CN203904635U - Stepless lifting device for presser foot in sewing machine - Google Patents

Stepless lifting device for presser foot in sewing machine Download PDF

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Publication number
CN203904635U
CN203904635U CN201420313486.XU CN201420313486U CN203904635U CN 203904635 U CN203904635 U CN 203904635U CN 201420313486 U CN201420313486 U CN 201420313486U CN 203904635 U CN203904635 U CN 203904635U
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CN
China
Prior art keywords
connecting rod
presser feet
presser foot
brace
gear
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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.)
Expired - Fee Related
Application number
CN201420313486.XU
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Chinese (zh)
Inventor
周富前
Original Assignee
周富前
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Filing date
Publication date
Application filed by 周富前 filed Critical 周富前
Priority to CN201420313486.XU priority Critical patent/CN203904635U/en
Application granted granted Critical
Publication of CN203904635U publication Critical patent/CN203904635U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of sewing machines, in particular to a stepless lifting device for a presser foot in a sewing machine. The stepless lifting device comprises a motor, a gear, a connecting rod, a connecting piece, a pivoting rod, a hollow piece, a machine base, an L-shaped limiting block, the presser foot and the presser foot connecting rod. The motor is connected with the gear and drives the gear to rotate, the presser foot is fixedly connected with the presser foot connecting rod, and the L-shaped limiting block comprises a horizontal part and a vertical part, one end of the L-shaped limiting block is connected to the machine base in a pivoting mode, and the horizontal part of the L-shaped limiting block is a protrusive part penetrating into the hollow piece. Compared with the prior art, through using the L-shaped limiting block and the hollow piece, the height of the presser foot can be controlled, it is avoided that the presser foot is either located at the highest position or the lowest position, and the presser foot can be controlled in the middle. According to the thickness of cloth, the presser foot is adjusted to an appropriate height, in the sewing process, moderate force exerted on the cloth is guaranteed, fatness of the cloth is guaranteed, in the sewing process, operation is smooth, workloads of a sewing person are reduced, working efficiency is improved, and enterprise cost is reduced.

Description

The stepless lifting apparatus of presser feet in a kind of Sewing machines
Technical field
The utility model relates to sewing machine technique field, relates in particular to the stepless lifting apparatus of presser feet in a kind of Sewing machines.
Background technology
Sewing machines is mainly divided into two kinds of industrial and family expenses, its structure is mainly comprised of head, support, transmission and presser feet four parts, it is on cloth, to form one or more stitchings, the machine that cloth is interweaved or unite by a seam, wherein, the effect of presser feet is that cloth is pressed on feed dog, so that the cloth constantly of sewing moves.Sewing-machine foot comprises that pressing plate and one end are fixed on the pressing plate brace on pressing plate, the height of the sewing-machine foot of prior art can not free adjustment, can only be in the highest or extreme lower position, and can not be controlled at the optional position between the highest and extreme lower position, therefore can not be according to the thickness of cloth, by selecting suitable presser feet height, compress cloth, now just easily occur that work feed is not smooth, the phenomenons such as stitching accumulation and cloth out-of-flatness, now just need sewer manually to remove to press cloth and guarantee the smooth of cloth, workload increases greatly, defective products rate increases, inefficiency, increased entreprise cost.
Therefore, be badly in need of providing the stepless lifting apparatus of presser feet in a kind of new Sewing machines, to solve deficiency of the prior art.
Summary of the invention
In order to overcome above-mentioned defect, the utility model provides the stepless lifting apparatus of presser feet in a kind of Sewing machines, can control easily the height of presser feet, according to the thickness of cloth, presser feet be adjusted to suitable height, during sewing, guarantee that the dynamics being pressed on cloth is moderate, keep the smooth of cloth, during sewing, move smooth and easyly, reduce sewer's workload, defective products rate is reduced, increase work efficiency, reduce entreprise cost.
To achieve these goals, the utility model adopts following technical scheme:
The stepless lifting apparatus of presser feet in a kind of Sewing machines, comprise motor, gear, connecting rod, brace, pivoted pole, hollow sheet, support, L shaped limited block, presser feet and presser feet connecting rod, described motor connects described gear and drives described gear to rotate, described presser feet is fixedly connected with described presser feet connecting rod, described connecting rod and the L-shaped setting of described pivoted pole, described connecting rod one end and described gear join, the other end is fixedly connected with described pivoted pole, the other end hinge of described pivoted pole is connected between described brace one end and described hollow sheet one end, described L shaped limited block comprises horizontal part and vertical portion, described L shaped limited block one end is articulated on described support, the horizontal part of described L shaped limited block is a protuberance, described protuberance penetrates described hollow sheet, the vertical portion of described L shaped limited block is fixedly connected with described brace middle part, the other end of described brace is fixedly connected with described presser feet connecting rod.
Described brace is V-arrangement round end brace, and described brace two ends and centre are respectively provided with a through hole.
Described connecting rod is through two retainer rings, and two described retainer rings are fixed on described support, and connecting rod rotates in described retainer ring described in described gear driven.
Described connecting rod drives described pivoted pole to swing up and down.
Described hollow sheet is provided with a through hole, and the protuberance of described L shaped limited block is through described through hole.
The utility model discloses the stepless lifting apparatus of a kind of middle presser feet, compared with prior art, the utility model is by the use of L shaped limited block and hollow sheet, can control the height of presser feet, avoid not being that extreme higher position is exactly extreme lower position, it highly can also be controlled to centre position, according to the thickness of cloth, adjust to suitable height, during sewing, guarantee that the dynamics being pressed on cloth is moderate, keep the smooth of cloth, during sewing, move smooth and easy, reduce sewer's workload, defective products rate is reduced, increase work efficiency, reduce entreprise cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the stepless lifting apparatus of a kind of middle presser feet of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described, this is preferred embodiment of the present utility model.
Embodiment 1
Fig. 1 is the stepless lifting apparatus structural representation of a kind of middle presser feet of the present utility model, as shown in Figure 1, the stepless lifting apparatus of presser feet in a kind of Sewing machines, comprise motor 1, gear 2, connecting rod 3, brace 4, pivoted pole 5, hollow sheet 6, support 7, L shaped limited block 8, presser feet 9 and presser feet connecting rod 10, motor 1 connects gear 2 and driven wheel 2 rotates, presser feet 9 is fixedly connected with presser feet connecting rod 10, connecting rod 3 and the L-shaped setting of pivoted pole 5, connecting rod 3 one end and gear 2 join, the other end is fixedly connected with pivoted pole 5, the other end hinge of pivoted pole 5 is connected between brace 4 one end and hollow sheet 6 one end, L shaped limited block 8 comprises horizontal part 81 and vertical portion 82, L shaped limited block 8 one end are articulated on support 7, the horizontal part 81 of L shaped limited block 8 is a protuberance, protuberance 81 penetrates hollow sheet 6, the vertical portion 92 of L shaped limited block 8 and being fixedly connected with of brace 4 middle parts, the other end of brace 4 is fixedly connected with presser feet connecting rod 10.
Wherein brace 4 is V-arrangement round end brace, brace 4 two ends and centre are respectively provided with a through hole, be followed successively by 41,42 and 43, hollow sheet 6 is provided with a through hole 61, the protuberance 82 of L shaped limited block 8 is through through hole 61, connecting rod 3 is fixed on described support 7 through 11, two retainer rings 11 of two retainer rings, and gear 2 drives connecting rod 3 in the interior rotation of retainer ring 11.
During this device work, open motor 1, motor 1 driven wheel 2 rotates, gear 2 drives connecting rod 3 in the interior rotation of retainer ring 11, connecting rod 3 is fixedly connected with pivoted pole 5, connecting rod 3 can drive pivoted pole 5 to swing up and down around the pivoting point of through hole 41, will drive hollow sheet 6 to move up and down, now, the protuberance 82 of L shaped limited block 8 is through through hole 61, limited block 8 also can move up and down along with hollow sheet 6, limited block 8 is fixedly connected with through hole 42 positions of the centre of brace 4, brace 4 also can move up and down, and through hole 43 positions of brace 4 are fixedly connected with presser feet connecting rod 10, presser feet connecting rod 10 is also just along with moving up and down, and then band dynamic pressure plate moves up and down, and limited block 8 can only be in the interior movement of hollow sheet 6, played spacing effect, now, the position of pressing plate can be controlled in the space of hollow sheet 6 and moves up and down, highly can regulate control.Avoid not being that extreme higher position is exactly extreme lower position, it highly can also be controlled to centre position, according to the thickness of cloth, adjust to suitable height, during sewing, guarantee that the dynamics being pressed on cloth is moderate, keep the smooth of cloth, during sewing, move smooth and easy, reduce sewer's workload, defective products rate is reduced, increase work efficiency, reduce entreprise cost
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.

Claims (5)

1. the stepless lifting apparatus of presser feet in a Sewing machines, comprise motor, gear, connecting rod, brace, pivoted pole, hollow sheet, support, L shaped limited block, presser feet and presser feet connecting rod, described motor connects described gear and drives described gear to rotate, described presser feet is fixedly connected with described presser feet connecting rod, it is characterized in that: described connecting rod and the L-shaped setting of described pivoted pole, described connecting rod one end and described gear join, the other end is fixedly connected with described pivoted pole, the other end hinge of described pivoted pole is connected between described brace one end and described hollow sheet one end, described L shaped limited block comprises horizontal part and vertical portion, described L shaped limited block one end is articulated on described support, the horizontal part of described L shaped limited block is a protuberance, described protuberance penetrates described hollow sheet, the vertical portion of described L shaped limited block is fixedly connected with described brace middle part, the other end of described brace is fixedly connected with described presser feet connecting rod.
2. the stepless lifting apparatus of presser feet in a kind of Sewing machines according to claim 1, is characterized in that: described brace is V-arrangement round end brace, and described brace two ends and centre are respectively provided with a through hole.
3. the stepless lifting apparatus of presser feet in a kind of Sewing machines according to claim 1, it is characterized in that: described connecting rod is through two retainer rings, two described retainer rings are fixed on described support, and connecting rod rotates in described retainer ring described in described gear driven.
4. the stepless lifting apparatus of presser feet in a kind of Sewing machines according to claim 3, is characterized in that: described connecting rod drives described pivoted pole to swing up and down.
5. the stepless lifting apparatus of presser feet in a kind of Sewing machines according to claim 1, is characterized in that: described hollow sheet is provided with a through hole, and the protuberance of described L shaped limited block is through described through hole.
CN201420313486.XU 2014-06-13 2014-06-13 Stepless lifting device for presser foot in sewing machine Expired - Fee Related CN203904635U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420313486.XU CN203904635U (en) 2014-06-13 2014-06-13 Stepless lifting device for presser foot in sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420313486.XU CN203904635U (en) 2014-06-13 2014-06-13 Stepless lifting device for presser foot in sewing machine

Publications (1)

Publication Number Publication Date
CN203904635U true CN203904635U (en) 2014-10-29

Family

ID=51778926

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420313486.XU Expired - Fee Related CN203904635U (en) 2014-06-13 2014-06-13 Stepless lifting device for presser foot in sewing machine

Country Status (1)

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CN (1) CN203904635U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106149217A (en) * 2016-08-31 2016-11-23 浙江美机缝纫机有限公司 Top-type sewing-machine foot lifting drive mechanism and sewing machine thereof
CN109706631A (en) * 2018-12-29 2019-05-03 杰克缝纫机股份有限公司 A kind of regulating mechanism and adjusting method that presser feet is alternately measured

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106149217A (en) * 2016-08-31 2016-11-23 浙江美机缝纫机有限公司 Top-type sewing-machine foot lifting drive mechanism and sewing machine thereof
CN109706631A (en) * 2018-12-29 2019-05-03 杰克缝纫机股份有限公司 A kind of regulating mechanism and adjusting method that presser feet is alternately measured

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20180613