CN1271033A - Sewing machine for eyelet - Google Patents
Sewing machine for eyelet Download PDFInfo
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- CN1271033A CN1271033A CN 00106858 CN00106858A CN1271033A CN 1271033 A CN1271033 A CN 1271033A CN 00106858 CN00106858 CN 00106858 CN 00106858 A CN00106858 A CN 00106858A CN 1271033 A CN1271033 A CN 1271033A
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Abstract
To provide a sewing machine for sewing a buttonhole by which a no. of variations for eyelet buttonhole sewing stitches can be done by a simple setting. A buttonhole machine which forms eyelet buttonhole sewing stitches u0 contg. left and right side sewing-up parts u1 and u2 and top and bottom radial shape parts u3 and u4 by an electric control. In addition, a storing means for respectively storing up and down length related data which can define the radial length in the up and down direction of the radial shape parts u3 and u4 and left and right length related data which can define the radial length in the left and right direction of the radial shape parts u3 and u4, a set inputting means which can input the up and down length related data, and a controlling means wherein based on the up and down length related data and the left and right length related data, a needle location position is operated in such a way that the contour of the outer periphery of the radial shape part becomes an ellipsoidal shape in which either one of the radial length of up and down direction and the radial length of left and right direction of the radial shape part is the major axis and another one is the minor axis and sewing control which locates a needle at a needle location position obtd., are provided.
Description
The present invention relates to a kind of Buttonhole sewing machine that is used to form the minute hand aperture seam of buttonhole.
Be used for forming the minute hand aperture seam of buttonhole and form the Buttonhole sewing machine of buttonhole of middle body of minute hand seam of buttonhole open in JP-A-11-9863 for example by applicant of the present invention by electrical control.
The Buttonhole sewing machine of the above-mentioned type be arranged to control cloth along the displacement of Y direction, control pin along change in location perpendicular to the mobile baseline of the sewing quantity of the directions X of Y direction and control pin and analog.Like this, the minute hand of buttonhole is sewn on the precalculated position on the object of desire sewing and forms.
Traditional Buttonhole sewing machine has a guidance panel, and this panel can be provided with polytype data item.Like this, the shape and size of the minute hand of buttonhole seam just can change.The result is that the position that pin moves down can be according to calculating from polytype data item of guidance panel input.Carry out the sewing operation that electrically operated cloth mobile device and pin mobile device just can carry out the buttonhole seam according to result of calculation.
The Sewing machines sea of the above-mentioned type can form the minute hand aperture seam u0 of buttonhole as shown in Figure 5, and described buttonhole is made up of right side and left side sewing part u1 and u2 and upper and lower aperture part u3 and u4.
When traditional Buttonhole sewing machine formation buttonhole minute hand aperture as shown in Figure 5 stitched, each aperture part u3 and u4 only limited to semicircle.Therefore, if the width of each right side and left side sewing part u1 and u2 has determined that then the size and dimension of each aperture part u3 and u4 has just been determined according to fixed width.That is, the shape of the minute hand aperture of buttonhole seam changes unsatisfactorily.Like this, produced the problem that can't satisfy changeable needs.
Therefore, the purpose of this invention is to provide a kind of Buttonhole sewing machine, it can automatically form buttonhole minute hand seam by electrical control, and forms changeable buttonhole minute hand aperture seam by being provided with simply.
In order to achieve the above object, the described scheme of claim 1 according to the present invention, a kind of Buttonhole sewing machine is provided, be used for forming the minute hand aperture seam of a buttonhole by electrical control, described buttonhole comprises right side and left side sewing part and the little bore portion at least one upper and lower, described Buttonhole sewing machine comprises: storage device, be used to store about length and can determine described little bore portion length data and about width and the data that can determine the width of described little bore portion; Input unit is set, and it can import the data about length; Calculation element is used for calculating the position that pin moves down in the following manner according to described length data and width data, and promptly the right-hand member of at least one little bore portion in upper and lower and left end are made and be essentially ellipse arc or circular arc completely; And control device, be used to control sewing operation, described pin is moved down on the position that is calculated by described calculation element.
The described scheme of claim 1 of the present invention is configured to import the form about length data, and it can change the shape of little bore portion, makes the shape of little bore portion reach the oval or horizontally extending elliptical shape that lengthwise extends.
Notice that " about the data of length " can be directly to determine the data of the diameter of little bore portion, for example, about the data of the whole length of buttonhole minute hand aperture seam with about the data of the length of side sewing part, just directly indicate the perpendicular diameter of little bore portion and the data of radius.For example, about the data of the whole length of buttonhole minute hand aperture seam with obtain the diameter of little bore portion about the data of the length of side sewing part can be by deducting side sewing part from whole length data the data of length.Data about width can be to utilize its data that can directly determine the laterally direct and radius of aperture, promptly directly indicate the data of the trans D and the radius of aperture.Be used for indirectly determining that the data of flow process comprise: the width data of each side sewing part, and will about the width of side sewing part with that range data addition between buttonhole and side sewing partly the data that obtain.
" the elliptic arc shape of each aperture part outer end, upper and lower " be arbitrary length of for example little bore portion or trans D as major axis and another length as the formed elliptical shape of minor axis.Also can adopt the elliptical shape of inclination.
The statement of " right-hand member of at least one little bore portion in upper and lower and left end are made and be essentially ellipse arc or circular arc completely " comprises the pattern that is partly formed by the upper and lower aperture, and the perpendicular diameter of two little bore portions by being arranged in the upper and lower part is set to differently mutually make the little bore portion in upper and lower have different length.Another kind of pattern is to constitute like this, promptly makes the right side part of each little bore portion in upper and lower different mutually with left part by the width of side sewing part or the distance between buttonhole and each side sewing part are made difference.Certainly, the little bore portion in upper and lower also can have identical elliptical shape or identical positive toroidal.Little bore portion both can be in top, also can be in the bottom.
Described another program of claim 2 according to the present invention, Buttonhole sewing machine as claimed in claim 1 has following structure: the seam of little bore portion is made of the outer end of many lines that radially extend from the center of described seam to described seam, also provide: storage device, be used to store the data about the number of RADIAL, these data are relevant in many lines that radially extend; Input unit is set, it can import the data about the number of described RADIAL, and described calculation element calculates the position that pin moves down in the following manner according to the number data of described RADIAL, and promptly the number of the many lines that radially extend the outer end of the described seam of mind-set from described seam is corresponding to the data of the number of described RADIAL.
The described scheme of claim 2 according to the present invention, radially the value of setting of the number of many sutures of the little bore portion of Yan Shening can change.The result is that the shape of little bore portion can change.
Fig. 1 is the stereogram of having represented according to the described Buttonhole sewing machine shape of one embodiment of the invention;
Fig. 2 has represented to be used for the mechanism of Buttonhole sewing machine of mobile cloth and the stereogram of the mechanism that is used for vertical mobile pin;
Fig. 3 is a stereogram of having represented to be used for the needle sewing machine structure of the mechanism of vertical mobile pin and Buttonhole sewing machine;
Fig. 4 is the chart of expression from the parameter of guidance panel input;
Fig. 5 is the chart of the corresponding relation between each part of expression each data item shown in Figure 4 and the minute hand aperture seam that is used for buttonhole;
Fig. 6 has represented that pin moves down and be included in each position in the sewing pattern of being made by Buttonhole sewing machine shown in Figure 1;
Fig. 7 has represented that pin moves down and be included in another embodiment of each position in the sewing pattern of being made by Buttonhole sewing machine shown in Figure 1;
Fig. 8 has represented that pin moves down and be included in another embodiment of each position in the sewing pattern of being made by Buttonhole sewing machine shown in Figure 1, and sewing pattern is expressed as the perpendicular diameter of aperture by the form of five equilibrium;
Fig. 9 is a front view of having represented to be used to make the mechanism that the pin of Buttonhole sewing machine sews.
With reference to Fig. 1 to Fig. 7 embodiments of the invention are described below.
Comprise according to the described Buttonhole sewing machine 1 of present embodiment: the vertical also pin 9 of teeter that moves; One from lower position clamping cloth and the cloth grip block 14 that vertically moves along the cloth moving direction; One match with cloth grip block 14 be used for the cloth clamper 15 that clamping is sewed object; A top fine rule scissors 80 is used to cut off the top fine rule of cloth clamper 15 tops; A cloth cutoff tool 16 is used for forming buttonhole by cutting off the vertical cloth that moves; A control panel (not shown), it is used as a device that input quantity is set, and is used to import those data and class likelihood data are set; And a control circuit (not shown), be used to control Buttonhole sewing machine 1.Because the mechanical structure of present embodiment discloses in JP-A-11-9862, so followingly only will describe its structure simply.
As shown in Figure 2, cloth clamper 15 links to each other with cloth moving meter 23 by a linking arm 24.Cloth grip block 14 directly links to each other with cloth moving meter 23.Have tooth bar 22a on one side surface of shifting axle 22 and, make shifting axle 22 on the direction that cloth moves, to move by frame support.A Y links to each other with a pinion 20a to the stepper motor 20 that moves, and described pinion 20a can mesh with tooth bar 22a.Cloth moving meter 23 is fixed on the shifting axle 22.When Y when mobile stepper motor 20 rotates, shifting axle 22 moves in the longitudinal direction, makes cloth clamper 15 and cloth grip block 14 move in the longitudinal direction.
Shown in Fig. 2 and 3, the mechanism that is used for vertical mobile pin 9 is made up of a upper axis 6 and a crank cam 7, and upper axis 6 is arranged to following form, and promptly it can rotate under the effect of mechanical motor 5, and crank cam 7 has upper axis 6.The rotational motion of upper axis 6 is converted to vertical moving by crank cam 7, and passes to shank 8.The rotational motion of upper axis 6 passes to lower shaft 11 by connecting axle 10.Like this, the shuttle 12 that links to each other with lower shaft 11 can synchronously rotate with the vertical motion of pin 9.
Sewing machines is by constituting with lower device: a baseline mapping device that is used for laterally changing baseline; A main pin swing mechanism is used for eedle 9 is swung on perpendicular to a such direction, and promptly on this direction, shifting axle 22 moves from original baseline with predetermined swing width; A mechanism that is used to change swing width.
As shown in Figure 3, main pin swing mechanism comprises the shank swing span 18 of a supporting shank 8, makes shank 8 vertically to move, and described shank swing span 18 is also supported by equipment rack, makes shank swing span 18 to rotate around axle 18a; One connecting axle 48, it is supported by equipment rack rotationally and is parallel to upper axis 6; One connecting rod 47, the one end links to each other with connecting axle 48; One pin swing arm 49, it links to each other with the other end of connecting axle 48, and links to each other with shank swing span 18; One back shaft 53, it is arranged to by gear 51 and 52 and upper axis 6 forms of rotating synchronously; A triangular cam 54 that is positioned on the back shaft 53; And a cam lever 46, it has an end that links to each other with connecting rod 47 and has the aliquot other end that meshes with triangular cam 54.When the rotational motion of upper axis 6 passed to triangular cam 54, cam lever 46 was with predetermined swing width swing.This wobbling action transmits, and makes shank swing span 18 rotate around fulcrum 18a.Like this, pin 9 is with regard to teeter.
Main pin swing mechanism makes the action of pin swing be associated by the vertical motion of upper axis 6 with eedle 9.When eedle 9 moved downward for the first time, shank 8 was brought to a certain position on the baseline.Then, when moving downward for the second time, shank 8 is brought to and leaves the position that baseline has a predetermined swinging distance.
As shown in Figure 9, the mechanism that is used to change baseline comprises that a baseline moves stepper motor 40, and this motor 40 rotates so that baseline conversion rod 43 rotates around fulcrum 43a.Like this, the position of the fulcrum 44a of base-bar 44 such variation as shown by arrow A, the original position of the wobbling action of cam lever 46 has been determined in the position of described fulcrum 44a.Therefore, the baseline position that is used for the wobbling action of eedle 9 is moved.
The swing width mapping device has following structure, i.e. the rotation of the swing stepper motor 41 of pin can cause position such the moving as shown by arrow B of the connecting axle 44b between base-bar 44 and connector 45.Like this, the cam lever 46 that causes by the rotation of triangular cam 54, be that variation has taken place for the oscillating quantity of shank swing span 18.The result is that the oscillating quantity of eedle 9 has changed.
Should be noted that according to machine construction of the present invention to become following form that promptly shank 8 is with respect to the baseline that is provided with oscillating quantity (close reader one side in Fig. 3) swing left to be scheduled to.
The guidance panel (not shown) is provided on the upper surface of machine desktop, this Buttonhole sewing machine 1 has been installed on the described machine desktop.Like this, in the process of control sewing operation, can realize that multiple sewing is provided with the output demonstration of the input of parameter, the value of setting and the output that makes mistakes shows.
The control circuit (not shown) that is used for Buttonhole sewing machine 1 comprises a CPU (central processing unit), a ROM (read-only storage), a RAM (random access memory), one is used to write down the Y of each stepper motor rotation amount to counter, a baseline moves counter, a pin swing and mobile counter, one is used to rotate the Y of each stepper motor to stepper motor driver, a baseline moves stepper motor driver, a stepper motor that is used to swing pin, a machine motor driver that is used to control the rotation of machine motor; With one be used for machine motor encoder that the rotational movement amount of mobile of machine motor is encoded as the anglec of rotation of upper axis.
The aforesaid operations panel links to each other with control circuit by an I/O interface.Like this, operation signal is input to control circuit from guidance panel.In addition, being used for the display part on the operating operation panel and the demonstration signal of display lamp exports from control circuit.The button that is used for order cloth clamper 15 upward/downward movement be used for the start key that the order machine begins to rotate and link to each other with the I/O interface.
CPU carries out following steps according to control program, and described control program moves in the presumptive area of RAM and is stored among the ROM, and described step comprises: from the step of control panel input data; Be used to calculate the step of the position that the crown moves down according to sewing data; Make pin be moved down into the sewing steps that calculating location carries out sewing operation with being used for by controlling each stepper motor.That is, CPU has constituted calculation element and control device.
ROM comprises that storage is used for those control data and control programs by the step of CPU execution.RAM is as the work section of CPU and constituted storage device, has wherein stored to be used to sew the several data item of buttonhole minute hand seam from the control panel input.
Describe type and the content of sewing with data with reference to Figure 4 and 5 below, these data can be imported from guidance panel, and by these data, can determine the sewing pattern of buttonhole minute hand seam.
Referring to Figure 4 and 5, the title of data item and data value all are instructed in the minute hand hole of buttonhole and stitch in each part of u0.
The data of each partial-length of determining the sewing pattern (see figure 5) of buttonhole minute hand hole seam u0 comprise can be from the data item of guidance panel input and the data item shown in Fig. 4 tables of data.
That is, above-mentioned data comprise: as the cutting cloth length data of buttonhole groove u5 length, described buttonhole groove u5 has formed buttonhole; The right side data of cloudy well width, it is from sew to the right side distance of left side one end of part u1 of buttonhole groove u5; The left data of cloudy well width, it is from sew to the left side distance of right side one end of part u2 of buttonhole groove u5; The data of minute hand width, it is the transverse width of each side sewing part u1 and u2; First gap data, it is the distance from top aperture part u3 to the lower end of buttonhole groove u5; Second gap data, it is the distance from bottom aperture part u4 to the lower end of buttonhole groove u5; The pitch data of parallel portion, it is the fore-and-aft distance between two pins of side sewing part u1 and u2; The length data of radiation part, it is the length of each aperture part u3 and u4; The number data of the pin sewing operation of radiation part.
The length data of radiation part has constituted the data about length.The right side data of the data of minute hand width and cloudy well width have constituted the data about width, i.e. the radius of the axis of pitch of the right side part of each aperture part u3 and u4.The data of minute hand width and the left data of cloudy well width have constituted the data about width, i.e. the radius of the axis of pitch of the left part of each aperture part u3 and u4.
The data of length are made of following data: the data of the whole length of the minute hand aperture seam of buttonhole, the data of cutting cloth length and the data of first and second distance.Like this, the length of each aperture part u3 and u4 just can be determined.In this embodiment, upper and lower aperture part u3 has identical length with u4.Also can adopt upper and lower aperture part u3 and u4 to have the structure of different length.
The number data of pin sewing operation radially are about aperture part u3 and the u4 data of the number of sewing thread radially.Especially, above-mentioned data are data of the number of indication sewing thread, described sewing thread forms in the scope that aperture part u3 and u4 by horizontal five equilibrium form, but except the sewing thread k0 and k180 of angulation θ=0 of initial point 0 beginning ° and angle θ=180 °, and except the sewing thread k90 and k270 of angulation θ=90 ° and angle θ=270 °.For example, sewing pattern shown in Figure 5 has the number data of the radial needle sewing operation that is designated as " 3 ".
The operator who is fit to the described guidance panel of operation can be provided with and import data item.The data of each data item can be imported the data relevant with a plurality of patterns in advance by the operator and be provided with the operation of selecting a pattern from a plurality of patterns.
Referring to Fig. 6, below calculation procedure will be described, described step be used to calculate the crown according to each from position that the data of the data item of guidance panel input move down (be used for position P0 that the pin of top aperture part u3 moves down to P10).
Being used for calculating pin, to move down and be included in the step of position of sewing pattern as follows: after user's input and selection are provided with data, be used to indicate the startup button of sewing action beginning to be pressed, carry out calculating operation to start CPU.
Move down and constitute the position P of top aperture part u3 at pin
0To P
10Between, can will constitute exterior contour Q
1And Q
2Oval five equilibrium and constitute exterior contour Q
1And Q
2On position P
1, P
3, P
5, P
7, P
9Because top aperture part u3 constitutes sometimes like this, promptly Tuo Yuan right side part has different shapes with left part, so right side part and left part will be calculated respectively.
That is the right side outline Q that obtains by horizontal partition aperture part u3,
1Be that a major and minor axis radius is respectively b and a
1Ellipse.Therefore, exterior contour Q
1By point (Xn Yn) forms, described point (Xn, Yn) be positioned at XY coordinate with initial point O (X: laterally, Y: vertically) and satisfy following equation (1) and (2):
(Xn/a
1)
2+(Yn/b)
2＝1 (1)
Xn＞0，Yn＞0 (2)
Wherein, radius a
1Be length a by the indication of minute hand width data
0With the length L of indicating by the right side data of cloudy well width
1Sum.
Be positioned at exterior contour Q
1On the number that moves down of pin be arranged to the number data of radial needle sewing operation.The position that pin moves down can be determined under the following conditions.In this embodiment, calculation procedure is carried out as follows, promptly at outline Q
1And Q
2On the position that moves down of pin with central angle θ five equilibrium.Therefore, when the number data of radial needle sewing operation were " t=2 ", cutting operation carried out with central angle " 90 °/(t+1) ".Like this, following two angles have been obtained with following equation (3) expression.
θn?＝30°，60° (3)
Be positioned at that profile Q1 goes up and the point that constituted the angle θ n at the center that arises from can be represented by following equation (4):
Yn＝Xn*tan(θn) (4)
According to the condition of equation (1), can determine that pin moves down and be included in position P7 in half part of aperture part u3 right side, top to P9 to (4) expression.
Equally, the left side outline Q2 that obtains by horizontal partition aperture part u3 is that a major and minor axis radius is respectively b and a
2Ellipse.Therefore, exterior contour Q
2By point (Xn Yn) forms, described point (Xn, Yn) be positioned at XY coordinate with initial point 0 (X: laterally, Y: vertically) and satisfy following equation (5) and (6):
(Xn/a
2)
2+(Yn/b)
2＝1 (5)
Xn＜0，Yn＞0 (6)
Wherein, radius a
2Be length a by the indication of minute hand width data
0With the length L of indicating by the left data of cloudy well width
2Sum.
According to the number that the pin that is positioned on the exterior contour Q2 moves down, be provided with the number data of radial needle sewing operation, when the number data of radial needle sewing operation were " t=2 ", cutting operation carried out with central angle " 90 °/(t+1) ".Like this, following two angles have been obtained with following equation (7) expression.
θn＝120°，150° (7)
According to the condition of equation (4), can determine that pin moves down and be included in position P in half part of top aperture part u3 left side to (7) expression
1To P
3
Although top aperture part u3 has been arranged to ellipse, when a1=b or a2=b, the coordinate of exterior contour can be indicated circular certainly.
Pin is moved down into the outline Q of top aperture part u3
1And Q
2On center P5 the time, position P5 with the X coordinate promptly (X, Y)=(0, b) expression.
Pin is moved down into the center P0 of top aperture part u3, P2, and P4, P6, when P8 and P10, calculate with each right side of the cloudy well width that strides across initial point O and the Along ent of left side scope these positions.
That is, according to the determined outline Q of the number data of radial needle sewing operation
1On the number that moves down, when the value of the number data indication of radial needle operation satisfied " t=2 ", the left end that the interval that pin moves down at every turn can be by the part u1 that sews to the right side from initial point 0 was with " t+0.5 " divide length L equally
1And realize.Notice that "+0.5 " is the gap (the position P4 that pin moves down and the zone between the P6) of considering the middle body between right side part and the left part and the value that obtains, because the number that moves down is an even number for right side part and left part.The interval that moves down the zone of the part u2 that sews to the left side from initial point 0 can be by dividing length L equally in the end with " t+0.5 " to the right
2Realize.
According to the interval that moves down, can obtain the position P0 that pin moves down in middle section, P2, P4, P6, the coordinate of P8 and P10.
The position that pin moves down in the middle section of aperture part u3 and u4 can form above-mentioned sewing pattern.Form as an alternative, these positions can be the points that arises from the line segment on the circle of cloudy well width of initial point 0 or the ellipse or that be similar to outline, as shown in Figure 7.Although omitted computational methods in the specification, in-profile can with obtain exterior contour Q
1And Q
2The method similar methods obtain.Like this, the position R2 that in-profile moves down by those pins are set, R4, R6 and R8 and by five equilibrium.
As shown in Figure 6, this embodiment is configured to following form, promptly according to the number data of aperture pin sewing operation, divides exterior contour Q equally with central angle θ
1And Q
2On the position that moves down of pin, thereby calculate.Form as an alternative, the embodiment that Fig. 8 represents has adopted following method, promptly according to the number data of aperture pin sewing operation, divides the perpendicular diameter of little bore portion equally and calculates the position that pin moves down.
When the number data value of aperture pin sewing operation was t=2, the perpendicular diameter of little bore portion was with b/ (t+1) five equilibrium.Profile Q like this, externally
1On, the Y coordinate of the position that pin moves down is the value of expressing with following equation:
Y
9＝b/3，Y
7＝2b/3 (8)
Be included in the position P that the pin of right side in half of top aperture u3 moves down
7And P
9Can be according to equation (1), (2) and (8) are determined.Other positions that pin moves down also can be calculated with method similar to the aforementioned embodiment; Therefore, omitted description here to it.
Although this paper has described to obtaining the computational methods of the position that pin moves down in the aperture part u3 of top, also can similarly obtain the computational methods of the position that pin moves down in the aperture part u4 of bottom.
Similar to the method that conventional art adopts, also can calculate the position that the pin in side sewing part moves down.
After the position that the pin that has obtained sewing pattern by the aforementioned calculation method moves down, begin to carry out sewing operation.CPU begins to control so that suitably the control step motor rotates.Like this, pin in turn moves to the position that the pin that has drawn moves down.The result has stitched out according to the determined sewing pattern of data is set.
As mentioned above, Buttonhole sewing machine 1 according to present embodiment, be arranged to import the form of length data of the radiation part of the perpendicular diameter that is used to indicate each aperture part u3 and u4, this Sewing machines 1 can satisfy the difformity of aperture part u3 and u4, for example, aperture part u3 and u4 can make the ellipse of vertically extending ellipse or horizontal expansion.
The above-mentioned aperture part u3 that radially extends and the number of a plurality of sewing threads among the u4 can also change by the number data that the radial needle sewing operation is set.Therefore, the shape of aperture part u3 and u4 can be different.
Notice that the present invention is not limited to according to the described Buttonhole sewing machine 1 of present embodiment.If allow clearly to define the vertical and trans D of little bore portion about the data of length and data, then can adopt any data about width.The sewing pattern of the little bore portion of minute hand aperture seam is not limited to the pattern that is made of the seam of two points that connect mid portion and outline part.For example, the position that can take pin to move down is arranged on the form between mid portion and the outline, the form of perhaps taking outline to be made of seam.Like this, just can adopt multiple pattern.
The described scheme of claim 1 according to the present invention has been imported the length data about the perpendicular diameter of indication aperture, and the shape that this can change little bore portion makes the shape of little bore portion make the oval or laterally oval form of lengthwise.
The described scheme of claim 2 according to the present invention can change radially the number of many sewing threads in the little bore portion that extends.The shape of so little bore portion can have more variation.
Claims (2)
1. a Buttonhole sewing machine is used for the minute hand aperture seam by a buttonhole of electrical control formation, and described buttonhole comprises right side and left side sewing part and the little bore portion at least one upper and lower, and described Buttonhole sewing machine comprises:
Storage device, be used to store about length and can determine described little bore portion length data and about width and the data that can determine the width of described little bore portion;
Input unit is set, and it can import the data about length;
Calculation element is used for calculating the position that pin moves down in the following manner according to described length data and width data, and promptly the right-hand member of at least one little bore portion in upper and lower and left end are made and be essentially ellipse arc or circular arc completely; With
Control device is used to control sewing operation, and described pin is moved down on the position that is calculated by described calculation element.
2. Buttonhole sewing machine according to claim 1 is characterized in that, the seam of described little bore portion is made of the outer end of many lines that radially extend from the center of described seam to described seam,
Provide: storage device, be used to store data about the number of described RADIAL, these data are relevant in many lines that radially extend,
Input unit is set, and it can import the data about the number of described RADIAL, and
Described calculation element calculates the position that pin moves down in the following manner according to the number data of described RADIAL, and promptly the number of the many lines that radially extend the outer end of the described seam of mind-set from described seam is corresponding to the data of the number of described RADIAL.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP112634/1999 | 1999-04-20 | ||
| JP11263499A JP4275800B2 (en) | 1999-04-20 | 1999-04-20 | Button hole sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1271033A true CN1271033A (en) | 2000-10-25 |
| CN1143016C CN1143016C (en) | 2004-03-24 |
Family
ID=14591645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB00106858XA Expired - Lifetime CN1143016C (en) | 1999-04-20 | 2000-04-20 | Sewing machine for eyelet |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4275800B2 (en) |
| CN (1) | CN1143016C (en) |
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| CN100439588C (en) * | 2001-09-14 | 2008-12-03 | 重机公司 | Sewing machine for locking button hole |
| CN100443652C (en) * | 2002-05-10 | 2008-12-17 | 兄弟工业株式会社 | Button hole sewing machine |
| CN101343819B (en) * | 2007-07-09 | 2013-03-06 | Juki株式会社 | Sewing needle meeting device of chain seam sewing machine |
| CN111636155A (en) * | 2020-06-09 | 2020-09-08 | 拓卡奔马机电科技有限公司 | Buttonhole bottom line consumption calculation method of buttonholing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5059264B2 (en) * | 2001-09-10 | 2012-10-24 | Ｊｕｋｉ株式会社 | Buttonhole sewing machine |
| JP4799844B2 (en) * | 2004-10-12 | 2011-10-26 | Ｊｕｋｉ株式会社 | Hole sewing machine |
| JP5405051B2 (en) * | 2008-05-26 | 2014-02-05 | 株式会社イノアックコーポレーション | Headrest epidermis |
| JP2013252159A (en) * | 2012-06-05 | 2013-12-19 | Juki Corp | Buttonhole sewing machine |
-
1999
- 1999-04-20 JP JP11263499A patent/JP4275800B2/en not_active Expired - Fee Related
-
2000
- 2000-04-20 CN CNB00106858XA patent/CN1143016C/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439588C (en) * | 2001-09-14 | 2008-12-03 | 重机公司 | Sewing machine for locking button hole |
| CN100443652C (en) * | 2002-05-10 | 2008-12-17 | 兄弟工业株式会社 | Button hole sewing machine |
| CN101343819B (en) * | 2007-07-09 | 2013-03-06 | Juki株式会社 | Sewing needle meeting device of chain seam sewing machine |
| CN111636155A (en) * | 2020-06-09 | 2020-09-08 | 拓卡奔马机电科技有限公司 | Buttonhole bottom line consumption calculation method of buttonholing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1143016C (en) | 2004-03-24 |
| JP4275800B2 (en) | 2009-06-10 |
| JP2000300873A (en) | 2000-10-31 |
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Granted publication date: 20040324 |