CN1125896C - Work-feeding means for sewing machine - Google Patents
Work-feeding means for sewing machine Download PDFInfo
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- CN1125896C CN1125896C CN 00126952 CN00126952A CN1125896C CN 1125896 C CN1125896 C CN 1125896C CN 00126952 CN00126952 CN 00126952 CN 00126952 A CN00126952 A CN 00126952A CN 1125896 C CN1125896 C CN 1125896C
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Abstract
Provided is a feeder for a sewing machine, the feeder comprises a needle feed mechanism provided in a sewing machine arm, a needle feed driving shaft for giving driving force to the needle feed mechanism, a needle feed driving force transmission mechanism for converting the rotational motion of an upper shaft into rocking motion and transmitting me rocking motion to the needle reed driving shaft through a connecting arm fixed to the needle feed driving shaft, a feed lever connected to the needle feed driving force transmission mechanism for switching a feed direction, a lower feed mechanism provided in a sewing machine bed, a lower feed driving shaft for giving driving force to the lower feed mechanism, and a lower feed driving force transmission mechanism for transmitting the rocking motion the connecting arm to the lower feed driving shaft.
Description
The present invention relates to a kind of transport of making the Sewing machines that thing moves by each pin that is suitable for making.
In general, in Sewing machines,, have by being configured in the conveying tooth edge of making the thing below and make the following transport that direction moves as transport; Make above-mentioned carry down tooth and with this time carry tooth synchronously and the pin edge of passing sewn object make direction and move needle feeding apparatus; Clamping make thing at the above-mentioned conveying tooth of two position configuration up and down along making the transport up and down that direction moves; And have up and down transport and needle feeding apparatus and transfer the various known transports such as comprehensive transport of sewn object by both.
And conduct following transport in the past as shown in Figure 9, is provided with down the interior side that the conveying stand 4 of carrying tooth 3 is configured in Sewing machines base plate 5.The chimeric cam up and down 7 that has on the tip that is fixed on lower shaft 6 in the forked portion 4a that carries stand 4 tips.In addition, as the horizontal feed axle 9 and the above-mentioned lower shaft 6 of feed drive axle are setting abreast down.One end of waling stripe 8 is connected the tip of this horizontal feed axle 9, and the other end is connected the base end part of above-mentioned conveying stand 4.
Can be provided in the above-mentioned lower shaft 6 of side in the Sewing machines base plate 5 with rotating freely, be connected to motor of sewing machine by toothed belt 11 rotatably with speed and rotate going up on the axle 10 of driving.And in the middle part of lower shaft 6, be fixed with horizontal feed eccentric cam 12, this horizontal feed eccentric cam 12 is connected with an end of crank connecting link 13.
The connecting axle 14 that the other end of above-mentioned crank connecting link 13 sets with being parallel to lower shaft 6 links to each other, and the other end of connecting axle 14 is connected the end of oscillating quantity control with bar 16.In addition, an end of connecting rod 15 is connected the pars intermedia of connecting axle 14, and the other end of connecting rod 15 links to each other with an end of take-off lever 17, and the other end of this take-off lever 17 is connected the pars intermedia of above-mentioned trunnion axis 9.
The other end of above-mentioned bar 16 links to each other with connecting pin 18, and this connecting pin 18 links to each other with an end of connecting rod 19.Be equipped with the rotating shaft 20 parallel the interior side of Sewing machines base plate 5 with horizontal feed axle 9.This rotating shaft 20 links to each other with the other end of above-mentioned connecting rod 19.
In addition, the interior side of sewing machine arm 38, dispose regulating shaft 24 abreast with rotating shaft 20, this regulating shaft 24 is connected by 3 connecting rods 21,22,23 and Sewing machines base plate 5 interior rotating shafts 20.Be fixed with edge cam 25 on this regulating shaft 24, the cam surface of this edge cam 25 contacts with the tip of adjustment screw 27, and adjustment screw 27 threadably is screwed in the frame of sewing machine arm 38, and adjustable ground is supported on the frame of sewing machine arm 38.Be fixed with the adjustment disk 26 of the frame foreign side that places sewing machine arm 38 on the adjustment screw 27, this adjustment disk 26 is marked with scale, by operation adjustment disk 26, corresponding with the scale on it, can regulate, by this operation, can make screw 27 advance to push away and act on the edge cam 25, when the regulating shaft 24 that is used for fixing edge cam 25 rotates, above-mentioned connecting rod 23,22,21 of process and rotating shaft 20, connecting rod 19, connecting pin 18 are used in the above-mentioned bar 16 that carries out oscillating quantity control to be changed obliquely, as a result, the oscillating quantity of horizontal feed axle 9 is controlled.
In addition, the cardinal extremity that is applied all the time towards the conveying lever 29 of the power of top by force application spring 28 is fixed on the regulating shaft 24, operates movably towards the below by making this conveying lever 29, and the opposite direction that regulating shaft 24 is transformed into towards throughput direction is rotated.
Above-mentioned lower shaft 6, toothed belt 11, horizontal feed eccentric cam 12, crank connecting link 13, connecting rod 14, connecting rod 15 and take-off lever 17 constitute and the rotation motion of last axle 10 to be changed into oscillating motion and pass to following conveying transmission mechanism 30 as the horizontal feed axle 9 of time feed drive axle.
Above-mentioned oscillating quantity control link 16, connecting pin 18, connecting rod 19,3 connecting rods 21,22,23, feed adjustment axle 24, edge cam 25, adjustment disk 26 and adjustment screw 27, the conveying capacity controlling organization 31 that the oscillating quantity when constituting rotation motion to last axle 10 and changing oscillating motion into is carried out variable control.
In addition, as conveying capacity controlling organization 31, known technology is to adopt slider crank mechanism.
One end of the first pin conveying lever 35 links to each other with above-mentioned horizontal feed axle 9, and the other end of this first pin conveying lever 35 is connected with the lower end of length than the connecting rod 36 of these first pin conveying lever, 35 length.The upper end of connecting rod 36 is connected with the end that length slightly equals the second pin conveying lever 37 of the first pin conveying lever 35.Can rotate freely and link to each other with the other end of the second pin conveying lever 37 with the last axle 10 pin driving shafts 39 that send that are configured in sewing machine arm 38 inside abreast.Movable frame 40 is connected with the point of this pin feed drive axle 39, can move up and down on its point 40a ground is chimeric that shank 41 arranged.In addition, shank 41 is supported on the shank support component 47 that is connected in axle 10 by needle bar crank 45 and needle bar crank connecting rod 46, can reciprocatingly set along the vertical direction.
Support movable frame 40 formations of above-mentioned shank 41 to send pin mechanism 49 swingably.
Being connected first on the above-mentioned horizontal feed axle 9 send shank 35, connecting rod 36 and second to send shank 37 to constitute passing to and send pin transmission mechanism 50 as the shank driving shaft 39 that send the pin driving shaft by above-mentioned the rotatablely moving of axle 10 of going up of carrying transmission mechanism 30 to be transformed into oscillating motion down.
Transport 2 according to such Sewing machines 1, when making action, last axle 10 rotatablely move by under carry transmission mechanism 30 to be transformed into oscillating motion, pass to horizontal feed axle 9, simultaneously, with conveying capacity controlling organization 31 control oscillating quantities, result, make horizontal feed axle 9 with given angle revolution, by waling stripe 8 oscillating motion along the specified rate of the horizontal direction of making direction is imposed on and carry stand 4.In addition, the revolution of horizontal feed axle 9 makes pin feed drive axle 39 with given angle revolution by sending pin transmission mechanism 50, and the oscillating motion along the specified rate of the horizontal direction of making direction is imposed on movable frame 40.
Therefore, transport 2 according in the past Sewing machines 1, support the following conveying tooth 3 make thing to move from the below, simultaneously, carry shank 41 that the synchronous support of tooth 3 makes pin also to make direction and move in the edge with this time with the gyration interlock of last axle 10 and along making direction.In addition, with conveying capacity controlling organization 31 control oscillating quantities, thus, can control changeably the conveying capacity of making pitch.
But, in the transport 2 of above-mentioned Sewing machines 1 in the past, because between Sewing machines base plate 5 and sewing machine arm 38, be equipped with the connecting rod 22 of conveying capacity controlling organization 31 and send the pin swing connecting bar 36 of pin transmission mechanism 50, therefore, at Sewing machines base plate 5 of Sewing machines that for example is used for making school bag and so on and the long Sewing machines of distance between the sewing machine arm 38, at least connecting rod 22 and connecting rod 36 these two parts must be done longer, can not make the parts generalization, this becomes one of the key element of the reduction of the expense of being an impediment to, and this is the place of problem just.In addition, under the situation of the length that changes connecting rod 36, if first length of sending shank 35 is not done correspondingly change along with the length of connecting rod 36, the relation of the scale of conveying capacity and adjustment disk 26 will get muddled, can not get scale with adjustment disk 26 corresponding make pitch.
Further, in the transport 2 of in the past Sewing machines 1, because the major part of conveying capacity controlling organization 31 is configured in the inside of Sewing machines base plate 5, make the Sewing machines that has the small-sized Sewing machines base plate that is called the cylinder base plate can not be contained in conveying capacity controlling organization 31 inside of small-sized Sewing machines base plate, occurred to carry out the problem that conveying capacity is regulated.
Therefore, people wish to obtain and Sewing machines base plate and sewing machine arm between range-independence, can allow more parts generalization, can reduce expense, the relation of scale of conveying capacity and adjustment disk of remaining simultaneously is certain and disposes the Sewing machines transport of the conveying capacity controlling organization that the size with the Sewing machines base plate has nothing to do.
The present invention proposes in view of the above fact, its objective is provide a kind of by make the parts generalization reduce expense, simultaneously to remain the relation of conveying capacity and adjustment disk scale certain and dispose the Sewing machines transport of the conveying capacity controlling organization that the size with the Sewing machines base plate has nothing to do.
In order to finish above-mentioned purpose, the transport of the Sewing machines of the present invention of claim 1 comprises: the axle of going up that drives rotation; Can be around the top feed drive axle of the axle center swing that is parallel to axle; Have the top transfer unit, link, make this top transfer unit with above-mentioned top feed drive axle along the last conveying mechanism of making the direction swing; Transmission mechanism is carried on the top that the above-mentioned rotation motion of going up axle is changed into oscillating motion and pass to above-mentioned top feed drive axle; Can be around being parallel to the above-mentioned following feed drive axle of going up the axle center swing of axle; Have the following conveying tooth that on needle plate, haunts, with the interlock of above-mentioned feed drive axle down, make this time carry tooth along making the following conveying mechanism that direction is swung; Carry above-mentioned top the oscillating motion of transmission mechanism to pass to the above-mentioned following conveying transmission mechanism of feed drive axle down, above-mentioned top is carried transmission mechanism to be provided in above-mentioned and is gone up within the sewing machine arm that is connected.
By adopting this structure, rotatablely moving of last axle carried transmission mechanism to be transformed into oscillating motion by the top that is provided on the sewing machine arm, and passed to top feed drive axle.In addition, oscillating motion make oscillating motion that above-mentioned top carries transmission mechanism by under carry transmission mechanism to pass to down the feed drive axle.Therefore, be transformed into upward the rotatablely moving of axle of oscillating motion, can pass to top feed drive axle and reach feed drive axle down, when being easy to realize implementing to make action, make the following conveying tooth of supporting to make thing from the below and carry shank that the synchronous support of tooth makes pin to move along making send pin or the conveying that direction moves with this time, simultaneously, available sewing machine arm changes the rotation motion of last axle into oscillating motion, thereby can and Sewing machines base plate and sewing machine arm between the prerequisite of range-independence under, make most of universal componentizations, reduced cost.In addition, by the operation conveying lever, the changeable direction of motion of carrying down tooth and shank is easy to make the control of the throughput direction of thing.
The transport of the Sewing machines of the present invention of claim 2, above-mentioned top transfer unit are shank or go up at least one side who carries tooth; Above-mentioned top feed drive axle is to make sending the pin driving shaft or making at least one side who carries the last feed drive axle that tooth swings of shank swing; It is the rotation motion of last axle to be changed into oscillating motion and pass to above-mentioned pin driving shaft or the above-mentioned mechanism of going up at least one side of feed drive axle of sending that transmission mechanism is carried on above-mentioned top.
Like this, when being easy to realize to implement to make action, on make the tooth of supporting in the mode of making thing from direction clamping down of carrying up and down carry action up and down or make and make thing along making the comprehensive conveying action of sending pin action or this both sides that direction moves by being located at pin on the shank along what make that direction moves.
The transport of the Sewing machines of the present invention of claim 3, the above-mentioned transmission mechanism of carrying down has the connecting rod that is connected with last feed drive axle; The connecting portion of this connecting rod and above-mentioned down feed drive axle be furnished be used to regulate under the mechanism of conveying capacity.
Adopt this structure, following conveying capacity governor motion keep being equivalent to sending pin with driving shaft or on to carry the pendulum angle with the oscillating quantity of driving shaft be under the state of given angle, can control down the oscillating quantity of carrying with driving shaft, thereby, the relation of the scale of conveying capacity and adjustment disk can be remained certain.As a result, can make universal componentization, reduce cost, can set and the irrelevant mechanism of the size of Sewing machines base plate.
Fig. 1 is mechanism's line chart of the major part of the Sewing machines that is applicable to Sewing machines transport of the present invention first embodiment that represents in the medelling mode.
Fig. 2 is the decomposition diagram of formation of the second conveying capacity controlling organization of expression Sewing machines transport shown in Figure 1.
Fig. 3 is the front elevation of expression from the second conveying capacity controlling organization shown in Figure 2 of the head unilateral observation of hold-down screw.
Fig. 4 is the horizontal feed eccentric cam action schematic illustration figure nearby of Sewing machines transport shown in Figure 1.
Fig. 5 is the perspective view of major part that expression is applicable to Sewing machines second embodiment of Sewing machines transport of the present invention.
Fig. 6 is the schematic diagram identical with figure of the major part of the Sewing machines that is applicable to Sewing machines transport of the present invention the 3rd embodiment that represents in the medelling mode.
Fig. 7 is the schematic diagram identical with figure of the major part of the Sewing machines that is applicable to Sewing machines transport of the present invention the 4th embodiment that represents in the medelling mode.
Fig. 8 is the schematic diagram identical with figure of the major part of the Sewing machines that is applicable to Sewing machines transport of the present invention the 5th embodiment that represents in the medelling mode.
Fig. 9 is applicable to the formation line chart of the major part of Sewing machines transport in the past with what the medelling mode was represented.
Below, with reference to Fig. 1～Fig. 3 first embodiment is described.
The transport of the Sewing machines of present embodiment be adopt allow the conveying tooth of supporting to make thing from the below and with this conveyings tooth synchronously and support the shank edge of pin to make the structure of the needle feeding apparatus that direction moves.
As shown in Figure 1, the transport 52 of Sewing machines 51 is equipped with conveying stand 54 in the inside of Sewing machines base plate 55, and this conveying stand 54 is provided with down carries tooth 53.Chimeric on the forked portion 54a of this conveying stand 54 have a cam up and down 57 that is fixed on lower shaft 56.In addition, as the horizontal feed axle 59 and the above-mentioned lower shaft 56 of feed drive axle are setting abreast down.Above-mentioned conveying stand 54 is connected with horizontal feed axle 59 by waling stripe 58.
Above-mentioned lower shaft 56 can be provided in the inside of Sewing machines base plate 55 with rotating freely, go up axle 60 for one and can rotate freely the inside that the ground level is provided in sewing machine arm 62, the rotatablely moving of axle 60 of going up that motor of sewing machine drives rotation passed to lower shaft 56 according to 1: 1 rotating ratio by toothed belt 61.
Fig. 1 is right-hand to be the base end side of last axle 60, and Fig. 1 left is the most advanced and sophisticated side of last axle 60.
The installation site of more toothed belt 61 be most advanced and sophisticated side on axle 60 base end part be fixed with the eccentric cam 63 that horizontal feed is used, chimeric an end of crank connecting link 64 on this eccentric cam 63, and being attached thereto.The other end of this crank connecting link 64 links to each other with an end of control link 66.
The adjustment disk 71 fixing in the upper end of above-mentioned adjustment screw 72 operationally is provided in foreign side above the sewing machine arm 62.By operation adjustment disk 71, corresponding with the scale on it, can make adjustment screw 72 advance to push away, at this moment, the cam surface displacement of the edge cam 70 that cooperates with the tip of adjustment screw 72 makes 69 rotations of feed adjustment axle.Thus, the inclination of connecting rod 68 changes.As a result, can be the oscillating quantity of the oscillating motion of exporting the horizontal feed amount from eccentric cam 63, it is zero to the form the given maximum forward conveying capacity setting for from conveying capacity.
On feed adjustment axle 69, be connected with conveying lever 74 by connecting rod etc., this conveying lever 74 applies power towards the top all the time by above-mentioned spring 73, from below operation towards Sewing machines foreign side during outstanding conveying lever 74 most advanced and sophisticated, the direction that feed adjustment axle 69 breaks away from towards the cam surface that makes edge cam 70 and the tip of adjustment screw 72 promptly, the direction of opposite with throughput direction (retreating) rotates.
The upper end of take-off lever 65 and above-mentioned control link 66 one are connected on the other end of above-mentioned crank connecting link 64, and the lower end of this take-off lever 65 links to each other with a end as the transmission bar 76 of linking arm.The interior side of sewing machine arm 62, can rotate freely and with the last axle 60 shank driving shafts 77 that are equipped with abreast as top feed drive axle.
One end one of one end of first connecting rod 78 and above-mentioned shank driving shaft 77 is fixed on the other end of above-mentioned transmission bar 76.
In the present embodiment, adopted and transmitted bar 76 and first connecting rod 78 are fixed on the same position of shank driving shaft 77 in the mode of whole linearity the formation of base end part, but, transmitting bar 76 and first connecting rod 78 can select from arbitrary position of shank driving shaft 77 with respect to the installation site of shank driving shaft 77, and transmitting bar 76 can be never for selecting in the unspecified angle of linearity with the angle that first connecting rod 78 constitutes.In addition, it also is feasible transmitting that bar 76 is integral with first connecting rod 78.
Be used to support the cardinal extremity of the movable frame 79 of shank to be connected the point of above-mentioned shank driving shaft 77, the 79a of support sector of movable frame 79 can support the shank 80 as the top transfer unit with moving up and down.Shank 80 is fixed on the shank support component 83 that is connected on the axle 60 by needle bar crank 81, needle bar crank connecting rod 82.
The other end of above-mentioned first connecting rod 78 links to each other with the upper end of second connecting rod 84, and the lower end of this second connecting rod 84 links to each other with actuating arm 85 on being fixed on above-mentioned horizontal feed axle 59.
Above-mentionedly carry down tooth 53, carry stand 54, cam 57 and waling stripe 58 constitute known conveying mechanism 86 down up and down.
The handle of first connecting rod 78, second connecting rod 84 and actuating arm 85 formation present embodiments passes to the conduct following conveying transmission mechanism 87 of the horizontal feed axle 59 of conveying axis down as the oscillating motion of the transmission bar 76 of linking arm.
Replace the formation of present embodiment, following conveying transmission mechanism 87 is not provided with first connecting rod 78, and employing also is the oscillating motion of transmission bar 76 feasible by the structure that second connecting rod 84 and actuating arm 85 pass to horizontal feed axle 59 directly or indirectly.
Above-mentioned control link 66, connecting pin 67, connecting rod 68, feed adjustment axle 69, edge cam 70, adjustment disk 71 and adjustment screw 72, the first conveying capacity controlling organization 88 of the oscillating quantity the when rotation motion of going up axle 60 that is configured for controlling present embodiment changes oscillating motion into.
Support movable frame 79 formations of above-mentioned shank 80 to send pin mechanism 89 swingably.In addition, the first conveying capacity controlling organization 88 and to send the formation of pin mechanism 89 are known in the past formations, it describes omission in detail.
Above-mentioned eccentric cam 63, crank connecting link 64, take-off lever 65 and transmit bar 76 and constitute the rotation motion of last axle 60 is changed into oscillating motion and send pin transmission mechanism 90 by what the transmission bar 76 that is fixed in shank driving shaft 77 passed to shank driving shaft 77 as top conveying transmission mechanism.
The following conveying transmission mechanism 87 of present embodiment with as the connecting portion of the horizontal feed axle 59 of feed drive axle down promptly, second connecting rod 84 is formation shown in Figure 2 with the connecting portion of actuating arm 85.The stage portion of stepped screw 93 (guide part) 93a is fitted among the formed through hole 84a in second connecting rod 84 lower ends.The threaded portion 93b of retaining thread 93 is embedded with double as outside and prevents to damage under the state of the collar 94 of usefulness, passes the lalongate through hole 85a of actuating arm 85, is connected with nut 95 from the most advanced and sophisticated side of the threaded portion 93b that actuating arm 85 stretches out, fixes thus.The above-mentioned collar 94 can be fitted among the slotted hole 85a along its length movably.
As shown in Figure 3, the lower end of second connecting rod 84, under the state that nut 95 unclamps, can move along the length direction (arrow A) of through hole 85a, be easy to carry out the expansion of interval D in axle center of the horizontal feed axle 59 that the base end part of the center, hole of through hole 84a of second connecting rod 84 and actuating arm 85 fixes or the interval adjustment of dwindling thus.That is to say that the arm lengths of actuating arm 85 just can change by simple and small-sized formation.
Above-mentioned through hole 85a, hold-down screw 93, the collar 94 and nut 95 constitute the second conveying capacity controlling organization 96.
The effect of the present embodiment that is made of said structure then, is described.
In the transport 52 of the Sewing machines 51 of present embodiment, as shown in Figure 4, by means of the revolution with the eccentric cam 63 of last axle 60, crank connecting link 64 is along the left and right directions swing of Fig. 4, and control link 66 is that oscillating motion is carried out at the center with the upper end.Thereupon, take- off lever 65,76 swings of transmission bar, under the effect of transmitting bar 76 oscillating motions, the shank driving shaft 77 of fixed delivery bar 76 is done oscillating motion.At this moment oscillating quantity is decided by the inclination of the connecting rod of setting by adjustment disk 71 65.Then, under the oscillating motion of shank driving shaft 77, movable frame 79 is the center with shank driving shaft 77, carries out the oscillating motion of specified rate, and the result can be imposing on shank 80 along the oscillating motion of making the specified rate of direction.
In addition, the first connecting rod 78 that is fixed on the shank driving shaft 77 makes horizontal drive shaft 59 do oscillating motion by second connecting rod 84 and actuating arm 85.Under the oscillating motion of this horizontal drive shaft 59, by waling stripe 58 oscillating motion of specified rate along the horizontal direction of making direction is imposed on and to carry stand 54.
At this moment, operate hold-down screw 93 shown in Figure 2, above-mentioned interval D between the axle center of the center of the formed through hole 84a in second connecting rod 84 lower ends and horizontal drive shaft 59 is regulated, can change oscillating quantity thus along with the horizontal drive shaft 59 of the swing of second connecting rod 84.Thereby, the pendulum angle of movable frame 79 is being remained under the state of given angle, can only adjust the amount of movement of carrying stand 54.
Like this, according to the transport 52 of the Sewing machines 51 of present embodiment, can be easy to realize send the pin action along what make that direction synchronously moves with the following conveying tooth 53 of last axle 60 interlocks and shank 80.And, can easily carry out the variable control of conveying capacity by being provided in the first conveying capacity controlling organization 88 on the sewing machine arm 62.
Further, owing to adopted the first conveying capacity controlling organization 88 with respect to crank connecting link 64 direct-connected structures, thereby, can avoid caused disorders of becoming flexible the scale relation that reaches conveying capacity and adjustment disk 26 such as abrasion, can concern the scale of the amount of sending and adjustment disk 71 all the time remain necessarily by such connecting rod 22,23 connecting portions of the structure in the past (Fig. 9) of connecting rod 22,23 connection conveying capacity controlling organizations 31.
Owing to be provided with the second conveying capacity controlling organization 96, even change the length of second connecting rod 84, also can be at an easy rate remain suitable relation to the relation of the amount of sending and the scale of adjustment disk 71, obtain scale with adjustment disk 71 corresponding make pitch.In addition, because of the 96 simple in structure and miniaturizations of the second conveying capacity controlling organization, so be easy to be provided on the small-sized Sewing machines base plate.
Further, change oscillating motion into owing to can will go up the rotation motion of axle 60 in the inside of sewing machine arm 62, so, only change the length of second connecting rod 84, just can make each parts of the first conveying capacity controlling organization 88 shared in the Sewing machines base plate 55 various Sewing machiness different with the distance of sewing machine arm 62.That is,, be easy to the reduction expense by making the parts generalization of the first conveying capacity controlling organization 88.
In addition, owing to be equipped with the first conveying capacity controlling organization 88,, also can realize the adjusting of conveying capacity even therefore have the Sewing machines of the small-sized Sewing machines base plate that is called so-called cylinder base plate in the inside of sewing machine arm 62.
Moreover, by operation conveying lever 74, the changeable direction of motion of carrying tooth 53 and shank 80 down, thereby be easy to control the throughput direction of making thing.
As indicated above, transport 52 according to the Sewing machines 51 of present embodiment, and the range-independence between Sewing machines base plate 55 and the sewing machine arm 62, can realize a plurality of parts generalizations, be easy to the reduction expense, simultaneously, the pass that can remain the scale of conveying capacity and adjustment disk 71 is certain, and, irrelevant with the size of Sewing machines base plate 55, be easy to set each conveying capacity controlling organization 88,96.
The transport 52A of the Sewing machines 51 of second embodiment shown in Figure 5 has adopted such, the eccentric cam 63 that replaces above-mentioned first embodiment, be configured to triangular cam 98, the crank connecting link 64 that replaces above-mentioned first embodiment, configuration take-off lever 99,99 positions that are connected with triangular cam 98 of this take-off lever make forked.And the forked portion 99a of take-off lever 99 is entrenched on the triangular cam 98.In addition, the top of the forked portion 99a of take-off lever 99 is connected with pin 101, and pin 101 passes the free end that is supported in the forked support connecting rod 100 on the axle 60.The base end part of forked support connecting rod 100 is supported on the sewing machine stand and also is fine.
Other formations are identical with the Sewing machines 51 of above-mentioned first embodiment.
Fig. 6 shows the transport 52B of the Sewing machines 51B of the 3rd embodiment, is applicable to the Sewing machines that has the small-sized Sewing machines base plate that is called the cylinder base plate.
Be equipped with conveying mechanism 86B down in the most advanced and sophisticated side (Fig. 6 left) of small-sized Sewing machines base plate 55B, this time conveying mechanism 86B is by the conveying stand 54B that is provided with down conveying tooth 53, cam 57 and waling stripe 58 etc. are formed up and down.This time conveying mechanism 86B adopts known in the past structure, and it describes omission in detail.
Other formations are identical with the Sewing machines 51 of above-mentioned first embodiment.
According to the transport 52B of the Sewing machines 51B of second embodiment of this formation, can obtain the effect same with the transport 52 of the Sewing machines 51 of above-mentioned first embodiment.
Fig. 7 shows the transport 52C of the Sewing machines 51C of the 4th embodiment, adopts carrying method up and down, and this carrying method up and down makes the tooth of conveying up and down to make thing from the mode support of above-below direction clamping move along making direction.
Be equipped with the following conveying mechanism 86 same at the tip of Sewing machines base plate 55 (left of Fig. 7) with above-mentioned first embodiment, this time conveying mechanism 86 by be provided with down the conveying stand 54 of carrying tooth 53, cam 57 and waling stripe 58 are formed up and down.
In addition, free to rotate and be arranged on the inside of sewing machine arm 62 abreast with last axle 60 as the last conveying axis 110 of top feed drive axle, the point that is fixed on the transmission arm 111 of conveying axis 110 base end parts links to each other with the bottom of Fig. 7 of take-off lever 65.The upper end of second take-off lever 84 that is connected with horizontal feed axle 59 links to each other with the point that transmits arm 111.Point (Fig. 7 left) at last conveying axis 110 is equipped with conveying mechanism 113, and conveying mechanism 113 has from the top and supports to make thing and the mobile conveying tooth 112 as the top transfer unit on this.Should go up conveying mechanism 113 and adopt known in the past structure, it describes omission in detail.
By means of second connecting rod 84 and actuating arm 85, constitute the following conveying transmission mechanism 87C that the oscillating motion as the transmission arm 111 of this embodiment linking arm is passed to horizontal feed axle 59.
Above-mentioned eccentric cam 63, crank connecting link 64, take-off lever 65 and transmission arm 111 constitute as the top of present embodiment carries going up of transmission mechanism to carry transmission mechanism 114.
Other formations are identical with the transport 52 of the Sewing machines 51 of above-mentioned first embodiment.
According to the transport 52C of the Sewing machines 51 of the 4th embodiment that adopts this structure, the rotation by last axle 60 makes control link 66 do oscillating motion by the crank connecting link that is connected with eccentric cam 63.So, the take-off lever 65 that is connected with crank connecting link 64 is accepted the motion that takes place on control link 66 vertical direction in vertical direction, and make and transmit arm 111 and do oscillating motion, the oscillating motion of this transmission arm 111 makes on the fixed delivery arm 111 conveying axis 110 do oscillating motion.At this moment oscillating quantity is identical with above-mentioned first embodiment, by operation adjustment disk 71 (Fig. 1), changes the inclination of connecting rod 65, is regulated thus.In addition, the oscillating motion of last conveying axis 110 by last conveying mechanism 113 along make direction specified rate oscillating motion and with respect to make thing connect from moving up and down of direction impose on the conveying tooth 112.
The second connecting rod 84 that is connected with the point that transmits arm 111 makes horizontal drive shaft 85 do oscillating motion by actuating arm 85, and will impose on the conveying stand of being installed on the horizontal horizontal drive shaft 85 54 along the oscillating motion of the specified rate of the horizontal direction of making direction by waling stripe 58.
At this moment, with above-mentioned same, operate hold-down screw 93 shown in Figure 3, the interval D in the center of the through hole 84a of adjusting second connecting rod 84 and the axle center of horizontal feed axle 59, thus, remain at the pendulum angle under the oscillating quantity of conveying axis on the handle 110 under the state of given angle, can only regulate the amount of movement of carrying stand 54.That is to say, can remain the relation between the scale of conveying capacity and adjustment disk 71 necessarily all the time.
Therefore, the transport 52C of the Sewing machines 51C of present embodiment, can obtain the effect same with the transport 52 of the Sewing machines 51 of above-mentioned first embodiment, and, be easy to realize carrying method up and down, up and down carrying method is made in the action, the following conveying tooth 53 of following conveying mechanism 86 and going up of last conveying mechanism 113 carry tooth 112 with under the interlock that rotatablely moves of axle 60, make and make thing and move to clamp the mode of making thing from above-below direction along making direction.
In addition, the Sewing machines transport 52 of above-mentioned first embodiment and the Sewing machines transport 52C of the 4th embodiment are combined, be easy to realize using the transport of so-called comprehensive carrying method, this comprehensive carrying method makes and clamps the shank 80 of carrying tooth 53,112 up and down and supporting to make pin of making thing from above-below direction and move along making direction.
That is to say, a part that is shown in broken lines as Fig. 7, by adopting such structure, link together with transmission bar 76 transmitting arm 111, transmitting arm 111 is fixed on the bottom of take-off lever 65 on the conveying axis 110, transmitting bar 76 is fixed on the shank driving shaft 77 with last conveying axis 110 substantially parallel settings, be easy to realize using the transport of comprehensive carrying method, this comprehensive carrying method makes and clamps the shank 80 of carrying tooth 53,112 up and down and supporting to make pin of making thing from above-below direction and move along making direction.
Moreover, in the occasion of using comprehensive carrying method, transmit bar 76 for to be fixed to as first linking arm on the shank driving shaft 77 of pin feed drive axle, transmit arm 111 for to be fixed to as second linking arm on the last conveying axis 110 of last feed drive axle.
Further, under the situation that adopts this formation, by means of eccentric cam 63, crank connecting link 64, take-off lever 65, transmission bar 76 and transmission arm 111, carry a pin to carry transmission mechanism on the formation, should go up the rotation motion of carrying a pin to carry transmission mechanism will go up axle 60 and change oscillating motion into, and with this oscillating motion by being fixed to as the transmission bar 76 on the shank driving shaft 77 of top feed drive axle, pass to shank driving shaft 77, by being fixed to, pass to conveying axis 110 simultaneously as the transmission arm 111 on the last conveying axis 110 of last feed drive axle.
The transport of the Sewing machines of the 5th embodiment shown in Fig. 8 is applicable to that solid such as school bag makes the Sewing machines of the distance of the Sewing machines base plate of so-called back typing of being called of usefulness (post) formula Sewing machines and sewing machine arm.
The transport 52D of the Sewing machines 51D of this embodiment, the upper end of Fig. 8 of its second connecting rod 84 directly is connected with transmission bar 76, constitutes the following conveying transmission mechanism 87D that the oscillating motion of transmission bar 76 is passed to horizontal feed axle 59 by second connecting rod 84 and actuating arm 85.
Other formations are identical with the transport 52 of the Sewing machines 51 of above-mentioned first embodiment.
According to this formation, can obtain the effect same with the transport 52 of the Sewing machines 51 of above-mentioned first embodiment, simultaneously, even Sewing machines base plate 55 is longer with the distance of sewing machine arm 62, also can not damage the operability of conveying lever 74, and there is no need to change the length that connects conveying lever 74 and the connecting rod 120 of feed adjustment axle 69, it is just passable only to change second connecting rod 84, compare with the transport 2 of the Sewing machines 1 of two parts of needs exchange pin swing connecting bar 36 that constituted shown in Figure 9 and connecting rod 22 in the past, can make universal componentization, reduced expense, can obtain the effect same with the various embodiments described above.
In addition, the present invention is not limited to the various embodiments described above, can carry out all changes as required.
Transport according to the Sewing machines of the present invention of the claim 1 of above explanation, in the time of being easy to obtain implement to make action, make and support to make the following conveying tooth of thing from the below and carry the synchronous shank of tooth with this time or carry tooth to move along making send pin or the conveying that direction moves, simultaneously, the rotation motion that to go up axle in sewing machine arm changes oscillating motion into, therefore and the range-independence between Sewing machines base plate and the sewing machine arm, can make most of parts generalizations, reduce expense.In addition, by the operation conveying lever, changeablely carry down tooth and shank or go up the direction of motion of carrying tooth, thereby obtain to be easy to control the extraordinary effect of the throughput direction of making thing.
Transport according to the Sewing machines of the present invention of claim 2, can obtain the effect same with claim 1, simultaneously, in the time of being easy to obtain implement to make action, make with what make thing from the mode support of above-below direction clamping and carry tooth along making the carrying method up and down that direction moves up and down, and can also realize making from the above-below direction clamping and make the shank of carrying tooth up and down and being used to support make pin of thing along making the comprehensive carrying method that direction moves.
According to the transport of the Sewing machines of the present invention of claim 3, the pass that can remain the scale of conveying capacity and adjustment disk is certain.Therefore, make universal componentization, reduced expense, simultaneously, can obtain the good result that is equipped with the following conveying capacity controlling organization that has nothing to do with Sewing machines base plate size.
Claims (3)
1, the transport of Sewing machines comprises:
Drive the axle of going up of rotation;
Can be around the top feed drive axle of the axle center swing that is parallel to axle;
Have the top transfer unit, link, make this top transfer unit with described top feed drive axle along the last conveying mechanism of making the direction swing;
Transmission mechanism is carried on the top that the described rotation motion of going up axle is changed into oscillating motion and pass to described top feed drive axle;
Can be around being parallel to the described following feed drive axle of going up the axle center swing of axle;
Have the following conveying tooth that on needle plate, haunts, with the interlock of described feed drive axle down, make this time carry tooth along making the following conveying mechanism that direction is swung;
Carry described top the oscillating motion of transmission mechanism to pass to the described following conveying transmission mechanism of feed drive axle down,
Described top is carried transmission mechanism to be provided in described and is gone up within the sewing machine arm that is connected.
2, the transport of the Sewing machines of putting down in writing according to claim 1 is characterized in that, described top transfer unit is shank or goes up at least one side who carries tooth;
Described top feed drive axle is to make sending the pin driving shaft or making at least one side who carries the last feed drive axle that tooth swings of shank swing;
It is the rotation motion of last axle to be changed into oscillating motion and pass to described pin driving shaft or the described mechanism of going up at least one side of feed drive axle of sending that transmission mechanism is carried on described top.
3, the transport of the Sewing machines of putting down in writing according to claim 1 is characterized in that, the described transmission mechanism of carrying down has the connecting rod that is connected with last feed drive axle;
The connecting portion of this connecting rod and described down feed drive axle be furnished be used to regulate under the mechanism of conveying capacity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP252040/1999 | 1999-09-06 | ||
| JP25204099A JP4272766B2 (en) | 1999-09-06 | 1999-09-06 | Sewing machine feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1287193A CN1287193A (en) | 2001-03-14 |
| CN1125896C true CN1125896C (en) | 2003-10-29 |
Family
ID=17231748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00126952 Expired - Lifetime CN1125896C (en) | 1999-09-06 | 2000-09-06 | Work-feeding means for sewing machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4272766B2 (en) |
| CN (1) | CN1125896C (en) |
| CZ (1) | CZ302236B6 (en) |
| TW (1) | TW565642B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006061348A1 (en) * | 2005-12-27 | 2007-08-23 | Juki Corp., Chofu | Sewing machine, in which sewn article is fed by upper feed branch, pushing branch and transporter, includes horizontal oscillating output transfer arrangement for automatic feed step size regulation |
| JP2010057906A (en) * | 2008-08-04 | 2010-03-18 | Juki Corp | Bottom and top feed sewing machine |
| JP6506071B2 (en) | 2015-03-27 | 2019-04-24 | 蛇の目ミシン工業株式会社 | Sewing machine equipped with an upper feed stop mechanism |
| TWI706063B (en) * | 2015-09-18 | 2020-10-01 | 日商重機股份有限公司 | Sewing machine |
| DE102017216725A1 (en) * | 2017-09-21 | 2019-03-21 | Dürkopp Adler AG | Method for operating a sewing machine and sewing machine for carrying out the method |
| CN111206336B (en) * | 2018-11-21 | 2021-09-14 | 吴江市优力机械有限公司 | Double-needle comprehensive feeding, cutting, overedging and sewing integrated sewing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903619A (en) * | 1984-09-14 | 1990-02-27 | Suzuki Manufacturing, Ltd. | Buttonhole sewing machine |
| JPH0796090A (en) * | 1993-09-30 | 1995-04-11 | Juki Corp | Feed mechanism of sewing machine |
| JP3301863B2 (en) * | 1994-06-09 | 2002-07-15 | ペガサスミシン製造株式会社 | Flat stitch sewing machine with upper feed mechanism |
-
1999
- 1999-09-06 JP JP25204099A patent/JP4272766B2/en not_active Expired - Fee Related
-
2000
- 2000-09-05 CZ CZ20003226A patent/CZ302236B6/en not_active IP Right Cessation
- 2000-09-05 TW TW89118150A patent/TW565642B/en not_active IP Right Cessation
- 2000-09-06 CN CN 00126952 patent/CN1125896C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1287193A (en) | 2001-03-14 |
| JP4272766B2 (en) | 2009-06-03 |
| JP2001070680A (en) | 2001-03-21 |
| CZ302236B6 (en) | 2011-01-05 |
| TW565642B (en) | 2003-12-11 |
| CZ20003226A3 (en) | 2002-01-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20031029 |