CN204491176U - A kind of presser foot lifting device of Sewing machines - Google Patents

A kind of presser foot lifting device of Sewing machines Download PDF

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Publication number
CN204491176U
CN204491176U CN201420770427.5U CN201420770427U CN204491176U CN 204491176 U CN204491176 U CN 204491176U CN 201420770427 U CN201420770427 U CN 201420770427U CN 204491176 U CN204491176 U CN 204491176U
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CN
China
Prior art keywords
connecting rod
presser foot
lifting device
sewing machines
foot lifting
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Expired - Fee Related
Application number
CN201420770427.5U
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Chinese (zh)
Inventor
阮国富
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Taizhou Plain Ding Xin Sewing Machines Co Ltd
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Taizhou Plain Ding Xin Sewing Machines Co Ltd
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Priority to CN201420770427.5U priority Critical patent/CN204491176U/en
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Publication of CN204491176U publication Critical patent/CN204491176U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model provides a kind of presser foot lifting device of Sewing machines, belongs to sewing-machine equipment technical field.It solve existing presser foot lifting device maneuverability pattern single, the problem that operation is loaded down with trivial details.The presser foot lifting device of this Sewing machines, Sewing machines comprises casing, presser foot lifting device comprises power transmission shaft, connecting rod one and connecting rod two, drive axis is connected on the rear end sidewall of casing, one end of connecting rod one is vertically connected in one end of power transmission shaft, and the other end and the connecting rod two of connecting rod one are rotationally connected, and the front end of casing slidably connects guide post, be connected with transmission mechanism between the end of connecting rod two and guide post upper end, casing is provided with driving mechanism.The presser foot lifting device of this Sewing machines can realize the electronic of presser foot lifter and manual actuation, and Stability Analysis of Structures.

Description

A kind of presser foot lifting device of Sewing machines
Technical field
The utility model belongs to sewing-machine equipment technical field, relates to a kind of presser foot lifting device of Sewing machines.
Background technology
One or more sewing thread used by Sewing machines, and sewing is formed one or more stitchings, makes the machine that one or more layers sewing interweaves or unites by a seam.Sewing function makes the goods such as the fabrics such as cotton, fiber crops, silk, hair, artificial fibre and leather, plastics, paper, and the stitching neat appearance of stitching out, firmly smooth, sewing velocity is fast, easy to use.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.The classification of Sewing machines is according to the purposes of Sewing machines, domestic sewing machine, industrial sewing machines can be divided into and be positioned at service trade's Sewing machines therebetween, major part in industrial sewing machines all belongs to general Sewing machines, comprise flat seam machine, chain seam machine, quilting machines, overlock machine and flat seaming machine etc., in the use procedure of Sewing machines, for increasing the operating efficiency of operating personnel, reduce labour intensity, the use of automatic needle-foot-lifting device is also more and more frequent.But Sewing machines at present on the market needs shutdown carry out presser foot lifter operation or manually carry out usually, and maneuverability pattern is single, operation is loaded down with trivial details and affect operating efficiency.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of presser foot lifting device of Sewing machines, and the presser foot lifting device of this Sewing machines can realize the electronic of presser foot lifter and manual actuation, and Stability Analysis of Structures.
The purpose of this utility model realizes by following technical proposal: a kind of presser foot lifting device of Sewing machines, Sewing machines comprises casing, it is characterized in that, described presser foot lifting device comprises power transmission shaft, connecting rod one and connecting rod two, described drive axis is connected on the rear end sidewall of casing, one end of above-mentioned connecting rod one is vertically connected in one end of power transmission shaft, the other end and the connecting rod two of connecting rod one are rotationally connected, and can slide in setting stroke along connecting rod two length direction in the end of connecting rod one, the front end of described casing also vertically slidably connects guide post, the lower end of described guide post is connected with presser feet, the transmission mechanism that guide post can be driven to move up and down when connecting rod two moves back and forth is connected with between the end of described connecting rod two and guide post upper end, described casing is provided with the driving mechanism that can drive power transmission shaft reciprocating rotation.
Driving mechanism can drive power transmission shaft reciprocating rotation in certain angle, the rotation of power transmission shaft can drivening rod one reciprocally swinging, the swing of connecting rod one can drive link two move back and forth, connecting rod two can drive guide post to move back and forth up and down by transmission mechanism after moving simultaneously, namely lifting or depressing of presser foot lifter is realized, this structural stability is higher, simultaneously owing to can slide along connecting rod two length direction the end of connecting rod one, namely staff can manually make connecting rod two move, connecting rod one can not play interference to the movement of connecting rod two, namely manually lifting and depressing of presser foot lifter is realized, maneuverability pattern is various.
In the presser foot lifting device of above-mentioned Sewing machines, described driving mechanism comprises the stepper motor be connected on casing, the output shaft of described stepper motor is fixed with driving gear, described casing is also rotatably connected to driven gear, above-mentioned driving gear is meshed with driven gear, the side of described driven gear is vertically fixed with bearing pin, the axial line of this bearing pin does not overlap with the axial line of driven gear, the end vertical of described power transmission shaft is fixed with kinematic link, the axis of above-mentioned bearing pin and the length direction of kinematic link perpendicular, described kinematic link offers chute along its length, above-mentioned pin slide is plugged in chute.Driving stepper motor driving gear rotates, namely driven gear rotates with driving gear, when driving gear rotates, bearing pin on side moves around driven gear axle center line, this pin slide is plugged in chute simultaneously, therefore, it is possible to drive kinematic link to swing, namely realize the reciprocating rotation of power transmission shaft, transmission stability is good.
In the presser foot lifting device of above-mentioned Sewing machines, described connecting rod two offers gathering sill along its length, the sidewall of described connecting rod one is vertically fixed with connecting pin, this connecting pin sliding plug is in gathering sill.Both being rotationally connected of connecting rod one and connecting rod two had been achieved, can relative sliding simultaneously, namely when manual mobile link two, connecting rod one can not produce connecting rod two interferes, and during driving stepper motor, the connecting pin on connecting rod one move to gathering sill end and with cell wall against time can move by drivening rod one.
In the presser foot lifting device of above-mentioned Sewing machines, described transmission mechanism comprises front lever and lifter plate, one end of described front lever is hinged on casing, the other end has connecting portion one and connecting portion two respectively, one end and the connecting portion one of described connecting rod two are hinged, upper end and the connecting portion two of described lifter plate are hinged, and lower end edge horizontal direction is slidably connected at the upper end of guide post, and described connecting portion one is positioned at the top of connecting portion two.Pulling force or thrust can be produced to connecting portion one, the swing of lever before namely realizing, because front lever lower end edge horizontal direction is slidably connected at the upper end of guide post, because the reciprocally swinging of lever before this can drive guide post to move back and forth up and down when connecting rod two moves.
In the presser foot lifting device of above-mentioned Sewing machines, described lifter plate is L-shaped, there is the side plate vertically arranged and a horizontally disposed side plate, above-mentioned connecting portion two be vertically arranged on side plate and be hinged, offer link slot being horizontally set on side plate upper side, the length direction of this link slot and connecting axle are axially perpendicular, and the upper end sidewall of described guide post is fixed with a slide block, and described skid is connected in link slot.During due to front lever swing, the height and position of lifter plate and horizontal level all can change, and are therefore coordinated with link slot by slide block, and guide post can be moved up and down.
In the presser foot lifting device of above-mentioned Sewing machines, described stepper motor comprises a handwheel, and this handwheel is connected mutually with the output shaft of stepper motor.Namely hand rotation handwheel also can the output shaft rotation of Driving Stepping Motor, therefore also can lifting or depressing by which manual actuation presser foot lifter, namely this presser foot lifting device can pass through handwheel manual actuation, and also directly can manually pull connecting rod two, type of drive is various.
In the presser foot lifting device of above-mentioned Sewing machines, described casing is fixed with the motor cabinet of tabular, this motor cabinet parallels with chassis sidewall and has gap between the two, the side that described motor cabinet is relative with casing offers the mounting groove of two circles, above-mentioned driving gear and driven gear are rotatably connected in two mounting grooves respectively, and described stepper motor is fixed on the another side of motor cabinet.This Connection Block is connected on casing by welding, can process in original cabinet parts, saves to open to take cost, and driving gear and driven gear are arranged in mounting groove, and structure is compacter, and stability is better.
In the presser foot lifting device of above-mentioned Sewing machines, also comprise the limiting plate of a bar shaped, one end of this limiting plate offers bar hole, and wears bar hole by screw and be connected on the sidewall of kinematic link, embeds in chute after other end bending.After unclamping screw, limiting plate can move along bar hole direction, namely regulates the effective travel of chute, thus can regulate the full swing angle of kinematic link, and it is by finally realizing the adjustment of presser foot lifter raising height after a series of transmission, applicability is stronger.
In the presser foot lifting device of above-mentioned Sewing machines, be fixed with ladder axle sleeve in described casing, above-mentioned drive axis is connected in ladder axle sleeve.Make transmission shaft driven stability better.
Compared with prior art, the presser foot lifting device of this Sewing machines has the following advantages:
1, because this presser foot lifting device both can pass through driving stepper motor, simultaneously owing to can slide along connecting rod two length direction the end of connecting rod one, namely staff can manually make connecting rod two move, and also can pass through handwheel manual actuation, maneuverability pattern is various, and structural stability is higher.
2, because kinematic link is provided with limiting plate, after unclamping screw, limiting plate can move along bar hole direction, namely the effective travel of chute is regulated, thus the full swing angle of kinematic link can be regulated, it is by finally realizing the adjustment of presser foot lifter raising height after a series of transmission, applicability is stronger.
Accompanying drawing explanation
Fig. 1 is the structural representation of the presser foot lifting device of this Sewing machines.
In figure, 1, power transmission shaft; 11, ladder axle sleeve; 2, connecting rod one; 21, connecting pin; 3, connecting rod two; 31, gathering sill; 4, guide post; 41, presser foot lifter; 42, slide block; 5, driving mechanism; 51, stepper motor; 511, handwheel; 52, driving gear; 53, driven gear; 531, bearing pin; 54, kinematic link; 541, chute; 542, limiting plate; 543, bar hole; 544, screw; 6, transmission mechanism; 61, front lever; 611, connecting portion one; 612, connecting portion two; 62, lifter plate; 621, link slot; 7, motor cabinet; 71, mounting groove.
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 shown in Figure 1, a kind of presser foot lifting device of Sewing machines, Sewing machines comprises casing, presser foot lifting device comprises power transmission shaft 1, connecting rod 1 and connecting rod 23, power transmission shaft 1 is rotatably connected on the rear end sidewall of casing, one end of connecting rod 1 is vertically connected in one end of power transmission shaft 1, the other end and the connecting rod 23 of connecting rod 1 are rotationally connected, and can slide in setting stroke along connecting rod 23 length direction in the end of connecting rod 1, the front end of casing also vertically slidably connects guide post 4, the lower end of guide post 4 is connected with presser feet, the transmission mechanism 6 that guide post 4 can be driven to move up and down when connecting rod 23 moves back and forth is connected with between the end of connecting rod 23 and guide post 4 upper end, casing is provided with the driving mechanism 5 that can drive power transmission shaft 1 reciprocating rotation.Driving mechanism 5 can drive power transmission shaft 1 reciprocating rotation in certain angle, the rotation of power transmission shaft 1 can drivening rod 1 reciprocally swinging, the swing of connecting rod 1 can drive link 23 move back and forth, connecting rod 23 can drive guide post 4 to move back and forth up and down by transmission mechanism 6 after moving simultaneously, namely lifting or depressing of presser foot lifter 41 is realized, this structural stability is higher, simultaneously owing to can slide along connecting rod 23 length direction the end of connecting rod 1, namely staff can manually make connecting rod 23 move, connecting rod 1 can not play interference to the movement of connecting rod 23, namely manually lifting and depressing of presser foot lifter 41 is realized, maneuverability pattern is various.
Specifically, driving mechanism 5 comprises the stepper motor 51 be connected on casing, the output shaft of stepper motor 51 is fixed with driving gear 52, casing is also rotatably connected to driven gear 53, driving gear 52 is meshed with driven gear 53, the side of driven gear 53 is vertically fixed with bearing pin 531, the axial line of this bearing pin 531 does not overlap with the axial line of driven gear 53, the end vertical of power transmission shaft 1 is fixed with kinematic link 54, the axis of bearing pin 531 and the length direction of kinematic link 54 perpendicular, kinematic link 54 offers chute 541 along its length, bearing pin 531 sliding plug is in chute 541, stepper motor 51 drives driving gear 52 to rotate, namely driven gear 53 rotates with driving gear 52, when driving gear 52 rotates, bearing pin 531 on side moves around driven gear 53 axial line, this bearing pin 531 sliding plug is in chute 541 simultaneously, therefore, it is possible to drive kinematic link 54 to swing, namely the reciprocating rotation of power transmission shaft 1 is realized, transmission stability is good.Stepper motor 51 comprises a handwheel 511, this handwheel 511 is connected mutually with the output shaft of stepper motor 51, namely hand rotation handwheel 511 also can the output shaft rotation of Driving Stepping Motor 51, therefore also can lifting or depressing by which manual actuation presser foot lifter 41, namely this presser foot lifting device can pass through handwheel 511 manual actuation, also directly can manually pull connecting rod 23, type of drive is various.Casing is fixed with the motor cabinet 7 of tabular, this motor cabinet 7 parallels with chassis sidewall and has gap between the two, the side that motor cabinet 7 is relative with casing offers the mounting groove 71 of two circles, driving gear 52 and driven gear 53 are rotatably connected in two mounting grooves 71 respectively, stepper motor 51 is fixed on the another side of motor cabinet 7, this Connection Block is connected on casing by welding, can process in original cabinet parts, saving is opened and is taken cost, driving gear 52 and driven gear 53 are arranged in mounting groove 71, structure is compacter, and stability is better.This presser foot lifting device also comprises the limiting plate 542 of a bar shaped, one end of this limiting plate 542 offers bar hole 543, and wear bar hole 543 by screw 544 and be connected on the sidewall of kinematic link 54, embed after other end bending in chute 541, after unclamping screw 544, limiting plate 542 can move along bar hole 543 direction, namely the effective travel of chute 541 is regulated, thus the full swing angle of kinematic link 54 can be regulated, it is by finally realizing the adjustment of presser foot lifter 41 raising height after a series of transmission, applicability is stronger.Connecting rod 23 offers gathering sill 31 along its length, the sidewall of connecting rod 1 is vertically fixed with connecting pin 21, this connecting pin 21 sliding plug is in gathering sill 31, both being rotationally connected of connecting rod 1 and connecting rod 23 had been achieved, can relative sliding simultaneously, namely when manual mobile link 23, connecting rod 1 can not produce connecting rod 23 interferes, and stepper motor 51 is when driving, the connecting pin 21 on connecting rod 1 move to gathering sill 31 end and with cell wall against time can move by drivening rod 1.Be fixed with ladder axle sleeve 11 in casing, power transmission shaft 1 is rotatably connected in ladder axle sleeve 11, makes power transmission shaft 1 transmission stability better.
Transmission mechanism 6 comprises front lever 61 and lifter plate 62, one end of front lever 61 is hinged on casing, the other end has connecting portion 1 and connecting portion 2 612 respectively, one end and the connecting portion 1 of connecting rod 23 are hinged, upper end and the connecting portion 2 612 of lifter plate 62 are hinged, lower end edge horizontal direction is slidably connected at the upper end of guide post 4, connecting portion 1 is positioned at the top of connecting portion 2 612, pulling force or thrust can be produced to connecting portion 1 when connecting rod 23 moves, namely the swing of lever 61 before realizing, because front lever 61 lower end edge horizontal direction is slidably connected at the upper end of guide post 4, because the reciprocally swinging of lever 61 before this can drive guide post 4 to move back and forth up and down.Lifter plate 62 is L-shaped, there is the side plate vertically arranged and a horizontally disposed side plate, connecting portion 2 612 be vertically arranged on side plate and be hinged, offer link slot 621 being horizontally set on side plate upper side, the length direction of this link slot 621 and connecting axle are axially perpendicular, the upper end sidewall of guide post 4 is fixed with a slide block 42, slide block 42 is slidably connected in link slot 621, due to front lever 61 swing time, the height and position of lifter plate 62 and horizontal level all can change, therefore coordinated with link slot 621 by slide block 42, guide post 4 can be moved up and down.

Claims (9)

1. the presser foot lifting device of a Sewing machines, Sewing machines comprises casing, it is characterized in that, described presser foot lifting device comprises power transmission shaft (1), connecting rod one (2) and connecting rod two (3), described power transmission shaft (1) is rotatably connected on the rear end sidewall of casing, one end of above-mentioned connecting rod one (2) is vertically connected in one end of power transmission shaft (1), the other end and the connecting rod two (3) of connecting rod one (2) are rotationally connected, and can slide in setting stroke along connecting rod two (3) length direction in the end of connecting rod one (2), the front end of described casing also vertically slidably connects guide post (4), the lower end of described guide post (4) is connected with presser feet, the transmission mechanism (6) that guide post (4) can be driven to move up and down when connecting rod two (3) moves back and forth is connected with between the end of described connecting rod two (3) and guide post (4) upper end, described casing is provided with the driving mechanism (5) that can drive power transmission shaft (1) reciprocating rotation.
2. the presser foot lifting device of Sewing machines according to claim 1, it is characterized in that, described driving mechanism (5) comprises the stepper motor (51) be connected on casing, the output shaft of described stepper motor (51) is fixed with driving gear (52), described casing is also rotatably connected to driven gear (53), above-mentioned driving gear (52) is meshed with driven gear (53), the side of described driven gear (53) is vertically fixed with bearing pin (531), the axial line of this bearing pin (531) does not overlap with the axial line of driven gear (53), the end vertical of described power transmission shaft (1) is fixed with kinematic link (54), the axis of above-mentioned bearing pin (531) and the length direction of kinematic link (54) perpendicular, described kinematic link (54) offers along its length chute (541), above-mentioned bearing pin (531) sliding plug is in chute (541).
3. the presser foot lifting device of Sewing machines according to claim 2, it is characterized in that, described connecting rod two (3) offers gathering sill (31) along its length, the sidewall of described connecting rod one (2) is vertically fixed with connecting pin (21), and this connecting pin (21) sliding plug is in gathering sill (31).
4. the presser foot lifting device of the Sewing machines according to Claims 2 or 3, it is characterized in that, described transmission mechanism (6) comprises front lever (61) and lifter plate (62), one end of described front lever (61) is hinged on casing, the other end has connecting portion one (611) and connecting portion two (612) respectively, one end and the connecting portion one (611) of described connecting rod two (3) are hinged, upper end and the connecting portion two (612) of described lifter plate (62) are hinged, lower end edge horizontal direction is slidably connected at the upper end of guide post (4), described connecting portion one (611) is positioned at the top of connecting portion two (612).
5. the presser foot lifting device of Sewing machines according to claim 4, it is characterized in that, described lifter plate (62) is L-shaped, there is the side plate vertically arranged and a horizontally disposed side plate, above-mentioned connecting portion two (612) be vertically arranged on side plate and be hinged, offer link slot (621) being horizontally set on side plate upper side, the length direction of this link slot (621) and connecting axle are axially perpendicular, the upper end sidewall of described guide post (4) is fixed with a slide block (42), described slide block (42) is slidably connected in link slot (621).
6. the presser foot lifting device of Sewing machines according to claim 2, it is characterized in that, described stepper motor (51) comprises a handwheel (511), and this handwheel (511) is connected mutually with the output shaft of stepper motor (51).
7. the presser foot lifting device of Sewing machines according to claim 6, it is characterized in that, described casing is fixed with the motor cabinet (7) of tabular, this motor cabinet (7) parallels with chassis sidewall and has gap between the two, the side that described motor cabinet (7) is relative with casing offers the mounting groove (71) of two circles, above-mentioned driving gear (52) and driven gear (53) are rotatably connected in two mounting grooves (71) respectively, and described stepper motor (51) is fixed on the another side of motor cabinet (7).
8. the presser foot lifting device of Sewing machines according to claim 2, it is characterized in that, also comprise the limiting plate (542) of a bar shaped, one end of this limiting plate (542) offers bar hole (543), and wear bar hole (543) be connected on the sidewall of kinematic link (54) by screw (544), embed in chute (541) after other end bending.
9. the presser foot lifting device of the Sewing machines according to claim 6 or 7 or 8, is characterized in that, is fixed with ladder axle sleeve (11) in described casing, and above-mentioned power transmission shaft (1) is rotatably connected in ladder axle sleeve (11).
CN201420770427.5U 2014-12-09 2014-12-09 A kind of presser foot lifting device of Sewing machines Expired - Fee Related CN204491176U (en)

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CN201420770427.5U CN204491176U (en) 2014-12-09 2014-12-09 A kind of presser foot lifting device of Sewing machines

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Application Number Priority Date Filing Date Title
CN201420770427.5U CN204491176U (en) 2014-12-09 2014-12-09 A kind of presser foot lifting device of Sewing machines

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105139512A (en) * 2015-07-30 2015-12-09 恒银金融科技股份有限公司 ATM pressure detection device and method
CN106637735A (en) * 2016-12-07 2017-05-10 杰克缝纫机股份有限公司 Trim thread, lifting foot pressure mechanism and sewing machine.
CN108118457A (en) * 2016-11-29 2018-06-05 拓卡奔马机电科技有限公司 A kind of presser foot lifter height adjustment mechanism and lockstitch button holder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105139512A (en) * 2015-07-30 2015-12-09 恒银金融科技股份有限公司 ATM pressure detection device and method
CN108118457A (en) * 2016-11-29 2018-06-05 拓卡奔马机电科技有限公司 A kind of presser foot lifter height adjustment mechanism and lockstitch button holder
CN108118457B (en) * 2016-11-29 2023-07-07 拓卡奔马机电科技有限公司 Lift presser foot height adjustment mechanism and buttonholing machine
CN106637735A (en) * 2016-12-07 2017-05-10 杰克缝纫机股份有限公司 Trim thread, lifting foot pressure mechanism and sewing machine.

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150722

Termination date: 20171209

CF01 Termination of patent right due to non-payment of annual fee