CN107245818B - A kind of simple take-up regulating mechanism of sewing machine and sewing machine - Google Patents
A kind of simple take-up regulating mechanism of sewing machine and sewing machine Download PDFInfo
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- CN107245818B CN107245818B CN201710456864.8A CN201710456864A CN107245818B CN 107245818 B CN107245818 B CN 107245818B CN 201710456864 A CN201710456864 A CN 201710456864A CN 107245818 B CN107245818 B CN 107245818B
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- eccentric wheel
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- feed tip
- eccentric
- connecting rod
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B49/00—Take-up devices, e.g. levers, for the needle thread
- D05B49/02—Take-up devices, e.g. levers, for the needle thread operated by cams or linkages
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of simple take-up regulating mechanism of sewing machine, including upper axis, line-choosing connecting rod, adjust eccentric wheel and take-up eccentric wheel, eccentric wheel is adjusted to be mounted on axis and there is adjusting eccentric part, take-up eccentric wheel is installed in rotation on the periphery for adjusting eccentric part, one end of line-choosing connecting rod is installed in rotation on the periphery of take-up eccentric wheel, the centre of gyration O1 of upper axis, adjusts the cooperation center O2 of eccentric part and take-up eccentric wheel and cooperation center O3 three's eccentric setting of take-up eccentric wheel and line-choosing connecting rod；When sewing machine is sewed, upper axis and adjusting eccentric wheel are opposing stationary；When take-up amount is adjusted, upper axis and the take-up eccentricity L cooperated between the center O3 and centre of gyration O1 of upper axis for adjusting eccentric wheel relative rotation, changing take-up eccentric wheel line-choosing connecting rod, the amplitude of fluctuation that axis driving line-choosing connecting rod is swung in adjusting, realize the adjusting of sewing machine take-up amount, meet requirement of the sewing of different-thickness to take-up amount size, sewing quality is significantly increased.
Description
Technical field
The present invention relates to a kind of garment sewing equipment, more particularly to a kind of simple take-up regulating mechanism of sewing machine and sewing
Machine.
Background technique
Currently, the take-up amount of the Yarn taking-up mechanism configured in flat seaming machine is a fixed value, involved by the flat seaming machine of different brands
And take-up amount size may be different, but for the flat seaming machine of same brand and same model, take-up amount is constant
It is constant.But in order to form relatively beautiful stitching and meet the sewing requirement of high quality, the sewing of different-thickness is needed pair
Different size of take-up amount is answered, but the flat seaming machine of the take-up amount with fixed value is unable to satisfy above-mentioned requirements currently on the market, no
Has preferable sewing adaptability, so that influence forms the aesthetics of stitching, so that sewing quality is had a greatly reduced quality.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of simple take-ups of sewing machine to adjust
Mechanism realizes the adjustable of take-up amount.
To achieve the above object, the present invention provides a kind of simple take-up regulating mechanism of sewing machine, including rotatably upper axis,
It drives the line-choosing connecting rod of Yarn taking-up mechanism movement, adjust eccentric wheel and take-up eccentric wheel, the adjusting eccentric wheel is mounted on axis,
And adjust eccentric wheel and be equipped with axially projecting adjusting eccentric part towards one end of take-up eccentric wheel, the take-up eccentric wheel can be rotated
Ground is mounted on the periphery for adjusting eccentric part, and the line-choosing connecting rod is installed in rotation on take-up bias far from one end of Yarn taking-up mechanism
The periphery of wheel, the centre of gyration O1 of the upper axis, the cooperation center O2 for adjusting eccentric part and take-up eccentric wheel and take-up are eccentric
Cooperation center O3 three's eccentric setting of wheel and line-choosing connecting rod；When sewing machine is sewed, the upper axis and adjusting eccentric wheel are opposite quiet
Only；When take-up amount is adjusted, the upper axis and adjusting eccentric wheel relatively rotate, change in the cooperation of take-up eccentric wheel and line-choosing connecting rod
Take-up eccentricity L between heart O3 and the centre of gyration O1 of upper axis.
Further, further include the feed tip eccentric wheel being fixed on axis and to be installed in rotation on feed tip inclined for one end
The feed tip connecting rod of heart wheel periphery, the centre of gyration O1 and feed tip eccentric wheel of the upper axis and the cooperation center O4 of feed tip connecting rod are eccentric
Setting, the adjusting eccentric wheel, take-up eccentric wheel and feed tip eccentric wheel three abutting or adjusting eccentric wheel and feed tip eccentric wheel are supported
Tightly, make adjusting eccentric wheel and feed tip eccentric wheel that there is axial pre tightening force between the two, the feed tip connecting rod is for driving feed tip machine
Structure movement.
Preferably, the periphery for adjusting eccentric wheel offers detent slot.
Further, the feed tip eccentric wheel is located at take-up eccentric wheel at the one end for adjusting eccentric wheel, and feed tip is inclined
Heart wheel has the feed tip eccentric part matched with feed tip connecting rod and the feed tip ontology between feed tip connecting rod and line-choosing connecting rod
Portion offers sliding slot on the end face of the feed tip body part towards take-up eccentric wheel, and the end of the take-up eccentric wheel, which is located at, to be slided
In slot and can extending direction sliding along the chute, and the outer peripheral surface of take-up eccentric wheel is in contact with the cell wall of sliding slot.
Further, further include the locking nut and multiple saucer washers covered on upper axis, there is one section on the upper axis
The upper axis spiro rod section matched with locking nut, the locking nut, which is located at, adjusts eccentric wheel backwards to the side of take-up eccentric wheel,
Multiple saucer washers, which are located at, to be adjusted between eccentric wheel and locking nut, makes to adjust between eccentric wheel and feed tip eccentric wheel with axial
Pretightning force.
It preferably, further include the eccentric cover board covered on upper axis, the feed tip connecting rod has to be connected with feed tip eccentric wheel
Feed tip interconnecting piece, the bias cover board is fixed on feed tip eccentric wheel on the end face of take-up eccentric wheel, and eccentric cover board covers
Lid feed tip eccentric wheel and feed tip interconnecting piece.
Further, the end of the upper axis is fixed with handwheel, which is located at the outside of sewing machine case.
It further, further include the spacer pin for being parallel to axis, the adjusting end face of the eccentric wheel towards take-up eccentric wheel
On offer limiting slot, one end of the spacer pin is fixed in take-up eccentric wheel, the other end is slidably mounted on limiting slot
In.
Further, the Yarn taking-up mechanism includes crossing line seat axis, the looper being fixed on line seat axis perpendicular to upper axis
Crank, the line seat excessively for being fixed on line seat shaft end portion and the line plate excessively being mounted on line seat and excessively line plate pressing plate, it is described curved
Needle crank is equipped with ball head far from the one end for crossing line seat axis, and the other end of the line-choosing connecting rod offers the receiving of accommodating ball head
Hole, the ball head are to match with accepting hole.
The present invention also provides a kind of sewing machine, sewing machine as described above simple take-up is installed in the sewing machine and is adjusted
Mechanism.
As described above, the simple take-up regulating mechanism of sewing machine of the present invention and sewing machine, have the advantages that
Take-up eccentricity L is adjusted in the application, so that the amplitude of fluctuation that upper axis driving line-choosing connecting rod is swung is adjusted, it is final real
The adjusting of existing sewing machine take-up amount, can satisfy requirement of the sewing of different-thickness to take-up amount size, advantageously forms high-quality
The stitching of amount and beauty, so that sewing quality be significantly increased.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the simple take-up regulating mechanism of sewing machine in the application.
Fig. 2 and Fig. 3 is that Fig. 1 omits the structural schematic diagram after casing.
Fig. 4 is the explosive view of Fig. 3.
Fig. 5 is cross-sectional view of the Fig. 3 along spacer pin radial direction.
Fig. 6 and Fig. 7 is the structural schematic diagram that eccentric wheel is adjusted in the application.
Fig. 8 is the structural schematic diagram of feed tip eccentric wheel in the application.
Fig. 9 is the structural schematic diagram of upper axis in the application.
Figure 10 is main shaft in the application, the fiting relation figure for adjusting eccentric wheel, take-up eccentric wheel and line-choosing connecting rod.
Figure 11 is the fiting relation figure of main shaft, feed tip eccentric wheel and feed tip connecting rod in the application.
Figure 12 is the mechanism principle figure of the simple take-up regulating mechanism of sewing machine in application.
Component label instructions
1 casing
Axis on 2
Axis spiro rod section on 21
3 line-choosing connecting rods
31 accepting holes
4 adjust eccentric wheel
41 adjust eccentric part
42 limiting slots
43 detent slots
44 grooves
5 take-up eccentric wheels
6 feed tip eccentric wheels
61 feed tip eccentric parts
62 feed tip body parts
63 sliding slots
7 feed tip connecting rods
71 feed tip interconnecting pieces
8 locking nuts
9 eccentric cover boards
10 handwheels
11 spacer pins
12 cross line seat axis
13 curved needle cranks
131 ball heads
14 cross line seat
15 saucer washers
Specific 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 is understood other advantages and efficacy of the present invention easily.
It should be clear that structure, ratio, size etc. that this specification attached drawing is drawn, only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the invention enforceable qualifications, therefore does 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 influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.Together
When, cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be merely convenient to chat
It states clearly, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
In following embodiment, all directions are defined as follows: the axial direction of upper axis 2 being defined as left and right directions, and upper axis 2 is close
In one end of head of sewing machine be left direction, upper axis 2 close to one end of sewing machine tail be right end.
The application provides a kind of simple take-up regulating mechanism of sewing machine, especially suitable for flat seaming machine, in a certain range
The interior take-up amount size for adjusting flat seaming machine.As shown in Figures 1 to 5, the simple take-up regulating mechanism of sewing machine includes upper axis 2, driving
Line-choosing connecting rod 3, adjusting eccentric wheel 4 and take-up eccentric wheel 5, the upper axis 2 that Yarn taking-up mechanism acts are installed in rotation on sewing
In machine casing 1, the adjusting eccentric wheel 4 is mounted on axis 2 and adjusts on left side of the eccentric wheel 4 towards take-up eccentric wheel 5
Equipped with adjusting eccentric part 41 axially projecting to the left, the take-up eccentric wheel 5, which is installed in rotation on, adjusts the outer of eccentric part 41
Week, the line-choosing connecting rod 3 are installed in rotation on the periphery of take-up eccentric wheel 5 far from the upper end of Yarn taking-up mechanism.Such as Figure 10 and figure
Shown in 12, the centre of gyration O1 of the upper axis 2, eccentric part 41 is adjusted and the cooperation center O2 and take-up of take-up eccentric wheel 5 are inclined
Cooperation center O3 three's eccentric setting of heart wheel 5 and line-choosing connecting rod 3.When sewing machine is sewed, upper axis 2 is opposite with adjusting eccentric wheel 4
It is static, therefore upper axis 2 drives adjusting eccentric wheel 4 to rotate synchronously, and drives line-choosing connecting rod 3 to swing by take-up eccentric wheel 5, take-up
Take-up eccentricity L between eccentric wheel 5 and the cooperation center O3 and centre of gyration O1 of upper axis 2 of line-choosing connecting rod 3 determines upper 2 band of axis
The amplitude of fluctuation that dynamic line-choosing connecting rod 3 is swung.When take-up amount is adjusted, upper axis 2 is relatively rotated with eccentric wheel 4 is adjusted, and change adjusts inclined
The position of the cooperation center O2 of center portion 41 and take-up eccentric wheel 5, namely change the centre of gyration O1 of upper axis 2, adjust eccentric part 41
With the opposite position of the cooperation center O3 three of the cooperation center O2 and take-up eccentric wheel 5 and line-choosing connecting rod 3 of take-up eccentric wheel 5
It sets, so that the take-up changed between take-up eccentric wheel 5 and the cooperation center O3 and centre of gyration O1 of upper axis 2 of line-choosing connecting rod 3 is inclined
Heart amount L, and then the amplitude of fluctuation of the upper driving of axis 2 swing of line-choosing connecting rod 3 when sewing machine sewing is adjusted, it is final to realize sewing machine take-up
The adjusting of amount can satisfy requirement of the sewing of different-thickness to take-up amount size, advantageously form the line of high quality and beauty
Mark, so that sewing quality be significantly increased.
Further, the simple take-up regulating mechanism of sewing machine further includes the feed tip bias being fixed by screws on axis 2
Wheel 6 and one end are installed in rotation on the feed tip connecting rod 7 of 6 periphery of feed tip eccentric wheel, and as shown in figure 11, the upper axis 2 returns
Turn the cooperation center O4 eccentric setting of center O1 and feed tip eccentric wheel 6 and feed tip connecting rod 7, and it is inclined with feed tip to adjust eccentric wheel 4
Heart wheel 6 pushes against, has axial pre tightening force between the two, by the axial pre tightening force adjust eccentric wheel 4 and feed tip eccentric wheel 6 it
Between generate stiction, adjust eccentric wheel 4 and rotatably cooperate with upper axis 2.When normal sewing, upper axis 2 is rotated, and drives feed tip inclined
Heart wheel 6 rotates synchronously, and driving feed tip connecting rod 7 is swung, and then drives the feed tip mechanism action in sewing machine；Meanwhile feed tip is inclined
Heart wheel 6 is driven by the stiction adjusted between eccentric wheel 4 and feed tip eccentric wheel 6 and adjusts the synchronous rotation of eccentric wheel 4, and is passed through
Take-up eccentric wheel 5 and line-choosing connecting rod 3 drive the Yarn taking-up mechanism movement in sewing machine therefore normally when sewing, to pass through axial pretightening
Power make axis 2 and adjust eccentric wheel 4 it is opposing stationary, both rotate synchronously.In addition, the feed tip mechanism is the prior art, tool
Body structure can refer to by Jack's sewing machine limited liability company platform-type straight drive flat seaming machine produced, model JK-8569ADI,
Therefore not reinflated narration herein.
The take-up in feed tip eccentric wheel 6 and take-up regulating mechanism in order to meet different sewing requirements, in feed tip mechanism
Angle between eccentric wheel 5 is adjustable in a certain range.Specifically, as shown in Figures 1 to 5, feed tip eccentric wheel 6, take-up are inclined
Heart wheel 5 and adjusting eccentric wheel 4 are successively arranged from left to right；As shown in figure 8, the left end of feed tip eccentric wheel 6 has and feed tip connecting rod 7
The feed tip eccentric part 61 matched, the right end of feed tip eccentric wheel 6 have the feed tip between feed tip connecting rod 7 and line-choosing connecting rod 3
Body part 62, feed tip body part 62 offer sliding slot 63, the left end of take-up eccentric wheel 5 on the right side towards take-up eccentric wheel 5
Portion be located in sliding slot 63 and can along the chute 63 extending direction sliding, and the cell wall of the outer peripheral surface of take-up eccentric wheel 5 and sliding slot 63
Left side and groove bottom of the feed tip eccentric wheel 6 at 63 left end of sliding slot for line contact, take-up eccentric wheel 5 abut against.Upper axis 2
Right end is fixed with handwheel 10, which is located at the outside of sewing machine case 1.The periphery for adjusting eccentric wheel 4 offers detent slot
43.Furthermore make to adjust the specific structure that axial pre tightening force is generated between eccentric wheel 4 and feed tip eccentric wheel 6 are as follows: such as Fig. 3, Fig. 4 and
Shown in Fig. 9, the simple take-up regulating mechanism of sewing machine further includes the locking nut 8 and multiple saucer washers 15 covered on upper axis 2, institute
Stating has one section of upper axis spiro rod section 21 matched with locking nut 8 on axis 2, the periphery of upper axis spiro rod section 21 is equipped with and locking
The external screw thread that nut 8 is threadedly engaged, locking nut 8, which is located at, adjusts eccentric wheel 4 backwards to the right side of take-up eccentric wheel 5, multiple dishes
Washer 15, which is located at, to be adjusted between eccentric wheel 4 and locking nut 8；It is eccentric that locking nut 8 makes multiple saucer washers 15 be pressed in adjusting
Wheel 4 to make to adjust eccentric wheel 4 and the abutting of feed tip eccentric wheel 6, or supports adjusting eccentric wheel 4 and the right end of take-up eccentric wheel 5
Tightly and the left end of feed tip eccentric wheel 6 and take-up eccentric wheel 5 pushes against (i.e. adjusting eccentric wheel 4, take-up eccentric wheel 5 and feed tip eccentric wheel
6 threes push against) so that adjusting eccentric wheel 4 axial pre tightening force is generated between the two, with static friction with feed tip eccentric wheel 6
Power.In addition, left-right position of the locking nut 8 on upper axis spiro rod section 21 is adjustable, it is inclined so as to adjust 15 pairs of adjustings of saucer washer
Axial pre tightening force and maximum between the size and adjusting eccentric wheel 4 and feed tip eccentric wheel 6 of the axial pre tightening force that heart wheel 4 applies
The size of stiction.As shown in fig. 6, offering the groove 44 of receiving saucer washer 15 on the right side of adjusting eccentric wheel 4.
Upper axis 2, feed tip eccentric wheel 6, take-up eccentric wheel 5 and adjusting eccentric wheel 4, which are constituted, realizes that sewing machine eccentricity is adjustable
" slider-crank mechanism ", mechanism principle figure is as shown in figure 12, Tu12Zhong, and the centre of gyration O1 of axis 2 in point A correspondence, point B are corresponding
The cooperation center O2 of eccentric part 41 and take-up eccentric wheel 5 is adjusted, point D corresponds to the cooperation center of take-up eccentric wheel 5 Yu line-choosing connecting rod 3
O3, point C correspond to the cooperation center O4 of feed tip eccentric wheel 6 Yu feed tip connecting rod 7, therefore the distance between AD two o'clock corresponds to take-up eccentricity
L.When take-up amount is adjusted, do not need to open the upper cover of flat seaming machine casing 1, it is only necessary to wear using tools such as screwdriver, long axis
It is inserted into the detent slot 43 adjusted on eccentric wheel 4 after crossing the through-hole on casing 1 on lid, limitation adjusts the rotation of eccentric wheel 4, casing
Through-hole on 1 is oppositely arranged and is connected to the detent slot 43 adjusted on eccentric wheel 4；Manual rotation's handwheel 10, hand acts on handwheel
Torque M2 on 10 is greater than the maximum static friction torque M1 adjusted between eccentric wheel 4 and feed tip eccentric wheel 6, then handwheel 10, which drives, feeds
Needle eccentric wheel 6 rotates synchronously, and so that adjusting eccentric wheel 4 is turned over certain angle relative to upper axis 2, and then enable and adjust eccentric wheel 4
Position angle relative to feed tip eccentric wheel 6 changes, and since the left end of take-up eccentric wheel 5 is always in feed tip eccentric wheel 6
Sliding slot 63 in slide, thus may make take-up eccentric wheel 5 (i.e. BD bar) relative to adjust eccentric wheel 4 (i.e. AB bar) turn over centainly
Angle, therefore AD point-to-point transmission is adjusted apart from size in the triangle ABD of Figure 12, final to adjust take-up eccentricity L and seam
It threads the take-up amount of machine.After adjusting, in normal sewing, the relative position of AB bar and BD bar is solid in the triangle ABD of Figure 12
It is fixed, and due to feed tip eccentric wheel 6 is fixed on upper axis 2, feed tip eccentric wheel 6 and adjusting between eccentric wheel 4 has stiction, with
And the left end of take-up eccentric wheel 5 is located in the sliding slot 63 of feed tip eccentric wheel 6, so that feed tip eccentric wheel 6, take-up eccentric wheel 5
It is rotated synchronously with 4 three of eccentric wheel is adjusted with upper axis 2, driving line-choosing connecting rod 3 is swung, and then drives Yarn taking-up mechanism movement；This
When, it adjusts load when the maximum static friction torque M1 between eccentric wheel 4 and feed tip eccentric wheel 6 is greater than sewing machine operating and passes through take-up
Connecting rod 3 acts on the torque M3 on take-up eccentric wheel 5.
In addition, offering location hole on the right side of take-up eccentric wheel 5, tightly fixation is parallel in the location hole
The spacer pin 11 of upper axis 2, therefore the left end of spacer pin 11 is fixed in take-up eccentric wheel 5；As shown in figs. 4 and 7, eccentric wheel is adjusted
The limiting slot 42 being arc-shaped is offered on 4 left sides towards take-up eccentric wheel 5, the right end of spacer pin 11 slideably disposes
In limiting slot 42, adjusting eccentric wheel 4 can be constrained by the mutual cooperation of spacer pin 11 and limiting slot 42 and turned over relative to upper axis 2
Angle, to define the adjustable range of the take-up amount of take-up eccentricity L and sewing machine；In the present embodiment, take-up eccentricity L
Range be 1.5mm-3.5mm, preferably 3.0mm-3.5mm.
As shown in Figure 3 and Figure 4, the eccentric cover board 9 positioned at 7 left side of feed tip connecting rod is cased on upper axis 2, feed tip connecting rod 7 has
The feed tip interconnecting piece 71 being connected with feed tip eccentric wheel 6, eccentric cover board 9, which is fixed on feed tip eccentric part 61 in feed tip eccentric wheel 6, to be carried on the back
To on the left side of take-up eccentric wheel 5, and eccentric cover board 9 covers the feed tip eccentric part 61 and feed tip interconnecting piece of feed tip eccentric wheel 6
71。
Further, as shown in Figure 3 and Figure 4, the Yarn taking-up mechanism includes perpendicular to the line seat axis 12 excessively of upper axis 2, fixation
In the curved needle crank 13 crossed on line seat axis 12, it was fixed on the line seat 14 excessively of 12 end of line seat axis and was mounted on line seat 14
On cross line plate and cross line plate pressing plate, described cross before and after line seat axis 12 extends, and the curved needle crank 13 is far from crossing line seat axis 12
Left end is equipped with ball head 131, and the lower end of the line-choosing connecting rod 3 offers the accepting hole 31 of accommodating ball head 131, the ball head
131 with the universal cooperation of accepting hole 31；In other words, ball head 131 has spherical outside surface, and the hole wall of accepting hole 31 has Internal Spherical Surface, ball
The outer peripheral surface on head 131 is matched with the Internal Spherical Surface of accepting hole 31.Upper axis 2 is driven by adjusting eccentric wheel 4 and take-up eccentric wheel 5
Line-choosing connecting rod 3 is swung, and line-choosing connecting rod 3 drove line seat axis 12 to swing by curved needle crank 13 again, to drive line seat 14, mistake
Line plate is acted with line plate pressing plate is crossed, and realizes take-up.
The present invention also provides a kind of sewing machine, sewing machine as described above simple take-up is installed in the sewing machine and is adjusted
Mechanism.
In conclusion this application involves the simple take-up regulating mechanism of sewing machine realize and flat seaming machine take-up eccentricity and choose
Adjustable, the step-less adjustment of take-up eccentricity within the scope of achievable 1.5mm-3.5mm as needed, so that flat seaming machine possesses of line amount
Better sewing adaptability, enhances the product synthesized competitiveness of flat seaming machine, also, the upper axis in the application be an optical axis,
Rather than crankshaft in the prior art, to simplify upper axis self structure, so that upper section assembly technology is more simple in flat seaming machine；Again
Person, adjusting take-up eccentricity, operation is very easy, does not need to dismantle the upper cover of casing, it is only necessary to be inserted into upper cover using tool
On through-hole, it is simple to operation.So the present invention effectively overcomes various shortcoming in the prior art and has high industrial
Utility value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of simple take-up regulating mechanism of sewing machine including rotatably upper axis (2) and drives choosing for Yarn taking-up mechanism movement
Line connecting rod (3), it is characterised in that: it further include adjusting eccentric wheel (4) and take-up eccentric wheel (5), adjusting eccentric wheel (4) installation
On upper axis (2) and the one end of eccentric wheel (4) towards take-up eccentric wheel (5) is adjusted equipped with axially projecting adjusting eccentric part
(41), the take-up eccentric wheel (5) is installed in rotation on the periphery for adjusting eccentric part (41), and the line-choosing connecting rod (3) is separate
One end of Yarn taking-up mechanism is installed in rotation on the periphery of take-up eccentric wheel (5), the centre of gyration O1 of the upper axis (2), adjusts
In the cooperation center O2 and take-up eccentric wheel (5) of eccentric part (41) and take-up eccentric wheel (5) and the cooperation of line-choosing connecting rod (3)
Heart O3 three's eccentric setting；When sewing machine is sewed, the upper axis (2) and adjusting eccentric wheel (4) are opposing stationary；Take-up amount is adjusted
When, the upper axis (2) and adjusting eccentric wheel (4) relatively rotate, the centre of gyration O1 of axis (2), adjusting eccentric part (41) in change
With the cooperation center O3 three's of the cooperation center O2 and take-up eccentric wheel (5) and line-choosing connecting rod (3) of take-up eccentric wheel (5)
Relative position, and then change the cooperation center O3 of take-up eccentric wheel (5) and line-choosing connecting rod (3) and the centre of gyration O1 of upper axis (2)
Between take-up eccentricity L.
2. the simple take-up regulating mechanism of sewing machine according to claim 1, it is characterised in that: further include being fixed on axis
(2) feed tip eccentric wheel (6) and one end on are installed in rotation on the feed tip connecting rod (7) of feed tip eccentric wheel (6) periphery, institute
State the centre of gyration O1 of axis (2) and the cooperation center O4 eccentric setting of feed tip eccentric wheel (6) and feed tip connecting rod (7), the tune
It saves eccentric wheel (4), take-up eccentric wheel (5) and feed tip eccentric wheel (6) three and pushes against or adjust eccentric wheel (4) and feed tip eccentric wheel
(6) it pushes against, makes to adjust eccentric wheel (4) and feed tip eccentric wheel (6) between the two with axial pre tightening force, the feed tip connecting rod (7)
For driving feed tip mechanism action.
3. the simple take-up regulating mechanism of sewing machine according to claim 2, it is characterised in that: the adjusting eccentric wheel (4)
Periphery offer detent slot (43).
4. the simple take-up regulating mechanism of sewing machine according to claim 2, it is characterised in that: the feed tip eccentric wheel (6)
Positioned at take-up eccentric wheel (5) at the one end for adjusting eccentric wheel (4), and feed tip eccentric wheel (6) has and feed tip connecting rod (7) phase
The feed tip eccentric part (61) of cooperation and the feed tip body part (62) between feed tip connecting rod (7) and line-choosing connecting rod (3), institute
It states and is offered sliding slot (63) on the end face of feed tip body part (62) towards take-up eccentric wheel (5), the end of the take-up eccentric wheel (5)
Portion be located in sliding slot (63) and can (63) along the chute extending direction sliding, and the outer peripheral surface and sliding slot of take-up eccentric wheel (5)
(63) cell wall is in contact.
5. the simple take-up regulating mechanism of sewing machine according to claim 2, it is characterised in that: further include covering in upper axis (2)
On locking nut (8) and multiple saucer washers (15), matched with one section with locking nut (8) on the upper axis (2)
Upper axis spiro rod section (21), the locking nut (8), which is located at, adjusts eccentric wheel (4) backwards to the side of take-up eccentric wheel (5), multiple dish
Shape washer (15) be located at adjust between eccentric wheel (4) and locking nut (8), make to adjust eccentric wheel (4) and feed tip eccentric wheel (6) it
Between have axial pre tightening force.
6. the simple take-up regulating mechanism of sewing machine according to claim 2, it is characterised in that: further include covering in upper axis (2)
On eccentric cover board (9), the feed tip connecting rod (7) has the feed tip interconnecting piece (71) that is connected with feed tip eccentric wheel (6), described
Eccentric cover board (9) is fixed on feed tip eccentric wheel (6) on the end face of take-up eccentric wheel (5), and eccentric cover board (9) covers feed tip
Eccentric wheel (6) and feed tip interconnecting piece (71).
7. the simple take-up regulating mechanism of sewing machine according to claim 1, it is characterised in that: the end of the upper axis (2)
Handwheel (10) are fixed with, which is located at the outside of sewing machine case (1).
8. the simple take-up regulating mechanism of sewing machine according to claim 1, it is characterised in that: further include being parallel to axis
(2) spacer pin (11) offers limiting slot (42), institute on the end face of adjusting eccentric wheel (4) towards take-up eccentric wheel (5)
The one end for stating spacer pin (11) is fixed in take-up eccentric wheel (5), the other end is slidably mounted in limiting slot (42).
9. the simple take-up regulating mechanism of sewing machine according to claim 1, it is characterised in that: the Yarn taking-up mechanism includes hanging down
Directly in upper axis (2) cross line seat axis (12), be fixed on line seat axis (12) curved needle crank (13), be fixed on line seat axis
(12) end cross line seat (14) and be mounted on line seat (14) cross line plate and cross line plate pressing plate, the curved needle crank
(13) ball head (131) are equipped with far from the one end for crossing line seat axis (12), the other end of the line-choosing connecting rod (3) offers accommodating ball
The accepting hole (31) on head (131), the ball head (131) match with accepting hole (31).
10. a kind of sewing machine, it is characterised in that: be equipped with the described in any item sewing machines of claim 1-9 in the sewing machine
Simple take-up regulating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710456864.8A CN107245818B (en) | 2017-06-16 | 2017-06-16 | A kind of simple take-up regulating mechanism of sewing machine and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710456864.8A CN107245818B (en) | 2017-06-16 | 2017-06-16 | A kind of simple take-up regulating mechanism of sewing machine and sewing machine |
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| Publication Number | Publication Date |
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| CN107245818A CN107245818A (en) | 2017-10-13 |
| CN107245818B true CN107245818B (en) | 2019-11-19 |
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| CN201710456864.8A Active CN107245818B (en) | 2017-06-16 | 2017-06-16 | A kind of simple take-up regulating mechanism of sewing machine and sewing machine |
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| CN110952233B (en) * | 2019-12-12 | 2021-06-04 | 东莞理工学院 | Simple adjusting device of thread take-up mechanism of industrial sewing machine |
| TWI759707B (en) * | 2020-03-26 | 2022-04-01 | 星銳縫紉機股份有限公司 | Sewing machine needle with replaceable thread guide |
| CN114197120B (en) * | 2020-09-18 | 2023-08-11 | 杰克科技股份有限公司 | Thread take-up synchronous regulating mechanism of flat seaming machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1037018C (en) * | 1994-02-08 | 1998-01-14 | 周鹤鸣 | Five-lever thread pickup mechanism with adjustable thread feed for sewing machine |
| JP2002143587A (en) * | 2000-11-07 | 2002-05-21 | Juki Corp | Moving mechanism for sewing machine |
| JP2006061605A (en) * | 2004-08-30 | 2006-03-09 | Brother Ind Ltd | Rotating thread take-up device of sewing machine |
| JP2007097811A (en) * | 2005-10-04 | 2007-04-19 | Brother Ind Ltd | Link thread take-up mechanism of sewing machine |
| TWI429801B (en) * | 2011-11-14 | 2014-03-11 | Kaulin Mfg Co Ltd | Adjustable stroke of take-up thread and needle rod of sewing machine |
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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. |