TW538169B - Button sewing machine - Google Patents

Abstract

To prevent a thread from being cut before a moving knife and a fixed knife are mated with each other. A button sewing machine comprising a needle 410, a cloth pressing mechanism 110 for interposing a button and holding a workpiece and a cloth feeding mechanism 150 for moving the cloth pressing mechanism 110 is provided with a thread cutting device 200 according to the invention. The thread cutting device 200 pulls a thread close to a fixed knife 230 through a moving knife 220, and the moving knife 220 and the fixed knife 230 are mated with each other, thereby cutting the thread. Before the moving knife 220 is operated after the sewing is completed, the operation of the cloth feeding mechanism 150 is controlled to adjust the position of the button with respect to the fixed knife 230. Consequently, a distance between a knotted portion and a blade portion 231 is always set to be constant and a length of a residual thread obtained after the cutting is changed optionally.

Description

^ 38169 11,1. "I III- I ΙΙΊ II nnnf II Bin M 4 ^ Description of the invention (i) Field of the invention The present invention relates to a button sewing machine for sewing a button when moving a button and a work object. To a work piece, and after the button is sewn, the stitch is cut by a moving blade and a fixed blade. BACKGROUND OF THE INVENTION A button sewing machine for sewing a button to a fabric (workpiece) includes The cloth is mounted on the platen and a button holding mechanism for holding the button, and has a structure in which the cloth is inserted and held between the button and the plate supported by the button holding mechanism. When the button is passed through the needle When the button is sewn onto the fabric, the button holding mechanism and the pressing plate are moved as a whole to set the needle positions in a predetermined order into a plurality of thread through holes formed on the button. Furthermore, the button is used to sew buttons through interlocking needles. In the case of a one-button sewing machine with a button, the stitches provided in the pair of wire through-holes are knotted at almost the center portion between the wire through-holes on the back of the fabric. On the knife, for example, as described in U.S. Patent No. 5,799,599 A well-known method is used to form the agglomerates for the end points of the seam. According to this, in the case where two or more wire through holes are known to be sewn, the formation position of the knotted part depends on the wire through holes. The order of the needle position in the center is changed with respect to the mouth. For example, the four-hole salamander has a seam that crosses the center of the mouth as shown in Figure 7 It has a stitch pattern with stitches between the holes 13a and 13b and between the holes ... and ⑴ as shown in Fig. 7 (b). The cross stitch pattern shown in Fig. 7 , Formed on the back of the fabric (please read the precautions on the back before filling this page) r ----- ^ --------- ^ Printed by the consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs

4 538169 Γ) 7 Five ... Description of the invention (2) One of the stitches on the part is provided with a knot on the almost central part of the button 'and a final agglomerate is formed in the same place. In the case of a parallel-arranged sewing pattern as shown in Fig. 7 (b), the knots are formed at two places in the almost central portion between two pairs of threaded through holes extending a stitch, and one last, will Taxi blocks are formed in one of two places. As shown in Figures 7 (a) and 7 (b), the button sewing machine includes a fixed blade 11 fixedly supported on a throat plate (not shown), and a rotatably supported on the throat plate. A moving cutter 12 and a suture cutting device composed of a suture distinguishing member 12 A provided on the moving cutter 12. When the moving blade 12 is rotated after sewing a button, the sewing thread distinguishing member 12A guides a needle thread connected to the fabric to a blade portion, and the ## of the blade of the moving blade 12 grasps the sewing thread and sews it The wire draws closer to the fixed blade 11 so that the fixed blade and the movable blade 12 are paired with each other. As a result, the suture is cut. Invention to be Solved However, according to the suture cutting device 10, the suture may be cut off when the moving knife 12 and the fixed knife are paired with each other to move the knife 12 closer to the suture. In particular, when the position of the knotted portion formed by the last needle position is deviated from the fixed blade 11, the distance by which the moving blade 12 moves the suture closer to the fixed blade ^ increases. Therefore, there is a high possibility that the suture may be tightened and cut by the moving blade 12 before the fixed blade and the moving blade 12 are paired with each other. If the fixed blade member 11 and the material blade member 12 are cut with each other by the trowel blade 12, the outer shape of the cut end of the suture is deteriorated. Do not rely on =, :: The 'stitching position for the last stitch position according to the X-shaped seam pattern shown in the figure or 297 mm in the 7th figure) Please read the note on the back first. 5 Zhang's ruler uses the Chinese national standard (CNSMi specification-538169 Λ; V. The difference in the initial pattern of a parallel seam of 3) is changed relative to the button. According to this, the through-hole of the button is guided to The length of the suture of the fixed blade depends on the stitch pattern. As a result, the length of the residual suture extending from the narration after cutting is changed, which reduces the commercial value. Therefore, one object of the present invention is to prevent the seam A moving blade and a fixed blade are cut before they are paired with each other, and then, the length of the remaining suture is adjusted. SUMMARY OF THE INVENTION In order to solve the problem, the "private of the private" of the present invention-level pointing-kind of button A sewing machine is used to pass a predetermined number of needles and needles; a button is sewn and then a stitch is cut. The sewing machine includes: a holding device 110 for holding a button and a work piece; a feeding device 150 for To move Move the holding device to sew the button to the work through a needle with a predetermined sewing pattern, a fixed blade 230; and a moving blade 22G, used to cooperate with the fixed blade to penetrate through To cut and close a suture; and a control device 300 'for controlling the cloth feeding device to move the button | mouth to the fixed blade before cutting the suture _ Preset position. As described above, according to the first level of the present invention, the position of the fixed blade is cut before the suture is cut. Therefore, the knot for the last needle position is knotted. The distance between the part and the fixed knife can be adjusted. According to this, the length of the remaining suture obtained after the suture is cut can be changed to a trade-off. When the length of the remaining suture is increased after the suture is cut ——The agglomeration is difficult to solve X 297 mm) Please read the notes on the back before filling out this page. Ordered by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 6 538169 Λ7 B7 Five Invention Instructions (4 Please read the notes on the back Ji Ran filled it out The buttons can be properly sewn to work clothes, for example. On the other hand, when Tian Meiyu's suture length is reduced after the suture is cut, the agglomerates have a good outer edge, so that the known buttons can be properly sewn. To fashionable clothes. Therefore, the sewing machine to which the thread cutting device according to the present invention is applied can sew buttons to the work according to the purpose of use of the work. Furthermore, 'the position of the button can be fixed close after sewing is completed. The knife can make the knotted part for the last needle position close to the fixed knife. According to this, when the suture is drawn through the moving knife, the suture can be prevented from being cut by the moving knife only. The second layer points to the suture knife cutting device according to the first layer of the present invention, wherein the control device moves the button 2 'relative to the fixed knife member to always tie the suture to the last stitch m The distance between the part and the knife part of the fixed blade is set constant. As described above, according to the second aspect of the present invention, the distance between the knotted portion of the suture with respect to the last needle position and the blade portion of the fixed blade can always be set strange according to the stitch pattern. As a result, the length of the remaining stitches can be set constant with any sewing pattern. The third aspect of the present invention is directed to the suture cutting device according to the first aspect of the present invention, wherein the control device moves the button relative to the fixed blade to change-the suture is knotted for one of the last needle positions The distance between the part and the knife part of the fixed knife, so that the length of the remaining suture can be changed after cutting the suture. As described above, 'According to the third aspect of the present invention, the knotted part of the suture for the last needle position and the fixed blade may be changed according to the stitching pattern of the Chinese paper (CNS) _A4 specifications. X 297 male) 538169

DESCRIPTION OF THE INVENTION

distance. As a result, the residual stitches can be freely changed after weaving. ^ Only know what to do

When the length of Wenyu suture is increased after 01 Junte7 green, UM〜 ~ Cut W to make the material μ…,% open at the suture, so that the button can be properly sewn to work clothes, for example. Another.] On the other hand, when the length of the residual suture is reduced after the seam ## is broken, the agglomeration has a good shape, so that two = ί 丨 丨 眭 十 十 仏 π 伃 buttons can be properly and sewn on U ,E.g. Therefore, the application of the seam cutting according to the present invention: the seam _ can be based on the purpose of the work object-sewing to work H. In addition, the sewing machine using the seam cutting device according to the present invention is targeted for various use purposes Comes to be used for sewing & Cut off: ΓΓ four levels point to the suture A of the third level according to the present invention, and further includes a correction input device for correcting the distance between the knot αP of the suture for the last needle position and the distance between the definite blades. 3 0 9. = As described above, according to the fourth aspect of the present invention, it is possible to correct the distance between the suture needle, the knotted portion of the ten position and the fixed blade. Therefore, even if the suture is directed to the knotted portion of the last needle position The position is changed, for example, the size or type of the mouth is changed, and the distance between the knotted part and the fixed blade can be adjusted appropriately. The fifth aspect of the present invention is directed to the first to fourth aspects of the present invention. Any one of the suture cutting devices, in which a preventive device (a guide member 26) for preventing the knife part of the moving knife of the sewing wheel from contacting until the fixed knife is paired with the moving knife ) Is provided in the moving blade. According to the fifth aspect of the present invention, it is possible to prevent the suture from being cut only by the moving blade during the winding of the suture, so that the size of the paper is outside the cut surface of the suture. Applicable Home Standard (CN—Specification ⑵〇χ 297mm; ~--8-

538169 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. The invention description can also be prevented. The sixth aspect of the invention is directed to the suture cutting device according to the fifth aspect of the invention, wherein the prevention device is formed in the The moving part is located in front of the knife part of the moving knife part in the moving direction—the guiding part, and the guiding part is connected with the suture to guide the fixed knife part. As described above, according to the above, In the sixth aspect of the present invention, the guide portion located in front of the knife portion of the moving knife is provided in the moving knife. Therefore, the portion is connected to the suture earlier. As a result, it is possible to prevent the knife portion of the moving knife Thread contact. According to this, it is possible to prevent the suture from being cut by the moving knife only when the fixed knife and the moving knife are paired with each other. It may be prevented from being cut when the suture is drawn closer. As a result, " άτρ Steps L,, _, and 4 prevent the outer shape of the cut portion of the suture from deteriorating. 31 ^ The mold of the present invention < The embodiment of the present invention will be described below with reference to the drawings. Single-cotton yarn continuous needle button The frame structure includes a base portion, a pedal portion, and a side arm portion and includes the -feeder 显示 shown in Fig. 1 and the -line cutting device 200 shown in Fig. 2. It is provided on the base portion. -The loop winding device 420 is operated synchronously with the vertical movement of the needle member 4Η) fixed on the lower end of the needle bar to grasp the stitch thread T of the needle member 41G. As a result, the wire ring formed earlier and the ground ring are connected to the wire ring. A loop of thread is formed to form a single continuous cotton needle. The needle 410 alternately passes through the two thread through holes of the button (Fig. 8) and B2U8) to form a single continuous cotton needle. Therefore, Niu Zhi was stitched to the seam (please read the precautions on the back before filling this page). National Standard (CNS) Al Specifications (21 ^ x 47mm) 9 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 538169 A7 V. Description of the invention (7) On the item W to be sewn (Figure 8). Then, for the last needle position, the operation for forming the last knotted portion is performed almost in the same place as the last time. Therefore, a knot is formed. After that, one of the suture cutting devices 200 moves the knife 260 to grasp the suture Ta 'on the side connected to the loop winding device 42 and the cloth, and cooperates with a fixed knife 23 to cut the seam. Line Ta. As shown in FIG. 1, the feeder 100 is composed of a cloth pressing mechanism 11 (holding device) for inserting buttons and holding a work, and a cloth for moving the cloth pressing mechanism 110. The feeding mechanism 15 is configured. The cloth feeding mechanism 150 has the following structure. More specifically, the first drive motor 151 and the second drive motor 152 formed of a pulse wave motor are arranged symmetrically with respect to the feed rod 61 in the base portion on the side of the longitudinal drum portion. The first drive motor 151 and the second drive motor 152 have individual output shafts 153 and 154 provided to protrude upward from the upper surface of the base portion. The output shaft 153 is provided with a centrifugal member 155 fixed to the output shaft 153, a centrifugal shaft 157 fixed to the centrifugal member 155 which is not concentric with the core of the output shaft ι53, and one of the end points is rotatably supported on the centrifugal shaft. The first coupling mechanism of a chain structure 159 on 157. The output shaft 154 is provided with a second coupling mechanism including a centrifugal member 156, a centrifugal shaft 158, and a chain structural member 160 having the same shape and structure as those of the centrifugal member 155, the centrifugal shaft 157, and the chain structural member 159. The first and second coupling mechanisms are arranged symmetrically with respect to the feed rod 161. The feed rod 161 extends along the surface of the base, so that one end of the base is rotatably coupled and supported at the other end of each of the chain structural members 159 and 160, and a top end is provided on the top of the base portion. A slot-shaped guide hole 丨 62 is used to feed this paper to the size of China National Standard (CNS) A4 (210x297 mm) (Please read the precautions on the back before filling this page) ^ -------- --------- 10

538169 V. Description of the invention (8) The longitudinal direction of the stick is formed in the central part of the feed rod 161. A guide member 163 supported rotatably around the rotation shaft 16 with respect to the base portion is connected to a guide hole 162 that can slide longitudinally. The feed rod 161 rotates around the rotation shaft 163a of the guide member 163, and is guided through the guide member ⑹ and the guide hole 162, so that it can swing the longitudinal direction of the guide hole 162 around the rotation shaft 163A. The cloth tightening mechanism 110 is composed of a feeding plate 用来 for supporting a work object and a handle device 112 for clamping buttons and pressing the work object. The feed plate m is fixed to the top part of the feed rod 161, and is provided with at least one long hole 11118 (Figure 8) and a needle passing through the hole 11118 in a direction perpendicular to the extending direction of the feed rod 161. Piece 41〇. The handle device 112 has a support plate 113 which rotatably supports a base end on the feeding rod 161 so that the top portion thereof can rise freely relative to the feeding rod M, and is provided on the top of the support plate 113 and One-button clamp mechanism for folder and button support The handle device 112 is energized downward through a pop-up lens not shown. With the excitation force, the button mechanism m is pressed to contact the feed plate ⑴, thereby holding the work. Furthermore, the 'handle device 112 is lifted to release the work by resisting the energizing force by a driving device 3 (shown in Fig. 4) using a solenoid s or a motor as a driving source. When the centrifugal members 155 and 156 are rotated around the individual output shafts 153 and 154 by the driving operation of the first driving motor 151 and the second driving motor 152, the chain structural members 159 and 16 supported on the centrifugal shafts 157 and 158 〇 That is, swing and displacement. As a result, the feeding rod 161 moves forward in the longitudinal direction of the guide hole 163. | _ 衣 -------- tr --------- line- (Please read the precautions on the back before (Fill in this page) Printed by the Ministry of Intellectual Property Bureau's Consumer Cooperative

This paper size applies the Chinese National Standard (CNS) A4 specification (2Ι〇χ 297 mm 538169 Λ 7 ------- ^ __ Β7_ V. Description of the invention (9) 1 Move after 1 'and follow it around the axis of rotation 16 It swings horizontally. Correspondingly, the feed plate 111 and the button jaw mechanism Η4 also move in the vertical and horizontal directions. More specifically, the rotation direction and amount of the first drive motor 151 and the second drive motor 152 are controlled separately. As a result, the feeding plate ⑴ and the button holder mechanism 114 were moved to a selectable position on the χ_γ plane. As a result, the feeding plate 111 and the button holder mechanism 114 were supported according to the type of button holder supported on the mouth loss mechanism 114 , Size, and pattern are moved in the XY plane. As a result, the needle piece 41 passes through the thread through hole of the button B in a predetermined order, so that a single cotton continuous stitch is formed to sew the button B to the object to be sewn W Next, the suture cutting device 200 will be described. The suture cutting device 200 is composed of a needle plate 21 and a moving blade as shown in Figs. 2 and 3 (a) and 3 (b). 220, a fixed blade 230, a suture cutting arm 24o, a suture distinguishing member 250, and a guide The member 260 is formed. The needle plate 210 fixed to the base part is opposite to the lower part of the feeding rod ln, and is provided with an oval pin hole 211 formed almost the same as the hole 1UA of the feeding plate U1. Intellectual Property of the Ministry of Economic Affairs The stationary knife 230 having a blade portion 231 printed by the bureau's consumer cooperative is fixed on the lower surface of the needle plate 21, which is opposite to the longitudinal end of the pin hole 211 shown in FIG. 8. The moving knife 220 may Supported rotatably around a rotating shaft 22A fixed to the throat plate 21O. A suture cutting arm 313 (shown in FIG. 4) including a driving device 313 (shown in FIG. 4) including a driving source such as a solenoid or a motor is coupled 24〇 is rotatably coupled to the moving knife member 220. When the suture cutting arm 240 is operated by the driving operation of the driving device 3 丨 2, the moving knife member 22 rotates around the rotating shaft 220 A, and this paper standard applies Chinese National Standard (CNS) Al Specification (210x297 male f) 12 538169 Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs Λ; B7 V. Description of the invention (10) and the blade portion 221 is fixed in a longitudinal direction lower than the pinhole 211 The knife part 231 of the knife 23 is moved. Then, the looped blade portion 221 is captured by catch means 420 and the winding device is connected to the fabric and stitching 42〇 D a, and the sutures

Ta is drawn closer to the fixed blade 230, and further, it is paired with the fixed blade 230 to cut the suture Ta. The driving device 313 for driving the moving blade member 220 can be configured so that the driving device 312 used by the human to raise the handle device 112 to operate the same solenoid operation of the suture cutting device 200, and the sewing device 200 to be sewn The holding of the object ... is then released by the handle device 112. Furthermore, the suture distinguishing member 250 is provided on the lower surface of the movable blade member 22o, and the guide member 260 is provided on the upper surface of the movable blade member 22o, and they are each fixed to the movable blade as shown in FIG. 9. Piece 22o. The suture distinguishing member 250 has the same structure as that of the conventional technician shown in FIG. When the moving blade 220 is moved, the suture distinguishing member 25 processes the suture to grasp only the suture to be cut, and feeds the suture to the blade portion 22 of the moving blade 22 to constitute the guide of the prevention device. The lead member 260 is extended so that a tip guide portion 260A covers the knife portion 221 of the moving knife member 220 as shown in FIGS. 8 and 9. When the moving blade 220 is to be moved toward the fixed blade 23, the suture grasped by the suture discrimination member 250 is guided to the blade portion 221. The top guide portion 260A of the guide member 260 is in contact with the suture above the blade portion 221, thereby preventing the suture from contacting the blade portion 221. The operation of the suture cutting device 200 having such a structure will be described. After the sewing is completed, the thread cutting arm 240 is operated so that the paper size of the moving blade is in accordance with the Chinese National Standard (CNS) A4 (2) 0 X 297 mm) --U -------- I -------- Order · -------- Line ^^ · (Please read the precautions on the back before filling out this page) 13 538169 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Λ; B7 V. Description of the invention (u) 220 starts to rotate. When the moving blade 22 is rotated, the suture distinguishing member 250 guides the suture Ta to be cut to the blade portion 221 of the moving blade 220. The guide member 60 is connected to the suture Ta to prevent the suture 7 ^ from contacting the blade portion 221. Furthermore, by the rotation of the moving blade 220, the guide member 26 guides the suture Ta to the fixed blade 230, and the moving blade 220 is paired with the fixed blade 230 to cut the ki / f suture Ta. After the suture Ta is completely cut, the holding of the article w to be sewn is released through the handle device 112. As described above, the guide member 260 prevents the suture Ta from coming into contact with the knife portion 221 of the moving knife 220, thereby guiding the suture Ta to the fixed knife 23. Therefore, the suture Ta does not contact the blade portion 221 of the moving blade 22 until the blade portion 221 of the moving blade 220 comes into contact with the blade portion 23 of the fixed blade 230, thereby preventing the stitch Ta It is cut only by the moving blade 22o. The sewing machine having the above structure includes a controller 300 for controlling the operation of the feeder 100 and the thread cutting device 2000 as shown in FIG. The controller 300 is used to control the operation of the feeder 100 before the suture cutting device 200 is operated after sewing is completed, thereby changing the position of the button with respect to the fixed blade 230. The controller 300 also uses a controller for the sewing machine to control the sewing operation of the sewing machine. The controller 300 includes a CPU (central processing unit) 301, a ROM (only memory) 302, a RAM (random access memory) 303, and a driving device 304 '305, 306, and 307, Move the pedal 308 in unison, and an operation panel 309. Each part is connected through the system bus to input and output data to each other. According to the control program and the control data stored in the ruler 0% 302 and the signal input through the actuation pedal 308 and the operation panel 309, the CPU 301 controls the entire U --------- i- ------ Order --------- line (Please read the notes on the back before filling out this page) 14 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Λ / '^ --- —— 5. Description of the invention (12) Controls S and performs various data processing. If the RAM is to be used as a storage device for a work area, the storage contents of the ROM 302 or the operation results of the CPU 301 are stored therein. The driving device 304 is connected to a sewing machine motor 31o, 1 to control the driving operation of the sewing machine motor 31 () according to the operation result of the CPU 301. By the driving operation of the sewing and cutting machine motors 3 and 10, the needle 4 is moved vertically and the loop device 420 can be rotated to form a sewing needle. The driving circuit 305 is connected to the driving devices 312 and 313 for driving the suture cutting device 200 and the handle garment 112, and controls the driving operations of the driving devices 312 and 313 based on the operation result of the mouthpiece 300. ... The driving circuit 306 is connected to the first driving motor 151, and controls the driving operation of the first driving motor 151 according to the operation result of the CPU 301. The driving private circuit 307 is connected to the second driving motor 152, and controls the driving operation of the first driving motor 152 according to the operation of the CPU 300. The actuation pedal 308 is depressed to output an operation signal to the cpu 300, thereby operating the sewing machine motor 3 1 0. The operation panel 309 outputs an operation signal to the CPU 301 through the operation of a switch. Information on sewing can be entered from the operation panel 309, and 301 performs operations based on this information. The operation panel 3009 can set the distance L between the _sewing pattern and the knotted portion formed in the last needle position and the fixed blade 23o. Fig. 5 shows an example of the operation panel 309. As shown in FIG. 5, the stitch pattern of button B to be sewn to the object W to be sewn can be set by operating the selection switch 321 of the operation panel 309. Select by operation ^. Order --------- line · (Please read the precautions on the back before filling this page)

538169 five Λ7-~~ ^ _B7_________ Description of the invention (13) OFF 321 ′ An LED 322 corresponding to the sewing pattern is lit. In the embodiment, three sewing patterns such as an X shape or a parallel shape for a four-hole button and a sewing pattern for a two-hole button may be selected. When the operation panel 309 is operated to select a sewing pattern, the CPU 301 reads a sewing program corresponding to the sewing pattern from the ROM 302 according to an operation signal sent from the work panel 309. According to the sewing program, the sewing machine motor 310, the first drive motor 1 51, and the second drive motor 15 2 are controlled to sew Jie B to the object w to be sewn in a selected sewing pattern. Furthermore, a 'selection switch 323 is provided for setting the distance between the knotted portion formed in the last needle position and the fixed blade 23 [. In an embodiment, this distance can be set in five stages: "far distance ,,", "slightly farther,", "normal,", "close,", "close," and so on. According to the individual stages, LED 324 is set .Every time the k select switch 323 is operated, the selection is changed. Correspondingly, the led 324 corresponding to the distance is redundant. Furthermore, the distance between the knotted part in each stage and the fixed blade "ο The above data is stored as a distance (quantity value) 'in the ROM 302 and the CPU 301 reads the distance data from the ROM 30 through the selection of the selection switch 323. According to the distance data, the first driving motor 151 and the second driving motor 152 are controlled to adjust the center position of the button B with respect to the fixed blade 230. The data on the distance between the knotted part in each stage and the blade part 231 of the fixed blade 230 is the same in any sewing pattern. Moreover, in the embodiment, each stage can be finely adjusted. More specifically, the distance data pre-stored in the ROM 302 is corrected by operating one of the fine adjustment switches 325 of the operation panel 309. A correction value L1 to be executed by the fine adjustment switch 325 is displayed on a display section 326. (Please read the notes on the back before filling out this page) Order --------- Printed by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 16 538169 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Λ; B7 5. Description of the Invention (i) The operation panel 309 includes a setting switch 328. With the operation of the setting switch 328, the selection of the setting state through the pattern selection switch 321, the distance selection switch 323, and the fine adjustment switch 325 is output to the CPU 301. Furthermore, the operation panel 309 includes a reset switch 327. By operating the reset switch 327, the data set by the pattern selection switch 321, the distance selection switch 323, and the fine adjustment switch 325 can be reset or set to a preset value. Next, the flow of sewing operation by the one-needle continuous stitch sewing machine according to the embodiment will be described with reference to the flowchart of FIG. 6. In a setting state in which the setting switch 328 is operated (step s 1), when the reset switch 327 is activated, a preset value determined in the factory transportation stage is set (steps S2 to S3). When the pattern selection switch 321 is operated (step 54), the sewing pattern is selected and set according to the button hole of button B (step 55). Further, when the distance selection switch 323 is operated (step S6), the distance L between the knotted portion at the last needle position and the blade portion 23 of the fixed blade 230 is selected and set (step S7). Furthermore, when the fine adjustment switch 325 is operated when necessary (step S8), the distance L (between the knotted portion and the blade portion 23 of the fixed blade 230) is corrected (L soil L1) according to the set value ( Step S9). Various setting values are output to the CPU 301. After being set in this way or when the setting switch 328 is not operated, if a start switch (not shown) is operated (step sio), a sewing program is activated to perform the sewing operation (step su). In the sewing operation, when the sewing machine motor 310, the first driving motor 151, and the second driving motor 152 are controlled, the fabric pressing mechanism 110 is moved in the XY direction to pass through the selected sewing pattern in the holes B1 and B2 of the button B A needle position is formed on it. As a result, a predetermined number of continuous cotton needles of a single cotton yarn are formed. The paper size is in accordance with the Chinese National Standard (CNS) Al specification (210 X 297 mm) --Γ -------. 1 -------- Order --------- line ^^ ·-· (Please read the notes on the back before filling out this page) 17 ⑽169 ⑽169 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs? ^ ----- ------ B7______ 5. Description of the invention (15) and agglomeration for the last needle position. When Tian used the last needle position to knot during the stitching process, the lower needle position signal was generated from the well-known needle position detection device 314, and the rotation direction and rotation angle of the first drive motor 151 and the second drive motor 152 were controlled. To perform cloth feeding with a distance L. As a result, the position of the button is adjusted relative to the fixed blade 230 (step S12). Next, the driving device 313 is operated (step S13) so that the moving blade member 22 of the suture cutting device 200 starts to move. As a result, the guide member 26 holds the suture D while moving the knife 22 and grasps the suture Ta, and draws the caught suture ^ closer to the fixed knife 23. Further, the movable blade member 220 is moved so that the blade portion 22m of the movable blade member 220 matches the blade portion 231 of the fixed blade member 230. Therefore, the sutures are cut off. Then 'operate the driving device 3 12 to raise the handle device 112 (step S14). This embodiment has a first feature in that the button B is moved relative to the fixed blade 230 through the feeder 100, and its position is at When the operation of sewing the object W to be sewn onto the button B is completed, strictly speaking, it is adjusted before the moving blade 220 is operated after the final needle position is formed. For example, at step%, "approach" is set, and the feeder 100 brings the button B close to the fixed blade 230 after the sewing is completed. As a result, the knotted portion and the fixed blade are cut during the suture cutting operation. The distance L between 230 can be reduced. Therefore, the length of the remaining suture Ta that is cut and connected from the one-line through hole B1 of the button 6 is reduced. Accordingly, the agglomerated outer shape can be strengthened, and the button can be appropriately adjusted. Sew on the clothes when sewing. In addition, make the knotted part for the last needle position close to the fixed knife. As a result, when the moving knife 220 moves, the tension is not applied to the suture Ta. Even if the paper size is applicable to the country of China Standard (CNS) Ai specification (210 X 297 mm) ",-^^ 衣 -------- Order --------- line (Please read the precautions on the back before filling in this Page) 18 538169 V. Description of the invention (16 y Printed by the Consumers' Cooperative of the Ministry of Economic Affairs and Intellectual Property of the Ministry of Commerce. The guide member 260 is not provided, and the suture Ta can be pulled close to the knife part of the moving knife 22 To prevent the suture from being cut only by the moving blade 22. Based on this, it can prevent the deformation of the suture beyond the cut portion. For example, '当 在' At step S6, set "Long distance," at the end of the sewing process. The distance from the fixed blade 230 is maintained. As a result, the length can be increased. When the length of the remaining suture is increased after cutting the suture, The agglomerates are difficult to untie. For example, it may be possible to properly sew Niuzhi to the appearance of work clothes. As described above, adjust the position of Niuzhi B relative to the fixed knife according to the sewing pattern. As a result, cut at the suture During the cutting, the distance between the knots K # of a sewing needle 23 and the knife portion 231 of the knife 23 [is changed. More specifically & made 300 to drive the feeder ⑽ after completing the sewing, so that according to the vStep S4 ^ The stitching pattern is determined to obtain the distance selected in step%. Based on this, it is possible to change the degree of residual stitching after cutting the stitches. As a result, it is possible to sew the slit according to the purpose of the work object. ^ It is used to detect the position of the lower needle through the last needle position. The distance between the knotting portion of the cross stitch and the blade portion 231 of the fixed blade 23 is activated and the The needle is raised to an upper position and as in + In the case of the previous execution, the -cycle time can be shortened. Furthermore, a movement start time can be set so that the moving part 21 〇 knife 邛 6 211 or the top guide part 260A of the guide member 260 and the wire The movement of the button is completed before the connection. This embodiment has a second feature, which is to improve the stitching phase by making a change from the sewing pattern according to the sewing pattern — 1 ^. -------- tTi --- ---- 线 # (Please read the precautions on the back before filling this page) Specifications of this paper Λ1 (2) 0 X 297 mm 19 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ° i () 9 V. Description of the invention (17) For the fixed blade 230, adjust the position of the button, so that the distance L · between the knotted portion of the suture for the last needle position and the blade portion 231 of the fixed blade 230 is constant. . The position of the button is adjusted relative to the fixed blade 230 according to the selected sewing pattern, so that the distance L selected in step S6 is obtained. As a result, even if any sewing pattern is selected, the distance between the knot portion of the suture for the last needle position and the blade portion 231 of the fixed blade 230 can always be set to the distance l selected in step S6. For example, 'When a sewing pattern is selected to form two stitches formed by passing the needle 4 through the thread through holes B 1 and B 2 of the four-hole female buckle B, the two stitches intersect each other at the center between the thread through holes bi and B 2 A parallel sewing needle is selected in step%. The distance L between the knotted portion of the sewing needle and the blade portion 231 of the fixed blade 2 3 0 is controlled to obtain the value stored in the ruler 0] ^ 3 02 and " Close to, corresponding distance data. On the other hand, when the two stitches formed by passing the needle member 41 through the through holes 扪 and] ^ of the four-hole button B are selected, on the center of the button 8 each other When crossing one of the X-shaped sewing patterns and selecting "close" in step%, the distance L is controlled to obtain the distance data corresponding to "close," stored in ROM 300. The data on the distance between the knotted part of the needle and the blade part 231 of the fixed blade 23 in each stage is the same in any sewing pattern. Therefore, even if the arbitrary-sewing pattern is selected remotely, the distance L can always be set to ten mutual determinations. Based on this, even if the initial stitch pattern is selected, the length of the remaining stitches is always set to be strange. This embodiment has a third feature, that is, by finely adjusting the distance between the knotted portion of the needle and the blade portion 231 of the fixed blade 230 through the fine adjustment switch 325 of the operation panel 309 to correct it ( l ± li) s8 This paper size is applicable to China National Standard (CNS) y'Vl specification (210 X 297 public) —--------- i -------- Order ---- ----- Line · * (Please read the notes on the back before filling out this page) 20 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 538169 Λ /

—------ W V. Description of the invention (18) The distance L to be selected. Therefore, by correcting the distance l between the knot portion of the needle and the blade portion 231 of the fixed blade 230, the position of the knot portion can be changed even if the size or type of the button is changed. The distance l from the blade portion 23 1 of the fixed blade 230 can still be adjusted appropriately. In an embodiment, it is of course possible to change a specific detail structure without departing from its scope. If the feeding plate m and the handle device 112 are moved longitudinally and laterally so as to be movable in the X-Y direction, the cloth feeding mechanism 15 is not limited to the above structure. For example, it is also possible to move the feed plate 111 and the handle device 112 longitudinally by one of the drive motors, and to move the feed plate 111 and the handle device 112 laterally by other drive motors. When the distance L between the knot portion of the needle and the blade portion 231 of the fixed blade 230 is set by the selection of five stages in the embodiment, a quantity value can be directly input and set from the operation panel. [Effect of the present invention] As described above, according to the first aspect of the present invention, the length of the residual suture obtained after the suture is cut can be changed to a trade-off. When the long-term production of residual sutures is increased after the sutures are cut, a lump is difficult to untie, making buttons suitable for sewing to work clothes, for example. On the other hand, when the length of the residual suture is reduced after the suture is cut, the agglomerate has a good shape, so that Newzhi can properly sew to fashionable clothes. Therefore, the sewing machine to which the thread cutting device according to the present invention is applied can sew buttons to the work according to the purpose of use of the work. In addition, the knotted portion formed through the last needle position can be approximated to the solid paper. The Chinese National Standard (CNS) Al specification (210 X 297 mm) can be applied. I I ----- ^ ----- ---- (Please read the notes on the back before filling this page) 21 538169 U1 V. Description of the invention (19) Knife. According to this, it is possible to prevent the suture from being cut only by the moving blade when the suture is drawn close through the moving blade. As a result, it is possible to prevent deterioration of the suture cut portion. Furthermore, according to the second aspect of the present invention, the distance between the knotted portion of the suture for the last needle position and the blade portion of the fixed blade can always be set constant according to the sewing pattern. As a result, the length of the residual suture can be set to be constant in any stitch pattern. Furthermore, according to the third aspect of the present invention, when the length of the residual suture is increased after the suture is cut off, a clump is difficult to untie, making New Zealand suitable for sewing to work clothes, for example. On the other hand, when the length of the residual suture is reduced after the suture is cut, the agglomerates have a good shape ' so that the narration can be properly sewn to clothing, for example. Therefore, the sewing machine to which the suture cutting device according to the present invention is applied can sew Niu Zhi to the work according to the purpose of use of the work. Furthermore, according to the fourth aspect of the present invention, even if the position of the knotted portion of the suture with respect to the last needle position is changed, for example, the size or type of New Zealand is changed, the distance between the knotted portion and the fixed blade can be changed. Adjust appropriately. In addition, according to the fifth aspect of the present invention, it is possible to prevent the sutures from being cut by the moving blade only. Therefore, it is possible to prevent the suture from being cut when the suture is pulled closer. As a result, the outer shape of the cut portion of the suture can be prevented from being deteriorated. △ According to the sixth aspect of the present invention, the guide portion draws the suture close. As a result, it is possible to prevent the blade portion of the moving blade from coming into contact with the suture. According to this, it is possible to prevent the sutures from being moved only when the = Erho: moving blades are paired with each other. When the cutter 1 is drawn closer, the sutures are prevented from being cut. Therefore, it is possible to prevent the appearance of the cut-off portion of the suture thread from being degraded. Fig. 1 is a perspective view showing a feeder and an external shape according to the embodiment; Fig. 1 is a perspective view showing a main part of a suture cutting device; Fig. 3 and Fig. 3 are a view showing suture cutting A perspective view of the main part of the device; FIG. 4 is a block diagram showing the controller of the sewing machine according to the embodiment; a plan view showing the arrangement on the sewing board according to the embodiment; A process chart showing the operation of a sewing machine according to the embodiment. The sewing machine is cut off. Figures 7 (a) and 7 (b) printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs show a conventional cutting device. The structure diagram; '' The two diagrams show the state of a suture cut and one stitched according to an embodiment. A structural view of a suture cutting device in a wound; and FIG. 9 is a front view showing a suture cut according to the embodiment. Thread in the sewing machine on the main part of the garment ^ I -------- ^ --------- (Please read the note on the back first and fill in this page) This paper ruler ^ 23 538169 B7_ 5. Description of the invention (21) Comparison of component numbers 110 ... Cloth pressing mechanism (holding device) 150 ... Cloth feeding mechanism (feeding device) 200 ... Suture cutting device 220 ... Moving knife 221, 231 ... blade Section 230 ... Fixed blade 260 ... Guiding member (prevention device) 300 ... Controller (control device) 309 ... Operation panel (calibration input device) 410 ... Needle (please read the precautions on the back before filling this page) Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper size applies to Chinese National Standards (CNS) / \ 1 specifications (2) 0 X 297 mm) 24

Claims (1)

538169 A8 B8 C8 D8 538169 A8 B8 C8 D8 The scope of the patent application further includes a prevention device provided on the moving blade and used to prevent the suture from contacting the blade portion of the moving blade until the fixed blade is matched with the moving blade. 6. The button sewing machine according to item 5 of the scope of patent application, wherein the preventing device has a guide portion in front of the cutting edge portion of the moving blade in the moving direction of the moving blade, and the guide A part is connected to the suture and guides the suture to the fixed blade. (Please read the notes on the back before filling this page} ϋ nnnnnn = -OJI n ϋ n ϋ I Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy & Paper size applies Chinese National Standard (CNS) A4 (210 X 297 Mm)