WO2015172422A1

WO2015172422A1 - Device and method for automatically adjusting height of presser foot of embroidery machine

Info

Publication number: WO2015172422A1
Application number: PCT/CN2014/080400
Authority: WO
Inventors: 王海江; 田桂郁
Original assignee: 诸暨市新信机电科技有限公司
Priority date: 2014-05-13
Filing date: 2014-06-20
Publication date: 2015-11-19
Also published as: CN103952871B; CN103952871A; KR101588373B1; KR20140105419A

Abstract

A device and method for automatically adjusting the height of a presser foot of an embroidery machine. A drive shaft (151) is horizontally arranged at one side of a presser foot (165). The presser foot (165) is driven by a presser foot drive block (163). The presser foot drive block (163) is hinged to a presser foot drive connecting rod (169). The presser foot drive connecting rod (169) is hinged to one end of a presser foot lever (162). Another end of the presser foot lever (162) is driven by an eccentric cam (157). The eccentric cam (157) is installed on a presser foot drive hinge pin (155). The drive shaft (151) is driven by a motor (156). The drive shaft (151) drives the presser foot drive hinge pin (155) to rotate via a cam connecting rod mechanism. A controller controls the motor (156) to rotate according to a rotation angle corresponding to a set presser foot height, and enables the drive shaft (151) to rotate. The cam connecting rod mechanism and the presser foot drive hinge pin (155) are linked. When the presser foot drive hinge pin (155) rotates, the eccentric cam (157) fixed thereon rotates, and the movement centre of the presser foot lever (162) is simultaneously changed, driving the presser foot drive connecting rod (169) and the presser foot drive block (163) to adjust the height of the presser foot. The device and method for automatically adjusting the height of a presser foot of an embroidery machine change the height of the presser foot in a timely manner according to an operation form, and avoid stopping for adjustment, thereby increasing production efficiency and production quality.

Description

技术领域 Technical field

本发明涉及一种刺绣机，尤其是一种在绣花作业时，根据作业物的厚度，可以自动控制压脚高度的装置。 The present invention relates to an embroidery machine, and more particularly to a device for automatically controlling the height of a presser foot according to the thickness of a work object during an embroidery operation.

背景技术 Background technique

刺绣机的压脚分为三种，一种是由针杆和针杆架来调节上下高度的针杆架型，一种是在针杆和强制缓冲体上联动的缓冲型及由另外的驱动体来单独驱动的独立型。 The presser foot of the embroidery machine is divided into three types, one is a needle bar type which adjusts the upper and lower height by a needle bar and a needle bar frame, and the other is a buffer type which is linked on the needle bar and the forced buffer body and is driven by another. A separate type that is driven separately.

一般常用的是前两种方法，针杆架型是由针杆架和压脚之间的垫片来决定整体高度，存在噪音大，难以改变压脚高度的缺点。 The first two methods are commonly used. The needle bar type is determined by the spacer between the needle bar frame and the presser foot, and the noise is large, and it is difficult to change the height of the presser foot.

缓冲型是由针杆和缓冲体来联动压脚的高度，缓冲体由带动任意轴移动的动作杆来驱动。 The cushion type is the height of the presser foot linked by the needle bar and the buffer body, and the buffer body is driven by an action lever that moves any axis.

独立型用在只需要很短的行程的绣花机或缝纫机上，跳跃欲动时，需要停止主轴。 The stand-alone type is used on embroidery machines or sewing machines that require only a short stroke. When jumping, you need to stop the spindle.

综上，现有技术中三种形式的压脚，很难根据作业形态而及时改变高度。即使改变，也需要先停止刺绣机然后进行长时间的调整方可。 In summary, the three types of presser feet in the prior art are difficult to change the height in time according to the working form. Even if you change it, you need to stop the embroidery machine and then make long adjustments.

发明内容 Summary of the invention

本发明所要解决的技术问题就是提供了一种刺绣机压脚高度自动调整装置及方法，根据作业形态而及时改变压脚高度，避免停机调整，提高生产效率和生产质量。 The technical problem to be solved by the invention is to provide an automatic adjusting device and method for the height of the presser foot of the embroidery machine, and to change the height of the presser foot in time according to the working form, avoiding the shutdown adjustment, improving the production efficiency and the production quality.

为解决上述技术问题，本发明采用如下技术方案：刺绣机压脚高度自动调整装置，在压脚一侧水平设置一驱动轴，压脚由一压脚驱动块带动调整高度，所述压脚驱动块铰接一压脚驱动连杆，所述压脚驱动连杆与压脚杠杆的一端铰接，所述压脚杠杆的另一端由偏心凸轮驱动，所述偏心凸轮安装于一压脚驱动铰销上，所述驱动轴由电机驱动，所述驱动轴通过凸轮连杆机构带动压脚驱动铰销转动。 In order to solve the above technical problem, the present invention adopts the following technical solutions: an automatic adjusting device for the presser foot height of the embroidery machine, a driving shaft is horizontally arranged on one side of the presser foot, and the presser foot is driven by a presser foot driving block to adjust the height. The presser foot driving block hinges a presser foot driving link, the presser foot driving link is hinged with one end of the presser foot lever, the other end of the presser foot lever is driven by an eccentric cam, and the eccentric cam is mounted on a pressure The foot drive hinge pin, the drive shaft is driven by a motor, and the drive shaft drives the presser foot to drive the hinge pin to rotate through the cam link mechanism.

优选的，所述凸轮连杆机构包括固定于驱动轴上的驱动凸轮以及一端与驱动凸轮铰接的第一连杆，第一连杆的另一端与第二连杆的一端铰接，第二连杆的另一端与压脚驱动铰销固定。 Preferably, the cam link mechanism includes a driving cam fixed to the driving shaft and a first connecting rod hinged at one end to the driving cam, and the other end of the first connecting rod is hinged with one end of the second connecting rod, and the second connecting rod The other end is fixed to the presser foot drive hinge pin.

优选的，所述驱动凸轮一侧设有一等腰三角形的三角板，所述三角板底部一角转动连接于驱动轴上，压脚驱动铰销转动连接于三角板底部另一角上。 Preferably, one side of the driving cam is provided with an isosceles triangular triangular plate, and the bottom of the triangular plate is rotatably connected to the driving shaft, and the pressing foot driving hinge pin is rotatably connected to the other corner of the bottom of the triangular plate.

优选的，所述压脚杠杆的另一端设有圆孔，所述偏心凸轮设于所述圆孔内。优选的，所述电机的输出轴上安装有主动齿轮，所述驱动轴上安装有从动齿轮，所述主动齿轮与从动齿轮啮合传动。 Preferably, the other end of the presser foot lever is provided with a circular hole, and the eccentric cam is disposed in the circular hole. Preferably, a driving gear is mounted on an output shaft of the motor, a driven gear is mounted on the driving shaft, and the driving gear is meshed with the driven gear.

本发明还提供了使用上述刺绣机压脚高度自动调整装置对刺绣机压脚高度进行自动调整方法，在控制器上按照针杆的不同输入相应的设定压脚高度，当换色并改变针杆时，控制器控制电机根据设定压脚高度所对应的转动角度旋转，并使驱动轴旋转，然后，凸轮连杆机构及压脚驱动铰销联动，压脚驱动铰销旋转时，固定在其上的偏心凸轮旋转，同时压脚杠杆的运动中心被改变，从而带动压脚驱动连杆及压脚驱动块调节压脚的高度。 The invention also provides an automatic adjustment method for the height of the presser foot of the embroidery machine by using the above-mentioned automatic height adjusting device of the presser foot, and correspondingly setting the height of the presser foot according to the different needle bar on the controller, when changing the color and changing the needle When the rod is used, the controller controls the motor to rotate according to the rotation angle corresponding to the height of the set foot, and rotates the drive shaft. Then, the cam link mechanism and the presser foot drive hinge pin are interlocked, and when the presser foot drives the hinge pin to rotate, it is fixed at The eccentric cam rotates thereon, and the center of movement of the presser foot lever is changed, thereby driving the presser foot drive link and the presser foot drive block to adjust the height of the presser foot.

进一歩的，在电机工作过程中，在电机上安装的感应器检测输出轴的旋转角度并反馈给控制器，当输出轴旋转到设定的角度后，控制器控制电机停止转动。 Further, during the operation of the motor, the sensor mounted on the motor detects the rotation angle of the output shaft and feeds it back to the controller. When the output shaft rotates to the set angle, the controller controls the motor to stop rotating.

本发明的技术方案中，控制器控制电机根据设定压脚高度所对应的转动角度旋转，并使驱动轴旋转，然后，凸轮连杆机构及压脚驱动铰销联动，压脚驱动铰销旋转时，固定在其上的的偏心凸轮旋转，同时压脚杠杆的运动中心被改变，从而带动压脚驱动连杆及压脚驱动块调节压脚的高度。 In the technical solution of the present invention, the controller controls the motor to rotate according to the rotation angle corresponding to the set foot height, and rotates the drive shaft, and then the cam link mechanism and the presser foot drive hinge pin linkage, the presser foot drive When the moving hinge pin rotates, the eccentric cam fixed thereto rotates, and the center of movement of the presser foot lever is changed, thereby driving the presser foot driving link and the presser foot driving block to adjust the height of the presser foot.

因而本发明能够根据作业形态而及时改变压脚高度，避免停机调整，提高生产效率和生产质量。 Therefore, the present invention can change the height of the presser foot in time according to the working form, avoiding the shutdown adjustment, improving the production efficiency and the production quality.

附图说明 DRAWINGS

下面结合附图和具体实施方式对本发明作进一歩描述： The present invention will be further described below in conjunction with the drawings and specific embodiments:

图 1为刺绣机压脚高度自动调整装置的结构示意图一； Figure 1 is a schematic structural view 1 of the automatic adjusting device for the presser foot height of the embroidery machine;

图 2为刺绣机压脚高度自动调整装置的结构示意图二； Figure 2 is a schematic structural view 2 of the automatic adjusting device for the presser foot height of the embroidery machine;

图 3为刺绣机压脚高度自动调整装置的结构示意图三； Figure 3 is a schematic structural view 3 of the automatic adjusting device for the presser foot height of the embroidery machine;

图 4为刺绣机压脚高度自动调整方法的原理示意图。 Fig. 4 is a schematic diagram showing the principle of the automatic adjustment method of the presser foot height of the embroidery machine.

具体实施方式 detailed description

首先，结合图 1至图 3具体说明本发明中的刺绣机压脚高度自动调整装置，在压脚 165—侧水平设置一驱动轴 151，压脚 165由一压脚驱动块 163带动调整高度，所述压脚驱动块 163铰接一压脚驱动连杆 169，所述压脚驱动连杆 169与压脚杠杆 162的一端铰接，所述压脚杠杆 162的另一端由偏心凸轮 157驱动，所述偏心凸轮 157安装于一压脚驱动铰销 155上，所述驱动轴 151 由电机 156 驱动，所述驱动轴 151通过凸轮连杆机构带动压脚驱动铰销转动。 First, the automatic presser foot height adjusting device of the present invention is specifically described with reference to FIG. 1 to FIG. 3. A driving shaft 151 is horizontally disposed on the presser foot 165 side, and the presser foot 165 is driven by a presser foot driving block 163 to adjust the height. The presser foot driving block 163 is hinged with a presser foot driving link 169, and the presser foot driving link 169 is hinged with one end of the presser foot lever 162, and the other end of the presser foot lever 162 is driven by an eccentric cam 157. The eccentric cam 157 is mounted on a presser foot driving hinge pin 155. The drive shaft 151 is driven by a motor 156, and the drive shaft 151 drives the presser foot to drive the hinge pin to rotate by the cam link mechanism.

所述凸轮连杆机构包括固定于驱动轴上的驱动凸轮 168 以及一端与驱动凸轮铰接的第一连杆 152，第一连杆的另一端与第二连杆 153的一端铰接，第二连杆 153的另一端与压脚驱动铰销 155固定。所述电机的输出轴上安装有主动齿轮 150，所述驱动轴上安装有从动齿轮 154，所述主动齿轮与从动齿轮啮合传动。 The cam link mechanism includes a drive cam 168 fixed to the drive shaft and a first link 152 hinged at one end to the drive cam, the other end of the first link being hinged to one end of the second link 153, the second link The other end of the 153 is fixed to the presser foot driving hinge pin 155. A drive gear 150 is mounted on the output shaft of the motor, and a driven gear 154 is mounted on the drive shaft, and the drive gear meshes with the driven gear.

该刺绣机压脚高度自动调整装置的工作原理为： The working principle of the automatic height adjusting device of the embroidery machine presser foot is:

电机 156通过输出轴输出扭矩，主动齿轮 150与从动齿轮 154啮合实现减速驱动，从动齿轮 154带动驱动轴 151转动，驱动轴 151带动驱动凸轮 168转动相应角度，然后，第一连杆 152、第二连杆 153及压脚驱动铰销 155顺次动作，偏心凸轮 157通过调节压脚杠杆 162圆弧运动的中心；改变偏心的中心位置，从而使压脚 165的高度发生改变。 The motor 156 outputs torque through the output shaft, and the driving gear 150 meshes with the driven gear 154 to achieve reduction. The speed drive, the driven gear 154 drives the drive shaft 151 to rotate, the drive shaft 151 drives the drive cam 168 to rotate by a corresponding angle, and then the first link 152, the second link 153 and the presser foot drive hinge pin 155 are sequentially operated, the eccentric cam 157 adjusts the center of the circular motion of the presser foot lever 162; changes the center position of the eccentricity, thereby changing the height of the presser foot 165.

所述驱动凸轮 168—侧设有一等腰三角形的三角板 158，所述三角板底部一角转动连接于驱动轴上，压脚驱动铰销转动连接于三角板底部另一角上。该三角板是相对固定的，但驱动轴及压脚驱动铰销均可相对于该三角板转动。 The driving cam 168 is provided with an isosceles triangular triangular plate 158. The bottom of the triangular plate is rotatably connected to the driving shaft, and the pressing leg driving hinge pin is rotatably connected to the other corner of the bottom of the triangular plate. The set square is relatively fixed, but the drive shaft and the presser foot drive hinge pin are rotatable relative to the set square.

所述压脚杠杆的另一端设有圆孔，所述偏心凸轮 157设于所述圆孔内。如图 4所示，偏心凸轮 157转动时，偏心凸轮的转动中心 A不变，但压脚杠杆的转动中心 B发生变化，在这个过程中，偏心凸轮的转动中心 A与压脚杠杆的转动中心 B的连线与水平面的夹角由 U变化为 D，同时两个状态压脚的高度产生一个压脚高度差，从而调节压脚的高度。 The other end of the presser foot lever is provided with a circular hole, and the eccentric cam 157 is disposed in the circular hole. As shown in FIG. 4, when the eccentric cam 157 rotates, the center of rotation A of the eccentric cam does not change, but the center of rotation B of the presser foot lever changes, in this process, the center of rotation A of the eccentric cam and the center of rotation of the presser foot lever The angle between the line B and the horizontal plane changes from U to D, and the height of the two state presser feet produces a height difference of the presser foot, thereby adjusting the height of the presser foot.

所述压脚驱动块 163 包括筒状体，所述筒状体的底部面向压脚侧设有向压脚方向凸出的下凸台，所述筒状体的顶部面向压脚驱动连杆侧设有上凸台，所述上凸台与压脚驱动连杆铰接。所述压脚杠杆在邻接偏心凸轮端设有与压脚杠杆垂直的侧突出部，压脚杠杆的支点设于侧突出部端部。侧突出部端部通过一销轴铰接在一凸轮 161上，该凸轮安装于一凸轮轴 160上。 The presser foot driving block 163 includes a cylindrical body, and a bottom of the cylindrical body is provided with a lower boss protruding toward the presser foot toward the presser foot side, and a top surface of the cylindrical body faces the presser foot drive link side An upper boss is provided, and the upper boss is hinged to the presser foot drive link. The presser foot lever is provided at a side adjacent to the eccentric cam end with a side protrusion perpendicular to the presser foot lever, and a fulcrum of the presser foot lever is provided at the end of the side protrusion. The side projection ends are hinged to a cam 161 by a pin which is mounted to a cam shaft 160.

另外，在电机 156上安装有感应器 166检测输出轴的旋转角度并反馈给电机的控制器。 Further, an inductor 166 is mounted on the motor 156 to detect the rotation angle of the output shaft and feed it back to the controller of the motor.

下面结合图 4具体说明刺绣机压脚高度自动调整方法，在控制器上按照针杆的不同输入相应的设定压脚高度，当换色并改变针杆时，控制器控制电机 156 根据设定压脚高度所对应的转动角度旋转，并使驱动轴 151 旋转，然后，凸轮连杆机构及压脚驱动铰销 155 联动，压脚驱动铰销旋转时，固定在其上的的偏心凸轮 157旋转，同时压脚杠杆 162的运动中心被改变，从而带动压脚驱动连杆 169及压脚驱动块 163调节压脚 165的高度。 The automatic adjustment method of the presser foot height of the embroidery machine is specifically described below with reference to FIG. 4, and the corresponding set foot height is input on the controller according to the different needle bar. When the color change and the needle bar are changed, the controller controls the motor 156 according to the setting. The rotation angle corresponding to the height of the presser foot is rotated, and the drive shaft 151 is rotated. Then, the cam link mechanism and the presser foot driving hinge pin 155 are interlocked, and the biasing pin is fixed when the presser foot drives the hinge pin to rotate. The heart cam 157 rotates while the center of motion of the presser foot lever 162 is changed, thereby causing the presser foot drive link 169 and the presser foot drive block 163 to adjust the height of the presser foot 165.

控制器控制电机进行正（+ )反（-)方向的旋转，在电机 156工作过程中，在电机上安装的感应器 166检测输出轴的旋转角度并反馈给控制器，当输出轴旋转到设定的角度后，控制器控制电机 156停止转动。 The controller controls the motor to rotate in the positive (+) inverse (-) direction. During the operation of the motor 156, the inductor 166 mounted on the motor detects the rotation angle of the output shaft and feeds back to the controller. When the output shaft rotates to the setting After the fixed angle, the controller controls the motor 156 to stop rotating.

Claims

权利要求书 Claim

1、刺绣机压脚高度自动调整装置，其特征在于：在压脚（165) —侧水平设置一驱动轴（151)，压脚（165) 由一压脚驱动块（163) 带动调整高度，所述压脚驱动块（163) 铰接一压脚驱动连杆（169)，所述压脚驱动连杆（169) 与压脚杠杆（162) 的一端铰接，所述压脚杠杆的另一端由偏心凸轮（157) 驱动，所述偏心凸轮（157) 安装于一压脚驱动铰销（155) 上，所述驱动轴（151) 由电机（156)驱动，所述驱动轴（ 151 )通过凸轮连杆机构带动压脚驱动铰销（ 155 ) 转动。 1. The automatic adjusting device for the presser foot height of the embroidery machine is characterized in that: a driving shaft (151) is horizontally arranged on the side of the presser foot (165), and the presser foot (165) is driven to adjust the height by a presser foot driving block (163). The presser foot driving block (163) is hinged with a presser foot driving link (169), and the presser foot driving link (169) is hinged with one end of the presser foot lever (162), and the other end of the presser foot lever is The eccentric cam (157) is mounted, the eccentric cam (157) is mounted on a presser foot driving hinge pin (155), the drive shaft (151) is driven by a motor (156), and the drive shaft (151) passes through the cam The link mechanism drives the presser foot to drive the hinge pin (155) to rotate.

2、根据权利要求 1所述的刺绣机压脚高度自动调整装置，其特征在于：所述凸轮连杆机构包括固定于驱动轴（151) 上的驱动凸轮（168) 以及一端与驱动凸轮铰接的第一连杆（152)，第一连杆的另一端与第二连杆（153) 的一端铰接，第二连杆的另一端与压脚驱动铰销（155) 固定。 2. The automatic presser foot height adjusting device according to claim 1, wherein: the cam link mechanism comprises a driving cam (168) fixed to the driving shaft (151) and one end hinged to the driving cam. The first link (152) has the other end of the first link hinged to one end of the second link (153), and the other end of the second link is fixed to the presser foot hinge pin (155).

3、根据权利要求 2所述的刺绣机压脚高度自动调整装置，其特征在于：所述驱动凸轮（168) —侧设有一等腰三角形的三角板（158)，所述三角板底部一角转动连接于驱动轴（151) 上，压脚驱动铰销（155) 转动连接于三角板底部另一角上。 3. The automatic presser foot height adjusting device according to claim 2, wherein: the driving cam (168) is provided with an isosceles triangular triangular plate (158), and the bottom of the triangular plate is rotatably connected to On the drive shaft (151), the presser foot drive hinge pin (155) is rotatably connected to the other corner of the bottom of the set plate.

4、根据权利要求 2所述的刺绣机压脚高度自动调整装置，其特征在于：所述压脚杠杆的另一端设有圆孔，所述偏心凸轮设于所述圆孔内。 4. The automatic presser foot height adjusting device according to claim 2, wherein: the other end of the presser foot lever is provided with a circular hole, and the eccentric cam is disposed in the circular hole.

5、根据权利要求 1至 4任意一项所述的刺绣机压脚高度自动调整装置，其特征在于：所述电机（156) 的输出轴上安装有主动齿轮（150)，所述驱动轴上安装有从动齿轮（154)，所述主动齿轮与从动齿轮啮合传动。 The automatic presser foot height adjusting device according to any one of claims 1 to 4, wherein: a driving gear (150) is mounted on an output shaft of the motor (156), and the driving shaft is mounted on the driving shaft A driven gear (154) is mounted, and the driving gear is meshed with the driven gear.

6、刺绣机压脚高度自动调整方法，其特征在于：在控制器上按照针杆的不同输入相应的设定压脚高度，当换色并改变针杆时，控制器控制电机根据设定压脚高度所对应的转动角度旋转，并使驱动轴旋转，然后，凸轮连杆机构及压脚驱动铰销联动，压脚驱动铰销旋转时，固定在其上的偏心凸轮旋转，同时压脚杠杆的运动中心被改变，从而带动压脚驱动连杆及压脚驱动块调节压脚的高度。6. The automatic adjustment method of the height of the presser foot of the embroidery machine is characterized in that: the corresponding set foot height is input on the controller according to the different needle bar. When the color change and the needle bar are changed, the controller controls the motor according to the set pressure. The rotation angle corresponding to the height of the foot rotates, and the drive shaft is rotated, and then the cam link mechanism and the presser foot drive When the pressing pin drives the hinge pin to rotate, the eccentric cam fixed thereon rotates, and the movement center of the presser foot lever is changed, thereby driving the presser foot driving link and the presser foot driving block to adjust the height of the presser foot.

7、根据权利要求 6所述的刺绣机压脚高度自动调整方法，其特征在于：在电机工作过程中，在电机上安装的感应器检测输出轴的旋转角度并反馈给控制器，当输出轴旋转到设定的角度后，控制器控制电机停止转动。 7. The method of automatically adjusting the height of the presser foot of the embroidery machine according to claim 6, wherein: during the operation of the motor, the sensor mounted on the motor detects the rotation angle of the output shaft and feeds back to the controller, when the output shaft After rotating to the set angle, the controller controls the motor to stop rotating.