CN107574590A - A kind of two-needle sewing machine - Google Patents
A kind of two-needle sewing machine Download PDFInfo
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- CN107574590A CN107574590A CN201710947071.6A CN201710947071A CN107574590A CN 107574590 A CN107574590 A CN 107574590A CN 201710947071 A CN201710947071 A CN 201710947071A CN 107574590 A CN107574590 A CN 107574590A
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- line
- sewing machine
- connecting rod
- needle sewing
- suture head
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Abstract
The invention discloses a kind of two-needle sewing machine, can be adjusted including position according to pin position can adjust according to pin position to have clamped the clamp assemblies of suture head (2) and position and coordinate will play suture head clamping to dial line hook component (1) with the clamp assemblies (2), in addition to cut off the thread cutter (33) of suture head to realize.Group line in two-needle sewing machine provided by the present invention, which hooks component and clamp assemblies, to be adjusted position according to needle position, complete to trigger in differing needles position and clamped the operation of suture head, suture head will be played by thread cutter again to cut off, suture head is played so as to play a part of cutting short two-needle sewing machine, avoids the appearance of Bird's Nest.
Description
Technical field
The present invention relates to textile processing field, more particularly to a kind of two-needle sewing machine.
Background technology
For at present, sewing machine is in the continuous course of work, after a sewing work is completed, as needed first by face
Line is cut, then carries out the sewing of next step.A longer suture head can be reserved after trimming, avoids upper thread from being taken off from needle
Fall.When playing seam again, longer suture head can be stayed on sewing, because sewing machine plays seam, speed is fast, and can make residual plays suture
Head is seamed into nest like, influences the aesthetics of product, it usually needs manually repaired.
In the prior art, record sewing machine and go Bird's Nest device and application method, it use a kind of to will be long
Play the device cut short of suture head, specific practice is after sewing machine performs trimming action, is hooked by bracing wire by the end of a thread pull-up,
And coordinate with clamp and clamp the end of a thread, when eedle moves down, nipped the end of a thread and the blade located at crossed beam trunking bottom
Contact, and then the end of a thread is cut off, the appearance of Bird's Nest is avoided, but the technology can be only applied in single needle sewing machine, and in work
In industry, the application of the two-needle sewing machine automatically controlled is more extensive, and Bird's Nest problem equally occurs in two-needle sewing machine.
Therefore, how to realize that two-needle sewing machine removes Bird's Nest, be those skilled in the art's technical issues that need to address.
The content of the invention
It is an object of the invention to provide a kind of two-needle sewing machine, including position can adjust according to pin position to have clamped suture
The clamp assemblies of head and position can adjust according to pin position and coordinate the line of dialling for stepping up a suture head to hook with the clamp assemblies
Component, in addition to cut off the thread cutter of suture head to realize.
Preferably, described group of line hooks component and included：
It can realize that lifts and put down dials line connecting rod；
It is connected with described group of line connecting rod, transmitting the transmission mechanism for lifting and putting down action for dialling line connecting rod；
It is connected with the transmission mechanism by pitman shaft, dials line hook to realize two that dial line operation；And two described groups
Line is hooked and can moved along the pitman shaft towards opposite direction；
The clamp assemblies, which include two, can realize clamp bracket that is synchronous with described group of line hook and moving in the same direction respectively.
Preferably, in addition to support the presser feet bottom plate of the thread cutter, the presser feet bottom plate is also further provided with using
With the metallic channel for separating a suture head with upper thread, the metallic channel extends to the lower section of the thread cutter.
Preferably, the presser feet bottom plate also includes seam, and the metallic channel is located at the end of the seam, and the seam is also
Provided with positioned at the bottom of the seam having realized resigning groove that suture head passes from the metallic channel.
Preferably, the air intake device the end of a thread of cutting to be siphoned away is still further comprised.
Preferably, the transmission mechanism is specially four-bar linkage structure, and the four-bar linkage structure includes：
The mounting bracket that position is fixed；
First end and the drive link of described group of line rod hinge connection, the second end of the drive link is articulated with first connecting rod
Top；And the drive link is additionally provided with the middle-end being hinged with the mounting bracket；
The second connecting rod being hinged with the bottom of the first connecting rod by the pitman shaft；The pitman shaft is positioned at described the
The head end of two connecting rods；And the tail end of the second connecting rod is hinged with the mounting bracket.
Preferably, in addition to, described including bending body, the side of the bending body is fixed with the mounting bracket to be connected
Connect, the opposite side of the bending body is connected with the slidable clamp bracket.
Preferably, the described group of line, which hooks the body that includes being vertically arranged and positioned at the body tip, with the body, is in
The hook body that angle is set；
The end of the clamp bracket is provided with the outside of the clamp bracket, pressed from both sides to be contacted with the hook body with realizing
The holding piece of suture head is held.
Preferably, the end for hooking body has hooking portion, and the bottom in the hooking portion has to be slided with for playing suture head
Enter the arc-shaped transition in the hooking portion.
Preferably, also it is further provided with adjusting the pressure regulation dress of the holding piece chucking power in the clamp bracket
Put.
Of the prior art except Bird's Nest device is only applicable to single needle sewing machine, its clamp is fixedly connected with connecting plate, even
Fishplate bar is fixed on head again, therefore the position of clamp can not change；Drag hook is fixed in rotating shaft also by bolt simultaneously, position
Putting to change；And the blade of prior art is fixed on crossed beam trunking bottom, its position can not equally adjust.And two-needle sewing machine
With different pin positions, it is desirable to except Bird's Nest device can be according to pin position difference flexibly and easily adjustment position, and then realize and cut short
Suture head is played, avoids the appearance of Bird's Nest.
Two-needle sewing machine has a different pin positions, i.e. width is different between two eedles, for example, 3.2mm, 6.4mm or
9.6mm, operating personnel can adjust the width between two eedles, two-needle sewing machine provided by the present invention, its group as needed
Line hooks component can be different according to pin position, are moved to required position, and corresponding clamp assemblies can also be moved to dialling line hook group
The corresponding position of part, fitted by dialling line hook component with clamp assemblies, a suture head will be played and clamped, seam has been clamped so as to realize
The purpose of the end of a thread.
The end of a thread of the prior art can fall on product surface when dialling line and hooking and work again, and product is polluted.At this
Invent in further scheme, further comprises the air intake device close to clip position, after the end of a thread is cut, filled by air draught
Put and siphon away the end of a thread, avoid the end of a thread from falling and the product processed is polluted.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
The schematic diagram for the two-needle sewing machine that Fig. 1 is provided for a kind of embodiment of the present invention；
Fig. 2 is that the structural representation that line hooks component is dialled in Fig. 1；
Fig. 3 is the structural representation of wire-clamping device in Fig. 1；
Fig. 4 is that the installation diagram that line hooks component and clamp assemblies is dialled in embodiment；
Fig. 5 is a kind of schematic diagram of the two-needle sewing machine presser foot component structure provided in embodiment；
Fig. 6 is the structural representation of presser feet bottom plate in Fig. 5；
Fig. 7 is the upward view of presser feet bottom plate in Fig. 5.
Embodiment
The core of the present invention is to provide a kind of two-needle sewing machine, can be different according to needle position, and line hook group is dialled in adjustment
The position of part and clamp assemblies, realize that two-needle sewing machine removes Bird's Nest.
In order that those skilled in the art better understood when the present invention program, below in conjunction with the accompanying drawings and it is embodied
The present invention is described in further detail for mode.
It refer to Fig. 1 to Fig. 4, the schematic diagram for the two-needle sewing machine that Fig. 1 is provided for a kind of embodiment of the present invention；
Fig. 2 is that the structural representation that line hooks component is dialled in Fig. 1；Fig. 3 is the structural representation of wire-clamping device in Fig. 1；Fig. 4 is specific implementation
The installation diagram that line hooks component and clamp assemblies is dialled in mode.
As shown in figure 1, the two-needle sewing machine in this specific embodiment includes dialling line hook component 1, clamp assemblies 2, presser feet group
Part 3 and group line electromagnet assembly 4.Dial line electromagnet assembly 4 in electromagnet obtain it is electric after there is magnetic, in the attraction of electromagnet
Under, dial the line connecting rod 11 of dialling that line is hooked in component 1 and be lifted upward motion, making group line hook 110, oliquely downward the end of a thread is caught in motion, electricity
Magnet dead electricity, dial line connecting rod 11 and origin-location is laid down go back in the presence of back-moving spring, group line is hooked 110 and transport obliquely upward
It is dynamic, it is engaged with clamp assemblies 2 and clamps the end of a thread.The effect for dialling line electromagnet assembly 4 is that line connecting rod 11 is dialled in control, and then is operated
Dial line and hook 110 up and down motions, realization is caught on and clamped the purpose of suture head, is provided with line electromagnet assembly 4 is dialled with dialling line
The connected connecting rod of connecting rod 11, connecting rod bottom have groove-like connecting portion, dial line connecting rod 11 and are connected in groove-like connecting portion
And can vertically move up and down, groove-like connecting portion bottom is provided with the first stopping means, and line connecting rod 11 is dialled to limit
The distance moved up.In addition to line hook action is completed using electromagnet, the equipment such as bent axle, cylinder can also be used to realize identical
Purpose.
Dial the structure that line hooks component 1, as shown in Fig. 2 including mounting bracket 18, mounting bracket 18 by tabular connecting portion with
Installation portion perpendicular to connecting portion is formed, and installation portion is installed on head of sewing machine, and part described below enters with mounting bracket 18
Row connection is connected with tabular connecting portion；The middle-end of drive link 14 passes through fourth of the twelve Earthly Branches pin 13 and the upper articulation of mounting bracket 18, driving
The end of the first end of connecting rod 14 and group line connecting rod 11 is hinged, its second end and the top of first connecting rod 19 are hinged, in this implementation
Middle-end and the first end of drive link 14 and the second end form an obtuse triangle in example, middle-end be located at the apex at obtuse angle and
With first end close to the arrangement mode is a kind of preferred scheme, and certain middle-end, first end and the second end can also use other
Mode is arranged.The bottom of first connecting rod 19 is be hinged by pitman shaft 112 with the head end of second connecting rod 17, and the tail end of second connecting rod 17 passes through
Connecting rod 15 is articulated with the bottom of mounting bracket 18, dials the head end of line connecting rod 11 and is connected to group line electromagnet assembly 4, passes in the present embodiment
Pass mechanism and collectively form four-bar linkage structure for mounting bracket 18, drive link 14, first connecting rod 19 and second connecting rod 17, four it
Between using be hinged, dial the end of line connecting rod 11 and be hinged with the first end of drive link 14, dial and gone back between line connecting rod 11 and mounting bracket 18
Back-moving spring is installed, back-moving spring puts down go back to origin-location will dial line connecting rod 11 after electromagnet dead electricity.Dial line and hook 110
The pitman shaft 112 being fixed between first connecting rod 19 and second connecting rod 17, when group line, which hooks 110, is moved to least significant end, dial line and hook
110 head is more than eedle needle point the distance between to fourth of the twelve Earthly Branches pin 13 to the distance between fourth of the twelve Earthly Branches pin 13.
The action that group line connecting rod 11 is lifted and put down is transferred to as transmission mechanism and dials line hook 110 by the four-bar linkage structure
On, detailed process is to dial line connecting rod 11 to be lifted under the attraction of electromagnet, dials line connecting rod 11 pulls drive link 14 first
End moves up, and drive link 14 rotates around fourth of the twelve Earthly Branches pin 13, and its second end moves down, and promotes first connecting rod 19 to move down, and dials
Line hooks promotion of 110 one side by first connecting rod 19, on the other hand again by the constraint of second connecting rod 17, in the two common work
Oliquely downward it is moved under below eedle, so that dialling line hooks 110 actions for completing downward hooking.In addition to four-bar linkage structure,
Other structures can also be used as transmission mechanism, such as one end and group line connecting rod 11 are hinged, the other end is consolidated with dialling line hook 110
Connect, the middle transmission lever being flexibly connected by stopper slot with mounting bracket 18.
Dialling line hook component 1 includes two groups of lines hooks 110, dials line hook 110 for two and is respectively used to hook the line taken on two eedles
Head, dial line hook 110 and formed by body and positioned at the hook body 114 of body tip, it is in be moved closer to by top to end to dial line and hook 110
Eedle angle of inclination, hook and be provided with hooking angle between body 114 and body, the angle is typically smaller than 90 °, can be also arranged as required to
Into more than or equal to 90 °.It is its end that body 114, which is hooked, away from body one end, and it is hooking portion to hook the end of body 114, hooks the bottom of body 114 extremely
It is changeover portion between hooking portion, it is at an acute angle between the tangent line of the changeover portion and group line 110 directions of advance of hook, and angle gradually subtracts
Small, the shape of the changeover portion has been advantageous to suture head and has been included in hooking portion, naturally it is also possible to is arranged to have by changeover portion as needed
There are the other shapes of identical function.Hooking portion is provided with V-arrangement conductor trench, dials the shape that line hooks and ensures that it is easier to catch on the end of a thread.
Dial line and hook body and carried out with pitman shaft 112 by clip 115 affixed, there is through hole, pitman shaft 112 is installed on this on clip 115
In through hole, also there is the mounting hole parallel to through hole radial direction in addition on clip 115, line hook body is dialled for installing；Clip 115 is logical
The fastening force for crossing the first fixing device is fixed on pitman shaft 112, and the fastener in the present embodiment is the first lock-screw
111, when the first lock-screw 111 is tightened, clip 115 is fixed with the position of pitman shaft 112, is dialled line and is hooked 110 by the second fixation dress
Put and be fixed on clip 115, the second fastener in the present embodiment is the second lock-screw 113, unclamps the first lock-screw
111, clip 115 can slide along pitman shaft 112, so as to realize that the line hook 110 of dialling being fixed on clip 115 moves along pitman shaft,
Adjust to the position being adapted with pin position, wherein, the position being adapted with pin position refers to eedle and and the hook body corresponding to eedle
114 on the same perpendicular parallel to quadric chain, during dialling line hook 110 and oliquely downward moving, hooks
Body 114 can pass through immediately below eedle so as to the position for catching on a suture head.Clip in the present embodiment is pitman shaft 112
A kind of connected mode for hooking 110 with dialling line, in addition to using clip, the present invention can also use other connected modes, such as even
Set link slot to link extension bar to connect group line on bar axle 112, and allow connecting rod to be horizontally slipped in the link slot.
Shown in Figure 3, the structure of clamp assemblies 2 includes clamp bracket 21, pressure adjustment sheet 26 and holding piece 27, and pressure is adjusted
Nodal plate 26 and holding piece 27 are fixed in clamp bracket 21 by fixing device 22, and pressure adjustment sheet 26 is rigid sheet, clamping
Piece 27 is flexible flake, and pressure adjustment sheet 26 is arranged at the top of holding piece 27, to maintain the chucking power on holding piece 27, the two
In a thickness direction be in zigzag, the two bottom is while be fixed in clamp bracket 21, and top is while by sequentially passing through clamping
The bolt that support 21 accommodates piece 27, pressure adjustment sheet 26 and tight nut 24 with clamp bracket 21, adjusting nut 23 is attached, and is led to
The distance between pressure adjustment sheet 26 and clamp bracket can be adjusted by overregulating nut 23 and locking nut 24, and then can be adjusted
Chucking power on holding piece 27.In addition to the chucking power of holding piece 27 is adjusted using adjusting nut and locking nut, may be used also
To change the bending angle of pressure adjustment sheet 26, to change the chucking power on holding piece 27.
Clamp bracket 2 refers to Fig. 4 with dialling the line hook attachment structure of component 1, and the top of clamp bracket 21, which is provided with, to be used to connect
Strip-type hole 28, clamp bracket 21 is connected by the attachment means through strip-type hole 28 with adjusting bracket 52, and adjusting bracket 52 is wrapped
Bending body is included, is two connecting holes laterally arranged on the left of bending body, is two companies of longitudinal arrangement on the right side of bending body
Hole is connect, bending body both sides are mutually perpendicular to, and clamp bracket 21 is connected to the left side of bending body, and attachment means typically select spiral shell
Bolt, the width between attachment means is less than the length of strip-type hole 28, therefore clamp bracket 21 can be real along the adjustment position of strip-type hole 28
Existing clamp assemblies 2 move along strip-type hole.It is connected on the right side of the adjustment bending body of support 52 and dials the mounting bracket that line hooks component 1
18；Because being connected on the right side of bending body with mounting bracket 18, the line in the lateral connection hole on the left of bending body is perpendicular to bending sheet
On the right side of body, strip-type hole 28 is engaged with lateral connection hole again, so the installation site of strip-type hole 28 is perpendicular to mounting bracket 18, again
Because pitman shaft 112 is also perpendicular to mounting bracket 18, strip-type hole 28 is parallel with pitman shaft 112, and strip-type hole 28 is with connecting
Bar axle 112 is parallel, can be moved in parallel so clamp assemblies 2 and group line hook component 1, the two can cooperate.Installation branch
Frame 18 is also associated with the second stopping means 53 with adjustment support 52, and the second stopping means is roughly triangular, and one side portion is set
There is longitudinal link slot, its bottom side portion coordinates to limit the distance that second connecting rod 17 moves up with second connecting rod 17, and then
Limit and dial line and hook 110 upward displacements, the shape of the second stopping means 53 is not limited only to triangle, can also use it is circular,
The other shapes such as rectangle.Attachment means are through connecting hole, the link slot of the second stopping means 53 and the installation on the right side of bending body
Support 18, three is linked together, and the connection hole length of the second stopping means 53 is longer than the distance between two attachment means, can
To be adjusted as needed to the position of stopping means 53.Realize that the structure that clamp assemblies 2 move left and right is not limited only to stripe shape
Hole, rail plate connection clamp assemblies 2 and adjustment support 52 can also be used, clamp assemblies 2 can slide in guide rail, then pass through
The position of stopping means fixed clamp component 2.Clamp assemblies 2, which correspond to the quantity for dialling line hook, also two, the clamping of left and right two
The structure of component 2 is similar, and it is also roughly the same with the mounting means for dialling line hook component 1, will not be repeated here.
Thread cutter is arranged in the bar shaped mounting hole under crossed beam trunking in the present embodiment, and thread cutter can move along bar shaped mounting hole
It is dynamic, to adapt to the demand of differing needles position.Certain thread cutter can also use other mounting means with crossed beam trunking, as long as can expire
The requirement of foot adjustment secant cutter position.
The two-needle sewing machine workflow that the present invention is carried is as follows, first adjusts eedle to the pin position of needs, then unclamp
The bolt that line hooks clip 115 and fixed clamp support 21 in component 1 is dialled, line hook 110 will be dialled and clamping device 2 is adjusted to suitable
Behind position, then the two is fixed, and after carrying out appropriate adjustment to the position of thread cutter as needed, start sewing operation.When
After two-needle sewing machine completes a trimming operation, electric-control system will dial line electromagnet assembly 4 and circuit communication, dial line electromagnet group
Part 4 it is electric, attract to dial line connecting rod 11 and move upwards, and then make to dial line to hook and 110 oliquely downward move, caught on suture head；Dial line
The dead electricity of electromagnet assembly 4, dial line connecting rod 11 and original position is pulled in the presence of back-moving spring, group line is hooked 110 and transport obliquely upward
Dynamic and holding piece 27 has been matched for clamping tightly suture head；When sewing machine plays seam again, eedle is descending, and it is in V between suture head and upper thread to rise
Font, play suture head and enter in crossed beam trunking, as eedle moves down, the contact with crossed beam trunking of suture head is played, on contact point
Tension force constantly increase, finally cut off suture head, user can be after that time interval, automatically controlled with prefixed time interval
System will dial line electromagnet assembly 4 and circuit and disconnect, certain user can also on the first stopping means install sensor, work as biography
When sensor detects that dial line connecting rod 11 is in contact with the first stopping means, signal is sent to electric-control system, electric-control system receives biography
Line electromagnet assembly 4 will be dialled after the signal that sensor is sent to disconnect with circuit.
Two-needle sewing machine provided by the present invention, it can be good at coordinating two-needle sewing machine to use, can be stitched according to crosspointer
Thread machine differing needles position adjustment clamping device position, ensure that on two eedles rise a suture head can be trimmed, and then
Prevent on the product of two-needle sewing machine and Bird's Nest structure occur.
Needing to carry out secant cutter position appropriate adjustment when changing changable needle position in the above-described embodiments, operation is relatively complicated,
In the present embodiment, thread cutter is installed in presser foot component 3, because presser foot component 3 is always engaged with eedle, thread cutter is positioned at pressure
It can be realized as having cut off the purpose of suture head in pin component 3, so as to avoid the adjustment operation to thread cutter.
Fig. 5 to Fig. 7 is refer to, Fig. 5 is the two-needle sewing machine presser foot component provided in a kind of embodiment of the present invention
The schematic diagram of structure, Fig. 6 are the structural representation of presser feet bottom plate in Fig. 5, and Fig. 7 is the upward view of presser feet bottom plate in Fig. 5.
Referring to Fig. 5, presser foot component 3 includes pressure foot 31, thread cutter pressing plate 32, thread cutter 33, presser feet bottom plate 34 and is oriented to
Pin 35, pressure foot 31 are connected with presser feet bottom plate 34 by guide finger 35, and the center of presser feet bottom plate 34 is provided with thread cutter mounting groove, secant
Knife 33 and thread cutter pressing plate 32 are installed in the mounting groove, and the effect of thread cutter pressing plate 32 is that increase is put on thread cutter 33
Thrust, in some cases can also be without using thread cutter pressing plate 32.
Referring to Fig. 6, presser feet bottom plate 34 is provided with the two strip seams 38 extended to from the top of presser feet bottom plate 34 in the middle part of it,
The knife edge of thread cutter 33 is provided with metallic channel 36 towards seam direction, every seam bottom, and metallic channel 36 extends to above-mentioned cut
Under line knife 33, even if the knife edge of thread cutter 33 is covered in the top of metallic channel 36, its width is less than seam and with seam in certain
Angle, a bossing can be formed between metallic channel 36 and seam.When sewing machine plays seam again, play suture head and be brought into seam
In, suture is played as eedle is descending, is played suture head and is entered metallic channel, the bossing will play suture head and upper thread and separate；Eedle
During descending, play a suture head and contacted with thread cutter 33, the tension force of contact position constantly increases, eventually through thread cutter 33 by the end of a thread
Cut off.Referring to Fig. 7, in order to prevent suture head from being pushed down by the protruding parts of wire groove edge, the pressing sole in the protruding parts
Portion, resigning groove 37 is set on thickness direction, is that certain gap is left between protruding parts and sewing, so as to avoid suture head
Pushed down by presser feet bottom plate 35.
In the present embodiment, thread cutter 33 is located in presser foot component 3, and presser foot component 3 is adapted to the difference of eedle in itself
Pin position, operated so when pin position changes still secant can be completed by thread cutter 33 in presser foot component 3, so as to avoid pair
The adjustment of the position of thread cutter 33.
In above-described embodiment, the suture head that rises cut still is clamped in and dials line and hook between device 1 and clamping device 2, when dialling
Line hook device 1 again hooking when, the end of a thread for clamp can drop to goods in process surface originally, be needed after completion processing
Manually to be arranged.
Product is polluted in order to avoid the end of a thread of cutting, in the present invention can also be in the fixation spiral shell of clamping device 2
Air intake device is installed additional on nail 22, installing plate is carried on the suction nozzle 25 of the air intake device, installing plate is installed on by fixing screws 22
In clamp bracket 21, holding piece 27 is directed in the inlet scoop of suction nozzle 25, the other end of suction nozzle is provided with the air-breathing of small air pump etc
Equipment is simultaneously connected with head collecting device.
After the completion of a trimming thread ends act, the end of a thread cut off by thread cutter 33 is still clamped in group line hook 110 and clamping
Between piece 27.Electric-control system will be dialled while line electromagnet assembly 4 is connected with circuit and also send enabling signal to air intake device, inhale
Wind apparatus starts air draught；It is descending to dial line hook 110, is clamped in the end of a thread that group line is hooked between 110 and holding piece 27 originally and is released, lead to
Air intake device is crossed to suck the end of a thread of release in the end of a thread retracting device by suction nozzle 25；Electric-control system will dial line electromagnet assembly 4 with
When circuit disconnects, stop signal is sent to air intake device, air intake device stops air draught.The startup and stopping of air intake device can be with
Dial that line electromagnet assembly 4 is synchronous to be carried out, can also prefixed time interval, dial line electromagnet assembly 4 act between or open afterwards
Stop, be about in time to siphon away a suture head when suture head unclamps under line hooks 110 as long as ensureing to dial；Can also be according to need
When setting sewing machine progress trimming thread ends action, air intake device does not start, and after the completion of trimming thread ends action, electric control system controls are dialled
Line electromagnet assembly 4 and air intake device complete a Thread odds suction action；When can also carry out trimming thread ends action every time, air intake device
Also air draught action is carried out, the action of last trimming thread ends is remained in dial and plays suture head between line hook 110 and holding piece 27
Siphon away.
Air intake device in the present embodiment can reclaim to the end of a thread of cutting, avoid the end of a thread from falling in product surface, nothing
Need manually to handle the end of a thread.
The term such as " on ", " under " cited in this specification, "front", "rear", " head ", " end ", only for convenience of describing to tie
The shape of structure and position, it is not its inevitable installation site, on the premise of substantive content in not changing technical scheme, to structure
Between relative position change, fall within protection scope of the present invention.
Two-needle sewing machine provided by the present invention is described in detail above, applies specific implementation example herein
Principle and implementation normal form to the present invention are set forth, and the explanation of above example is only intended to help the side for understanding the present invention
Method and core concept.It should be pointed out that for those skilled in the art, the premise of the principle of the invention is not being departed from
Under, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the protection of the claims in the present invention
In the range of.
Claims (10)
1. a kind of two-needle sewing machine, it is characterised in that can be adjusted including position according to pin position to have clamped the clamping of suture head
Component (2) and position can adjust according to pin position and coordinate with the clamp assemblies (2) and will play group line hook group of suture head clamping
Part (1), in addition to cut off the thread cutter (33) of suture head to realize.
2. two-needle sewing machine according to claim 1, it is characterised in that described group of line, which hooks component (1), to be included：
It can realize that lifts and put down dials line connecting rod (11)；
It is connected with described group of line connecting rod (11), transmitting the transmission machine for lifting and putting down action for dialling line connecting rod (11)
Structure；
It is connected with the transmission mechanism by pitman shaft (112), dials line hook (110) to realize two that dial line operation；And two
Described group of line hooks (110) and can moved on the pitman shaft, along the pitman shaft (112) towards opposite direction；
The clamp assemblies (2), which include two, can realize clamping that is synchronous with described group of line hook (110) and moving in the same direction respectively
Support (21).
3. two-needle sewing machine according to claim 2, it is characterised in that also include to support the thread cutter (33)
Presser feet bottom plate (34), the presser feet bottom plate (34) are also further provided with the metallic channel a suture head to be separated with upper thread
(36), the metallic channel (36) extends to the lower section of the thread cutter (33).
4. two-needle sewing machine according to claim 3, it is characterised in that the presser feet bottom plate (34) also includes seam, institute
State the end that metallic channel (36) is located at the seam, the seam is additionally provided with positioned at the bottom of the seam having realized suture
The resigning groove (37) that head passes from the metallic channel (36).
5. according to the two-needle sewing machine described in any one of Claims 1-4, it is characterised in that also include to be risen what is cut off
The air intake device that suture head siphons away.
6. according to the two-needle sewing machine described in any one of claim 2 to 4, it is characterised in that the transmission mechanism is specially four
Bar linkage structure, the four-bar linkage structure include：
The mounting bracket (18) that position is fixed；
The first end drive link (14) be hinged with described group of line connecting rod (11), the second end of the drive link (14) is articulated with
The top of first connecting rod (19)；And the drive link (14) is additionally provided with the middle-end being hinged with the mounting bracket (18)；
The second connecting rod (17) being hinged with the bottom of the first connecting rod (19) by the pitman shaft (112)；The pitman shaft
(112) it is located at the head end of the second connecting rod (17)；And the tail end of the second connecting rod (17) is cut with scissors with the mounting bracket (18)
Connect.
7. two-needle sewing machine according to claim 6, it is characterised in that also including adjusting bracket (52), the regulation branch
Frame (52) includes bending body, and the side of the bending body is fixedly connected with the mounting bracket (18), the bending body
Opposite side be connected with the slidable clamp bracket (21).
8. according to the two-needle sewing machine described in any one of claim 2 to 4, it is characterised in that described group of line, which hooks (110), to be included erecting
The body directly set and the hook body (114) set positioned at the body tip, with the body in angle；
The end of the clamp bracket (21) is provided with the outside of the clamp bracket (21), being connect with the hook body (114)
Touch the holding piece (27) that suture head has been clamped with realization.
9. two-needle sewing machine according to claim 8, it is characterised in that
The end for hooking body (114) has hooking portion, and the bottom in the hooking portion has described in being slipped into for a suture head
The arc-shaped transition in hooking portion.
10. two-needle sewing machine according to claim 8, it is characterised in that also further set on the clamp bracket (21)
There is the pressure-regulating device for adjusting the holding piece (27) chucking power.
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| CN201710947071.6A CN107574590B (en) | 2017-10-12 | 2017-10-12 | Double-needle sewing machine |
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| CN108251987A (en) * | 2018-04-23 | 2018-07-06 | 浙江美机缝纫机有限公司 | Sewing machine removes Bird's Nest device |
| CN110144680A (en) * | 2019-06-21 | 2019-08-20 | 英商马田纺织品(中国-中山)有限公司 | One kind being used for bartacker broken needle protection integrated control device |
| CN110965220A (en) * | 2019-12-12 | 2020-04-07 | 东莞理工学院 | Thread take-up mechanism of industrial sewing machine |
| WO2021189749A1 (en) * | 2020-03-23 | 2021-09-30 | 杰克缝纫机股份有限公司 | Sewing machine and upper thread tension adjustment and bird nest reduction device thereof |
| CN113604984A (en) * | 2021-07-29 | 2021-11-05 | 河北奔发制衣有限公司 | Chain double-needle linking machine |
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |