WO2021135199A1 - Mécanisme d'alimentation de machine à coudre et machine à coudre ayant un mécanisme d'alimentation de machine à coudre - Google Patents

Mécanisme d'alimentation de machine à coudre et machine à coudre ayant un mécanisme d'alimentation de machine à coudre Download PDF

Info

Publication number
WO2021135199A1
WO2021135199A1 PCT/CN2020/105402 CN2020105402W WO2021135199A1 WO 2021135199 A1 WO2021135199 A1 WO 2021135199A1 CN 2020105402 W CN2020105402 W CN 2020105402W WO 2021135199 A1 WO2021135199 A1 WO 2021135199A1
Authority
WO
WIPO (PCT)
Prior art keywords
sewing machine
feeding mechanism
link
driving member
connecting rod
Prior art date
Application number
PCT/CN2020/105402
Other languages
English (en)
Chinese (zh)
Inventor
万义明
黄明学
林晓晓
洪志敏
Original Assignee
杰克缝纫机股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 杰克缝纫机股份有限公司 filed Critical 杰克缝纫机股份有限公司
Publication of WO2021135199A1 publication Critical patent/WO2021135199A1/fr

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/24—Feed-dog lifting and lowering devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/14—Devices for changing speed or for reversing direction of rotation
    • D05B69/18—Devices for changing speed or for reversing direction of rotation electric, e.g. foot pedals

Definitions

  • the invention belongs to the technical field of sewing machines, and in particular relates to a sewing machine feeding mechanism and a sewing machine with the mechanism.
  • a sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material.
  • the main shaft driving part of the existing sewing machine drives the main shaft to rotate, and the main shaft realizes feeding by driving the feeding eccentric wheel and the tooth lifting eccentric wheel; the existing sewing machine has a single feeding style and complex debugging for different sewing materials.
  • the present invention provides a feeding mechanism for a sewing machine, comprising a main shaft, a main shaft driving member connected to the main shaft, a needle plate, a feed dog arranged below the needle plate, a tooth frame fixedly connected to the feed dog, and A mounting seat rotatably connected to the outer shell, the tooth frame has a first end and a second end opposite to each other,
  • the main shaft is connected to the first end of the tooth frame, and the main shaft driving member can drive the main shaft to rotate and drive the cloth feed dog to make a reciprocating translational movement relative to the needle plate through the tooth frame;
  • the feeding mechanism of the sewing machine further includes a feeding dog driving member connected to the second end of the bracket, and the feeding dog driving member can drive the bracket up and down and drive the feeding dog.
  • the cloth tooth performs a reciprocating lifting movement relative to the needle plate;
  • the feeding mechanism of the sewing machine further includes an electric control element connected to the mounting base, and the electric control element can drive the mounting base to rotate relative to the outer casing to realize reverse seam;
  • the feeding mechanism of the sewing machine further includes a controller, the main shaft driving part and the feeding dog driving part are both connected to the controller, and the controller can control the main shaft driving part and the feeding dog driving part Operation.
  • the main shaft driving member can drive the feeding dog to move relative to the needle plate through the main shaft
  • the feeding dog driving member can drive the feeding dog to rise or fall relative to the needle plate
  • the two driving members respectively control the feeding teeth.
  • Translation movement and lifting movement, the electronic control element and the mounting seat can realize the reverse stitching
  • the change of the transmission speed of the spindle drive and the feed dog drive can make the feed dog form a variety of feeding forms, thereby making the sewing material style diversified and enlarged
  • the use range of the sewing machine's feeding mechanism, and the controller can control the operation of the spindle drive and the feed dog drive, so as to coordinate the movement of the spindle drive and the feed dog drive to ensure normal and regular sewing.
  • the sewing machine feeding mechanism further includes a first transmission assembly, the first transmission assembly includes an eccentric, a swing rod, and a first rotating shaft, and the swing lever and the first rotating shaft are opposite to each other.
  • the eccentric wheel is fixedly sleeved on the main shaft, the first end of the pendulum rod is movably sleeved on the eccentric wheel, and the second end of the pendulum rod is rotatably connected to the first end of the first shaft, The second end of the first rotating shaft is connected to the first end of the bracket.
  • the first transmission assembly further includes a first connecting rod, a second connecting rod, and a crank, and the first connecting rod and the second connecting rod have opposite first ends and first ends, respectively. Two ends,
  • the mounting seat is provided with a mounting groove, the first connecting rod and the second connecting rod are both arranged in the mounting groove, and the first end of the first connecting rod is hinged to the side forming the mounting groove Wall, the second end of the first link and the second end of the pendulum rod are both hinged to the first end of the second link, and the second end of the second link is hinged to the crank ,
  • the crank is sleeved and fixed to the first end of the first rotating shaft.
  • the number of the first connecting rod and the second connecting rod are both two, and the two first connecting rods are respectively hinged to two opposite side walls forming the mounting groove ,
  • the two second connecting rods are both arranged between the two first connecting rods, and the two second connecting rods sandwich the swing rod.
  • the first transmission assembly further includes a tooth frame seat, the tooth frame seat is sleeved and fixed to the second end of the first rotating shaft, and the tooth frame seat is provided with an adapter Part, the second end of the bracket is rotatably connected to the adapter part.
  • the sewing machine feeding mechanism further includes a second transmission assembly
  • the second transmission assembly includes a third connecting rod, a fourth connecting rod, a fifth connecting rod, and a second rotating shaft.
  • the connecting rod, the fourth connecting rod, the fifth connecting rod and the second rotating shaft respectively have opposite first and second ends
  • the first end of the third link is fixedly connected to the output end of the feed dog driving member, the first end of the fourth link is hinged to the second end of the third link, and the first end of the fourth link is hinged to the second end of the third link.
  • the first end of the five link is hinged to the second end of the fourth link, the second end of the fifth link is fixedly connected to the first end of the second shaft, and the second end of the second shaft The two ends are connected to the second end of the tooth frame.
  • the second transmission assembly further includes a tooth-lifting rocker, the tooth-lifting rocker is sleeved and fixed to the second end of the second shaft, and the tooth-lifting rocker is provided with A guide groove, the second end of the tooth frame is slidably arranged in the guide groove.
  • the sewing machine feeding mechanism further includes a third transmission assembly
  • the third transmission assembly includes a sixth link, an adapter rod, and a seventh link.
  • the sixth link, the Both the adapter rod and the seventh connecting rod have opposite first and second ends,
  • the first end of the sixth link is fixedly connected to the output end of the electronic control element, the adapter rod is movably sleeved on the outer shell, and the first end of the adapter rod is hinged to the The second end of the sixth link, the second end of the transfer rod is hinged to the first end of the seventh link, and the second end of the seventh link is hinged to the mounting seat.
  • the sewing machine feeding mechanism further includes a first encoder and a second encoder that are both connected to the controller,
  • the first encoder is connected to the spindle driving part, and the first encoder can detect the rotation angle phase data and the rotation speed data of the spindle driving part and transmit the data to the controller,
  • the second encoder is connected to the feeding dog driving member, and the second encoder can detect the rotation angle phase data and the rotation speed data of the feeding dog driving member and transmit the data to the controller.
  • the present invention also provides a sewing machine, which includes the above-mentioned sewing machine feeding mechanism.
  • the sewing machine provided by the present invention is provided with the above-mentioned sewing machine feeding mechanism to ensure the normal sewing of the sewing machine, while diversifying the sewing material patterns of the sewing machine, and has a wide range of application prospects.
  • Fig. 1 is a schematic structural diagram of a feeding mechanism of a sewing machine in an embodiment of the present invention
  • FIG 2 is a schematic diagram of the structure of the tooth frame in the feeder of the sewing machine shown in Figure 1;
  • Figure 3 is a schematic structural view of part of the structure in the feeding mechanism of the sewing machine shown in Figure 1;
  • FIG. 4 is a schematic structural view of another part of the structure of the feeding mechanism of the sewing machine shown in FIG. 1;
  • Figure 5 is a schematic view of the mechanism of the first transmission assembly in the feeding mechanism of the sewing machine shown in Figure 1;
  • Fig. 6 is a partial enlarged view of A in the first transmission assembly shown in Fig. 5;
  • FIG. 7 is a schematic diagram of the structure of the electric control component and the third transmission component of the sewing machine feeder shown in FIG. 1;
  • Figure 8 is a schematic diagram of another feed dog trajectory
  • Figure 9 is a schematic diagram of another feed dog trajectory
  • Figure 10 is a schematic diagram of another feed dog trajectory
  • Fig. 11 is a schematic view of the mechanism of a sewing machine in an embodiment of the present invention.
  • Feeding mechanism of sewing machine 10. Needle plate; 11. Feed dog; 12. Thread frame; 121. First connection part; 122. Second connection part; 123. Third connection part; 20.
  • Spindle assembly 21. Main shaft drive part; 22, main shaft; 30, first transmission assembly; 31, eccentric wheel; 32, swing rod; 33, mounting seat; 331, mounting groove; 34, first connecting rod; 35, second connecting rod; 36 37. The first rotating shaft; 38. The bracket seat; 381. The fixed part; 382. The adapter part; 40. The feeder drive part; 50. The second transmission assembly; 51. The third connecting rod; 52.
  • a component when referred to as being "installed on” another component, it can be directly installed on the other component or a centered component may also exist. When a component is considered to be “installed on” another component, it can be directly installed on another component or a centered component may exist at the same time. When a component is considered “fixed” to another component, it can be directly fixed to the other component or there may be a centered component at the same time.
  • Figure 1 is a schematic structural diagram of a sewing machine feeding mechanism 100 in an embodiment of the present invention
  • Figure 2 is a structural schematic diagram of the tooth frame 11 in the sewing machine feeder 100 shown in Figure 1
  • Figure 3 is a diagram 1 shows a schematic structural view of a part of the sewing machine feeding mechanism 100
  • Figure 4 is a structural schematic view of another part of the sewing machine feeding mechanism 100 shown in FIG. 1
  • FIG. 5 is a first transmission assembly 30 in the sewing machine feeding mechanism 100 shown in FIG.
  • Fig. 6 is a partial enlarged view of A in the first transmission assembly 100 shown in Fig. 5
  • Fig. 7 is a schematic structural diagram of the electronic control assembly 60 and the third transmission assembly 70 in the sewing machine feeder 100 shown in Fig. 1.
  • the present invention provides a sewing machine feeding mechanism 100, which is arranged in a sewing machine and is used to drive the translation and lifting of the feeding dog 11, so that the feeding dog 11 has a variety of motion forms and forms a variety of cloth feeding trajectories, thereby adapting to a variety of Sewing material is conducive to diversification of sewing material styles.
  • the feeding mechanism of the sewing machine includes a needle plate 10, a feeding dog 11, a dog frame 12, a spindle assembly 20, a first transmission assembly 30, a feeding dog driving part 40, a second transmission assembly 50 and a controller (not shown).
  • the tooth 11 is arranged under the needle plate 10, the tooth frame 12 is connected with the feeding dog 11, the main shaft assembly 20 is connected with the first transmission assembly 30, the first transmission assembly 30 is connected with the tooth frame 12, and the feeding tooth drive part 40 is connected to the second transmission assembly 50, the second transmission assembly 50 is connected to the bracket 12, and the main shaft assembly 20 and the feed dog driving member 40 are both connected to the controller.
  • the needle plate 10 is used to place the sewing material
  • the feeding dog 11 is used to realize the movement of the sewing material
  • the bracket 12 is used to drive the feeding dog 11 to move
  • the spindle assembly 20 provides driving force for the translation of the feeding dog 11.
  • the first transmission assembly 30 is used to drive the feeding dog 11 to translate
  • the feeding dog driving member 40 provides driving force for the raising or lowering of the feeding dog 11
  • the second transmission assembly 50 is used to drive the feeding dog 11 up and down
  • the controller is used to control the spindle assembly 20 And the feed dog driving member 40.
  • the bracket 12 includes a first connecting portion 121, a second connecting portion 122, and a third connecting portion 123.
  • the second connecting portion 122 and the third connecting portion 123 are both connected to the first connecting portion 121, and the first connecting portion 121 is used for The feeding dog 11 is connected, the second connecting portion 122 is used for connecting the main shaft assembly 20, and the third connecting portion 123 is used for connecting the feeding dog driver 40.
  • the shape of the first connecting portion 121 is generally flat, the first connecting portion 121 is attached to the bottom of the feeding dog 11 and fixedly connected to the feeding dog 11; the shape of the second connecting portion 122 is generally arc-shaped and forming a second connection
  • the center of the arc of the part 122 is above the first connecting part 121; the shape of the third connecting part 123 is roughly arc-shaped, and the center of the arc forming the third connecting part 123 is below the first connecting part 121.
  • the first connecting part 121 and the feeding dog 11 are fixedly connected by threaded fasteners.
  • the use of threaded fasteners can make the first connecting part and the feeding dog 11 have good motion stability and prevent
  • the tooth frame 12 and the feed dog 11 are loose and affect the normal feeding movement of the feed dog 11; it is understood that in other embodiments, the first connecting portion 121 and the feed dog 11 may also be connected by adhesive, etc.
  • the method is fixed, as long as the motion stability of the bracket 12 and the feeding dog 11 can be ensured.
  • the spindle assembly 20 includes a spindle drive 21 and a spindle 22.
  • the output end of the spindle drive 21 is fixedly connected to the spindle 22, and the spindle 22 is connected with other components. Then, under the drive of the spindle drive 21, the needle can be realized by other components. Puncture material, thread take-up movement and hook movement.
  • the spindle drive 21 adopts a servo motor, which has the advantages of precise control, stable operation and good high-speed performance; it is understood that in other embodiments, the spindle drive 21 can also be selected as other components such as air cylinders. , As long as it can provide the corresponding driving force.
  • the first transmission assembly 30 includes an eccentric wheel 31, a pendulum rod 32, a mounting seat 33, a first connecting rod 34, a second connecting rod 35, a crank 36, a first rotating shaft 37 and a bracket seat 38.
  • the eccentric wheel 31 is fixedly sleeved on The first end of the main shaft 22 and the pendulum rod 32 is movably sleeved on the eccentric wheel 31,
  • the mounting seat 33 is rotatably connected with the outer casing (not shown), the mounting seat 33 is provided with a mounting groove 331, the first connecting rod 34 is connected to the second connecting rod 34
  • the connecting rods 35 are all arranged in the mounting groove 331, the first end of the first connecting rod 34 is hingedly connected to the mounting seat 33, the second end of the first connecting rod 34 is hingedly connected to the first end of the second connecting rod 35, and the swing rod
  • the second end of 32 is hingedly connected to the crank 36, the crank 36 is sleeved and fixed to the first end of the first rotating shaft 37
  • the spindle 22 drives the eccentric wheel 31 to rotate together. Due to the structural characteristics of the eccentric wheel 31, the eccentric wheel 31 can drive the second end of the swing rod 32 to a certain Doing orbiting movement within the space range, due to the hinged connection between the first link 34, the second link 35 and the mounting seat 33, the first link 34 and the second link 35 can allow the second end of the swing rod 32 to perform
  • the swing rod 32 drives the first rotating shaft 37 to rotate through the second connecting rod 35, and the first rotating shaft 37 drives the carrier base 38 to rotate, and the carrier base 38 can drive the feed dog 11 to the needle plate through the second connecting portion 122 10 Do horizontal reciprocating movements.
  • the number of the first link 34 and the number of the second link 35 are both two.
  • the two first links 34 are symmetrical, and the two second links 35 are symmetrical.
  • the two first connecting rods 34 are respectively hinged to two opposite side walls forming the mounting groove 331
  • the two second connecting rods 35 are both arranged between the two first connecting rods 34
  • the two second connecting rods 35 and the two first connecting rods 34 are hinged in one-to-one correspondence, and the two second connecting rods 35 are clamped and hinged to the swing rod 32.
  • This arrangement can improve the swing rod 32, the first connecting rod 34, and the second connecting rod 35.
  • connection stability of the first shaft 37 and the first rotating shaft 37 is conducive to stable transmission; it can be understood that in other embodiments, under different working conditions, the number of the first connecting rod 34 and the second connecting rod 35 can also be other values, as long as The above-mentioned purpose can be achieved.
  • the bracket base 38 includes a fixing portion 381 and an adapter portion 382, the fixing portion 381 is fixedly connected to the adapter portion 382, the shape of the fixing portion 381 is substantially cylindrical, and the fixing portion 381 is fixedly sleeved on the second end of the first rotating shaft 37,
  • the adapter portion 382 is rotatably connected with the second connecting portion 122; and when the first rotating shaft 37 drives the bracket base 38 to rotate, the adapter portion 382 can drive the feed dog 11 to translate relative to the needle plate 10 through the second connecting portion 122.
  • the spindle drive 21 can individually control the translational movement of the feed dog 11 relative to the needle plate 10 through the spindle 22 and the first transmission assembly 30, and separate the horizontal and vertical movement of the feed dog 11, facilitating the formation of a variety of feed dogs 11 Movement trajectory.
  • the feeding dog driving member 40 is indirectly connected to the feeding dog 11 through the second transmission assembly 50.
  • the feeding dog driving member 40 is a private server motor, so that the transmission accuracy is higher, which is conducive to precise sewing; it is understandable that in other embodiments, the feeding dog driving member 40 can also be selected as a stepping motor Or other types of driving parts, as long as the corresponding driving force can be provided.
  • the second transmission assembly 50 includes a third connecting rod 51, a fourth connecting rod 52, a fifth connecting rod 53, and a second rotating shaft 54.
  • the first end of the third connecting rod 51 is fixedly connected to the output end of the feed dog driving member 40 ,
  • the second end of the third link 51 is hinged to the first end of the fourth link 52, the second end of the fourth link 52 is hinged to the first end of the fifth link 53, and the second end of the fifth link 53
  • the two ends are fixedly connected to the first end of the second rotating shaft 54, and the second end of the second rotating shaft 54 is connected to the third connecting portion 123 on the bracket 12.
  • the feed dog driver 40 can drive the third link 51 to make a circular motion. Due to the structural characteristics of the link, the third link 51 can drive the fifth link 53 to reciprocate in a certain angle range through the fourth link 52. Since the fifth connecting rod 53 is fixedly connected to the second rotating shaft 54, the fifth connecting rod 53 can drive the second rotating shaft 54 to rotate within a certain angle range.
  • the second rotating shaft 54 is connected to the third connecting portion 123, and the second rotating shaft 54 The third connecting portion 123 drives the tooth frame 12 to rise or fall.
  • a tooth lifting rocker 55 is also provided between the second rotating shaft 54 and the third connecting portion 123.
  • the tooth lifting rocker 55 is sleeved and fixed to the second end of the second rotating shaft 54.
  • the tooth lifting rocker 55 is provided with a guide groove 551.
  • the third connecting portion 123 is slidably disposed in the guide groove 551; when the second rotating shaft 54 drives the tooth lifting rocker 55 to rotate, the third connecting portion 123 can slide in the guide groove 551. Due to the shape characteristics of the third connecting portion 123, When the third connecting portion 123 is at different positions of the guiding groove 551, the corresponding bracket 12 is at a different height, that is, the third connecting portion 123 will drive the feeding dog 11 to rise or fall.
  • the second transmission assembly 50 also includes a slider 56 which is arranged in the guide groove 551 and can slide along the guide groove 551, and the third connecting portion 123 is rotatably connected with the part of the slider 56 that extends out of the guide groove 551, so as to realize the first
  • the three connecting portion 123 is connected to the lifting rocker 55 through the slider 56; and when the second rotating shaft 54 rotates, the lifting rocker 55 rotates together with the first rotating shaft 37, and the sliding block 56 slides along the guide groove 551 and drives the second connection
  • the portion 122 rises or falls relative to the needle plate 10, so that the carrier 12 drives the feeding dog 11 to make a reciprocating lifting movement relative to the needle plate 10.
  • the slider 56 is attached to the side wall of the guide groove 551, so that when the slider 56 slides along the guide groove 551, the slider 56 will not shake relative to the side wall of the guide groove 551, which improves the transmission. Stability is conducive to the stable movement of the feeding dog 11 relative to the needle plate 10, and is further conducive to normal feeding; it is understood that in other embodiments, the slider 56 may not be attached to the side wall of the guide groove 551, as long as the corresponding The transmission relationship is sufficient.
  • the feeding dog driving member 40 can individually control the lifting movement of the feeding dog 11 relative to the needle plate 10 through the second transmission assembly 50, and then combine with the translational movement of the feeding dog 11 relative to the needle, thereby forming a variety of motion trajectories, suitable for many Kind of sewing material.
  • the sewing machine feeding mechanism 100 further includes an electric control assembly 60 and a third transmission assembly 70.
  • the electric control assembly 60 is installed on the outer shell and connected with the third transmission assembly 70.
  • the third transmission assembly 70 is connected with the mounting base 33.
  • the control assembly 60 is electrically connected to the external control center, and can move under the electric control of the external control center; the third transmission assembly 70 is used to transmit the control action of the electronic control assembly 60 to adjust the swing angle of the mounting seat 33 relative to the external housing .
  • the electric control assembly 60 includes an electric control element 61, which is mounted on an outer casing and can move under the action of an external electric control center.
  • the electric control element 61 adopts an electromagnet.
  • the electromagnet moves and transmits its control action to the mounting seat 33 through the third transmission assembly 70;
  • the principle control mounting seat 33 has a better cost performance, and has a strong anti-interference ability against complex environments.
  • the electromagnet may also use other electronic control elements other than electromagnets, such as air cylinders, hydraulic cylinders, etc.; as long as the electronic control element 61 can adjust the mounting seat 33 relative to the outside through the third transmission assembly 70 The swing angle of the shell is sufficient.
  • the third transmission assembly 70 adopts a connecting rod transmission structure, which is formed by hinged connection of a plurality of transmission connecting rods.
  • the third transmission assembly includes a sixth link 71, an adapter rod 72 and a seventh link 73.
  • the first end of the sixth link 71 is fixedly connected to the output end of the electronic control element 61, and the shape of the adapter rod 72 is approximately "L" shape, the first end of the adapter rod 72 is hinged to the second end of the sixth link 71, the corner of the adapter rod 72 is movably sleeved on the outer shell, and the second end of the adapter rod 72 is hinged to The first end of the seventh link 73 and the second end of the seventh link 73 are hinged to the mounting seat 33.
  • the third transmission assembly 70 can also adopt other transmission methods such as conveyor belts, gear transmissions, etc. to transmit the adjustment action of the electronic control element, as long as the third transmission assembly 70 can realize the swing angle of the mounting seat. Just adjust.
  • the electronic control element 61 can pull or push the sixth link 71 to move, and the sixth link 71 drives the adapter rod 72 to rotate around the connection with the external housing, and pull or push the seventh link.
  • the rod 73 and the seventh connecting rod 73 drive the mounting seat 33 to rotate relative to the outer casing.
  • the arrangement of the electronic control assembly 60 and the third transmission assembly 70 can realize the reverse feeding of the sewing machine feeding mechanism 100.
  • the main shaft driving member 21 drives the feed dog 11 to move from left to right for positive feeding
  • the electronic control assembly 60 can drive the mounting seat 33 to rotate relative to the outer housing through the third transmission assembly 70, and then when needed When feeding backwards, the mounting seat 33 can be rotated to a certain angle so that the mounting seat 33 reaches a position opposite to the forward feeding, and the position of the first rotating shaft 37 relative to the mounting seat 33 is changed so that the first rotating shaft 37 rotates in the opposite direction relative to the forward feeding.
  • the revolving phase angle of the cloth tooth 11 is deflected relative to the positive feeding phase angle, thereby realizing reverse feeding.
  • the feeding mechanism 100 of the sewing machine further includes a controller.
  • the main shaft driving member 21 and the feeding dog driving member 40 are both connected to the controller, and the controller can control the operation of the main shaft driving member 21 and the cloth feeding dog driving member 40.
  • controller can control the operation of the spindle drive 21 and the feed dog drive 40
  • controller can control the activation of each drive, but also that the controller can control the spindle drive 21 and The operating speed, start time, and end time of the feed dog driver 40.
  • the controller can coordinate the spindle drive 21 and the feed dog drive 40 to ensure normal sewing.
  • the main shaft driving member 21 drives the main shaft 22 to rotate for one revolution, and the main shaft 22 drives the feed dog 11 to complete the reciprocating translation movement, and drives other components to complete the sewing of one stitch length.
  • the controller drives the feeder.
  • the cloth dog 11 motor reciprocates once, and the cloth feed dog 11 completes the reciprocating lifting movement, so as to complete the cloth feeding movement of the cloth dog 11 during this period; and during this period, the spindle drive 21 can change the translation of the cloth dog 11 Speed, the feeding dog driving member 40 can change the lifting speed of the feeding dog 11, thereby realizing the diversification of sewing material styles.
  • the sewing machine feeding mechanism 100 also includes a first encoder (not shown) and a second encoder (not shown). Both the first encoder and the second encoder are electrically connected to the controller, while the first encoder is connected to the spindle
  • the driving part 21 can detect the rotation angle phase and the rotation speed of the spindle driving part, and transmit the rotation phase angle data and the rotation speed data of the spindle driving part 21 to the controller;
  • the second encoder is connected to the feeding dog driving part 40, It can detect the rotation angle phase and the rotation speed of the feed dog driver 40, and transmit the rotation phase angle data and the rotation speed data of the feed dog driver 40 to the controller.
  • the settings of the first encoder and the second encoder can accurately reflect the operating status of the spindle drive 21 and the feed dog drive 40, respectively, so as to facilitate the controller to accurately coordinate the movement of the spindle drive 21 and the feed dog drive 40. Thereby improving the sewing accuracy.
  • Figure 8 is a schematic diagram of the trajectory of a feeding dog 11;
  • Figure 9 is a schematic diagram of another feeding trajectory of the feeding dog 11;
  • Figure 10 is a schematic diagram of another feeding trajectory of the feeding dog 11;
  • FIG. 11 is a schematic diagram of another feeding trajectory of the feeding dog 11.
  • the feeding trajectory diagram shown in FIG. 9 is compared with the feeding trajectory diagram shown in FIG. 8, the conveying action of the feed dog 11 is started later, that is, relative to the feeding trajectory, the spindle drive 21 drives a part of the stitches. After that, the feed dog 11 starts to convey the sewing material.
  • This sewing mode can make the upper thread tightness relative to the thin material good;
  • the feeding trajectory diagram shown in Figure 10 is compared with the feeding trajectory diagram shown in Figure 8.
  • the conveying action of the tooth 11 should be finished early, that is, compared to Fig. 8, the spindle drive 21 drives the piercing material, and the sewing needle completes the feeding action before piercing the sewing material.
  • This sewing mode can prevent the needle from sewing thick materials.
  • the feed trajectory diagram shown has the same advantages.
  • FIGS. 8 to 11 only list a few of the feeding trajectories of the feed dog 11.
  • the spindle drive 21 and the feed dog drive 40 can be driven to achieve a variety of And different styles of feeding dog 11 feeding track.
  • the spindle drive 21 can drive the feed dog 11 to translate relative to the needle plate 10 through the spindle 22, and the feed dog drive 40 can drive the feed dog 11 to rise or fall relative to the needle plate 10.
  • the driving parts respectively control the translational movement and lifting motion of the feeding dog 11, and the change of the transmission speed of the main shaft driving part 21 and the feeding dog driving part 40 can make the feeding dog 11 form a variety of feeding forms, thereby making the sewing material style diversified. Expand the use range of the sewing machine feeding mechanism 100.
  • the controller can control the operation of the spindle drive 21 and the feed dog drive 40, so as to coordinate the movement of the spindle drive 21 and the feed dog drive 40 to ensure normal and regular sewing .
  • the present invention also provides a sewing machine, which includes the above-mentioned sewing machine feeding mechanism 100.
  • the sewing machine provided by the present invention is provided with the above-mentioned sewing machine feeding mechanism 100 to ensure the normal sewing of the sewing machine, and at the same time, diversify the sewing material patterns of the sewing machine, and have a wide range of application prospects.

Landscapes

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

Abstract

L'invention concerne un mécanisme d'alimentation de machine à coudre (100). Un élément d'entraînement d'arbre principal (21) peut entraîner une griffe d'alimentation (11) pour effectuer un mouvement de translation alternatif par rapport à une plaque à aiguilles (10). Un élément d'entraînement de griffe d'alimentation (40) est relié à une crémaillère de griffe d'alimentation (12), et l'élément d'entraînement de griffe d'alimentation (40) peut entraîner la griffe d'alimentation (11) pour effectuer un mouvement d'élévation alternatif par rapport à la plaque à aiguilles (10). L'élément d'entraînement d'arbre principal (21) et l'élément d'entraînement de griffe d'alimentation (40) sont tous deux reliés à un contrôleur, et le contrôleur peut commander le fonctionnement de l'élément d'entraînement d'arbre principal (21) et de l'élément d'entraînement de griffe d'entraînement (40). Les deux éléments d'entraînement du mécanisme d'alimentation de machine à coudre (100) commandent respectivement le mouvement de translation et de levage de la griffe d'alimentation (11), des modifications des vitesses de transmission de l'élément d'entraînement d'arbre principal (21) et de l'élément d'entraînement de griffe d'alimentation (40) peuvent amener la griffe d'alimentation (11) à former de multiples formes d'alimentation en tissu, de sorte que les styles de matériau de couture sont diversifiés, et le contrôleur peut coordonner le mouvement de l'élément d'entraînement d'arbre principal (21) et de l'élément d'entraînement de griffe d'alimentation (40) pour assurer une couture normale. L'invention concerne également une machine à coudre comprenant le mécanisme d'alimentation de machine à coudre (100). Les styles de matériau de couture de la machine à coudre sont diversifiés, et la machine à coudre offre de larges perspectives d'application.
PCT/CN2020/105402 2019-12-30 2020-07-29 Mécanisme d'alimentation de machine à coudre et machine à coudre ayant un mécanisme d'alimentation de machine à coudre WO2021135199A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911399442.7A CN111074433B (zh) 2019-12-30 2019-12-30 缝纫机送料机构及具有该机构的缝纫机
CN201911399442.7 2019-12-30

Publications (1)

Publication Number Publication Date
WO2021135199A1 true WO2021135199A1 (fr) 2021-07-08

Family

ID=70319929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/105402 WO2021135199A1 (fr) 2019-12-30 2020-07-29 Mécanisme d'alimentation de machine à coudre et machine à coudre ayant un mécanisme d'alimentation de machine à coudre

Country Status (2)

Country Link
CN (1) CN111074433B (fr)
WO (1) WO2021135199A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111074433B (zh) * 2019-12-30 2021-11-02 杰克缝纫机股份有限公司 缝纫机送料机构及具有该机构的缝纫机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003181173A (ja) * 2001-12-14 2003-07-02 Juki Corp ミシンにおける縫目形成方法とミシンにおける縫目形成装置
CN104073982A (zh) * 2013-03-29 2014-10-01 兄弟工业株式会社 缝纫机
US20150090167A1 (en) * 2013-10-02 2015-04-02 Shing Ray Sewing Machine Co., Ltd. Direct drive cloth feeding mechanism of sewing machine
CN204918998U (zh) * 2015-08-20 2015-12-30 浙江中捷缝纫科技有限公司 一种平缝机的送料机构
CN106917194A (zh) * 2015-10-30 2017-07-04 兄弟工业株式会社 缝纫机及缝纫机的控制方法
CN108998899A (zh) * 2018-08-16 2018-12-14 杰克缝纫机股份有限公司 一种自动改善收线的送布机构
CN109594208A (zh) * 2019-01-14 2019-04-09 安徽杰羽制鞋机械科技有限公司 一种缝纫机的针距调节和自动倒送料结构
CN111074433A (zh) * 2019-12-30 2020-04-28 杰克缝纫机股份有限公司 缝纫机送料机构及具有该机构的缝纫机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819061C1 (fr) * 1988-06-04 1989-11-23 Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern, De
SE468898B (sv) * 1991-08-09 1993-04-05 Husqvarna Sewing Machines Anordning i sicksacksymaskin
CN105155141B (zh) * 2015-09-30 2018-03-02 杰克缝纫机股份有限公司 双电机驱动送料机构及缝纫机
CN105177870B (zh) * 2015-09-30 2019-01-11 杰克缝纫机股份有限公司 缝纫机抬牙机构
CN108625049A (zh) * 2017-03-20 2018-10-09 杰克缝纫机股份有限公司 缝纫机的抬牙送料驱动机构及缝纫机
CN207812056U (zh) * 2017-12-27 2018-09-04 浙江美机缝纫机有限公司 可调节送布及控制针距的缝纫机
CN109778436B (zh) * 2019-03-15 2021-02-05 杰克缝纫机股份有限公司 缝纫机的送布控制机构、缝纫机及送布控制方法
CN109989184B (zh) * 2019-04-25 2021-09-28 杰克缝纫机股份有限公司 倒缝调节机构及使用该机构的缝纫机

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003181173A (ja) * 2001-12-14 2003-07-02 Juki Corp ミシンにおける縫目形成方法とミシンにおける縫目形成装置
CN104073982A (zh) * 2013-03-29 2014-10-01 兄弟工业株式会社 缝纫机
US20150090167A1 (en) * 2013-10-02 2015-04-02 Shing Ray Sewing Machine Co., Ltd. Direct drive cloth feeding mechanism of sewing machine
CN204918998U (zh) * 2015-08-20 2015-12-30 浙江中捷缝纫科技有限公司 一种平缝机的送料机构
CN106917194A (zh) * 2015-10-30 2017-07-04 兄弟工业株式会社 缝纫机及缝纫机的控制方法
CN108998899A (zh) * 2018-08-16 2018-12-14 杰克缝纫机股份有限公司 一种自动改善收线的送布机构
CN109594208A (zh) * 2019-01-14 2019-04-09 安徽杰羽制鞋机械科技有限公司 一种缝纫机的针距调节和自动倒送料结构
CN111074433A (zh) * 2019-12-30 2020-04-28 杰克缝纫机股份有限公司 缝纫机送料机构及具有该机构的缝纫机

Also Published As

Publication number Publication date
CN111074433A (zh) 2020-04-28
CN111074433B (zh) 2021-11-02

Similar Documents

Publication Publication Date Title
CN105088547B (zh) 缝纫机抬牙送料机构及缝纫机
CN109371576B (zh) 送布牙架调节机构及使用该机构的包缝机
CN1752321B (zh) 缝纫机的送布装置
CN111197203B (zh) 一种抬牙剪线组件和具有该抬牙剪线组件的缝纫机
CN105155142A (zh) 双电机驱动送料机构及缝纫机
WO2021135199A1 (fr) Mécanisme d'alimentation de machine à coudre et machine à coudre ayant un mécanisme d'alimentation de machine à coudre
CN111719253A (zh) 一种由一个电机控制多个缝纫动作结构及缝纫机
CN106948101B (zh) 一种送料机构及缝纫机
CN214572593U (zh) 一种可柔性调节的送料勾线机构及缝纫机
CN219297757U (zh) 一种送料牙调节机构及缝纫机
CN103361893A (zh) 一种家用多功能电脑缝纫机
CN105113136A (zh) 缝纫机送料机构及缝纫机
CN111394893A (zh) 一种送布时序可调的送布机构及缝纫机
WO2021128842A1 (fr) Mécanisme d'alimentation de machine à coudre et machine à coudre comprenant le mécanisme d'alimentation
CN201459373U (zh) 一种缝纫机的差动送料装置
CN217026351U (zh) 一种可输送珠子、输送金片的多功能装置
CN105155141A (zh) 双电机驱动送料机构及缝纫机
CN110629424A (zh) 一种地毯机
CN220867672U (zh) 一种缝纫机的送料机构及具有该送料机构的缝纫机
CN2856091Y (zh) 多针绗缝机可调式传动结构
CN216156105U (zh) 一种缝纫机的送料驱动机构
CN110241518A (zh) 一种缝纫机
CN215328712U (zh) 一种送料勾线机构及缝纫机
CN201099750Y (zh) 新型绗缝刺绣机
CN210856600U (zh) 一种地毯机针机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20909317

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20909317

Country of ref document: EP

Kind code of ref document: A1