CN206591257U - Presser foot drive in a kind of sewing machine - Google Patents

Presser foot drive in a kind of sewing machine Download PDF

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Publication number
CN206591257U
CN206591257U CN201720286334.9U CN201720286334U CN206591257U CN 206591257 U CN206591257 U CN 206591257U CN 201720286334 U CN201720286334 U CN 201720286334U CN 206591257 U CN206591257 U CN 206591257U
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China
Prior art keywords
presser
connecting seat
presser bar
spring
arm
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Active
Application number
CN201720286334.9U
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Chinese (zh)
Inventor
阮积康
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Zhejiang chuantian Intelligent Technology Co.,Ltd.
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阮积康
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Priority to CN201720286334.9U priority Critical patent/CN206591257U/en
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Abstract

The utility model is related to presser foot drive in a kind of sewing machine, including the drive device that head, presser bar and driving presser bar move up and down, it is characterised in that:Described drive device includes motor, swing arm, upper connecting rod, crank arm, connecting seat, lower link and presser bar connector, described swing arm is connected on the output shaft of motor, crank arm and be articulated on connecting seat, connecting seat is pivotally connected with head, the one end cranked arm is connected by upper connection with swing arm end, the other end cranked arm is connected by lower link with presser bar connector, described presser bar top is coaxially arranged with guide rod, spring pipe sleeve is socketed with described guide rod, spring pipe sleeve coordinates with connecting seat, there is regulating bolt at the top of head, spring is provided between spring pipe sleeve and regulating bolt, the utility model sets buffer adjusting mechanism in middle presser feet upper end, can be by buffer adjusting mechanism come adjust automatically for different thickness fabrics, concrete structure is reasonable, it is easy to adjust, safe and reliable the characteristics of.

Description

Presser foot drive in a kind of sewing machine
Technical field
The utility model is related to sewing machine technique, presser foot drive in specifically a kind of sewing machine.
Background technology
If notification number is that the A of CN 103757826 are disclosed in presser foot drive in a kind of sewing machine and its flexibility, flexibility Presser foot drive includes the drive device that presser bar and driving presser bar move up and down, and drive device includes:First motor and Control unit, the first motor is provided with the first encoder, and output shaft is connected by swing-bar mechanism with contiguous block, contiguous block and presser feet Bar is fixedly connected, and it is clockwise or inverse that control unit controls first motor cycle back and forth to carry out according to the feedback signal of encoder Hour hands are rotated, and closely drive the contiguous block to move up and down, and middle presser feet is driven by independent motor, the motion with eedle main shaft It is unrelated, and the output shaft of motor is connected by swing-bar mechanism with contiguous block, and the motor of middle presser foot device can be placed in sewing machine It in casing, can also be placed in outside sewing machine case, reduce the volume of sewing machine case, it is simple in construction, it is easy to maintenance, reduce Maintenance cost.
But above-mentioned middle presser foot drive, middle presser feet lifting is by the first motor control, and the lifting of middle presser feet is Hard link, fabric thickness is different when being worked due to sewing machine, therefore needs to enter the data of encoder for different fabrics Row adjustment, needs frequently to adjust encoder in actual use, uses little convenience.
Utility model content
The purpose of this utility model is to provide presser foot drive in a kind of sewing machine, sets and buffer in middle presser feet upper end Governor motion, can be by buffer adjusting mechanism come adjust automatically for different thickness fabrics, and concrete structure is reasonable, regulation side Just, safe and reliable the characteristics of.
Following technical scheme is used to achieve the above object:
Presser foot drive in a kind of sewing machine, including the driving dress that head, presser bar and driving presser bar move up and down Put, it is characterised in that:Described drive device include motor, swing arm, upper connecting rod, crank arm, connecting seat, lower link and presser feet Bar connector, described swing arm is connected on the output shaft of motor, is cranked arm and is articulated on connecting seat, connecting seat and head pivot Connect, the one end cranked arm is connected by upper connecting rod with swing arm end, the other end cranked arm is connected by lower link and presser bar connector Connect, described presser bar top is coaxially arranged with guide rod, guide rod bottom is contained in the axial hole of presser bar, presser bar with The axle sleeve being fixed on head coordinates;Described guide rod middle part or upper socket have spring pipe sleeve, spring pipe sleeve and connecting seat Coordinate, have regulating bolt at the top of head, spring is provided between spring pipe sleeve and regulating bolt.
Described cranking arm is articulated in the wherein one end of connecting seat, and upper end of cranking arm is pivotally connected with upper connecting rod by bearing pin, is cranked arm Lower end and the upper end of lower link be pivotally connected, the other end of connecting seat is articulated on head.
Alignment pin, the position that alignment pin limitation upper connecting rod rises are provided with the middle part of connecting seat.
Spring is also coaxially arranged with above described guide rod and is oriented to adjusting screw, spring is oriented to adjusting screw and is screwed in tune In the axially extending bore for saving bolt, described spring is socketed in spring and is oriented in adjusting screw.
The utility model is additionally arranged the connecting seat of centre and cranked arm between swing arm and connecting rod relative to prior art, bent Arm is used to connect upper and lower strut, and motor output torque shape is changed into the effect that driving presser bar connector moves up and down On the one hand power, connecting seat is used to be pivotally connected connecting seat, on the other hand coordinates with spring pipe sleeve, bourdon tube is enclosed under the work of spring to even Joint chair has downward active force, therefore the utility model presser bar is while the stroke up and down driven with motor, The pressure of presser feet can also be controlled by connecting seat, according to processing fabric thickness automatic fine tuning presser feet height, the utility model increase Buffer gear need not readjust the running parameter of motor encoder for the fabric of various different-thickness, use More facilitate, while be also possible to overregulate the pressure that bolt adjusts presser feet, it is safe and reliable with rational in infrastructure, easy to adjust Feature.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model other direction;
Fig. 3 is the utility model lateral structure schematic diagram;
Fig. 4 is A-A sectional views in Fig. 3.
Embodiment
As Figure 1-4, above and below presser foot drive in a kind of sewing machine, including head, presser bar 1 and driving presser bar The drive device of motion, it is characterised in that:Described drive device includes motor 2, swing arm 3, upper connecting rod 4,5, company of cranking arm Joint chair 6, lower link 7 and presser bar connector 8, described swing arm 3 are connected on the output shaft of motor 2, and cranking arm 5 is articulated in On connecting seat 6, connecting seat 6 and head are pivotally connected, and 5 one end of cranking arm is connected by upper connecting rod 4 with the end of swing arm 3, crank arm 5 it is another End is connected by lower link 7 with presser bar connector 8, and presser bar connector 8 is connected with presser bar 1, the described top of presser bar 1 Guide rod 9 is coaxially arranged with, the bottom of guide rod 9 is contained in the axial hole of presser bar 1, the described lower end of guide rod 9 and presser feet Regulation spring 17 is set between the axial hole of bar 1, and presser bar 1 coordinates with the axle sleeve 10 being fixed on head;Described guide rod 9 Middle part or upper socket have spring pipe sleeve 11, and spring pipe sleeve 11 coordinates with connecting seat 6, there is regulating bolt 12, bullet at the top of head Spring 13 is provided between reed pipe set 11 and regulating bolt 12.
The described 5 wherein one ends for being articulated in connecting seat 6 of cranking arm, 5 upper ends of cranking arm are pivotally connected with upper connecting rod 4 by bearing pin, Crank arm 5 upper end of lower end and lower link 7 is pivotally connected, and the other end of connecting seat 6 is articulated on head.
Alignment pin 61, the position that the limitation upper connecting rod 7 of alignment pin 61 rises are provided with the middle part of connecting seat 6.
The described top of guide rod 9 is also coaxially arranged with spring and is oriented to adjusting screw 15, and spring 13 is oriented to adjusting screw 15 In the axially extending bore for being screwed in regulating bolt 12, described spring 13 is socketed in spring and is oriented in adjusting screw 15.
During utility model works, motor 1, which rotates, causes swing arm 3 to swing, and swing arm 3 is driven by upper connecting rod 4 and cranks arm 5 Rotation, 5 rotations of cranking arm drive lower connecting rod 7 to rise or fall, and then realize the lifting of presser feet.
The utility model is additionally arranged the connecting seat of centre and cranked arm between swing arm and connecting rod relative to prior art, bent Arm is used to connect upper and lower strut, and motor output torque shape is changed into the effect that driving presser bar connector moves up and down On the one hand power, connecting seat is used to be pivotally connected connecting seat, on the other hand coordinates with spring pipe sleeve, bourdon tube is enclosed under the work of spring to even Joint chair has downward active force, therefore the utility model presser bar is while the stroke up and down driven with motor, The pressure of presser feet can also be controlled by connecting seat, according to processing fabric thickness automatic fine tuning presser feet height, the utility model increase Buffer gear need not readjust the running parameter of motor encoder for the fabric of various different-thickness, use More facilitate, while be also possible to overregulate the pressure that bolt adjusts presser feet, it is safe and reliable with rational in infrastructure, easy to adjust Feature.

Claims (5)

1. presser foot drive in a kind of sewing machine, including head, presser bar(1)The driving dress moved up and down with driving presser bar Put, it is characterised in that:Described drive device includes motor(2), swing arm(3), upper connecting rod(4), crank arm(5), connecting seat (6), lower link(7)With presser bar connector(8), described swing arm(3)It is connected to motor(2)Output shaft on, crank arm (5)It is articulated in connecting seat(6)On, connecting seat(6)It is pivotally connected, cranks arm with head(5)One end pass through upper connecting rod(4)With swing arm(3) End is connected, and is cranked arm(5)The other end pass through lower link(7)With presser bar connector(8)Connection, presser bar connector(8)With Presser bar(1)It is connected, described presser bar(1)Top is coaxially arranged with guide rod(9), guide rod(9)Bottom is contained in presser feet Bar(1)Axial hole in, presser bar(1)With the axle sleeve being fixed on head(10)Coordinate;Described guide rod(9)Middle part or on Portion is socketed with spring pipe sleeve(11), spring pipe sleeve(11)With connecting seat(6)Coordinate, there is regulating bolt at the top of head(12), bullet Reed pipe set(11)With regulating bolt(12)Between be provided with spring(13).
2. presser foot drive in a kind of sewing machine as claimed in claim 1, it is characterised in that:Described cranks arm(5)Pivot joint In connecting seat(6)Wherein one end, crank arm(5)Upper end and upper connecting rod(4)It is pivotally connected, is cranked arm by bearing pin(5)Lower end with Connecting rod(7)Upper end pivot joint, connecting seat(6)The other end be articulated on head.
3. presser foot drive in a kind of sewing machine as claimed in claim 2, it is characterised in that:In connecting seat(6)Middle part It is provided with alignment pin(61), alignment pin(61)Limit upper connecting rod(7)The position of rising.
4. presser foot drive in a kind of sewing machine as claimed in claim 3, it is characterised in that:Described guide rod(9)On Side is also coaxially arranged with spring and is oriented to adjusting screw(15), spring(13)It is oriented to adjusting screw(15)It is screwed in regulating bolt(12) Axially extending bore in, described spring (13) be socketed in spring be oriented to adjusting screw(15) on.
5. presser foot drive in a kind of sewing machine as claimed in claim 3, it is characterised in that:Described guiding adjusting screw (15) lower end and guide rod(9)Contact;Described guide rod(9)Lower end and presser bar(1)Axial hole between set regulation bullet Spring(17).
CN201720286334.9U 2017-03-23 2017-03-23 Presser foot drive in a kind of sewing machine Active CN206591257U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720286334.9U CN206591257U (en) 2017-03-23 2017-03-23 Presser foot drive in a kind of sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720286334.9U CN206591257U (en) 2017-03-23 2017-03-23 Presser foot drive in a kind of sewing machine

Publications (1)

Publication Number Publication Date
CN206591257U true CN206591257U (en) 2017-10-27

Family

ID=60122508

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720286334.9U Active CN206591257U (en) 2017-03-23 2017-03-23 Presser foot drive in a kind of sewing machine

Country Status (1)

Country Link
CN (1) CN206591257U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108130656A (en) * 2018-01-23 2018-06-08 诸暨锦和缝制机械有限公司 A kind of automatic needle-foot-lifting device of sewing machine
CN109183288A (en) * 2018-09-29 2019-01-11 浙江杰克智能缝制科技有限公司 A kind of cloth-pressing device and sewing machine of sewing machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108130656A (en) * 2018-01-23 2018-06-08 诸暨锦和缝制机械有限公司 A kind of automatic needle-foot-lifting device of sewing machine
CN108130656B (en) * 2018-01-23 2020-09-18 浙江锦上智控科技有限公司 Presser foot device is lifted in sewing machine's automation
CN109183288A (en) * 2018-09-29 2019-01-11 浙江杰克智能缝制科技有限公司 A kind of cloth-pressing device and sewing machine of sewing machine
CN109183288B (en) * 2018-09-29 2020-11-03 浙江杰克智能缝制科技有限公司 Cloth pressing device of sewing machine and sewing machine

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GR01 Patent grant
GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20210512

Address after: Room 282, administrative service center, cluster district, No. 9, east section of Jianan Avenue, Taizhou, Zhejiang Province

Patentee after: Zhejiang chuantian Intelligent Technology Co.,Ltd.

Address before: 318000 Chen Zhenyong village, Jiaojiang District, Taizhou City, Zhejiang Province

Patentee before: Ruan Jikang