KR101588373B1 - Apparatus and method automatically adjusting the height of presser foot of the embroidery machine - Google Patents

Apparatus and method automatically adjusting the height of presser foot of the embroidery machine Download PDF

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Publication number
KR101588373B1
KR101588373B1 KR1020140084759A KR20140084759A KR101588373B1 KR 101588373 B1 KR101588373 B1 KR 101588373B1 KR 1020140084759 A KR1020140084759 A KR 1020140084759A KR 20140084759 A KR20140084759 A KR 20140084759A KR 101588373 B1 KR101588373 B1 KR 101588373B1
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KR
South Korea
Prior art keywords
presser foot
driving
height
connecting rod
cam
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KR1020140084759A
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Korean (ko)
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KR20140105419A (en
Inventor
하이지앙 왕
전계욱
Original Assignee
쥬지 신신 메커니컬 앤드 일렉트리컬 테크놀로지 컴퍼니 리미티드
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Publication of KR20140105419A publication Critical patent/KR20140105419A/en
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Publication of KR101588373B1 publication Critical patent/KR101588373B1/en

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

The present invention relates to an apparatus and method for automatically adjusting the height of a presser foot of an embroidery machine, in which a drive shaft is horizontally mounted on one side of a presser foot, the presser foot is driven by a presser foot drive block, and the presser foot drive block is hinge- The other end of the presser lever is driven by an eccentric cam, the eccentric cam is mounted on a presser foot drive hinge pin, the drive shaft is driven by a motor, The driving shaft rotates the presser foot driving pin in conjunction with the cam connecting rod mechanism. The controller controls the motor to rotate at a rotation angle corresponding to the height of the presser foot set by the motor and rotates the drive shaft while the cam connecting rod mechanism and the presser foot drive hinge pin are interlocked with each other and the eccentric cam fixed on the presser foot drive hinge pin And the center of movement of the presser foot lever is changed at the same time, and the presser foot driving rod and the presser foot driving block adjust the height of the presser foot. Therefore, in the present invention, since the height of the presser foot can be instantly changed according to the work type, it is not necessary to stop the operation of the apparatus, and the production efficiency and the production quality are improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for automatically adjusting a presser foot height of an embroidery machine,

The present invention relates to an embroidery machine, and more particularly, to an apparatus capable of automatically controlling the presser foot height according to the thickness of a workpiece during embroidery work.

The presser foot of the embroidery machine is divided into three types. A needle bar support type that adjusts the vertical height by a needle bar and a needle bar support, a buffer type that interlocks with a needle bar and a cushion member, and a stand alone type which is driven independently by a separate drive member.

Generally, needle bar support type and buffer type are mainly used. The needle bar base type has a disadvantage in that it determines the overall height in the pad between the needle bar base and the presser foot, and the noise is large and it is difficult to change the presser foot height.

The buffer type interlocks the height of the presser foot with the needle bar and the buffer, and the buffer is driven by an operation lever that moves any axis.

The stand-alone type is used for an embroidery machine or a sewing machine which is required only for a very short stroke (stroke), and when the height of the presser foot is raised, the main shaft must be stopped.

Generally speaking, in the prior art, the above-mentioned three types of presser foot are difficult to change the height immediately according to the work type, and even if they can be changed, there is a disadvantage that the embroidery machine must be stopped and then adjusted for a long time.

A problem to be solved by the present invention is to provide an apparatus and method for automatically adjusting the height of a presser foot so that the height of the presser foot is changed instantaneously according to the work type, will be.

In order to solve the above technical problem, the present invention proposes a device for automatically adjusting the height of the presser foot. Wherein the presser foot drive block is hinged to the presser foot drive connecting rod, and one end of the presser foot drive connecting rod and the presser foot lever are hinged to each other by a hinge, And the other end of the presser lever is driven by an eccentric cam, the eccentric cam is mounted on a presser foot drive hinge pin, the drive shaft is driven by a motor, and the drive shaft is rotated by a cam connecting rod mechanism Rotate the presser foot drive hinge pin in conjunction.

Preferably, the cam connecting rod mechanism includes a driving cam fixed to the driving shaft and a first connecting rod whose one end is hinged with the driving cam, one end of the first connecting rod and one end of the second connecting rod are hinged, And the other end of the second connecting rod and the presser foot driving hinge pin are fixed.

Preferably, the triangular plate of an isosceles triangle is provided on one side of the driving cam, the angle of the base of the triangular plate is connected to the driving shaft and rotated, and the presser foot driving hinge pin is connected to another angle of the base of the triangular plate, do.

Preferably, the other end of the presser foot lever is provided with a circular hole, and the eccentric cam is mounted in the circular hole.

Preferably, a drive gear is mounted on an output shaft of the motor, a driven gear is mounted on the drive shaft, and the drive gear and the driven gear are rotated to engage with each other.

The present invention also provides a method of automatically adjusting the height of the presser foot of an embroidery machine by using a device for automatically adjusting the height of the presser foot of the embroidery machine. In the controller, the height of the presser foot is set according to the setting corresponding to different inputs of the needle bar, The controller controls the motor to rotate at a rotation angle corresponding to the height of the presser foot set by the motor when the color is changed and the needle bar is changed and the cam connecting rod mechanism and the presser foot drive hinge pin are interlocked after rotating the drive shaft, When the pin rotates, the eccentric cam fixed thereon is rotated, and at the same time, the center of movement of the presser lever is changed, so that the presser foot driving connecting rod and the presser foot driving block adjust the height of the presser foot.

More preferably, in the course of operation of the motor, the sensor mounted on the motor detects the rotation angle of the output shaft and gives feedback to the controller. After the output shaft rotates at the set angle, the controller controls the motor do.

In the technical solution provided by the present invention, the controller controls the motor to rotate by a rotation angle corresponding to the set foot height, and after the drive shaft is rotated, the cam connecting rod mechanism and the presser foot drive hinge pin are interlocked, When the eccentric cam is rotated, the eccentric cam fixed on the eccentric cam is rotated, and at the same time, the movement center of the presser foot lever is changed so that the presser foot drive connecting rod and the presser foot drive block adjust the height of the presser foot.

Therefore, in the present invention, since the height of the presser foot can be instantly changed according to the work type, it is not necessary to stop the apparatus, and the production efficiency and the production quality are improved.

The present invention will be described in more detail with reference to the following drawings and examples.
1 is a structural explanatory view 1 of an apparatus for automatically controlling a presser foot height in an embroidery machine;
Fig. 2 is a structural explanatory view 2 of an apparatus for automatically controlling the presser foot height in an embroidery machine;
3 is a structural explanatory view 3 of an apparatus for automatically controlling the presser foot height in an embroidery machine; And
4 is an explanatory view of the principle of a method of automatically adjusting the presser foot height in the embroidery machine.

1 to 3, in the apparatus for automatically adjusting the presser foot height of the embroidery machine according to the present invention, a drive shaft 151 is horizontally mounted on one side of the presser foot 165, and the presser foot 165 And the presser foot driving block 169 is hinged to the presser foot driving connecting rod 169 and the presser foot driving connecting rod 169 and one end of the presser foot lever 162 are hingedly coupled to each other by the presser foot driving block 163, And the other end of the presser lever 162 is driven by an eccentric cam 157. The eccentric cam 157 is mounted on the presser foot drive hinge pin 155 and the drive shaft 151 is driven by a motor 156, and the driving shaft 151 rotates the presser foot driving pin in cooperation with the cam connecting rod mechanism.

The cam connecting rod mechanism includes a driving cam 168 fixed to a driving shaft and a first connecting rod 152 whose one end is hinged with the driving cam. One end of the second connecting rod 153 and one end of the second connecting rod 153 are hinge- And the other end of the second connecting rod 153 and the presser foot driving hinge pin 155 are fixed. A drive gear 150 is mounted on an output shaft of the motor, and a driven gear 154 is mounted on the drive shaft. The driven gear is engaged with the driven gear to rotate.

The operation principle of the apparatus for automatically adjusting the presser foot height of the embroidery machine is as follows.

The motor 156 outputs torque by the output shaft and the drive gear 150 and the driven gear 154 are engaged to decelerate the drive and the driven gear 154 rotates the drive shaft 151, The first connecting rod 152, the second connecting rod 153 and the presser foot driving hinge pin 155 are operated in order and the eccentric cam 157 is operated in the order of the presser foot The height of the presser foot 165 is changed by adjusting the center of arc motion of the lever 162 and changing the center position of the eccentricity.

A triangular plate 158 of an isosceles triangle is provided on one side of the driving cam 168. A corner of the base of the triangle is connected to the driving shaft and rotates and the presser foot driving hinge pin is connected to another angle of the base of the triangle Rotate. The triangular plate is relatively fixed, but both the drive shaft and the presser foot drive hinge pin can rotate relative to the triangular plate.

A circular hole is provided at the other end of the presser foot lever, and the eccentric cam (157) is mounted in the circular hole. 4, when the eccentric gear 157 rotates, the rotation center A of the eccentric gear does not change, but the rotation center B of the presser lever is changed. In this process, A) and the horizontal line of the presser foot rotation center (B) is changed from U to D. At the same time, the presser foot height in two states produces a presser foot height deviation, so that the presser foot height is adjusted.

The presser foot driving block 163 includes a normal body and a lower protrusion protruding toward the presser foot toward the side of the presser foot is mounted on the bottom face of the presser body. The upper protrusion is mounted, and the upper protrusion is hinged to the presser foot drive connecting rod. The presser foot lever is attached to the end portion of the eccentric cam which is connected to the presser foot lever at right angles with the side surface protrusion perpendicular to the presser foot lever, and the support of the presser foot lever is attached to the end of the side surface protrusion. The end of the side projection is hinged to the cam (161) by a pin, and the cam is mounted on the camshaft (160).

Further, a sensor 166 is attached to the motor 156 to detect the rotation angle of the output shaft, and feedback to the controller of the motor.

4, in the method of automatically adjusting the presser foot height of the embroidery machine, when setting the presser foot height according to the setting corresponding to the different input of the needle bar in the controller, changing the color and changing the needle bar, The cam connecting rod mechanism and the presser foot driving hinge pin 155 interlock with each other after the driving shaft 151 is rotated, and the presser foot driving hinge pin is rotated (rotated) by the rotation angle corresponding to the presser foot height set by the motor 156, The eccentric cam 157 fixed on the eccentric cam 157 rotates and the center of motion of the presser lever 162 is changed so that the presser foot drive connecting rod 169 and the presser foot drive block 163 adjust the height of the presser foot 165 .

The controller controls the motor to rotate in the positive (+) direction. During the operation of the motor 156, the sensor 166 mounted on the motor detects the rotation angle of the output shaft and gives feedback to the controller, After the output shaft rotates at the set angle, the controller controls the motor 156 to stop the rotation.

Claims (7)

The presser foot 165 is horizontally mounted on one side of the presser foot 165. The presser foot 165 is adjusted in height by the presser foot drive block 163 and the presser foot drive block 163 is moved to the presser foot drive connecting rod 169 The other end of the presser foot lever is driven by an eccentric cam 157 and the eccentric cam 157 is hingedly engaged with the other end of the presser foot driving coupling rod 169 and the presser lever 162, The driving shaft 151 is driven by a motor 156 and the driving shaft 151 is rotated by rotating the presser foot driving pin 155 in cooperation with a cam connecting rod mechanism,
The cam connecting rod mechanism includes a driving cam 168 fixed to the driving shaft 151 and a first connecting rod 152 hinged to one end of the driving cam 151. The other end of the first connecting rod and the second connecting rod 153 The other end of the second connecting rod and the presser foot driving hinge pin 155 are fixed,
A triangular plate 158 of an isosceles triangle is provided on one side of the driving cam 168. A corner of the base of the triangular plate is connected to the driving shaft 151 to rotate and the pin of the presser foot driving hinge 155 is rotated, Of the embroidery machine is connected to another angle of the embroidery machine. delete delete The method according to claim 1,
Wherein a circular hole is provided at the other end of the presser foot lever, and the eccentricity is mounted in the circular hole. The method according to claim 1,
Wherein a driving gear (150) is mounted on an output shaft of the motor (156), a driven gear (154) is mounted on the driving shaft, and the driven gear is engaged with the driven gear A device that automatically adjusts the height of the presser foot. delete delete
KR1020140084759A 2014-05-13 2014-07-07 Apparatus and method automatically adjusting the height of presser foot of the embroidery machine KR101588373B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410200854.4A CN103952871B (en) 2014-05-13 2014-05-13 Presser foot of embroidery machine height automatic regulating apparatus and method
CN201410200854.4 2014-05-13

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KR20140105419A KR20140105419A (en) 2014-09-01
KR101588373B1 true KR101588373B1 (en) 2016-01-27

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CN (1) CN103952871B (en)
WO (1) WO2015172422A1 (en)

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CN106811878A (en) * 2016-12-26 2017-06-09 义乌市特轩贸易有限公司 A kind of presser foot device and machine head of embroidery machine
CN106521819A (en) * 2016-12-28 2017-03-22 浙江绅仕镭集团有限公司 Head structure and knitting machine
CN110485078B (en) * 2019-07-10 2024-03-12 浙江信胜科技股份有限公司 Device with auxiliary presser foot and presser foot protection function and embroidery machine
CN110318179A (en) * 2019-07-25 2019-10-11 浙江镨美科智能刺绣设备有限公司 A kind of height-adjustable mechanism of the presser feet of embroidery machine
CN111705444B (en) * 2020-06-28 2021-09-24 马秀珍 Independent presser foot transmission mechanism, embroidery machine head transmission mechanism and computerized embroidery machine
CN112411042B (en) * 2020-10-20 2022-07-05 诸暨玛雅电器机械有限公司 Presser foot self-adaption method
CN112663236A (en) * 2020-12-23 2021-04-16 浙江信胜科技股份有限公司 Embroidery machine
CN112663235A (en) * 2020-12-23 2021-04-16 浙江信胜科技股份有限公司 Multi-needle presser foot embroidery machine head and embroidery machine
CN112663234A (en) * 2020-12-23 2021-04-16 浙江信胜科技股份有限公司 Embroidery machine head and embroidery machine
CN113293539B (en) * 2021-06-20 2022-05-06 汝州玛雅机电科技有限公司 Embroidery machine needle bar drive control method, control system and readable storage medium
CN116103851B (en) * 2022-12-14 2024-05-07 浙江兆山机电有限公司 Embroidery machine presser foot needle bar control device

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Publication number Publication date
CN103952871B (en) 2016-03-02
KR20140105419A (en) 2014-09-01
CN103952871A (en) 2014-07-30
WO2015172422A1 (en) 2015-11-19

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