CN107142621A - Differential feed computer flat sewing machine - Google Patents
Differential feed computer flat sewing machine Download PDFInfo
- Publication number
- CN107142621A CN107142621A CN201710441899.4A CN201710441899A CN107142621A CN 107142621 A CN107142621 A CN 107142621A CN 201710441899 A CN201710441899 A CN 201710441899A CN 107142621 A CN107142621 A CN 107142621A
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- Prior art keywords
- differential
- plate
- crank
- regulation
- differential feed
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- 238000009958 sewing Methods 0.000 title claims abstract description 60
- 230000009189 diving Effects 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000012634 fragment Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 210000003127 knee Anatomy 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 11
- 239000004744 fabric Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
- D05B27/16—Work-feeding means with rotary circular feed members with differential feed motions
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
- D05B27/08—Work-feeding means with feed dogs having horizontal and vertical movements with differential feed motions
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
Abstract
The present invention relates to a kind of differential feed computer flat sewing machine, it includes body, lower differential feed mechanism, differential manual adjustment portion point under lower differential feed mechanism includes, the part includes manual wrench, diving board, limit base, upper limit part, lower limit part, limiting plate, crank axle, regulation connecting rod, manual wrench fixes the diving board of a tilting, and rotational positioning is fixedly connected with the crank axle of body, the crank end of crank axle is movably hinged regulation connecting rod one end, and the regulation connecting rod other end is connected with the 3rd kinematic link of differential regulation under control；The limit base is fixed on body, limit base is provided with vertical bar shape trench hole, upper limit part and lower limit part are fixedly connected with bar shape trench hole, lower limit part is fixedly connected with limiting plate, limiting plate is provided with gear groove towards the side of diving board, and diving board is provided with the fixture block stopped after manual wrench rotation with gear groove formation elastic card.By hand by diving board and rotation manual spanner, you can realize the regulation of lower differential feed, operate more convenient.
Description
Technical field
It is a kind of differential feed computer flat sewing machine the present invention relates to sewing machine.
Background technology
Flat seam machine mainly with a sewing thread, a kind of stitching is formed on sewing, make one or more layers sewing intertexture or
The machine united by a seam.It is generally divided into two kinds of purposes of thin material and thick material, flush joint function sewing cotton, fiber crops, silk, hair, staple fibre etc.
Fabric, and the product such as leather, plastics, paper, thin material are generally used for knitting, underwear, shirt, uniform etc., and thickness material is generally used for
All kinds of gym suits, jean, fashionable dress, overcoat, shoes and hats, skin son, case and bag etc., flat seam machine is most basic machine in sewing device.
In order to meet various sewing operating modes, the more use computer control, and the work(with differential feed of existing flat seam machine
Can, it is not only easy to use, and the efficiency of sewing can be improved, realize various sewing patterns.But existing differential feed regulation is often
Mechanism is complex, and is generally to control differential regulation manually, and regulation is using comparatively wasting time and energy, as sewing difficulty adds
Greatly, regulation operation is also more cumbersome, influence sewing efficiency and sewing efficiency.Therefore, needing to enter existing differential feed flat seam machine
Row is improved.
The content of the invention
To overcome above-mentioned deficiency, the purpose of the present invention is to provide a kind of differential feed computer flat sewing machine to this area, makes it
Solve the differential regulation operation of existing similar flat seam machine more inconvenient, influence the technical problem of sewing efficiency.The purpose is to by such as
What lower technical scheme was realized.
A kind of differential feed computer flat sewing machine, it include body, lower differential feed axle, feed spool, feed lifting rock shaft, under differential give
Expect mechanism, feed spool rotation is socketed on outside lower differential feed axle, lower differential feed axle two ends rotational positioning in body, under it is differential
Feed mechanism include feeding crank, under it is differential regulation crank, feeding regulation crank, conversion crank, the first kinematic link, second pass
Dynamic connecting rod, the 3rd kinematic link, feeding crank rotation are socketed on lower differential feed axle, under differential regulation crank be fixed under it is differential
Feed spool, feeding regulation crank is fixed on feed spool, and conversion crank rotation is socketed on feed lifting rock shaft, under differential regulation crank shank
In cuboid, one end of the 3rd kinematic link is hinged external member, and external member cuboid socket of differential regulation crank with is matched somebody with somebody in slip
Close, the other end of the 3rd kinematic link is movably hinged the crank end of conversion crank, the crank end is movably hinged the first transmission simultaneously
Connecting rod, each one end of the second kinematic link, the first kinematic link other end are movably hinged feeding regulation crank, and the second kinematic link is another
One end is movably hinged the crank end of feeding crank.Its structural feature be the lower differential feed mechanism under including it is differential it is manual adjust
Save part, under differential manual adjustment portion point include manual wrench, diving board, limit base, upper limit part, lower limit part, limiting plate, song
Arbor, regulation connecting rod, the stationary plane of the manual wrench side are fixedly connected with diving board, and diving board one end is protected relative to the stationary plane
Elastic tilting is held, the stationary plane of manual wrench is fixedly connected with crank axle one end, and crank axle rotational positioning is in body, the song of crank axle
Pommel portion is movably hinged regulation connecting rod one end, and crank connection lever pin, lever pin is connected to the extension spring that crank axle resets rotation, drawn
Spring is fixedly connected with the body；The bar portion of regulation the connecting rod other end and the 3rd drive link is movably hinged；It is described spacing
Seat is fixed on the body, and limit base is provided with vertical bar shape trench hole, bar shape trench hole and is fixedly connected with upper limit part and lower limit
Part, the rotation angle limit of upper limit part, lower limit part to the manual wrench；The lower limit part is fixedly connected with limit base
Limiting plate is fixedly connected with simultaneously, and limiting plate is provided with gear groove towards the side of diving board, after diving board is provided with manual wrench rotation
The fixture block stopped with gear groove formation elastic card.Said structure it is a kind of it is new under differential manual adjustment means, bullet is pressed by hand
Plate and rotation manual spanner, you can realize the regulation of lower differential feed, diving board is unclamped in regulation afterwards in place, you can under keeping current
Differential feed gear, is operated more convenient.And above-mentioned limiting plate can along limit base vertical bar shape trench hole adjusting position, so as to change
Become the gear effect of lower differential feed, to improve the adjustable range of lower differential feed.
In the differential feed computer flat sewing machine, the head end of the body is provided with to be connected down with the crank axle other end
Differential pneumatic adjusts part, the lower differential pneumatic adjustment portion point include the first cylinder, steel ball with holes, under differential adjustable plate, band
Adjusting screw rod, locking knob, screw bolt seat, graduation indication board, the pointer of hand button, it is described under differential adjustable plate and the crank axle consolidate
Calmly, bar hole is provided with eccentric plate face position relative to crank axle axle center on differential adjustable plate under, first cylinder is fixed
In body, the cylinder rod of the first cylinder sequentially passes through the hole of the bar hole and the steel ball, and is threadedly coupled locking nut, described
Steel-ball limiting in locking nut and under differential adjustable plate bar hole between；The adjusting screw rod is threadedly coupled the locking knob
And screw bolt seat, adjusting screw rod end carries out spacing through screw bolt seat and to the rotation of differential adjustable plate under described；The scale refers to
Show that board is fixed on the body, the pointer be fixed on it is described under differential adjustable plate, and pointer is under during differential adjustable plate rotation
Instruction is cooperatively formed with graduation indication board.By the structure, differential adjustable plate is rotated under being linked using the first cylinder, so as to drive
Above-mentioned crank axle rotation, realizes the regulation to lower differential feed, more laborsaving convenience.Under the rotation angle of differential adjustable plate pass through
Adjusting screw rod is spacing, so that the state of lower differential feed can be changed by rotating adjusting screw rod, adjusts more convenient, and under differential adjust
Pointer rotation is driven when saving plate rotation, coordinates the graduation indication board intuitively current lower differential feed state of display.
The differential feed computer flat sewing machine includes upper differential feed mechanism, and upper differential feed mechanism includes controlling above differential send
The differential adjusting screw rod component and the second cylinder of material, differential adjusting screw rod component include controlling upper differential regulation in the way of rotation
Upper differential adjustable plate, upper differential adjustable plate is located at the head end of the body, and second cylinder is fixed on body, the second gas
The cylinder rod of cylinder is fixedly connected with push rod, the integrated hook part provided with the linkage that offseted with the push rod of the upper differential adjustable plate, and connection
When dynamic, upper differential adjustable plate formation rotation.By the structure, using the upper differential adjustable plate rotation of the second cylinder linkage, so that real
Now the regulation of upper differential feed, is equally operated more convenient laborsaving.
In above-mentioned differential feed computer flat sewing machine, first cylinder, the controlling switch of the second cylinder are arranged at the machine
Below the platen of body, controlled by the knee of human body.By the structure, substituted manually with foot-propelled, reduce needs frequently in sewing work
It is cumbersome that manual switching is controlled, and improves sewing efficiency.
The differential feed computer flat sewing machine includes volume bottom presser foot component, and it includes presser foot component and upper differential feed tooth,
Presser foot component includes presser feet handle, pressure foot, the first pin, presser feet limiting plate, the second pin, limit spring；The presser feet handle bottom
Portion is movably hinged pressure foot by the first pin, and presser feet front edge of board side is provided with after the first stopper slot that Open Side Down, pressure foot
Homonymy is held to be provided with the second opening up stopper slot, the spacing front edge of board of presser feet is provided with and the spacing cooperation of first stopper slot
Projection, presser feet limiting plate rear end with the second stopper slot provided with embedded second stopper slot and passing through the second pin moveable hinge
The hinged seat connect, sets the limit spring, the limit spring is to hinged seat between hinged seat and the second spacing trench bottom
Applying one makes the power that both the presser feet limiting plate and pressure foot are rotated against using second pin as axle center；The upper difference
Dynamic feeding tooth bottom is provided with the tooth head of rectangular-blocklike, and the pressure foot side where the presser feet limiting plate is provided with the adaptation tooth
Cephalomotor chute, and the tooth head is limited in chute by presser feet limiting plate.Above-mentioned upper differential feed tooth is immediately ahead of eedle
The amount of feeding of upper strata sewing is controlled, with reference to the characteristics of upper differential feed, the size that sewing is fed carried out as needed
Control, so that due to distortion problem caused by the oblique gesture of levels sewing during effectively realizing the volume bottom.By contracting as far as possible
Contact area between small upper differential feed tooth and sewing, makes the turning of sewing more smooth.In addition, above-mentioned presser feet is spacing
Hardened structure so that integrated model is compact, easy to use and flexible, can effectively ensure that the width of seam.Above-mentioned pressure foot structure, is protected
Demonstrate,prove the stability of charging.
The differential feed computer flat sewing machine include line ball fixture, line ball fixture include fixed plate, installing plate, lower limiting board,
Upper limit plate, pressing plate, described installing plate one end are hinged with described fixed plate one end for plane, and fixed plate is provided with solid with the body
Surely the connecting hole connected, the installing plate other end is fixedly connected with lower limiting board, and the pressing plate is hinged in upset, pressure with installing plate
Plate one end is fixedly connected with upper limit plate corresponding with the lower limiting board, and shape between the two when upper limit plate and lower limiting board abutting
Into the material folding mouthful of closing, the pressing plate other end is connected to overturn the first spacing caging bolt, and connects the first locking nut；Pressure
Back-moving spring is set between installing plate in the middle part of plate, the back-moving spring, which applies one to pressing plate, makes it overturn supreme limiting plate with
The active force of limiting plate separation, the position of pressing plate correspondence back-moving spring is threadedly coupled for being socketed spacing second to back-moving spring
Caging bolt, the second caging bolt connects the second locking nut；The installing plate side is fixedly connected towards side surface direction elasticity
The shell fragment of change, and shell fragment is provided with and carries out upset limit to pressing plate when the upper limit plate and lower limiting board offset to form material folding mouthful
The rib of position, when stir shell fragment release the rib to pressing plate it is spacing when, the pressing plate under the action of reset spring from
Dynamic upset, the material folding mouthful is opened.By the structure, using folding control of the shell fragment to pressing plate, realize that the quick of material folding mouthful beats
Open or switching action, meanwhile, it is hinged using the plane of installing plate and fixed plate, convenient rotational installation plate, to facilitate material folding mouthful
Quick blowing or feeding.The line ball fixture is installed on to the sewing region of sewing machine, material folding mouthful clamping cloth, to ensure that cloth is put down
It is straight and stably by specified sewing region, and make cloth edge and being consistent property of eedle distance, it is ensured that sewing thread trace
Linearity, reaches preferable line ball effect.
In above-mentioned differential feed computer flat sewing machine, the upper limit plate, lower limiting board respectively with corresponding pressing plate, installing plate
Between be bolted, and upper limit plate, lower limiting board are equipped with the bar shaped slide opening being slidably matched with corresponding bolt, work as the upper limit
When position plate, lower limiting board are along bar shaped slide opening direction slidable adjustment, the material folding mouthful size changes.By the structure, facilitate material folding
The opening regulation of mouth, to adapt to various sizes of cloth sewing line ball operation.
The present invention not only has top and bottom feed function, and regulation operation is more convenient, laborsaving, improves sewing machine seam
Efficiency of threading and differential sewing efficiency, the sewing machine for being suitable for various sewing operating modes are used, or the structure of similar sewing machine is improved.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is a part of structural representation of scheme of differential feed regulation under the present invention.
Fig. 3 is Fig. 2 part-structure exploded perspective view.
Fig. 4 is Fig. 3 assembling structure schematic diagram.
Fig. 5 is the part-structure schematic diagram of the present invention.
Fig. 6 is the upper differential feed part-structure schematic diagram of the present invention.
Fig. 7 is the part-structure schematic diagram of scheme two of differential feed regulation under the present invention.
Fig. 8 is Fig. 7 another viewing angle constructions schematic diagram.
Fig. 9 is the volume bottom presser foot component configuration schematic diagram of the present invention.
Figure 10 is the volume bottom presser foot component dimensional structure diagram of the present invention.
Figure 11 is the line ball fixture planar structure schematic diagram of the present invention.
Figure 12 is the line ball fixture dimensional structure diagram one of the present invention.
Figure 13 is the line ball fixture dimensional structure diagram two of the present invention.
Figure 14 is the line ball fixture material folding mouthful open mode structural representation of the present invention.
Figure 15 is the structural representation of the line ball fixture installing plate opposing fixed plate Plane Rotation of the present invention.
Sequence number and entitled in figure：1st, body, 101, supporting plate, 2, under differential manual adjustment portion point, 3, lower differential pneumatic
Adjust part, the 301, first cylinder, 302, steel ball, 303, under differential adjustable plate, 304, pointer, 305, graduation indication board, 306,
Adjusting screw rod, 307, screw bolt seat, 308, locking knob, 4, differential adjusting screw rod component, the 401, second cylinder, 402, upper differential adjust
Save plate, 403, hook part, 404, push rod, 5, line ball fixture, 501, fixed plate, 5011, connecting hole, 502, installing plate, 503, pressing plate,
504th, the first caging bolt, the 505, first locking nut, 506, back-moving spring, the 507, second caging bolt, the 508, second locking
Nut, 509, shell fragment, 5091, rib, 510, lower limiting board, 511, upper limit plate, 512, material folding mouthful, 6, lower differential feed axle,
7th, feed spool, 8, under differential regulation crank, 9, feeding crank, 10, feeding regulation crank, 11, external member, 1101, groove block,
1102nd, groove lid, the 12, first kinematic link, the 13, second kinematic link, the 14, the 3rd kinematic link, 15, conversion crank, 16, lift tooth
Axle, 17, regulation connecting rod, 18, crank axle, 19, lever pin, 20, limit base, 2001, bar shape trench hole, 21, upper limit part, 22, lower limit
Position part, 23, limiting plate, 2301, gear groove, 24, manual wrench, 25, diving board, 2501, fixture block, 26, presser feet handle, 27, presser feet
Plate, the 2701, first stopper slot, the 2702, second stopper slot, 2703, chute, the 28, first pin, 29, limit spring, 30, presser feet
Limiting plate, 3001, projection, 3002, hinged seat, the 31, second pin, 32, upper differential feed tooth, 3201, tooth head.
Embodiment
In conjunction with accompanying drawing, the invention will be further described.
As shown in figures 1-8, the differential feed computer flat sewing machine includes body 1, upper differential feed mechanism, lower differential feed machine
Structure, lower differential feed axle 6, feed spool 7, feed lifting rock shaft 16, presser foot component, and the line ball fixture 5 that auxiliary is used.Because in flat seam machine
Structural components are more, and only improved part is disclosed in detail by the present invention, and the part not being disclosed in detail is public with reference to pattra profit
The model 5490A-7 of department sewing machine, or with reference to Juki Corporation model DLU-5490N-7 sewing machine.
In the present invention, it is in position rotating that feed spool 7, which is socketed on the lower outside of differential feed axle 6, and the two ends of feed spool 7 pass through axle sleeve
Rotational positioning, by feed spool 7 and both transmission differences of lower differential feed axle 6 so as to realize lower differential feed, passes through in body 1
Change rotation amplitude of the feed spool 7 relative to lower differential feed axle 6, so as to realize lower differential feed regulation.With reference to differential under this
Feeding principle, it is differential under to send mechanism to carry out expansion explanation.As shown in Fig. 2 lower differential feed mechanism include feeding crank 9, under
Differential regulation crank 8, feeding regulation crank 10, conversion crank 15, the first kinematic link 12, the second kinematic link the 13, the 3rd are passed
Dynamic connecting rod 14, feeding crank 9 is socketed on lower differential feed axle 6 in position rotating, under differential regulation crank 8 and lower differential feed axle
6 are fixed, and feeding regulation crank 10 is fixed with feed spool 7, and conversion crank 15 is socketed on feed lifting rock shaft 16 in position rotating, under differential tune
The shank for saving crank 8 is in cuboid, and one end of the 3rd kinematic link 14 is hinged external member 11, the differential regulation crank 8 with of external member 11
Cuboid socket in being slidably matched, external member 11 is fixed by screw by groove block 1101 and groove lid 1102 and constituted.3rd transmission
The other end of connecting rod 14 be movably hinged conversion crank 15 crank end, the crank end be movably hinged simultaneously the first kinematic link 12,
Each one end of second kinematic link 13, the other end of the first kinematic link 12 is movably hinged feeding regulation crank 10, the second kinematic link
13 other ends are movably hinged the crank end of feeding crank 9.Above structure is led to as the feeding running part of lower differential feed mechanism
The main transmission section for crossing sewing machine drives above-mentioned feeding crank 9 along the lower rotation of differential feed axle 6, and then link the second kinematic link
13, conversion crank 15 is linked along the rotation of feed lifting rock shaft 16 by the second kinematic link 13, the first kinematic link 12 of linkage of crank 15 is changed
Drive above-mentioned feeding regulation crank 10 and the rotation of feed spool 7, conversion crank 15 link simultaneously the 3rd kinematic link 14 drive it is above-mentioned
Under the differential regulation crank 8 and lower rotation of differential feed axle 6, that is, realize lower differential feed.On address the work that the description below is previously mentioned
Dynamic be hinged each means and is hinged by conventional hinge part.
Differential manual adjustment portion point 2 under the lower differential feed mechanism also includes, as in Figure 2-4, differential manual tune under this
Saving part 2 includes manual wrench 24, diving board 25, limit base 20, upper limit part 21, lower limit part 22, limiting plate 23, crank axle
18th, connecting rod 17 is adjusted, the stationary plane of the side of manual wrench 24 is fixedly connected with diving board 25, and the one end of diving board 25 is relative to the stationary plane
Keep elasticity to tilt, the stationary plane of manual wrench 24 is fixedly connected with the one end of crank axle 18, the rotational positioning of crank axle 18 in body 1,
The crank end of crank axle 18 is movably hinged regulation connecting rod 17 one end, and crank connection lever pin 19, lever pin 19 is connected to crank
Axle 18 resets extension spring one end of rotation, and the extension spring other end is fixedly connected with body 1；Adjust the other end of connecting rod 17 and the 3rd drive link
Bar portion is movably hinged.Limit base 20 is fixed on body 1, and limit base 20 is provided with vertical bar shape trench hole 2001, bar shape trench hole 2001
Interior to be fixedly connected with upper limit part 21 and lower limit part 22 by bolt part, upper limit part 21, lower limit part 22 are to manual wrench 24
Rotation angle limit.Lower limit part 22 is fixedly connected with limiting plate 23, the direction of limiting plate 23 while being fixedly connected with limit base 20
The side of diving board 25 be provided with gear groove 2301, diving board 25 be provided with after the rotation of manual wrench 24 with gear groove 2301 formation bullet
Property locking fixture block 2501.
Under above-mentioned in addition to differential manual adjustment portion point 2, the lower differential feed mechanism also may include lower differential pneumatic regulation
Part 3, it is equally connected linkage its rotation formation regulation with above-mentioned crank axle 18, is specially：The lower differential pneumatic adjustment portion
Points 3 include the first cylinder 301, steel ball 302 with holes, under differential adjustable plate 303, adjusting screw rod 306, locking knob with hand button
308th, screw bolt seat 307, graduation indication board 305, pointer 304, under differential adjustable plate 303 fixed with crank axle 18, under differential regulation
Bar hole is provided with eccentric plate face position relative to the axle center of crank axle 18 on plate 303, the first cylinder 301 is fixed on the machine of body 1
On the supporting plate 101 of head position, the cylinder rod of the first cylinder 301 sequentially passes through the hole of the bar hole and steel ball 302, and screw thread connects
Connect locking nut, steel ball 302 be limited in locking nut and under differential adjustable plate 303 bar hole between.The screw thread of adjusting screw rod 306
Connect locking knob 308 and screw bolt seat 307, the end of adjusting screw rod 306 passes through screw bolt seat 307, and under differential adjustable plate 303 with
The rotation progress that cylinder rod is formed when shrinking is spacing, and body 1 is fixedly connected with the differential adjustable plate 303 under and when institute is extended with cylinder
The rotation of formation carries out spacing spacer pin.Graduation indication board 305 is fixed on body 1, the differential adjustable plate under being fixed on of pointer 304
303, and pointer 304 cooperatively forms instruction during differential 303 rotation of adjustable plate under with graduation indication board 305.The lower differential pneumatic
Regulation part 3 operation principle be：By rotating the hand button of adjusting screw rod 306, and locking knob 308, so as to change regulation
The restraining position of the end of screw rod 306, the cylinder rod of the first cylinder 301 shrinks drive under the differential rotation of adjustable plate 303 to regulation
The end of screw rod 306 offsets to form spacing, under differential adjustable plate 303 drive the rotation of crank axle 18, realize lower differential feed regulation.When
When the cylinder rod of first cylinder 301 resets, crank axle 18 resets in the presence of above-mentioned extension spring, differential adjustable plate 303 under drive
Reset.
As shown in Figure 6, Figure 7, the differential feed computer flat sewing machine also includes upper differential feed mechanism, upper differential feed mechanism
Include the cylinder 401 of differential adjusting screw rod component 4 and second of the upper differential feed of control, differential adjusting screw rod component 4 includes putting
The mode turned controls the upper differential adjustable plate 402 of differential regulation, and upper differential adjustable plate 402 is located at the head end of body 1, second
Cylinder 401 is fixed on the supporting plate 101 of the Handpiece Location of body 1, and the cylinder rod of the second cylinder 401 is fixedly connected with push rod 404, on
The integrated hook part 403 provided with the linkage that offseted with push rod 404 of differential adjustable plate 402, and during linkage, upper differential adjustable plate 402 is formed
Rotation.The spacing position of rotation to upper differential adjustable plate 402 is preset by differential adjusting screw rod component 4, so that when control the
During upper differential 402 rotation of adjustable plate of the cylinder rod linkages of two cylinders 401, the upper differential feed regulation needed for being formed.
In above-mentioned differential feed computer flat sewing machine, the first cylinder 301, the controlling switch of the second cylinder 401 are arranged at described
Below the platen of body 1, controlled by the knee of human body.
As shown in figs. 9-10, the differential feed computer flat sewing machine is improved for volume bottom presser foot component, is specially：
The volume bottom presser foot component includes presser foot component and upper differential feed tooth 32, and presser foot component includes presser feet handle 26, pressure foot 27, the
One pin 28, presser feet limiting plate 30, the second pin 31, limit spring 29；Lived by the first pin 28 bottom of presser feet handle 26
Dynamic to be hinged pressure foot 27, the front end side of pressure foot 27 is provided with the first stopper slot 2701 that Open Side Down, the rear end homonymy of pressure foot 27
Provided with the second opening up stopper slot 2702, the front end of presser feet limiting plate 30 is provided with spacing with first stopper slot 2701
The projection 3001 of cooperation, the rear end of presser feet limiting plate 30 provided with embedded second stopper slot 2702 and with the second stopper slot 2702
The hinged seat 3002 being movably hinged by the second pin 31, is set between hinged seat 3002 and the bottom of the second stopper slot 2702
The limit spring 29, the limit spring 29 applies one to hinged seat 3002 makes the presser feet limiting plate 30 and pressure foot 27
The power that both are rotated against with second pin 31 for axle center；The upper bottom of differential feed tooth 32 is provided with rectangular-blocklike
Tooth first 3201, the side of pressure foot 27 where the presser feet limiting plate 30 is provided with the chute for being adapted to first 3201 motion of the tooth
2703, and the tooth first 3201 is limited in chute 2703 by presser feet limiting plate 30.
As shown in figs. 11 and 15, the differential feed computer flat sewing machine also includes line ball fixture 5, and it includes fixed plate 501, peace
Plate 502, lower limiting board 510, upper limit plate 511, pressing plate 503 are filled, the one end of installing plate 502 is planar hinge with the one end of fixed plate 501
Connect, fixed plate 501 is provided with the connecting hole 5011 being fixedly connected with body 1, the other end of installing plate 502 is fixedly connected with lower limiting board
510, pressing plate 503 is hinged in upset with installing plate 502, and the one end of pressing plate 503 is fixedly connected and the corresponding upper limit of lower limiting board 510
Plate 511, and the material folding mouthful 512 of closing, the other end of pressing plate 503 are formed when upper limit plate 511 and the abutting of lower limiting board 510 between the two
It is connected to overturn the first spacing caging bolt 504, and connects the first locking nut 505；The middle part of pressing plate 503 and installing plate
Back-moving spring 506 is set between 502, the back-moving spring 506 pressing plate 503 is applied one make its overturn supreme limiting plate 511 with
The active force that the lower limiting board 510 of installing plate 502 is separated, the position of the correspondence back-moving spring 506 of pressing plate 503 be threadedly coupled for pair
Back-moving spring 506 is socketed the second spacing caging bolt 507, and the second caging bolt 507 connects the second locking nut 508；Install
The side of plate 502 is fixedly connected with the shell fragment 509 towards the side surface direction Flexible change, and shell fragment 509 is provided with when upper limit plate 511 is with
Upset spacing rib 5091 is carried out when limiting plate 510 offsets to form material folding mouthful 512 to pressing plate 503, is released when stirring shell fragment 509
Rib 5091 to pressing plate 503 it is spacing when, the automatic turning under the effect of back-moving spring 506 of pressing plate 503, material folding mouthfuls 512 is opened.On
Upper limit plate 511, lower limiting board 510 is stated to be bolted between corresponding pressing plate 503, installing plate 502 respectively, and the upper limit
Position plate 511, lower limiting board 510 are equipped with the bar shaped slide opening being slidably matched with corresponding bolt, when upper limit plate 511, lower limiting board
510 along bar shaped slide opening direction slidable adjustment when, material folding mouthful 512 sizes change.
Claims (7)
1. a kind of differential feed computer flat sewing machine, it includes body（1）, lower differential feed axle（6）, feed spool（7）, feed lifting rock shaft
（16）, lower differential feed mechanism, feed spool（7）Rotation is socketed on lower differential feed axle（6）Outside, lower differential feed axle（6）Two
Rotational positioning is held in body（1）, lower differential feed mechanism include feeding crank（9）, under differential regulation crank（8）, feeding regulation
Crank（10）, conversion crank（15）, the first kinematic link（12）, the second kinematic link（13）, the 3rd kinematic link（14）, feeding
Crank（9）Rotation is socketed on lower differential feed axle（6）, under differential regulation crank（8）It is fixed on lower differential feed axle（6）, feeding
Adjust crank（10）It is fixed on feed spool（7）, change crank（15）Rotation is socketed on feed lifting rock shaft（16）, under differential regulation crank
（8）Shank be in cuboid, the 3rd kinematic link（14）One end be hinged external member（11）, external member（11）The differential regulation crank with
（8）Cuboid socket in being slidably matched, the 3rd kinematic link（14）The other end be movably hinged conversion crank（15）Crank
End, the crank end is movably hinged the first kinematic link simultaneously（12）, the second kinematic link（13）Each one end, the first kinematic link
（12）The other end is movably hinged feeding regulation crank（10）, the second kinematic link（13）The other end is movably hinged feeding crank（9）
Crank end；It is characterized in that differential manual adjustment portion is divided under the lower differential feed mechanism includes（2）, under differential manual regulation
Part（2）Including manual wrench（24）, diving board（25）, limit base（20）, upper limit part（21）, lower limit part（22）, limiting plate
（23）, crank axle（18）, regulation connecting rod（17）, the manual wrench（24）The stationary plane of side is fixedly connected with diving board（25）, and
Diving board（25）One end keeps elasticity to tilt relative to the stationary plane, manual wrench（24）Stationary plane be fixedly connected with crank axle（18）
One end, crank axle（18）Rotational positioning is in body（1）, crank axle（18）Crank end be movably hinged regulation connecting rod（17）One
End, crank connection lever pin（19）, lever pin（19）It is connected to crank axle（18）The extension spring of rotation is resetted, extension spring is fixedly connected with institute
State body（1）；The regulation connecting rod（17）The bar portion of the other end and the 3rd drive link is movably hinged；The limit base（20）
It is fixed on the body（1）, limit base（20）Provided with vertical bar shape trench hole（2001）, bar shape trench hole（2001）Inside it is fixedly connected
The upper limit part（21）With lower limit part（22）, upper limit part（21）, lower limit part（22）To the manual wrench（24）'s
Rotation angle limit；The lower limit part（22）It is fixedly connected with limit base（20）While be fixedly connected with the limiting plate（23）,
Limiting plate（23）Towards diving board（25）Side be provided with gear groove（2301）, diving board（25）Provided with manual wrench（24）Rotation
Afterwards with gear groove（2301）Form the fixture block of elasticity locking（2501）.
2. differential feed computer flat sewing machine according to claim 1, it is characterised in that the body（1）Head end set
With the crank axle（18）The lower differential pneumatic regulation part of other end connection（3）, the lower differential pneumatic regulation part（3）Including
First cylinder（301）, steel ball with holes（302）, under differential adjustable plate（303）, the adjusting screw rod with hand button（306）, locking rotating
Button（308）, screw bolt seat（307）, graduation indication board（305）, pointer（304）, it is described under differential adjustable plate（303）With the crank
Axle（18）It is fixed, under differential adjustable plate（303）On relative to crank axle（18）Axle center is provided with bar hole in eccentric plate face position,
First cylinder（301）It is fixed on body（1）, the first cylinder（301）Cylinder rod sequentially pass through the bar hole and the steel
Ball（302）Hole, and be threadedly coupled locking nut, the steel ball（302）It is limited in locking nut differential adjustable plate with（303）
Bar hole between；The adjusting screw rod（306）It is threadedly coupled the locking knob（308）And screw bolt seat（307）, adjusting screw rod
（306）End passes through screw bolt seat（307）And to differential adjustable plate under described（303）Rotation carry out it is spacing；The graduation indication
Board（305）It is fixed on the body（1）, the pointer（304）Be fixed on it is described under differential adjustable plate（303）, and pointer（304）
The differential adjustable plate under（303）With the graduation indication board during rotation（305）Cooperatively form instruction.
3. differential feed computer flat sewing machine according to claim 1, it is characterised in that the differential feed computer flat sewing machine bag
Kuo Shang differential feeds mechanism, upper differential feed mechanism includes the differential adjusting screw rod component of the upper differential feed of control（4）With second
Cylinder（401）, differential adjusting screw rod component（4）Upper differential adjustable plate including controlling upper differential regulation in the way of rotation
（402）, upper differential adjustable plate（402）Positioned at the body（1）Head end, second cylinder（401）It is fixed on body
（1）, the second cylinder（401）Cylinder rod be fixedly connected with push rod（404）, the upper differential adjustable plate（402）It is integrated to be provided with and institute
State push rod（404）Offset the hook part of linkage（403）, and during linkage, upper differential adjustable plate（402）Form rotation.
4. differential feed computer flat sewing machine according to claim 3, it is characterised in that first cylinder（301）, second
Cylinder（401）Controlling switch be arranged at the body（1）Platen below, by human body knee control.
5. differential feed computer flat sewing machine according to claim 1, it is characterised in that the differential feed computer flat sewing machine bag
Volume bottom presser foot component is included, it includes presser foot component and upper differential feed tooth（32）, presser foot component include presser feet handle（26）, presser feet
Plate（27）, the first pin（28）, presser feet limiting plate（30）, the second pin（31）, limit spring（29）；The presser feet handle（26）Bottom
Portion passes through the first pin（28）It is movably hinged pressure foot（27）, pressure foot（27）Front end side is spacing provided with first that Open Side Down
Groove（2701）, pressure foot（27）Rear end homonymy is provided with the second opening up stopper slot（2702）, the presser feet limiting plate（30）
Front end is provided with and first stopper slot（2701）The projection of spacing cooperation（3001）, presser feet limiting plate（30）Rear end is provided with insertion
Second stopper slot（2702）It is interior and with the second stopper slot（2702）Pass through the second pin（31）The hinged seat being movably hinged
（3002）, hinged seat（3002）With second stopper slot（2702）The limit spring is set between bottom（29）, this is spacing
Spring（29）To hinged seat（3002）Applying one makes the presser feet limiting plate（30）And pressure foot（27）Both are with described second
Pin（31）The power rotated against for axle center；The upper differential feed tooth（32）Bottom is provided with the tooth head of rectangular-blocklike
（3201）, the presser feet limiting plate（30）The pressure foot at place（27）Side is provided with the adaptation tooth head（3201）The chute of motion
（2703）, and presser feet limiting plate（30）By the tooth head（3201）It is limited in chute（2703）It is interior.
6. differential feed computer flat sewing machine according to claim 1, it is characterised in that the differential feed computer flat sewing machine bag
Include line ball fixture（5）, line ball fixture（5）Including fixed plate（501）, installing plate（502）, lower limiting board（510）, upper limit plate
（511）, pressing plate（503）, the installing plate（502）One end and the fixed plate（501）One end is hinged for plane, fixed plate
（501）Provided with the body（1）The connecting hole being fixedly connected（5011）, the installing plate（502）The other end is fixedly connected down
Limiting plate（510）, the pressing plate（503）With installing plate（502）It is hinged in upset, pressing plate（503）One end be fixedly connected with it is described
Lower limiting board（510）Corresponding upper limit plate（511）, and upper limit plate（511）With lower limiting board（510）Shape between the two during abutting
Into the material folding mouthful of closing（512）, pressing plate（503）The other end is connected to overturn the first spacing caging bolt（504）, and connect
First locking nut（505）；Pressing plate（503）Middle part and installing plate（502）Between back-moving spring is set（506）, the back-moving spring
（506）To pressing plate（503）Applying one makes it overturn supreme limiting plate（511）With lower limiting board（510）The active force of separation, pressure
Plate（503）Correspondence back-moving spring（506）Position be threadedly coupled for back-moving spring（506）The second spacing spacing spiral shell of socket
Bolt（507）, the second caging bolt（507）Connect the second locking nut（508）；The installing plate（502）Side is fixedly connected with court
The shell fragment of the side surface direction Flexible change（509）, and shell fragment（509）Provided with when the upper limit plate（511）With lower limiting board
（510）Offset to form material folding mouthful（512）When to pressing plate（503）Carry out the spacing rib of upset（5091）, when stirring shell fragment（509）
Release the rib（5091）To pressing plate（503）It is spacing when, the pressing plate（503）In the back-moving spring（506）Under effect
Automatic turning, the material folding mouthful（512）Open.
7. differential feed computer flat sewing machine according to claim 6, it is characterised in that the upper limit plate（23）, lower limit
Plate（23）It is bolted respectively between corresponding pressing plate, installing plate, and upper limit plate（23）, lower limiting board（23）It is all provided with
There is the bar shaped slide opening being slidably matched with corresponding bolt, when upper limit plate（23）, lower limiting board（23）Slided along bar shaped slide opening direction
During regulation, the material folding mouthful size changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710441899.4A CN107142621A (en) | 2017-06-13 | 2017-06-13 | Differential feed computer flat sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710441899.4A CN107142621A (en) | 2017-06-13 | 2017-06-13 | Differential feed computer flat sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107142621A true CN107142621A (en) | 2017-09-08 |
Family
ID=59782826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710441899.4A Pending CN107142621A (en) | 2017-06-13 | 2017-06-13 | Differential feed computer flat sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107142621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030915A (en) * | 2019-03-21 | 2019-07-19 | 杰克缝纫机股份有限公司 | Differential amount detecting device and method |
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Application publication date: 20170908 |