CN101760904B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN101760904B CN101760904B CN 200910265951 CN200910265951A CN101760904B CN 101760904 B CN101760904 B CN 101760904B CN 200910265951 CN200910265951 CN 200910265951 CN 200910265951 A CN200910265951 A CN 200910265951A CN 101760904 B CN101760904 B CN 101760904B
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Abstract
The invention relates to a sewing machine with intermittent presser foot for pressing the machining cloth from above. When the wire winding process is started, a control device reads initial values stored in the RAM. The control device raises the intermittent presser foot. The intermittent presser foot raises to a position represented by the initial value (a position that the intermittent presser foot does not contacted to the needle board during descending when the intermittent presser foot performs reciprocation, when rotation is performed along with the main shaft for wire winding). Subsequently, the control device starts up the sewing machine motor, to perform the wire winding process carried out by the winding mechanism. The control device waits for the opening operation of the startup pedal. When the opening operation of the startup pedal occurs, the control device stops the drive to the sewing machine motor. The control device descends the intermittent presser foot. The intermittent presser foot descends to a prescribed position (for example, a position wherein the intermittent presser foot is contacted to the needle board during descending).
Description
Technical field
The present invention relates to a kind of Sewing machines with intermittent presser foot of the processing cloth on the needle plate being pressed from the top.
Background technology
The Sewing machines that Japanese Laid-Open Patent Publication is put down in writing for 2008 No. 43360 comprises intermittent presser foot.Intermittent presser foot synchronously rises and descends with shank according to the driving of main shaft.Processing cloth can leave needle plate because floating with the friction of the eedle that rises.Between the rising stage, the intermittent presser foot of decline is pressed the processing cloth on the eedle presser from the top, prevent floating of this processing cloth at eedle.
Sewing machines comprises change mechanism.The position (moving range) of change mechanism change intermittent presser foot.The operator sets the moving range of intermittent presser foot according to the processing cloth thickness of making.In making, intermittent presser foot rises and descends between the upper limit position of the moving range that the operator sets and lower position.The operator is set as the position that contacts with the needle plate upper surface with the lower position of intermittent presser foot sometimes.In these cases, processing cloth and intermittent presser foot clamping are from the upper thread of eedle extension.Therefore, the sewing function prevents that upper thread comes off from eedle when making beginning.
The Sewing machines that Japanese Unexamined Patent Publication No. Hei becomes 7 years (nineteen ninety-five) to put down in writing for No. 275549 comprises the shuttle winding mechanism.The shuttle winding mechanism has the roll that rotates by the driving of main shaft.The shuttle winding mechanism is used for bottom line is wound in shuttle, and this shuttle is contained in the shuttle.The operator is installed on shuttle on the roll, the coiling key of push panel.Step on the startup pedal, main shaft just begins rotation.Shuttle is transferred the coiling bottom line at the driving backspin of main shaft.Main shaft is rotated when using the shuttle winding mechanism.Therefore, intermittent presser foot also rises and descends when using the shuttle winding mechanism.When the lower position with intermittent presser foot was set as the position that contacts with the upper surface of needle plate, the intermittent presser foot that exist to descend can repeatedly collide the upper surface of needle plate and produce the problem of noise.
Summary of the invention
The object of the present invention is to provide a kind of Sewing machines, in this Sewing machines, the moving range with intermittent presser foot be set as the position that contacts with the upper surface of needle plate and implement make the end of job after, even use the shuttle winding mechanism, intermittent presser foot can not collide with needle plate yet.
The Sewing machines of technical scheme 1 is by the reel indication of bottom line of operating portion.When described indication was arranged, control device just drove change mechanism, and the moving range lower position of intermittent presser foot is changed to the position that does not contact with described needle plate.Then, the rotation of control device driving main shaft is carried out coiling and is processed.Along with the rotation of main shaft, intermittent presser foot rises and descends.Even intermittent presser foot rises and descends, also be positioned at the position that does not contact with needle plate, can not collide with needle plate during decline.
The Sewing machines of technical scheme 2 comprises hang up section, this hang up section is used for sending ending to indicate makes described bottom line end to be wound in described shuttle, when the termination indication of described hang up section is arranged, described control device makes the driving of described main shaft stop the described change of rear drive mechanism, and the lower position of described moving range is changed to the position that sets in advance.
The Sewing machines of technical scheme 3 comprises input part, and this input part is used for input and sets the information that described moving range is used.
In the Sewing machines of technical scheme 4, setting the information that described moving range uses is the information that represents described lower position.
Adopt the Sewing machines of technical scheme 1, when the indication of the coiling bottom line that operating portion is arranged, control device drives change mechanism, and the lower position of intermittent presser foot is changed to the position that does not contact with described needle plate.Then, the rotation of control device driving main shaft is carried out coiling and is processed.When processing when winding the line, intermittent presser foot is along with the rotation of machine spindle is risen and descended.Intermittent presser foot can not collide with needle plate when descending.Therefore, when making beginning, even intermittent presser foot is set as the height identical with the upper surface of needle plate, carries out the coiling processing, can not produce noise yet.Control device changes rising and the down position of intermittent presser foot automatically, makes the Sewing machines operation become easy.
Adopt the Sewing machines of technical scheme 2, when the indication of ending the coiling bottom line was arranged, control device stopped the rotary actuation of main shaft.Control device drives change mechanism, and the lower position of described moving range is changed to the position that sets in advance.After processing when winding the line, when carrying out the making of the first pin, intermittent presser foot with process clamping upper thread between the cloth.Therefore, upper thread can not come off in the slave pinprick.
Adopt the Sewing machines of technical scheme 3, the operator can will be used for setting the input information of described moving range by operation inputting part.The operator sets the moving range of intermittent presser foot by operation inputting part.
Adopt the Sewing machines of technical scheme 4, the operator can be by the input information of operation inputting part with the lower position of the described moving range of expression.The operator can be easily and the intermittent presser foot will descend reliably the time be set in the position that does not contact with needle plate.
Description of drawings
Fig. 1 is the stereogram of the Sewing machines of embodiments of the invention.
Fig. 2 is the front view of the Sewing machines when making standby.
Fig. 3 is the stereogram of drive unit.
Fig. 4 is the stereogram of the major part of drive unit.
Fig. 5 is the right side view of drive unit.
Fig. 6 is the front view of swing mechanism.
Fig. 7 is the front view of intermittent presser foot travel mechanism when being positioned at the top position.
Fig. 8 is the front view of intermittent presser foot travel mechanism when being positioned at lower position.
Fig. 9 is the side view of shuttle winding mechanism.
Figure 10 is the block diagram of expression sewing-machine control systems.
Figure 11 is the key diagram of stitch data.
Figure 12 is the flow chart of intermittent presser foot Position Control program.
Figure 13 is the flow chart of the control program of intermittent presser foot decline processing.
Figure 14 is the flow chart of the control program of coiling processing.
Figure 15 is the flow chart of making the control program of processing.
The specific embodiment
The present invention is described in detail below with reference to the accompanying drawing that represents preferred embodiments.
As shown in Figure 1, Sewing machines 1 comprises base 2, pillar 3 and horn 4.Pillar 3 is holded up from base 2 rearward end (among Fig. 1, the upper left side is the rear).Horn 4 forwards extends from pillar 3 upper ends.Main shaft 5 is disposed at horn 4 inside along fore-and-aft direction.5 rotations of sewing machine electromotor 72 (with reference to Figure 10) driving main shaft.
As shown in Figure 1, depression bar 7 is arranged at the leading section of horn 4.Depression bar 7 protrudes from horn 4 belows.As shown in Figure 2, shank 8 is arranged at depression bar 7 next doors.Shank 8 protrudes from horn 4 belows.Depression bar 7 and shank 8 synchronously rise and descend.Eedle 9 releasably is installed on shank 8 bottoms.
As shown in Figure 6, swing mechanism 11 comprises eccentric cam 20, endless member 21, rotating shaft 22 and rod unit 23.Eccentric cam 20 is in the form of annular discs.Eccentric cam 20 therein heart position is installed on the leading section of main shaft 5 with respect to the position of the axle center off-centre of main shaft 5.Endless member 21 has annulus 21b and arm 21a.Annulus 21b is embedded in the outside of eccentric cam 20.Arm 21a is outstanding to left from the periphery of annulus 21b.
Rotating shaft 22 is disposed at front side and high position with respect to endless member 21.Rotating shaft 22 is parallel with main shaft 5.Rotating shaft 22 rotatably is supported on the frame F (with reference to Fig. 1).Rod unit 23 extends along the vertical direction in the end of arm 21a.The rearward end of rotating shaft 22 is fixed in the upper end of rod unit 23.The first bar 24 extends along the vertical direction.The leading section of rotating shaft 22 is fixed in the upper end of the first bar 24.The bottom of the first bar 24 is connected with first connecting rod 30 described later.
As shown in Figure 6, rod unit 23 partly has circular hole 23a in the central.Circular hole 23a is the circular shape of the radius R centered by the axle center of main shaft 5.Moving pin 25 is fixed in arm 21a left part.Moving pin 25 is forwards outstanding.Moving pin 25 leading sections can be connected with circular hole 23a, and 23a moves along circular hole.Main shaft 5 is seen to clockwise rotation from the place ahead according to the driving of sewing machine electromotor 72.Eccentric cam 20 is rotated according to the driving of main shaft 5.According to the rotation of eccentric cam 20, endless member 21 moves back and forth along left and right directions with the distance identical with the distance of eccentric cam 20 off-centre.
According to moving back and forth of endless member 21, rod unit 23 swings (with reference to the arrow mark of Fig. 6) centered by rotating shaft 22.The swing of rod unit 23 is delivered to the first bar 24 that is connected with rotating shaft 22, thereby the first bar 24 swings (with reference to Fig. 7).Can be by moving pin 25 being moved the pendulum angle of adjusting rod parts 23 and the first bar 24 along circular hole 23a.Be connected with depression bar 7 by travel mechanism's 12, the first bars 24.Such as Fig. 3, Fig. 4 and shown in Figure 7, travel mechanism 12 comprises first connecting rod 30, second connecting rod 31 and third connecting rod 32.First connecting rod 30 disposes along left and right directions.First connecting rod 30 left parts are connected with the first bar 24 bottoms.
Second connecting rod 31 is the L word shape.Second connecting rod 31 has the 31a of vertical connecting rod section that extends along the vertical direction and the 31b of tranverse connecting rod section that extends along left and right directions.Vertical connecting rod section 31a upper end is connected with first connecting rod 30 right parts.Vertical connecting rod section 31a upper end and first connecting rod 30 right parts can rotate.Tranverse connecting rod section 31b right part and vertical connecting rod section 31a bottom are connected as a body.Tranverse connecting rod section 31b left part connects with connecting rod 33 upper ends that are connected of extending along the vertical direction.Depression bar folder 34 is fixed on the depression bar 7 that extends along the vertical direction, and with is connected the connection of connecting rod 33 bottoms.
Third connecting rod 32 extends along left and right directions.Third connecting rod 32 disposes overlappingly with tranverse connecting rod section 31b front portion.Third connecting rod 32 right parts and the 31a of vertical connecting rod section are connected continuous part and are connected with the 31b of tranverse connecting rod section.Third connecting rod 32 has the back shaft 32a that extends along fore-and-aft direction in its left part.Back shaft 32a is supported in the support portion (not shown) that is arranged on the frame F.
As shown in Figure 5, third connecting rod 32 has the 32b of spring base section.The 32b of spring base section is disposed at second connecting rod 31 rear sides, and is disposed at around the depression bar 7.Compression helical spring 35 is arranged at around the depression bar 7, and is positioned at the upside of the 32b of spring base section.Compression helical spring 35 is all the time downwards to the 32b of the spring base section application of force.P1 is the tie point of the first bar 24 and first connecting rod 30, and P2 is the tie point of first connecting rod 30 and second connecting rod 31, and P3 is the tie point of second connecting rod 31 and third connecting rod 32, and P4 is the tie point of third connecting rod 32 and frame F.Limit P1-P2 is parallel to limit P4-P3, and limit P2-P3 is parallel to limit P1-P4 (with reference to Fig. 7 and Fig. 8).When shank 8 was positioned at the position (making stop position) that slightly descends from the extreme higher position, limit P1-P2 became and is roughly parallel to limit P4-P3, and limit P2-P3 becomes and is approximately perpendicular to limit P1-P4.
The drive division housing 40 of as shown in Figure 1, accommodating drive system is arranged in the pillar 3.Camshaft 41 (with reference to Fig. 3) and back shaft 44 (with reference to Fig. 3) are contained in the drive division housing 40.Camshaft 41 and back shaft 44 are parallel to each other, extend along left and right directions respectively.Back shaft 44 is disposed at the top of camshaft 41.
The below describes change mechanism 13.Change mechanism 13 comprises cam body 42, pulse motor 43, swing arm 45 and support bar 48.Cam body 42 is discoideus.The core of cam body 42 is fixed on the camshaft 41.Pulse motor 43 (with reference to Fig. 1) is installed on the outside of drive division housing 40.Pulse motor 43 can be according to number of drive pulses, accurately change of location.Pulse motor 43 comes drive cam shaft 41 by gear mechanism (not shown).Therefore, cam body 42 rotates according to the driving of pulse motor 43.
As shown in Figure 1, connecting rod 47 forwards extends in horn 4 inside.Connecting rod 47 leading sections are connected with support bar 48 rearward end of extending along fore-and-aft direction.The bottom of support bar 48 rearward end rotatably is supported on the frame F.As shown in Figure 5, support bar 48 leading section 48a are connected with the 32b of spring base section of third connecting rod 32 from downside.
When pulse motor 43 sees that from Sewing machines 1 left side when driving to clockwise direction, camshaft 41 and cam body 42 rotate.The cam surface of cam body 42 (side face) is according to the rotation of cam body 42, and driven pulley 46 is pushed away on upward.Swing arm 45 rearward swings centered by back shaft 44 according to pushing away on the driven pulley 46.Connecting rod 47 is according to the swing of swing arm 45, and is rearward mobile.Support bar 48 leading section 48a swing upward according to the movement of connecting rod 47.Therefore, the support bar 48 leading section 48a elastic force that overcomes compression helical spring 35 is lifted third connecting rod 32 upward.When seeing from the place ahead, the attitude of travel mechanism 12 becomes the attitude (with reference to Fig. 7) that the right side rises from the attitude (with reference to Fig. 8) that its right side descends.When being attitude shown in Figure 7, the position of tie point P3 and intermittent presser foot 6 is higher than position shown in Figure 8.
According to the rotation of main shaft 5, intermittent presser foot 6 (moving range) between upper limit position and lower position rises and descends.In Fig. 7, upper limit position represents that with solid line the lower position represents with double dot dash line.The described mechanism 13 that changes can be under the state that keeps the distance between upper limit position and the lower position, the moving range of change intermittent presser foot 6.
When camshaft 41 and cam body 42 swung round about according to the driving of pulse motor 43, connecting rod 47 was forwards mobile.Support bar 48 swings downwards centered by the bottom of support bar 48 rearward end according to the movement of connecting rod 47.The leading section 48a of support bar 48 descends.Third connecting rod 32 descends according to the elastic force of compression helical spring 35.Tie point P3 and intermittent presser foot 6 descend.Travel mechanism 12 becomes the attitude (with reference to Fig. 8) that its right side descends.Therefore, change mechanism 13 can be set as the lower position of intermittent presser foot 6 the same high position with needle plate 2a upper surface.
When rising on travel mechanism 12 right sides (with reference to Fig. 7), even intermittent presser foot 6 descends, also not can with needle plate 2a butt.Can be by the shift position of regulating impulse motor 43, the lower position of intermittent presser foot 6 is set as desired position.The operator as boundary, can set the lower position of intermittent presser foot 6 with needle plate 2a upper surface.In the present embodiment, the operator can be set as the lower position of intermittent presser foot 6 and leave upward 0 to 10mm optional position from needle plate 2a.For example, when being set as from needle plate 2a, the lower position of intermittent presser foot 6 upward during 5mm, even intermittent presser foot 6 descends, can not contact with needle plate 2a yet.
The below describes shuttle winding mechanism 50.As shown in Figure 9, shuttle winding mechanism 50 is arranged at horn 4 tops.Shuttle winding mechanism 50 comprises that roll 53, reel 54, shuttle are by last item 56 and shuttle pressing component 57.Roll 53 extends along the vertical direction.Roll 53 bottoms are disposed at the frame F inside of horn 4.Roll 53 upper ends are outstanding from the frame F of horn 4.Shuttle 52 is disposed at roll 53 upper ends.Bottom line 51 is wound on the shuttle 52.Coiling bearing 55 has roll 53 in frame F inner support.Coiling bearing 55 can move along fore-and-aft direction.Reel 54 is arranged at the bottom of roll 53.Reel 54 side faces cover with rubber grommet 54a.Belt pulley 5a is arranged on the main shaft 5.Belt pulley 5a side is relative with reel 54 side faces.Reel 54 moves along fore-and-aft direction with coiling bearing 55.The reel 54 that moves to the place ahead rotates with belt pulley 5a side butt.
Shuttle is disposed at roll 53 rears by last item 56.Shuttle is pressed last item 56 and is extended along the vertical direction.Shuttle is inner by the frame F that last item 56 bottoms are disposed at horn 4.It is outstanding upward from the frame F of horn 4 that shuttle is pressed last item 56 upper ends.Shuttle pressing component 57 extends along fore-and-aft direction.Shuttle pressing component 57 rearward end are installed on shuttle by last item 56 upper ends with adjustment screw 56a.Adjustment screw 56a is used for regulating shuttle pressing component 57 is pressed last item 56 with respect to shuttle installation site.Shuttle pressing component 57 swings centered by by last item 56 by shuttle.Shuttle pressing component 57 leading sections are disposed at shuttle 52 next doors.The 57a of hole section that extends along fore-and-aft direction is arranged at shuttle pressing component 57 leading sections.When shuttle 52 was disposed on the roll 53, shuttle 52 eaves sections were positioned at the 57a of hole section of shuttle pressing component 57.
By linkage 58, coiling bearing 55 is connected by last item 56 with shuttle.By operation shuttle pressing component 57, coiling bearing 55 moves between the position that the position of reel 54 and belt pulley 5a butt and reel 54 and belt pulley 5a leave.
After the operator is disposed at shuttle 52 on the roll 53, shuttle 52 1 sides are arrived in 57 operations of shuttle pressing component.By the operation of shuttle pressing component 57, coiling bearing 55 moves to the position of reel 54 and belt pulley 5a butt.The operator will start pedal 70 (with reference to Figure 10) and connect under the state of connecting coiling key 67a (with reference to Figure 10).Sewing machine electromotor 72 drives, and main shaft 5 rotates with belt pulley 5a.According to the rotation of belt pulley 5a, roll 53 and shuttle 52 are rotated.Bottom line 51 is wound on the shuttle 52.When disconnecting startup pedal 70, the driving of sewing machine electromotor 72 just stops.According to stopping of sewing machine electromotor 72, the coiling of bottom line 51 just stops.
The below describes the control system structure of Sewing machines 1.As shown in figure 10, control device 60 is the microcomputers that comprise input interface 61, CPU62, ROM63, RAM64 and output interface 65.Input interface 61, CPU62, ROM63, RAM64 and output interface 65 interconnect by data/address bus.ROM63 is pre-stored to be had the control program (with reference to Figure 14) of the control program of the control of making, the control program (with reference to Figure 12) of intermittent presser foot Position Control, the processing that winds the line and makes the control program (with reference to Figure 15) of processing.Make control and comprise the driving control of various driving mechanisms, the pattern selection control of selecting various patterns and various demonstration control.Direction of rotation and the rotary pulsed number of the rotate instruction that RAM64 storage paired pulses motor 43 is exported.CPU62 identifies intermittent presser foot 6 positions according to the described direction of rotation and the rotary pulsed number that are stored in RAM64.
Data, the initial value of expression intermittent presser foot 6 positions and the stitch data (with reference to Figure 11) that is generated by aftermentioned program input device 68 of RAM64 storage indication aftermentioned intermittent presser foot 6 lower positions.RAM64 sets aftermentioned data sequence counting N and counting M.
Stitch data also can be pre-stored in external memories such as ROM63 or storage cards.The CPU62 of control device 60 reads stitch data from external memory, stitch data is stored in RAM64 and uses.
CPU62 is identified for sending the work feed of processing cloth W and begins opportunity according to the detecting sensor (not shown) that detects main shaft 5 angles.Guidance panel 66, program input device 68, presser feet pedal 69 and be connected pedal 70 and be connected with input interface 61 respectively.Guidance panel 66 comprises coiling key 67a and Position input key 67b.The operator is by operation coiling key 67a, input coiling instruction.The operator is by operating position enter key 67b, the information (data and value etc.) of expression intermittent presser foot 6 lower positions and expression coiling processed the inputs such as initial value of intermittent presser foot 6 positions when beginning.
Presser feet pedal 69 is exported climb command or the decline instruction of intermittent presser foot 6 according to operator's the action of stepping on.Start pedal 70 according to operator's the action of stepping on, the driving instruction of output sewing machine electromotor 72.Sewing machine electromotor 72, pulse motor 74, pulse motor 43 and pulse motor 76 by driving loop 71, drive loop 73, drive loop 75 and driving loop 77, are connected with output interface 65 respectively.Pulse motor 74 will keep the holding member (not shown) of processing cloth W to drive to directions X (left and right directions), and pulse motor 76 drives this holding member to Y-direction (fore-and-aft direction).Coiling key 67a is equivalent to operating portion, and Position input key 67b is equivalent to input part, starts pedal 70 and is equivalent to hang up section.
The below describes stitch data.As shown in figure 11, stitch data data sequence and the data content of reading order by expression consists of.Data content comprises needle tracking data, intermittent presser foot data and end data.In the present embodiment, stitch data is made of altogether 13 data from data sequence 0 to 12.The needle tracking data are data of the relative coordinate that is made of directions X and Y-direction of expression.The intermittent presser foot data are to set the data of intermittent presser foot 6 lower positions.End data is that the data that processing finishes are made in expression.
The operator connects Sewing machines 1 power supply, selects stitch data.When Sewing machines 1 power connection, CPU62 driving pulse motor 74 moves to described holding member (not shown) and makes starting position (S1).CPU62 will be set as 0 (S2) for the data sequence counting N that reads successively stitch data.Whether CPU62 monitors presser feet pedal 69, to having the making operation of presser feet pedal 69 to judge (S3).The making operation of presser feet pedal 69 is that the operator is to the action of stepping on of presser feet pedal 69.
When the making operation of presser feet pedal 69 is arranged (S3: be), whether position of readiness is judged (S4) to CPU62 to intermittent presser foot 6 positions.CPU62 is for example with reference to RAM64, with reference to driving direction and the number of drive pulses of the driving instruction of paired pulses motor 43 outputs.Whether CPU62 is positioned at position of readiness to intermittent presser foot 6 and judges according to driving direction and the number of drive pulses of the driving instruction of paired pulses motor 43 outputs.Position of readiness refers to processing cloth W to be disposed at without prejudicely the position of the intermittent presser foot 6 on the needle plate 2a.Position of readiness is the position that is higher than the height when making.
When intermittent presser foot 6 is not positioned at position of readiness (S4: no), CPU62 exports to pulse motor 43 (S5) with the climb command of intermittent presser foot 6.When intermittent presser foot 6 is positioned at position of readiness (S4: be), CPU62 carries out intermittent presser foot decline and processes (S6).
Whether CPU62 is to having the cut-off signal of presser feet pedal 69 to judge (S7).Always standby of CPU62 (S7: no) till the opening operation that presser feet pedal 69 is arranged.When the opening operation of presser feet pedal 69 was arranged, CPU62 turned back to step S3 with processing.
The operation of the opening operation of the presser feet pedal 69 loose pin that is operators from the presser feet pedal 69.Be placed on needle plate 2a when upper when processing cloth W, the operator steps on presser feet pedal 69, lifts intermittent presser foot 6.When intermittent presser foot 6 rises to position of readiness, operator's loose pin from the presser feet pedal 69.The rising of intermittent presser foot 6 just stops.The operator will process cloth W and be placed on the needle plate 2a.The operator steps on presser feet pedal 69, and intermittent presser foot 6 is descended.When intermittent presser foot 6 drops to the desired location corresponding with processing cloth W thickness, operator's loose pin from the presser feet pedal 69.The decline of intermittent presser foot 6 just stops.
When not having the making operation of presser feet pedal 69 (S3: no), whether CPU62 monitors and starts pedal 70, to having the making operation that starts pedal 70 to judge (S8).The making operation that starts pedal 70 is that the operator is to starting the operation of stepping on of pedal 70.When not having the making operation of presser feet pedal 70 (S8: no), CPU62 turns back to step S3 with processing.Whether when the making operation that starts pedal 70 is arranged (S8: be), CPU62 monitors coiling key 67a, to having the making operation of coiling key 67a to judge (S9).When the making operation of coiling key 67a is arranged (S9: be), CPU62 carries out coiling and processes (S10), and processing is turned back to step S3.
When the making operation of the key 67a that do not wind the line (S9: no), CPU62 carries out and makes processing (S11).When making the processing end, CPU62 exports to pulse motor 43 (S12) with the climb command of intermittent presser foot 6, and processing is turned back to step S1.
The below processes (step S6) to aforesaid intermittent presser foot decline and is elaborated.Figure 13 is the flow chart that intermittent presser foot descends and processes.In Figure 13, Si (i=20,21 ...) represent each step.When the beginning intermittent presser foot descended processing, CPU62 counted the N value with data sequence and is stored in counting M (S20).Then, whether CPU62 is with reference to the data content corresponding with counting M value, to having the intermittent presser foot data to judge (S21).When the intermittent presser foot data are arranged (S21: be), CPU62 driving pulse motor 43 is carried out the decline of intermittent presser foot 6 and is processed.Intermittent presser foot 6 drops to by the position of intermittent presser foot data representation (S25).CPU62 enters step S7 with processing.When the beginning of intermittent presser foot Position Control, data sequence counting N and data sequence counting M are 0.In the stitch data of Figure 11, CPU62 changes to 0 with the position (highly) of intermittent presser foot 6.Intermittent presser foot 6 is positioned at the height identical with needle plate 2a upper surface.
When not having the intermittent presser foot data (S21: no), whether CPU62 is with reference to the data content corresponding with counting M value, to having the needle tracking data to judge (S22).When not having the needle tracking data (S22: no), CPU62 will count the M value increases by one (S23), and processing is turned back to step S21.When the needle tracking data are arranged (S22: be), CPU62 carries out the decline of intermittent presser foot 6 and processes (S24).Intermittent presser foot 6 moves to assigned position.The operator presets assigned position.Then, CPU62 enters step S7 with processing.
When not having the intermittent presser foot data in stitch data, aforesaid intermittent presser foot descends to processing and controls, so that intermittent presser foot 6 drops to the position that is set by guidance panel 66.
When carrying out the coiling processing, the operator is installed on shuttle 52 on the roll 53.The operator operates coiling key 67a is connected.The operator steps on operation start pedal 70.When processing was made in execution, the operator operated coiling key 67a is disconnected.
The below processes (S10) to aforementioned coiling and is elaborated.Figure 14 is the flow chart that the explanation coiling is processed.In Figure 14, Si (i=30,31 ...) represent each step.When beginning was processed in coiling, CPU62 read the initial value of expression intermittent presser foot 6 positions with reference to RAM64.CPU62 is raised to the position (S30) that initial value represents with intermittent presser foot 6.The position that initial value represents refers to work as the rotation of carrying out in order to wind the line along with main shaft 5, when intermittent presser foot 6 moves up and down, and the position that the intermittent presser foot 6 during decline does not contact with needle plate 2a.When intermittent presser foot 6 rose to the position that initial value represents, CPU62 drove sewing machine electromotor 72 (S31).When sewing machine electromotor 72 starts, always standby of CPU62 (S32: no) till the opening operation that startup pedal 70 is arranged.When the opening operation that starts pedal 70 is arranged (S32: be), CPU62 stops the driving (S33) of sewing machine electromotor 72, makes intermittent presser foot 6 declines (S34).Intermittent presser foot 6 drops to the position that sets in advance.The position that sets in advance referred to before beginning the coiling processing, operator's pressing position enter key 67b and the position set are (for example, when the rotation of carrying out in order to wind the line along with main shaft 5, when intermittent presser foot 6 moves up and down, the position that the intermittent presser foot 6 during decline contacts with needle plate 2a).Then, CPU62 turns back to step S3 with processing.
Make processing (S11) and be elaborated aforementioned.Figure 15 is that the flow chart of processing is made in explanation.In Figure 15, Si (i=40,41 ...) represent each step.When beginning to make processing, CPU62 starts sewing machine electromotor 72 (S40).Then, CPU62 accesses RAM64 and the data (S41) of reading data order count N.Then, whether CPU62 is with reference to the data content corresponding with data sequence counting N, to having the needle tracking data to judge (S42).When the needle tracking data are arranged (S42: be), CPU62 is with reference to built-in timer, and always standby begins (S43: no) till opportunity to becoming work feed.When having become work feed and begin opportunity (S43: be), CPU62 driving pulse motor 74 (S44) is made.Then, CPU62 counts N with data sequence and reduces by one (S47), and processing is turned back to step S41.
When not having the needle tracking data (S42: no), whether CPU62 is with reference to the data content corresponding with data sequence counting N, to having the intermittent presser foot data to judge (S45).When not having the intermittent presser foot data (S45: no), CPU62 stops the driving (S48) of sewing machine electromotor 72, and processing is entered step S12.When not having the intermittent presser foot data in step S45, data content is end data (with reference to Figure 11).
When the intermittent presser foot data are arranged (S45: be), CPU62 changes the position (S46) of intermittent presser foot 6 according to the intermittent presser foot data.Then, CPU62 enters step S47 with processing.
The below describes the effect of Sewing machines 1.When the making operation of coiling key 67a was arranged, intermittent presser foot 6 lifted in control device 60 control change mechanisms 13.Intermittent presser foot 6 moves to the position (when intermittent presser foot 6 descends, the position that does not contact with needle plate 2a) that initial value represents.Therefore, when intermittent presser foot 6 being set as the position identical with needle plate 2a, when carrying out the coiling processing, intermittent presser foot 6 rose before main shaft 5 rotations, thereby when main shaft 5 is rotated in order to wind the line, even intermittent presser foot 6 moves up and down, can not contact with needle plate 2a yet.Therefore, Sewing machines 1 can prevent that intermittent presser foot 6 from conflicting with needle plate 2a and produce noise.Control device 60 is the moving range of change intermittent presser foot 6 automatically, so that Sewing machines 1 makes well.
When the opening operation that starts pedal 70 is arranged, when stopping the rotary actuation of main shaft 5, mechanisms 13 are changed in control device 60 controls.Control device 60 moves to the position that sets in advance (for example, the intermittent presser foot 6 during decline contact with needle plate 2a upper surface position) with intermittent presser foot 6.Therefore, during the making of the first pin after processing when winding the line, processing cloth W and intermittent presser foot 6 can clamping upper threads 15.
The operator can be by operating the lower position (position that sets in advance) of input intermittent presser foot 6 to guidance panel 66.Control device 60 can be according to the input of guidance panel 66, the lower position of change intermittent presser foot 6.The operator can by setting the lower position of intermittent presser foot 6, not contact the intermittent presser foot 6 when descending with needle plate 2a.
The below to partial alteration the variation of above-mentioned embodiment describe.
1) the intermittent presser foot Position Control also can be applied to have the Sewing machines of outer presser feet mechanism.The outer presser feet (outer fabric pressing frame) that described outer presser feet mechanism has the flat shape that roughly is rectangle, this outer presser feet rises and descends.Particularly, control device 60 makes intermittent presser foot 6 and outer presser feet rise to position of readiness in step S5.Control device 60 drops to the external pressure underfooting and presses the position that processes cloth W.Control device 60 makes intermittent presser foot 6 declines (step S6).
2) among the present invention, when setting moving range, although set the lower position of moving range, also can capping position or middle position.
Claims (4)
1. Sewing machines comprises:
Intermittent presser foot, this intermittent presser foot and shank link and move along above-below direction, and press the processing cloth on the eedle presser from the top;
Change mechanism, this change mechanism change the moving range of the described intermittent presser foot that moves along above-below direction;
The shuttle winding mechanism, the rotating gang ground of this shuttle winding mechanism and main shaft is wound in bottom line on the shuttle; And
Control device, the described change of this control device driving mechanism;
It is characterized in that, comprise operating portion, this operating portion is used to indicate described bottom line is wound on the described shuttle,
When the indication of described operating portion was arranged, described control device drove described change mechanism, and the lower position of described moving range is changed to the position that does not contact with described needle plate, drove afterwards described main shaft.
2. Sewing machines as claimed in claim 1 is characterized in that, comprises hang up section, and this hang up section is used for sending ending to indicate makes described bottom line end to be wound in described shuttle,
When the termination indication of described hang up section was arranged, described control device made the driving of described main shaft stop the described change of rear drive mechanism, and the lower position of described moving range is changed to the position that sets in advance.
3. Sewing machines as claimed in claim 1 or 2 is characterized in that: comprise input part, the information that this input part is used for the described moving range of input setting.
4. Sewing machines as claimed in claim 3 is characterized in that: setting the information that described moving range uses is the information that represents described lower position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-325046 | 2008-12-22 | ||
| JP2008325046A JP2010142536A (en) | 2008-12-22 | 2008-12-22 | Sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101760904A CN101760904A (en) | 2010-06-30 |
| CN101760904B true CN101760904B (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910265951 Expired - Fee Related CN101760904B (en) | 2008-12-22 | 2009-12-21 | Sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2010142536A (en) |
| CN (1) | CN101760904B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013099423A (en) * | 2011-11-08 | 2013-05-23 | Brother Ind Ltd | Sewing machine |
| JP2017213212A (en) * | 2016-05-31 | 2017-12-07 | ブラザー工業株式会社 | Intermediate presser device and sewing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634417A (en) * | 1994-07-28 | 1997-06-03 | Aisin Seiki Kabushiki Kaisha | Fabric presser foot device of a sewing machine |
| CN2533141Y (en) * | 2002-02-01 | 2003-01-29 | 陈曲波 | Sewing machine |
| CN1676717A (en) * | 2004-03-31 | 2005-10-05 | 兄弟工业株式会社 | Presser foot lifting device for sewing machine |
-
2008
- 2008-12-22 JP JP2008325046A patent/JP2010142536A/en active Pending
-
2009
- 2009-12-21 CN CN 200910265951 patent/CN101760904B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634417A (en) * | 1994-07-28 | 1997-06-03 | Aisin Seiki Kabushiki Kaisha | Fabric presser foot device of a sewing machine |
| JP3528251B2 (en) * | 1994-07-28 | 2004-05-17 | アイシン精機株式会社 | Sewing machine presser foot device |
| CN2533141Y (en) * | 2002-02-01 | 2003-01-29 | 陈曲波 | Sewing machine |
| CN1676717A (en) * | 2004-03-31 | 2005-10-05 | 兄弟工业株式会社 | Presser foot lifting device for sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010142536A (en) | 2010-07-01 |
| CN101760904A (en) | 2010-06-30 |
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