CN1325715C - Circulating sewing machine - Google Patents

Circulating sewing machine Download PDF

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Publication number
CN1325715C
CN1325715C CNB01116543XA CN01116543A CN1325715C CN 1325715 C CN1325715 C CN 1325715C CN B01116543X A CNB01116543X A CN B01116543XA CN 01116543 A CN01116543 A CN 01116543A CN 1325715 C CN1325715 C CN 1325715C
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CN
China
Prior art keywords
action
cloth
line
readiness
thread cutting
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Expired - Lifetime
Application number
CNB01116543XA
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Chinese (zh)
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CN1317607A (en
Inventor
椎名隆行
柿崎康
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Juki Corp
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Juki Corp
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Publication of CN1317607A publication Critical patent/CN1317607A/en
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Publication of CN1325715C publication Critical patent/CN1325715C/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D05B19/12—Sewing machines having electronic memory or microprocessor control unit characterised by control of operation of machine
    • D05B19/14—Control of needle movement, e.g. varying amplitude or period of needle movement
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/12—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing
    • D05B3/14—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing perforated or press buttons
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/06—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B65/00—Devices for severing the needle or lower thread
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B65/00—Devices for severing the needle or lower thread
    • D05B65/06—Devices for severing the needle or lower thread and for disposing of the severed thread end ; Catching or wiping devices for the severed thread
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/30—Details
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/05—Magnetic devices

Abstract

To provide a cycle stitch sewing machine permitting only a thread cutting operation to be performed alone at the time when the operation of a cloth holding device is unnecessary. SOLUTION: In a single loop stitch sewing machine 100 provided with a thread cutting means comprising a moving knife 13 and the like, a boosting lever 5 raising a grip device 7 holding cloth, an operating arm 4 moving in one direction to operate the thread cutting means and the boosting lever 5 according to the moving position and a driving solenoid 1 driving the operating arm 4, which subsequently moves to a stand-by position, a thread-cutting finish position (a boosting start position) and a boosting finish position at the time of moving in the direction, there is provided a CPU53 controlling the duty factor of electric current flowing to the driving solenoid 1 in such a manner that the operating arm 4 can be stopped at the boosting start position.

Description

Circulating sewing machine
Technical field
The present invention relates to have the circulating sewing machine of thread cutting device and cloth-pressing device.
Background technology
Before this, possessing thread cutting device that contains blade and the cloth-pressing device that in making cloth is compressed and this thread cutting device and cloth-pressing device adopts the circulating sewing machine of common drive source driving known.Such circulating sewing machine drives aforesaid drive source when the circulation sewing finishing, carry out the thread cutting action of being undertaken by thread cutting device continuously and the rising of being undertaken by cloth-pressing device compresses action.
But when utilizing above-mentioned circulating sewing machine to make operation, next existence carries out the situation that secondary circulation is made after once circulating and making.For example, as shown in Figure 6, when being sewn in 4 hole clasp BT on the cloth, at first between 2 holes, form suture S1, next between remaining two hole, form suture S2.Under the situation that suture S1, S2 form continuously, form a transition wire X between the two.But, when not wishing transition wire is arranged in appearance, after suture S1 forms, line is cut off, form suture S2 afterwards.
But, above-mentioned circulating sewing machine can produce following problem: after initial suture forms, if carry out thread cutting action, as previously mentioned, cloth-pressing device also carries out continuous action, in a single day cloth-pressing device leaves original position, causes the deflection of cloth thus, and desired position has just been departed from the starting position of next suture.
Particularly, with the circulating sewing machine of cloth compact type, rise simultaneously with cloth-pressing device rising clasp and cloth under the state of clasp being clamped for cloth-pressing device, cloth-pressing device was fallen, clasp can occur and leave the origin-location, perhaps cloth produces folding state.Therefore, pin such problem that fractures can take place in the time of forming suture, and, because cloth compresses to rise prolonged circulation timei, reduce production efficiency.
Summary of the invention
The objective of the invention is to: when the circulation sewing finishing, in thread cutting device and cloth hold down gag the circulating sewing machine, make when circulating the end of making and not drive the cloth hold down gag, and only carry out thread cutting action, enhance productivity by common drive source driving.
In order to solve above problem, the invention of technical scheme 1, possess: the thread cutting device (tangent line bar 6, connecting rod the 8, the 1st linking arm the 10, the 2nd linking arm 11, cutting blade 13, cutter stator 14) that line is cut off, and for cloth is removed, the pushing-up device that the cloth-pressing device that cloth is compressed rises; Action component (movement arm 4), described action component be connected with thread cutting device, pushing-up device respectively and from position of readiness when a direction moves, make the action of thread cutting device and pushing-up device corresponding to the shift position; And with action component when a direction moves as the aforementioned, its sequence of positions that moves is: thread cutting device begins the tangent line starting position of tangent line, thread cutting device finishes the tangent line end position of tangent line, pushing-up device begin to go up the pushing cloth apparatus on push the beginning position open, pushing-up device finishes the last knot bundle position of the rising of cloth-pressing device, it is characterized in that: also have control device (CPU 53), its accessory drive so that action component can stop the position to pushing the beginning open from the tangent line end position.
In the invention of technical scheme 1, along with moving of action component, thread cutting action and on push and movingly carry out continuously, in case push the beginning position on surpassing open, press-out just begins to carry out.But according to the invention of technical scheme 1, under the control of control device, action component can stop to pushing the beginning position open from the tangent line end position, therefore, after the thread cutting action, does not begin press-out, can only carry out thread cutting action separately.
So the occasion of making continuously in the nearly scope that does not need cloth-pressing device to rise is only carried out thread cutting action, there is not the action of unnecessary cloth-pressing device, in addition, because the problem that cloth-pressing device rises and causes can not take place in the centre, so production efficiency is improved.
Here, so-calledly begin to comprise to pushing open between the beginning position from the tangent line end position: the tangent line end position, on push the beginning position open, and the position between two positions.In addition, also can be the tangent line end position and on push open the beginning position almost be same position.
In addition, can adopt solenoid with plunger or stepper motor etc. as driving means.
In the circulating sewing machine of technical scheme 1, invention as technical scheme 2, control device can adopt the constituted mode of following accessory drive, promptly, making action component is basic point with the position of readiness, move to from the tangent line end position to the position of pushing the regulation of beginning the position open, get back to position of readiness then.In addition, get back to position of readiness, can adopt the driving that relies on aforementioned drive unit, also can adopt the formation that relies on other power such as spring to make its answer for making action component.
In the circulating sewing machine as technical scheme 2, the invention of technical scheme 3 is characterized in that: possess: thread cutting device, and the below of this device cut-out sewn object is connected in the line between pin and the sewn object;
Pull out line apparatus (wire drawer device 40), behind the tangent line, this device is being extracted the line that is connected on the pin above the sewn object;
Selecting arrangement, effective still invalid selection of the action of pulling out line that it is done pulling out line apparatus;
Above-mentioned control device carries out following control: move selectedly when effective when pulling out line, after thread cutting device carries out thread cutting action, always pull out the line action; When above-mentioned when pulling out the line exercise void, action component is moving to the occasion of getting back to position of readiness behind the knot bundle position from above-mentioned position of readiness, do not pull out the action of line, move to the tangent line end position from above-mentioned position of readiness and pushing the occasion of getting back to position of readiness behind the position of the regulation between the beginning position, the action of pulling out line open.
Invention according to technical scheme 3, under the control of control device, even pulling out line apparatus is being selected as when invalid, action component moves to from the tangent line end position to the position of pushing the regulation the beginning position open, get back to the occasion of position of readiness then, just only carry out the occasion of getting back to original position after the thread cutting action, also pull out the line action.Therefore, the occasion of making continuously in the nearly scope that cloth-pressing device needn't rise is positively pulled out the line action at every turn after making, make an end of the line that is connected on the pin be in free state, can make continuously swimmingly.
In addition, it is invalid similarly to select, and make action component move to the occasion of knot bundle position, that is, with the occasion that cloth-pressing device is risen, though do not pull out the line action, but the occasion that cloth-pressing device is risen, if remove sewn object, an end that then is connected in the line on the pin becomes free state, and the nonessential line that pulls out moves.According to technical scheme 3,, pull out line in the time of can omitting unnecessary cloth-pressing device and rise by selecting to pull out the line exercise void.
In each circulating sewing machine of technical scheme 1～3, the invention of technical scheme 4 is characterized in that: drive unit adopts solenoid; Pushing-up device has joint portion (protrusion tab 5a), moves at action component and pushes the beginning on above-mentioned open during the position, and the part of this joint portion and cloth-pressing device combines, and by this joint portion cloth-pressing device is risen; Make action component from position of readiness when above-mentioned direction moves, control device is giving in elder generation's stipulated time solenoid, make the electric current of prescribed level flow through above-mentioned solenoid, behind the afore mentioned rules effluxion, make with the electric current littler and flow through solenoid, action component can not be moved to above-mentioned direction from pushing the beginning position open than the electric current of afore mentioned rules size.
According to the invention of technical scheme 4, invention that can specific implementation technical scheme 1.That is, begin to pass to the electric current of prescribed level, after the stipulated time warp, by the electric current littler than the electric current of afore mentioned rules size, thus, action component can not be moved beyond pushes the beginning position open, stops in the last beginning position of pushing open.
Herein, the concrete grammar of Current Control is not particularly limited, can recently change the size that flows through solenoidal electric current by the duty of control wave, also can be by current control loop is set, the size of electric current makes it pass through solenoid in this loop of appropriate change.
In addition, about the stipulated time, it is just passable importantly to finish thread cutting action, in case action component begins action, has both made littler electric current, as long as thread cutting action is carried out, before action component reaches the tangent line end position, switch to the electric current littler and get final product than the electric current of prescribed level.
In each circulating sewing machine of technical scheme 2～4, as the invention of technical scheme 5, the Sewing machines that goes for stitching a button.Promptly, the invention of technical scheme 5 is that 4 hole clasps are sewn in the Sewing machines of stitching a button on the cloth, it is characterized in that: control device carries out following control, promptly, after the 1st sewing finishing that a pair of clasp hole is sewn on the cloth, making action component is basic point with the position of readiness, move to from the tangent line end position to pushing open the beginning position, tangent line is got back to position of readiness after finishing, then, after the 2nd sewing finishing that other a pair of clasp hole is sewn on the cloth, make action component move to knot bundle position from position of readiness.
According to the invention of technical scheme 5, when making 4 hole clasps, be sewn in a pair of clasp hole on the cloth after, only carry out thread cutting action, and drive pressure cloth apparatus not, therefore, first make and the 2nd make between, do not have the action of unnecessary cloth-pressing device, production efficiency is improved thus.In addition, second makes when beginning, and can not take place to cause fractureing of pin etc. because of the dislocation of clasp and cloth, and on this point, production efficiency also is improved.Therefore, can make clasp expeditiously.
Description of drawings:
Fig. 1 is the block diagram as the single-line chains seam sewing machine of one embodiment of the present of invention.
Fig. 2 is provided in a side of the tangent line on the single-line chains seam sewing machine of Fig. 1, the oblique view of pushing-up device 70.
Fig. 3 is the oblique view of a part of the device 70 of Fig. 2.
Fig. 4 is provided in a side of the front elevation of the wire drawer device on the single-line chains seam sewing machine of Fig. 1.
Fig. 5 is the side view of the part of wire drawer device.
Fig. 6 is the front elevation of 4 hole clasps.
Fig. 7 is that the 4 hole clasps that the control device by Fig. 1 carries out are made the programme diagram of processing procedure.
Fig. 8 makes in the processing procedure at 4 hole clasps, for the time diagram of shift position that movement arm and wire drawer link rod are described.
Fig. 9 pulls out line action processing procedure programme diagram.
Figure 10 is the programme diagram of thread cutting action processing procedure A.
Figure 11 is the programme diagram of thread cutting action processing procedure B.
Figure 12 is tangent line, the oblique view that pushing-up device has changed.
The specific embodiment
Below the contrast accompanying drawing is elaborated to form of implementation of the present invention.
Fig. 1 is the schematic diagram of expression as the single-line chains seam sewing machine 100 necessary formations of the Sewing machines of stitching a button, and has wherein omitted other sensor etc., and the present invention will be described with this.
Single-line chains seam sewing machine 100 comprises: control device 50, be connected the electrical motor of sewing machine 59 on this control device 50, and drive solenoid 1, wire drawer solenoid 42.
Control device 50 is provided with CPU 53 (CPU), RAM 54 (random memory), reaches ROM 55 (read-only memory).Information such as the various stitch datas of ROM 55 storages, program.The data that RAM 54 memories are imported from control panel 52, result of calculation etc.CPU53 constitutes control device of the present invention, and CPU 53 is based on carrying out various computings from the information of ROM 55 and RAM 54 inputs, and carries out this operation result, and control drives each device that constitutes Sewing machines 100.
Starter pedal 51 according to operator's operation, produces the signal of making the action beginning.
In addition, operation control panel 52 is provided with various keys, press button, is used for importing making needed various parameter.Particularly pull out the effective or invalid of line action, be provided with the press button that constitutes selecting arrangement of the present invention in order to select.
Among Fig. 2, device 70 be for carry out single-line chains seam stitch a button Sewing machines 100 tangent line and on the device that pushes away.
As the driving solenoid 1 of drive unit, be fixed on the frame (not shown) of Sewing machines 100, by driving loop 57, under the control of CPU 53, move.Specifically, drive solenoid and driven by pulse voltage, CPU 53 can recently control solenoidal output by changing duty.Be fixed with cardinal extremity as the movement arm 4 of action component in the end of the plunger 1a that drives solenoid 1.At the front end of movement arm 4 be fixed between the pin 20 in the sewing machine frame and dispose the 1st spring 2, thus, 2 pairs of movement arms of the 1st spring 4 produce the pulling force along the R direction of Fig. 2, make movement arm 4 end and the interior 3 one-tenth contact conditions of retainer that dispose of sewing machine frame before.
In the front of movement arm 4, connect a end as the upper push-rod 5 of pushing-up device free to rotately.This upper push-rod 5 roughly becomes L word shape, can be fixed on the sewing machine frame freely to rotate at its sweep.The other end of upper push-rod 5 is provided with horizontal protuberance 5a.
End after the clamping device 7 that is provided with on the sewing machine base that does not illustrate among the figure is supported thereon by installation shaft 76 relative feeding platform (not shown on the figure) earth's axis that can fluctuate.The leading section of this clamping device 7 is fixed with clasp clip 21, when stitching a button, clasp is played a supportive role.
The below of clasp clip 21 is provided with the needle plate 12 that is fixed in sewing machine base.
In addition, at the central portion of clamping device 7 be disposed between the not shown pin above it, hang with the 2nd spring 15 that bigger elastic force is arranged than the 1st spring 2, whole clamping device 7 relies on the 2nd spring 15 to be pressed towards the below.Rely on the active force of the 2nd spring, cloth is clamped be pressed between clasp clip 21 and the needle plate 12.
The hook 7a that makes L word shape is erected to be fixed on the clamping device 7.The horizontal component of this hook 7a is configured to relative with the top of above-mentioned protuberance 5a, and to E between the crack of leaving setting therebetween, when upper push-rod 5 was pressed the counter clockwise direction rotation of Fig. 2, protuberance 5a rose, and protuberance 5a and hook 7a contact and it is upwards pushed away.
On the other hand, an end of tangent line bar 6 rotates the base end part that freely is connected in movement arm 4, and the pars intermedia of tangent line bar 6 rotates and freely is supported on the sewing machine frame.At the other end of tangent line bar 6, cam roller 6a is forwards outstanding.
The end revolution freely is supported on the sewing machine frame on the connecting rod 8, and the intermediate portion forms the roughly cam hole 8a of circular arc, and above-mentioned cam roller 6a is embedded among this cam hole 8a slidably, thereby connecting rod 8 is connected on the tangent line bar 6.
The bottom of connecting rod 8 is by the pin 22 rotatable vertical component effects that freely are connected the web 9 of L font.
One end of the 1st armite 10 rotates the horizontal part that freely is attached at web 9, and an end of the 2nd armite 11 is fixed in the other end of the 1st armite.The leading section 11a of the 2nd armite 11 rotates and freely is connected on the cutting blade 13, and as shown in Figure 3, below needle plate 12, cutting blade 13 can be supported thereon with respect to needle plate 12 freely to rotate by normal pin 23.At needle plate 12, the opposite side relative with cutting blade 13 clips pin hole 25, and fixed blade 14 is fixed thereon.
Cutting blade 13 is the center when the counter-clockwise direction of Fig. 3 is rotated with pin 23, capture by after the line on the pin of pin hole 25 and fixed blade 14 chimeric, the line on the pin is cut off.
As previously discussed, thread cutting device of the present invention is made of tangent line bar 6, connecting rod 8, first armite 10, second armite 11, cutting blade 13, fixed blade 14.
In this Sewing machines 100, behind tangent line,, as shown in Figure 4, be provided with the wire drawer device 40 that pulls out line in order to draw from planting the line T that to be connected on the pin 30.
The wire drawer device has spiral piping arrangement 41, wire drawer link rod 44, wire drawer 45, the installing plate 46 of the side of the cradle portion 102 that is installed in single-line chains seam sewing machine 100.Spiral piping arrangement 41 is made of wire drawer solenoid 42 and plunger 43, and wire drawer solenoid 42 is by driving loop 58 by CPU 53 controls, and plunger 43 pulls to the arrow A direction by the spring that does not illustrate on the figure usually.
One end of wire drawer link rod 44 is linked on the plunger 43 rotationally, at its other end, is rotatably mounted wire drawer 45 by pin 24.As shown in Figure 5, from the side, wire drawer 45 is positioned at the left of pin 30, forms in the bottom of wire drawer 45 45a of portion to right-hand extended prolonging.
In addition, an end is fixed in the installing plate 46 of the cradle portion 102 of Sewing machines, at its other end, is rotatably mounted wire drawer 45 by pin 24b.
In the wire drawer device 40 that constitutes like this, behind the tangent line,, plunger is driven along the B direction if overcoming spring tension, and then wire drawer 45 will be that middle mind-set C direction is rotated with pin 24b, at this moment, links the line that plants from pin 30 and the 45a of portion and extract by prolonging.After pulling out line, plunger 43 is subjected to the pulling force of above-mentioned spring to get back to original position.
In addition, for the action of the wire drawer device 40 behind the tangent line, can select the effective or invalid of action by guidance panel 52, select when effective, wire drawer device 40 necessarily moves behind the tangent line, selects when invalid, and wire drawer device 40 is failure to actuate behind the tangent line in principle.
In single-line chains seam sewing machine 100, when clamping clasp, above-mentioned clasp is sewn on the cloth that is clipped between clasp clip and the needle plate 12 by clasp clip 21, after this made the end of job, aforementioned means 70 was done following action.
That is, drive solenoid 1 and connect, the pulling force that plunger 1a overcomes the 1st spring 2 is pulled.Thus, movement arm 4 moves along the P direction, and tangent line bar 6 and upper push-rod 5 beginnings are to counterclockwise rotating.
Tangent line bar 6 is in case rotation is moved along the Q direction by connecting rod 8, the 1 armites 10 and the 2nd armite 11, and thus, cutting blade 13 rotates along the counter clockwise direction of Fig. 3, between fixed blade and cutting blade line is cut off.
During this thread cutting action, also to counterclockwise rotating, protuberance 5a is moved upward upper push-rod 5, and still, upper push-rod 5 moves the mobile initial stage of the distance of aforementioned gap E, and protuberance 5a and hook portion 7a do not carry out chimeric.Almost finish simultaneously with tangent line, that is, 5 of upper push-rods moved above-mentioned gap E apart from the time, protuberance 5a and hook portion 7a carry out chimeric, are moved further by upper push-rod 5, the elastic force that hook portion 7a overcomes the 2nd spring 15 is highlighted the 5a of portion and pushes to.Along with hook portion 7a by on push away, clamping device 7 is that upwards rotate at the center with installation shaft 7a, clip 21 leaves to needle plate 12 tops, stops at desired location movement arm 4, clamping device 7 also stops operating thereupon.In this state, can take out clasp and cloth.
In addition, when this clamping device 7 rises (press-out), along with movement arm 4 to the moving of P direction, tangent line bar 6 also rotates continuously, but since the shape of cam hole 8a rotate and pass on less than on the connecting rod 8a.
When driving solenoid 1 shutoff, because the elastic force of the 1st spring the 2, the 2nd spring 15, device 70 returns to original state.
In addition, wire drawer device 40 carries out the above-mentioned line action of pulling out after thread cutting action finishes, the line that is connected on the pin is connected above the cloth, with this, for making next time ready.
From top description as can be seen, tangent line, on push away among the action that connects, initial thread cutting action is that the elastic force that overcomes the 1st more weak spring makes each parts do mechanical motion; On the other hand, press-out is the elastic force that overcomes strong the 2nd spring, and the processes that clamping device 7 is all upwards pushed away and thread cutting action are compared and needed much bigger power.
According to the above, the action of the device after the sewing finishing 70 is described, still, as required, can control it and push away on not carrying out, only carry out tangent line.
In this situation, the occasion that does not have transition wire ground that 4 hole clasp BT are made with single-line chains seam sewing machine 100 of the present invention is during the making continuously of suture S1 and S2, because do not need press-out, so only carry out thread cutting action.In addition, in this occasion, just do not begin making of suture S2 if do not pull out the line action after the thread cutting action of suture S1, the position of clasp hole H in the cloth will be stayed in the end of the line after then cutting off, and from appearance, has stayed transition wire.Therefore, after above-mentioned occasion thread cutting action, must make 40 actions of wire drawer device,, also pull out the line action exceptionally even pass through the invalid occasion of Action Selection of 52 pairs of wire drawer devices 40 of operation panel to 42 energisings of wire drawer solenoid.
Occasion with regard to this 4 hole clasp BT does not have transition wire ground to make will describe by the flow chart of Fig. 7 and the sequential chart of Fig. 8.
The sequential chart of Fig. 8 has shown the shift position of movement arm 4 and has made the time relationship of each action of processing, shown the shift position of the wire drawer link rod 44 that drives wire drawer 45 simultaneously.The time course of making processing of the transverse axis presentation graphs 7 of Fig. 8, the longitudinal axis are represented movement arm 4, wire drawer link rod 44 each positions that relatively move.
As previously mentioned, the tangent line press-out is along with moving and carry out along P direction shown in Figure 2 by driving movement arm 4 that solenoid 1 drives.That is, movement arm 4 has certain corresponding relation in a position and the action that connects that the P direction moves.The position of movement arm 4 was the tangent line starting position when thread cutting device tangent line began, similarly, shift position when the thread cutting device tangent line finishes is the tangent line end position, shift position when upper push-rod 5 makes clamping device 7 rise beginning is pushed the beginning position open on being, and upper push-rod 5 to make the shift position when respectively finishing on the compress be last knot bundle position.
In the example that Fig. 8 provides, position of readiness and tangent line starting position, the tangent line end position and on push open the beginning position substantially the same.The time relationship of pulling out the line action when in addition, representing thread cutting action with the shift position of shift position that wire drawer link rod 44 is shown simultaneously and movement arm 4.
Fig. 7 makes the flow chart of processing procedure by the four hole clasps that control device 50 carries out, the clasp BT of Fig. 6 is sewn on the cloth.This processing procedure is divided into: form the 1st operation (the 1st makes) of suture S1, form suture S2 the 2nd operation (the 2nd makes).
(the time t of Fig. 8 when beginning is handled in making of Fig. 7 0), in order to prepare cloth and clasp, clamping device 7 is in the state that rises most, and as shown in Figure 8, movement arm 4 is positioned at the last knot bundle position of the most close solenoid 1 side.In addition, wire drawer link rod 44 is in the position of readiness of the top of Fig. 4 by the power of the spring that do not illustrate among the figure.
In the processing procedure of Fig. 7, the operator is ready to cloth and clasp, and operation starter pedal 51 beginning the 1st suture S1 make.At first, drive solenoid 1 at step S1 and turn-off, as shown in Figure 8, movement arm 4 moves to R direction (Fig. 2), touches retainer 3 and gets back to position of readiness.Therefore, device 70 is got back to position of readiness.
Next, at step S2 starting electrical motor of sewing machine, begin the 1st sewing procedure (the time t of Fig. 8 1).
In step 3, whether sent the determination processing of tangent line instruction, carry out such judgement repeatedly, up to the sewing finishing of suture S1.
In sewing finishing and sent the occasion of tangent line instruction, what the thread cutting action of carrying out step S4 was handled A (Figure 10) and step S5 pulls out line action processing.Thus, as shown in Figure 8, movement arm 4 beginnings are moved (time t to the P of Fig. 2 direction 2After), and move to till the tangent line end position.Movement arm 4 is parked in the tangent line end position in setting-up time, setting-up time is through (the time t of Fig. 8 3) after, be OFF if drive solenoid 1, then get back to position of readiness.The control program of handling for this thread cutting action remakes description later on.
In addition, in the time that is parked in the tangent line end position in this thread cutting action processing procedure, wire drawer solenoid 42 is energized, wire drawer link rod 44, move to from position of readiness as shown in Figure 8 and pull out toe-in bundle position, position of readiness is got back in wire drawer solenoid 42 outages then.
At the time of Fig. 8 t 3, after driving solenoid 1 is OFF, electrical motor of sewing machine 59 is stopped at the step S6 of Fig. 7.Next, (time t when movement arm 4 is almost got back to position of readiness 4), at step S7, starting electrical motor of sewing machine 59 once more, beginning suture S2 makes.
At step S8, carry out the same judgement of above-mentioned steps 3 repeatedly, in sewing finishing, and the occasion that is issued of tangent line instruction, at step S9 to the effective of wire drawer action or invalidly judge.Wire drawer action does not effectively have only to carry out thread cutting action processing procedure B (step S10) when selected, effective when selected, carry out and includes wire drawer and handle action (the thread cutting action processing procedure B (step 11) of step 12) and press-out.
As shown in Figure 8, these actions rely on movement arm 4 to begin to move (time t from position of readiness 5After), move to the tangent line end position then, be moved further supreme knot bundle position and carry out.
In addition, select earlier to pull out line and effectively talk about if given by the operator, carried out the thread cutting action processing procedure and pulled out line action processing procedure by step S11, S12, wire drawer link rod 44 moves to from as shown in Figure 8 position of readiness and pulls out toe-in bundle position, returns then.At last, electrical motor of sewing machine is stopped, this processing procedure finishes.
Fig. 9 represents to pull out line action processing procedure.Judge whether passing through certain hour (being 50ms) herein at step S21.Carry out the standby of certain hour at step S21, wait for the end of thread cutting action.
After the certain hour warp of step S21, at step S22, drive the processing procedure of wire drawer solenoid 42, thus, begin to pull out the line action.Next, at step S23, judge whether passing through certain hour (being 50ms) herein.The regular hour of timing here is because wire drawer 45 pulls out the toe-in bundle and needs the regular hour from beginning to move to.
Next, at step S24, carry out the processing procedure with 42 shutoffs of wire drawer solenoid, this pulls out line action processing procedure and finishes.
As shown in Figure 8, when making of Fig. 7 handled, after the 1st operation, movement arm 4 was parked in the tangent line end position, moves to knot bundle position after the 2nd operation.The duty of said process dependence control driving solenoid 1 when driving time is realized, as Figure 10, shown in Figure 11.
Figure 10 is the flow chart of thread cutting action processing procedure A of the step S4 of Fig. 7.
After thread cutting action processing procedure A begins, drive solenoid 1 with dutycycle 100% at step J1.
Next, at step J2, the solenoid-activated from step J1 is begun whether to pass through certain hour (60ms) judge.If do not pass through certain hour, carry out this judgement repeatedly, if passed through certain hour, the subsequent step J3 that carries out.
At step J3, make dutycycle become 50% processing, at step J4, wait for through certain hour (240ms).So far, tangent line finishes fully.
Next,, will drive solenoid 1 and turn-off, finish this processing procedure at step J5.Drive solenoid 1 and have no progeny for closing, because the elastic force of the 1st spring 2, each parts such as plunger 1a, movement arm 4 are got back to original state.
As shown in figure 10, why driving solenoid with 100% dutycycle at first, is because movement arm 4 begins to move at the elastic force that the state of being failure to actuate overcomes the 1st spring 2, needs the power of certain intensity.But within a certain period of time time qualified with dutycycle 100% makes dutycycle become 50%, is to need powerful power because the rising of clamping device 7 drives, and do not accomplish with dutycycle 50% at once.Thus, the protuberance 5a that movement arm 4 is parked in upper push-rod 5 is embedded in the position of the hook portion 7a of clamping device 7, pushes the beginning position open on promptly.
Next, the thread cutting action processing procedure B to step S10, the S11 of Fig. 7 describes.Figure 11 is the flow chart of these processing procedures.
At first, at step J11, drive solenoid 1 with dutycycle 100%.
Next, at step J12, the solenoid-activated from step J11 is begun whether to pass through certain hour (75ms) judge.If there is not process, then carry out this judgement repeatedly, if passed through certain hour, the then subsequent step J13 that carries out.Like this, if adopt the certain hour (herein be 75 millisecond) of asynchronism(-nization) in Figure 10 flow process of dutycycle 100%, solenoid continues output to be made to push away and is enough to the powerful power of carrying out, and after thread cutting action, also can carry out the vertical motion of clamping device 7.Because finish in case rise, need only keep this state, so, make dutycycle drop to 50% processing, finish this flow process at step J13.Keep the state of dutycycle 50%, the state after clamping device 7 keeps rising.
When utilizing above-mentioned single-line chains seam sewing machine 100 to be sewn in 4 hole clasps on the cloth, after the 1st sewing procedure, at first to pass to dutycycle be 100% pulse current to driving solenoid 1, make dutycycle become 50% behind the 60ms, protuberance 5a by upper push-rod 5 can not boost clamping device 7, and movement arm 4 is parked in pushes the beginning position open.Therefore, after the 1st operation, only carry out thread cutting action, do not have the vertical motion of unnecessary clamping device 7, and, can not take place to have improved production efficiency midway because of clamping device 7 accidents such as the clasp displacement, the cloth that cause is overlapping that rise.
In addition,, pull out the selected invalid occasion of line apparatus, make movement arm 4 move to knot bundle position, that is, when clamping device 7 is risen, do not pull out the line action by control panel 52.That is, remove sewn object, an end that is connected in the line on the pin 30 becomes free state, no longer needs to pull out line action, therefore by as above-mentioned selection pull out the invalid of line action, pull out line in the time of can omitting unnecessary clamping device 7 and rise.
On the other hand, similarly pull out line apparatus and select when invalid, movement arm 4 is moved to push open when restoring to the original state behind the beginning position, that is, only pull out the line action behind the tangent line when the 1st operation.Thus, an end that is connected in the line on the pin 30 after the 1st operation becomes free state, can successfully begin the 2nd sewing procedure.
In addition, drive the dutycycle control of solenoid 1, do not adopt 100% and 50% two rank, also be fine with following formula and be changed to 3 grades.Elapsed time at different levels also can suitably change.In addition, do not adopt dutycycle control, can adopt to be provided with to drive solenoidal current control loop yet, be sent to solenoidal current value by change from this loop and control.
＜variation 〉
Adopt solenoid to make drive unit in the foregoing description, still, also can adopt stepping motor shown in Figure 12.
Figure 12 show tangent line, on the device 80 that pushes away.These device 80 devices 70 with Fig. 2 are the same basically, so same parts have adopted identical symbol, omit their explanation, below different points are described.
In device 80, drive unit adopts stepping motor.Gear drive 82 is installed on the output shaft of stepping motor 81.
On the other hand, metal bearing 83 is fixed on the sewing machine frame, is provided with the tooth bar 84 that meshes with said gear transmission device 82 on these bearings, and an end of movement arm 4 is fixed on the front end of this tooth bar.
In device 80,,, movement arm 4 is moved to P direction and R direction by means of tooth bar 84 by driving stepping motor 81.At this moment, be added in pulse signal on the stepper motor, press setpoint distance shift action arm 4, can as Fig. 8 among the above-mentioned embodiment, control by control.
In addition, the present invention is not limited to the foregoing description and variation, can do suitably to change.For example, though the tangent line end position and on to push the beginning position open basic identical,, it is also passable to push the beginning position on behind the tangent line end position being open.
In addition, though in the above-described embodiments, the situation that the 4 hole clasps of being made up of 2 operations are made is suitable for for various the making of forming more than the operation by 3 also.
In addition, be not limited to the single-line chains seam sewing machine as circulating sewing machine.
According to the invention of technical scheme 1 and technical scheme 2, under the control of control device, action component can stop at from the tangent line end position and begin not begin press-out after the thread cutting action the position to pushing open, can only carry out thread cutting action separately.Therefore, when making continuously, only carry out thread cutting action in the nearly scope that does not need cloth to move, do not have the action of unnecessary cloth-pressing device, and the accident that rises midway and cause because of cloth-pressing device can not take place, production efficiency is improved.
Invention according to technical scheme 3, except that the invention effect of technical scheme 1, technical scheme 2, under the control of control device, both made that to pull out line apparatus selected when invalid, action component moves to from the tangent line end position to pushing the position that the beginning sets the position open, the occasion of getting back to position of readiness then, promptly, only carry out the occasion that thread cutting action is got back to original position then, pull out the line action.Thus, the occasion of making continuously in the nearly scope that does not need cloth-pressing device to rise after making each time, can be pulled out line effectively, and an end that is connected in the line on the pin drawn from cloth, thereby can positively prevent the formation of transition wire.In addition, it is invalid similarly to select, when making action component move to knot bundle position, that is, the occasion that cloth-pressing device is risen is not though pull out the line action, but when pushing-up device is risen, in a single day sewn object is removed, and an end that is connected in the line on the pin just becomes free state, and the nonessential line that pulls out moves.According to technical scheme 3, by selecting to pull out the invalid of line action, when cloth-pressing device rises, unnecessary pull out line and can omit.
According to the invention of technical scheme 4, invention that can specific implementation technical scheme 1.That is, by beginning to pass to the electric current of prescribed level, the stipulated time through after, pass to the electric current littler again than afore mentioned rules electric current, action component can not be moved to surpass and pushes the beginning position open, the result stops at and pushes the beginning position open.
According to the invention of technical scheme 5, during the making of 4 hole clasps, be sewn in a pair of clasp hole on the cloth after, only carry out thread cutting action, cloth-pressing device does not drive, therefore, the 1st make make with the 2nd during, do not have the action of unnecessary cloth-pressing device, production efficiency is improved.In addition, the 2nd makes when beginning, and fractureing of pin that the displacement because of clasp, cloth causes etc. can not taken place, and on this point, production efficiency also is improved.Therefore, make clasp expeditiously and become possibility.

Claims (5)

1. circulating sewing machine possesses: remove in order to make cloth, and make the pushing-up device that cloth-pressing device that cloth is compressed rises and be positioned at the thread cutting device that cloth-pressing device nearby cuts off suture, it is characterized in that possessing:
Be connected to the action component of thread cutting device and pushing-up device, this action component can move thread cutting device and pushing-up device successively from position of readiness along a direction, the order that moves is: the tangent line starting position that the thread cutting device tangent line begins, the tangent line end position that the thread cutting device tangent line finishes, pushing-up device make that the rising of cloth-pressing device begins on push the beginning position open, the last knot bundle position that pushing-up device finishes the rising of cloth-pressing device, and action component makes thread cutting device and pushing-up device carry out corresponding action corresponding to each shift position;
Make action component move to the drive unit of above-mentioned each position;
Control device, this control device can accessory drive make action component from above-mentioned position of readiness when a direction moves, stopping from moving the tangent line end position is before push the beginning position open.
2. circulating sewing machine as claimed in claim 1, it is characterized in that: control device comes accessory drive like this, that is, making action component is basic point with the position of readiness, move to from the tangent line end position to the position of pushing the regulation of beginning the position open, get back to position of readiness then.
3. circulating sewing machine as claimed in claim 2 is characterized in that possessing:
Below sewn object, the above-mentioned thread cutting device of the line cut-out between pin and the object to be sewn will be connected in;
Behind the tangent line, above sewn object, the line apparatus that pulls out that line on the pin extracts will be connected in;
To pulling out the effective or invalid selecting arrangement of selecting of line action by what pull out that line apparatus carries out; And
The control device of controlling in the following manner, promptly, the above-mentioned line Action Selection of pulling out is when effective, after the cut-out action of being undertaken by thread cutting device, always pull out the line action, the above-mentioned line Action Selection of pulling out is when invalid, action component moves to the occasion of getting back to position of readiness behind the knot bundle position from above-mentioned position of readiness, do not pull out line action, to the occasion of position of readiness, pull out the line action after moving to the tangent line end position and push the position of the regulation between the beginning position open from above-mentioned position of readiness.
4. circulating sewing machine as claimed in claim 1 is characterized in that:
Drive unit is a solenoid;
Pushing-up device has the joint portion chimeric with cloth-pressing device, and action component moves to be pushed open when beginning the position, by the joint portion cloth-pressing device is risen;
Control device is controlled like this, promptly, make action component from position of readiness when above-mentioned direction moves, beginning is at the appointed time to the electric current of solenoid link with prescribed level, behind above-mentioned effluxion, with the electric current littler, action component can not be moved solenoid link from pushing the beginning position open to an above-mentioned direction than the electric current of afore mentioned rules size.
5. circulating sewing machine as claimed in claim 2, it is characterized in that: this Sewing machines is for being sewn in 4 hole clasps in the Sewing machines of stitching a button on the cloth, control device is controlled like this: after a pair of clasp hole is sewn in the 1st sewing finishing on the cloth, make action component with the position of readiness be basic point move to the tangent line end position and on push open the beginning position between, tangent line is got back to position of readiness after finishing, next, after another is sewn in the 2nd sewing finishing on the cloth to the clasp hole, make action component move to knot bundle position from position of readiness.
CNB01116543XA 2000-04-12 2001-04-12 Circulating sewing machine Expired - Lifetime CN1325715C (en)

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JP111100/2000 2000-04-12
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JP2001062025A JP4782295B2 (en) 2000-04-12 2001-03-06 Cycle sewing machine

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KR100658273B1 (en) 2006-12-14
CN1317607A (en) 2001-10-17
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JP4782295B2 (en) 2011-09-28
JP2001353385A (en) 2001-12-25
DE10115384A1 (en) 2001-11-15

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