CN107012597A - A kind of simple needle gage governor motion of sewing machine and sewing machine - Google Patents
A kind of simple needle gage governor motion of sewing machine and sewing machine Download PDFInfo
- Publication number
- CN107012597A CN107012597A CN201710296544.0A CN201710296544A CN107012597A CN 107012597 A CN107012597 A CN 107012597A CN 201710296544 A CN201710296544 A CN 201710296544A CN 107012597 A CN107012597 A CN 107012597A
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- needle gage
- eccentric wheel
- swinging block
- sewing machine
- main shaft
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/22—Work-feeding means with means for setting length of stitch
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of simple needle gage governor motion of sewing machine, including main shaft, it is fixed on the driving wheel on main shaft, and work feed connecting rod, also include driving needle gage eccentric wheel, and be located at driving wheel and open the swinging block between needle gage eccentric wheel, driving wheel, swinging block and drive needle gage eccentric wheel and mutually abut against, open needle gage eccentric wheel be provided be arranged on swinging block in open needle gage connecting portion, open the periphery that needle gage connecting portion is installed in rotation on main shaft, and be engaged with swinging block, work feed connecting rod is installed in rotation on the periphery of swinging block, that drives needle gage eccentric wheel and main shaft is hinged center O1, open the cooperation center O2 of needle gage eccentric wheel and swinging block, and swinging block and work feed connecting rod are hinged center O3 three's eccentric setting.Needle gage Principles of Regulation are simple " crank rocking beam formula " structure from original " four link type " structure change by the application, reduce the quantity for the vital part for realizing needle gage regulation, and by the neat appearance of part, reduce difficulty of processing and processing cost.
Description
Technical field
The present invention relates to a kind of garment sewing equipment, more particularly to a kind of simple needle gage governor motion of sewing machine and sewing
Machine.
Background technology
At present, needle gage governor motion is equipped with sewing machine, for metering needle away from size, to meet different sewing
It is required that.As depicted in figs. 1 and 2, it is inclined that it mainly includes main shaft 100, handwheel 200, work feed to existing Sewing machines needle pitch modulating mechanism
Heart wheel 300, small eccentricity wheel 400, eccentric wheel 500, work feed connecting rod 600, bearing 700, needle gage eccentric wheel 800 is driven, needle gage is opened and lifts torsion
Axle 900, sliding block 110, ratchet 120, spring 130, torsion spring 140 etc., wherein, handwheel 200 is fixed on the end of main shaft 100, work feed
Eccentric wheel 300 is fixed on main shaft 100, and the endoporus of small eccentricity wheel 400 matches with the pin 150 being fixed on work feed eccentric wheel 300
Close, and the outer rim of small eccentricity wheel 400 is engaged with the eccentric orfice on eccentric wheel 500, right section of part of eccentric wheel 500 relative can turn
It is arranged on and is opened on left section of part of needle gage eccentric wheel 800 dynamicly, and right section of part of eccentric wheel 500 is rotatable by bearing 700
Ground is arranged in the centre bore of work feed connecting rod 600, and sliding block 110, which is arranged on, to be opened in the groove of the right edge of needle gage eccentric wheel 800 and can be
Slided in groove, ratchet 120 is fixed on main shaft 100.
The needle gage Principles of Regulation of the needle gage governor motion of said structure are：As shown in figure 1, work feed eccentric wheel 300, small eccentricity
Wheel 400, eccentric wheel 500 and open needle gage eccentric wheel 800 collectively constitute for metering needle away from " four link type " structure；Metering needle away from
When, needle gage is pinned out with hand and lifts the afterbody for turning round axle 900, handwheel 200 is rotated, handwheel 200 drives main shaft 100, work feed eccentric wheel
300th, eccentric wheel 500 and the synchronous axial system of needle gage eccentric wheel 800 is opened, turns round the head of axle 900 until opening needle gage and lifting and be stuck in out needle gage
In groove on the outer peripheral face of eccentric wheel 800, limit the rotation for driving needle gage eccentric wheel 800；Sliding block 110 is promoted to make on sliding block 110 again
Tooth is separated with ratchet 120, and handwheel 200 is now rotated further forward or backwards, then can make open the relative main of needle gage eccentric wheel 800
100 rotate, so that adjust work feed connecting rod 600 and eccentric wheel 500 is hinged position of the center relative to main shaft 100, make eccentric wheel
500 change relative to the position angle of main shaft 100, namely adjustment Fig. 2 midpoint E position, make the spacing of 2 points of AE in Fig. 2
From increased or decrease；The size of AE distance between two points correspondence needle gage in Fig. 2, so as to realize the increase of needle gage or reduce tune
Section.Needle gage regulation terminate after, open needle gage lift torsion axle 900, open needle gage lift torsion axle 900 resetted in the presence of spring 130, take off
Leave the groove on the outer peripheral face of needle gage eccentric wheel 800, sliding block 110 resets in the presence of torsion spring 140, engage again with ratchet 120,
And then ensure work feed eccentric wheel 300, eccentric wheel 500 and open between needle gage eccentric wheel 800 do not occur relative motion.
It is adjustable that although above-mentioned Sewing machines needle pitch modulating mechanism realizes needle gage, but its is complicated, and number of parts is more, and
Realize the adjustable major part of needle gage (work feed eccentric wheel 300, small eccentricity wheel 400, eccentric wheel 500 and drive needle gage eccentric wheel 800)
Be all that required precision is higher, baroque shaped piece, thus cause that the difficulty of processing of needle gage governor motion is big, processing cost compared with
Height, and then add the holistic cost of sewing machine.
The content of the invention
The shortcoming of prior art, is adjusted it is an object of the invention to provide a kind of simple needle gage of sewing machine in view of the above
Mechanism, the structure of its each part in simplifying the internal structure of an organization, reduction part difficulty of processing and processing cost.
To achieve the above object, the present invention provides a kind of simple needle gage governor motion of sewing machine, including main shaft, is fixed on master
Driving wheel and work feed connecting rod on axle, in addition to drive needle gage eccentric wheel and be located at driving wheel and open between needle gage eccentric wheel
Swinging block, the driving wheel, swinging block and drive needle gage eccentric wheel and mutually abut against, the needle gage eccentric wheel of opening is provided with being arranged on
Open needle gage connecting portion in swinging block, it is described open needle gage connecting portion be installed in rotation on main shaft periphery and with swinging block phase
Coordinate, the work feed connecting rod is installed in rotation on the periphery of swinging block, it is described drive needle gage eccentric wheel and main shaft be hinged center
O1, the cooperation center O2 and swinging block that open needle gage eccentric wheel and swinging block and work feed connecting rod to be hinged center O3 three eccentric
Set；When needle gage is adjusted, needle gage eccentric wheel and swinging block are opened in relative circumferential slip, the change for opening needle gage connecting portion of the swinging block
Cooperation center O2 position.
Further, in addition to it is fixed on the handwheel of spindle nose, fixed on the drive wheel and is eccentric in the transmission of main shaft
Pin and needle gage of opening with retainer lift the driving hole being engaged with trundle are offered in torsion axle, the swinging block, described
The periphery for driving needle gage eccentric wheel offers locking groove, it is described open needle gage lift turn round axle can be along the direction shifting closer or far from locking groove
It is dynamic；When needle gage is adjusted, open needle gage and lift the retainer turned round on axle and be located at and open in the locking groove of needle gage eccentric wheel periphery.
Preferably, the needle gage eccentric wheel of opening is towards offering stopper slot on the end face of swinging block, the stopper slot be one with
Arc grooves of the cooperation center O2 of needle gage eccentric wheel and swinging block for the center of circle is opened, the end of the trundle is located in stopper slot.
Further, it is described open needle gage lift turn round axle along open needle gage eccentric wheel radial-axial extension and can be inclined along needle gage is opened
The radial direction of heart wheel is moved back and forth, and retainer formation turns round axle close to the one end for driving needle gage eccentric wheel opening needle gage and lift.
Preferably, it is described open needle gage lift torsion axle on be fixed with spacing back-up ring and open needle gage lift torsion axle on be cased with back-moving spring,
The back-moving spring keeps away one end of needle gage eccentric wheel and spacing back-up ring is mutually fixed；When needle gage is adjusted, the other end of back-moving spring
Abutted against with the outer peripheral face of driving needle gage eccentric wheel, back-moving spring is in the state compressed.
Further, in addition to the locking member on main shaft and at least one be enclosed on saucer washer on main shaft,
The locking member is located at the side for opening needle gage eccentric wheel backswing block, and the saucer washer is located at locking member and opens needle gage bias
Between wheel and push against in driving needle gage eccentric wheel.
Preferably, installation site of the locking member on main shaft is adjustable.
Further, the locking member is adjusting nut, and main shaft is provided with one section of main shaft coordinated with locking nut screw thread
Thread segment.
Preferably, bearing is installed between the work feed connecting rod and swinging block.
Further, the accepting hole for housing and opening needle gage connecting portion, the hole wall bag of the accepting hole are offered in the swinging block
Two sections of be slidably matched plane and two sections of arc surfaces being located between the plane that is slidably matched are included, two sections are slidably matched plane to open
The cooperation center O2 of needle gage eccentric wheel and swinging block is symmetrical arranged, and the plane that is slidably matched is matched somebody with somebody with opening needle gage connecting portion and sliding
Close and for linear contact lay, the arc surface is not contacted with opening needle gage connecting portion.
The application also provides a kind of sewing machine, and the simple needle gage regulation machine of sewing machine as described above is provided with the sewing machine
Structure.
As described above, the simple needle gage governor motion of sewing machine of the present invention and sewing machine, have the advantages that：
Swinging block is set to circumferentially be slidably matched with the needle gage connecting portion of opening for driving needle gage eccentric wheel in the application, therefore adjusted
Markingoff pin away from when, make swinging block and drive needle gage eccentric wheel open that both needle gage connecting portions are relatively circumferential to be slided, you can needle gage is opened in adjustment
The cooperation center O2 of eccentric wheel and swinging block is hinged center O1 and swinging block with sending relative to drive needle gage eccentric wheel and main shaft
Cloth connecting rod is hinged center O3 position, thus adjust swinging block and work feed connecting rod to be hinged center O3 eccentric relative to needle gage is opened
The offset for being hinged center O1 (i.e. the centre of gyration of main shaft) of wheel and main shaft, final adjustment sewing machine is in sewing, and main shaft leads to
Overdrive wheel, swinging block and open needle gage eccentric wheel drive work feed connecting rod swing amplitude of fluctuation, realize needle gage adjust.Therefore, stitch
The needle gage Principles of Regulation of the simple needle gage governor motion of machine of threading are simple in the application from original " four link type " structure change
" crank rocking beam formula " structure, will so as to reduce the quantity for the vital part for realizing needle gage regulation, be particularly the quantity of shaped piece
Realize the neat appearance of the vital part of needle gage regulation, it is easy to integral molding, reach reduction difficulty of processing and processing cost
Purpose.
Brief description of the drawings
Fig. 1 is the structural representation of Sewing machines needle pitch modulating mechanism in the prior art.
Fig. 2 is Fig. 1 schematic diagram.
Fig. 3 is the structural representation of the simple needle gage governor motion of sewing machine in the application.
Fig. 4 is Fig. 3 sectional view.
Fig. 5 and Fig. 6 is explosive view of the simple needle gage governor motion of sewing machine under different visual angles in the application.
(wherein, Fig. 6 eliminates main shaft and handwheel.)
Fig. 7 is the schematic diagram of the simple needle gage governor motion of sewing machine in the application.
Fig. 8 is work feed connecting rod, swinging block, the installation diagram for driving needle gage eccentric wheel and main shaft in the application, and the figure is side view.
Fig. 9 is the structural representation of swinging block in Fig. 8.
Figure 10 is the structural representation that Fig. 8 drives needle gage eccentric wheel.
Component label instructions
1 main shaft
2 driving wheels
3 work feed connecting rods
4 drive needle gage eccentric wheel
41 open needle gage connecting portion
42 locking grooves
43 stopper slots
44 locating slots
45 through holes
5 swinging blocks
51 driving holes
52 accepting holes
53 are slidably matched plane
54 arc surfaces
6 handwheels
7 trundles
8, which open needle gage, lifts torsion axle
81 retainers
9 back-moving springs
10 locking members
11 saucer washers
12 bearings
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size that this specification accompanying drawing is painted etc., only to coordinate in disclosed in specification
Hold, so that those skilled in the art is understood with reading, be not limited to enforceable qualifications of the invention, therefore do not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influenceing the present invention
Under raw effect and the purpose that can reach, all should still it fall in the range of disclosed technology contents can be covered.Together
When, the term of cited such as " on ", " under " in this specification, "left", "right", " centre " and " one " is merely convenient to chat
State clearly, and be not used to limit enforceable scope of the invention, being altered or modified for its relativeness is changing technology without essence
Inside hold, when being also considered as enforceable category of the invention.
In following examples, the axial direction of main shaft 1 is defined as left and right directions, and by main shaft 1 close to the one of head of sewing machine
End is defined as left end, and main shaft 1 is defined as into right-hand member close to one end of sewing machine tail.
The application provides a kind of simple needle gage governor motion of sewing machine and is provided with the simple needle gage regulation machine of the sewing machine
The sewing machine of structure, the simple needle gage governor motion of sewing machine be used for adjust sewing machine sewing needle away from size.As shown in Figures 3 to 8,
The simple needle gage governor motion of sewing machine includes driving the main shaft 1 rotated by main motor, is fixed by screws on main shaft 1
Driving wheel 2, work feed connecting rod 3, drive needle gage eccentric wheel 4 and positioned at driving wheel 2 and open the swinging block 5 between needle gage eccentric wheel 4；
The driving wheel 2, swinging block 5 and drive needle gage eccentric wheel 4 and arrange and mutually abutted against successively from right to left, therefore the left side of driving wheel 2
Between face and the right flank of swinging block 5, the left surface of swinging block 5 and drive needle gage eccentric wheel 4 right flank between all have stiction；
It is described drive needle gage eccentric wheel 4 and be provided with to be arranged in swinging block 5 open needle gage connecting portion 41, this opens needle gage connecting portion 41 from opening pin
Right flank away from eccentric wheel 4 is prominent to the right and is circumferentially slidably matched with swinging block 5；It is described to open needle gage connecting portion 41 rotationally
Installed in the periphery of main shaft 1, it is installed in rotation on so that needle gage eccentric wheel 4 will be driven on main shaft 1, therefore opens the He of needle gage connecting portion 41
Main shaft 1 be hinged relation, with being hinged center O1, and it is main shaft 1 to open the center O1 that is hinged of needle gage connecting portion 41 and main shaft 1
The centre of gyration；The work feed connecting rod 3 is installed in rotation on the periphery of swinging block 5, therefore work feed connecting rod 3 is also with swinging block 5
The relation that is hinged, with being hinged center O3.Especially, as shown in Figure 7 and Figure 8, the hinge for driving needle gage eccentric wheel 4 and main shaft 1
Connect center O1, the cooperations center O2 and swinging block 5 that open needle gage eccentric wheel 4 and swinging block 5 and work feed connecting rod 3 is hinged center
O3 three's eccentric setting.Preferably, bearing 12 is installed between the work feed connecting rod 3 and swinging block 5, caused by the bearing 12
Work feed connecting rod 3 is installed in rotation on the periphery of swinging block 5.
Further, in schematic diagram Fig. 7 of the simple needle gage governor motion of sewing machine, point A correspondences drive needle gage eccentric wheel 4 and master
The centre of gyration for being hinged center O1 and main shaft 1 of axle 1, point B correspondences open the cooperation center of needle gage eccentric wheel 4 and swinging block 5
O2, point D correspondence swinging block 5 are hinged center O3 with work feed connecting rod 3.Open needle gage eccentric wheel 4 and the cooperation center O2's of swinging block 5
After position is determined, you can it is determined that drives needle gage eccentric wheel 4 and main shaft 1 is hinged center O1 being hinged with swinging block 5 and work feed connecting rod 3
The relative positions of center O3 between the two, also determine that sewing machine drives needle gage eccentric wheel 4 relative to main shaft 1 in an initial condition
Position angle and swinging block 5 are hinged offsets of the center O3 relative to the centre of gyration of main shaft 1 with work feed connecting rod 3, that is, determine
The distance between 2 points of Fig. 7 midpoints D position and AD L(AD).When sewing machine is sewed, main motor is rotated, and main shaft 1 drives
Driving wheel 2 is synchronously rotated, due to driving wheel 2, swinging block 5 and open needle gage eccentric wheel 4 mutually abutting, therefore by driving wheel 2 with
Stiction and swinging block 5 between swinging block 5 and the stiction opened between needle gage eccentric wheel 4 can drive swinging block 5 and
Drive needle gage eccentric wheel 4 synchronously to rotate with driving wheel 2 and main shaft 1, and center O3 is hinged by swinging block 5 and work feed connecting rod 3
Eccentric setting driving work feed between the centre of gyration of main shaft 1 (that drives needle gage connecting portion 41 and main shaft 1 is hinged center O1) connects
Bar 3 is swung, and then drives the cloth feeding mechanism work feed of sewing machine.When needle gage is adjusted, overcome swinging block 5 and drive needle gage eccentric wheel 4
Between maximum static friction force, make main shaft 1 drive swinging block 5 is relative to open the circumferential slip of needle gage connecting portion 41, and then change and open
The cooperations center O2 of needle gage eccentric wheel 4 and swinging block 5 is relative to opening being hinged center O1 and putting for needle gage eccentric wheel 4 and main shaft 1
The position for being hinged center O3 of motion block 5 and work feed connecting rod 3, namely change sewing machine open the phase of needle gage eccentric wheel 4 in an initial condition
Position angle and swinging block 5 for main shaft 1 and work feed connecting rod 3 to be hinged center O3 inclined relative to the centre of gyration of main shaft 1
Heart amount (i.e. the distance between 2 points of AD L in Fig. 7(AD)), final adjustment sewing machine main shaft 1 in sewing passes through driving wheel 2, swing
Block 5 and the amplitude of fluctuation for opening the swing of the drive work feed of needle gage eccentric wheel 4 connecting rod 3, change the cloth feed amount of cloth feeding mechanism in sewing machine, real
Existing needle gage regulation.
As shown in the above：The application ties the needle gage Principles of Regulation of needle gage governor motion from original " four link type "
Structure, which becomes, turns to simple " crank rocking beam formula " structure in the application, so as to reduce the number for the vital part for realizing needle gage regulation
The quantity of amount, particularly shaped piece, will realize the neat appearance of the vital part of needle gage regulation, it is easy to integral molding, reaches
Reduce the purpose of difficulty of processing and processing cost.
Further, as shown in figure 5, the simple needle gage governor motion of sewing machine also includes the handwheel for being fixed on the left end of main shaft 1
6th, be fixed on driving wheel 2 and be eccentric in the trundle 7 of main shaft 1 and with retainer 81 open needle gage lift torsion axle 8, it is described
The driving hole 51 being engaged with trundle 7 is offered in swinging block 5, the periphery for driving needle gage eccentric wheel 4 offers locking groove
42, it is described open needle gage lift torsion axle 8 can be moved along the direction closer or far from locking groove 42；Driving wheel 2 and trundle 7 constitute bias
Wheel.When sewing machine is sewed, open needle gage and lift locking groove 42 of the retainer 81 with opening on needle gage eccentric wheel 4 turned round on axle 8 and be separated, therefore
Driving needle gage eccentric wheel 4 can rotate with main shaft 1；When needle gage is adjusted, main motor stops operating, and presses inward against out needle gage and lifts torsion axle
8, then open needle gage and lift and turn round axle 8 and moved along the radial direction of needle gage eccentric wheel 4 is opened to the direction close to locking groove 42, rotate handwheel 6, then lead
Axle 1, driving wheel 2, swinging block 5 and the synchronous axial system of needle gage eccentric wheel 4 is opened, until retainer 81 is located in locking groove 42；It is rotated further by
Handwheel 6, so that synchronously rotating spindle 1 and driving wheel 2, driving wheel 2 drives the synchronous axial system of swinging block 5 by trundle 7, but is opened
Needle gage eccentric wheel 4 is opening remains stationary under needle gage lifts the limitation for turning round axle 8, and then realizes main shaft 1, driving wheel 2 and the three of swinging block 5
It is synchronously relative to open the circumferential slip that needle gage connecting portion 41 is opened in needle gage eccentric wheel 4, in other words so that open the phase of needle gage eccentric wheel 4
Turn over certain angle to main shaft 1, change open the cooperation center O2 of needle gage eccentric wheel 4 and swinging block 5 with open needle gage eccentric wheel 4 with
The relative position being hinged between the O1 of center of main shaft 1, namely increase or reduce the distance between 2 points of AD L in Fig. 7(AD), it is right
Increased or decrease the amplitude of fluctuation of work feed connecting rod 3, the cloth feed amount of cloth feeding mechanism and needle gage size with answering.
As shown in Figure 7 and Figure 8, the cooperation center O2 of needle gage eccentric wheel 4 and swinging block 5 is opened relative to driving needle gage eccentric wheel 4
The offset for being hinged center O1 with main shaft 1 is the distance between 2 points of AB L(AB), open matching somebody with somebody for needle gage eccentric wheel 4 and swinging block 5
Conjunction center O2 is the distance between 2 points of EF L relative to the offset for being hinged center O3 of swinging block 5 and work feed connecting rod 3(EF), then
Swinging block 5 is hinged maximum eccentricity amount Ls of the center O3 relative to the centre of gyration A points of main shaft 1 with work feed connecting rod 3(AD)max=L(AB)
+L(EF), correspondence sewing machine there is maximum needle gage, swinging block 5 is hinged revolutions of the center O3 relative to main shaft 1 with work feed connecting rod 3
The minimum eccentricity L of center A points(AD)min=| L(AB)-L(EF)|, correspondence sewing machine there is minimum needle gage.
Preferably, as shown in Figure 10, the needle gage eccentric wheel 4 of opening is towards offering stopper slot on the right side of swinging block 5
43, the stopper slot 43 is one to open the needle gage eccentric wheel 4 and cooperation center O2 of swinging block 5 as the arc groove in the center of circle, the transmission
The left end of pin 7 is located in stopper slot 43, and the rotational angle of trundle 7 is limited by stopper slot 43, namely is limited in needle gage regulation
When, by the drive shaft 1 of handwheel 6, the relative rotational angle for driving needle gage eccentric wheel 4 of driving wheel 2 and swinging block 5, therefore stopper slot 43
Two ends correspond to the maximum needle gage point of adjustment and minimum needle gage point of adjustment of sewing machine respectively.Described open opens up in needle gage eccentric wheel 4
There is the through hole 45 being engaged with main shaft 1, the through hole 45 is axially through opening needle gage connecting portion 41 and eccentric with opening needle gage connecting portion 41
Set.
In addition, as shown in Figure 5 and Figure 6, it is described open needle gage and lift turn round axle 8 and extend, simultaneously along the radial-axial for driving needle gage eccentric wheel 4
It can be moved back and forth along the radial direction for driving needle gage eccentric wheel 4, the retainer 81 forms opening needle gage that to lift torsion axle 8 eccentric close to needle gage is opened
The head of wheel 4.It is described open needle gage lift torsion axle 8 on be fixed with spacing back-up ring and open needle gage lift torsion axle 8 on be cased with back-moving spring 9, should
Back-moving spring 9 keeps away the outer end of needle gage eccentric wheel 4 and spacing back-up ring is mutually fixed.When needle gage is adjusted, torsion axle is lifted by needle gage is pressed off
8, needle gage is lifted torsion axle 8 and be stuck in out in the locking groove 42 of needle gage eccentric wheel 4, therefore the inner of back-moving spring 9 is eccentric with opening needle gage
The outer peripheral face of wheel 4 is abutted against, and back-moving spring 9 is in the state compressed；After needle gage regulation terminates, open needle gage and lift torsion axle 8,
Then resetted in the presence of back-moving spring 9 so that opening needle gage and lifting torsion axle 8.
Further, as shown in Figure 5 and Figure 6, the simple needle gage governor motion of sewing machine also includes the lock being arranged on main shaft 1
Tight part 10 and at least one be enclosed on saucer washer 11 on main shaft 1, the locking member 10, which is located at, drives needle gage eccentric wheel 4 dorsad
The left end side of swinging block 5, the saucer washer 11 is located at locking member 10 and opens between needle gage eccentric wheel 4 and push against in opening needle gage
Eccentric wheel 4, so split needle gage eccentric wheel 4 apply an axial pre tightening force towards swinging block 5 so that open needle gage eccentric wheel 4,
Swinging block 5 and driving wheel 2 are mutually pushed against.In addition, the needle gage eccentric wheel 4 of opening is towards offering on the left side of saucer washer 11
In one locating slot 44, multiple saucer washers 11, the saucer washer 11 for being located at least in the rightmost side is placed in out the positioning of needle gage eccentric wheel 4
In groove 44.
Preferably, installation site of the locking member 10 on main shaft 1 is adjustable, so as to adjust 11 pairs of swings of saucer washer
The axial pre tightening force that block 5 applies, between regulation driving wheel 2 and swinging block 5 and swinging block 5 and is opened between needle gage eccentric wheel 4
Stiction.In the present embodiment, the locking member 10 is adjusting nut, and main shaft 1 coordinates provided with one section with locking nut screw thread
Spindle thread section, rotating adjusting nut is right position of the adjustable adjusting nut in spindle thread section.
Further, should as shown in figure 9, offering the accepting hole 52 for housing and opening needle gage connecting portion 41 in the swinging block 5
The hole wall of accepting hole 52 includes two sections of be slidably matched plane 53 and two sections of arc surfaces being located between the plane 53 that is slidably matched
54, two sections of cooperation center O2 for being slidably matched plane 53 to drive needle gage eccentric wheel 4 and swinging block 5 are symmetrical arranged, and the slip is matched somebody with somebody
Close plane 53 and open needle gage connecting portion 41 and be slidably matched and for linear contact lay, the arc surface 54 with opening needle gage connecting portion 41 not
Contact, without matching relationship, when reducing needle gage regulation, circumferentially rotating swinging block 5, swinging block 5 and open between needle gage connecting portion 41
Frictional force, plays labour-saving effect.
The operation principle for the simple needle gage governor motion of sewing machine that the application is related to is as follows：
When needing the needle gage to adjust, sewing machine main motor is stopped operating, and needle gage is pinned out with hand and lifts the afterbody for turning round axle 8, is rotated
Handwheel 6, then main shaft 1 drives driving wheel 2, swinging block 5 and opens the synchronous axial system of needle gage eccentric wheel 4, until opening needle gage lifts torsion axle 8 head
Retainer 81 be stuck in out in the locking groove 42 of needle gage eccentric wheel 4；Now, handwheel 6 is rotated forward or backwards, then opens needle gage eccentric
Take turns 4 and opening remains stationary under needle gage lifts the limitation for turning round axle 8, main shaft 1 only drives driving wheel 2 and the synchronous axial system of swinging block 5, made
Swinging block 5 it is relative drive needle gage eccentric wheel 4 open that needle gage connecting portion 41 is circumferential to be slided, namely to drive needle gage eccentric wheel 4 relative
Rotated in main shaft 1, so that increased or decrease swinging block 5 and work feed connecting rod 3 is hinged the centres of gyration of the center O3 relative to main shaft 1
The offset of A points, correspondingly increaseds or decreases the amplitude of fluctuation, cloth feed amount and needle gage size of work feed connecting rod 3.Needle gage regulation terminates
Afterwards, open needle gage lift torsion axle 8, and open needle gage lift torsion axle 8 resetted in the presence of back-moving spring 9.Note swinging block 5 is with opening needle gage
Maximum static friction torque between eccentric wheel 4 is M1, manual metering needle away from when the torque that acts on handwheel 6 of hand be M2, sewing
The torque that load is acted on swinging block 5 by work feed connecting rod 3 when machine is operated is M3, then when needle gage is adjusted：M2>M1；Sewing machine
During operating：M1>M3.
In summary, the simple needle gage governor motion of sewing machine that the application is related to has the advantages that：
1st, simplify the principle of needle gage governor motion, from original " four link type " structure be reduced to the application in it is relatively simple
Single " crank rocking beam formula " structure, and then the number of the vital part of needle gage regulation and the number of different in nature part are realized in reduction,
So that vital part neat appearance, it is easy to integral molding, difficulty of processing and processing cost are reduced；
2nd, apply axial pre tightening force by the split needle gage eccentric wheel 4 of saucer washer 11 to lock so that structure is simpler, just
In assembling, production cost is greatly reduced.
So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (11)
1. a kind of simple needle gage governor motion of sewing machine, including main shaft (1), the driving wheel (2) that is fixed on main shaft (1) and
Work feed connecting rod (3), it is characterised in that：Also include driving needle gage eccentric wheel (4) and positioned at driving wheel (2) and drive needle gage eccentric wheel
(4) swinging block (5) between, the driving wheel (2), swinging block (5) and drives needle gage eccentric wheel (4) and mutually abuts against, described to open pin
It is provided with to be arranged in swinging block (5) away from eccentric wheel (4) and opens needle gage connecting portion (41), the needle gage connecting portion (41) of opening can turns
The periphery of main shaft (1) is arranged on dynamicly and is engaged with swinging block (5), and the work feed connecting rod (3) is installed in rotation on swing
The periphery of block (5), it is described to open being hinged center O1, opening needle gage eccentric wheel (4) and swinging block for needle gage eccentric wheel (4) and main shaft (1)
(5) cooperation center O2 and swinging block (5) is hinged center O3 three's eccentric setting with work feed connecting rod (3)；Needle gage is adjusted
When, needle gage eccentric wheel (4) and swinging block (5) are driven in relative circumferential slip, the change for opening needle gage connecting portion (41) of the swinging block (5)
Cooperation center O2 position.
2. the simple needle gage governor motion of sewing machine according to claim 1, it is characterised in that：Also include being fixed on main shaft
(1) handwheel (6) of end, the trundle (7) that is fixed on driving wheel (2) and is eccentric in main shaft (1) and with retainer
(81) needle gage of opening lifts torsion axle (8), offers the driving hole (51) being engaged with trundle (7) in the swinging block (5), described
The periphery for driving needle gage eccentric wheel (4) offers locking groove (42), it is described open needle gage lift torsion axle (8) can be along closer or far from locking groove
(42) direction movement；When needle gage is adjusted, open needle gage and lift the retainer (81) turned round on axle (8) and be located at and drive needle gage eccentric wheel (4) outside
In the locking groove (42) in week.
3. the simple needle gage governor motion of sewing machine according to claim 2, it is characterised in that：It is described to drive needle gage eccentric wheel
(4) towards offering stopper slot (43) on the end face of swinging block (5), the stopper slot (43) be one with open needle gage eccentric wheel (4) with
The cooperation center O2 of swinging block (5) is the arc groove in the center of circle, and the end of the trundle (7) is located in stopper slot (43).
4. the simple needle gage governor motion of sewing machine according to claim 2, it is characterised in that：The needle gage of opening lifts torsion axle
(8) extend and can be moved back and forth along the radial direction for driving needle gage eccentric wheel (4) along the radial-axial for driving needle gage eccentric wheel (4), it is described to stop
Dynamic portion (81) form and turn round axle (8) close to the one end for opening needle gage eccentric wheel (4) opening needle gage and lift.
5. the simple needle gage governor motion of sewing machine according to claim 2 or 4, it is characterised in that：The needle gage of opening lifts torsion
Spacing back-up ring is fixed with axle (8) and opens needle gage and lifts and is cased with back-moving spring (9) in torsion axle (8), and the back-moving spring (9) is kept away
One end of needle gage eccentric wheel (4) is mutually fixed with spacing back-up ring；When needle gage is adjusted, the other end of back-moving spring (9) is inclined with opening needle gage
The outer peripheral face of heart wheel (4) is abutted against, and back-moving spring (9) is in the state compressed.
6. the simple needle gage governor motion of sewing machine according to claim 1, it is characterised in that：Also include being arranged on main shaft
(1) locking member (10) on and at least one be enclosed on saucer washer (11) on main shaft (1), the locking member (10) is located at
The side of needle gage eccentric wheel (4) backswing block (5) is opened, the saucer washer (11) is located at locking member (10) and opens needle gage bias
Between wheel (4) and push against in driving needle gage eccentric wheel (4).
7. the simple needle gage governor motion of sewing machine according to claim 6, it is characterised in that：The locking member (10) is in master
Installation site on axle (1) is adjustable.
8. the simple needle gage governor motion of sewing machine according to claim 7, it is characterised in that：The locking member (10) is tune
Nut is saved, main shaft (1) is provided with the one section of spindle thread coordinated with locking nut screw thread section.
9. the simple needle gage governor motion of sewing machine according to claim 1, it is characterised in that：The work feed connecting rod (3) and
Bearing (12) is installed between swinging block (5).
10. the simple needle gage governor motion of sewing machine according to claim 1, it is characterised in that：Opened in the swinging block (5)
The accepting hole (52) of needle gage connecting portion (41) is opened provided with collecting, the hole wall of the accepting hole (52) includes two sections of planes that are slidably matched
(53) and two sections are located at the arc surfaces (54) being slidably matched between plane (53), two sections of planes that are slidably matched (53) are to open pin
Cooperation center O2 away from eccentric wheel (4) and swinging block (5) is symmetrical arranged, and the plane that is slidably matched (53) is with opening needle gage connecting portion
(41) it is slidably matched and for linear contact lay, the arc surface (54) does not contact with opening needle gage connecting portion (41).
11. a kind of sewing machine, it is characterised in that：Sewing machine letter described in claim any one of 1-10 is installed in the sewing machine
Easy needle gage governor motion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710296544.0A CN107012597B (en) | 2017-04-28 | 2017-04-28 | A kind of simple needle gage regulating mechanism of sewing machine and sewing machine |
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|---|---|---|---|
| CN201710296544.0A CN107012597B (en) | 2017-04-28 | 2017-04-28 | A kind of simple needle gage regulating mechanism of sewing machine and sewing machine |
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| CN107012597A true CN107012597A (en) | 2017-08-04 |
| CN107012597B CN107012597B (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710296544.0A Active CN107012597B (en) | 2017-04-28 | 2017-04-28 | A kind of simple needle gage regulating mechanism of sewing machine and sewing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594208A (en) * | 2019-01-14 | 2019-04-09 | 安徽杰羽制鞋机械科技有限公司 | A kind of needle gage of sewing machine adjusts and falls automatically feeding structure |
| CN111663254A (en) * | 2019-03-05 | 2020-09-15 | 杰克缝纫机股份有限公司 | Sewing machine and needle pitch adjusting structure thereof |
| CN112853633A (en) * | 2019-11-28 | 2021-05-28 | 杰克缝纫机股份有限公司 | Feed lifting mechanism with adjustable feed lifting height and flat seaming machine |
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| IT1151404B (en) * | 1982-05-17 | 1986-12-17 | Rockwell Rimoldi Spa | ECCENTRIC STITCH REGULATOR ADJUSTABLE IN SEWING MACHINES |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594208A (en) * | 2019-01-14 | 2019-04-09 | 安徽杰羽制鞋机械科技有限公司 | A kind of needle gage of sewing machine adjusts and falls automatically feeding structure |
| CN111663254A (en) * | 2019-03-05 | 2020-09-15 | 杰克缝纫机股份有限公司 | Sewing machine and needle pitch adjusting structure thereof |
| CN112853633A (en) * | 2019-11-28 | 2021-05-28 | 杰克缝纫机股份有限公司 | Feed lifting mechanism with adjustable feed lifting height and flat seaming machine |
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| Publication number | Publication date |
|---|---|
| CN107012597B (en) | 2019-10-25 |
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Address after: 318010 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. |
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