CN115182110A - Modular sewing machine - Google Patents
Modular sewing machine Download PDFInfo
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- CN115182110A CN115182110A CN202110362570.5A CN202110362570A CN115182110A CN 115182110 A CN115182110 A CN 115182110A CN 202110362570 A CN202110362570 A CN 202110362570A CN 115182110 A CN115182110 A CN 115182110A
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- 238000009958 sewing Methods 0.000 title claims abstract description 93
- 230000005540 biological transmission Effects 0.000 claims abstract description 137
- 230000007246 mechanism Effects 0.000 claims abstract description 125
- 239000004744 fabric Substances 0.000 claims abstract description 112
- 238000005520 cutting process Methods 0.000 claims description 99
- 230000033001 locomotion Effects 0.000 abstract description 11
- 241000282472 Canis lupus familiaris Species 0.000 description 44
- 238000009966 trimming Methods 0.000 description 31
- 230000009471 action Effects 0.000 description 25
- 239000000463 material Substances 0.000 description 9
- 108010081870 CAM741 Proteins 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/10—Electrical or electromagnetic drives
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- 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
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/24—Feed-dog lifting and lowering devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B49/00—Take-up devices, e.g. levers, for the needle thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
- D05B57/36—Driving-gear for loop takers in lock-stitch sewing machines
- D05B57/38—Shuttle drives
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a modularized sewing machine, which comprises a tooth frame, a cloth feeding tooth, a cloth pricking module, a thread picking module, a tooth lifting thread hooking module and a cloth feeding module, wherein the tooth frame is arranged on the upper surface of the cloth feeding tooth; the cloth pricking module comprises a cloth pricking driving source, a needle rod, a machine needle and a cloth pricking transmission mechanism; the take-up module comprises a take-up driving source, a take-up lever and a take-up transmission mechanism; the tooth lifting and hooking module comprises a tooth lifting and hooking driving source, a rotating shuttle, a tooth lifting connecting part and a tooth lifting and hooking transmission mechanism, wherein the tooth lifting and hooking driving source is arranged on the tooth rack; the cloth feeding module comprises a cloth feeding driving source, a tooth frame seat connected with the tooth frame and a cloth feeding transmission mechanism; the barbed cloth module, the thread picking module, the tooth lifting and thread hooking module and the cloth feeding module are four mutually independent functional modules, and the barbed cloth driving source, the thread picking driving source, the tooth lifting and thread hooking driving source and the cloth feeding driving source are four mutually independent driving sources. This application has shortened the driving chain of each functional module, avoids because of vibration, the noise scheduling problem that the driving chain overlength caused, can also adjust each functional module's relative motion chronogenesis, promotes sewing adaptability.
Description
Technical Field
The invention relates to the field of sewing machines, in particular to a modular sewing machine.
Background
The sewing machine has four basic actions of material needling action, thread picking action, feeding action and thread hooking action, can realize basic sewing of sewing materials, and is added with some auxiliary actions, such as thread cutting action, presser foot lifting action, thread loosening action, needle pitch adjusting action and the like. At present, a sewing machine in the prior art is configured as shown in fig. 1, and mainly includes a main motor, a main shaft 100 driven to rotate by the main motor, a cloth pricking and thread taking-up mechanism 200, a feeding mechanism 300, a thread hooking mechanism 400, a thread cutting mechanism 500, and a presser foot lifting mechanism 600, wherein the cloth pricking and thread taking-up mechanism 200, the feeding mechanism 300, and the thread hooking mechanism 400 are all driven to operate by the main shaft 100, a thread cutting cam in the thread cutting mechanism 500 is driven to rotate by a lower shaft in the thread hooking mechanism 400, the thread cutting mechanism 500 has a thread cutting driving source 501 independent of the main motor, and the presser foot lifting mechanism 600 has a presser foot lifting driving source 601 independent of the main motor. When the sewing machine in the prior art operates, the main motor drives the main shaft 100 to rotate, the main shaft 100 drives the cloth-pricking and thread-taking-up mechanism 200, the feeding mechanism 300 and the thread-hooking mechanism 400 to operate, and the cloth-pricking and thread-taking-up mechanism 200, the feeding mechanism 300 and the thread-hooking mechanism 400 cooperatively act to complete sewing; when the thread needs to be cut, the thread cutting driving source 501 acts to enable the transmission component in the thread cutting mechanism 500 to be matched with the thread cutting cam, the main shaft 100 rotates to enable the lower shaft in the thread hooking mechanism 400 to rotate, and therefore the thread cutting mechanism 500 executes the thread cutting action; when the presser foot needs to be lifted, the presser foot lifting drive source 601 operates to cause the presser foot lifting mechanism 600 to perform the presser foot lifting operation. However, the existing sewing machine has the following disadvantages:
1. the transmission structure is very complex; the power of the cloth pricking and thread taking-up mechanism 200, the feeding mechanism 300, the thread hooking mechanism 400 and the thread trimming mechanism 500 is from the main shaft 100, or the power sources of the cloth pricking and thread taking-up mechanism 200, the feeding mechanism 300, the thread hooking mechanism 400 and the thread trimming mechanism 500 are main motors, so that the cloth pricking and thread taking-up mechanism 200, the feeding mechanism 300 and the thread hooking mechanism 400 are in linkage relation during sewing; during thread cutting, the cloth-pricking and thread-taking-up mechanism 200, the feeding mechanism 300, the thread hooking mechanism 400 and the thread cutting mechanism 500 are in linkage relation, so that relative motion time sequences among the mechanisms are uniquely determined, a user cannot adjust the relative motion time sequences, and the sewing adaptability to different types of fabrics is poor.
2. The sewing machine uses a main motor as a main power source, and respectively transmits power to terminal executive components such as a needle bar and a take-up lever in a cloth pricking and taking-up mechanism 200, a cloth feeding tooth in a feeding mechanism 300, a rotating shuttle in a thread hooking mechanism 400 and a moving blade in a thread cutting mechanism 500 through a relatively complex transmission structure, and an independent thread cutting driving source 501 and a presser foot lifting driving source 601 are additionally arranged for matching actions, so that additional functions such as thread cutting and presser foot lifting are realized. Therefore, the whole structure of the sewing machine is complex, the transmission chain is long, and adverse effects such as vibration, noise and the like are easily caused; such as: the high-speed rotation of the two longer feed lifting connecting rods and the cloth feeding connecting rod in the feeding mechanism 300 causes larger noise and is extremely easy to wear; the overlong transmission chain can cause that the assembly precision of a moving part, the part machining precision requirement and the like can not be accurately ensured.
3. The structure of the shell is complex, and the requirement on manufacturing precision is high; the machine shell is divided into an upper section and a lower section, in order to realize that the power of the upper section is transmitted to the lower section and is transmitted from the right end of the machine shell to the left end of the machine shell, the feed lifting shaft and the feed shaft in the opposite feed mechanism 300, and the lower main shaft in the thread hooking mechanism 400 is communicated from the right end of the machine shell to the left end of the machine shell through the whole shaft, so that the requirements on the coaxiality, the concentricity and the precision of corresponding mounting holes in the machine shell are very high, and the machine shell needs to be applied to some special processing equipment and tool fixtures.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a modular sewing machine, in which each function mechanism in the sewing machine is modularized and has an independent driving source, thereby shortening a transmission chain and enabling selection and combination of each function and adjustment of relative movement timing.
In order to achieve the above object, the present invention provides a modular sewing machine including a feed dog mounted on a feed dog and a feed dog, the modular sewing machine further including:
a burling module: the needle bar driving device comprises a burling driving source, a needle bar capable of reciprocating up and down, a machine needle arranged at the lower end of the needle bar and a burling transmission mechanism, wherein the burling driving source is connected with the needle bar through the burling transmission mechanism;
a thread take-up module: the take-up driving source is connected with the take-up lever through the take-up transmission mechanism;
the tooth lifting thread hooking module: the thread lifting hook driving source is connected with the rotary shuttle and the thread lifting connecting part of the tooth rack through the thread lifting hook transmission mechanism;
a cloth feeding module: the feed mechanism comprises a feed driving source, a tooth frame seat connected with the other end of the tooth frame and a feed transmission mechanism, wherein the feed driving source is connected with the tooth frame seat through the feed transmission mechanism;
the cloth pricking module, the thread picking module, the tooth lifting and hooking module and the cloth feeding module are four mutually independent functional modules, and the cloth pricking driving source, the thread picking driving source, the tooth lifting and hooking driving source and the cloth feeding driving source are four mutually independent driving sources.
Furthermore, the modularized sewing machine further comprises an auxiliary function module independent of the burling module, the thread taking-up module, the tooth lifting and hooking module and the cloth feeding module, the auxiliary function module comprises an auxiliary driving source independent of the burling driving source, the thread taking-up driving source, the tooth lifting and hooking driving source and the cloth feeding driving source, a terminal execution part and an intermediate transmission mechanism, and the auxiliary driving source is connected with the terminal execution part through the intermediate transmission mechanism.
Further, the terminal actuating component comprises a thread cutting component and a foot lifting component, and the intermediate transmission mechanism comprises a thread cutting transmission mechanism connected between the auxiliary driving source and the thread cutting component and a foot lifting mechanism connected between the auxiliary driving source and the foot lifting component.
The thread cutting mechanism comprises a thread cutting cam, a thread cutting roller, a first thread cutting crank shaft, a first thread cutting crank, a thread cutting slider, a second thread cutting crank shaft, a second thread cutting connecting rod and a movable cutter frame, wherein the thread cutting cam, the thread cutting roller, the first thread cutting crank shaft, the second thread cutting connecting rod and the movable cutter frame are driven by an auxiliary driving source to rotate, the first thread cutting crank shaft, the second thread cutting connecting rod and the movable cutter frame are rotatably supported in a sewing machine shell, the first thread cutting driving arm extends out of the first thread cutting crank shaft, the thread cutting roller is rotatably mounted on the first thread cutting driving arm and is in contact fit with the thread cutting cam, the second thread cutting driving arm extends out of the second thread cutting crank shaft, the thread cutting slider is hinged to the first thread cutting crank shaft and is in sliding fit with a thread cutting chute in the second thread cutting driving arm, two ends of the thread cutting connecting rod are respectively hinged to the second thread cutting crank and the movable cutter frame, and the movable cutter frame is fixed to the movable cutter frame.
The presser foot lifting mechanism comprises a presser foot lifting cam, a presser foot lifting roller, a presser foot lifting driving shaft, a presser foot lifting crank, a first pull rod, a right lever, a second pull rod, a left lever, a presser foot lifting plate, a pressure rod guide frame and a vertically extending pressure rod, wherein the presser foot lifting driving shaft is rotatably supported in a sewing machine shell, the presser foot lifting crank is fixed on the presser foot lifting driving shaft, the right lever is provided with a first fixed swing fulcrum, the left lever is provided with a second fixed swing fulcrum, the presser foot lifting plate is provided with a presser foot lifting driving arm, the presser foot lifting roller is rotatably arranged on the presser foot lifting driving arm and is in contact fit with the presser foot lifting cam, two ends of the first pull rod are respectively hinged with the presser foot lifting crank and the right lever, two ends of the second pull rod are respectively hinged with the right lever and the left lever, the left lever is hinged with the upper end of the presser foot lifting plate, the presser foot lifting plate is provided with a lifting hook part, the presser foot guide frame is provided with a connecting protrusion part clamped with the lifting phase, the pressure rod guide frame is fixed at the upper end of the presser foot, and the lower end of the presser rod of the presser foot.
Further, the auxiliary driving source is a motor.
Furthermore, the burling transmission mechanism comprises an upper shaft driven by a burling driving source to rotate, a needle rod crank fixed on the upper shaft, a burling transmission shaft and a crank slider mechanism, the burling transmission shaft is provided with a first shaft part eccentric to the upper shaft and a second shaft part eccentric to the first shaft part, the first shaft part is fixed on the needle rod crank, and the second shaft part is connected with the needle rod through the crank slider mechanism.
Furthermore, the thread take-up transmission mechanism comprises a first thread take-up crank, a thread take-up connecting rod, a second thread take-up crank and a thread take-up transmission shaft which are driven to rotate by a thread take-up driving source, two ends of the thread take-up connecting rod are respectively in running fit with the first thread take-up crank and the second thread take-up crank, and the second thread take-up crank and the thread take-up rod are both fixed on the thread take-up transmission shaft.
Further, the feed dog thread transmission mechanism comprises a lower shaft and a feed dog shaft both rotatably supported in the sewing machine housing, a shaft transmission unit connected between the lower shaft and the feed dog shaft, and a feed dog transmission unit connected between the feed dog shaft and a feed dog connecting portion of the feed dog frame, the lower shaft or the feed dog shaft being in transmission connection with the feed dog thread driving source and driven to rotate by the feed dog thread driving source, the shaft transmission unit making a rotation speed ratio of the lower shaft to the feed dog shaft 2, the rotary shuttle being fixed to an end portion of the lower shaft.
Further, the shaft transmission unit comprises a first belt wheel fixed on the lower shaft, a second belt wheel fixed on the feed lifting shaft and a transmission belt connecting the first belt wheel and the second belt wheel.
Further, the shaft transmission unit includes a first gear fixed to the feed lifting shaft, and a second gear fixed to the lower shaft, the first gear being engaged with the second gear.
Furthermore, the tooth lifting transmission unit comprises a first tooth lifting eccentric wheel fixed on the tooth lifting shaft and a first tooth lifting connecting rod, the first tooth lifting eccentric wheel is provided with a first tooth lifting eccentric shaft part eccentric to the tooth lifting shaft, one end of the first tooth lifting connecting rod is rotatably arranged on the first tooth lifting eccentric shaft part, and the other end of the first tooth lifting connecting rod is hinged with the tooth lifting connecting part of the tooth frame.
Furthermore, the feed lifting transmission unit comprises a second feed lifting eccentric wheel fixed on the feed lifting shaft, a second feed lifting connecting rod, a feed lifting transmission shaft parallel to the feed lifting shaft, a feed lifting swing rod fixed at one end of the feed lifting transmission shaft, a feed lifting crank fixed at the other end of the feed lifting transmission shaft, and a third feed lifting connecting rod, wherein the second feed lifting eccentric wheel is provided with a second feed lifting eccentric shaft part eccentric to the feed lifting shaft, one end of the second feed lifting connecting rod is rotatably arranged at the second feed lifting eccentric shaft part, the other end of the second feed lifting connecting rod is hinged with the feed lifting swing rod, and two ends of the third feed lifting connecting rod are respectively hinged with the feed lifting crank and the feed lifting connecting part of the tooth frame.
Furthermore, the feed lifting transmission unit comprises a second feed lifting eccentric wheel fixed on the feed lifting shaft, a second feed lifting connecting rod, a feed lifting transmission shaft parallel to the feed lifting shaft, a feed lifting swing rod fixed at one end of the feed lifting transmission shaft, a feed lifting fork-shaped crank fixed at the other end of the feed lifting transmission shaft, and a feed lifting slider, wherein the second feed lifting eccentric wheel is provided with a second feed lifting eccentric shaft part eccentric to the feed lifting shaft, one end of the second feed lifting connecting rod is rotatably arranged at the second feed lifting eccentric shaft part, the other end of the second feed lifting connecting rod is hinged with the feed lifting swing rod, a feed lifting chute in sliding fit with the feed lifting slider is arranged in the feed lifting fork-shaped crank, and the feed lifting slider is hinged with the feed lifting connecting part of the tooth frame.
Furthermore, the cloth feeding transmission mechanism comprises a cloth feeding crank and a cloth feeding connecting rod, wherein the cloth feeding crank is driven by a cloth feeding driving source to rotate, and two ends of the cloth feeding connecting rod are respectively hinged with the cloth feeding crank and the tooth frame seat.
Further, the cloth pricking driving source, the thread picking driving source, the tooth lifting and hooking driving source and the cloth feeding driving source are all motors.
As described above, the modular sewing machine according to the present invention has the following advantageous effects:
this application is with the thorn cloth functional structure in the sewing machine, the thread picking functional structure, the tooth lifting colludes line functional structure and the work feed functional structure all modularization, every functional module all adopts independent driving source to drive, make thorn cloth module, the thread picking module, the tooth lifting colludes mutually independent between line module and the work feed module, mutual noninterference, the driving chain of each functional module has been shortened on the one hand, avoid because of the vibration that the driving chain overlength caused, noise, the difficult processing scheduling problem of casing, on the other hand can adjust the relative motion chronogenesis of each functional module, promote sewing adaptability greatly from this.
Drawings
Fig. 1 is a schematic view showing a structure of a sewing machine in the prior art.
Fig. 2 and 3 are schematic views of the modular sewing machine of the present application at different viewing angles.
FIG. 4 is a schematic view of a cloth needling module of a first embodiment of a modular sewing machine.
FIG. 5 is a schematic view of a thread take-up module in an embodiment of the modular sewing machine.
FIG. 6 is a schematic structural diagram of a feed lifting module in an embodiment of a modular sewing machine.
FIG. 7 is a schematic view of a cloth feeding module in a first embodiment of the modular sewing machine.
FIG. 8 is a schematic diagram of an auxiliary function module in a first embodiment of the modular sewing machine.
Fig. 9a to 9d are schematic diagrams of feed tracks of feed dogs in the present application.
FIG. 10 is a schematic view of a second embodiment of a modular sewing machine according to the present application, shown from a different perspective.
FIG. 11 is a schematic structural diagram of a feed dog transmission unit in a third embodiment of the modular sewing machine of the present application.
Description of the element reference numerals
10. Tooth holder
20. Feed dog
30. Cloth-pricking module
31. Driving source for barbed cloth
32. Needle bar
33. Needle
34. Upper shaft
35. Needle bar crank
36. Barbed cloth transmission shaft
40. Thread take-up module
41. Thread take-up driving source
42. Thread take-up lever
43. First thread take-up crank
44. Thread take-up connecting rod
45. Second thread take-up crank
46. Thread take-up transmission shaft
50. Tooth lifting thread hooking module
51. Tooth lifting and thread hooking driving source
52. Rotating shuttle
54. Lower shaft
55. Feed lifting rock shaft
57. First pulley
58. Second belt wheel
59. Transmission belt
510. First gear
511. Second gear
512. First feed lifting eccentric wheel
513. First tooth lifting connecting rod
514. Second eccentric cam of lifting tooth
515. Second lifting tooth connecting rod
516. Feed lifting transmission shaft
517. Swing rod for lifting tooth
518. Feed lifting rock shaft crank
519. Third feed lifting connecting rod
520. Feed lifting fork shaped crank
521. Feed lifting slider
60. Cloth feeding module
61. Cloth feeding driving source
62. Dental articulator holder
63. Cloth feeding crank
64. Cloth feeding connecting rod
70. Auxiliary function module
71. Thread trimming component
711. Stationary knife
712. Moving knife
72. Foot lifting and pressing part
721. Presser foot
73. Trimming transmission mechanism
731. Thread trimming cam
732. Thread trimming roller
733. First trimming crank axle
734. First trimming crank
735. Thread trimming slide block
736. Second trimming crank axle
737. Second trimming crank
738. Trimming connecting rod
739. Movable tool holder
74. Lift presser foot mechanism
741. Cam for lifting presser foot
742. Pressure foot lifting roller
743. Lift presser foot drive shaft
744. Crank for lifting presser foot
745. First pull rod
746. Right lever
747. Second pull rod
748. Left lever
749. Lift presser foot lifting plate
7410. Pressure bar guide frame
7411. Pressure lever
75. Auxiliary driving source
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described in the specification are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for descriptive purposes only and are not intended to limit the scope of the present invention, and the relative relationship between the terms may be changed or adjusted without substantial technical change.
As shown in fig. 2 and 3, the present application provides a modular sewing machine including a thread guide 10, a feed dog 20 fixedly installed on the thread guide 10, a pierce module 30, a thread take-up module 40, a thread lifting and hooking module 50, and a feed module 60. For convenience of description, in the following embodiments, the length direction of the modular sewing machine is defined as the left-right direction, the width direction of the modular sewing machine is defined as the front-back direction, and the height direction of the modular sewing machine is defined as the up-down direction; meanwhile, the left direction is the direction towards the machine head of the modular sewing machine, the right direction is the direction towards the machine tail of the modular sewing machine, and the front direction is the moving direction of cloth when the modular sewing machine is used for sewing.
Embodiment one of the modular sewing machine
In the first embodiment of the modular sewing machine, as shown in fig. 4, the needle bar module 30 includes a needle bar 32, a needle bar 31, a needle 33 and a needle driving mechanism, the needle bar 32 is disposed at a lower end of the needle bar 32, and the needle driving source 31 is connected to the needle bar 32 through the needle driving mechanism to drive the needle bar 32 to move. As shown in fig. 5, the thread take-up module 40 includes a thread take-up driving source 41, a thread take-up lever 42 capable of oscillating up and down, and a thread take-up transmission mechanism, and the thread take-up driving source 41 is connected to the thread take-up lever 42 through the thread take-up transmission mechanism to drive the thread take-up lever 42 to move. As shown in fig. 6, the tooth lifting hook thread module 50 includes a tooth lifting hook thread driving source 51, a rotatable rotating hook 52, a tooth lifting coupling portion 101 disposed at a rear end of the dental articulator 10, and a tooth lifting hook thread transmission mechanism, wherein the tooth lifting hook thread driving source 51 is connected to the rotating hook 52 and the tooth lifting coupling portion 101 of the dental articulator 10 through the tooth lifting hook thread transmission mechanism, and drives the rotating hook 52 and the tooth lifting coupling portion 101 to move. As shown in fig. 7, the cloth feeding module 60 includes a cloth feeding driving source 61, a dental articulator holder 62 connected to a front end of the dental articulator 10, and a cloth feeding transmission mechanism, and the cloth feeding driving source 61 is connected to the dental articulator holder 62 through the cloth feeding transmission mechanism to drive the dental articulator 10 to move. The stab module 30, the thread take-up module 40, the pick hook module 50 and the cloth feeding module 60 are four independent functional modules, and the stab driving source 31, the thread take-up driving source 41, the pick hook driving source 51 and the cloth feeding driving source 61 are four independent driving sources.
When the modular sewing machine operates, the burling driving source 31, the thread taking-up driving source 41, the tooth lifting and thread hooking driving source 51 and the cloth feeding driving source 61 all act, the burling driving source 31 drives the needle rod 32 to reciprocate up and down through the burling transmission mechanism, and the needle rod 32 drives the machine needle 33 to reciprocate up and down to execute burling action; the upper thread passes through the take-up lever 42, and the take-up driving source 41 drives the take-up lever 42 to swing up and down in a reciprocating manner through the take-up transmission mechanism to execute a take-up action; the tooth lifting and thread hooking driving source 51 drives the rotating shuttle 52 to rotate through the tooth lifting and thread hooking transmission mechanism to carry out thread hooking action; the tooth lifting hook wire driving source 51 drives the tooth lifting connecting part 101 to reciprocate up and down through the tooth lifting hook wire transmission mechanism, and the tooth lifting connecting part 101 drives the tooth frame 10 and the feed dog 20 to reciprocate up and down together to perform tooth lifting action; the feed driving source 61 drives the tooth frame base 62 to move through the feed transmission mechanism, and the tooth frame base 62 drives the tooth frame 10 and the feed dog 20 to reciprocate back and forth together to perform a feed operation. Thus, the cloth pricking module 30, the thread taking-up module 40, the tooth lifting and hooking module 50 and the cloth feeding module 60 cooperate to complete sewing. Particularly, the cloth stabbing module 30, the thread picking module 40, the tooth lifting and hooking module 50 and the cloth feeding module 60 are functional modules of the sewing machine, the cloth stabbing module 30, the thread picking module 40, the tooth lifting and hooking module 50 and the cloth feeding module 60 in the application are modularized, each functional module is driven by an independent driving source, the cloth stabbing module 30, the thread picking module 40, the tooth lifting and hooking module 50 and the cloth feeding module 60 are independent and do not interfere with each other, a transmission structure between the upper shaft 34 and other functional modules in the original sewing machine is eliminated, on one hand, a transmission chain of each functional module is shortened, the problems of vibration, noise and the like caused by overlong transmission chains are avoided, on the other hand, relative motion time sequences and motion rules of each functional module can be adjusted, for example, the morning and evening of the thread hooking time of the rotating shuttle 52 relative to the machine needle 33 can be adjusted, the motion trail of the cloth feeding tooth 20 can be adjusted, and therefore sewing adaptability is greatly improved.
Further, as shown in fig. 2 and 3, the modular sewing machine further includes an auxiliary function module 70, the auxiliary function module 70 is independent from the cloth pricking module 30, the thread picking module 40, the tooth lifting and hooking module 50 and the cloth feeding module 60, that is, the auxiliary function module 70 is independent from and does not interfere with the cloth pricking module 30, the thread picking module 40, the tooth lifting and hooking module 50 and the cloth feeding module 60, the function of the auxiliary function module 70 is independent from the cloth pricking module 30, the thread picking module 40, the tooth lifting and hooking module 50 and the cloth feeding module 60, and the auxiliary function module 70 can realize various predetermined sewing execution actions, such as presser foot lifting, thread cutting, presser foot 721 pressure adjustment, thread loosening and the like. Therefore, the auxiliary function module 70 includes an auxiliary driving source 75, a terminal actuator, and an intermediate transmission mechanism, the auxiliary driving source 75 is independent of the stab driving source 31, the thread take-up driving source 41, the pick thread driving source 51, and the feed driving source 61, and the auxiliary driving source 75 is connected to the terminal actuator through the intermediate transmission mechanism. In this embodiment, the auxiliary function module 70 is used for performing a presser foot lifting action and a thread trimming action; based on this, the terminal actuating member includes a thread cutting member 71 and a foot lifting member 72, and the intermediate transmission mechanism includes a thread cutting transmission mechanism 73 connected between an auxiliary driving source 75 and the thread cutting member 71, and a foot lifting mechanism 74 connected between the auxiliary driving source 75 and the foot lifting member 72.
Preferably, the auxiliary drive source 75 is a motor, and the motor constituting the auxiliary drive source 75 is a biaxial motor.
Further, as shown in fig. 8, the thread cutting member 71 includes a fixed cutter 711 fixed in position and a rotatable movable cutter 712, the thread cutting transmission mechanism 73 includes a thread cutting cam 731 fixed on a motor shaft on a left side of the auxiliary driving source 75, a thread cutting roller 732, a first thread cutting crank 733 rotatably supported in the sewing machine housing and extending left and right, a first thread cutting crank 734 fixed on a left end of the first thread cutting crank 733, a thread cutting slider 735, a second thread cutting crank 736 rotatably supported in the sewing machine housing and extending left and right, a second thread cutting crank 737 fixed on a left end of the second thread cutting crank 736, a thread cutting connecting rod 738, and a movable cutter 739, a first thread cutting driving arm is integrally extended from a right end of the first thread cutting crank 733, the thread cutting roller 732 is rotatably mounted on the first thread cutting driving arm 731 and is in contact fit with the thread cutting cam 731, a second thread cutting arm is integrally extended from a right end of the second thread cutting crank 736, the thread cutting slider is hinged to the first thread cutting driving arm 735 and is in contact fit with the thread cutting crank driving arm 731 extending left and right in the second thread cutting crank sliding fit with the movable cutter 739, and the movable cutter crank 739 are respectively fixed to the movable cutter 712 and the movable cutter holder 739. In addition, the profile surface of the trimming cam 731, which is in contact fit with the trimming roller 732, includes a first reducing driving section and a first avoiding section, and the first avoiding section may be an equal-diameter surface.
Further, as shown in fig. 8, the presser foot lifting member 72 includes a presser foot 721 capable of moving up and down, the presser foot lifting mechanism 74 includes a presser foot lifting cam 741 fixed to a motor shaft on the right side of the auxiliary drive source 75, a presser foot lifting roller 742, a presser foot lifting drive shaft 743 rotatably supported in the sewing machine housing and extending left and right, a presser foot lifting crank 744 fixed to the right end of the presser foot lifting drive shaft 743, a first pull rod 745 extending up and down, a right lever 746 having a first fixed swing fulcrum, a second pull rod 747 extending left and right, a left lever 748 having a second fixed swing fulcrum, a presser foot lifting plate 749, a presser bar guide 7410, and a presser bar 7411 extending up and down, a presser foot lifting drive arm is integrally extended from the left end of the presser foot lifting drive shaft 743, the presser foot lifting roller 742 is rotatably mounted to the presser foot lifting drive arm and in contact engagement with the presser foot lifting cam 741, both ends of the first pull rod are respectively hinged to the presser foot lifting crank 744 and the right lever 7411, both ends of the second pull rod 747 are respectively hinged to the right lever 746 and the left lever, the presser foot lifting roller is hinged to the presser foot 749, the upper end of the presser foot lifting lever 7410, and the lifting lever 7410 are mounted to the presser foot guide protrusion 7411, and the lifting lever 7410 is mounted to the presser foot 7410. In addition, the profile surface of the pressure raising and pressing foot cam 741 in contact with and matched with the pressure raising and pressing foot roller 742 comprises a second reducing driving section and a second avoiding section, and the second avoiding section can be a groove.
When the auxiliary function module 70 executes the thread trimming operation, the auxiliary driving source 75 operates to drive the thread trimming cam 731 and the presser foot lifting cam 741 to rotate together; the first reducing driving section on the trimming cam 731 is in contact fit with the trimming roller 732 to push the first trimming crank shaft 733 to swing, and further push the second trimming crank shaft 736 to swing through the first trimming crank 734 and the trimming slider 735, and drive the movable knife holder 739 and the movable knife 712 to rotate through the second trimming crank 737 and the trimming connecting rod 738, so that the movable knife 712 rotates in a direction approaching the fixed knife 711, and the movable knife 712 and the fixed knife 711 are engaged to cut a suture, thereby performing a trimming operation; in this process, the second avoiding section on the presser foot lifting cam 741 is matched with the presser foot lifting roller 742, so that the presser foot lifting drive shaft 743 is not pushed to swing, and therefore the presser foot 721 is not lifted upwards, and the interference to the presser foot lifting mechanism 74 is avoided.
When the auxiliary function module 70 executes the presser foot lifting action, the auxiliary driving source 75 acts to drive the trimming cam 731 and the presser foot lifting cam 741 to rotate together; the second reducing driving section on the presser foot lifting cam 741 is in contact fit with the presser foot lifting roller 742, the presser foot lifting driving shaft 743 is pushed to swing, the right lever 746 is driven to rotate around a first fixed swing fulcrum through the presser foot lifting crank 744 and the first pull rod 745, the right lever 746 drives the left lever 748 to rotate around a second fixed swing fulcrum through the second pull rod 747, the presser foot lifting plate 749 is pulled upwards, and the press rod guide frame 7410, the press rod 7411 and the presser foot 721 are driven to move upwards, so that the presser foot lifting action is executed; in this process, the first avoiding section of the trimming cam 731 is matched with the trimming roller 732, and does not push the first trimming crank shaft 733 to swing, so that the movable knife 712 does not rotate, and the interference to the trimming transmission mechanism 73 is avoided.
Further, the burry driving source 31 is a motor; as shown in fig. 4, the bur driving mechanism includes an upper shaft 34 driven to rotate by the bur driving source 31, a needle bar crank 35 fixed to the left end of the upper shaft 34, a bur driving shaft 36, and a crank slider mechanism, the upper shaft 34 extends left and right, the right end of the upper shaft 34 is connected to the motor shaft of the bur driving source 31 through a coupling, the bur driving shaft 36 has a first shaft portion eccentric to the upper shaft 34 and a second shaft portion eccentric to the first shaft portion, the second shaft portion is also eccentric to the upper shaft 34, the first shaft portion is fixed to the needle bar crank 35, and the second shaft portion is connected to the needle bar 32 through the crank slider mechanism. The upper shaft 34 is driven by the cloth-stabbing driving source 31 to rotate, the upper shaft 34 drives the needle rod crank 35 and the cloth-stabbing transmission shaft 36 to rotate together around the central axis of the upper shaft 34, the cloth-stabbing transmission shaft 36 drives the needle rod 32 to reciprocate up and down through the slider-crank mechanism, and the needle rod 32 drives the needle 33 to reciprocate up and down to execute cloth-stabbing actions. The structure of the crank-slider mechanism can be seen in the sewing machine disclosed in the Chinese invention patent application with the application number of 202010307710.4.
Further, the take-up driving source 41 is a motor; as shown in fig. 5, the thread take-up transmission mechanism includes a first thread take-up crank 43 fixed on the motor shaft of the thread take-up driving source 41, a thread take-up link 44, a second thread take-up crank 45, and a thread take-up transmission shaft 46 extending forward and backward, both ends of the thread take-up link 44 are respectively rotatably engaged with the first thread take-up crank 43 and the second thread take-up crank 45, the second thread take-up crank 45 is fixed at the front end of the thread take-up transmission shaft 46, and the thread take-up lever 42 is fixed at the rear end of the thread take-up transmission shaft 46. When the thread take-up driving source 41 rotates, the first thread take-up crank 43 is driven to rotate together, the second thread take-up crank 45 is driven to swing through the thread take-up connecting rod 44, and the thread take-up lever 42 is driven to swing up and down in a reciprocating manner through the thread take-up transmission shaft 46 to perform a thread take-up operation.
Further, the tooth lifting hook wire driving source 51 is a motor; as shown in fig. 6, the feed dog thread transmission mechanism includes a lower shaft 54 and a feed dog shaft 55 both rotatably supported in the sewing machine housing, a shaft transmission unit connected between the lower shaft 54 and the feed dog shaft 55, and a feed dog transmission unit connected between the feed dog shaft 45 and the feed dog connecting portion 101 of the feed dog frame 10, the lower shaft 54 and the feed dog shaft 55 both extending left and right, the shaft transmission unit making the rotation speed ratio of the lower shaft 54 and the feed dog shaft 55 2, and a rotary hook 52 fixed to the left end of the lower shaft 54. Preferably, a motor shaft of the feed lifting hook wire driving source 51 is connected with the right end of the feed lifting shaft 55 through a coupling to directly drive the feed lifting shaft 55 to rotate; the shaft transmission unit includes a first pulley 57 fixed to the lower shaft 54, a second pulley 58 fixed to the feed lifting shaft 55, and a transmission belt 59 connecting the first pulley 57 and the second pulley 58. The feed dog transmission unit comprises a first feed dog eccentric 512 fixed at the left end of the feed dog shaft 55, and a first feed dog connecting rod 513, wherein the first feed dog eccentric 512 has a first feed dog eccentric shaft part eccentric to the feed dog shaft 55, one end of the first feed dog connecting rod 513 is rotatably mounted on the first feed dog eccentric shaft part, and the other end is hinged with the feed dog connecting part 101 of the dental articulator 10. When the feed lifting hook wire driving source 51 rotates, the feed lifting shaft 55 is driven to rotate, and the feed lifting shaft 55 drives the tooth rack 10 and the feed delivery 20 to reciprocate up and down through the first feed lifting eccentric wheel 512 and the first feed lifting connecting rod 513 to perform feed lifting action; meanwhile, the feed lifting shaft 55 drives the lower shaft 54 to rotate circumferentially around the central axis thereof through the shaft transmission unit, and the lower shaft 54 drives the rotating shuttle 52 to rotate, thereby executing the thread hooking action.
Further, the cloth feeding driving source 61 is a motor; as shown in fig. 7, the cloth feeding transmission mechanism includes a cloth feeding crank 63 having one end fixed to the motor shaft of the cloth feeding driving source 61, and a cloth feeding link 64, and both ends of the cloth feeding link 64 are respectively hinged to the other end of the cloth feeding crank 63 and the dental articulator holder 62. When the cloth feeding driving source 61 rotates, the cloth feeding crank 63 is driven to rotate, and the feed dog 10 and the feed dog 20 are driven to reciprocate back and forth by the cloth feeding connecting rod 64 and the feed dog seat 62, so that cloth feeding is performed.
In the modular sewing machine, the relative time sequence of the feed lifting tooth thread hooking driving source 51 and the bur cloth driving source 31 is adjusted, so that the thread hooking time of the rotating shuttle 52 relative to the machine needle 33 can be adjusted to be earlier when thin materials are sewn and later when thick materials are sewn. The relative time sequence of the thread take-up driving source 41 and the cloth pricking driving source 31 is adjusted, so that the morning and evening of the thread take-up action can be adjusted; the swing amplitude of the take-up lever 42 which swings up and down can be adjusted by adjusting the output rotation angle of the take-up driving source 41, so that the take-up amount is adjusted; generally, when sewing a thin material, the thread take-up operation is relatively late and the thread take-up amount is small, and when sewing a thick material, the thread take-up operation is relatively early and the thread take-up amount is large. The feed dog 20 performs a combined motion of up-down reciprocating movement and back-and-forth reciprocating movement, the output rule of the feed drive source 61 relative to the feed lifting hook line drive source 51 is adjusted, and the feed trajectory of the feed dog 20 can be changed, for example, an elliptical feed trajectory as shown in fig. 9a, a front triangular feed trajectory as shown in fig. 9b, a rear triangular feed trajectory as shown in fig. 9c, or a rectangular feed trajectory as shown in fig. 9d can be realized, wherein the elliptical feed trajectory and the front triangular feed trajectory are suitable for sewing thin materials and medium-thick materials, and the rear triangular feed trajectory and the rectangular feed trajectory are suitable for sewing thick materials.
Modular sewing machine embodiment 2
The second embodiment of the modular sewing machine is different from the first embodiment of the modular sewing machine only in that: the structure of the middle shaft transmission unit and the structure of the tooth lifting thread hooking transmission mechanism are different. Specifically, in the second embodiment of the modular sewing machine, as shown in fig. 10, the shaft transmission unit includes a first gear 510 fixed to the feed lifting shaft 55 and a second gear 511 fixed to the lower shaft 54, the first gear 510 is engaged with the second gear 511, the right end of the feed lifting shaft 55 is fixedly connected to the motor shaft of the feed lifting hook driving source 51 through a coupling, and the feed lifting shaft 55 is directly driven to rotate by the feed lifting hook driving source 51. The feed lifting gear transmission unit comprises a second feed lifting gear eccentric wheel 514 fixed on the feed lifting gear shaft 55, a second feed lifting gear connecting rod 515, a feed lifting gear transmission shaft 516 parallel to the feed lifting gear shaft 55, a feed lifting gear swing rod 517 fixed at one end of the feed lifting gear transmission shaft 516, a feed lifting gear crank 518 fixed at the other end of the feed lifting gear transmission shaft 516 and a third feed lifting gear connecting rod 519, wherein the second feed lifting gear eccentric wheel 514 is provided with a second feed lifting gear eccentric shaft part eccentric to the feed lifting gear shaft 55, one end of the second feed lifting gear connecting rod 515 is rotatably arranged on the second feed lifting gear eccentric shaft part, the other end of the second feed lifting gear connecting rod 515 is hinged with the feed lifting gear swing rod 517, and two ends of the third feed lifting gear connecting rod 519 are respectively hinged with the feed lifting gear crank 518 and the feed lifting gear connecting part 101 of the tooth rack 10.
Modular sewing machine embodiment III
The third embodiment of the modular sewing machine is different from the second embodiment of the modular sewing machine only in that: the structures of the tooth lifting transmission units in the tooth lifting hook line transmission mechanism are different, and mainly the connection structures between the tooth lifting transmission shaft 516 and the tooth lifting connection part 101 of the tooth rack 10 are different. Specifically, in the third embodiment of the modular sewing machine, as shown in fig. 10 and 11, the lift tooth transmission unit includes a second lift tooth eccentric wheel 514 fixed to the lift tooth shaft 55, a second lift tooth connecting rod 515, a lift tooth transmission shaft 516 parallel to the lift tooth shaft 55, a lift tooth swinging rod 517 fixed to one end of the lift tooth transmission shaft 516, a lift tooth fork shaped crank 520 fixed to the other end of the lift tooth transmission shaft 516, and a lift tooth slider 521, the second lift tooth eccentric wheel 514 has a second lift tooth eccentric shaft part eccentric to the lift tooth shaft 55, one end of the second lift tooth connecting rod 515 is rotatably mounted to the second lift tooth eccentric shaft part, the other end of the second lift tooth eccentric shaft part is hinged to the lift tooth swinging rod 517, a lift tooth sliding groove slidably fitted to the lift tooth slider 521 is formed in the lift tooth fork shaped crank 520, and the lift tooth slider 521 is hinged to the lift tooth connecting part 101 of the handle 10.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (16)
1. A modular sewing machine comprising a feed dog (20) mounted on a feed dog (10) and a feed dog (10), characterized in that: the modular sewing machine further comprises:
a needling module (30): the needle bar device comprises a cloth pricking driving source (31), a needle bar (32) capable of moving up and down in a reciprocating manner, a machine needle (33) arranged at the lower end of the needle bar (32) and a cloth pricking transmission mechanism, wherein the cloth pricking driving source (31) is connected with the needle bar (32) through the cloth pricking transmission mechanism;
a thread take-up module (40): the automatic thread taking-up device comprises a thread taking-up driving source (41), a thread taking-up rod (42) capable of swinging up and down in a reciprocating manner and a thread taking-up transmission mechanism, wherein the thread taking-up driving source (41) is connected with the thread taking-up rod (42) through the thread taking-up transmission mechanism;
tooth lifting hook line module (50): the tooth lifting hook wire driving device comprises a tooth lifting hook wire driving source (51), a rotatable rotating shuttle (52), a tooth lifting connecting part (101) arranged at one end of a tooth rack (10) and a tooth lifting hook wire transmission mechanism, wherein the tooth lifting hook wire driving source (51) is connected with the rotating shuttle (52) and the tooth lifting connecting part (101) of the tooth rack (10) through the tooth lifting hook wire transmission mechanism;
cloth feeding module (60): the cloth feeding device comprises a cloth feeding driving source (61), a tooth frame seat (62) connected with the other end of a tooth frame (10) and a cloth feeding transmission mechanism, wherein the cloth feeding driving source (61) is connected with the tooth frame seat (62) through the cloth feeding transmission mechanism;
the cloth pricking module (30), the thread picking module (40), the tooth lifting and hooking module (50) and the cloth feeding module (60) are four mutually independent functional modules, and the cloth pricking driving source (31), the thread picking driving source (41), the tooth lifting and hooking driving source (51) and the cloth feeding driving source (61) are four mutually independent driving sources.
2. The modular sewing machine of claim 1, wherein: the auxiliary function module (70) is independent of the cloth pricking module (30), the thread picking module (40), the tooth lifting and hooking module (50) and the cloth feeding module (60), the auxiliary function module (70) comprises an auxiliary driving source (75) independent of the cloth pricking driving source (31), the thread picking driving source (41), the tooth lifting and hooking driving source (51) and the cloth feeding driving source (61), a terminal execution component and an intermediate transmission mechanism, and the auxiliary driving source (75) is connected with the terminal execution component through the intermediate transmission mechanism.
3. The modular sewing machine of claim 2, wherein: the terminal actuating component comprises a thread cutting component (71) and a foot lifting component (72), and the intermediate transmission mechanism comprises a thread cutting transmission mechanism (73) connected between an auxiliary driving source (75) and the thread cutting component (71) and a foot lifting mechanism (74) connected between the auxiliary driving source (75) and the foot lifting component (72).
4. The modular sewing machine of claim 3, wherein: the thread cutting component (71) comprises a fixed cutter (711) and a rotatable movable cutter (712), the thread cutting transmission mechanism (73) comprises a thread cutting cam (731) driven by an auxiliary driving source (75) to rotate, a thread cutting roller (732), a first thread cutting crank (733) rotatably supported in the sewing machine shell, a first thread cutting crank (734) fixed to the first thread cutting crank (733), a thread cutting slider (735), a second thread cutting crank (736) rotatably supported in the sewing machine shell, a second thread cutting crank (737) fixed to the second thread cutting crank (736), a thread cutting connecting rod (738) and a movable cutter (739), a first thread cutting driving arm extends from the first thread cutting crank (733), the thread cutting roller (732) is rotatably mounted on the first thread cutting crank (736) and is in contact fit with the thread cutting cam (731), a second driving arm extends from the second thread cutting crank (736), the thread cutting slider (735) is in contact with the first thread cutting crank (734), the thread cutting roller (732) is in sliding fit with the second thread cutting crank (737), and is hinged with the second thread cutting crank (738) and the movable cutter (739).
5. The modular sewing machine of claim 3, wherein: the presser foot lifting component (72) comprises a presser foot (721) capable of moving up and down, the presser foot lifting mechanism (74) comprises a presser foot lifting cam (741) driven by an auxiliary drive source (75) to rotate, a presser foot lifting roller (742), a presser foot lifting drive shaft (743) rotatably supported in a sewing machine shell, a presser foot lifting crank (744) fixed to the presser foot lifting drive shaft (743), a first pull rod (745), a right lever (746) with a first fixed swing fulcrum, a second pull rod (747), a left lever (748) with a second fixed swing fulcrum, a presser foot lifting plate (749), a pressure rod guide frame (7410) and a vertically extending pressure rod (7411), a presser foot lifting drive arm extends from the presser foot lifting drive shaft (743), the presser foot lifting roller (742) is rotatably mounted on the presser foot lifting drive arm and is in contact fit with the presser foot lifting cam (741), two ends of the first pull rod (745) are respectively hinged with the presser foot lifting crank (744) and the right lever (746), two ends of the second pull rod (7) are respectively hinged with the presser foot lifting crank (749) and the left lever (7410), a hook part of the lifting rod (7411) is connected with the lifting rod (7410), and the lifting rod (7410) is fixed on the lifting rod guide frame, the presser foot (721) is mounted at the lower end of the pressure lever (7411).
6. The modular sewing machine of claim 2, wherein: the auxiliary driving source (75) is a motor.
7. The modular sewing machine of claim 1, wherein: the cloth-pricking transmission mechanism comprises an upper shaft (34) driven to rotate by a cloth-pricking driving source (31), a needle rod crank (35) fixed on the upper shaft (34), a cloth-pricking transmission shaft (36) and a crank slider mechanism, wherein the cloth-pricking transmission shaft (36) is provided with a first shaft part eccentric to the upper shaft (34) and a second shaft part eccentric to the first shaft part, the first shaft part is fixed on the needle rod crank (35), and the second shaft part is connected with a needle rod (32) through the crank slider mechanism.
8. The modular sewing machine of claim 1, wherein: the thread take-up transmission mechanism comprises a first thread take-up crank (43), a thread take-up connecting rod (44), a second thread take-up crank (45) and a thread take-up transmission shaft (46), wherein the first thread take-up crank (43), the second thread take-up crank (44), the second thread take-up crank (45) and the thread take-up rod (42) are driven to rotate by a thread take-up driving source (41), two ends of the thread take-up connecting rod (44) are respectively in running fit with the first thread take-up crank (43) and the second thread take-up crank (45), and the second thread take-up crank (45) and the thread take-up rod (42) are fixed on the thread take-up transmission shaft (46).
9. The modular sewing machine of claim 1, wherein: the feed lifting tooth thread hooking transmission mechanism comprises a lower shaft (54) and a feed lifting tooth shaft (55) which are rotatably supported in a sewing machine shell, a shaft transmission unit connected between the lower shaft (54) and the feed lifting tooth shaft (55), and a feed lifting tooth transmission unit connected between the feed lifting tooth shaft (55) and a feed lifting tooth connecting part (101) of a tooth rack (10), wherein the lower shaft (54) or the feed lifting tooth shaft (55) is in transmission connection with a feed lifting tooth thread hooking driving source (51) and is driven to rotate by the feed lifting tooth thread hooking driving source (51), the shaft transmission unit enables the rotating speed ratio of the lower shaft (54) to the feed lifting tooth shaft (55) to be 2, and a rotating shuttle (52) is fixed at the end part of the lower shaft (54).
10. The modular sewing machine of claim 9, wherein: the shaft transmission unit comprises a first belt wheel (57) fixed on the lower shaft (54), a second belt wheel (58) fixed on the feed lifting shaft (55), and a transmission belt (59) connecting the first belt wheel (57) and the second belt wheel (58).
11. The modular sewing machine of claim 9, wherein: the shaft transmission unit comprises a first gear (510) fixed on the feed lifting shaft (55) and a second gear (511) fixed on the lower shaft (54), and the first gear (510) is meshed with the second gear (511).
12. The modular sewing machine of claim 9, wherein: the tooth lifting transmission unit comprises a first tooth lifting eccentric wheel (512) fixed on a tooth lifting shaft (55) and a first tooth lifting connecting rod (513), the first tooth lifting eccentric wheel (512) is provided with a first tooth lifting eccentric shaft part eccentric to the tooth lifting shaft (55), one end of the first tooth lifting connecting rod (513) is rotatably installed on the first tooth lifting eccentric shaft part, and the other end of the first tooth lifting connecting rod is hinged with a tooth lifting connecting part (101) of the tooth frame (10).
13. The modular sewing machine of claim 9, wherein: the tooth lifting transmission unit comprises a second tooth lifting eccentric wheel (514) fixed on a tooth lifting shaft (55), a second tooth lifting connecting rod (515), a tooth lifting transmission shaft (516) parallel to the tooth lifting shaft (55), a tooth lifting swing rod (517) fixed at one end of the tooth lifting transmission shaft (516), a tooth lifting crank (518) fixed at the other end of the tooth lifting transmission shaft (516) and a third tooth lifting connecting rod (519), the second tooth lifting eccentric wheel (514) is provided with a second tooth lifting eccentric shaft part eccentric to the tooth lifting shaft (55), one end of the second tooth lifting connecting rod (515) is rotatably installed on the second tooth lifting eccentric shaft part, the other end of the second tooth lifting eccentric shaft part is hinged with the tooth lifting swing rod (517), and the two ends of the third tooth lifting connecting rod (519) are hinged with the tooth lifting crank (518) and a tooth connecting part (101) of the tooth lifting rack (10) respectively.
14. The modular sewing machine of claim 9, wherein: the lifting tooth transmission unit comprises a second lifting tooth eccentric wheel (514) fixed on a lifting tooth shaft (55), a second lifting tooth connecting rod (515), a lifting tooth transmission shaft (516) parallel to the lifting tooth shaft (55), a lifting tooth swinging rod (517) fixed at one end of the lifting tooth transmission shaft (516), a lifting tooth fork-shaped crank (520) fixed at the other end of the lifting tooth transmission shaft (516) and a lifting tooth sliding block (521), the second lifting tooth eccentric wheel (514) is provided with a second lifting tooth eccentric shaft part eccentric to the lifting tooth shaft (55), one end of the second lifting tooth connecting rod (515) is rotatably arranged on the second lifting tooth eccentric shaft part, the other end of the second lifting tooth eccentric shaft part is hinged with the lifting tooth swinging rod (517), a lifting tooth sliding groove in sliding fit with the lifting tooth sliding block (521) is formed in the lifting tooth fork-shaped crank (520), and the lifting tooth sliding block (521) is hinged with the lifting tooth connecting part (101) of the lifting tooth frame (10).
15. The modular sewing machine of claim 1, wherein: the cloth feeding transmission mechanism comprises a cloth feeding crank (63) driven by a cloth feeding driving source (61) to rotate and a cloth feeding connecting rod (64), wherein two ends of the cloth feeding connecting rod (64) are respectively hinged with the cloth feeding crank (63) and the tooth frame seat (62).
16. The modular sewing machine of claim 1, wherein: the cloth pricking driving source (31), the thread taking-up driving source (41), the tooth lifting and hooking driving source (51) and the cloth feeding driving source (61) are all motors.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362570.5A CN115182110B (en) | 2021-04-02 | 2021-04-02 | Modularized sewing machine |
| PCT/CN2021/135972 WO2022206004A1 (en) | 2021-04-02 | 2021-12-07 | Cloth-puncturing take-up module for sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110362570.5A CN115182110B (en) | 2021-04-02 | 2021-04-02 | Modularized sewing machine |
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| CN115182110A true CN115182110A (en) | 2022-10-14 |
| CN115182110B CN115182110B (en) | 2024-06-18 |
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| WO (1) | WO2022206004A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115787202A (en) * | 2022-11-21 | 2023-03-14 | 南通新佳机电有限公司 | Quilting machine capable of improving smooth swinging of take-up lever |
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| CN105177870A (en) * | 2015-09-30 | 2015-12-23 | 杰克缝纫机股份有限公司 | Tooth lifting mechanism of sewing machine |
| CN205011970U (en) * | 2015-09-30 | 2016-02-03 | 杰克缝纫机股份有限公司 | Sewing machine lifts tooth mechanism |
| CN108998899A (en) * | 2018-08-16 | 2018-12-14 | 杰克缝纫机股份有限公司 | A kind of cloth feeding mechanism of automatic improvement take-up |
| CN214572643U (en) * | 2021-04-02 | 2021-11-02 | 杰克缝纫机股份有限公司 | Modular sewing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115787202A (en) * | 2022-11-21 | 2023-03-14 | 南通新佳机电有限公司 | Quilting machine capable of improving smooth swinging of take-up lever |
| CN115787202B (en) * | 2022-11-21 | 2023-08-29 | 南通新佳机电有限公司 | Quilting machine capable of lifting thread take-up lever to swing smoothly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115182110B (en) | 2024-06-18 |
| WO2022206004A1 (en) | 2022-10-06 |
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