CN204959275U - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN204959275U CN204959275U CN201520728595.2U CN201520728595U CN204959275U CN 204959275 U CN204959275 U CN 204959275U CN 201520728595 U CN201520728595 U CN 201520728595U CN 204959275 U CN204959275 U CN 204959275U
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- China
- Prior art keywords
- knife
- drive plate
- base plate
- stationary knife
- sewing machines
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009958 sewing Methods 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000009966 trimming Methods 0.000 abstract description 16
- 239000004744 fabric Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000001105 regulatory Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 210000002421 Cell Wall Anatomy 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Abstract
The utility model provides a sewing machine belongs to sewing machine technical field. It has solved the longer problem of the end of a thread on the cloth of remaining behind the current sewing machine trimming. This sewing machine, including bottom plate and casing, be equipped with the eedle on the casing, the bottom plate internal rotation is connected with down axle and drive shaft, lower tip rotates to be connected with and moves the knife rest, move to have linked firmly on the knife rest and move the sword, the drive shaft with move the knife rest transmission and be connected and can drive and move the knife rest and rotate, sliding connection has the stationary knife on the bottom plate, it has the drive plate still to articulate on the bottom plate, circumference has the spigot surface on moving the border of knife rest, be connected with the tensioning piece on the drive plate, distance between a spigot surface and the lower axial lead is reduced to the other end by one end gradually, when moving that the knife rest rotates and making when moving the sword and removing to the stationary knife direction, the drive plate can make the stationary knife be close to the eedle. This sewing machine can make the end of a thread after cutting shorter, improves the trimming quality.
Description
Technical field
The utility model belongs to sewing machine technique field, relates to a kind of Sewing machines.
Background technology
Major part in industrial sewing machines all belongs to general Sewing machines, and comprising flat seam machine, chain seam machine, quilting machines, overlock machine and flat seaming machine etc., and the utilization rate of flat seam machine is the highest.Along with the continuous adjustment of market and consumption structure, the industrial sewing machine of middle low speed can not meet Production requirement, and Sewing machines is just towards high speed, seriation future development, and electronics, computer technology are widely used on Sewing machines.Sewing machines internal structure is complicated, comprises presser foot lifting device, thread cutting mechanism etc.
As Chinese invention patent application, (application number: the cutting facility 201010602851.5) disclosing a kind of Sewing machines, comprises base plate, stationary knife and moving knife, transmission mechanism, driving mechanism and controlling organization.Moving knife component and stationary knife assembly are positioned at immediately below the eedle of Sewing machines, and moving knife can do relative shearing motion with stationary knife, realize trimming function, and transmission mechanism and driving mechanism are installed in sewing machine table basifacial, immediately below the eedle being positioned at Sewing machines.This cutting facility can realize the cutting to suture, but it is motionless during stationary knife when moving knife action, in order to avoid in the process of making, suture cuts off by stationary knife, usual stationary knife needs to maintain a certain distance with eedle, this distance is roughly 3 to 4 millimeters, and when needing trimming, moving knife moves to stationary knife, and cuts off suture at stationary knife place, and suture scissors is had no progeny, the end of a thread is positioned at stationary knife place, and the end of a thread therefore remained on cloth is longer.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of Sewing machines, and this Sewing machines can make the end of a thread after cutting off shorter, improves trimming quality.
The purpose of this utility model realizes by following technical proposal: a kind of Sewing machines, comprise base plate and be connected in the casing on base plate, described casing is provided with eedle, lower shaft and driving shaft is rotatably connected in described base plate, it is characterized in that, the end of described lower shaft is rotatably connected to the movable knife rack of plate-like, described movable knife rack is fixed with moving knife, described driving shaft and movable knife rack are in transmission connection and movable knife rack can be driven to rotate, described base plate slidably connects stationary knife, and the cutting edge of stationary knife is relative with the cutting edge of moving knife, above-mentioned eedle can stretch into base plate and between moving knife and stationary knife, the drive plate that stationary knife can be driven to slide when described base plate being also hinged with swing, on the edge of described movable knife rack, circumference has the spigot surface of arc, described drive plate is connected with drive plate can be made to be resisted against tensioner on the spigot surface of movable knife rack, distance between described spigot surface and lower shaft axial line is reduced to the other end gradually by one end, when movable knife rack rotates and makes moving knife move to stationary knife direction, above-mentioned drive plate can be resisted against the nearer one end of spigot surface distance lower shaft axial line and make stationary knife near eedle.
In the process of making, eedle is up and down reciprocatingly elevated, suture is located in the pinprick of eedle head, when not trimming, moving knife is away from eedle, under the effect of tensioner, drive plate is then resisted against spigot surface distance lower shaft axial line one end far away, now drive plate and lower shaft axial line is distant, therefore stationary knife is also away from eedle, when needs trimming, driving shaft drives movable knife rack to rotate, moving knife is moved to stationary knife direction, drive plate slides also gradually near eedle along spigot surface, suture is cut off in the position near eedle by moving knife and stationary knife, make to remain in the end of a thread on sewing cloth shorter, trimming quality is higher.
In above-mentioned Sewing machines, described drive plate is strip, and one end of drive plate by hinge on base plate, the long edge of described drive plate has the butting section of protrusion, and described butting section and movable knife rack lean.Butting section make not trimming time drive plate and movable knife rack maintain a certain distance, the indirectly little diameter changing movable knife rack.
In above-mentioned Sewing machines, described tensioner comprises torsion spring, and described torsion spring set is located on bearing pin, and one end of torsion spring is connected on base plate, and the other end is pressed on drive plate.Drive plate is resisted against on movable knife rack by the torsion of torsion spring, structure is comparatively simply compact, certainly in actual application, tensioner also can adopt has flexible miscellaneous part, as spring, one end of spring is acted on base plate, and the other end acts on drive plate, has the effect be pressed on by drive plate on movable knife rack equally.
In above-mentioned Sewing machines, described stationary knife is connected in base plate by skid, and described slide block side vertically has trundle, and the free end sidewall of described drive plate offers bar-shaped trough along its length, and described trundle sliding plug is in bar-shaped trough.Namely stationary knife is connected on slide block, be connected with base plate by slide block, when drive plate swings, drive plate and trundle distance can change, therefore trundle is plugged in the bar-shaped trough of drive plate, and namely drive plate promotes trundle by swinging, and slide block is moved, certain trundle can slide in bar-shaped trough, avoids stuck.
In above-mentioned Sewing machines, in described base plate, be fixed with holder, described holder side offers chute, the bottom surface of described chute is vertically fixed with lead, described slide block offers gathering sill, and described skid is connected in chute, and lead sliding plug is in gathering sill.Holder is fixed by screws on plate inner wall, the cross section of chute and slide block is all rectangular, namely the side of slide block can recline mutually with chute cell wall, slide block is moved more stable, and then make the action of stationary knife more stable, and gathering sill coordinates except having guide effect with lead, the two ends of gathering sill also have position-limiting action, ensure that slide block has the stroke of a setting.
In above-mentioned Sewing machines, described slide block end face offers inserting groove, and described stationary knife is strip, and one end of stationary knife is cutting edge, and other end sliding plug is in inserting groove and pass through screw lock.Namely on the side of slide block, offer screw, when screw unclamps, stationary knife can stretch in inserting groove, and distance when regulating moving knife and stationary knife to be failure to actuate, namely regulates cutter amount, and regulate tightening screw after putting in place, the end of screw can be pressed on stationary knife side.
In above-mentioned Sewing machines, described moving knife is positioned at the side of lower shaft, and described movable knife rack is hinged with cutter shaft connecting rod at the opposite side of lower shaft, and the end of described driving shaft is fixed with driving crank, and free end and the driving crank of described cutter shaft connecting rod are hinged.Driving shaft rotarily drives driving crank and swings, and the edge of movable knife rack has the radial articulated jib protruded, this articulated jib and moving knife are lived apart the both sides of lower shaft, cutter shaft connecting rod and articulated jib are hinged, the swing of driving crank can make cutter shaft connecting rod carry out swinging the compound motion with movement, and then driving movable knife rack to rotate, moving knife and articulated jib move in the opposite direction, and namely moving knife moves to stationary knife direction.
Compared with prior art, this Sewing machines has the following advantages:
1, due to moving knife move to stationary knife direction time, stationary knife can be made to move for drive plate and near eedle, therefore suture can be cut off in the position of close eedle with stationary knife by moving knife, and the end of a thread therefore remained on sewing cloth is shorter, and trimming quality is higher.
2, because stationary knife is by being driven by movable knife rack after drive plate, therefore, it is possible to ensure the synchronism of moving knife and stationary knife action, trimming quality is improved.
3, because stationary knife sliding plug is in the inserting groove of slide block, when screw unclamps, stationary knife can stretch in inserting groove, and distance when regulating moving knife and stationary knife to be failure to actuate, namely regulates cutter amount, improves trimming quality.
Accompanying drawing explanation
Fig. 1 is the perspective view of this Sewing machines.
Fig. 2 is the perspective view at base plate place.
Fig. 3 is the sectional perspective structural representation of Sewing machines inside.
Fig. 4 is the structure front view of movable knife rack.
Fig. 5 is the schematic enlarged-scale view at A place in Fig. 2.
In figure, 1, base plate; 11, lower shaft; 12, driving shaft; 13, driving crank; 14, holder; 141, chute; 142, lead; 2, casing; 21, eedle; 3, movable knife rack; 31, moving knife; 32, cutter shaft connecting rod; 33, spigot surface; 4, drive plate; 41, butting section; 42, bearing pin; 43, torsion spring; 44, bar-shaped trough; 5, stationary knife; 51, slide block; 511, inserting groove; 512, gathering sill; 52, trundle.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of Sewing machines, the casing 2 comprising base plate 1 and be connected on base plate 1, casing 2 is provided with eedle 21, in the process of making, eedle 21 is up and down reciprocatingly elevated, suture is located in the pinprick of eedle 21 head, lower shaft 11 and driving shaft 12 is rotatably connected in base plate 1, the end of lower shaft 11 is rotatably connected to the movable knife rack 3 of plate-like, movable knife rack 3 is fixed with moving knife 31, moving knife 31 is positioned at the side of lower shaft 11, movable knife rack 3 is hinged with cutter shaft connecting rod 32 at the opposite side of lower shaft 11, the end of driving shaft 12 is fixed with driving crank 13, free end and the driving crank 13 of cutter shaft connecting rod 32 are hinged, driving shaft 12 rotarily drives driving crank 13 and swings, and the edge of movable knife rack 3 has the radial articulated jib protruded, this articulated jib and moving knife 31 are lived apart the both sides of lower shaft 11, cutter shaft connecting rod 32 and articulated jib are hinged, the swing of driving crank 13 can make cutter shaft connecting rod 32 carry out swinging the compound motion with movement, and then drive movable knife rack 3 to rotate, moving knife 31 and articulated jib move in the opposite direction, base plate 1 slidably connects stationary knife 5, and the cutting edge of stationary knife 5 is relative with the cutting edge of moving knife 31, eedle 21 can stretch into base plate 1 and between moving knife 31 and stationary knife 5, base plate 1 is also hinged with drive plate 4, stationary knife 5 can be driven to slide when drive plate 4 swings.On the edge of movable knife rack 3, circumference has the spigot surface 33 of arc, drive plate 4 is connected with tensioner, tensioner can make drive plate 4 be resisted against on spigot surface 33, distance between spigot surface 33 and lower shaft 11 axial line is reduced to the other end gradually by one end, when movable knife rack 3 rotates and makes moving knife 31 move to stationary knife 5 direction, drive plate 4 can be resisted against spigot surface 33 one end nearer apart from lower shaft 11 axial line and make stationary knife 5 near eedle 21.Certainly when not trimming, moving knife 31 is away from eedle 21, under the effect of tensioner, drive plate 4 is then resisted against on the spigot surface 33 of movable knife rack 3, and therefore stationary knife 5 is also away from eedle 21, when needs trimming, driving shaft 12 drives movable knife rack 3 to rotate, moving knife 31 is moved to stationary knife 5 direction, and drive plate 4 slides also gradually near eedle 21 along spigot surface 33, and suture is cut off in the position near eedle 21 with stationary knife 5 by moving knife 31, make to remain in the end of a thread on sewing cloth shorter, trimming quality is higher.
Specifically, shown in composition graphs 4, Fig. 5, drive plate 4 is in strip, and one end of drive plate 4 is hinged on base plate 1 by bearing pin 42, the long edge of drive plate 4 has the butting section 41 of protrusion, butting section 41 and movable knife rack 3 lean, butting section 41 make not trimming time drive plate 4 maintain a certain distance with movable knife rack 3, the indirectly little diameter having changed movable knife rack 3.Tensioner comprises torsion spring 43, torsion spring 43 is set on bearing pin 42, and one end of torsion spring 43 is connected on base plate 1, and the other end is pressed on drive plate 4, drive plate 4 is resisted against on movable knife rack 3 by the torsion of torsion spring 43, structure is comparatively simply compact, and certainly in actual application, tensioner also can adopt has flexible miscellaneous part, as spring, one end of spring is acted on base plate 1, and the other end acts on drive plate 4, has the effect be pressed on by drive plate 4 on movable knife rack 3 equally.
Holder 14 is fixed with in base plate 1, side offers chute 141 with holder 14, the bottom surface of chute 141 is vertically fixed with lead 142, slide block 51 offers gathering sill 512, slide block 51 is slidably connected in chute 141, and lead 142 sliding plug is in gathering sill 512, slide block 51 end face offers inserting groove 511, stationary knife 5 is in strip, one end of stationary knife 5 is cutting edge, other end sliding plug is in inserting groove 511 and pass through screw lock, namely on the side of slide block 51, screw is offered, when screw unclamps, stationary knife 5 can stretch in inserting groove 511, distance when regulating moving knife 31 and stationary knife 5 to be failure to actuate, namely cutter amount is regulated, tightening screw after adjustment puts in place, the end of screw can be pressed on stationary knife 5 side.Holder 14 is fixed by screws on base plate 1 inwall, the cross section of chute 141 and slide block 51 is all rectangular, namely the side of slide block 51 can recline mutually with chute 141 cell wall, slide block 51 is moved more stable, and then make the action of stationary knife 5 more stable, and gathering sill 512 coordinates except having guide effect with lead 142, the two ends of gathering sill 512 also have position-limiting action, ensure that slide block 51 has the stroke of a setting.Side vertically has trundle 52 to slide block 51, the free end sidewall of drive plate 4 offers bar-shaped trough 44 along its length, trundle 52 sliding plug is in bar-shaped trough 44, when drive plate 4 swings, drive plate 4 and trundle 52 are apart from changing, and therefore trundle 52 is plugged in the bar-shaped trough 44 of drive plate 4, namely drive plate 4 promotes trundle 52 by swinging, slide block 51 is moved, and certain trundle 52 can slide in bar-shaped trough 44, avoids stuck.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as base plate 1, lower shaft 11, driving shaft 12 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (7)
1. a Sewing machines, comprise base plate (1) and be connected in the casing (2) on base plate (1), described casing (2) is provided with eedle (21), lower shaft (11) and driving shaft (12) is rotatably connected in described base plate (1), it is characterized in that, the end of described lower shaft (11) is rotatably connected to the movable knife rack (3) of plate-like, described movable knife rack (3) is fixed with moving knife (31), described driving shaft (12) and movable knife rack (3) are in transmission connection and movable knife rack (3) can be driven to rotate, described base plate (1) slidably connects stationary knife (5), and the cutting edge of stationary knife (5) is relative with the cutting edge of moving knife (31), above-mentioned eedle (21) can stretch into base plate (1) and be positioned between moving knife (31) and stationary knife (5), the drive plate (4) that stationary knife (5) slides can be driven when described base plate (1) being also hinged with swing, on the edge of described movable knife rack (3), circumference has the spigot surface (34) of arc, described drive plate (4) is connected with drive plate (4) can be made to be resisted against tensioner on the spigot surface (34) of movable knife rack (3), distance between described spigot surface (34) and lower shaft (11) axial line is reduced to the other end gradually by one end, when movable knife rack (3) rotates and makes moving knife (31) move to stationary knife (5) direction, above-mentioned drive plate (4) can be resisted against the nearer one end of spigot surface (34) distance lower shaft (11) axial line and make stationary knife (5) near eedle (21).
2. Sewing machines according to claim 1, it is characterized in that, described drive plate (4) is in strip, and one end of drive plate (4) is hinged on base plate (1) by bearing pin (42), the long edge of described drive plate (4) has the butting section (41) of protrusion, and described butting section (41) and movable knife rack (3) lean.
3. Sewing machines according to claim 2, it is characterized in that, described tensioner comprises torsion spring (43), described torsion spring (43) is set on bearing pin (42), and one end of torsion spring (43) is connected on base plate (1), the other end is pressed on drive plate (4).
4. the Sewing machines according to claim 1 or 2 or 3, it is characterized in that, described stationary knife (5) is slidably connected in base plate (1) by slide block (51), described slide block (51) side vertically has trundle (52), the free end sidewall of described drive plate (4) offers along its length bar-shaped trough (44), described trundle (52) sliding plug is in bar-shaped trough (44).
5. Sewing machines according to claim 4, it is characterized in that, holder (14) is fixed with in described base plate (1), described holder (14) side offers chute (141), the bottom surface of described chute (141) is vertically fixed with lead (142), described slide block (51) offers gathering sill (512), described slide block (51) is slidably connected in chute (141), and lead (142) sliding plug is in gathering sill (512).
6. Sewing machines according to claim 4, it is characterized in that, described slide block (51) end face offers inserting groove (511), described stationary knife (5) is in strip, one end of stationary knife (5) is cutting edge, and other end sliding plug is in inserting groove (511) and pass through screw lock.
7. the Sewing machines according to claim 1 or 2 or 3, it is characterized in that, described moving knife (31) is positioned at the side of lower shaft (11), described movable knife rack (3) is hinged with cutter shaft connecting rod (32) at the opposite side of lower shaft (11), the end of described driving shaft (12) is fixed with driving crank (13), and free end and the driving crank (13) of described cutter shaft connecting rod (32) are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728595.2U CN204959275U (en) | 2015-09-19 | 2015-09-19 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728595.2U CN204959275U (en) | 2015-09-19 | 2015-09-19 | Sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204959275U true CN204959275U (en) | 2016-01-13 |
Family
ID=55054350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520728595.2U Withdrawn - After Issue CN204959275U (en) | 2015-09-19 | 2015-09-19 | Sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204959275U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113150A (en) * | 2015-09-19 | 2015-12-02 | 浙江中捷缝纫科技有限公司 | Sewing machine |
| CN105133215A (en) * | 2015-09-19 | 2015-12-09 | 浙江中捷缝纫科技有限公司 | Thread cutting mechanism of sewing machine |
-
2015
- 2015-09-19 CN CN201520728595.2U patent/CN204959275U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113150A (en) * | 2015-09-19 | 2015-12-02 | 浙江中捷缝纫科技有限公司 | Sewing machine |
| CN105133215A (en) * | 2015-09-19 | 2015-12-09 | 浙江中捷缝纫科技有限公司 | Thread cutting mechanism of sewing machine |
| CN105113150B (en) * | 2015-09-19 | 2017-06-23 | 浙江中捷缝纫科技有限公司 | A kind of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160914 Address after: 317604 Taizhou Province, Yuhuan County, Lantau Island Road, Hing Hong Kong Road, No. 198 Patentee after: Zhejiang Zoje Sewing Technology Co., Ltd. Patentee after: Zhejiang Zhongyi Sewing Machine Co Ltd Patentee after: Zhejiang Besserman sewing machine Co., Ltd. Address before: 317600, Taizhou, Zhejiang province Yuhuan County barley island Street Hing Tung Road, No. 198 Patentee before: Zhejiang Zoje Sewing Technology Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160113 Effective date of abandoning: 20170623 |