TW202331043A - Sewing machine and sewing method capable of fixing non-suture thread body to an object to be sewn through suture thread - Google Patents

Abstract

The present invention relates to a sewing machine. The sewing machine includes: a machine body and a displacement device installed on the machine body. The displacement device includes one or a plurality of thread outlets corresponding to one or a plurality of sewing needles of the sewing machine, and each thread outlet is provided for a thread body to pass through. When the sewing machine is in operation, the displacement device drives the thread outlet to reciprocate on both sides of the sewing needle. As a result, at least one suture thread is sewn on an object to be sewn by using the sewing machine, and one or a plurality of thread bodies pass through the thread outlet, and are reciprocally routed on both sides of the sewing needle, so that the suture thread is used to fix the thread body on the object to be sewn. The present invention also relates to a sewing method for fixing a thread body by using a suture thread.

Description

Sewing machines and sewing methods

The present invention is related to a sewing machine, in detail, it refers to a sewing machine providing an innovative sewing structure and an innovative sewing method.

Existing sewing machines all pass through the cloth (cloth) by car needles, and the suture is sewn on the cloth, and there is no sewing machine that can fix the thread body other than the suture on the cloth.

One of the purposes of the present invention is to provide a sewing machine with an innovative structure, which can fix the thread body other than the suture thread (that is, the thread body other than the suture thread) on an object to be sewn through the suture thread.

One of the objectives of the present invention is to provide the above sewing machine, so that the thread body can be fixed on the object to be sewn without passing through the object to be sewn.

One of the objectives of the present invention is to provide a sewing method for fixing the thread body other than the suture thread (that is, the thread body other than the suture thread).

The sewing machine provided by the present invention includes: A machine body, equipped with at least one needle bar, the bottom end of the needle bar has at least one bur; a displacement device, mounted on the body, and has at least one wire outlet, corresponding to the bur, for at least one wire body to pass through the wire outlet; the displacement device drives the wire outlet Move back and forth on both sides of the bur.

With the above structure, at least one suture is sewn on an object to be sewn by the needle; at least one thread is passed through the thread outlet, and the displacement device reciprocally routes the thread on the object to be sewn. The two sides of the needle, during the sewing process, the suture can fix the thread body on the object to be sewn.

The fixed thread body does not pass through the object to be sewn, which can keep the thread body intact and avoid damage to the thread body.

In one embodiment, the number of sewing strokes of the needle is proportional to the number of displacement strokes of the thread outlet, and the ratio of the number of sewing strokes of the needle to the displacement stroke of the thread outlet is not less than 2:1, preferably, between 2:1 and 10:1.

In one embodiment, the displacement device has a main shaft. When the main shaft rotates, the displacement device generates a reciprocating motion to drive the wire outlet to reciprocate.

In one embodiment, the sewing machine has a transmission shaft, which drives the main shaft of the displacement device to rotate. When the transmission shaft rotates one revolution, the needle completes a sewing stroke; when the main shaft rotates one revolution, , the wire outlet completes a displacement stroke; the ratio of the speed of the transmission shaft to the speed of the main shaft is not less than 2:1, preferably between 2:1 and 10:1.

In one embodiment, the displacement device includes: a main shaft, a reciprocating driving member and a reciprocating moving member, the main shaft is rotatably pivoted on the body; the reciprocating driving member is connected to the main shaft, and when the main shaft rotates, Drive the reciprocating drive member to reciprocate between a first position and a second position; the outlet port is located on the reciprocating member; the reciprocating drive member drives the reciprocating member between an initial position and an end position Move back and forth between them, so that the outlet port moves back and forth on both sides of the bur.

In one embodiment, the reciprocating drive member is an eccentric wheel connecting rod, which has an eccentric wheel end and a connecting rod end, the eccentric wheel end is installed on the main shaft, and the eccentric wheel connecting rod is connected to the main shaft reciprocating radially, the connecting rod end drives the reciprocating member to displace.

In one embodiment, the reciprocating member is a rocker arm with a swing fulcrum; the cable outlet is set on the rocker arm; the eccentric wheel link drives the rocker arm to reciprocate between the initial position and the end position. swing between positions.

In one embodiment, it includes a rotating shaft, which is rotatably pivoted on the body; a rocker arm is connected to the rotating shaft; when the main shaft of the displacement device rotates, it drives the rotating shaft to rotate, and drives the rocking arm to move backward; The outlet is located on the rocker arm.

In one embodiment, a reciprocating driving member is included between the main shaft and the rotating shaft. When the main shaft rotates, the reciprocating driving member is driven to reciprocate between a first position and a second position. The driving member drives the rotating shaft to reciprocate between clockwise and counterclockwise within an angle range.

In an embodiment, the displacement device further includes: a linkage mechanism disposed between the reciprocating driving member and the reciprocating moving member, and the reciprocating driving member drives the reciprocating moving member through the link mechanism.

In one embodiment, the linkage mechanism includes: a rotating member and a connecting rod, the rotating member has a pivot point; the connecting rod end of the eccentric wheel connecting rod is connected to the rotating member; one end of the connecting rod is connected to the The other end of the rotating part is connected to the rocker arm; the eccentric wheel link drives the rocker arm through the linkage mechanism.

In one embodiment, the sewing machine has a transmission mechanism, and the transmission mechanism has a transmission shaft; the transmission shaft drives the main shaft through a linkage group.

A kind of sewing method provided by the present invention comprises: Sew at least one suture on an object to be sewn with at least one needle of a sewing machine, and each suture sews a plurality of seam segments; During the process of sewing the suture with the bur, at least one thread is reciprocally routed on both sides of the bur, and the thread is routed from the first side of the bur to the After the second side moves, a segment of the suture is pressed against the object to be sewn; after the thread moves from the second side of the needle to the first side, it is Another seam segment of the above-mentioned suture is pressed on the object to be sewn. Thereby, when the sewing machine performs sewing operation, the sewing thread fixes the thread body to the object to be sewn.

In the above sewing method, the sewing machine is equipped with a displacement device, and the displacement device drives the thread body to reciprocate on both sides of the needle.

Fig. 1 and Fig. 2 show the sewing machine 10 of the first preferred embodiment of the present invention, please refer to Fig. 8, this sewing machine 10 can sew a sewing thread 82 and a line body 84 on a thing to be sewn, such as cloth 80, Fabric, leather, plastics, paper or the like, the thread body 84 is fixed on the object to be sewn by the suture 82, and does not pass through the object to be sewn.

Please refer to Fig. 1 to Fig. 3, this sewing machine 10 has a body 11, and the machine head 12 of body 11 is equipped with a needle bar 13 and a presser foot bar 15, and the bottom end of this needle bar 13 is equipped with a bur 14, and the A presser foot 16 is installed at the bottom end of the presser foot bar 15 . The machine plate 17 of the sewing machine 10 is provided with a needle hole 18, so that the needle 14 can extend into the needle hole 18, and a feed tooth (not shown) is arranged below the needle hole 18. The sewing machine defines a sewing direction D at the needle hole 18. The sewing direction D is the reciprocating direction of the feed teeth. The feed teeth continuously push the object to be sewn to move along the sewing direction D. The body 11 is provided with many mechanisms, interlocking with each other. There is a transmission mechanism in the body 11. The transmission mechanism includes a transmission shaft 19 located on the body 11. The transmission shaft 19 is driven by a motor or with a belt or a chain. The transmission mechanism drives all the mechanisms of the sewing machine 10 to actuate, including making the needle bar 13 reciprocally move up and down to perform sewing operations. Above-mentioned structure is the existing structure of sewing machine, does not allow repeating it. The structure of the sewing machine 10 below the machine plate 17 is also omitted in this specification. The structure of other positions of sewing machine has nothing to do with the present invention, also does not repeat them.

The sewing machine 10 of the present invention further includes: a displacement device 30 and a thread outlet 54 disposed on the displacement device 30 , the thread outlet 54 is used to guide the thread body 84 .

Referring to FIGS. 3 to 5 , the displacement device 30 includes: a main shaft 35 , a reciprocating driving member ( 40 ) and a reciprocating moving member ( 50 ).

A bracket 32 is fixed on one side of the body 11; the main shaft 35 is rotatably pivoted on the bracket 32, and can drive the reciprocating drive member (40) to move. The main shaft 35 can be driven by another transmission mechanism, such as an electric motor, or the main shaft can be driven by manpower through a pulley. In this embodiment, the main shaft 35 is driven by the transmission shaft 19 of the sewing machine 10 itself. Please refer to FIG. The linkage group 20 has a first linkage shaft 21, which is rotatably mounted on two bearings 211, and the rear end of the first linkage shaft 21 is connected with the pulley 191 of the transmission shaft 19 by a pulley 22 and a belt 23; One end of a second interlocking shaft 24 is connected to one end of the first interlocking shaft 21 by a universal joint 25 , and the other end is connected to one end of the main shaft 35 by a universal joint 26 . By means of the linkage group 20, when the transmission shaft 19 rotates, it can drive the main shaft 35 to rotate.

The reciprocating driving member is connected to the main shaft 35 , and the main shaft 35 can drive the reciprocating driving member to reciprocate between a first position and a second position. The reciprocating driving member can be an eccentric member or a cam member. When the main shaft 35 rotates, the reciprocating driving member reciprocates in the radial direction of the main shaft 35, and then reciprocally displaces between the first position and the second position. . The reciprocating driving member of this preferred embodiment is an eccentric wheel connecting rod 40, and its two ends are respectively an eccentric wheel end and a connecting rod end 401. The eccentric wheel end is installed on the main shaft 35, and its connecting rod end 401 It can move back and forth between the first position and the second position. Specifically, the eccentric wheel link 40 is composed of an eccentric wheel 42 and a connecting rod 44, the eccentric wheel 42 is fixed on the main shaft 35; one end of the connecting rod 44 is sleeved on the On the eccentric wheel 42 , when the eccentric wheel 42 rotates, the end of the connecting rod 44 (ie the connecting rod end 401 ) reciprocates between the first position and the second position.

A base 36 is mounted on the body 11 in a suitable manner, for example, an arm extends from the bracket 32 , and the base 36 is mounted on the arm so that the base 36 becomes a part of the bracket 32 . The support 36 of this preferred embodiment clamps the presser bar 15 and is supported by the presser bar 15 . The bracket 32 and the support 36 can be made into a part of the machine body 11 for installation of the displacement device 30 .

The reciprocating member can be designed as linear displacement or swing displacement. The reciprocating moving member of the present embodiment is a rocker arm 50, one end of the rocker arm 50 is a pivot end 52, which is rotatably pivoted on the support 36, and the rocker arm 50 uses the pivot end 52 as a swing fulcrum, and can be rotated at It swings back and forth between an initial position and an end position. A wire outlet 54 is located at one end of the rocker arm 50 and is adjacent to the bur 14 . The connecting rod end 401 of the eccentric wheel connecting rod 40 can be directly connected to the rocker arm 50 to drive the rocker arm 50 to move. Please refer to Fig. 4, when the eccentric wheel connecting rod 40 is located at the first position, the tether drives the rocker arm 50 to move to the initial position, so that the wire outlet 54 is located at the side of the bur 14; the eccentric wheel connecting rod When 40 is in the second position, the tie drives the rocker arm 50 to move to the end position, so that the wire outlet 54 is located on the other side of the bur 14. Therefore, when the main shaft 35 rotates, the reciprocating drive member (40) drives The reciprocating member (50) is actuated to make the thread outlet 54 reciprocate on both sides of the needle 14.

Please refer to Fig. 4, where the needle 14 is located in the sewing direction D to form a virtual line X, the two sides of the needle 14 are the two sides of the virtual line X, and the thread outlet of the rocker arm 50 54 moves back and forth on both sides of the needle 14, which means that the wire outlet 54 moves back and forth on both sides of the imaginary line X. The line connecting the position P on one side of the wire outlet 54 and the position Q on the other side of the needle 14 is not parallel to the virtual line X. Preferably, the line connecting the positions P and Q is perpendicular or approximately perpendicular to the imaginary line X.

Referring to Fig. 5, the rocker arm 50 has a shaft 55 and a suspension rod 57, the pivoting end 52 is located at one end of the shaft 55; an elongated slot 56 is located at the shaft 55; one end of the suspension rod 57 A threaded element 571 is connected to the elongated slot 56 of the rod body 55 and can be fixed at different positions of the elongated slot 56 to adjust the swing displacement of the suspension rod 57 . A hollow tube body 58 is fixed on the free end 572 of the suspension rod 57 , and the free end (bottom end) of the tube body 58 forms the wire outlet 54 . Please refer to FIG. 2 , the aforementioned wire body 84 can pass through one end (top) of the tube body 58 and pass through the wire outlet 54 . Fig. 13 shows another kind of implementation structure of outlet port 54, and the free end 572 of this suspension bar 57 is provided with a hole, and this hole forms described outlet port 54, and line body 84 passes through this outlet port 54, from this One end of the wire outlet 54 passes in and passes out from the other end.

In this preferred embodiment, the eccentric wheel link 40 drives the rocker arm 50 through the linkage mechanism 70. The linkage mechanism 70 includes a rotating member 71 and a connecting rod 76. The central part of the rotating member 71 is connected with a The pivot 72 is pivotally installed on the arm 34 of the bracket 32 , so that the rotating member has a fulcrum. When the rotating member 71 rotates, its two ends 73 , 74 can produce opposite displacements. The connecting rod end 401 of the eccentric shaft connecting rod 40 is pivotally connected to the first end 73 of the rotating member 71 . One end of the connecting rod 76 is connected to the second end 74 of the rotating member 71 , and the other end is connected to the shaft 55 of the rocker arm 50 . Thereby, the eccentric wheel connecting rod 40 drives the rocker arm 50 to move forward through the linkage mechanism 70 .

Please refer to Fig. 2, when the sewing machine 10 is in use, the suture thread 82 is passed through the needle 14, and the thread body 84 passes through the thread outlet 58 of the rocker arm 50, and the thread body 84 can be reflective Yarns, luminous yarns, decorative yarns, conductive yarns, metallic yarns, or other threads with specific properties or functions, or various threads, fibers, or yarns.

Taking the sewing thread 82 and the thread body 84 on a cloth 80 as an example, when the sewing machine 10 is operated, the actions shown in Fig. 4 and Fig. 5 to Fig. 7 will be produced. Please refer to Fig. 5, which shows that the eccentric wheel connecting rod 40 is in the first position of its reciprocating stroke, and the rocker arm 50 is in the initial position of its reciprocating stroke. The maximum eccentricity of the member 40 is located on the right side, and its connecting rod end 401 is located at the dead point on the far right side of the stroke. The thread outlet 54 of the arm is in the initial position, on one side (the first side) of the needle 14, and the needle bar 13 and the needle 14 are at the top dead center of the sewing stroke.

When the sewing machine 10 is running, its transmission shaft 19 drives the displacement device 30 through the linkage group 20. At this time, the linkage group 20 drives the main shaft 35 to rotate clockwise. Please refer to FIG. 6, which shows the main shaft 35 and the eccentric wheel The connecting rod part 40 rotates 90 degrees clockwise. At this time, the eccentric shaft connecting rod part 40 and its connecting rod end 401 will be displaced halfway to the left. The two ends 74 drive the connecting rod 76 and the rocker arm 50 to move halfway to the right, the needle bar 13 and the bur 14 move down to the bottom dead center of the sewing stroke, and the bur 14 carries the suture 82 through 80 of the fabric. At the same time, the wire outlet 54 moves to the middle position shown at point B in FIG. 4 , which is half of its stroke.

When the transmission shaft 19 drives the main shaft 35 to continue to rotate 90 degrees clockwise to the position shown in FIG. The rotating part 71 rotates counterclockwise to the dead point of its rotation stroke, and the second end 74 of the rotating part 71 drives the connecting rod 76 and the rocker arm 50 to move rightward to the rightmost dead point of its stroke, that is, the rocker When the arm 50 swings to the end position, the wire outlet 54 is displaced to the other side (the second side) of the needle 14, driving the thread body 84 to the other side (the second side) of the needle 14, and at the same time, the Needle bar 13 and this car needle 14 return to the top dead center of its sewing stroke, and this car needle 14 wears cloth 80 upwards with suture 82, and car needle 14 completes a car sewing stroke.

When the main shaft 35 rotates 180 degrees clockwise from the position in FIG. 7, it will return to the position in FIG. Rotate so that the second end 74 of the rotating member 70 drives the connecting rod 76 and the rocker arm 50 to move leftward to the leftmost dead point of its displacement stroke, the rocker arm 50 returns to the initial position, and the outlet port 54 Return to one side (first side) of the bur 14, and drive the thread body 84 to move from the other side (second side) of the bur 14 to one side (first side) of the bur 14, and at the same time, the The needle bar 13 and the bur 14 complete a sewing stroke again, that is, the bur 14 passes the cloth 80 downward with the suture 82 , and passes through the cloth 80 upward.

In this way, when the sewing machine 10 is in operation, the needle bar 13 and the needle 14 repeat their sewing strokes to sew the suture 82 on the fabric 80. At the same time, the displacement device 30 moves back and forth to drive the thread outlet 54 moves back and forth on both sides of the needle 14, and the thread body 84 is reciprocally routed on the two sides of the needle 14, and is pressed by the suture 82 to complete the sewing of the suture 82 and the thread body 84 on the Sewing operation of objects to be sewn.

In the above-mentioned actuation process, the needle 14 completes a second sewing stroke, and the rocker arm 50 and its thread outlet 54 complete a displacement stroke, and the thread outlet is displaced from the first side of the needle 14 to the sewing machine. the second side of the needle, and then reset to the first side of the needle. Therefore, the ratio of the sewing stroke of the bur 14 to the displacement stroke of the rocker arm 50 is 2:1.

FIG. 8 shows a top view of the sewing machine 10 sewing the suture 82 and the thread body 84 on the fabric 80 , and the suture 82 fixes the thread body 84 .

Please refer to FIG. 9 , during the sewing process, the fabric 80 is continuously fed along the sewing direction D, and the needle of the sewing machine 10 pierces the fabric 80 at a lower needle position T, driving the suture 82 from the front side of the fabric 80 801 penetrates to the bottom surface 802 of the cloth, and then the needle 14 pulls the suture 82 back up to the front 801 of the cloth, completing a sewing stroke. In one sewing stroke, the suture 82 produces a turn at the bottom surface 802 of the cloth 80, and the turn forms a cross portion 821, which crosses a bottom line 86 (the bottom line is not the subject of the present invention, and will not be described in detail). When performing the next sewing stroke, the fabric 80 moves a certain distance on the sewing machine 10, and the needle 14 performs another sewing stroke at another lower needle position T, driving the suture thread 82 to penetrate the fabric again The bottom surface 802 of 80, and then drive the suture 82 to pass through the front 801 of the cloth 80, so that the sewing stroke is repeated, and in each sewing stroke, the suture 82 is formed on the bottom surface of the cloth 80. The cross portion 821 makes the bottom thread 86 and the suture 82 hook and pull each other. At the same time, on the front surface 801 of the cloth 80, the seam 82 forms a seam section 83 at every two adjacent needle positions T, and the seam sections 83 are arranged along the sewing direction D of the cloth 80. Usually, the The equal slit segments 83 are of the same length and arranged at equal intervals. The slit segments 83 shown in the drawings are arranged in a straight line as an example, but not limited thereto. For example, the slit segments 83 can also be arranged in an arc.

During the sewing process, the suture 82 and the thread body 84 are continuously released, the thread body 84 is pressed by the seam segment 83 of the suture 82 and fixed on the front surface 801 of the cloth 80, and the thread body 84 is threaded sequentially. Wrap around the slits 83 and be pressed by the slits 83.

Fig. 10 shows a schematic diagram of the sewing process of the suture 82 and the thread body 84. As shown in Fig. 10A, during sewing, the fabric 80 moves to the sewing direction D, and the needle 14 performs a sewing stroke at the lower needle position T1. The displacement device 30 drives the thread outlet 54 to move from the initial position to the end position, so that the thread body 84 is released from the first side (eg, the right side R) to the second side (eg, the left side L) of the bur. Then, as shown in FIG. 10B , the needle performs another turning stroke at another lower needle position T2, and produces a seam segment 83a between the lower needle positions T1 and T2 to press the thread body 84. After that, the The displacement device 30 drives the wire outlet 54 to move from the end position to the initial position, and then pulls the wire body 84 from the second side (left side L) to the first side (right side R), and then as shown in FIG. 10C , the car The needle performs another sewing stroke at the next lower needle position T3, so that the suture 82 produces another seam segment 83b, which presses the thread body 84, and repeats this process to complete the sewing structure 90 shown in Figure 8 The suture 82 and the thread body 84 are sewn on the front surface of the fabric 80, and the thread body 84 reciprocates through the seam sections 83 on the left and right sides of the suture 82.

In the sewing structure 90 shown in FIG. 8 , the ratio of the number of sewing strokes of the bur 14 to the number of displacement strokes of the rocker arm 50 is 2:1 (for example, the speed ratio of the transmission shaft 19 and the main shaft 35 is 2:1. 1), the thread body 84 passes through adjacent slit segments 83 sequentially and regularly, and is pressed by each slit segment 83 .

Changing the rotational speed ratio of the transmission shaft 19 and the main shaft 35 can change the proportional relationship between the sewing stroke of the bur 14 and the displacement stroke of the rocker arm 50. For example, adjusting the rotational speed ratio to 3:1 or 4:1 can Form the sewing structure 91 shown in FIG. 11 , the thread body 84 does not pass through all the slit segments 83 , but regularly passes through the separated slit segments 83 , and is pressed by the separated slit segments 83 . The slit segments 83c pressing the thread body 84 are spaced apart, and the slit segment 83d between the slit segments 83c does not press the thread body 84 . The two adjacent slit segments 83c that hold down the thread body 84 may be separated by one to several slit segments 83d that do not hold down the thread body. Fig. 11 shows that two adjacent slit segments 83c that press down on the thread body 84 are separated by a slit segment 83d that does not hold down the thread body. The ratio of the sewing stroke of the bur 14 to the displacement stroke of the rocker arm 50 is not less than 2:1. In practice, the ratio is between 2:1 and 10:1, and the ratio is between 2:1 and 6:1. Ratio is good, and a ratio of 2:1 to 4:1 is optimal.

In addition, as shown in FIG. 12 , in practice, two thread outlets can be set on the sewing machine 10, which can be reciprocally displaced on both sides of the needle for wiring two thread bodies 84a, 84b, and the two thread bodies 84a, 84b 84b passes around the seam section 83 of the suture 82 and is pressed by the seam section 83 to form the sewing structure 92 in FIG. 12 . The two wires 84a, 84b can pass through the equal slits 83 symmetrically or asymmetrically. The two outlets can be driven by one displacement device 30, or the sewing machine is provided with two displacement devices, and the two outlets are respectively driven by the two displacement devices.

Fig. 14 is the sewing machine 10' of the second preferred embodiment of the present invention, only showing the partial structure in the figure, and the same elements continue to use the component symbols of the first preferred embodiment.

The sewing machine 10' is equipped with a plurality of needle bars 13, a plurality of burs 14, a plurality of presser feet 15 and a plurality of pressers 16, such as 2 to 10 burs 14, which can simultaneously sew a plurality of sutures. This embodiment shows three needle bars, three burs and three presser bars, and the sewing machine 10' can sew three sutures at the same time.

The support 36 clamps one or more presser bars 15 . The suspension rod 57 of the rocker arm 50 is provided with three wire outlets 54 respectively corresponding to the three burs 14 for the three wire bodies 84 to respectively pass through the three wire outlets 54 . Please refer to FIG. 15 , when the rocker arm 50 moves back and forth, the three wire outlets 54 move back and forth on two sides of the corresponding burs 14 respectively.

As shown in Figures 16 to 18, when the sewing machine 10' performs the sewing operation, the three needles 14 (14a to 14c) perform the sewing stroke, and can simultaneously sew three sutures 82 on an object 80 to be sewn. , and the rocker arm 54 drives the three thread outlets 54 (54a to 54c) to reciprocate on the two sides of the three needles, so that the three thread bodies 84 move on the two sides of the three needles, and are subjected to the force of the sutures 82 Seam segment 83 is pushed down. In this way, multiple thread bodies 84 can be fixed on the object to be sewn simultaneously to form the sewing structure 93 in FIG. 18 .

Fig. 19 to Fig. 21 is the sewing machine 10 " of the third preferred embodiment of the present invention, has a displacement device 30¦' installed in the machine body 11. This sewing machine can be the model that has a bur 14 or a plurality of burs. The The main shaft 35' of the displacement device 30' is set on the machine body 11, and is driven by the drive shaft 19 of the machine body 11 through a linkage group 20' formed by gears 101 and 102. The speed ratio between the drive shaft 19 and the main shaft 35' is 2 : 1 to 10: 1. When the main shaft 35 'rotates, a reciprocating drive member (40') can drive a reciprocating member (50') to reciprocate. In this embodiment, the reciprocating drive member is an eccentric shaft The connecting rod 40 ′, and the reciprocating moving member is a rocker 50 ′, which has one or more wire outlets 54 .

A rotating shaft 120 is rotatably pivoted on the body 11 , and one end (bottom end) of the shaft passes through the body. One end 501 of the rocker arm 50' is connected to one end of the rotating shaft 120. The eccentric shaft connecting rod 40' can drive the rotating shaft 120 to rotate, and then drive the rocker arm 50' to move back and forth. The rotating shaft 120 is provided with a transverse arm 122; the eccentric shaft 42 of the eccentric wheel connecting rod 40' is fixed on the main shaft 35', and its connecting rod 44 is connected to a rod 111, and one end of the rod 111 is connected to a pivot joint. 112 is pivotally connected to the transverse arm 122 of the shaft 120 . The rocking arm 50' has a suspension rod 57, one end of the suspension rod 57 is connected to the rocking arm 50', and the other is provided with a wire outlet 54 for the wire body 84 to pass through. The rod member 111 and the rotating shaft 120 form a linkage mechanism 70', so that the eccentric shaft link member 40' can drive the rocker arm 50' to move. The rotating shaft 120 is the swing fulcrum of the rocker arm 50'.

Please refer to Fig. 22, when the main shaft 35' rotates, the connecting rod end (that is, the connecting rod 41) of the eccentric shaft connecting rod 40' drives the lateral displacement of the rod 111, and the rod drives the shaft through the transverse arm 122 120 reciprocates between clockwise and counterclockwise within an angle range. And then drive this rocking arm 50 ' and this suspension rod 57 reciprocating angular displacement.

Referring to FIG. 22 , when the eccentric wheel link member 40 ′ is in the first position, the rocker arm 50 ′ is in an initial position, and the wire outlet 54 is on the side of the bur 14 (as shown by the solid line in FIG. 22 . ); when the eccentric wheel link member 40' is in the second position, it drives the rotating shaft 120 to rotate clockwise, so that the rocker arm 50' is displaced in the clockwise direction to an end position, so that the wire outlet 54 is located at the position of the bur 14 The other side (as shown by the dotted line in Figure 22). When the eccentric shaft link member 40' returns to the first position, it drives the rotating shaft 120 to rotate counterclockwise, so that the rocker arm 50' returns to the initial position counterclockwise. Therefore, when the displacement device 30' is actuated, the thread outlet 54 reciprocates on both sides of the bur 14. The rotational speed ratio of the transmission shaft 19 and the main shaft 35' in this embodiment is 2:1, so that the suture 82 and the thread body 84 form the sewing structure 90 in FIG. 8 .

Fig. 23 is the fourth preferred embodiment of the sewing machine 10' " of the present invention, and its displacement device 30 is the same as that shown in the first preferred embodiment, so no further description is required.

The linkage group 20" of the sewing machine 10'" has a transmission shaft 28 installed on the machine body 11, one end of the transmission shaft 28 is engaged with the gear 104 of the transmission shaft 19 of the sewing machine with a gear 103, and the other end is connected with a gear 105 engages with the gear 106 of the main shaft 35 of the displacement device 30 . Thereby, the transmission shaft 19 can drive the main shaft 35 through the linkage group 20 ″, so that the displacement device 30 can be actuated. Similarly, the rotation speed ratio between the transmission shaft 19 and the main shaft 35 ′ is 2:1 to 10:1 .

Figures 8, 11, 12 and 18 show the seam 82 being sewn onto the fabric in a flat car manner. The structure of the present invention can be applied to suture structures formed by different types of sewing machines, such as thread babylock (thread overlock), thread coverstitch (thread coverstitch with binding), or flatlock, etc. . Coke machines can be divided into models with one needle (one needle) three threads (three stitches), two needles and four threads; three types of this machine have two needles and three threads, two needles and four threads, three needles and five threads; The parallel machine is a sewing machine with four needles and six threads.

24A and 24B show that the displacement device (not shown) of the present invention is set on a one-needle and three-thread cocker machine (not shown), and the front (FIG. 24A) and back of the sewing structure 94 sewed on the fabric 80. (FIG. 24B), which includes three sutures and a line body (reflective yarn, luminous yarn, conductive line body, etc.) 84. One of the three sutures 82 extends linearly on the front of the sewing structure 94 , and the suture 82 has a plurality of seams 83 . The displacement device of the present invention reciprocates the wiring of the thread body 84 on the two sides of the bur (not shown) of the hook machine, so that the thread body 84 is pressed and fixed by the slit section 83, and the thread body 84 is pressed by the slit section 83. For the process of fixing the slit section 83, please refer to the description above. The connection structure between the three sutures is not the object of the present invention, and will not be described in detail.

Fig. 25A and 25B are the front (Fig. 25A) and the back (Fig. 25B) of the sewing structure 95 that the displacement device of the present invention is arranged on a two-needle and four-thread cocker machine (not shown), and it comprises four Sutures and Secondary Body84. Two of the four sutures 82 are sewn on the front of the fabric 80, and have a plurality of seam segments 83 extending linearly. The displacement device reciprocally arranges the second thread body 84 on both sides of the two burs of the carder, so that the second thread body 84 is pressed by the seam segment 83 of the second suture 82 and fixed on the front side of the cloth.

Figures 26A and 26B show that the displacement device of the present invention is arranged on the front side (Figure 26A) and the back side (Figure 26B) of the sewing structure 96 sewn by a two-needle and three-thread three-machine (not shown), which comprises three Sutures and Secondary Body84. Two of the three sutures 82 are sewn on the front of the fabric 80 and have a plurality of seams 83 extending linearly. The displacement device reciprocally arranges the second thread body 84 on the two sides of the two burs of the three local machines, so that the second thread body 84 is fixed by the slit section 83 .

Figures 27A and 27B show that the displacement device of the present invention is arranged on the front side (Figure 27A) and the back side (Figure 27B) of the sewing structure 97 sewn by a three-machine (not shown) with two needles and four threads, which includes Four sutures and second-line body 84. Two of the four sutures 82 are sewn on the front of the cloth 80, and have a plurality of seam sections 83 extending linearly. The displacement device reciprocally arranges the second thread body 84 on the two sides of the two burs of the three local machines, so that the second thread body 84 is fixed by the slit section 83 .

Figures 28A and 28B show that the displacement device of the present invention is arranged on the front (Figure 28A) and back (Figure 28B) of the sewing structure 98 sewn by a three-needle and five-thread three-machine (not shown), which includes Five sutures and triplets84. Three of the five sutures 82 are sewn on the front of the cloth 80, and have multiple seam sections 83 extending linearly. The displacement device reciprocates the wiring of the three-wire body 84 on the two sides of the three burs of the three machine, so that the three-wire body 84 is fixed by the seam section 83 of the three sutures 82 .

The aforesaid four-needle and six-thread parallel stitching structure has four stitching threads 84 positioned on the front of the cloth; one or four thread bodies can be fixed by the seam sections of the stitching threads.

24A to 28A exemplify that multiple thread bodies 84 are fixed by the seam segments 83 of multiple sutures 82 , and in practice, only one thread body 84 can be fixed by one of the multiple sutures.

The present invention provides a sewing machine with an innovative sewing structure, which can fix one or more sutures and one or more thread bodies 84 on an object to be sewn, and the thread body 84 does not pass through the object to be sewn , can maintain the integrity of the structure and function of the thread body, and avoid damage or impairment of the function of the thread body.

The sewing machine of the present invention is an unprecedented creation, and the sewing method of the sewing machine is also the first method among similar articles. The embodiments disclosed in the present invention are only to illustrate the technical means of the present invention and not to limit them. Any equivalent modification of the present invention should be regarded as the protection scope of the present invention.

10, 10’, 10”, 10’”: sewing machine 11: body 12: Machine head 13: needle bar 14 (14a~14c): bur 15: Presser foot rod 16: Presser foot 17: machine board 18: Car pinhole 19: Drive shaft 191: Pulley 20, 20’, 20”: linkage group 21: The first linkage shaft 22: Pulley 23: belt 24: The second linkage shaft 25, 26: universal joint 28: transmission shaft 30, 30': displacement device 32: Bracket 34: arm 35, 35': spindle 36: Support 40, 40': reciprocating drive member (eccentric wheel link) 401: Connecting rod end 42: Eccentric wheel 44: Connecting rod 441: circle department 50, 50': reciprocating moving member (rocker arm) 52: Pivot end 54(54a~54c): Outlet 55: Shaft 56: Long groove 57: suspension rod 571: screw connection element 572: free end 58: tube body 70, 70': linkage mechanism 71: rotating parts 72: Pivot 73: first end 74: second end 76: Connecting rod 80: Cloth (to be sewn) 801: front 802: back 82: Suture 821: cross department 83(83a~83d): seam section 84 (84a, 84b): line body 86: Bottom line 90~98:Sewing structure D: Sewing direction X: dotted line P, Q: position T(T1~T3): needle point R: right L: left side 101~106: gear 111: Rod 112: pivot joint 120: rotating shaft 122: transverse arm

The purpose, characteristics and achieved effects of the present invention can be understood from the descriptions and drawings of some of the following preferred embodiments, wherein: Fig. 1 is a perspective view of a sewing machine according to a first preferred embodiment of the present invention. Fig. 2 is a perspective view of the sewing machine of the first preferred embodiment of the present invention from another angle of view. Fig. 3 is the front view of the sewing machine of Fig. 1. Fig. 4 shows the top view of the displacement device of the sewing machine in Fig. 1 as the main part, and other parts of the sewing machine are omitted in the figure. Fig. 5 to Fig. 7 show the perspective view of the displacement device in Fig. 1 as the main body, and show its actuation state. Fig. 8 shows a top view of a thread and a body sewn on an object to be sewn. Fig. 9 is a sectional view of section line 9-9 in Fig. 8 . 10A to 10C are schematic diagrams showing the sewing process of the sewing thread and the thread body by the sewing machine. Figure 11 shows a top view of another embodiment of a thread and thread body sewn to an object to be sewn. Fig. 12 shows an embodiment of sewing thread and two thread bodies on an object to be sewn. Fig. 13 shows a schematic view of the wire outlet of the bur and the rocker arm in Fig. 5 . Fig. 14 is a partial perspective view of a sewing machine according to a second preferred embodiment of the present invention. Fig. 15 is the schematic diagram of the wire outlet of the bur and the rocking arm of Fig. 14. Fig. 16 to Fig. 17 show the working state of the sewing machine of Fig. 14 . Fig. 18 shows a top view of a plurality of sutures and a plurality of thread bodies sewn on an object to be sewn. Fig. 19 is a perspective view of a sewing machine according to a third preferred embodiment of the present invention. Fig. 20 is a side view of Fig. 19 . Fig. 21 is a perspective view of the displacement device of the present embodiment. FIG. 22 is a schematic top view of FIG. 21 . Fig. 23 is a schematic diagram of a sewing machine according to a fourth preferred embodiment of the present invention. 24A and 24B show the front and back schematic views of the structure of the present invention applied to a sewing machine with one needle and three threads, where the thread body of the present invention is fixed by a suture. Figures 25A and 25B show the front and back schematic views of the structure of the present invention applied to a two-needle four-thread cocker locomotive to sew the sewing structure, wherein: the two-thread body of the present invention is fixed by two sutures. 26A and 26B show the front and back schematic views of the structure of the present invention applied to the sewing structure sewn by three locomotives with two needles and three threads, wherein: the two thread bodies of the present invention are fixed by two sutures. 27A and 27B show the schematic diagrams of the structure of the present invention applied to the front and back of the sewing structure sewn by three locomotives with two needles and four threads, wherein: the two-thread body of the present invention is fixed by two sutures. 28A and 28B show the schematic diagrams of the structure of the present invention applied to the front and back of the sewing structure sewn by three-needle and five-thread locomotives, wherein: the three-thread body of the present invention is fixed by three stitches.

11: body

12: Machine head

13: needle bar

14:bur

15: Presser foot rod

16: Presser foot

17: machine board

18: Car pinhole

19: Drive shaft

20: linkage group

21: The first linkage shaft

22: pulley

23: belt

24: The second linkage shaft

25: universal joint

30: Displacement device

36: Support

50: reciprocating moving components

54: Outlet

57: suspension rod

58: tube body

82: Suture

84: line body

D: Sewing direction

Claims (17)

A sewing machine comprising: A machine body, equipped with at least one needle bar, the bottom end of the needle bar has at least one bur; A displacement device, mounted on the body, and has at least one thread outlet, corresponding to the at least one bur, for at least one thread body to pass through the thread outlet; the displacement device drives the outlet The wire port reciprocates on both sides of the bur. The sewing machine as described in claim 1, wherein: when the needle moves up and down and resets, a sewing stroke is completed, and when the thread outlet is displaced and reset, a displacement stroke is completed, and the number of sewing strokes is related to the thread outlet The number of displacement strokes of the mouth has a proportional relationship, and the ratio of the number of sewing strokes of the needle to the displacement strokes of the thread outlet is not less than 2:1. The sewing machine as claimed in claim 1 or 2, wherein: the displacement device has a main shaft, and when the main shaft rotates, the displacement device generates reciprocating motion to drive the thread outlet to reciprocate. The sewing machine as described in claim 3, wherein: the sewing machine has a transmission shaft, the transmission shaft drives the main shaft of the displacement device to rotate, and when the transmission shaft rotates one turn, the needle completes a sewing stroke; the main shaft When one revolution is made, the outlet port completes a displacement stroke; the ratio of the rotational speed of the drive shaft to the rotational speed of the main shaft is not less than 2:1. The sewing machine as described in claim 1, wherein: the displacement device includes: a main shaft, a reciprocating driving member and a reciprocating moving member, the main shaft is rotatably pivoted on the machine body; the reciprocating driving member is connected to the main shaft, the When the main shaft rotates, the reciprocating drive member is driven to reciprocate between a first position and a second position; the outlet port is arranged on the reciprocating member; the reciprocating drive member drives the reciprocating member to an initial position and Move back and forth between the end positions, so that the outlet port moves back and forth. The sewing machine as described in claim 5, wherein: the reciprocating drive member is an eccentric wheel connecting rod, which has an eccentric wheel end and a connecting rod end, the eccentric wheel end is installed on the main shaft, and the eccentric wheel is connected The rod reciprocates in the radial direction of the main shaft, and the end of the connecting rod drives the displacement of the reciprocating member. The sewing machine as described in claim 6, wherein: the reciprocating member is a rocker arm with a swing fulcrum; the thread outlet is set on the rocker arm; the eccentric wheel link drives the rocker arm to reciprocate Swing between the initial position and the end position. The sewing machine as described in claim 3, comprising: a rotating shaft pivotally mounted on the body; a rocker arm connected to the rotating shaft; when the main shaft of the displacement device rotates, it drives the rotating shaft to rotate and drives the rocking arm to reciprocate Displacement; the outlet is located on the rocker arm. The sewing machine as described in claim 8, wherein: a reciprocating driving member is arranged between the main shaft and the rotating shaft, and when the main shaft rotates, the reciprocating driving member is driven to reciprocate between a first position and a second position , the reciprocating driving member links the reciprocating rotation of the rotating shaft. The sewing machine as described in claim 5, wherein: the displacement device further includes: a linkage mechanism, which is arranged between the reciprocating driving member and the reciprocating moving member, and the reciprocating driving member drives the reciprocating moving member through the linkage mechanism . The sewing machine as described in claim 7, wherein: the displacement device further includes: a linkage mechanism, including: a rotating member and a connecting rod, the rotating member has a pivot point; the connecting rod end of the eccentric wheel connecting rod The rotating part is connected; one end of the connecting rod is connected with the rotating part, and the other end is connected with the rocker arm; the eccentric wheel link part drives the rocker arm through the linkage mechanism. The sewing machine as described in claim 5, wherein: the sewing machine has a transmission mechanism, and the transmission mechanism has a transmission shaft; the transmission shaft and the main shaft are linked by a linkage group. The sewing machine as described in claim 7, wherein: the machine body is equipped with at least one presser bar; it also includes: a base connected to the presser bar; one end of the rocker arm is pivotally mounted on the support. The sewing machine as described in claim 1, wherein: the machine body has a plurality of needles; the displacement device is provided with a plurality of thread outlets, respectively corresponding to the needles, and the displacement device drives the thread outlets to the corresponding needles. Both sides of the needle reciprocate. A sewing method comprising: Sew at least one suture on an object to be sewn with at least one needle of a sewing machine, and each suture sews a plurality of seam sections; In the process of sewing the suture with the bur, at least one thread is reciprocally routed on both sides of the at least one bur, and the thread is routed by the first bur of the bur After the side moves to the second side, a segment of the suture is pressed against the object to be sewn; after the thread body moves from the second side of the needle to the first side, The other seam segment of the suture is pressed against the object to be sewn. The sewing method according to claim 15, wherein: the sewing machine is equipped with a displacement device, and the displacement device drives the thread body to reciprocate on both sides of the needle. The sewing method according to claim 16, wherein: the displacement device has at least one thread outlet for the at least one thread body to pass through the at least one thread outlet; the displacement device has at least one thread outlet The wire mouth reciprocates on both sides of the bur.

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