CN215829044U - Sewing machine with synchronous lifting teeth for lifting presser foot and overedger - Google Patents
Sewing machine with synchronous lifting teeth for lifting presser foot and overedger Download PDFInfo
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- CN215829044U CN215829044U CN202121568311.XU CN202121568311U CN215829044U CN 215829044 U CN215829044 U CN 215829044U CN 202121568311 U CN202121568311 U CN 202121568311U CN 215829044 U CN215829044 U CN 215829044U
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- 238000009958 sewing Methods 0.000 title claims abstract description 25
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000009966 trimming Methods 0.000 claims description 25
- 230000009471 action Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 11
- 241000282472 Canis lupus familiaris Species 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009964 serging Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 210000004210 tooth component Anatomy 0.000 description 1
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Abstract
The utility model belongs to the technical field of sewing machines, in particular to a sewing machine and an overlock sewing machine with synchronous lifting teeth of a lifting and pressing foot, wherein a lifting and pressing lever is arranged in a machine body, the lower end of the lifting and pressing lever is connected with a lifting and pressing foot component, the lower end of the lifting and pressing lever is connected with a transmission shaft through a link mechanism, the transmission shaft is rotatably arranged at one side of the machine body, the other end of the transmission shaft is connected with a link mechanism II, the link mechanism II is connected with a tooth lifting and pressing eccentric component, and an adjusting mechanism for adjusting the height of a feeding tooth is arranged on the link mechanism II. Simple structure and low cost.
Description
Technical Field
The utility model relates to the technical field of sewing machines, in particular to a sewing machine with synchronous lifting teeth of a pressure foot and an overedger.
Background
The overlock sewing machine is mainly used for serging and sewing textiles and has wide application in the field of sewing. The feeding process of the overedger is mainly realized by the reciprocating elliptical motion of the feed dog frame, and the overedger continuously jacks and pulls the cloth on the needle plate through the feed dogs on the feed dog frame, so that the cloth to be processed is continuously dragged and conveyed to the machine head to complete the whole feeding process.
For example, the utility model in China has the patent number CN201822165670.5, discloses an adjusting mechanism of a feed dog frame and a overedger with the adjusting mechanism.
The feeding action in the sewing machine is realized by the driving of a feeding motor, the gear assembly is set to enable the rotary motion of the rotary power source to be input into the eccentric shaft so as to drive the adjusting slide block on the eccentric section to slide in the sliding groove of the feed dog rack and bias the feed dog rack, the structure is complex, the maintenance is inconvenient, the cost is high, and the structure needs to be further improved.
Disclosure of Invention
The utility model aims to provide a sewing machine with synchronous lifting teeth of a lifting and pressing foot, which solves the problem of complex structure by taking a lifting and pressing lever as a power source for feeding.
The purpose of the utility model is realized as follows: a sewing machine with synchronous lifting teeth of a lifting and pressing foot comprises a machine body, wherein a lifting and pressing lever is arranged in the machine body, one side of the lower end of the lifting and pressing lever is connected with a lifting and pressing foot assembly, the middle part of the lifting and pressing lever is connected with a transmission shaft through a connecting rod mechanism, the transmission shaft is rotatably arranged on one side of the machine body, and the other end of the transmission shaft is connected with a connecting rod mechanism II;
the second connecting rod mechanism comprises a second crank, a second connecting rod and a third crank, one end of the second crank is fixedly connected with the transmission shaft, the other end of the second crank is hinged with the second connecting rod, the other end of the second connecting rod is hinged with the third crank, and the other end of the third crank is connected with the tooth lifting eccentric assembly;
an adjusting mechanism for manually adjusting the height of the feeding teeth is mounted at one end of the connecting rod mechanism II;
the adjusting mechanism comprises an adjusting piece, the adjusting piece is arranged between a second connecting rod and a third crank, one end of the second connecting rod is provided with a strip-shaped adjusting hole, one end of the adjusting piece is hinged with the third crank, the other end of the adjusting piece is movably arranged in the strip-shaped adjusting hole so as to adjust the hinged position between the second connecting rod and the third crank, and a fastening knob for fixing the mounting position of the adjusting piece is arranged on the adjusting piece;
the pressure lifting lever rotates anticlockwise, the pressure foot is lifted, and the tooth lifting eccentric assembly is driven to descend the feeding teeth; the lifting and pressing lever rotates clockwise, the action of putting down the pressing foot is executed, and simultaneously the tooth lifting eccentric component is driven, so that the feeding tooth rises.
Preferably, a first gasket is arranged between the second connecting rod and the third crank, the fastening knob is in threaded connection with the adjusting piece, and a second gasket is arranged between the fastening knob and the second connecting rod.
Preferably, the tooth lifting eccentric assembly comprises a feeding seat and a feed lifting shaft, the feed lifting shaft is rotatably mounted in the machine body, one end of the feed lifting shaft is connected with the third crank, an eccentric shaft is arranged on the end face of the other end of the feed lifting shaft, a sliding block is mounted on the eccentric shaft, a fork-shaped connecting part is formed at one end of the feeding seat, the sliding block is movably arranged in a groove of the fork-shaped connecting part, a feeding tooth rack is mounted at the other end of the feeding seat, and feeding teeth are arranged on the feeding tooth rack.
Preferably, the eccentric shaft is further provided with a first stop block and a second stop block, and the first stop block and the second stop block are respectively positioned on two side surfaces of the fork-shaped connecting part so as to limit the movement of the sliding block.
Preferably, a rotatable pressure lifting shaft is arranged in the machine body, a pressure lifting crank is installed at one end of the pressure lifting shaft, a pressure lifting block is formed at one end of the pressure lifting crank, an arc-shaped groove used for driving the pressure lifting block to move is formed in the pressure lifting lever, an elastic reset piece is installed between the pressure lifting lever and the machine body, the other end of the pressure lifting shaft is connected with a pressure lifting foot assembly, a rotatable pressure lifting foot lever is further arranged on the machine body and connected with the pressure lifting lever through a pull rod, and a limiting piece used for limiting the pressure lifting foot lever to move is arranged at the upper end of the pressure lifting foot lever.
Preferably, the machine body is provided with a motor, an output shaft of the motor is provided with a cam for driving the lifting and pressing lever to rotate, the machine body is internally provided with the lifting and pressing lever, and the upper end of the lifting and pressing lever is positioned on one side of the cam; the side surface of the machine body is provided with a first support and a second support, and the transmission shaft is rotatably arranged in the first support and the second support; the first connecting rod mechanism comprises a first connecting rod and a first crank, one end of the first connecting rod is hinged to the pressure lifting lever, the other end of the first connecting rod is hinged to the first crank, and the other end of the first crank is fixedly connected with the transmission shaft.
Preferably, the machine body is further provided with a trimming connecting rod assembly for executing trimming, the trimming connecting rod assembly comprises a long rocker arm, the upper end of the long rocker arm is provided with a pushing portion for pushing the driving curved surface, the middle portion of the long rocker arm is hinged to the machine body or the upper end of the long rocker arm is hinged to the machine body, the middle portion of the long rocker arm is provided with the pushing portion, a reset piece is installed at the hinged position between the long rocker arm and the machine body, the lower end of the long rocker arm is hinged to a short rocker arm, the other end of the short rocker arm is hinged to a crank, the other end of the crank is fixedly connected with a trimming assembly, the side surface of the cam is formed with the driving curved surface, a driving pin shaft is arranged on the end surface of the driving curved surface and is arranged on the pushing portion, and the cam rotates to enable the driving curved surface to push the trimming connecting rod assembly to enable the trimming assembly to execute trimming.
The utility model also provides an overlock machine which comprises a machine body.
Compared with the prior art, the utility model has the outstanding and beneficial technical effects that:
the tooth lifting eccentric assembly moves towards one side close to the needle plate when the lifting lever rotates clockwise to enable the feeding teeth to rise, and moves towards one side far away from the needle plate when the lifting lever rotates anticlockwise to enable the feeding teeth to fall, so that the tooth lifting eccentric assembly moves to execute feeding action, and the tooth lifting eccentric assembly and the lifting foot assembly are synchronized through a mechanical structure.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the feeding mechanism.
Fig. 3 is a schematic diagram of the exploded structure of part of the feeding mechanism.
Fig. 4 is an exploded structural diagram of a part of the link mechanism II.
Fig. 5 is a schematic structural view of the pressure raising and pressing lever and the pressure raising and pressing foot lever.
Fig. 6 is a schematic structural diagram of the thread trimming mechanism.
Reference numerals: 1-body; 2, a motor; 3-a cam; 4-lifting and pressing the lever; 5-a first connecting rod mechanism; 6-a transmission shaft; 7-link mechanism II; 8-a tooth lifting eccentric assembly; 9-an adjusting part; 10-strip-shaped adjusting holes; 11-tightening the knob; 12-a first gasket; 13-spacer two; 14-lifting and pressing the shaft; 15-lifting the presser foot assembly;
16-bracket one; 17-bracket two; 18-an adjustment mechanism; 20-lifting and pressing the crank; 21-lifting and pressing a block; 22-an arc-shaped groove; 23-an elastic return member; 24-lifting a presser foot lever; 25-a limit piece; 26-a pull rod; 30-a trimming link assembly; 31-a drive pin; 32-long rocker arm; 33-a driving surface; 34-short rocker arm; 35-a crank; 36-a reset member; 37-a thread trimming assembly; 51-connecting rod one; 52-crank one; 71-crank two; 72-link two; 73-crank three; 80-feed teeth; 81-a feeding seat; 82-a feed lifting shaft; 83-eccentric shaft; 84-a slide block; 85-forked connection; 86-feeding tooth rack; 88-a first stop block; 89-block two.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1, a sewing machine with synchronous lifting teeth of a presser foot comprises a machine body 1, wherein a motor 2 is arranged on the machine body 1, a cam 3 used for driving the lifting lever 4 to rotate is installed on an output shaft of the motor 2, the lifting lever 4 is arranged in the machine body 1, the upper end of the lifting lever 4 is located on one side of the cam 3, the cam 3 is driven to rotate when the motor 2 operates, the cam 3 is driven to rotate when the cam 3 rotates to a certain stroke, the lifting lever 4 is driven to rotate, the lifting lever 4 is driven to move by the motor 2 and the cam 3 in the technical scheme, so that automatic control is achieved, and in the actual operation process, the manual driving of the lifting lever 4 can be adopted, or a foot control assembly is adopted to control the lifting lever 4 to move or the motor to directly drive the lifting lever 4 to move.
The lower end of the lifting and pressing lever 4 is connected with a transmission shaft 6 through a first connecting rod mechanism 5, the transmission shaft 6 is rotatably arranged on one side of the machine body 1, the lifting and pressing lever 4 can drive the transmission shaft 6 to rotate, the other end of the transmission shaft 6 is connected with a second connecting rod mechanism 7, the second connecting rod mechanism 7 is connected with a tooth lifting eccentric assembly 8, the transmission shaft 6 drives the tooth lifting eccentric assembly 8 to move through the second connecting rod mechanism 7, so that the completion is realized, when the lifting and pressing lever 4 rotates clockwise, the tooth lifting eccentric assembly 8 moves towards one side close to the needle plate, so that the feeding teeth rise, when the lifting and pressing lever 4 rotates anticlockwise, the tooth lifting eccentric assembly 8 moves towards one side far away from the needle plate, so that the feeding teeth descend and sink into the needle plate, the cloth is lifted or placed smoothly, the movement of the tooth lifting eccentric assembly 8 is realized, the feeding action is executed, and the synchronism between the tooth lifting eccentric assembly 8 and the presser foot assembly 15 is realized through a mechanical structure, simple structure to need not additionally to set up an solitary motor and control, reduce cost, easy maintenance.
Referring to fig. 2, a rotatable pressure lifting shaft 14 is arranged in the machine body 1, one end of the pressure lifting shaft 14 is connected with the pressure lifting lever 4, the other end of the pressure lifting shaft 14 is connected with a pressure lifting foot assembly 15, and when the pressure lifting lever 4 rotates, the pressure lifting foot assembly 15 is driven by the pressure lifting shaft 14 to perform a pressure lifting action.
In the normal course of the work, the presser foot subassembly is pressed at the up end of cloth, when lifting 4 anticlockwise rotations of pressure lever, lift presser foot subassembly 15 through lifting 14 drives and carry out and lift the presser foot action when, lift pressure lever 4 simultaneously through link mechanism 5, transmission shaft 6, link mechanism two 7 drive tooth lift eccentric subassembly 8, make tooth lift eccentric subassembly 8 remove to the one side of keeping away from the faller, the pay-off tooth will fall the lower terminal surface of faller or level mutually with the faller, at this moment, make the space increase of placing the cloth, the tooth can not hinder putting into of cloth, so that put into the cloth.
When the pressure lifting lever 4 rotates clockwise, the pressure lifting pin assembly 15 is driven by the pressure lifting shaft 14 to perform the action of lowering and lifting the pressure foot, the pressure lifting lever 4 simultaneously drives the tooth lifting eccentric assembly 8 through the first connecting rod mechanism 5, the transmission shaft 6 and the second connecting rod mechanism 7, so that the tooth lifting eccentric assembly 8 moves towards one side close to the needle plate, and feeding teeth can rise to the upper end surface of the needle plate to perform the feeding action.
Specifically, referring to fig. 5, a rotatable pressure-lifting shaft 14 is arranged in the machine body 1, one end of the pressure-lifting shaft 14 is provided with a pressure-lifting crank 20, one end of the pressure-lifting crank 20 is formed with a pressure-lifting block 21, an arc-shaped groove 22 for driving the pressure-lifting block 21 to move is formed in the pressure-lifting lever 4, when the pressure-lifting lever 4 rotates counterclockwise, the pressure-lifting block 21 will move to one side of the arc-shaped groove 22 and drive the pressure-lifting block 21 to move through the arc-shaped groove 22, so that the pressure-lifting shaft 14 rotates to perform a pressure-lifting action, and in the process of moving the pressure-lifting block alone, the pressure-lifting block 21 can freely move in the arc-shaped groove 22 without affecting the transmission shaft 6, in the actual sewing process, when the pressure-lifting mechanism is lifted by the cloth material regardless of whether the cloth is thin material or thick material during feeding, the pressure-lifting mechanism and the tooth mechanism are separately arranged due to the design of the arc-lifting block 22, and the upper end of the pressure-lifting lever 24 is provided with a limiting member 25 for limiting the movement thereof, therefore, when the presser foot is lifted by cloth, the teeth cannot be lifted simultaneously, and the height of the set teeth is influenced.
An elastic reset piece 23 is arranged between the pressure lifting lever 4 and the machine body 1 and used for resetting the pressure lifting lever 4 so as to reset the pressure foot component and the tooth component, the other end of the pressure lifting shaft 14 is connected with the pressure lifting foot component 15, a rotatable pressure lifting foot lever 24 is further arranged on the machine body 1, the pressure lifting foot lever 24 is connected with the pressure lifting lever 4 through a pull rod 26, and a limiting piece 25 used for limiting the pressure lifting foot lever 24 to move is arranged at the upper end of the pressure lifting foot lever 24 so as to enable the pressure lifting lever 4 to keep an initial position.
Referring to fig. 2, 3 and 4, the second link mechanism 7 includes a second crank 71, a second link 72 and a third crank 73, one end of the second crank 71 is fixedly connected to the transmission shaft 6, the other end of the second crank 71 is hinged to the second link 72, the other end of the second link 72 is hinged to the third crank 73, the other end of the third crank 73 is connected to the eccentric tooth lifting assembly 8, and when the transmission shaft 6 rotates, the eccentric tooth lifting assembly 8 is driven to move by the second crank 71, the second link 72 and the third crank 73.
Referring to fig. 2 and 4, an adjusting mechanism 18 for adjusting the height of the feeding teeth 80 is mounted on the second link mechanism 7, the adjusting mechanism 18 is used for adjusting the hinge position between the links in the link mechanism 7 to adjust the height of the feeding teeth 80, the adjusting mechanism 18 includes an adjusting member 9, the adjusting member 9 is mounted between the second link 72 and the third crank 73, one end of the second link 72 is provided with a strip-shaped adjusting hole 10 for moving the adjusting member 9, one end of the adjusting member 9 is hinged to the third crank 73, the other end of the adjusting member 9 is movably disposed in the strip-shaped adjusting hole 10, the adjusting member 9 is mounted with a fastening knob 11 for fixing the mounting position thereof, by unscrewing the fastening knob 11, the position of the adjusting member 9 in the strip-shaped adjusting hole 10 can be adjusted to adjust the hinge point between the second link 72 and the third crank 73, so as to change the hinge position between the link mechanism 7 and the teeth lifting eccentric assembly 8, therefore, the position of the feeding tooth rack is adjusted, the tooth movement height is adjusted, the sewing machine is suitable for sewing fabrics with different thicknesses, the second connecting rod mechanism 7 is installed on the side face of the machine body 1, and the fastening knob 11 is also located outside the machine body, so that when the adjusting piece 9 is adjusted, the operation is very convenient, the adjustment can be carried out only by rotating the fastening knob 1, and the feeding teeth are not required to be adjusted.
Specifically, referring to fig. 4, a first gasket 12 is installed between the second connecting rod 72 and the third crank 73, the fastening knob 11 is in threaded connection with the adjusting member 9, a second gasket 13 is installed between the fastening knob 11 and the second connecting rod 72, and the design of the gaskets can reduce the friction force between the two connecting parts.
With reference to fig. 2 and 3, the first link mechanism 5 includes a first link 51 and a first crank 52, one end of the first link 51 is hinged to the pressure lever 4, the other end of the first link 51 is hinged to the first crank 52, and the other end of the first crank 52 is fixedly connected to the transmission shaft 6.
With reference to fig. 2 and 3, the eccentric tooth lifting assembly 8 includes a feeding base 81 and a feed lifting shaft 82, the feed lifting shaft 82 is rotatably installed in the machine body 1, one end of the feed lifting shaft 82 is connected to the crank shaft 3, an eccentric shaft 83 is disposed on an end surface of the other end of the feed lifting shaft 82, a slider 84 is mounted on the eccentric shaft 83, a fork-shaped connection portion 85 is formed at one end of the feeding base 81, the slider 84 is movably disposed in a gap of the fork-shaped connection portion 85, a feed rack 86 is mounted at the other end of the feeding base 81, feed teeth are disposed on the feed rack 86, and when the feed lifting shaft 82 rotates, the slider 84 is driven by the eccentric shaft 83 to move, so that the slider 84 drives the feeding base 81 to move.
Referring to fig. 2 and 3, the eccentric shaft 83 is further provided with a first stopper 88 and a second stopper 89, and the first stopper 88 and the second stopper 89 are respectively located on both sides of the fork 85 to limit the movement of the slider 84, so that the slider 84 is kept moving in the fork 85.
Referring to fig. 1 and 2, a first bracket 16 and a second bracket 17 are mounted on a side surface of the machine body 1, and the transmission shaft 6 is rotatably mounted in the first bracket 16 and the second bracket 17, so that the stability of rotation of the transmission shaft 6 is ensured.
Referring to fig. 6, the machine body 1 is further provided with a trimming link assembly 30 for performing trimming, the trimming link assembly 30 includes a long rocker arm 32, an upper end of the long rocker arm 32 is provided with a pushing portion for pushing a driving curved surface 33, a middle portion of the long rocker arm 32 is hinged to the machine body or an upper end of the long rocker arm 32 is hinged to the machine body, a middle portion of the long rocker arm 32 is provided with a pushing portion, a hinge portion between the long rocker arm 32 and the machine body is provided with a reset member 36, the lower end of the long rocker arm 32 is hinged with a short rocker arm 34, the other end of the short rocker arm 34 is hinged with a crank 35, the other end of the crank 35 is fixedly connected with a thread trimming component 37, the side surface of the cam 3 is formed with a driving curved surface 33, the end surface of the driving curved surface 33 is provided with a driving pin 31, the driving pin 31 is arranged on the pushing part, and the cam 3 rotates to enable the driving curved surface 33 to push the trimming connecting rod assembly 30 to enable a trimming shaft 47 of the trimming assembly 37 to rotate to execute trimming.
The single motor drives the cam 3 to rotate, so that the motions of the pressure foot lifting, the thread cutting and the feeding tooth can be controlled respectively, the structure is simple, and the cost is reduced.
The utility model is suitable for the overedger.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A sewing machine with synchronous lifting teeth of a lifting and pressing foot is characterized by comprising a machine body (1), wherein a lifting and pressing lever (4) is arranged in the machine body (1), one side of the lower end of the lifting and pressing lever (4) is connected with a lifting and pressing foot assembly (15), the middle part of the lifting and pressing lever (4) is connected with a transmission shaft (6) through a first connecting rod mechanism (5), the transmission shaft (6) is rotatably arranged on one side of the machine body (1), and the other end of the transmission shaft (6) is connected with a second connecting rod mechanism (7);
the connecting rod mechanism II (7) comprises a crank II (71), a connecting rod II (72) and a crank III (73), one end of the crank II (71) is fixedly connected with the transmission shaft (6), the other end of the crank II (71) is hinged with the connecting rod II (72), the other end of the connecting rod II (72) is hinged with the crank III (73), and the other end of the crank III (73) is connected with the tooth lifting eccentric component (8);
one end of the second connecting rod mechanism (7) is provided with an adjusting mechanism (18) for manually adjusting the height of the feeding teeth (80);
the adjusting mechanism (18) comprises an adjusting piece (9), the adjusting piece (9) is installed between a second connecting rod (72) and a third crank (73), one end of the second connecting rod (72) is provided with a strip-shaped adjusting hole (10), one end of the adjusting piece (9) is hinged with the third crank (73), the other end of the adjusting piece (9) is movably arranged in the strip-shaped adjusting hole (10) to adjust the hinged position between the second connecting rod (72) and the third crank (73), and the adjusting piece (9) is provided with a fastening knob (11) for fixing the installation position of the adjusting piece;
the pressure lifting lever (4) rotates anticlockwise, the pressure lifting action is executed, and the tooth lifting eccentric assembly (8) is driven at the same time, so that the feeding tooth (80) descends; the lifting and pressing lever (4) rotates clockwise, the action of releasing and pressing the foot is executed, and simultaneously the tooth lifting eccentric component (8) is driven, so that the feeding tooth (80) rises.
2. The sewing machine with the synchronous lifting teeth of the lifting and pressing foot according to claim 1, characterized in that: a first gasket (12) is arranged between the second connecting rod (72) and the third crank (73), the fastening knob (11) is in threaded connection with the adjusting piece (9), and a second gasket (13) is arranged between the fastening knob (11) and the second connecting rod (72).
3. The sewing machine with the synchronous lifting teeth of the lifting and pressing foot according to claim 1, characterized in that: the tooth lifting eccentric assembly (8) comprises a feeding seat (81) and a feed lifting shaft (82), the feed lifting shaft (82) is rotatably installed in the machine body (1), one end of the feed lifting shaft (82) is connected with a crank III (73), an eccentric shaft (83) is arranged on the end face of the other end of the feed lifting shaft (82), a sliding block (84) is installed on the eccentric shaft (83), a fork-shaped connecting part (85) is formed at one end of the feeding seat (81), the sliding block (84) is movably arranged in a groove of the fork-shaped connecting part (85), a feeding tooth rack (86) is installed at the other end of the feeding seat (81), and feeding teeth (80) are arranged on the feeding tooth rack (86).
4. The sewing machine with the synchronous lifting teeth of the pressure foot according to claim 3, characterized in that: the eccentric shaft (83) is further provided with a first stop block (88) and a second stop block (89), and the first stop block (88) and the second stop block (89) are respectively positioned on two side surfaces of the fork-shaped connecting part (85) to limit the movement of the sliding block (84).
5. The sewing machine with the synchronous lifting teeth of the lifting and pressing foot according to claim 1, characterized in that: the lifting and pressing machine is characterized in that a rotatable lifting and pressing shaft (14) is arranged in the machine body (1), a lifting and pressing crank (20) is installed at one end of the lifting and pressing shaft (14), a lifting pressing block (21) is formed at one end of the lifting and pressing crank (20), an arc-shaped groove (22) used for driving the lifting pressing block (21) to move is formed in the lifting and pressing lever (4), an elastic reset piece (23) is installed between the lifting and pressing lever (4) and the machine body (1), the other end of the lifting and pressing shaft (14) is connected with a lifting and pressing foot assembly (15), a rotatable lifting and pressing foot lever (24) is further arranged on the machine body (1), the lifting and pressing foot (24) is connected with the lifting and pressing lever (4) through a pull rod (26), and a limiting piece (25) used for limiting the movement of the lifting and pressing foot (24) is arranged at the upper end of the lifting and pressing lever (24).
6. The sewing machine with the synchronous lifting teeth of the lifting and pressing foot according to claim 1, characterized in that: the machine body (1) is provided with a motor (2), an output shaft of the motor (2) is provided with a cam (3) for driving a lifting and pressing lever (4) to rotate, the machine body (1) is internally provided with the lifting and pressing lever (4), and the upper end of the lifting and pressing lever (4) is positioned on one side of the cam (3); a first support (16) and a second support (17) are mounted on the side surface of the machine body (1), and the transmission shaft (6) is rotatably mounted in the first support (16) and the second support (17); the first connecting rod mechanism (5) comprises a first connecting rod (51) and a first crank (52), one end of the first connecting rod (51) is hinged to the pressure lifting lever (4), the other end of the first connecting rod (51) is hinged to the first crank (52), and the other end of the first crank (52) is fixedly connected with the transmission shaft (6).
7. The sewing machine with the synchronous lifting teeth of the lifting and pressing foot according to claim 1, characterized in that: the machine body (1) is further provided with a trimming connecting rod assembly (30) used for executing trimming, the trimming connecting rod assembly (30) comprises a long rocker arm (32), the upper end of the long rocker arm (32) is provided with a pushing part for pushing a driving curved surface (33), the middle part of the long rocker arm (32) is hinged on the machine body or the upper end of the long rocker arm (32) is hinged on the machine body, the middle part of the long rocker arm (32) is provided with the pushing part, a reset part (36) is installed at the hinged part between the long rocker arm (32) and the machine body, the lower end of the long rocker arm (32) is hinged with a short rocker arm (34), the other end of the short rocker arm (34) is hinged with a crank (35), the other end of the crank (35) is fixedly connected with a trimming assembly (37), a driving curved surface (33) is formed on the side surface of the cam (3), a driving pin shaft (31) is arranged on the end surface of the driving curved surface (33), and the driving pin shaft (31) is arranged on the pushing part, the cam (3) rotates to enable the driving curved surface (33) to push the thread trimming connecting rod assembly (30) to enable the thread trimming assembly (37) to execute thread trimming.
8. An overlock machine comprising a sewing machine with synchronously lifting and lowering teeth as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121568311.XU CN215829044U (en) | 2021-07-09 | 2021-07-09 | Sewing machine with synchronous lifting teeth for lifting presser foot and overedger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121568311.XU CN215829044U (en) | 2021-07-09 | 2021-07-09 | Sewing machine with synchronous lifting teeth for lifting presser foot and overedger |
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| Publication Number | Publication Date |
|---|---|
| CN215829044U true CN215829044U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121568311.XU Active CN215829044U (en) | 2021-07-09 | 2021-07-09 | Sewing machine with synchronous lifting teeth for lifting presser foot and overedger |
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| CN (1) | CN215829044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388968A (en) * | 2021-07-09 | 2021-09-14 | 台州市速普机电有限公司 | Sewing machine with synchronous lifting teeth for lifting presser foot and overedger |
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2021
- 2021-07-09 CN CN202121568311.XU patent/CN215829044U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388968A (en) * | 2021-07-09 | 2021-09-14 | 台州市速普机电有限公司 | Sewing machine with synchronous lifting teeth for lifting presser foot and overedger |
| CN113388968B (en) * | 2021-07-09 | 2024-09-03 | 浙江速普机电有限公司 | Sewing machine and overedger with lift presser foot synchronous lifting tooth |
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Address after: 317700 building 20, zone a, Feiyue scientific innovation park, No. 108, Jichang Middle Road, Xiachen street, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Zhejiang Supu Electromechanical Co.,Ltd. Country or region after: China Address before: 317700 building 20, zone a, Feiyue scientific innovation park, No. 108, Jichang Middle Road, Xiachen street, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: TAIZHOU SUPU ELECTROMECHANICAL CO.,LTD. Country or region before: China |
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