are interfered with the skein. Therefore, the arm of the carrier 121 is changed. The long necessity 'however' is due to the adjustment of the carrier 12, the line age of the claw portion 12lb to the lining 122a is changed, and the sister hook 122 cannot capture the line, so the hook 丨 22 also generates a change arm. Long necessity. In this way, when the decorative sewing machine is used to change the needle width, it is necessary to exchange the carrier and the hook. In addition, since the carrier 12 of the carrier 12 and the transmission mechanisms 140 and 150 are all loaded into the pressing foot 11 而 and unitized, when the needle width is changed and adjusted, the pressing foot 110 is exchanged. However, the aforementioned presser foot 110 needs to be adjusted during installation to adjust the left and right positions or to avoid competition for up and down motion. In particular, it is difficult to smoothly adjust the position of the presser foot 11 to make the vertical movement uncompetitive, and if the adjustment is insufficient, the action of the presser foot 110 cannot follow the section of the cloth, etc., in order to cause suture failure. the reason. Therefore, when the needle width is changed, there is also a problem that the presser foot 11 is required to perform complicated and precise position adjustment. Further, when the position of the lower needle is changed as the needle width is changed, the rocking angle of the carrier 121 and the hook 122 also needs to be changed. To change the rocking angle of the hook 122, the wrap member 133 is exchanged to change the inter-center distance from the center of rotation of the wrap member 133 to the center of the spherical bearing 132a. When the aforementioned shaft member 133 is exchanged, the presser foot 11 is removed from the press bar and the pressure spring 112 is removed, and the stick 111 is removed from the seam frame, and the shaft member 133 is removed from the frame. The reciprocating rod 132 and the equator (4) 7 ride are carried out by exchanging the shaft member 133 corresponding to the needle width. Further, after the package shaft member 133 is exchanged, in order to operate the rocking rotary shaft 1〇7 in the positive shank phase, the shaft member (2) and the fishing unit 122 are also indispensable, and the shaft shaft member 133 and the rocking shaft 1〇7 are also indispensable. The problem of phase adjustment work. When changing the needle width, it is not only necessary to exchange the needle clamp and the needle plate, but also to solve the problem of complicated work of exchanging and adjusting most other parts. The invention not only needs to exchange the carrier and the fishing rod even if the needle width is changed, 201009150 and nowadays it is easy to adjust the carrier and the hook to improve the efficiency of the maintenance. Means for Solving the Problem Patent Application Scope of the Invention According to the invention, the decorative suture seam cutting machine of the above-mentioned decorative suture seam (four) has: (4) the seam, along the direction of the cloth transport direction g&amp ; set in a row, and move up and down; the carrier and the pull fishing 'storage by the co-operation with the needles of the plural _ needles' to maintain the decorative line forming the upper decoration _ stitches, the reciprocating movement of the _ needle Shaking the rotator; shaking the rotating shaft, interlocking: the main shaft of the machine, and the rotator can be oscillated about the vertical axis; the first-transmission mechanism is disposed between the swaying rotating shaft and the carrier, and The rocking power of the front swinging rotary shaft is transmitted to the carrier; and the second transmission mechanism is disposed between the rocking rotary shaft and the hook, and transmits the rocking power of the rocking rotary shaft to the hook , and having a first adjustment mechanism that adjusts the distance from the center of rotation of the carrier to the front end; and a second adjustment mechanism that adjusts the distance from the rotation of the hook. The second cookware The same configuration as the invention described in the first aspect of the patent application, wherein the first ice mechanism has a first rotation axis and is disposed to be eccentric with respect to the first _s, that is, not to burn the sleeve and = the aforementioned - eccentricity, shaft portion, the second adjustment mechanism has a = rotation axis and a second eccentric shaft portion disposed opposite to the second rotation_heart and __ 杈 hook. Patent No. 201009150 has the same configuration as the invention described in the first or second aspect, and is an arm member and both ends which are fixed to the rocking rotary shaft and extend in the warp direction of the rocking rotary shaft. An advancing and retracting member coupled to the arm member and the main shaft of the sewing machine to impart a wobble motion to the swinging rotary shaft; and a connecting portion between the arm member and the advancing and retracting member is provided along the aforementioned connecting position A rotation angle adjustment mechanism that adjusts the radial direction movement.

The invention described in claim 4 has the same configuration as the invention described in claim 3, wherein the rotation angle adjustment mechanism has a long hole formed in the arm member along the radial direction and The locking member that is locked in the longitudinal direction can be moved in the direction of the long hole. The invention described in the first aspect of the patent application can exchange the weft and the hook when the needle width is changed. As a result, since it is not necessary to perform the exchange of the presser foot with the exchange of the weft feeder and the hook, it is not necessary to perform complicated work of adjusting the position of the presser foot. Therefore, when the needle width of the sewing machine is changed, it is possible to easily adjust the needle width without performing complicated operations such as part exchange or position adjustment. The invention described in claim 2 can adjust the distance from the rotary end of the carrier and the hook to the center of rotation by operating and rotating the rotary shaft in accordance with the eccentric amount. Therefore, the adjustment of the rotational radius of the carrier and the hook accompanying the adjustment of the needle width can be easily performed. In the invention described in claim 3, when it is necessary to change the needle width to change the rocking angle of the carrier and the hook, the adjustment swing angle can be changed only by the adjustment operation of the joint position, and it is not necessary to赋11 201009150 The power transmission mechanism that swings the rotary shaft power performs component exchange work, which improves workability. The invention described in claim 4 of the patent application can be more easily adjusted by a simple configuration to provide two work efficiency. C. EMBODIMENT OF THE PREFERRED EMBODIMENT OF THE PREFERRED EMBODIMENT OF THE PREFERRED EMBODIMENT OF THE PREFERRED EMBODIMENTS The overall configuration of the embodiment of the present invention will be described below with reference to Figs. 1 to 7 . The same components as those of the above-described decorative sewing machine 100 are designated by the same reference numerals and the description thereof will not be repeated. As shown in FIGS. 1 and 2, the upper decorative sewing machine 10 includes the above-described needle bar 105, presser foot 110, press bar in, pressure spring η, carrier 12, hook 122, spindle 106, and Shaking the rotating shaft 1〇7, and further having a power transmission mechanism that transmits power from the main shaft 106 to the swinging rotating shaft 1〇7, 30, and transmits the rocking and rotating unit to the carrier 12 from the swinging rotating shaft 1〇7. The first transmission mechanism 40 of the power transmits the second transmission mechanism 50 that transmits the swinging power to the hook 122 from the swinging rotary shaft 1〇7, and adjusts the distance from the rotating end of the carrier 121 to the center of rotation. An adjustment mechanism 70, and a second adjustment mechanism 80 that adjusts the distance from the swivel end of the hook 122 to the center of the swivel, and all of which are simplified in the seam_frame 20. X The above-described upper decorative stitching sewing machine 10 is also a curved arm type decorative stitching 'knife stitching type') and is conveyed along the bed portion 21 of the rib frame 20 as a material for the material to be sewed, and at the time of sewing work Since the operator performs the sewing operation from the side of the vertical trunk 422, the sewing machine frame 20 has a shape in which the bed portion 21 and the arm portion 23 do not overlap in order to make the hand movement easy to see 12 201009150. That is, the bed portion 21 and the arm portion 23 extend in different directions around the vertical trunk portion 22, and the arm portion 23 is designed to be bent in the middle so that the front end portion is directly above the end portion of the bed portion 21. (Power Transmission Mechanism) In the third and fourth drawings, the configuration of the power transmission mechanism 30 that imparts the swinging rotation to the swinging rotary shaft 1〇7 has an eccentric cam 31 fixedly mounted to the main shaft 1〇6, and is rotatable. a cam member 34 that is fitted to the eccentric cam 31 and inserted and held therein, a shaft shaft member 33 fixed to an upper end portion of the swinging rotary shaft 107, and a swinging rotation angle of the swinging and rotating shaft 107 The moving angle adjusting mechanism 35 and the revolving lever 32 fixed to the wrap shaft member 33 that swings the swivel shaft 107 and the cam member 34 that is supported by the main shaft are coupled to the swivel angle adjusting mechanism 35. That is, both ends of the reciprocating rod 32 are coupled to the swinging rotary shaft 1 () 7 and the main shaft 106. The cam slave member 34 rotatably supports the eccentric cam 31, and performs a wraparound motion by the eccentric cam 31 as the main shaft 106 rotates. The shaft shaft member 33 is fixedly disposed at an upper end portion of the swinging rotary shaft 1〇7 by a lock screw. A spherical bearing 32a is provided at both end portions of the reciprocating rod 32, and the cam member 34 and the bobbin member 33 are coupled to the spherical bearing 32a. An extension portion (swirl arm portion) 36 is integrally formed on the shaft shaft member 33 and extends from the radial direction of the rocking rotary shaft 107, and the extension portion 36 is along the extending direction thereof (shaking the rotation shaft 1〇7) A long hole 36a is formed in the radial direction. The screw cup 37 passes through the spherical bearing 32a of the reciprocating rod 32, and is inserted into the long hole 36a, and is locked by a 13 201009150 nut to be joined together. Since the reciprocating rod 32 holds the spherical bearing 32a at both end portions thereof, when the cam subordinate member 34 is transported (4), only the reciprocating displacement along the reciprocating (four) long direction t can be transmitted to the side of the wrap shaft member 33. In the case of the screw, the screw rod 37 is loosely opened at the lower end of the nut, and the position can be arbitrarily adjusted along the long hole 36a, and can be fixed at any position by the lock nut. The (four) turn 37 and the nut 38 can constitute a locking member. Thereby, when the screw rod 37 is fixed toward the inner side of the swivel radius of the extending portion 36, since the distance between the center of rotation of the shaft member 33 and the spherical bearing 32a is shortened, the reciprocating rod 32 can be made. Since the swinging rotation angle of the swinging rotary shaft 107 is increased by the reciprocating motion, and the screw rod 37 is fixed toward the outer side of the turning radius of the extending portion 36, since the rotation center from the shaft shaft member μ to the spherical bearing The distance between the centers of the centers of 32a becomes long, so that the reciprocating motion of the reciprocating rod 32 causes the shaking of the lungs 1 () 7 to decrease the moving angle. That is, the amplitude of the swing angle of the swing rotary shaft 107 can be arbitrarily adjusted by adjusting the position of the screw lever 37. Therefore, the rotation angle adjusting mechanism 35 can be configured by the long hole 36a, the screw rod 37, and the screw (4). In Fig. 5, the first transmission mechanism 4 is configured to have a transmission link that is coupled to the rotary end of the lower end of the swing rotary shaft 107 and that is coupled to the rotary end of the rotary arm 141 at one end. 42. The lever shaft 43 is coupled to the other end of the transmission link 142 at the tip end of the lever. The lever shaft 43 is constituted by the support shaft 43a and the arm member 43b of the individual members, wherein the support shaft 43a is in the state in which the axial center is in the up and down direction, and is rotatably received by the cloth. The arm member 14 can be mounted on the upper end of the support shaft 43a and extends in the direction perpendicular to the support shaft 43a, and the lower end portion of the support shaft 43a is transmitted through the rotary front end portion of the carrier 12 The first adjustment mechanism 7 of the turning radius is coupled to the carrier 121. With the above configuration, the first transmission mechanism 40 is configured to swing the rotary shaft 1〇7 as a four-node linkage mechanism, and to transmit the swing to the carrier weft in synchronization with the swinging rotary shaft 1〇7. The structure of the device 丨21. [0026] The second transmission mechanism 50 is configured to share the rotation arm 141 with the first transmission mechanism 4, and is connected to the rotation end of the rotation arm 141 by one end portion of the rotation arm 141. The lever 152 and the lever shaft 53 whose front end of the lever is coupled to the other end of the transmission link 152 is formed. The lever shaft 53 is formed by a support shaft 53a and a lever portion 53b, wherein the support shaft 53a is a second rotation shaft supported by the rotatably pressed foot 110 in a state in which the axial center is in the up and down direction. The rod portion 53b is attachable to the upper end portion of the support shaft 53a and extends in the direction of the vertical support shaft 53a, and the lower end portion of the support shaft 53a is transmitted through the second rotation radius of the rotary front end portion of the adjustment hook 122. The adjustment mechanism 80 is coupled to the base end of the hook 122. The second transmission mechanism 50 also has the same configuration as the first transmission mechanism 40, and is configured to swing the rotary shaft 107 as a four-node linkage mechanism, and to swing and rotate it synchronously with the swinging rotary shaft 107. Communicated to the construction of the hook 122. (First and Second Adjustment Mechanisms) In FIGS. 6 and 7, the first adjustment mechanism 70 has a first flat portion 71 and a second flat portion 72, a lock screw 73, an eccentric shaft portion 74, and a lock.螺 15 201009150 The wire 75, wherein the first flat portion 71 and the second flat portion 72 are formed at the upper end of the outer edge of the support shaft 43a of the first transmission mechanism 40, and the locking screw 73 can select and fix the arm member 43b. The eccentric shaft portion 74 is fitted to the base portion of the carrier 12 integrally formed at the lower end portion of the support shaft 43a as the first eccentric shaft portion, and the lock screw 75 is attached to the relative angle of the support shaft 43a. The carrier 12 is fixed to the eccentric shaft portion 74 at an arbitrary angle. Further, the second adjustment mechanism 80 has the same configuration as the first adjustment mechanism 70, and has a first flat portion 81 and a second flat portion 82' locking screw 83, and is fitted to the base of the hook 122 as a second eccentricity. The eccentric shaft portion 84 of the shaft portion and the lock screw 85. As shown in Fig. 7, since the center line of the eccentric shaft portion 74 (84) with respect to the support shaft 43a (53a) is eccentric, the arm member 43b (53b) centered on the support shaft 43a (53a) is maintained while rotating. The support shaft 43a (53a) at an angle with the carrier 12 (the hook 122) is coupled to the front end portion of the carrier 12 (the hook 122) at the lower end portion to the center of the rotation (the support shaft 43a (53a)) The distance will change. In the present embodiment, since it is conceivable that there are two types of needle widths which can be changed, it is necessary to switch the length of the swirl radius of the carrier 12 and the hook 122 between the two types. Therefore, the upper end portion of the support shaft 43a (53a) is provided with two flat portions 71, ® 72 (8b 82), and is respectively opposed to the two types of support shafts 43a (53a) by the lock screws 73 (83). The axial angle of the arm member 43b (53b) is selected and fixed. As a result, in a state in which the angle of the arm member 43b (53b) centering on the support shaft 43a (53a) and the carrier 12 (the hook 122) is maintained, the flat portion 71 (81) is locked by the lock screw 73 (83). When the shaft angle is fixed, the turning radius of the carrier 12 (the hook 122) (the distance from the center of the rotation to the front end of the rotation) is set to L1 ' and the locking portion 73 (83) is opposed to the flat portion 72. (82) When the shaft angle is fixed, the rotation radius (distance from the center of the rotation to the front end of the rotation) of the loader 2010 201090150 weft 121 (the hook 122) is set to L2. Further, the end surface of the support shaft 43a (53a) is subjected to a machining operation by a tool such as the slit 76 (86) in order to facilitate the switching shaft angle. Further, the position of each of the flat portions 71, 72 (81, 82) and the eccentric amount of the eccentric shaft portion 74 (84) can be appropriately set in accordance with the adjustment amount of the needle width. Further, the flat portion is not limited to two types, and may be provided more, and may be set to an arbitrary angle without being set to a flat surface. (Description of the operation of the upper decorative stitching sewing machine) Since the upper sewing sewing machine 1 is not the same as the above-described decorative sewing sewing machine 100, the description thereof is omitted. Here, the setting switching operation of each unit performed by switching the needle width will be described. When the needle width is switched by the parent needle exchange clamp 108, first, a pulley (not shown) fixed to the main shaft 106 is operated and rotated to match the phase of the carrier 12 with the most advanced position. The position of the sewing needles 1〇1 to 1〇4 is changed, and the half-rotation of the carrier 12 and the hook 122 is adjusted. That is, in a state where the angle of the arm member 43b (53b) centering on the support shaft 43a (53a) and the carrier 12 (the hook 122) is maintained, the lock screws 73, 83, 75, 85 are loosened, and Use the tool to operate the fulcrum..., and rotate it 180 degrees. As a result, the individual turning radii of the carrier 121 and the hook 122 are switched. After the switching, the locking screws 73, 83, 75, 85 are locked. Further, the rotation stroke of the carrier 12 and the hook 122 is adjusted by the rotation angle adjustment mechanism 35. That is, the 17 201009150 nut 38' of the rotation angle adjustment mechanism is loosened and the screw rod 37 is moved along the elongated shirt of the extension portion. Thereby, due to the most advanced position of the carrier m and the fishing tackle 122 The final retracted position and the swivel stroke are changed, so that the position of the screw lever 37 is fitted to the proper position' and the nut 38 is locked and fixed. Thereby, the adjustment of each part caused by the change of the needle width is completed. The effect of the aspect) is a decorative sewing machine 1 according to the above configuration, and has a first adjusting mechanism 70 that can adjust a distance from a rotating front end portion of the carrier 12 to a center of rotation, and The second adjustment mechanism 8A that adjusts the distance from the swivel front end portion of the hook 122 to the moving center is adjusted. Therefore, when the adjustment of the needle width is changed, the carrier 121 and the hook 122 are not exchanged. As a result, since it is not necessary Since the presser foot is exchanged with the carrier 12 and the hook 122, the complicated presser foot position adjustment operation can be omitted. _ Further, the support is supported as the axis of the carrier 12 and the hook 122, respectively. The shafts 43a, 53a are transmitted through Since the centering eccentric shaft portions 74 and 84 of the center are respectively coupled to the carrier 12 and the hook 122, the rotation of the carrier 121 and the hook @ 122 can be adjusted in accordance with the eccentric amount by operating the rotation shafts 43a and 53a. The radius of movement is therefore easy to adjust the radius of rotation of the carrier and the hook with the adjustment of the needle width. Therefore, when the needle width of the sewing machine is changed, the accompanying part replacement or position is not required. Adjusting the needle width can be easily performed by adjusting complicated operations, etc. Further, since the upper decorative seam sewing machine 10 is provided between the connecting rod 3 2 of the driving transmission mechanism 3 and the extending portion 36, the connection can be made. The rotation (four) degree adjustment mechanism 35 is adjusted along the direction of the radius 18 201009150, so when the rotation stroke of the carrier is dirty, the screw stroke of the screw 37 and the nut 38 is only required to cooperate. The adjustment _Shaw degree can be changed, and the component exchange operation of the 1G7 power of the swinging rotary shaft can be given, and the workability can be improved.

Although the upper riding rib machine 1G is used to change the needle width by the exchange needle center (10), it is not limited to this method. For example, the sewing needles 101 to 104 can be used to move the adjustment structure with respect to the needle holder. Further, although the carrier 121 and the hook 122 pass through the spindle 1〇6 to obtain the driving force of the spinning operation from the sewing machine motor, they may have independent common or separate driving sources. Further, although either of the first and second adjustment mechanisms 70, 80 utilizes the eccentric shaft portions 74, 84 to adjust the rotational radius of the carrier 12 and the hook 122, as long as the length of the rotation radius can be adjusted It is sufficient, and is not particularly limited to this method. For example, it is also possible to use a configuration in which the carrier 12 (the hook 122) is disposed so as to be slidably movable in the direction in which the fulcrum radius is displaced along the fulcrum 43a (53a), and has a fixing mechanism fixed at an arbitrary position. . Further, the rotation angle adjustment mechanism 35 for adjusting the swing rotation angle of the swing rotation shaft 107 can be said to be the same "for example, in the rotation angle adjustment mechanism 35, although the rotation radius of the extension portion 36 is by the screw rod The sliding operation of 37 is adjusted, but is not limited to this method, and the eccentric cam configuration can also be used to change the adjustment rotation radius. BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1] A perspective view showing the overall configuration of a decorative stitching sewing machine on the embodiment of the invention. Figure [Fig. 2] The seam_frame_^ is to be constructed in a red perspective. [Fig. 3] A perspective view of the power transmission mechanism. [Fig. 4] A perspective view of an important part of the power transmission mechanism. [Fig. 5] A perspective view showing the carrier pull hook and the transmission mechanism. [Fig. 6] Dimensions of the lever shaft of the (second) transmission mechanism (4)

[Fig. 7] Explanation of the adjustment operation of the first (second) adjustment mechanism (A) shows the case where the rotation is half-recorded, and the cap display shows the conventional decoration on the ___ surface. Figure.卞 [Fig. 9] The main structure of the conventional seam cutting machine frame [Fig. 1] shows the ^ _ _ _ _ drum drum perspective. [The η predicate shows the known hooks and the three-dimensional diagram of the transmission mechanism.

[Fig. 12] An operation explanatory diagram showing the state in which the carrier and the fishing unit maintain the upper decorative line. [Fig. 13] A motion explanatory diagram showing the state in which the carrier slider is held in the upper decorative line, and shows the most advanced state of the carrier. [Fig. 14] An operation explanatory diagram showing the state in which the carrier and the fishing unit maintain the upper Korean thread, and shows the final state of the carrier. [Explanation of main component symbols] 10· · ·Upper decorative stitching _ 20···stitching machine frame 20 201009150

21.. Bed portion 22:. Longitudinal trunk 23: Arm portion 30.. Power transmission mechanism 31.. Eccentric cam 32.. Reciprocating rod 32a... Spherical bearing 33.. Member 34.. cam follower 35.. Rotary angle adjustment mechanism 36.. Extension 31a··. Long hole 37.. Screw rod 38.. Nut 40... First transmission 43 . . . lever shaft 43a... support shaft 43b... arm member 50.. second transmission mechanism 53.. lever shaft 53a... support shaft 53b... lever portion 70.. Mechanism 71...first flat portion 72...second flat portion 73.. locking screw 74.. eccentric shaft portion 75.. locking screw 76.. slit 80.. second adjusting mechanism 81. . . . the first planar portion 82 . . . the second planar portion 83 . . . the locking screw 84 . . . the eccentric shaft portion 85 . . . the locking screw 86 . . . the slit 100 .. . the upper decorative sewing sewing machine 101 ···Sewing needle (left outer needle) 102··.Sewing needle (left middle needle) 103.. .Sewing needle (right middle needle) 104···Sewing needle (right outer needle) 105...needle rod 106·· Main sleeve 107.. Shake the rotating shaft 107a... Hook 108.. Needle clip 109.. Metal bearing 110.. Pressing foot 21 201009150 111... Pressing bar 143a... Support shaft portion 112... Pressure spring 143b... Lever portion 121... Carrier 150... Second transmission mechanism 121a... Cylindrical portion 152... Transmission link 121b... Claw portion 153... Lever shaft 122.. Pull fishing 153a... fulcrum portion 122a... hook portion 153b... lever portion 130.. power transmission mechanism 131.. eccentric cam A. .. cloth transport direction B. .. seam stitch _ 132... reciprocating rod K... upper decorative line 132a... spherical bearing K1... upstream portion 133... wrapping shaft member K2... downstream portion 140... first transmission mechanism K3.. Curved portion 141...swivel arm L1...swirl radius - 142...drive link L2...swirl radius 143...lever axis ❿ 22

Claims (1)

201009150 VII. Application for Patent Fanyuan·· J. An upper decorative sewing machine with: a plurality of sewing needles arranged in the direction of intersection, which are arranged along the direction of transport of the cloth and reciprocating up and down; compound weft 1 and hook storage The needle of the plurality of rib needles is used for the same operation, and the decorative line forming the upper decorative _ stitch is maintained, and the whirl is moved in conjunction with the reciprocating movement of the aforementioned _ needle; Shaking the swivel sleeve, which is linked to the vertical machine, and can rotate the rotation centered on the vertical axis; the first-transmission mechanism is disposed between the rocking rotary shaft and the carrier, and swings the rocking shaft The power is transmitted to the carrier; and the second transmission mechanism is disposed between the simple money shaft and the pull fishing, and transmits the rocking power of the rocking rotary shaft to the puller, wherein the upper decorative sewing machine is characterized in that The first adjusting mechanism adjusts the distance from the center of rotation of the carrier to the front end; and the second adjusting mechanism adjusts the distance from the center of rotation of the hook to the front end. 2. The decorative stitch sewing machine according to the third aspect of the invention, wherein the first adjusting mechanism has a first rotating shaft and a first eccentric shaft portion disposed to be eccentric with respect to the first rotating shaft and supporting the carrier. The second sensing mechanism has a second rotation axis and a second eccentric shaft portion that is disposed eccentrically with respect to the second rotation wheel and supports the hook. 23 201009150 3. The decorative stitch sewing machine according to claim 1 or 2, which is connected to the arm member and the two ends which are fixed to the rocking rotary shaft and extend in the radial direction of the rocking rotary shaft. The arm member and the advancing and retracting member ' of the main shaft of the sewing machine provide a rocking and swinging motion of the swinging rotary shaft; and the connecting portion between the arm member and the advancing and retracting member is provided with the connecting position along the path A rotation angle adjustment mechanism that moves the adjustment in the direction. 4. The decorative stitch sewing machine according to claim 3, wherein the rotation angle adjusting mechanism has a long hole formed in the radial direction along the radial direction and is movable in a longitudinal direction of the long hole. The locking member that penetrates the ground. twenty four