CN204780201U - Sewing machine's thread trimming mechanism - Google Patents
Sewing machine's thread trimming mechanism Download PDFInfo
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- CN204780201U CN204780201U CN201520419404.4U CN201520419404U CN204780201U CN 204780201 U CN204780201 U CN 204780201U CN 201520419404 U CN201520419404 U CN 201520419404U CN 204780201 U CN204780201 U CN 204780201U
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Abstract
The utility model provides a sewing machine's thread trimming mechanism belongs to mechanical technical field. Thread trimmer devices that it had solved current sewing machine can't shorten the problem of the length of remaining the upper thread on the cloth. This sewing machine's thread trimming mechanism includes actuating mechanism, the stationary knife of fixing on the faller downside no. 1 moves sword no. 1 with articulating on the faller downside, move sword no. 1 and do the shearing action with a stationary knife cooperation under actuating mechanism's effect, the faller downside is equipped with inhales line spare, it is connected with the getter device to inhale line spare one end, have on the faller be used for the drive inhale pinhole that line spare made this port of inhaling the other end of line spare and faller just to or the driving piece no. 1 of keeping away from, it has the sword spare that moves that has the cutting edge to be fixed with stationary knife no. 2 on the faller on the side and to hinge, still have on the faller and be used for moving sword spare and make and to move two cooperations of sword spare and stationary knife and will follow the pinhole in the driving piece no. 2 cut of the upper thread worn out. This sewing machine's thread trimming mechanism has the advantage that can shorten the length of remaining the upper thread on the cloth.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of Sewing machines, particularly a kind of thread cutting mechanism of Sewing machines.
Background technology
In the past, reinforced in the various circulating sewing machines of Sewing machines etc. at the noose forming noose and reinforce stitching, arranged in the downside of needle plate that have can the cutting facility of moving knife component and dead knife component.This cutting facility has can moving knife component and dead knife component, during sewing finishing, by these moving knife components and stationary knife component automaticity the upper thread that will extend from cloth cut off.At present, described cutting facility can be divided into moving knife component to carry out relative to stationary knife component linear pattern that linearity moves back and forth and moving knife component to carry out reciprocating rotation rotation (disclosed in Chinese patent storehouse a kind of cutting facility [application number: 200510056267.3 of Sewing machines relative to dead knife component; Authorization Notice No. CN1676723A]), and practical.
But there is a problem in the cutting facility of existing Sewing machines: after making, existing cutting facility is only by being cut off by the upper thread be connected with cloth with the cooperation of dead knife component by moving knife component, this causes the upper thread remained on cloth can be long, affect the quality of product, also needing by manually the end of a thread remained on cloth being cut off time serious, operating comparatively loaded down with trivial details.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of thread cutting mechanism of Sewing machines, and the technical problem that the utility model solves how to shorten the length of the upper thread remained on cloth.
The purpose of this utility model realizes by following technical proposal: a kind of thread cutting mechanism of Sewing machines, comprise driving mechanism, the moving knife one being fixed on the stationary knife one on needle plate downside and being hinged on needle plate downside, moving knife one coordinates with stationary knife one and does shear action under the effect of driving mechanism, it is characterized in that, suction line piece is in a tubular form provided with on the downside of described needle plate, inhale line piece one end and be connected with the getter device that can make to produce negative pressure inside this suction line piece, needle plate has for drive inhale pin hole that line piece makes the port of the other end of this suction line piece and needle plate just to or away from actuator one, described needle plate upper side be fixed with stationary knife two and be hinged with the moving knife part with blade, this needle plate also has for driving moving knife part to make this moving knife part coordinate with described stationary knife two actuator two cut off by the upper thread passed from described pin hole.
When making, cloth is positioned at the upside of stationary knife two, and upper thread is located in pin hole.After cloth is made, driving mechanism drives the moving knife one be positioned on needle plate downside to rotate and coordinate with stationary knife one and is cut off by upper thread; Then actuator one works, make the port of suction line piece and pin hole just right, and under the effect of getter device, suction line piece is made to produce negative pressure by the upper thread that remains on cloth toward drop-down, make the straight line that the tight one-tenth of upper thread one is vertically arranged, then actuator two works to drive the rotation of moving knife part and coordinate with stationary knife two and is cut off by the upper thread be straightened, thus effectively shortens the length of the upper thread remained on cloth.Each parts for being cut off by upper thread are all distributed in needle plate, effectively reduce the gap between each parts, make the thread cutting mechanism of this Sewing machines become compact.Secondly, stationary knife two and moving knife part are all positioned at pin hole place, effectively reduce stationary knife one, moving knife one, stationary knife two and the moving knife part gap between this, further increase the structural compactness of the thread cutting mechanism of this Sewing machines.
In the thread cutting mechanism of above-mentioned Sewing machines, described stationary knife two is provided with the through hole one worn for upper thread, and the position of described through hole one and the position of described pin hole face, and the blade of described stationary knife two is positioned at through hole one place.
Namely the position that upper thread cuts off is positioned at through hole.Adopt above-mentioned structure, effectively reduce the distance between upper thread and the blade of stationary knife two, to shorten the length that upper thread extends to stationary knife two direction under the effect of moving knife part, thus shorten the length of the upper thread remained on cloth further.
In the thread cutting mechanism of above-mentioned Sewing machines, described needle plate is provided with the guide frame play the guiding role to the movement of inhaling line piece.
By arranging guide frame, make suction line piece under the effect of actuator one, move to the position faced with pin hole comparatively accurately, make the straight line of upper thread vertical setting of tight one-tenth one all the time under the effect of getter device, thus effectively shorten the length of the upper thread remained on cloth.
In the thread cutting mechanism of above-mentioned Sewing machines, described guide frame comprise be arranged on needle plate downside and in strip chute, be located at the slide block in chute and be hinged on the connecting rod one on needle plate, described suction line piece and one end of slide block fix, and one end of the other end of slide block and connecting rod one fixes, the other end and the actuator one of described connecting rod one fix.
Actuator one is cylinder, oil cylinder, this three of electromagnet any one be all fine.The rectilinear motion converting slide block to is rotated by actuator one drivening rod one, face with the port and pin hole position that effectively ensure suction line piece, make the straight line of upper thread vertical setting of tight one-tenth one all the time under the effect of getter device, thus effectively shorten the length of the upper thread remained on cloth.Simultaneously, by arranging the connecting rod one be hinged on needle plate, slide block and actuator one are coupled together, directly to be connected with actuator one this technical scheme relative to slide block, the distance between actuator one and pin hole can be reduced, thus the gap of reducing between each parts that upper thread is cut off, make the thread cutting mechanism of Sewing machines become compacter.
In the thread cutting mechanism of above-mentioned Sewing machines, described actuator one is fixed on the downside of needle plate, and described connecting rod one is hinged on the downside of needle plate.
Adopt above-mentioned structure, the gap between each parts of being cut off by upper thread can be reduced further, make the thread cutting mechanism of Sewing machines become compacter.
Alternatively, in the thread cutting mechanism of above-mentioned Sewing machines, described guide frame comprises and being arranged on needle plate downside and sliding tray in strip and be located at sliding shoe in sliding tray, described actuator one is fixed on the upper side of needle plate, described suction line piece and one end of sliding shoe fix, and the other end of sliding shoe and actuator one fix.
In the thread cutting mechanism of above-mentioned Sewing machines, described actuator two is fixed on the downside of needle plate, described moving knife part comprises the moving knife two with blade and the connecting rod two be hinged with needle plate upper side, and one end of connecting rod two and moving knife two fix, described actuator two is connected by the other end of connector with described connecting rod two.
Actuator two is positioned on the downside of needle plate, to reduce the gap between each parts of being cut off by upper thread further, makes the thread cutting mechanism of Sewing machines become compacter.
Alternatively, in the thread cutting mechanism of above-mentioned Sewing machines, described moving knife part is be hinged on needle plate and have the moving knife three of blade, and described actuator two is fixed on the upper side of needle plate, and this actuator two is connected with moving knife three.
In the thread cutting mechanism of above-mentioned Sewing machines, described connector comprises the contiguous block be slidably connected on needle plate downside, the sidewall of the end that described connecting rod two is not connected with moving knife two offers pilot hole one, the upper side of described contiguous block has the guide in column, and described guide is plugged in pilot hole one.
Actuator two is cylinder, oil cylinder, this three of electromagnet any one be all fine.Contiguous block is driven to slide with the rotation converting connecting rod two to by actuator two, thus make moving knife two stable rotation and coordinate with stationary knife two to do shear action upper thread is cut off, the thread cutting mechanism that improve this Sewing machines realizes " shortening remains in the length of the upper thread on cloth " this purpose stability.
Alternatively, in the thread cutting mechanism of above-mentioned Sewing machines, described connector comprises the lead two be slidably connected on needle plate downside, the sidewall of the end that described connecting rod two is not connected with moving knife two offers pilot hole two, and the lower end of described lead two is plugged in described pilot hole two.
In the thread cutting mechanism of above-mentioned Sewing machines, described contiguous block is fixed with bearing pin, described guide is the bar portion of bearing pin.
Alternatively, in the thread cutting mechanism of above-mentioned Sewing machines, described guide is the lead one that contiguous block downside is protruded.
In the thread cutting mechanism of above-mentioned Sewing machines, the vacuum noz(zle) that described suction line piece comprises flexible pipe and makes in a tubular form and by rigid material, one end of described flexible pipe is connected with described getter device, and the flexible pipe other end is connected with described vacuum noz(zle).
Namely the hardness of vacuum noz(zle) is higher, avoid vacuum noz(zle), in breathing process, deformation occurs, thus guarantee that the air inlet of vacuum noz(zle) faces with pin hole all the time, make the straight line of upper thread vertical setting of tight one-tenth one all the time under the effect of getter device, thus effectively shorten the length of the upper thread remained on cloth.Nature, inhaling line piece is that one whole flexible pipe is also fine.
Compared with prior art, the thread cutting mechanism of this Sewing machines has the following advantages:
1, by the actuator one arranging getter device and the port of suction line piece and pin hole can be made just right, suction line piece is made under the effect of getter device, to produce negative pressure by the upper thread that remains on cloth toward drop-down, make the straight line that the tight one-tenth of upper thread one is vertically arranged, then actuator two works to drive the rotation of moving knife part and coordinate with stationary knife two and is cut off by the upper thread be straightened, thus effectively shortens the length of the upper thread remained on cloth.
2, each parts for being cut off by upper thread are all distributed in needle plate, effectively reduce the gap between each parts, make the thread cutting mechanism of this Sewing machines become compact; Secondly, stationary knife two and moving knife part are all positioned at pin hole place, effectively reduce stationary knife one, moving knife one, stationary knife two and the moving knife part gap between this, further increase the structural compactness of the thread cutting mechanism of this Sewing machines.
3, the position by arranging through hole and the pin hole that stationary knife two supplies upper thread to wear faces through hole and the blade of stationary knife two is positioned at through hole, distance between effective minimizing upper thread and the blade of stationary knife two, to shorten the length that upper thread extends to stationary knife two direction under the effect of moving knife part, thus shorten the length of the upper thread remained on cloth further.
4, the vacuum noz(zle) that hardness is high is adopted, avoid vacuum noz(zle), in breathing process, deformation occurs, thus guarantee that the air inlet of vacuum noz(zle) faces with pin hole all the time, make the straight line of upper thread vertical setting of tight one-tenth one all the time under the effect of getter device, thus effectively shorten the length of the upper thread remained on cloth.
Accompanying drawing explanation
Fig. 1 is the structural representation of this thread cutting mechanism on needle plate downside.
Fig. 2 is the structural representation of this thread cutting mechanism on needle plate upper side.
Fig. 3 is the structure for amplifying schematic diagram at A place in Fig. 2.
Fig. 4 is getter device and the syndeton schematic diagram inhaling line piece.
Fig. 5 inhales line piece to be in the structural representation inhaling line states.
Fig. 6 is the position view after moving knife two completes trimming.
In figure, 1, driving mechanism; 1a, connecting rod three; 1b, pull bar; 1c, drive link; 2, moving knife one; 3, stationary knife one; 4, moving knife part; 4a, moving knife two; 4b, connecting rod two; 4b1, pilot hole one; 5, line piece is inhaled; 5a, flexible pipe; 5b, vacuum noz(zle); 6, stationary knife two; 6a, through hole one; 7, needle plate; 7a, pin hole; 7b, chute; 8, getter device; 8a, jet; 8b, three-way pipe; 8c, electromagnetic valve; 9, actuator one; 10, slide block; 10a, shoulder block; 11, connecting rod one; 12, actuator two; 13, connector; 13a, contiguous block; 13b, guide.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As depicted in figs. 1 and 2, the thread cutting mechanism of this Sewing machines is made up of driving mechanism 1, moving knife 1, stationary knife 1, moving knife part 4, suction line piece 5, stationary knife 26 etc.Wherein, moving knife 1, stationary knife 1, moving knife part 4 and stationary knife 264 all have blade.
Sewing machines comprises the needle plate 7 with pin hole 7a, and moving knife 1 is hinged on the downside of needle plate 7, and stationary knife 1 is fixed on the downside of needle plate 7, and moving knife 1 coordinates with stationary knife 1 and does shear action under the effect of driving mechanism 1.In the present embodiment, driving mechanism 1 is made up of motor (not shown), mount pad (not shown), connecting rod three 1a, pull bar 1b, drive link 1c, crank etc.
Specifically, mount pad to be fixed in Sewing machines body and above-mentioned motor is fixed in mount pad.One end of pull bar 1b is hinged by the rotating shaft of cam and axial screw and motor; As shown in Figure 1, the other end and the drive link 1c of pull bar 1b fix, and the drive link 1c other end is fixed with the crank be hinged with needle plate 7, and the crank other end is connected with moving knife 1 by connecting rod three 1a.During use, machine shaft band moving cam rotates, and cam changes into moving axially of pull bar 1b, and then pull bar 1b drives crank to be converted to the axially-movable of connecting rod three 1a by drive link 1c, thus drives moving knife 1 to rotate around pin joint.
As shown in Figure 1 and Figure 4, line piece 5 is inhaled in a tubular form and be positioned on the downside of needle plate 7.Inhale line piece 5 one end and be connected with the getter device 8 that can make to produce negative pressure inside this suction line piece 5; Needle plate 7 has for drive inhale pin hole 7a that line piece 5 makes the port of the other end of this suction line piece 5 and needle plate 7 just to or away from actuator 1.
Specifically, as shown in Figure 4, getter device 8 comprises jet 8a, three-way pipe 8b and electromagnetic valve 8c, wherein, three-way pipe 8b is circular body, and the two ends of this three-way pipe 8b level are provided with the gas outlet of air inlet and relative air inlet, and the diameter of air inlet is less than the diameter of gas outlet; Jet 8a is connected with electromagnetic valve 8c respectively by tube connector with air inlet, to realize controlling by electromagnetic valve 8c the object that jet 8a supply gas in air inlet; Gas outlet is connected with suction line piece 5 by tube connector.During use, jet 8a inputs high-speed gas in air inlet, diameter due to air inlet is less than the diameter of gas outlet, make to produce negative pressure in gas outlet, now the air inhaled in line piece 5 flows to direction, gas outlet, thus make to produce negative pressure in suction line piece 5, then by the upper thread that remains on cloth toward drop-down, make the straight line that the tight one-tenth of upper thread one is vertically arranged.In the present embodiment, jet 8a is air delivery pump or air compressor.
Further illustrate, as shown in Figure 1 and Figure 5, inhale the vacuum noz(zle) 5b that line piece 5 comprises flexible pipe 5a and makes in a tubular form and by rigid material, one end of flexible pipe 5a is connected with the gas outlet on three-way pipe 8b by tube connector, and the flexible pipe 5a other end is connected with vacuum noz(zle) 5b.In the present embodiment, vacuum noz(zle) 5b is made up of the metal material that the quality such as copper alloy, iron is harder, and vacuum noz(zle) 5b and flexible pipe 5a is fixed together by glue.Nature, inhaling line piece 5 is that one whole flexible pipe 5a is also fine, just applicant thinks, inhale the vacuum noz(zle) 5b that line piece 5 adopts hardness high, avoid vacuum noz(zle) 5b, in breathing process, deformation occurs, thus guarantee that the air inlet of vacuum noz(zle) 5b faces with pin hole 7a all the time, make the straight line of upper thread vertical setting of tight one-tenth one all the time under the effect of getter device 8, thus effectively shorten the length of the upper thread remained on cloth.
Needle plate 7 is provided with the guide frame play the guiding role to the movement of inhaling line piece 5.In the present embodiment, as shown in Figure 1 and Figure 4, guide frame comprises and to be arranged on needle plate 7 downside and in the chute 7b of strip, the connecting rod 1 be located at the slide block 10 in chute 7b and be hinged on needle plate 7, inhale line piece 5 to fix with one end of slide block 10, and one end of the other end of slide block 10 and connecting rod 1 fixes, the other end and the actuator 1 of connecting rod 1 fix, thus rotated by actuator 1 drivening rod 1 with the rectilinear motion converting slide block 10 to, face with the port and pin hole 7a position that effectively ensure suction line piece 5, make the straight line of upper thread vertical setting of tight one-tenth one all the time under the effect of getter device 8, thus effectively shorten the length of the upper thread remained on cloth.Further illustrate, as depicted in figs. 1 and 2, the length direction of slide block 10 in strip and along chute 7b is arranged; The diapire of chute 7b be provided with arrange along chute 7b length direction and through hole in strip.Slide block 10 is located in through hole, the sidewall that two of this slide block 10 upper end are relative all has protrusion and shoulder block 10a in strip, shoulder block 10a is arranged along the length direction of slide block 10, and two shoulder block 10a all offset with the upper side of needle plate 7, to carry out spacing to the rotation of slide block 10, thus slide block 10 is stably worked.Nature, adopt chute 7b to be a dovetail groove, shape and the dovetail groove of slide block 10 match, and slide block 10 is entrenched in this technical scheme in dovetail groove can realize the object of slide block 10 steady operation equally.
Further optimization, as described in Figure 1, actuator 1 is fixed on the downside of needle plate 7, and connecting rod 1 is hinged on the downside of needle plate 7.In the present embodiment, actuator 1 is cylinder, and nature, actuator 1 is also all fine for oil cylinder or electromagnet.
As shown in Figure 2 and Figure 6, stationary knife 26 is fixed on the upper side of needle plate 7; Moving knife part 4 is hinged on the upper side of needle plate 7, and stationary knife 26 and moving knife part 4 are all positioned at the pin hole 7a place of needle plate 7.Needle plate 7 has the actuator 2 12 for driving moving knife part 4 to rotate, and after actuator 1 makes the port of the other end of suction line piece 5 and pin hole 7a faces, actuator 2 12 can drive moving knife part 4 to rotate and coordinate with stationary knife 26 and be cut off by the upper thread passed from described pin hole 7a.Specifically, in the present embodiment, as shown in Figure 1, actuator 2 12 is cylinder and is fixed on the downside of needle plate 7.Nature, actuator 2 12 is fine for oil cylinder or electromagnet more.
As shown in Figure 2, moving knife part 4 comprises moving knife two 4a with blade and connecting rod two 4b be hinged with needle plate 7 upper side, and one end and moving knife two 4a of connecting rod two 4b fix, and actuator 2 12 is connected with the other end of connecting rod two 4b by a connection piece 13.
Further illustrate, as depicted in figs. 1 and 2, connector 13 comprises the contiguous block 13a be slidably connected on needle plate 7 downside, the sidewall of the end that connecting rod two 4b is not connected with moving knife two 4a offers pilot hole one 4b1, the downside of contiguous block 13a has the guide 13b in column, and guide 13b is plugged in pilot hole one 4b1.In the present embodiment, as shown in Figure 1, contiguous block 13a runs through the gathering sill one had in strip, in this gathering sill one, be equipped with screw.Bar portion and the needle plate 7 of screw fix, and the head of screw and contiguous block 13a offset, thus realize being slidably connected of contiguous block 13a and needle plate 7.Nature, adopts " downside of needle plate 7 offers the gathering sill two in strip, contiguous block 13a is positioned at gathering sill two " this technical scheme, can realize being slidably connected of contiguous block 13a and needle plate 7 equally.
As depicted in figs. 1 and 2, contiguous block 13a is fixed with bearing pin, guide 13b is the bar portion of bearing pin.Nature, guide 13b is that the lead one that contiguous block 13a downside is protruded also is fine.
Further optimization, as shown in Figures 2 and 3, stationary knife 26 is provided with through hole one 6a worn for upper thread, and the position of through hole one 6a and the position of pin hole 7a face, and the blade of stationary knife 26 is positioned at through hole one 6a place, and the position that namely upper thread cuts off is positioned at through hole.Adopt above-mentioned structure, effectively reduce the distance between upper thread and the blade of stationary knife 26, to shorten the length that upper thread extends to stationary knife 26 direction under moving knife part 4 acts on, thus shorten the length of the upper thread remained on cloth further.Further illustrate, moving knife two 4a is also provided with the through hole two worn for upper thread, and the blade of moving knife two 4a is positioned at through hole two place.Under the effect of actuator 2 12, through hole two can face with the position of pin hole 7a.
When making, cloth is positioned at the upside of stationary knife 26, and upper thread is passed in pin hole 7a, through hole one 6a and through hole two successively and enters in cloth.After cloth is made, driving mechanism 1 drives to be positioned at moving knife 1 rotation on needle plate 7 downside and to coordinate with stationary knife 1 and is cut off by upper thread; As shown in Figure 1 and Figure 5, then actuator 1 work, make the port of vacuum noz(zle) 5b and pin hole 7a just right; Then electromagnetic valve 8c work makes jet 8a be connected with three-way pipe 8b, now the high velocity air of jet 8a generation enters in three-way pipe 8b, thus make to produce inside suction line piece 5 negative pressure by the upper thread that remains on cloth toward drop-down, make the straight line that the tight one-tenth of upper thread one is vertically arranged; As shown in Figure 2 and Figure 6, then actuator 2 12 works, and drives moving knife two 4a rotate and coordinate with stationary knife 26 and cut off by the upper thread be straightened by the cooperation of contiguous block 13a and connecting rod two 4b according to this, thus effectively shortening remains in the length of the upper thread on cloth.
Embodiment two
The present embodiment two with the structure of embodiment one and principle substantially identical, different place is: getter device 8 comprises asepwirator pump and electromagnetic valve, and asepwirator pump is connected with suction line piece by electromagnetic valve.During work, directly bled to inside suction line piece 5 by asepwirator pump, can make equally to produce negative pressure inside suction line piece 5.
Embodiment three
The present embodiment three with the structure of embodiment one and principle substantially identical, different place is: guide frame comprises and being arranged on needle plate 7 downside and sliding tray in strip and be located at sliding shoe in sliding tray, actuator 1 is fixed on the upper side of needle plate 7, inhale line piece 5 to fix with one end of sliding shoe, and the other end of sliding shoe and actuator 1 fix.
Embodiment four
The present embodiment four with the structure of embodiment one and principle substantially identical, different place is: moving knife part 4 is for be hinged on needle plate 7 and to have the moving knife three of blade, actuator 2 12 is fixed on the upper side of needle plate 7, and this actuator 2 12 is connected with moving knife three.
Embodiment five
The present embodiment five with the structure of embodiment one and principle substantially identical, different place is: connector 13 comprises the lead two be slidably connected on needle plate 7 downside, the sidewall of the end that connecting rod two 4b is not connected with moving knife two 4a offers pilot hole two, and the lower end of lead two is plugged in described pilot hole two.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (8)
1. the thread cutting mechanism of a Sewing machines, comprise driving mechanism (1), the moving knife one (2) being fixed on the stationary knife one (3) on needle plate (7) downside and being hinged on needle plate (7) downside, moving knife one (2) coordinates with stationary knife one (3) and does shear action under the effect of driving mechanism (1), it is characterized in that, described needle plate (7) downside is provided with suction line piece (5) in a tubular form, inhale line piece (5) one end and be connected with the getter device (8) that this suction line piece (5) inner side can be made to produce negative pressure, needle plate (7) has for drive inhale pin hole (7a) that line piece (5) makes the port of the other end of this suction line piece (5) and needle plate (7) just to or away from actuator one (9), described needle plate (7) upper side be fixed with stationary knife two (6) and be hinged with the moving knife part (4) with blade, this needle plate (7) also has for driving moving knife part (4) to make this moving knife part (4) coordinate with described stationary knife two (6) actuator two (12) cut off by the upper thread passed from described pin hole (7a).
2. the thread cutting mechanism of Sewing machines according to claim 1, it is characterized in that, described stationary knife two (6) is provided with the through hole one (6a) worn for upper thread, and the position of described through hole one (6a) and the position of described pin hole (7a) face, the blade of described stationary knife two (6) is positioned at through hole one (6a) place.
3. the thread cutting mechanism of Sewing machines according to claim 1 and 2, is characterized in that, described needle plate (7) is provided with the guide frame play the guiding role to the movement of inhaling line piece (5).
4. the thread cutting mechanism of Sewing machines according to claim 3, it is characterized in that, described guide frame comprises and being arranged on needle plate (7) downside and the chute (7b) in strip, the connecting rod one (11) being located at the slide block (10) in chute (7b) and being hinged on needle plate (7), described suction line piece (5) fixes with one end of slide block (10), and one end of the other end of slide block (10) and connecting rod one (11) fixes, the other end and the actuator one (9) of described connecting rod one (11) fix.
5. the thread cutting mechanism of Sewing machines according to claim 4, it is characterized in that, described actuator one (9) is fixed on the downside of needle plate (7), and described connecting rod one (11) is hinged on the downside of needle plate (7).
6. the thread cutting mechanism of Sewing machines according to claim 1 and 2, it is characterized in that, described actuator two (12) is fixed on the downside of needle plate (7), described moving knife part (4) comprises the moving knife two (4a) with blade and the connecting rod two (4b) be hinged with needle plate (7) upper side, and one end of connecting rod two (4b) and moving knife two (4a) fix, described actuator two (12) is connected by the other end of connector (13) with described connecting rod two (4b).
7. the thread cutting mechanism of Sewing machines according to claim 6, it is characterized in that, described connector (13) comprises the contiguous block (13a) be slidably connected on needle plate (7) downside, the sidewall of the end that described connecting rod two (4b) is not connected with moving knife two (4a) offers pilot hole one (4b1), the upper side of described contiguous block (13a) has the guide (13b) in column, and described guide (13b) is plugged in pilot hole one (4b1).
8. the thread cutting mechanism of Sewing machines according to claim 1 and 2, it is characterized in that, the vacuum noz(zle) (5b) that described suction line piece (5) comprises flexible pipe (5a) and makes in a tubular form and by rigid material, one end of described flexible pipe (5a) is connected with described getter device (8), and flexible pipe (5a) other end is connected with described vacuum noz(zle) (5b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419404.4U CN204780201U (en) | 2015-06-17 | 2015-06-17 | Sewing machine's thread trimming mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419404.4U CN204780201U (en) | 2015-06-17 | 2015-06-17 | Sewing machine's thread trimming mechanism |
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| CN204780201U true CN204780201U (en) | 2015-11-18 |
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| CN201520419404.4U Withdrawn - After Issue CN204780201U (en) | 2015-06-17 | 2015-06-17 | Sewing machine's thread trimming mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862891A (en) * | 2015-06-17 | 2015-08-26 | 浙江中捷缝纫科技有限公司 | Thread shearing mechanism of sewing machine |
| CN105624936A (en) * | 2016-03-16 | 2016-06-01 | 杰克缝纫机股份有限公司 | Thread trimming mechanism |
| CN111206347A (en) * | 2020-01-20 | 2020-05-29 | 拓卡奔马机电科技有限公司 | Device for reducing bird nest in sewing machine |
| CN112064221A (en) * | 2020-09-30 | 2020-12-11 | 拓卡奔马机电科技有限公司 | Thread cutting system of sewing machine and sewing method |
-
2015
- 2015-06-17 CN CN201520419404.4U patent/CN204780201U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862891A (en) * | 2015-06-17 | 2015-08-26 | 浙江中捷缝纫科技有限公司 | Thread shearing mechanism of sewing machine |
| CN105624936A (en) * | 2016-03-16 | 2016-06-01 | 杰克缝纫机股份有限公司 | Thread trimming mechanism |
| CN105624936B (en) * | 2016-03-16 | 2019-01-11 | 杰克缝纫机股份有限公司 | Thread cutting mechanism |
| CN111206347A (en) * | 2020-01-20 | 2020-05-29 | 拓卡奔马机电科技有限公司 | Device for reducing bird nest in sewing machine |
| CN112064221A (en) * | 2020-09-30 | 2020-12-11 | 拓卡奔马机电科技有限公司 | Thread cutting system of sewing machine and sewing method |
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Effective date of registration: 20160912 Address after: 317604 Taizhou Province, Yuhuan County, Lantau Island Road, Hing Hong Kong Road, No. 198 Patentee after: Zhejiang Zoje Sewing Technology Co., Ltd. Patentee after: Zhejiang Zhongyi Sewing Machine Co Ltd Patentee after: Zhejiang Besserman sewing machine Co., Ltd. Address before: 317600, Taizhou, Zhejiang province Yuhuan County barley island Street Hing Tung Road, No. 198 Patentee before: Zhejiang Zoje Sewing Technology Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170531 |
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| AV01 | Patent right actively abandoned |