CN204174394U - A kind of automatic needle-foot-lifting mechanism of Sewing machines - Google Patents

A kind of automatic needle-foot-lifting mechanism of Sewing machines Download PDF

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Publication number
CN204174394U
CN204174394U CN201420644914.7U CN201420644914U CN204174394U CN 204174394 U CN204174394 U CN 204174394U CN 201420644914 U CN201420644914 U CN 201420644914U CN 204174394 U CN204174394 U CN 204174394U
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China
Prior art keywords
lever
presser foot
sewing machines
foot
lifting mechanism
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Expired - Fee Related
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CN201420644914.7U
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Chinese (zh)
Inventor
何清
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Zhejiang Maqi Sewing Machine Co Ltd
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Zhejiang Maqi Sewing Machine Co Ltd
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Abstract

The utility model provides a kind of automatic needle-foot-lifting mechanism of Sewing machines, belongs to sewing machine technique field.The problem of pause screens is easily produced when it solving the automatic needle-foot-lifting mechanism driving of existing Sewing machines.The automatic needle-foot-lifting mechanism of this Sewing machines, to comprise after linear actuator, presser foot lifter lever before lever, pull bar and presser foot lifter, the two ends of pull bar are connected with one end of lever before the one end of lever after presser foot lifter and presser foot lifter respectively, the output of linear actuator is can the straight-bar of linear reciprocating motion, one end of straight-bar and a connecting rod is hinged, after presser foot lifter, lever is hinged on head, after presser foot lifter, one end of lever is provided with No. two metapores, and No. two metapores are hinged by bearing pin and the other end of connecting rod and one end of pull bar.The automatic needle-foot-lifting mechanism of this Sewing machines has the comparatively smooth-going advantage of transmission.

Description

A kind of automatic needle-foot-lifting mechanism of Sewing machines
Technical field
The utility model belongs to sewing machine technique field, relates to a kind of foot lifting mechanism, particularly a kind of automatic needle-foot-lifting mechanism of Sewing machines.
Background technology
Along with the develop rapidly of science and technology, the mechanization degree that clothes manufacture is more and more higher, and in clothes making technology for making field, the sewing device based on industrial sewing machine is very many, such as flat seam machine, overlock machine, flat seaming machine etc., Sewing machines generally comprises head, support and driving member etc.
At present, industrial sewing machine is when charging, and one automated manner adopting manual mode or undertaken by automatically controlled signal of the operation of lifting and depressing of presser feet, namely the presser foot lifting device of industrial sewing machine is hand gear or automatics.When the presser foot lifting device employing hand gear of industrial sewing machine, then when charging, often need lever assembly knee being close to Sewing machines, raise up to make presser foot lifter, just there is a problem in this: each charging all needs lever assembly knee being close to Sewing machines, thus the labour intensity of operating personnel is large, easily tired.
Disclosed in Chinese patent literature, (application number: 201310113929.0), comprises with lower component: casing, comprises a uprights, is provided with a cavity in uprights for a kind of built-in automatic needle-foot-lifting structure of Sewing machines; Linear actuator, is fixedly mounted in described cavity, and linear actuator comprises one can the draw bar of straight reciprocating motion; Rear lever, its rear end is connected with the end of draw bar, the front end of rear lever comprises two pin-and-holes, and wherein pin-and-hole is rotatably connected on casing by bearing pin before first, and before rear lever rear end to first, the distance of pin-and-hole is greater than the distance of pin-and-hole before pin-and-hole to first before second; Front lever, comprise three pin-and-holes, the first pin-and-hole is rotatably connected on casing by bearing pin; Second pin-and-hole and presser feet lifter plate are hinged; Pull bar, before the rear end of pull bar and second of rear lever, pin-and-hole is hinged, and the front end of pull bar and the 3rd pin-and-hole of front lever are hinged.But this automatic needle-foot-lifting structure adopts linear actuator directly to drive rear lever rotation, therefore easily produces the phenomenon of pause screens during transmission.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes the automatic needle-foot-lifting mechanism of the comparatively smooth-going Sewing machines of a kind of transmission.
The purpose of this utility model realizes by following technical proposal: a kind of automatic needle-foot-lifting mechanism of Sewing machines, the automatic needle-foot-lifting organization establishes of this Sewing machines is in the cavity of the head of Sewing machines, comprise linear actuator, lever after presser foot lifter, lever before pull bar and presser foot lifter, the output of described linear actuator is connected with one end of lever after presser foot lifter, described pull bar is connected with one end of lever before the one end of lever after described presser foot lifter and presser foot lifter respectively, it is characterized in that, the output of described linear actuator is can the straight-bar of linear reciprocating motion, one end of described straight-bar and a connecting rod is hinged, after described presser foot lifter, lever is hinged on described head, after described presser foot lifter, one end of lever is provided with No. two metapores, No. two described metapores are hinged by bearing pin and the other end of connecting rod and one end of pull bar.
When promoting presser feet, the straight-bar retraction of linear actuator is rotated clockwise by lever before connecting rod drive presser foot lifter, and before driving presser foot lifter by pull bar, lever rotates counterclockwise, thus drives presser foot component to move upward, and completes presser foot lifter action; When presser feet declines, the straight-bar of linear actuator stretches out, and under the effect of return spring, presser foot component presses down.By linear actuator by lever rotation before connecting rod drive pull bar and presser foot lifter, realize the lifting of presser foot component and press down, there is the advantage that transmission is comparatively smooth-going.
In the automatic needle-foot-lifting mechanism of above-mentioned Sewing machines, after described presser foot lifter, lever is L-shaped, and after described presser foot lifter, the bending place of lever is provided with a metapore, and a described metapore is equipped with bearing pin and is hinged with described head.By arranging a metapore and No. two metapores, there is the connection conveniently advantage making lever after presser foot lifter.
In the automatic needle-foot-lifting mechanism of above-mentioned Sewing machines, after described presser foot lifter, the other end of lever is provided with No. three metapores, a described metapore, No. two metapores, No. three metapore distributions triangular in shape, No. three described metapores are greater than the distance of No. two metapores to a metapore to the distance of a metapore.Adopt above-mentioned setting, make the rotation comparatively labour-saving advantage of lever after presser foot lifter.
In the automatic needle-foot-lifting mechanism of above-mentioned Sewing machines, No. three described metapores are hinged by one end of bearing pin and a push rod.
In the automatic needle-foot-lifting mechanism of above-mentioned Sewing machines, before described presser foot lifter, lever is respectively equipped with a front hole, No. two front holes and No. three front holes, a described front hole by hinge on described head, No. two described front holes are hinged by the other end of bearing pin and described pull bar, and No. three described front holes and presser feet lifter plate are hinged.
In the automatic needle-foot-lifting mechanism of above-mentioned Sewing machines, a described front hole, No. two front holes and No. three front holes are in angular position.Adopt above-mentioned setting, before being convenient to presser foot lifter, lever rotates around a front hole.
In the automatic needle-foot-lifting mechanism of above-mentioned Sewing machines, the downside of described presser feet lifter plate is connected with depression bar, and the lower end of described depression bar is connected with presser foot component.Be connected with depression bar by the downside of presser feet lifter plate, there is the advantage that structure is simple and easy to connect.
In the automatic needle-foot-lifting mechanism of above-mentioned Sewing machines, described linear actuator is cylinder or electromagnet.Linear actuator is cylinder or electromagnet, has the simple and good advantage of transmission effect of structure.
Compared with prior art, the automatic needle-foot-lifting mechanism of this Sewing machines has the following advantages:
1, drive lever rotation before pull bar and presser foot lifter by linear actuator by connecting rod, realize the lifting of presser foot component and press down, there is the advantage that transmission is comparatively smooth-going.
2, by arranging a metapore and No. two metapores, there is the connection conveniently advantage making lever after presser foot lifter.
3, adopt linear actuator automatic needle-foot-lifting mode, improve the automation of machine, reduce labour intensity during operation, thus add economic benefit.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of the automatic needle-foot-lifting mechanism of this Sewing machines.
Fig. 2 is the structure diagram of the automatic needle-foot-lifting mechanism of this Sewing machines.
In figure, 1, head; 2, linear actuator; 2a, cylinder; 2b, straight-bar; 3, lever after presser foot lifter; 3a, a metapore; 3b, No. two metapores; 3c, No. three metapores; 4, pull bar; 5, lever before presser foot lifter; 5a, a front hole; 5b, No. two front holes; 5c, No. three front holes; 6, connecting rod; 7, presser feet lifter plate; 8, presser foot component; 9, depression bar.
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 illustrated in fig. 1 and 2, a kind of automatic needle-foot-lifting mechanism of Sewing machines, the automatic needle-foot-lifting organization establishes of this Sewing machines is in the cavity of the head 1 of Sewing machines, to comprise after linear actuator 2, presser foot lifter lever 5 before lever 3, pull bar 4 and presser foot lifter, linear actuator 2 adopts cylinder 2a or electromagnet, has the simple and good advantage of transmission effect of structure.
The output of linear actuator 2 is can the straight-bar 2b of linear reciprocating motion, one end of straight-bar 2b and a connecting rod 6 is hinged, after presser foot lifter, lever 3 is hinged on head 1, after presser foot lifter, lever 3 is L-shaped, after presser foot lifter, the bending place of lever 3 is provided with a metapore 3a, a metapore 3a is equipped with bearing pin and is hinged with head 1, after presser foot lifter, one end of lever 3 is provided with No. two metapore 3b, No. two metapore 3b are hinged by bearing pin and the other end of connecting rod 6 and one end of pull bar 4, after presser foot lifter, the other end of lever 3 is provided with No. three metapore 3c, No. three metapore 3c are hinged by one end of bearing pin and a push rod.Metapore 3a, No. two metapore 3b, No. three metapore 3c distributions triangular in shape, the distance of No. three metapore 3c to a metapore 3a is greater than the distance of No. two metapore 3b to a metapore 3a.
Before presser foot lifter, lever 5 is respectively equipped with a front hole 5a, No. two front hole 5b and No. three front hole 5c, front hole 5a by hinge on head 1, No. two front hole 5b are hinged by the other end of bearing pin and pull bar 4, and No. three front hole 5c and presser feet lifter plate 7 are hinged.Front hole 5a, No. two front hole 5b and No. three front hole 5c are in angular position.Adopt above-mentioned setting, before being convenient to presser foot lifter, lever 5 rotates around a front hole 5a.The downside of presser feet lifter plate 7 is connected with depression bar 9, and the lower end of depression bar 9 is connected with presser foot component 8, has the advantage that structure is simple and easy to connect.
When promoting presser feet, before the straight-bar 2b of cylinder 2a bounces back and drives presser foot lifter by connecting rod 6, lever 5 rotates clockwise, and before driving presser foot lifter by pull bar 4, lever 5 rotates counterclockwise, thus drives presser foot component 8 to move upward, and completes presser foot lifter action; When presser feet declines, the straight-bar 2b of cylinder 2a stretches out, and under the effect of return spring, presser foot component 8 presses down.Before driving pull bar 4 and presser foot lifter by linear actuator 2 by connecting rod 6, lever 5 rotates, and realizes the lifting of presser foot component 8 and presses down, having the advantage that transmission is comparatively smooth-going.
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 lever 5, front hole 5a, No. two terms such as front hole 5b, No. three front hole 5c, connecting rod 6, presser feet lifter plate 7, presser foot component 8, depression bars 9 before lever 3, metapore 3a after more employing head 1, linear actuator 2, cylinder 2a, straight-bar 2b, presser foot lifter herein, No. two metapore 3b, No. three metapore 3c, pull bar 4, presser foot lifter, 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 (8)

1. the automatic needle-foot-lifting mechanism of a Sewing machines, the automatic needle-foot-lifting organization establishes of this Sewing machines is in the cavity of the head (1) of Sewing machines, comprise linear actuator (2), lever (3) after presser foot lifter, lever (5) before pull bar (4) and presser foot lifter, the two ends of described pull bar (4) are connected with one end of lever (5) before the one end of lever (3) after described presser foot lifter and presser foot lifter respectively, before described presser foot lifter, the other end of lever (5) is connected with presser foot component (8), it is characterized in that, the output of described linear actuator (2) is can the straight-bar (2b) of linear reciprocating motion, described straight-bar (2b) is hinged with one end of a connecting rod (6), after described presser foot lifter, lever (3) is hinged on described head (1), after described presser foot lifter, one end of lever (3) is provided with No. two metapores (3b), No. two described metapores (3b) are hinged by bearing pin and the other end of connecting rod (6) and one end of pull bar (4).
2. the automatic needle-foot-lifting mechanism of a kind of Sewing machines according to claim 1, it is characterized in that, after described presser foot lifter, lever (3) is L-shaped, after described presser foot lifter, the bending place of lever (3) is provided with a metapore (3a), and a described metapore (3a) is equipped with bearing pin and is hinged with described head (1).
3. the automatic needle-foot-lifting mechanism of a kind of Sewing machines according to claim 2, it is characterized in that, after described presser foot lifter, the other end of lever (3) is provided with No. three metapores (3c), a described metapore (3a), No. two metapores (3b), the distribution triangular in shape of No. three metapores (3c), No. three described metapores (3c) are greater than the distance of No. two metapores (3b) to a metapore (3a) to the distance of a metapore (3a).
4. the automatic needle-foot-lifting mechanism of a kind of Sewing machines according to claim 3, is characterized in that, No. three described metapores (3c) are hinged by one end of bearing pin and a push rod.
5. the automatic needle-foot-lifting mechanism of a kind of Sewing machines according to claim 1 or 2 or 3 or 4, it is characterized in that, before described presser foot lifter, lever (5) is respectively equipped with a front hole (5a), No. two front holes (5b) and No. three front holes (5c), a described front hole (5a) by hinge on described head (1), No. two described front holes (5b) are hinged by the other end of bearing pin and described pull bar (4), and No. three described front holes (5c) and presser feet lifter plate (7) are hinged.
6. the automatic needle-foot-lifting mechanism of a kind of Sewing machines according to claim 5, is characterized in that, a described front hole (5a), No. two front holes (5b) and No. three front holes (5c) are in angular position.
7. the automatic needle-foot-lifting mechanism of a kind of Sewing machines according to claim 1 or 2 or 3 or 4, it is characterized in that, the downside of described presser feet lifter plate (7) is connected with depression bar (9), and the lower end of described depression bar (9) is connected with presser foot component (8).
8. the automatic needle-foot-lifting mechanism of a kind of Sewing machines according to claim 1 or 2 or 3 or 4, is characterized in that, described linear actuator (2) is cylinder (2a) or electromagnet.
CN201420644914.7U 2014-10-31 2014-10-31 A kind of automatic needle-foot-lifting mechanism of Sewing machines Expired - Fee Related CN204174394U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104630993A (en) * 2015-03-07 2015-05-20 杰克缝纫机股份有限公司 Presser foot lifting mechanism of sewing machine
CN105350187A (en) * 2015-09-29 2016-02-24 浙江美机缝纫机有限公司 Sewing machine pressure foot lifting mechanism provided with locking device
CN107012598A (en) * 2017-05-23 2017-08-04 拓卡奔马机电科技有限公司 Automatic needle-foot-lifting mechanism and button-sewing machine
CN107099940A (en) * 2017-05-25 2017-08-29 杰克缝纫机股份有限公司 A kind of sewing machine
CN107245813A (en) * 2017-08-11 2017-10-13 杰克缝纫机股份有限公司 A kind of sewing machine
CN109281072A (en) * 2018-10-31 2019-01-29 杰克缝纫机股份有限公司 A kind of sewing machine and its presser foot lifting device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104630993A (en) * 2015-03-07 2015-05-20 杰克缝纫机股份有限公司 Presser foot lifting mechanism of sewing machine
CN104630993B (en) * 2015-03-07 2017-11-10 杰克缝纫机股份有限公司 A kind of foot lifting mechanism of sewing machine
CN105350187A (en) * 2015-09-29 2016-02-24 浙江美机缝纫机有限公司 Sewing machine pressure foot lifting mechanism provided with locking device
CN105350187B (en) * 2015-09-29 2018-08-07 浙江美机缝纫机有限公司 Has the mechanism for lifting pressre of sewing machine of locking device
CN107012598A (en) * 2017-05-23 2017-08-04 拓卡奔马机电科技有限公司 Automatic needle-foot-lifting mechanism and button-sewing machine
CN107099940A (en) * 2017-05-25 2017-08-29 杰克缝纫机股份有限公司 A kind of sewing machine
CN107245813A (en) * 2017-08-11 2017-10-13 杰克缝纫机股份有限公司 A kind of sewing machine
CN109281072A (en) * 2018-10-31 2019-01-29 杰克缝纫机股份有限公司 A kind of sewing machine and its presser foot lifting device

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

Granted publication date: 20150225

Termination date: 20151031

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