CN107630296A - The buttonhole seam sewing guiding device of sewing machine - Google Patents
The buttonhole seam sewing guiding device of sewing machine Download PDFInfo
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- CN107630296A CN107630296A CN201710992066.7A CN201710992066A CN107630296A CN 107630296 A CN107630296 A CN 107630296A CN 201710992066 A CN201710992066 A CN 201710992066A CN 107630296 A CN107630296 A CN 107630296A
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Abstract
The invention discloses a kind of buttonhole of sewing machine to stitch sewing guiding device,The sewing machine has a sewing needle,One cloth pressing foot pin shin,An and central control unit,Buttonhole seam sewing guiding device, which includes one, includes a pin frame,The cloth pressing foot unit of one button guide plate and a sliding part,And one include a sensing module for being arranged at sliding part,One be arranged at the first trigger member of pin frame and one be arranged at button guide plate the second trigger member sensing unit,Sliding part is removably installed on cloth pressing foot pin shin,So that pin frame can move relative to the sliding part between one first sewing position and one second sewing position,When pin frame is in the first sewing position,First trigger member triggers the sensing module,Sensing module transmission signal is set to go to control the operation of sewing needle to central control unit,When pin frame is in the second sewing position,Second trigger member triggering sensing module,Sensing module transmission signal is set to go to control the operation of sewing needle to the central control unit.
Description
Technical field
The present invention relates to a kind of sewing machine, the buttonhole seam sewing guiding device of particularly a kind of sewing machine.
Background technology
The sewing machine of buttonhole seam (Buttonhole Sewing) operation can be carried out now, be required to according to the straight of button
Footpath size goes adjustment to detain circumocular sewing length, in order to reach this purpose, is arranged on except that need to open buttonhole cloth pressing foot by one
Outside on the cloth pressing foot pin shin of the sewing machine, more need especially to be arranged on a buttonhole switching on and shutting down of the head of the sewing machine with unification
Structure (such as People's Republic of China (PRC) patent of invention CN 203,049,210 U), could carry out the operation of buttonhole seam.In reality
In use, after button is installed in this and opened on buttonhole cloth pressing foot, a buttonhole of the buttonhole switching mechanism need to be switched
Bar (industry is commonly referred to as BH pull bars) is drawn out between two bar motion arms that this opens buttonhole cloth pressing foot down, to be driven in cloth
When the presser feet frame for opening buttonhole cloth pressing foot moves forward and backward, a wherein motion arm is allowed to go to hit the buttonhole changer lever so that should
Buttonhole changer lever triggers a detection switch of the buttonhole switching mechanism, and the center control for sending signal to the sewing machine is single
Member, and then the stroke of sewing is controlled, however, the design that such a buttonhole switching mechanism can not only take the head of the sewing machine is empty
Between, it can also increase assembling man-hour and the cost of the sewing machine, moreover, the buttonhole changer lever pulled out down is also easily anticipated
Sever outside.
In addition, also have sewing machine to be collocation opens buttonhole cloth pressing foot (such as HUSQVARNA using itself possess measurement function
The model DESIGNER TOPAZ 40 of VIKING companies cloth pressing foot or the model BERNINA's 580 of BERNINA companies
Cloth pressing foot) buttonhole seam operation is carried out, however, such cloth pressing foot is when in use, user needs first to go amount in a manual manner
The actual diameter size of button is surveyed, and the numerical value measured is input to the center control list of the sewing machine by man-machine interface
Member, nationality is to determine the length dimension of buttonhole seam, and hereafter, the sewing machine could proceed by button according to the length dimension of this input
The sewing operation of eye seam, therefore, such cloth pressing foot need labor to be tired of that user goes to measure the diameter of button and inputs numerical value, make
Use and inconvenient.
The content of the invention
Therefore, the purpose of the present invention, that is, a kind of sewing machine at least one shortcoming that can overcome prior art is being provided
Buttonhole seam sewing guiding device.
Then, sewing machine of the present invention buttonhole seam sewing guiding device, the sewing machine have a sewing needle that can be operated,
One cloth pressing foot pin shin, and a central control unit, buttonhole seam sewing guiding device include a cloth pressing foot unit, and a sensing list
Member.
The cloth pressing foot unit includes a pin frame, a button that the pin frame is adjustably arranged at along a fore-and-aft direction guides
Plate, and a sliding part for being movably arranged at the pin frame along the fore-and-aft direction, the pin frame have a frame leading section, and after a frame
End, the button guide plate have a front edge of board portion, and a plate rearward end, and the button guide plate is relative to the pin frame in a preparation
Position and one moved using between position, when the button guide plate is in the ready position, before the front edge of board portion is adjacent to the frame
End, when the button guide plate uses position at this, the front edge of board portion is away from the frame leading section, and between the frame leading section
Every the spacing for the diameter that one corresponds to a button, the sliding part is removably installed on the cloth pressing foot pin shin so that the pin frame can
Moved relative to the sliding part between one first sewing position and one second sewing position, when the pin frame is in the first sewing position
When putting, the sliding part is adjacent to the back end of frame portion, and is away from the button guide plate, when the pin frame is in the second sewing position
When, the sliding part is away from the back end of frame portion, and is adjacent to the button guide plate.
The sensing unit is arranged at the sensing module of the sliding part including one, one is arranged at the first trigger member of the pin frame,
And second trigger member for being arranged at the button guide plate, the sensing module and the central control unit wirelessly with it is wired
The one way in which of mode is communicated, and when the pin frame is in the first sewing position, first trigger member triggers the sensing
Module, make sensing module transmission signal go to control the operation of the sewing needle to the central control unit, when the pin frame this
During two sewing positions, second trigger member triggers the sensing module, the sensing module is transmitted signal to the central control unit
Go to control the operation of the sewing needle.
As a kind of preferred scheme, the sensing module is a kind of photoelectric sensor.
As a kind of preferred scheme, the sensing module has a pedestal for being arranged at the sliding part, and one is arranged at the base
The light reflective switch of seat, when the pin frame is in the first sewing position, first trigger member triggers the light reflective switch, makes
Light reflective switch transmission signal gives the central control unit, when the pin frame is in the second sewing position, second triggering
Part triggers the light reflective switch, the light reflective switch is transmitted signal to the central control unit.
As a kind of preferred scheme, the pin frame extends along the fore-and-aft direction with more one and positioned at the frame leading section and the frame
The side plate of the side of rearward end, the button guide plate are connected with the plate rearward end with more one and along a left and right directions towards extension
The side portions above the side plate are extended, after first trigger member is arranged at the top surface of the side plate and is adjacent to the side plate
End, first trigger member is a kind of reflecting layer, and second trigger member is adjustably arranged at the side portions simultaneously along the fore-and-aft direction
With the top surface sliding contact of the side plate, second trigger member have one on the fore-and-aft direction between first trigger member with should
Reflection trigger unit between the portions of side, when the pin frame is in the first sewing position, first trigger member is opened the light is reflective
Close projected light and be reflected back the light reflective switch, to trigger the light reflective switch, when the pin frame is in second car
When stitching position, the light that the light reflective switch is projected is reflected back light reflection by the reflection trigger unit of second trigger member
Formula switchs, to trigger the light reflective switch.
As a kind of preferred scheme, the sliding part has a pedestal for being arranged at the pin frame, and one is connected simultaneously with the pedestal
The assembly wall to be extended outwardly along the left and right directions, the assembly wall are higher than the pin frame, the base of the sensing module on an above-below direction
Seat is arranged at the assembly wall, and the pedestal of the sensing module has an accommodation space formed with a bottom opening, and the light is reflective to be opened
Pass is arranged at the accommodation space, and has a light emission part towards the bottom opening, and one towards the bottom opening light receiver.
As a kind of preferred scheme, the cloth pressing foot unit further includes a back end of frame portion for being arranged at the pin frame and the sliding part
Pedestal between flexible member, the flexible member have make the potential energy that the sliding part moves towards the back end of frame portion.
As a kind of preferred scheme, the pin frame is formed with one between the frame leading section and the back end of frame portion and along before this
Through slot from rear to extension, the sliding part with more a connecting rod for being arranged at the pedestal, the pedestal of the sliding part formed with
The one sewing opening connected with the through slot, the sewing opening are used for allowing the sewing needle to pass through with the through slot.
As a kind of preferred scheme, the side portions of the button guide plate have one to be connected and formed with one with the plate rearward end
Roof through groove, one are connected with the roof and extend the cantilever in groove along the fore-and-aft direction, and two are arranged at this
The bottom surface of roof and on the left and right directions apart from one another by guide side walls, the roof is higher than the pin frame on an above-below direction,
The cantilever has one to be located at front end and the positioning wedged block protruded down, and second trigger member is upper in the fore-and-aft direction with more one
Backstop after the front block unit before the roof, one are located at the roof on the fore-and-aft direction, and one along the fore-and-aft direction
It is connected between the forward and backward stopper and the connecting portion between such guide side walls, the reflection trigger unit is from the backstop edge
The fore-and-aft direction extends backwards, and the connecting portion has several positioning teeth groove being positioned apart from along the fore-and-aft direction in top surface, its
In positioning teeth groove and the cantilever the mutual inlay card of positioning wedged block.
As a kind of preferred scheme, when the button guide plate is in the ready position and the pin frame is in the first sewing position
When, the rear end of the reflection trigger unit of second trigger member and the light reflective switch be spaced on the fore-and-aft direction one reserve away from
From, when the button guide plate this using position and the pin frame in the first sewing position when, the reflection of second trigger member is touched
The rear end in hair portion and the light reflective switch are spaced an operation distance on the fore-and-aft direction, operation distance be equal to this it is reserved away from
From plus the spacing.
As a kind of preferred scheme, the sensing module is with more the setting pedestal and is electrically connected to the light reflective switch
With the RCA between the central control unit, the light reflective switch is led to via the RCA and the central control unit
News, the color of first trigger member are different from the color of the side plate of the pin frame, the face of the reflection trigger unit of second trigger member
Color is different from the color of the side plate of the pin frame.
The effect of of the invention, is：Utilize the design sensing unit being arranged on the cloth pressing foot unit so that sewing
Machine can cancel on head known in buttonhole switching mechanism setting, assembling man-hour and the cost of sewing machine is greatly reduced, moreover,
After button is folded between the front edge of board portion and the frame leading section by user, sewing machine can directly using the sensing unit come
The sewing length dimension of buttonhole seam is controlled, labor is not required to completely and is tired of that user goes to measure the diameter of button.
Brief description of the drawings
Other features and effect of the present invention, will clearly it be presented in the embodiment with reference to schema, wherein：
Fig. 1 is that an embodiment of the buttonhole seam sewing guiding device of sewing machine of the present invention is installed on a compress of the sewing machine
A stereo appearance figure on pin pin shin；
Fig. 2 is an incomplete stereogram, illustrates that the embodiment disassembles from the cloth pressing foot pin shin；
Fig. 3 is the control system block schematic diagram of the sewing machine；
Fig. 4 is an incomplete stereo appearance figure of the embodiment；
Fig. 5 is an incomplete three-dimensional exploded view of the embodiment；
Fig. 6 is an incomplete top view of the embodiment, illustrates that a pin frame of the embodiment is located at one first sewing position
Put, a button guide plate of the embodiment is in a ready position；
Fig. 7 is the sectional view intercepted along the line VII-VII in Fig. 6；
Fig. 8 is the sectional view intercepted along the line VIII-VIII in Fig. 7；
Fig. 9 is a view for being similar to Fig. 6, illustrates that the pin frame makes in the first sewing position, the button guide plate one
Use position；
Figure 10 is an incomplete side view, illustrates that the embodiment is installed on the cloth pressing foot pin shin, and the pin frame is located at
The first sewing position；
Figure 11 is a view for being similar to Figure 10, illustrates that the pin frame is moved to one second backwards relative to the cloth pressing foot pin shin
Sewing position；
Figure 12 be one be similar to Figure 11 view, illustrate the pin frame relative to the cloth pressing foot pin shin move back to forward this first
Sewing position；
Figure 13 is the schematic cross-sectional view intercepted along the line Ⅹ III-Ⅹ III in Figure 10；
Figure 14 is along the Ⅹ IV-Ⅹ IV of Figure 11 center lines schematic cross-sectional views intercepted；
Figure 15 is the schematic cross-sectional view intercepted along the line Ⅹ V-Ⅹ V in Figure 12；
Figure 16 is that using the embodiment, the sewing on a cloth goes out the sewing operation schematic diagram that a buttonhole stitches to the sewing machine.
In Fig. 1~Figure 16：10th, cloth pressing foot unit, 20, sensing unit, 21, sensing module, 211, pedestal, 212, light reflection
Formula switchs, and 213, RCA, 214, accommodation space, 215, bottom opening, 216, light emission part, 217, light receiver, 22, first touches
Outbox, the 23, second trigger member, 231, front block unit, 232, backstop, 233, connecting portion, 234, reflection trigger unit, 235, positioning tooth
Groove, 30, pin frame, 31, frame leading section, 311, button contact surface, 312, limited block, 32, back end of frame portion, 33, frame center section part, 331,
Through slot, 332, guide groove, 34, side plate, 40, button guide plate, 41, front edge of board portion, 411, button contact surface, 42, after plate
End, 421, slider guide, 43, plate center section part, 431, positioning teeth groove, 44, side portions, 45, roof, 451, through groove, 46, outstanding
Arm, 461, positioning wedged block, 47, guide side walls, 50, sliding part, 51, pedestal, 511, sewing opening, 512, guide sliding part, 52, installation
Wall, 53, connecting rod, 60, flexible member, 61, free end, D, spacing, L1, preset space, L2, operation distance, 200, sewing machine,
210th, fuselage, 220, head, 230, needle plate, 240, cloth conveying teeth, 250, sewing needle, 260, compress bar, 270, cloth pressing foot pin shin,
280th, central control unit, 290, work feed driver element, 291, pin driver element, 300, cloth, 310, buttonhole seam, 320, long
Side, 330, short side, 340, long side, 350, short side, 400, button.
Embodiment
It is that the buttonhole of sewing machine of the present invention stitches an embodiment of sewing guiding device, in the present embodiment refering to Fig. 1,2,3
In, the head 220, one that there is the sewing machine 200 fuselage 210, one to be connected with the fuselage is arranged at the needle plate of the fuselage 210
230th, a cloth conveying teeth 240, one that is arranged at the fuselage 210 and can be operated is arranged at the head 220 and the sewing that can be operated
The compress bar 260, one that pin 250, one is arranged at the head 220 is arranged at the cloth pressing foot pin shin 270, one of the bottom of compress bar 260
Central control unit 280, one electrically connects with the central control unit 280 and for driving the work feed of the cloth conveying teeth 240 to drive list
Member 290, and one electrically connect with the central control unit 280 and be used for driving the pin driver element 291 of the sewing needle 250, preferably
Ground, the work feed driver element 290 can use stepper motor with the pin driver element 291, and the cloth conveying teeth 240 can drive a cloth
300 (see Figure 16) move along a fore-and-aft direction, and the sewing needle 250 can move along an above-below direction, and along the front and back
To or a left and right directions to the cloth 300 carry out sewing operation, it is to be noted that, it is so-called in the present embodiment it is forward and backward, left,
Right, upper and lower to, be with user in Fig. 1 using the direction of the sewing machine 200 for.
As shown in Figure 4,5, 6, buttonhole seam sewing guiding device includes a cloth pressing foot unit 10, and a sensing unit 20.
The cloth pressing foot unit 10 includes the button that a pin frame 30, one is adjustably arranged at the pin frame 30 along the fore-and-aft direction
Guide plate 40, one is movably arranged at the sliding part 50 of the pin frame 30 along the fore-and-aft direction, and one be arranged at the pin frame 30 with
Flexible member 60 between the sliding part 50.
The pin frame 30 has a frame leading section 31, a back end of frame portion 32, a frame center section part 33, and one prolongs along the fore-and-aft direction
Stretch and be located at the side plate 34 of the side of the frame leading section 31, the back end of frame portion 32 and the frame center section part 33, in the present embodiment,
The frame leading section 31 has a button contact surface 311, and a limited block 312, and the frame center section part 33 is provided with one between the frame front end
The through slot 331 extended between portion 31 and the back end of frame portion 32 and along the fore-and-aft direction, and two is parallel to each other and be located at the insertion
The guide groove 332 of the both sides of groove 331.
After the button guide plate 40 has a front edge of board portion 41, a plate rearward end 42, a plate center section part 43, and one and the plate
End 42 connects and extended outwardly along the left and right directions to the side portions 44 of the top of the side plate 34, in the present embodiment, the plate
Leading section 41 has a button contact surface 411 towards the button contact surface 311, the plate rearward end 42 have two respectively with it is such
The sliding slider guide 421 of guide groove 332, the plate center section part 43 are positioned apart from determining in side with several along the fore-and-aft direction
Position teeth groove 431, as shown in Fig. 6,7,8, the side portions 44 have one to be connected with the plate rearward end 42 and formed with consistent wears groove 451
Roof 45, one be connected with the roof 45 and extend the cantilever 46 in the groove 451 along the fore-and-aft direction, and two are arranged at
The bottom surface of the roof 45 and on the left and right directions apart from one another by guide side walls 47, the roof 45 is higher than on the above-below direction
The pin frame 30, the cantilever 46 have one to be located at front end and the positioning wedged block 461 protruded down.When the button guide plate 40 relative to
After the pin frame 30 adjusts upward position in the front and back, one of positioning teeth groove 431 can be spacing with the frame leading section 31
The mutual inlay card (see Fig. 5) of block 312, and produce the effect of positioning.
As shown in Fig. 6,9, the button guide plate 40 uses position relative to the pin frame 30 in a ready position (see Fig. 6) and one
Put and move between (see Fig. 9), when the button guide plate 40 is in the ready position, the front edge of board portion 41 is adjacent to the frame leading section
31, when the button guide plate 40 uses position at this, the front edge of board portion 41 is away from the frame leading section 31, and user can be by one
Button 400 is folded between the button contact surface 411 and the button contact surface 311, makes the front edge of board portion 41 and the frame leading section
31 intervals one correspond to the space D of the diameter of the button 400.
As shown in Figure 4,5, 6, in the present embodiment, the sliding part 50 has is arranged at the pin frame 30 and formed with one one by one
It is connected with the pedestal 51 with the pedestal 51, one of the sewing opening 511 of the through slot 331 connection and is extended outwardly along the left and right directions
Assembly wall 52, an and connecting rod 53 (boundary's industry is commonly referred to as pearl pin) for being arranged at the pedestal 51 along the left and right directions, the pedestal 51
With two guide sliding parts 512 slipped respectively with such guide groove 332, the sewing opening 511 and the through slot 331 are used for allowing the seam
Swage 250 passes through (see Fig. 2), and the assembly wall 52 is higher than the pin frame 30 (see Fig. 7) on the above-below direction, and the connecting rod 53 is used for
Removably it is embedded in the hook construction of cloth pressing foot pin shin 270 (see Fig. 2) bottom.
As shown in Figure 10,11, the sliding part 50 is removably installed on the cloth pressing foot pin shin 270 so that the pin frame 30 can
Moved relative to the sliding part 50 between one first sewing position (see Figure 10) and one second sewing position (see Figure 11), when this
For pin frame 30 at the first sewing position, the sliding part 50 is adjacent to the back end of frame portion 32, and is away from the button guide plate 40,
When the pin frame 30 is in the second sewing position, the sliding part 50 is away from the back end of frame portion 32, and is adjacent to button guiding
Plate 40.
As shown in Figure 5,6, the flexible member 60 is arranged at the back end of frame portion 32 of the pin frame 30 and the pedestal of the sliding part 50
Between 51, the flexible member 60 have make the potential energy that the sliding part 50 moves towards the back end of frame portion 32, in the present embodiment, the bullet
Property element 60 be mounted to scroll spring inside the back end of frame portion 32, and with a free end 61 for being connected to the pedestal 51.
As shown in Figure 4,5, 6, the sensing unit 20 is arranged at including a sensing module 21, one for being arranged at the sliding part 50
First trigger member 22 of the pin frame 30, and second trigger member 23 for being arranged at the button guide plate 40.In the present embodiment, should
It is a kind of photoelectric sensor (photo interrupter) to sense module 21
As shown in Fig. 5,6,7, in the present embodiment, the sensing module 21 has an assembly wall for being arranged at the sliding part 50
52 pedestal 211, one is arranged at the light reflective switch 212 of the pedestal 211, and one sets the pedestal 211 and is electrically connected to this
RCA 213 between light reflective switch 212 and the central control unit 280 (see Fig. 3).The pedestal 211 has one to be formed
There is the accommodation space 214 of a bottom opening 215, the light reflective switch 212 is arranged at the accommodation space 214, and has a direction
The bottom opening 215 and for launching the light emission part 216 of light, and one towards the bottom opening 215 and for receiving the light of light
Acceptance division 217, the emission part 216 and the light receiver 217 belong to the first half of the light reflective switch 212 with latter half of,
It is to illustrate to separate the light emission part 216 and the light receiver 217 with an imaginary line in figure 6.The light reflective switch 212 passes through
Communicated, but be not limited (see Fig. 3) with the central control unit 280 by the RCA 213, it is to be understood that should
The technology of the wireless telecommunications such as RF radio frequencies or bluetooth can also be passed through by sensing module 21, and wirelessly with controlling list with the center
Member 280 is communicated (see Fig. 3).
In the present embodiment, first trigger member 22 is arranged at the top surface of the side plate 34 of the pin frame 30 and is adjacent to the side
The rear end of plate portion 34, first trigger member 22 are a kind of reflecting layer for reflection light, it is preferred that first trigger member 22
Color (such as black) is different from the color of the side plate 34 of the pin frame 30.
In the present embodiment, second trigger member 23 is adjustably arranged at the button guide plate 40 along the fore-and-aft direction
Side portions 44, and have one in the front and back with the top surface sliding contact of the side plate 34 of the pin frame 30, second trigger member 23
Upwards be located at the roof 45 before front block unit 231, one on the fore-and-aft direction be located at the roof 45 after backstop 232,
One is connected to the company between the forward and backward stopper 231,232 and between such guide side walls 47 (see Fig. 8) along the fore-and-aft direction
Socket part 233, and one extend and on the fore-and-aft direction between first trigger member backwards from the backstop 232 along the fore-and-aft direction
There is number to be positioned apart from along the fore-and-aft direction in top for reflection trigger unit 234 between 22 and the side portions 44, the connecting portion 233
The positioning teeth groove 235 in face, after second trigger member 23 adjusts upward position relative to the side portions 44 in the front and back, its
In positioning teeth groove 235 and the cantilever 46 461 mutual inlay card of positioning wedged block, and produce the effect of positioning, it is preferred that this second
The color (such as black) of the reflection trigger unit 234 of trigger member 23 is different from the color of the side plate 34 of the pin frame 30, Ke Yili
Solution, second trigger member 23 can also be integrally same color (such as black), be easy to ejection formation to make.
As shown in fig. 6, in the present embodiment, when the button guide plate 40 the ready position and the pin frame 30 this first
During sewing position, the rear end of the reflection trigger unit 234 of second trigger member 23 is with the light reflective switch 212 in the fore-and-aft direction
One preset space L1 of upper interval, it is to be understood that when second trigger member 23 relative to side portions 44 on the fore-and-aft direction
Adjust to the front block unit 231 be connected to the front end of the roof 45 when, preset space L1 is minimum (such as 2mm), when this second
Trigger member 23 adjusted upward relative to side portions 44 in the front and back to the backstop 232 be connected to the rear end of the roof 45 when,
Preset space L1 is maximum (such as 4mm), and in the drawings, preset space L1 is to make to represent explanation with 2mm；As shown in figure 9,
When the button guide plate 40 this using position and the pin frame 30 in the first sewing position when, the reflection of second trigger member 23
The rear end of trigger unit 234 is spaced an operation distance L2, operation distance L2 with the light reflective switch 212 on the fore-and-aft direction
The space D is added equal to preset space L1 (see Fig. 6), the length after the completion of buttonhole seam sewing is can control using operation distance L2
Spend size.
As shown in Figure 10,13, in the present embodiment, when the pin frame 30 is in the first sewing position, first trigger member
The light that the light emission part 216 of the light reflective switch 212 is projected can be reflected back the acceptance division 217 by 22, should with triggering
Light reflective switch 212, the light reflective switch 212 transmission signal is set to go control should (see Fig. 3) to the central control unit 280
The operation of sewing needle 250；As shown in Figure 11,14, when the pin frame 30 is in the second sewing position, second trigger member 23 it is anti-
Penetrate trigger unit 234 and the light that the light emission part 216 of the light reflective switch 212 is projected is reflected back the acceptance division 217, with
The light reflective switch 212 is triggered, makes the light reflective switch 212 transmission signal go control should to the central control unit 280
The operation of sewing needle 250.It is noted that because the color of the side plate 34 of the pin frame 30 is to be different from first trigger member 22
With the reflection trigger unit 234 of second trigger member 23, therefore, when the light reflective switch 212 is located at the side plate 34 not by this
During the top in the region that the first trigger member 22 is covered, because the difference of light volume reflection, i.e., it will not trigger that the light is reflective to be opened
Close 212 transmission signals and give the central control unit 280 (see Fig. 3).
Thereby,, can should when user is intended to go out buttonhole seam 310 in the sewing of the cloth 300 as shown in Figure 10,13,16
Cloth pressing foot unit 10 is installed on the cloth pressing foot pin shin 270 of the sewing machine 200, and now, first trigger member 22 can trigger the sense
The light reflex switch 212 for surveying module 21 transmits signal and gives the central control unit 280 (see Fig. 3), allows the central control unit 280
Learn that the pin frame 30 is located at the first sewing position (see Fig. 3), preparation proceeds by sewing operation；Then, such as Figure 11,14,16
Shown, when the pedal (not shown) that user tramples the sewing machine 200 starts the sewing machine 200, center control is single
280 (see Fig. 3) of member can drive the cloth conveying teeth 240 (see Fig. 2) to start to convey the cloth 300 along the fore-and-aft direction, make the cloth
300 are moved to the second sewing position backwards together with the pin frame 30, and in the process, the central control unit 280 is (see figure
3) it can first drive the sewing of sewing needle 250 to go out a long side 320 of buttonhole seam 310, and be touched in the reflection of second trigger member 23
After the light reflex switch 212 of the triggering of the hair portion 234 sensing module 21 transmits signal to the central control unit 280 (see Fig. 3),
The central control unit 280 (see Fig. 3) drives the sewing of sewing needle 250 to go out the short side 330 that the buttonhole stitches 310 again；Then, such as
Shown in Figure 12,15,16, the central control unit 280 (see Fig. 3) the meeting reverse drive cloth conveying teeth 240 (see Fig. 2), make the cloth
300 are moved to and return to the first sewing position, in the process, the central control unit 280 forward together with the pin frame 30
(see Fig. 3) can first drive the sewing of sewing needle 250 to go out the long side 340 that the buttonhole stitches 310, and in first trigger member 22 once again
Trigger the sensing module 21 light reflex switch 212 transmit signal give the central control unit 280 after, the central control unit
280 (see Fig. 3) drive the sewing of sewing needle 250 to go out a short side 350 of buttonhole seam 310 again, and complete the seam of buttonhole seam 310
Thread operation, it is to be understood that the length of the long side 320,340 of buttonhole seam 310 can substantially correspond to operation distance L2
(see Fig. 9), and the diameter compared with the button 400 has more preset space L1 (see Fig. 6) length, in order to which user is in the buttonhole
After cutting open buttonhole in seam 310, the button 400 can be smoothly through buttonhole.In addition, it is noted that buttonhole seam kenel with
The order of sewing actually has the change of many kinds, in the present embodiment, is simply illustrated with buttonhole seam 310 to make to represent,
It is not limited thereto.
Advantages of the present invention, can be summarized as follows by the explanation more than again：
First, the present invention is that the sensing unit 20 is arranged on the cloth pressing foot unit 10, and compared to known technology, collocation is originally
Invention carries out the sewing machine 200 of buttonhole seam operation completely without buttonhole switching on and shutting down known to the setting on the head 220
Structure, can be effectively reduced assembling man-hour and the cost of the sewing machine 200, and increases other mechanisms and set in the available of the head 220
Space is counted, moreover, the RCA 213 of the sensing unit 20 of the present invention can directly share the sewing machine 200 and be originally intended to what is freely stitched
Socket.
2nd, after the button 400 is folded between the front edge of board portion 41 and the frame leading section 31 by user, this second touch
The rear end of the reflection trigger unit 234 of outbox 23 goes out size with the light reflective switch 212 meeting automatic spacing and corresponds to the button
The operation distance L2 of the diameter of button 400, the sewing machine 200 directly can go to control the buttonhole to stitch using operation distance L2
The length dimension of 310 long side 320,340, compared to known technology, the button 400 need to be only installed on by user of the invention
On the cloth pressing foot unit 10, the sewing machine 200 can immediately begin to carry out the operation of buttonhole seam, and user need not go actual measurement
The diameter of the button 400 simultaneously inputs numerical value, using upper quite convenient and directly perceived.
In summary, the buttonhole seam sewing guiding device of sewing machine of the invention, can not only be greatly reduced the sewing machine 200
Assembling man-hour and cost, and other mechanisms can be increased in the available design space of the head 220, be tired of moreover, being not required to labor completely
User goes to measure the diameter of the button 400, so can reach the purpose of the present invention really.
The principle and its effect of above-described embodiment only illustrative the invention, and the embodiment that part uses,
Not for the limitation present invention；It should be pointed out that for the person of ordinary skill of the art, the invention structure is not being departed from
On the premise of think of, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (10)
1. a kind of buttonhole seam sewing guiding device of sewing machine, the sewing machine have a sewing needle that can be operated, a cloth pressing foot
Pin shin, and a central control unit, buttonhole seam sewing guiding device include：One cloth pressing foot unit, including a pin frame, one along one
Fore-and-aft direction is adjustably arranged at the button guide plate of the pin frame, and one is movably arranged at the pin frame along the fore-and-aft direction
Sliding part, the pin frame has a frame leading section, and a back end of frame portion, and the button guide plate has a front edge of board portion, and a plate
Rearward end, the button guide plate move relative to the pin frame in a ready position and one using between position, when the button guides
For plate in the ready position, the front edge of board portion is adjacent to the frame leading section, when the button guide plate uses position at this, the plate
Leading section is away from the frame leading section, and the spacing with the frame leading section interval one corresponding to the diameter of a button, the sliding part
Removably it is installed on the cloth pressing foot pin shin so that the pin frame can be relative to the sliding part in one first sewing position and one second
Sewing moves between position, and when the pin frame is in the first sewing position, the sliding part is adjacent to the back end of frame portion, and is away from
The button guide plate, when the pin frame is in the second sewing position, the sliding part is away from the back end of frame portion, and is adjacent to the button
Detain guide plate；And a sensing unit, including one be arranged at the sensing module of the sliding part, one be arranged at the first triggering of the pin frame
Part, and second trigger member for being arranged at the button guide plate, the sensing module and the central control unit wirelessly with
The one way in which of wired mode is communicated, and when the pin frame is in the first sewing position, first trigger member triggering should
Module is sensed, makes sensing module transmission signal go to control the operation of the sewing needle to the central control unit, when the pin frame exists
During the second sewing position, second trigger member triggers the sensing module, sensing module transmission signal is controlled to the center
Unit goes to control the operation of the sewing needle.
2. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 1, wherein, the sensing module is a kind of photoelectric transfer
Sensor.
3. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 2, wherein, the sensing module has one to be arranged at
The pedestal of the sliding part, and a light reflective switch for being arranged at the pedestal, when the pin frame is in the first sewing position, this
One trigger member triggers the light reflective switch, the light reflective switch is transmitted signal to the central control unit, when the pin frame
At the second sewing position, second trigger member triggers the light reflective switch, make the light reflective switch transmission signal to
The central control unit.
4. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 3, wherein, the pin frame is front and rear along this with more one
Direction extends and positioned at the frame leading section and the side plate of the side in the back end of frame portion, the button guide plate is with more one and the plate
Rearward end is connected and extended outwardly the side portions to above the side plate along a left and right directions, and first trigger member is arranged at the side
The top surface of plate portion and the rear end for being adjacent to the side plate, first trigger member are a kind of reflecting layer, and second trigger member is along before this
Rear is to being adjustably arranged at the side portions and have with the top surface sliding contact of the side plate, second trigger member one at this
Reflection trigger unit on fore-and-aft direction between first trigger member and the side portions, when the pin frame is in the first sewing position
When, the light that the light reflective switch is projected is reflected back the light reflective switch by first trigger member, to trigger the light
Reflective switch, when the pin frame is in the second sewing position, the reflection trigger unit of second trigger member is opened the light is reflective
Close projected light and be reflected back the light reflective switch, to trigger the light reflective switch.
5. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 4, wherein, the sliding part has one to be arranged at this
The pedestal of pin frame, and an assembly wall for being connected with the pedestal and being extended outwardly along the left and right directions, the assembly wall is in a upper and lower
It is higher than the pin frame upwards, the pedestal of the sensing module is arranged at the assembly wall, and the pedestal of the sensing module has one formed with one
The accommodation space of bottom opening, the light reflective switch are arranged at the accommodation space, and have a light transmitting towards the bottom opening
Portion, and one towards the bottom opening light receiver.
6. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 5, the cloth pressing foot unit further include one and are arranged at
Flexible member between the back end of frame portion of the pin frame and the pedestal of the sliding part, the flexible member have make the sliding part towards the frame
The potential energy of rearward end movement.
7. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 5, wherein, the pin frame is formed with one between the frame
The through slot extended between leading section and the back end of frame portion and along the fore-and-aft direction, the sliding part are arranged at the pedestal with more one
Connecting rod, the pedestal of the sliding part is formed with a sewing opening connected with the through slot, the sewing opening and the through slot
For allowing the sewing needle to pass through.
8. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 4, wherein, the side portions tool of the button guide plate
There is one to be connected with the plate rearward end and the roof formed with consistent wears groove, one be connected with the roof and extended along the fore-and-aft direction
The cantilever in the groove, and two be arranged at the bottom surface of the roof and on the left and right directions apart from one another by guide side walls, should
Roof is higher than the pin frame on an above-below direction, and the cantilever has one to be located at front end and the positioning wedged block protruded down, and this second
Trigger member be located at the roof on the fore-and-aft direction with more one before front block unit, one be located at the roof on the fore-and-aft direction
Backstop afterwards, and one be connected to company between the forward and backward stopper and between such guide side walls along the fore-and-aft direction
Socket part, the reflection trigger unit extend backwards from the backstop along the fore-and-aft direction, and the connecting portion has several along the fore-and-aft direction
The positioning teeth groove in top surface is positioned apart from, wherein the mutual inlay card of positioning wedged block of a positioning teeth groove and the cantilever.
9. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 4, wherein, when the button guide plate is in the preparation
The position and pin frame is at the first sewing position, the rear end of the reflection trigger unit of second trigger member and the light reflective switch
A preset space is spaced on the fore-and-aft direction, when the button guide plate this using position and the pin frame in the first sewing position
When putting, the rear end of the reflection trigger unit of second trigger member and the light reflective switch be spaced on the fore-and-aft direction operation away from
From operation distance adds the spacing equal to the preset space.
10. the buttonhole seam sewing guiding device of sewing machine as claimed in claim 4, wherein, the sensing module is set with more one
The RCA put the pedestal and be electrically connected between the light reflective switch and the central control unit, light reflective switch warp
Communicated by the RCA and the central control unit, the color of first trigger member is different from the face of the side plate of the pin frame
Color, the color of the reflection trigger unit of second trigger member are different from the color of the side plate of the pin frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992066.7A CN107630296B (en) | 2017-10-23 | 2017-10-23 | The buttonhole of sewing machine stitches sewing guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992066.7A CN107630296B (en) | 2017-10-23 | 2017-10-23 | The buttonhole of sewing machine stitches sewing guiding device |
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| Publication Number | Publication Date |
|---|---|
| CN107630296A true CN107630296A (en) | 2018-01-26 |
| CN107630296B CN107630296B (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710992066.7A Active CN107630296B (en) | 2017-10-23 | 2017-10-23 | The buttonhole of sewing machine stitches sewing guiding device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4216732A (en) * | 1979-07-23 | 1980-08-12 | The Singer Company | Optical switching design for one step buttonholing |
| JP2649809B2 (en) * | 1987-10-23 | 1997-09-03 | 蛇の目ミシン工業株式会社 | Buttonhole sewing device in computer sewing machine |
| JP2000102681A (en) * | 1998-09-30 | 2000-04-11 | Brother Ind Ltd | Buttonhole sewing-press device |
| CN2552966Y (en) * | 2002-04-23 | 2003-05-28 | 柳兵 | Sewing buttonhole contactless single-transmitting device |
| CN104514100A (en) * | 2013-09-30 | 2015-04-15 | 蛇目缝衣机工业株式会社 | Buttonhole presser device and method of stitching buttonhole by using the same |
-
2017
- 2017-10-23 CN CN201710992066.7A patent/CN107630296B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4216732A (en) * | 1979-07-23 | 1980-08-12 | The Singer Company | Optical switching design for one step buttonholing |
| JP2649809B2 (en) * | 1987-10-23 | 1997-09-03 | 蛇の目ミシン工業株式会社 | Buttonhole sewing device in computer sewing machine |
| JP2000102681A (en) * | 1998-09-30 | 2000-04-11 | Brother Ind Ltd | Buttonhole sewing-press device |
| CN2552966Y (en) * | 2002-04-23 | 2003-05-28 | 柳兵 | Sewing buttonhole contactless single-transmitting device |
| CN104514100A (en) * | 2013-09-30 | 2015-04-15 | 蛇目缝衣机工业株式会社 | Buttonhole presser device and method of stitching buttonhole by using the same |
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| Publication number | Publication date |
|---|---|
| CN107630296B (en) | 2019-12-03 |
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