CN110130003B - Sewing machine and use method thereof - Google Patents
Sewing machine and use method thereof Download PDFInfo
- Publication number
- CN110130003B CN110130003B CN201910565220.1A CN201910565220A CN110130003B CN 110130003 B CN110130003 B CN 110130003B CN 201910565220 A CN201910565220 A CN 201910565220A CN 110130003 B CN110130003 B CN 110130003B
- Authority
- CN
- China
- Prior art keywords
- driving shaft
- shaft
- driving
- rod
- sewing machine
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 93
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010985 leather Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The application discloses a sewing machine and a use method thereof, wherein the sewing machine comprises a tooth block for feeding cloth, a tooth bar fixed at the bottom of the tooth block, a first driving mechanism for driving the tooth bar to move up and down and a second driving mechanism for driving the tooth bar to reciprocate back and forth; and the limiting mechanism is used for limiting the second driving mechanism to stop moving when the first driving mechanism drives the tooth bar to move up and down. According to the technical scheme, the second driving mechanism for driving the tooth bar to reciprocate back and forth is locked and stopped by the limiting mechanism, so that in-situ immobility of cloth is realized in the sewing process, and in-situ thread locking is realized by repeatedly feeding the needle thread in situ; therefore, the inverted needle mode is avoided to lock the thread, the beautiful appearance of the sewing position of the product is maintained, the manual fastening mode is avoided to lock the thread, the thread is not required to be selected, the thread head is directly glued and cut after sewing, and the production efficiency is greatly improved.
Description
Technical Field
The present disclosure relates generally to the field of sewn article production equipment, and more particularly to a sewing machine and a use method thereof.
Background
Sewn articles are very common in various fields of life, such as cloth art, leather and the like; leather products such as seat covers and head pillowcases used in automobiles are sewn together.
After a section of thread is run, the sewing machine always needs to lock the needle and the thread by the inverted needle, but the inverted needle always influences the appearance of the exposed surface of the product; in order to pursue the beauty of products, many high-end automobile manufacturers often require that the exposed surfaces of related products such as seat covers, headrest covers and the like cannot be provided with inverted needle threads, and all sewing threads are required to be along the needles, so that when the products are sewn, the threads are required to be picked to the same side, the outer leakage threads are fastened on the inner side of the products, and after fastening, the outer leakage threads are required to be fixed by dispensing, and taking the headrest case of an automobile as an example, the number of people average work pieces of the work is 400 (8 hours).
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings of the prior art, it is desirable to provide a sewing machine and a method of using a sewing machine.
In a first aspect, the present application provides a sewing machine, including a tooth block for feeding cloth, a tooth bar fixed at the bottom of the tooth block, a first driving mechanism driving the tooth bar to move up and down, and a second driving mechanism driving the tooth bar to reciprocate back and forth; and the limiting mechanism is used for limiting the second driving mechanism to stop moving when the first driving mechanism drives the tooth bar to move up and down.
According to the technical scheme provided by the embodiment of the application, the first driving mechanism comprises a first driving shaft and a motor for driving the first driving shaft to rotate; the first driving shaft is connected with a first eccentric block, and the side surface of the first eccentric block is connected with the bottom end of the tooth bar through a connecting rod;
the second driving mechanism comprises a second driving shaft and a needle reversing shaft positioned below one side of the second driving shaft; the second driving shaft is arranged in parallel with the first driving shaft and is positioned on the same side of the inverted needle shaft as the first driving shaft; the second driving shaft is positioned at one side of the tooth rod, and the end part of the second driving shaft is connected with the side wall of the tooth rod through a bending rod; the middle part of the arc-shaped surface of the inverted needle shaft is recessed to form a groove, a sliding groove perpendicular to the axis is arranged in the groove, and a sliding block is slidably arranged in the sliding groove;
a linkage mechanism is connected among the sliding block, the second driving shaft and the first driving shaft; the linkage mechanism comprises a second eccentric block, a first connecting rod, a second connecting rod and a third connecting rod, wherein the second eccentric block is arranged on the first driving shaft, the first connecting rod and the second connecting rod are connected in series, and the third connecting rod is connected between the middle part of the first connecting rod and the second eccentric block; the end part of the first connecting rod is rotatably connected with the sliding block; the end part of the second connecting rod is fixedly connected with the second driving shaft;
When the first driving shaft rotates, the second driving shaft is driven to rotate through a linkage mechanism, and the inverted needle shaft limits the rotation range of the second driving shaft through the linkage mechanism;
An adjusting shaft fixedly extends out of the end part of the inverted needle shaft; the adjusting shaft is fixedly extended out of the adjusting rod in the radial direction; an adjusting handle vertically extends out of the end part of the adjusting rod; the limiting mechanism is positioned above the adjusting rod, and the inverted needle shaft is limited to rotate to the original point position by limiting the position of the top end of the adjusting rod; when the inverted needle shaft is positioned at the original point, the first driving shaft cannot drive the second driving shaft to rotate through the linkage mechanism.
According to the technical scheme provided by the embodiment of the application, the limiting mechanism comprises an air cylinder arranged on the sewing machine and a fourth connecting rod connected with the end part of the adjusting rod and the end part of a piston rod of the air cylinder.
According to the technical scheme provided by the embodiment of the application, the limiting mechanism comprises a linear push rod fixed on the outer side wall of the sewing machine shell and a U-shaped frame fixed at the end part of the extending end of the linear push rod; the width of the adjusting rod is larger than that of the connecting part of the adjusting rod and the adjusting shaft; the width of the opening of the U-shaped frame is slightly larger than that of the adjusting rod; the straight push rod is located below the adjusting shaft, and when the straight push rod stretches out, the adjusting shaft and the adjusting rod are sequentially inserted into the U-shaped frame, and the inverted needle shaft is rotated to the original point position.
According to the technical scheme provided by the embodiment of the application, the sewing machine further comprises an adjusting mechanism, wherein the adjusting mechanism comprises a bearing plate which is fixed at the bottom of the linear push rod and is used for being attached to the side wall of the sewing machine; the end part of the bearing plate extends out of the end part of the linear push rod; t-shaped rods and threaded rods are coaxially fixed on two sides of the bearing plate; the bearing plate is rotatably connected with the side wall of the sewing machine through the threaded rod.
In a second aspect, the present application provides a method of using a sewing machine, the method comprising:
starting a limiting mechanism to mediate a first driving mechanism for driving a tooth block to reciprocate back and forth, wherein the tooth block is used for feeding cloth of a sewing machine;
And a second driving mechanism and a sewing mechanism for driving the tooth blocks to reciprocate up and down are started, so that the sewing machine sews a plurality of needles at the same position of the cloth, and in-situ thread locking is realized.
According to the technical scheme, the limiting mechanism and the method are arranged in the sewing machine, and the movement mode of the tooth block for feeding cloth in the sewing machine is increased by the limiting mechanism, namely, only up-down movement is performed in the sewing process, and the front-back movement is stopped; at the moment, the limiting mechanism locks and stops the second driving mechanism which drives the tooth bar to reciprocate back and forth, so that in-situ immobility of cloth is realized in the sewing process, and in-situ thread locking is realized by in-situ repeated needle feeding of needle threads; therefore, after a section of thread is sewn, the thread can be locked through the motion mode, the inverted needle mode is avoided, the attractiveness of the sewn part of the product is maintained, the thread is also prevented from being locked by adopting a manual fastening mode, the thread is not required to be selected, the thread head is directly glued and cut after the sewing, the production efficiency is greatly improved, and the practice proves that the thread locking efficiency of the seat cover without the inverted needle thread is improved by more than 60% after the sewing machine is adopted.
According to the technical scheme provided by the embodiment of the application, the limiting mechanism is set to be in a cylinder mode or a linear push rod driving mode, so that the original point of the inverted needle shaft driven by the rotating shaft in the second driving mechanism is locked, namely the first driving mechanism can drive the second driving shaft to rotate through the inverted needle shaft; and brings convenience to the operation and the use of the in-situ locking wire.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a first embodiment of the present application;
FIG. 2 is a schematic view of a part of a sewn article to be sewn according to the present application;
FIG. 3 is a schematic view of a cross-sectional structure of a part of a sewn article to be sewn according to the present application;
FIG. 4 is a schematic structural view of a limiting mechanism in a second embodiment of the present application;
FIG. 5 is a schematic structural diagram of an adjusting mechanism in a second embodiment of the present application;
fig. 6 is a flowchart of a third embodiment of the present application.
Reference numerals in the drawings:
100. A dental block; 200. a tooth bar; 300. a first driving mechanism; 400. a second driving mechanism; 700. a limiting mechanism; 310. a first drive shaft; 320. a motor; 330. a first eccentric block; 340. a connecting rod; 332. an arc-shaped block; 331. an annular groove; 410. a second drive shaft; 420. a needle reversing shaft; 430. bending the rod; 421. a groove; 422. a chute; 423. a slide block; 500. a linkage mechanism; 520. a first link; 530. a second link; 510. a second eccentric block; 540. a third link; 424. an adjusting shaft; 426. an adjusting rod; 427. an adjusting handle; 710. a cylinder; 720. a fourth link; 730. a straight push rod; 740. a U-shaped frame; 611. a T-shaped rod; 612. a threaded rod; 600. an adjusting mechanism; 50. a first leather; 60. a second leather; 70. a sewing thread; 61. sewing the residual edges; 51. sewing the residual edges; 80. open line; 81. and (5) wire ends.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, a schematic structural diagram of a sewing machine according to the present application includes a tooth block 100 for feeding cloth, a tooth bar 200 fixed at the bottom of the tooth block 100, a first driving mechanism 300 for driving the tooth bar 200 to move up and down, and a second driving mechanism 400 for driving the tooth bar 200 to reciprocate back and forth; a limiting mechanism 700 is further included for limiting the second driving mechanism 400 to stop moving when the first driving mechanism 300 drives the rack bar 200 to move up and down.
In this embodiment, the first driving mechanism 300 includes a first driving shaft 310, and a motor 320 for driving the first driving shaft 310 to rotate; the first driving shaft 310 is connected with a first eccentric block 330, and the side surface of the first eccentric block 330 is connected with the bottom end of the tooth bar 200 through a connecting rod 340; as shown in fig. 1, the motor 320 drives the first driving shaft 310 to rotate through the conveyor belt 321, a circle of annular groove 331 is arranged at the side edge of the first eccentric block 330, an arc-shaped block 332 is slidably clamped in the annular groove 331, one side surface of one end of the connecting rod 340 is fixed on the arc-shaped block 332, and the other end is rotatably fixed on the tooth bar 200; when the first driving shaft rotates, the toothed bar 200 and the tooth block 100 fixed thereto are driven to move up and down by the first eccentric block 330 and the connecting rod 340.
The second driving mechanism 400 includes a second driving shaft 410 and a reverse needle shaft 420 positioned below one side of the second driving shaft 410; the second driving shaft 410 is disposed parallel to the first driving shaft 310 and is located at the same side of the inverted needle shaft 420 as the first driving shaft 310; the second driving shaft 410 is positioned at one side of the dental bar 200, and an end thereof is connected to a side wall of the dental bar 200 through a bending bar 430; one end of the bending rod 430 is hinged to the side of the tooth bar 200, and the other end is fixedly connected to the first driving shaft 310; when the first driving shaft 310 rotates, the dental bar 200 and the dental block 100 are driven to move along the tooth surface extending direction (arrow direction in the figure) of the dental block 100, for example, when the first driving shaft 310 rotates clockwise, the dental block 100 moves in the arrow a direction, and when the first driving shaft 310 rotates counterclockwise, the dental block 100 moves in the arrow B direction; the middle part of the arc surface of the inverted needle shaft 420 is recessed to form a groove 421, a sliding groove 422 perpendicular to the axis is arranged in the groove 421, and a sliding block 423 is slidably arranged in the sliding groove 422;
A linkage mechanism 500 is connected among the slide block 423, the second driving shaft 410 and the first driving shaft 310; the linkage mechanism 500 includes a second eccentric block 510 mounted on the first driving shaft 310, a first link 520 and a second link 530 connected in series, and a third link 540 connected between the middle of the first link 520 and the second eccentric block 510; the end of the first link 520 is rotatably connected with the slider 423; the end of the second link 530 is fixedly connected to the second driving shaft 410;
when the first driving shaft 310 rotates, the second driving shaft 410 is driven to rotate by the linkage mechanism 500, and the inverted needle shaft 420 limits the rotation range of the second driving shaft 410 by the linkage mechanism 500;
when the sewing machine normally feeds and walks a thread, an included angle between a plane where the bottom surface of the chute 422 in the inverted needle shaft 420 is located and a vertical plane is a, at this time, the second driving shaft 410 drives the second eccentric block 510 to make an eccentric motion, at this time, the up-and-down motion of the second eccentric block 510 can be transmitted to the first connecting rod 520 through the third connecting rod 540; one end of the first link 520 reciprocally slides in the sliding groove 422, and simultaneously drives the reciprocal part of the first driving shaft 310 to rotate, thereby realizing the reciprocal movement of the tooth block back and forth (AB direction); when the first driving shaft 410 drives the tooth block to move upwards, the tooth block 100 moves towards the direction B, so that forward cloth feeding is realized;
When the sewing machine is in a needle reversing state, the included angle between the plane of the bottom surface of the chute 422 in the needle reversing shaft 420 and the vertical surface is b, for example, at this time, the second driving shaft 410 drives the second eccentric block 510 to make an eccentric motion, at this time, the up-and-down motion of the second eccentric block 510 can be transmitted to the first link 520 through the third link 540; one end of the first link 520 reciprocally slides in the sliding groove 422, and simultaneously drives the reciprocal part of the first driving shaft 310 to rotate, thereby realizing the reciprocal movement of the tooth block back and forth (AB direction); when the first driving shaft 410 drives the tooth block to move upwards, the tooth block 100 moves towards the direction A, so that the cloth feeding backwards is realized;
in this embodiment, the angle between the plane where the bottom surface of the chute 422 in the inverted needle shaft 420 is located and the vertical plane is adjusted to be c by the linkage 500, and c= (a+b)/2, when the inverted needle shaft is in this state, the fixed language is the origin position, at this time, the first driving shaft 310 cannot be rotated by the linkage 500, that is, when the second driving shaft 410 rotates, only one end of the first connecting rod 520 connected to the slider 423 can reciprocate, and the other end remains motionless. In this embodiment, by adjusting the inverted needle shaft 420 of the sewing machine to the original position, the in-situ thread locking is realized, the inverted needle mode may not be adopted, the beautiful appearance of the sewn product is ensured, and the complicated procedure of thread tying is simplified at the same time:
As shown in fig. 2, the structure of the inner lining is schematically shown after two pieces of leather in the partial head pillowcase are sewn and connected together, wherein the first leather 50 and the second leather 60 are sewn together by a hidden line 70, and at this time, a first inner left edge 51 of the first leather 50 and a second inner left edge 61 of the second leather 60 are respectively formed on the inner side; next, as shown in fig. 3, the first inner margin 51 and the body portion of the first leather 50 are respectively sewn and connected by the open thread 80, and the second inner margin 61 and the body portion of the second leather 60 are sewn and connected by the open thread 80; further, a first sewing margin 52 and a second sewing margin 62 are respectively generated outside the open thread 80; when a reverse needle thread locking mode is adopted and an open thread adopts double threads, as shown in fig. 3, firstly, exposed thread ends 81 on the outer surface (the surface B) need to be picked up from the inner surface (the surface A) to the surface A, thus 4 thread ends 81 are arranged on the surface A corresponding to each open thread, 4 thread ends 81 in each open thread need to be tied together in pairs, then glue is dispensed, and finally the thread ends 81 are cut; after the technical scheme is used, as the thread ends 81 are in a locked state, the thread ends 81 on the A face and the B face are cut off respectively only by dispensing glue at the locking thread positions on the A face.
From the comparison, the technical scheme of the application is simplified from the original 'thread picking-fastening-dispensing-thread cutting head' to 'thread dispensing-thread cutting head', and experience indicates that taking an automobile head pillowcase as an example, the yield of people average thread is improved from the original 400 threads/day to 600 threads/day to 800 threads/day.
It will be appreciated by those skilled in the art that the above-described structure in this embodiment is only a part of the mechanism in the sewing machine, and the movement of the first driving mechanism 400 is necessarily accompanied by the operation of other sewing mechanisms of the sewing machine, such as the hook-thread clostriding assembly and the thread-feeding needle bar assembly, which are not repeated in this embodiment.
An adjusting shaft 424 fixedly extends out of the end part of the inverted needle shaft 420; the adjusting shaft 424 is fixedly extended with an adjusting rod 426 in the radial direction; an adjusting handle 427 vertically extends out of the end part of the adjusting rod 426; the limiting mechanism 700 is located above the adjusting rod 426, and limits the inverted needle shaft 420 to rotate to the original point position by limiting the position of the top end of the adjusting rod 426; when the inverted needle shaft 420 is located at the origin position, the first driving shaft 310 cannot rotate the second driving shaft 410 by the rotational movement thereof through the linkage mechanism 500.
Preferably in the present embodiment, the limiting mechanism 700 includes a cylinder 710 mounted on the sewing machine, a fourth link 720 connected to the end of the adjusting rod 426 and the end of the piston rod of the cylinder 710; the top end of the fourth connecting rod 720 is fixedly connected with the piston rod, and the bottom end is rotatably connected with the adjusting rod 426; in the present embodiment, the bottom of the piston rod of the cylinder 710 defines the rotation angle of the adjustment lever 426 by the fourth link 720; other connection methods are also possible between the cylinder 710 and the adjustment rod 426.
Embodiment two:
On the basis of the first embodiment, the limiting mechanism in the embodiment is replaced by the following modes: as shown in fig. 4, the limiting mechanism 700 includes a linear push rod 730 fixed to the outer sidewall of the sewing machine casing, and a U-shaped frame 740 fixed to the end of the extended end of the linear push rod 730; the width of the adjusting rod 426 is larger than that of the connecting part of the adjusting rod with the adjusting shaft 424; the width of the opening of the U-shaped frame 740 is slightly larger than the width of the adjusting rod 426; the linear push rod 530 is located below the adjusting shaft 424, and when the linear push rod 530 extends, the adjusting shaft 424 and the adjusting rod 426 are sequentially inserted into the U-shaped frame 740, so as to rotate the inverted needle shaft to the original position. The position of the linear push rod 730 is fixed to the sidewall of the sewing machine after empirical adjustment.
As shown in fig. 5, the above-mentioned limit mechanism further includes an adjusting mechanism 600, where the adjusting mechanism 600 includes a receiving plate 610 fixed at the bottom of the linear pushing rod 730 and used for being attached to the sidewall of the sewing machine; the end of the receiving plate 610 extends out of the end of the linear pushing rod 730; t-shaped rods 611 and threaded rods 612 are coaxially fixed on two sides of the bearing plate 610; the receiving plate 610 is rotatably connected to a sidewall of the sewing machine by the threaded rod 612. The bottom surface of the receiving plate 610 is mainly connected with the side wall of the sewing machine in other manners, such as a magnet attraction manner; the adjusting mechanism 600 allows the rotation angle of the linear pushing rod 730 to be finely adjusted by the adjusting mechanism 600 during the test machine.
Example III
As shown in fig. 6, the present embodiment provides a method for using a sewing machine, the method including the steps of:
s100, starting the limiting mechanism 700 to mediate the first driving mechanism 300 driving the tooth block 100 to reciprocate back and forth, wherein the tooth block 100 is used for feeding cloth of a sewing machine;
s200, starting the second driving mechanism 400 and the sewing mechanism for driving the tooth block 100 to reciprocate up and down, so that the sewing machine sews a plurality of needles at the same position of the cloth, and in-situ thread locking is realized.
The limiting mechanism 700 in this embodiment uses the limiting mechanism in the first embodiment, and the first driving mechanism 300 and the second driving mechanism 400 are the same as those in the first embodiment, and in other embodiments, the common driving mechanism in the existing sewing machine may be used for each mechanism in the above steps of the method.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (4)
1. A sewing machine, which is characterized by comprising a tooth block (100) for feeding cloth, a tooth bar (200) fixed at the bottom of the tooth block (100), a first driving mechanism (300) for driving the tooth bar (200) to move up and down, and a second driving mechanism (400) for driving the tooth bar (200) to reciprocate back and forth; a limiting mechanism (700) for limiting the second driving mechanism (400) to stop moving when the first driving mechanism (300) drives the dental rod (200) to move up and down;
The first driving mechanism (300) comprises a first driving shaft (310) and a motor (320) for driving the first driving shaft (310) to rotate; the first driving shaft (310) is connected with a first eccentric block (330), and the side surface of the first eccentric block (330) is connected with the bottom end of the tooth rod (200) through a connecting rod;
The second driving mechanism (400) comprises a second driving shaft (410) and a reverse needle shaft (420) positioned below one side of the second driving shaft (410); the second driving shaft (410) is arranged in parallel with the first driving shaft (310) and is positioned on the same side of the inverted needle shaft (420) as the first driving shaft (310); the second driving shaft (410) is positioned at one side of the tooth bar (200), and the end part of the second driving shaft is connected with the side wall of the tooth bar (200) through a bending bar (430); one end of the bending rod 430 is hinged to the side of the tooth bar 200, and the other end is fixedly connected to the first driving shaft 310; when the first driving shaft 310 rotates, the dental bar 200 and the dental block 100 are driven to move along the extension direction of the tooth surface of the dental block 100; the middle part of the arc-shaped surface of the inverted needle shaft (420) is concave to form a groove (421), a chute (422) perpendicular to the axis is arranged in the groove (421), and a sliding block (423) is slidably arranged in the chute (422);
A linkage mechanism (500) is connected among the sliding block (423), the second driving shaft (410) and the first driving shaft (310); the linkage mechanism (500) comprises a second eccentric block (510) arranged on the first driving shaft (310), a first connecting rod (520) and a second connecting rod (530) which are connected in series, and a third connecting rod (540) connected between the middle part of the first connecting rod (520) and the second eccentric block (510); the end part of the first connecting rod (520) is rotatably connected with the sliding block (423); the end part of the second connecting rod (530) is fixedly connected with the second driving shaft (410);
When the first driving shaft (310) rotates, the second driving shaft (410) is driven to rotate through a linkage mechanism (500), and the inverted needle shaft (420) limits the rotation range of the second driving shaft (410) through the linkage mechanism (500);
An adjusting shaft (424) fixedly extends out of the end part of the inverted needle shaft (420); an adjusting rod (426) is fixedly extended out of the adjusting shaft (424) in the radial direction; an adjusting handle (427) vertically extends out of the end part of the adjusting rod (426); the limiting mechanism (700) is positioned above the adjusting rod (426), and the inverted needle shaft (420) is limited to rotate to the original point position by limiting the position of the top end of the adjusting rod (426); when the inverted needle shaft (420) is positioned at the original point, the first driving shaft (310) cannot drive the second driving shaft (410) to rotate through the linkage mechanism (500), and when the second driving shaft (410) rotates, only one end of the first connecting rod (520) connected with the sliding block (423) can reciprocate, and the other end of the first connecting rod is kept motionless;
Wherein, the motor (320) drives the first driving shaft (310) to rotate through the conveyor belt 321, a circle of annular groove (331) is arranged at the side edge of the first eccentric block (330), an arc-shaped block (332) is slidably clamped in the annular groove 331, the side surface of one end of the connecting rod (340) is fixed on the arc-shaped block (332), and the other end is rotatably fixed on the tooth bar (200); when the first driving shaft rotates, the tooth bar (200) and the tooth block (100) fixed on the tooth bar are driven to move up and down through the first eccentric block (330) and the connecting rod (340);
The origin position is the position when the included angle between the plane of the bottom surface of the chute 422 in the inverted needle shaft 420 and the vertical surface is adjusted to be c;
c＝(a+b)/2
Wherein a is an included angle between a plane where the bottom surface of the sliding groove (422) in the inverted needle shaft (420) is located and a vertical surface when the sewing machine is used for forward feeding and routing, and b is an included angle between the plane where the bottom surface of the sliding groove (422) in the inverted needle shaft (420) is located and the vertical surface when the sewing machine is inverted.
2. The sewing machine of claim 1, wherein the limit mechanism (700) comprises a cylinder (710) mounted on the sewing machine, a fourth link (720) coupled to an end of the adjustment rod (426) and an end of a piston rod of the cylinder (710).
3. The sewing machine of claim 1, wherein the limiting mechanism (700) comprises a linear push rod (730) fixed to an outer side wall of the sewing machine casing, and a U-shaped frame (740) fixed to an end of an extended end of the linear push rod (730); the width of the adjusting rod (426) is larger than that of the connecting part of the adjusting rod and the adjusting shaft (424); the width of the opening of the U-shaped frame (740) is slightly larger than the width of the adjusting rod (426); the linear push rod (730) is located below the adjusting shaft (424), and when the linear push rod (730) stretches out, the adjusting shaft (424) and the adjusting rod (426) are sequentially inserted into the U-shaped frame (740) to rotate the inverted needle shaft to the original point position.
4. A sewing machine according to claim 3, further comprising an adjustment mechanism (600), said adjustment mechanism (600) comprising a receiving plate (610) fixed to the bottom of said linear push rod (730) for engaging the side walls of the sewing machine; the end of the receiving plate (610) extends out of the end of the linear push rod (730); t-shaped rods (611) and threaded rods (612) are coaxially fixed on two sides of the bearing plate (610); the receiving plate (610) is rotatably connected with the side wall of the sewing machine through the threaded rod (612).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565220.1A CN110130003B (en) | 2019-06-27 | 2019-06-27 | Sewing machine and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565220.1A CN110130003B (en) | 2019-06-27 | 2019-06-27 | Sewing machine and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110130003A CN110130003A (en) | 2019-08-16 |
| CN110130003B true CN110130003B (en) | 2024-07-02 |
Family
ID=67566563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910565220.1A Active CN110130003B (en) | 2019-06-27 | 2019-06-27 | Sewing machine and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110130003B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206692845U (en) * | 2016-12-13 | 2017-12-01 | 阮晨航 | A kind of two-needle sewing machine |
| CN109208188A (en) * | 2018-11-14 | 2019-01-15 | 杰克缝纫机股份有限公司 | A kind of needle gage automatic adjusting mechanism and sewing machine |
| CN210215787U (en) * | 2019-06-27 | 2020-03-31 | 廊坊市东平汽车零配件有限公司 | Sewing machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010246839A (en) * | 2009-04-20 | 2010-11-04 | Juki Corp | Sewing machine |
| JP5940307B2 (en) * | 2012-01-18 | 2016-06-29 | Juki株式会社 | Sewing machine feed adjustment mechanism |
| CN103668797B (en) * | 2013-12-31 | 2015-09-02 | 浙江宝石机电股份有限公司 | A kind of cloth feeding mechanism of Sewing machines |
| CN206570503U (en) * | 2017-01-13 | 2017-10-20 | 湖南兴德缝制股份有限公司 | The sewing machine error transfer factor of falling needle gage structure |
| CN206580985U (en) * | 2017-03-25 | 2017-10-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN109056197B (en) * | 2018-10-12 | 2024-04-09 | 台州市泓列缝纫机有限公司 | Needle pitch adjustable precision reverse and forward seam driving mechanism of electric sewing machine |
| CN109518363B (en) * | 2018-12-13 | 2020-12-29 | 杰克缝纫机股份有限公司 | Backstitch and gauge needle adjusting structure and sewing machine |
| CN109930304B (en) * | 2019-04-02 | 2024-04-19 | 美机科技集团有限公司 | Needle distance adjusting mechanism of sewing machine |
-
2019
- 2019-06-27 CN CN201910565220.1A patent/CN110130003B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206692845U (en) * | 2016-12-13 | 2017-12-01 | 阮晨航 | A kind of two-needle sewing machine |
| CN109208188A (en) * | 2018-11-14 | 2019-01-15 | 杰克缝纫机股份有限公司 | A kind of needle gage automatic adjusting mechanism and sewing machine |
| CN210215787U (en) * | 2019-06-27 | 2020-03-31 | 廊坊市东平汽车零配件有限公司 | Sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110130003A (en) | 2019-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2915351B2 (en) | Bead-like object sewing apparatus, feeder used in bead-like article sewing apparatus, and decorative body having bead-like article | |
| JP2008104718A (en) | Feed mechanism of sewing machine | |
| CN110130003B (en) | Sewing machine and use method thereof | |
| CN210215787U (en) | Sewing machine | |
| KR101873956B1 (en) | Device for presenting decorative materials and method for operating such a device | |
| US4501211A (en) | Lock stitch type hand sewing machine | |
| JP2019072466A (en) | sewing machine | |
| US5960725A (en) | Rotary needle driving mechanism for a sewing machine | |
| CN1053939C (en) | Sewing machine | |
| CN111304838B (en) | Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine | |
| WO2019073922A1 (en) | Sewing machine | |
| US5293829A (en) | Compact home use sewing machine with an adjusting mechanism for controlling the stitch length and feed direction | |
| CN2587903Y (en) | Hand held electric driven surface seam thread machine | |
| JPH03500730A (en) | sewing machine | |
| CN210420457U (en) | Equipment for sewing hanging belt on embroidery | |
| US6032597A (en) | Shuttle hook driver for sewing machine | |
| CN214088948U (en) | Track cam thread hooking device and chain type sewing machine | |
| CN213571032U (en) | Sewing machine and anti-jumping-thread device thereof | |
| CN210031101U (en) | Synthesize material feeding unit and sewing machine | |
| JPH08112471A (en) | Cylinder type sewing machine | |
| CN110541246A (en) | Button sewing machine | |
| WO2019073919A1 (en) | Method for sewing slide fastener, and slide fastener product | |
| CN112626725B (en) | Feeding tooth lifting tooth height adjustable mechanism and sewing machine | |
| CN216107507U (en) | Sewing machine | |
| CN220335443U (en) | Handpiece for applying stitches to a decorative element having a three-dimensional conformation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |