CN1266115A - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN1266115A CN1266115A CN99124371A CN99124371A CN1266115A CN 1266115 A CN1266115 A CN 1266115A CN 99124371 A CN99124371 A CN 99124371A CN 99124371 A CN99124371 A CN 99124371A CN 1266115 A CN1266115 A CN 1266115A
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- Prior art keywords
- syringe
- needle
- shuttle
- sewing machines
- shuttle body
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
- D05B1/12—Lock-stitch seams
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
- D05B57/36—Driving-gear for loop takers in lock-stitch sewing machines
- D05B57/38—Shuttle drives
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
- D05B59/04—Devices for changing the bobbin
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
To provide a double needle sewing machine or double head type sewing machine provided with perpendicular shuttles capable of easily loading or exchanging a bobbin for bobbin thread. This sewing machine comprises first and second sewing needles Na and Nb to move up and down with the rotation of an upper shaft 1, first and second shuttle shafts 9 and 11 provided parallel to a lower shaft 5, shuttle units K and K' composed of shuttle attaching stands 10a and 12 having opening parts 10b and 12b fixed at the ends of respective shuttle shafts 9 and 11 for loading a bobbin case or the like into a inner shuttle body and shuttles 10 and 12 attached at the free ends of the relevant shuttle attaching stands, shuttle shaft stand 19 movable along with the lower shaft 5 while supporting an interlock mechanism 17 for transmitting the rotations of shuttle unit K and lower shaft 5 to the first shuttle shaft 9, shuttle shaft stand 20 movable along the lower shaft 5 while supporting an interlock mechanism 18 for transmitting the rotations of shuttle unit K' and lower shaft 5 to the second shuttle shaft 11, and shuttle body pressers 23 and 24 for supporting the shuttle body so as not to rotate it.
Description
The present invention relates to a kind of having can be with the peg or spindle box of peg or spindle or interior dress peg or spindle from pack into the Sewing machines of the new vertical syringe the shuttle body of syringe axle one side.
In the existing Sewing machines that possesses vertical syringe, in that the under thread bobbin of peg or spindle or interior dress under thread bobbin is box-packed when going in the shuttle body, unload slide plate, the vertical direction of direction that the under thread bobbin box of under thread bobbin or interior dress under thread bobbin is faced with respect to the operator from front one side of syringe advances or withdraws from.
In addition, two-needle sewing machine as shown in figure 11, for example, as the spy open flat 6-81481 communique disclosed, be equipped with: two sewing needle Na of lifting along with the rotation of axle 1 on the Sewing machines, Nb, be fixed on along with the first Sewing machines syringe 48 on the first syringe axle 47 that rotates with the rotation of the lower shaft 5 of last axle 1 interlock, the syringe assembly platform 49 that can advance and retreat with respect to head of sewing machine, be fixed on the second Sewing machines syringe 51 on the syringe axle 50 that is rotatably supported on the syringe assembly platform 49, be rotatably supported on the syringe assembly platform 49, simultaneously again with the connecting axle 52 of the second syringe axle, 50 interlocks and the interlinked mechanism 53 that makes connecting axle 52 and lower shaft 5 interlocks, this interlinked mechanism 53 by be fixed on the lower shaft 5 first gear 54 and with these gear 54 engagements be fixed on second gear 55 on the connecting axle 52 when constituting, at two gears 54, in 55, one of them is the spur gear with big facewidth at least.
In addition, existing double head type Sewing machines shown in Figure 12 is the Sewing machines that is used to improve the production efficiency of large-scale sewingss such as bed clothes, quilt cover, woollen blanket, two Sewing machines M8, M9 are configured in and make the upward vertical both sides of direction of transfer of sewn object S of platform T respectively, can make the two ends that spread over the sewn object S that makes on the platform T simultaneously.Be provided with switch cover 56,57 on the platform T making of this double head type Sewing machines, be used under thread bobbin is installed, is substituted into the shuttle body of the vertical separately full rotation syringe of each Sewing machines M8, M9 from front one side of syringe.
As mentioned above, because the peg or spindle box of under thread bobbin or interior dress under thread bobbin is to advance from front one side of syringe along the vertical direction of the direction of facing with the operator or withdraw from, so be difficult to observe fitting operation, make operation task become very difficult, thereby reduced operating efficiency.
In addition, in above-mentioned two-needle sewing machine, set at interval by cooperation Sewing needles Na, Nb, the second Sewing machines syringe 51 and syringe assembly platform 49 are advanced and retreat and the fixed position with respect to head of sewing machine simultaneously, can set the subtend interval of two Sewing machines syringes 48,51.
The installation in general vertical full rotation syringe of under thread bobbin and peg or spindle box generally is front one side from syringe, pinches the bar of handling knob of bottom line box of the under thread bobbin of packing into finger, is pressed into shuttle body and fixes.Therefore when changing bottom line, between head of sewing machine and syringe assembly platform 49, must leave the sufficient distance that the hand that makes the operator can stretch into.
But, two-needle sewing machine generally is to make under the very approaching state of each syringe 48,51, and because two intervals of making needle tracking can not be too big, therefore when changing under thread bobbin, syringe assembly 49 must be retreated into the degree that operation by hand can be changed under thread bobbin, after changing end of operation, original position must be made it to turn back to, therefore a lot of times can be wasted.In addition, can guarantee to carry out manual degree, then can limit and make needle tracking setting at interval if the interval between Sewing machines support and the syringe assembly 49 remained on always.
In addition, as two-needle sewing machine, the general horizontal syringe (spy opens flat 2-52519 number) that peg or spindle is installed easily that adopts.But in horizontal syringe, the irrotational retainer of braking shuttle body is fixed on the below of Sewing machines support, is provided with opener and makes that going up wire loop can extract out through this retainer at an easy rate, and this opener is installed on the eccentric part of syringe axle through connecting rod, guide post.
But, there is following shortcoming in horizontal syringe with above-mentioned opener, promptly, in the Sewing machines operation process, the sound of opener bump shuttle body and because the chatter that the off-centre of syringe axle causes is very big can not run up, and the difference that the sth. made by twisting that cause because of the direction of rotation difference of reaching the standard grade around syringe are gone into method causes that to make needle tracking inhomogeneous, it is bad to make the needle tracking elasticity, and the helical gear cost of using from the following axially vertical syringe axle transferring power of level is high.
In addition, above-mentioned double power head type Sewing machines is owing to each switch cover 56,57 when making operation is in the state that is hidden under the sewn object S, and therefore porosity is difficult when changing peg or spindle.
The purpose of this invention is to provide a kind of two-needle sewing machine with vertical syringe or double head type Sewing machines etc., the peg or spindle box of peg or spindle or interior dress peg or spindle can be installed, be changed to this vertical syringe simply in syringe.
Sewing machines of the present invention, by have the suture needle that moves up and down along with the rotation of last axle, with the axle of last axle interlock rotation, aforementioned front end one side have shuttle body and be installed on the aforementioned axis needle cylindrical unit and in the axle side of aforementioned needle cylindrical unit box-packed go in the aforementioned shuttle body and constituting partly at the Sewing machines that peripheral part forms the needle cylindrical unit of peristome with the peg or spindle of under thread bobbin or interior dress under thread bobbin.
In addition, the peristome of aforementioned needle cylindrical unit is that the peg or spindle box that will under thread bobbin or interior dress under thread bobbin be installed is directed in the shuttle body and constitutes with the shuttle body internal communication.
In addition, a pair of suture needle and needle cylindrical unit are set respectively, aforementioned needle cylindrical unit is that mutual subtend configuration constitutes.Aforementioned a pair of needle cylindrical unit is to dispose side by side with the syringe direction of rotation of shuttle body pressing plate with respect to needle falling point respectively.
Fig. 1 is the stereogram of expression two-needle sewing machine schematic configuration of the present invention.
Fig. 2 is the vertical view of expression two-needle sewing machine major part of the present invention.
Fig. 3 is the stereogram that expression constitutes other interlinked mechanism of two-needle sewing machine of the present invention.
Fig. 4 is the stereogram of the left and right sides of the present invention shuttle body pressing plate.
Fig. 5 is the vertical view of the clamped position of explanation shuttle body pressing plate in shuttle body, and wherein, (1) is the example of prior art, and (2) are situations of the present invention.
Fig. 6 is the approximate three-dimensional map of double head type Sewing machines of the present invention.
Fig. 7 is the stereogram that constitutes the right side Sewing machines of double head type Sewing machines of the present invention.
Fig. 8 is the stereogram that constitutes the left side Sewing machines of double head type Sewing machines of the present invention.
Fig. 9 is the stereogram that constitutes the right side Sewing machines of another kind of double head type Sewing machines of the present invention.
Figure 10 is the stereogram that constitutes the left side Sewing machines of another kind of double head type Sewing machines of the present invention.
Figure 11 is the stereogram of the two-needle sewing machine of prior art.
Figure 12 is the approximate three-dimensional map of the double head type Sewing machines of prior art.
Figure 13 is the front view that expression is installed in the shuttle body structure of the needle cylindrical unit on the Sewing machines of the present invention.
Figure 14 is mounted in the shuttle body in the Sewing machines of the present invention and the stereogram of peg or spindle box.
Figure 15 is in order to the box-packed key diagram that unloads of shuttle body of the present invention and peg or spindle to be described.
Figure 16 is the key diagram of bottom line operation when being installed to peg or spindle of the present invention in the shuttle body.
Figure 17 has adopted the device broken section front view that is used for peg or spindle box of the present invention is installed to the accessory on the shuttle body.
Referring now to Fig. 1, Fig. 2, Fig. 4, Fig. 5 Sewing machines first embodiment of the present invention is described.The Sewing machines of first embodiment is the Sewing machines with a plurality of suture needles, here, is that example describes with the two-needle sewing machine.
This two-needle sewing machine has the first suture needle Na and the second suture needle Nb of the rotary integral lifting of following axle 1.
Na is equipped with accordingly with this first suture needle: the first syringe axle 9 that is parallel to lower shaft 5 settings of rotating with last axle 1 interlock, the rotation of lower shaft 5 is passed to first interlinked mechanism 17 of the first syringe axle 9, be fixed on the first needle cylindrical unit K on the first syringe axle 9, by have the peg or spindle box that is used under thread bobbin or interior dress under thread bobbin be installed to shuttle body peristome 10b syringe erecting bed 10a and be installed in the first needle cylindrical unit K that the syringe 10 on the free end of syringe erecting bed 10a constitutes, support the first needle cylindrical unit K and interlinked mechanism 17, and the syringe pillow block 19 that can move along lower shaft 5, and the shuttle body pressing plate 23 that non-rotatably supports shuttle body.
In addition, be equipped with accordingly with the second suture needle Nb: the second syringe axle 11 that is parallel to lower shaft 5 settings of rotating with last axle 1 interlock, the rotation of lower shaft 5 is passed to second interlinked mechanism 18 of the second syringe axle 11, by have the peg or spindle box that is used under thread bobbin or interior dress under thread bobbin be installed to shuttle body peristome 12b syringe erecting bed 12a and be installed in the second needle cylindrical unit K ' that the syringe 12 on the free end of syringe erecting bed 12a constitutes, support the second needle cylindrical unit K ' and interlinked mechanism 18, and the syringe pillow block 20 that can move along lower shaft 5, and the shuttle body pressing plate 24 that non-rotatably supports shuttle body.
The opening that aforementioned peristome 10b, 12b can radially connect the peg or spindle box of under thread bobbin or interior dress under thread bobbin for the peripheral part at each needle cylindrical unit K, K '.In addition, needle cylindrical unit K, K ' are cylindric, are formed with the peg or spindle box that can make the under thread bobbin that inserts from peristome 10b, 12b or interior dress under thread bobbin at the axial intercommunicating pore 10c of shuttle body one side shifting.
In addition, aforementioned first syringe 10 and second syringe 12 also can form one with the aforementioned first syringe erecting bed 10a and the second erecting bed 12a respectively.Be respectively the positive rotation syringe of rotation in the counterclockwise direction and the contrary rotation syringe that is rotated in a clockwise direction when in addition, first syringe 10, second syringe 12 are from positive unilateral observation.
The first suture needle Na, the second suture needle Nb are fixed on the pin folder 4 that is fixed in shank 3 bottoms.The lifting along with the rotation of last axle 1 of this shank 3, its elevating mechanism is known mechanism.
Be fixed with drive pulley 2 on the end by axle 1 on constituting at the clava of free rotary ground supporting in sewing machine arm M1, not shown sewing machine electromotor is connected on this drive pulley 2 via vee-belt.In addition, on the other end of last axle 1, be provided with known needle bar drive devices such as abridged counterweight among the figure, needle bar crank bar, shank abut.The elevating movement of shank 3 by sewing machine electromotor via vee-belt, belt pulley 2, go up axle 1, needle bar drive device and transmit.In addition, the change at the interval between the first suture needle Na and the second suture needle Nb is to be undertaken by change the pin folder 4 of fixing each suture needle Na, Nb according to required interval.
On an end of the lower shaft 5 on the Sewing machines fuselage M2, be fixed with belt pulley 6 at free rotary ground supporting, at this belt pulley and be fixed between the belt pulley 7 of axle on 1 and hang with synchronous cog belt 8.
The first syringe axle 9 rotatably horizontal supporting on the syringe pillow block 19 of Sewing machines fuselage M2 bottom.Be fixed with the first needle cylindrical unit K that first syringe 10 is housed on the one end, gear 13 is fixed on its other end by bolt 13a.
The second syringe axle 11 rotatable and with the first syringe axle 9 on the same axis horizontal supporting on the syringe pillow block 20 of Sewing machines support M2 bottom.On the one end with first syringe, 10 subtends be fixed with the second needle cylindrical unit K ' that second syringe 12 has been installed, on its other end, be fixed with gear 14.
On the bottom surface of Sewing machines support M2, be provided with the first syringe pillow block 19 and the second syringe pillow block 20.These syringe pillow blocks 19,20 are through being formed at elongated hole 19a, the 20a on them respectively and can moving along lower shaft 5 by ladder bolt 19b, 20b, and can fix in the destination of moving.In addition, first interlinked mechanism 17 is bearing on the first syringe pillow block 19, and second interlinked mechanism 18 is bearing on the second syringe pillow block 20.
First interlinked mechanism 17 is by being fixed on the gear 13 on the first syringe axle 9 and being fixed on the pars intermedia of lower shaft 5, constituting with gear 13 meshed gears 15.Similarly, second interlinked mechanism 18 is by being fixed on the gear 14 on the second syringe axle 11 and being fixed on the end with the opposite side in end of the lower shaft 5 that belt pulley 6 is installed, constituting with gear 14 meshed gears 16.In addition, gear 15 can slide with respect to lower shaft 5 vertically with gear 16, also can be respectively by bolt 15b, and 16b fixes, and becomes to be fixed on the state that axle is fastened.In addition, each syringe pillow block 19,20 becomes the shape with free state clamping bindiny mechanism 17,18 separately simultaneously.
Therewith relatively, restriction is set to separately axially movable liner 13b, 14b, 15b, 16b between the syringe pillow block 19 of gear 13,14,15,16 both sides or syringe pillow block 20.Thereby, be that order syringe pillow block 19,20 moves along lower shaft 5, also remain the meshing relation of gear 13 and gear 15, gear 14 and gear 16, because along with moving of aforesaid gears group, the first syringe axle 9 and the first needle cylindrical unit K or the second syringe axle 11 and the second needle cylindrical unit K ' also are moved, so can adjust operation at an easy rate.
In Figure 13 to Figure 15, shuttle body A2 of the present invention and peg or spindle box D are described.
In addition, the same with prior art, bobbin case rotates when making, and shuttle body A2 is not rotated by the effect of the described shuttle body pressing plate in back.
Peg or spindle A2 is as shown in figure 13 in the annular of axis direction opening, is communicated with the cylindrical portion of aforementioned needle cylindrical unit K, K '.In addition, in shuttle body A2, be provided with fixedly spheroid A2a highlightedly to the annulus inboard with free state.Promptly, form the bellmouth A2e that the outside-in diameter diminishes gradually at annulus, the fixedly spheroid A2a that will have and its part to annulus in side-prominent diameter bigger than the minimum diameter of bellmouth A2e is inserted among the bellmouth A2e, fixedly spheroid A2a is by the resilient spheroid pressing plate A2b crimping that is located at the annulus outside, side direction in annulus all the time.
In addition, in shuttle body A2, be provided with the circumferentially outstanding bottom line release board A2c of side direction in annulus, in addition, two steady pin A2d subtends are arranged in the annulus inboard give prominence to.
As Figure 14, shown in Figure 15, be formed with groove D2i on all sidepieces of the second main element D2 of peg or spindle box D with on the corresponding position of fixedly spheroid A2a that is located on the shuttle body A2, the position of leaving this groove along clockwise direction slightly is provided with shallow recess D2il.In addition, be provided with corresponding to the position of the steady pin A2d of shuttle body A2 and point to clockwise inverted L shape groove D2j.
Be inserted into the interior peg or spindle box D of needle cylindrical unit K, K ' when the shuttle body direction is advanced, is pressed into the shuttle body A2 and rotates predetermined angle when making from aforementioned peristome 10b, 12b, the fixedly spheroid A2a of shuttle body A2 enters groove D2i, along with to clockwise rotation, be transformed into recess D2il.Thereby, only otherwise add the above power that goes beyond the limit, just can limit mobile to direction of rotation.In addition, steady pin A2d enters down L shaped groove D2j and advances to direction of rotation.Thereby, restriction peg or spindle box D coming off to axial direction.
When clockwise direction rotated predetermined angle, as shown in figure 16, the bottom line release board A2c of shuttle body A2 entered between line regulating spring D2c and the bottom line grip block D2d, produces the gap between the two at aforementioned peg or spindle box D, discharged the bottom line Y that is held.Meanwhile, because of the restoring force of the crooked thread take-up spring D2a of the tension force of bottom line, bottom line Y is drawn high forcibly, is released from tip one side of bobbin case.
The replacing of bottom line generally be wound on the under thread bobbin at bottom line, under thread bobbin packs into and carries out under the state in the peg or spindle box, but also can carry out under the state that does not have the peg or spindle box of peg or spindle (extracting core after the coiling).
The the same with prior art of this replacing own carried out with hand, but also can adopt following accessory.That is, mounting under thread bobbin or peg or spindle box can be set in the peristome of needle cylindrical unit, near can be above the maneuverable Sewing machines support, move, and the mounting parts that when Sewing machines turns round, can not fly out, can fix.
In addition, also can be arranged on when moving in the needle cylindrical unit peristome, near the peg or spindle box erecting bed that moves, can fix when Sewing machines turns round, can not fly out can be above the Sewing machines support of easy operating, the peg or spindle box remains on this peg or spindle box erecting bed and in the shuttle body of packing into.
Shuttle body pressing plate 23,24 has the structure shown in Fig. 4 (1), (2), is installed in the top of the first syringe pillow block 19 and the top of the second syringe pillow block 20 respectively, and its position can be adjusted.Because shuttle body pressing plate 23 and shuttle body pressing plate 24 have the face symmetrical structure, each several part is corresponding with first syringe 10, second syringe 12 respectively, thereby is that representative describes with shuttle body pressing plate 23.The label of each several part also has corresponding relation.
Shuttle body pressing plate 23 is being equipped with the stop hole 23a that usefulness is installed on the first syringe pillow block 19 on its base portion.With a part that constitutes first syringe 10, be shown in the shuttle body holding section 23b that the fastening groove 30 of the shuttle body 29 among Fig. 5 (2) engages and be positioned at front end.Formed the 23c of surplus portion that avoids colliding connecting gear in its back.The position of adjusting this shuttle body pressing plate 23 makes sewing thread can pass the gap between shuttle body holding section 23b and the fastening groove 30, is fixed then.
But, if adopt in the prior art two vertical full rotating the needle tube subtends are disposed, constitute two-needle sewing machine, the position of shuttle body holding section 23b and the relation between the needle downing position are then shown in Fig. 5 (1).The subtend of each syringe F1, F2 shuttle body 33,34 separately L1 at interval is minimum limit value, suture needle Na, and needle falling hole H1, the H2 when Nb falls is arranged in the syringe axle in the heart with the fastening groove 37,38 of the shuttle body 33,34 that engages shuttle body pressing plate 35,36.And in this state, the peg or spindle box can not enter and withdraw from.
Yet, in the present invention, have the position relation shown in Fig. 5 (2).That is, in order to reduce the subtend width L2 of shuttle body 29,31 as far as possible, stagger near the bobbin case direction of rotation downstream of needle falling hole H1, H2 in the position of fastening groove 30,32.In addition, when subtend when at interval L2 diminishes, the thickness of slab of shuttle body holding section 23b, the 24b attenuate of having to for improving intensity, also can be made one with two shuttle body pressing plates, is engaged on each shuttle body 29,31 with its common shuttle body holding section, supports.
Two-needle sewing machine with said structure when axle 1 and belt pulley 2 rotate simultaneously on sewing machine electromotor drives, utilizes known shank elevating mechanism lifting shank 3, two suture needle Na, Nb and pin to press from both sides 4 one liftings.On the other hand, the rotation of last axle 1 passes to lower shaft 5 through belt pulley 7, synchronous cog belt 8, belt pulley 6.Then, the rotation of this lower shaft 5 passes to gear 13, the first syringe axle 9 from gear 15, similarly, passes to the second syringe axle 11.Utilize this drive transmission mechanism, be installed in each syringe 10,12 on each needle cylindrical unit K, K ' and synchronously rotate to form with the lifting action of suture needle Na, Nb respectively and make needle tracking.
For a change two intervals of making between the needle tracking at first to change the pin folder 4 that is fixed with each suture needle Na, Nb corresponding to the spacing at needed interval, are installed on the shank 3.Secondly, as described below, mobile syringe pillow block 19,20 is set the tip location corresponding to each syringe 10,12 of suture needle Na, Nb location interval.
Under the situation of second syringe 12 of tip location adjust to(for) the second suture needle Nb, unclamp the stationary state that the bolt 16a that is fixed with gear 16 removes lower shaft 5, loosen ladder bolt 20b, along elongated hole 20a, promptly move the second syringe pillow block 20 to Fig. 1 or arrow A shown in Figure 2 or the direction of B along lower shaft 5.
Then, when the tip location of the second suture needle Nb and second syringe 12 reached needed position and concerns, fastening ladder bolt 20b was fixed on the bottom of Sewing machines support M2 with the second syringe pillow block 20, and then fastening bolt 16a is fixed on gear 16 on the lower shaft 5.By moving of this second syringe axle 20, second interlinked mechanism 18, the second syringe axle 11, the second needle cylindrical unit K ' (syringe 12) and shuttle body pressing plate 24 keep its overall relation to move unchangeably with syringe pillow block 20.Thereby shifting function is easy, can carry out at short notice.Adjustment with respect to the tip location of first syringe 10 of the first suture needle Na is identical with it.
In addition, in the present embodiment, all can carry out the position adjustment in the syringe pillow block 19,20 any one, but also can be for example when width be made in change, the invariant position of a suture needle, only change in the Sewing machines of another suture needle, employing will be integrally formed in the structure of the bottom of Sewing machines support M2 corresponding to the syringe pillow block of the suture needle of invariant position.
The installation of under thread bobbin, replacing, i.e. installation in each shuttle body 29,31, to change be to carry out above Sewing machines support M2 shown in Figure 1, is inserted in each shuttle body 29,31 (referring to Fig. 5 (2)) by peristome 10b, the 12b of each syringe erecting bed 10a, 12a.
Usually, under bottom line is wound on state on the under thread bobbin, under thread bobbin, be encased under the state of peg or spindle box and change bottom line, but also can under the state that does not have the peg or spindle box of peg or spindle (extracting peg or spindle after the coiling), change.
The replacing operation is the same with prior art to be carried out by hand, but also can adopt accessory part as shown in figure 17.That is, make axis of guide C2 run through slidably among the through hole S1 that inserts syringe axle S central part along circumferential direction, axis of guide spring C3 is wound on the periphery of axis of guide C2 between syringe axle S and packing ring.
Make the front end of axis of guide C2 be projected into the opening 10b of syringe erecting bed 10a, 12a, the inside of 12b, fixed installation body C1 is provided with spline shaft C2a and spheroid C2b on the cardinal extremity of axis of guide C2.When forming on fixing body C1 when peg or spindle box D is inserted into syringe installation stage body 10a, 12a above peristome 10b, 12b, with the jog that peg or spindle box D engages on direction of rotation, when fixing body C1 described later rotated, peg or spindle box D rotated.
In cardinal extremity one side of this spline shaft C2a, connect the dwang C19 of rotation by cylinder C18.On this dwang C19, in its leading section formative gear type hole, axis of guide C2 is installed among the C19 of this gear type hole with the state that connects.Sliding bar C21 front end is provided with double-fork part C21a, and spheroid C2b is installed on this two fork C21a in the mode of engaging, by cylinder C20 the sliding bar C21 that rotates is connected on the spheroid C2b.
After being inserted into peg or spindle box D among fixing body 10a, the 12a, the operator is by operations such as switches, when driving cylinder C20 makes sliding bar C21 (Figure 17) rotation counterclockwise, in the way that the syringe direction moves, spline shaft C2a becomes the state that engages with the gear shape hole C19a of dwang C19 at axis of guide C2.When axis of guide C2 moved to terminal point, cylinder C18 drove, and dwang C19 rotates.Then, remain on after peg or spindle box D on the erecting bed main body C0 inserts in the shuttle body, when from cylinder C20, deflating, make axis of guide C2 return to original position by axis of guide spring C3.Begin to reset from guide roller C2, by making cylinder C18 to the Ha directive effect, the rotation posture of fixing body C1 returns to original state.Spline shaft C2a turns back in the way of position of readiness at erecting bed main body C1, deviates from from the gear shape hole C19a of dwang C19.
In addition, as the modified example of above-mentioned accessory part, near the mounting assembly that mounting under thread bobbin or peg or spindle box can be set in the needle cylindrical unit peristome, move, when Sewing machines turns round, can not fly out and can fix can be above the Sewing machines support of easy operating.
In addition, also can be arranged on when can in the needle cylindrical unit peristome, move, near the peg or spindle erecting bed that move again can be above the Sewing machines support of easy operating, can not fly out and can fix when Sewing machines turns round remains on the peg or spindle box on this peg or spindle box erecting bed and is installed in the shuttle body.
Fig. 3 represents the alternative mechanism of first interlinked mechanism 17 and second interlinked mechanism 18.In addition, in the figure, the assembly with said function is given same label, and omits the explanation (following identical) to them.
First interlinked mechanism 17 and second interlinked mechanism 18 shown in Figure 1 adopt spur gear respectively, two first interlinked mechanisms 17 shown in Figure 3 ' in, then adopt right-hand screw helical gear 25 and left-hand screw helical gear 27, the second interlinked mechanisms 18 ' in, adopt left-hand screw helical gear 26 and right-hand screw helical gear 28.Like this, when adopting helical gear, compare, can run up, boost productivity with adopting spur gear.And, can significantly reduce the noise that produces by interlinked mechanism.
More than explanation is the situation of gear that adopts in interlinked mechanism, but also can adopt combination replacement gear structures such as belt pulley and synchronous toothed belt.
Below with reference to Fig. 6 to Figure 10, Sewing machines second embodiment of the present invention is described.The Sewing machines of second embodiment is that a kind of two Sewing machines M3, M4 are configured in the double head type Sewing machines of making the both sides that the direction of transfer with sewn object S on the platform directly advances respectively.
Here employed each Sewing machines M3 (M3 '), M4 (M4 ') are shown in Fig. 7 (Fig. 9), Fig. 8 (Figure 10) respectively, they separately in the Sewing machines of structure and first embodiment of syringe periphery around the syringe on right side, identical around the syringe in left side, so the parts that structure is identical are given identical label, here, for fear of miscellaneous repetition, the difference between them is only described.
Sewing machines M3 shown in Figure 7 and Sewing machines M4 shown in Figure 8 at first are described.On the shank separately 39 of Sewing machines M3, M4, be fixed with a suture needle Na, a suture needle Nb respectively.Around the right side syringe in the Sewing machines of the structure of syringe periphery and first embodiment, almost have nothing different around the syringe of left side.But owing to positive rotation syringe 10, contrary rotation syringe 12 there is no need to move, so the syringe axle 19,20 in the Sewing machines of first embodiment no longer exists.For any one Sewing machines M3, M4, it is crucial having on syringe erecting bed 10a, 12a peristome 10b, the 12b that under thread bobbin uses is installed.
The installation that can slide to base portion one side of arm is set in the position of outwards throwing off from the sewn object S that is under the state that places on each Sewing machines support M5, M6, changes the slide plate 40,41 that peg or spindle is used.When opening these slide plates 40,41, can observe peristome 10b, the 12b of syringe erecting bed 10a, 12a from the top, even big sewn object S also can must not carry out the replacing operation of under thread bobbin movably, easily.
Thereby, also need not change the position of making needle tracking, can alleviate operator's burden significantly, enhance productivity.
Below Sewing machines M3 ' shown in Figure 9 and Sewing machines M4 ' shown in Figure 10 are described.Equally, here, omission and Fig. 7, the identical part of Sewing machines M3, M4 shown in Figure 8 are only described its difference.
On an end of lower shaft 5, be fixed with bevel gear 42, on last axle 1, be fixed with bevel gear 43.And be set to keep bevel gear 42 and bevel gear 43 to have the vertical shaft 44 of continuous action relation, last axle 1 is 1: 2 with the speed ratio of lower shaft 5, respectively at the upper fixed of vertical shaft 44 and bevel gear 43 meshing bevel gears 45, the fixing bevel gear 46 that meshes with bevel gear 42 thereunder.
And, for the needle cylindrical unit 12a that makes Sewing machines M4 for counter-rotating, that is, become the counter-rotating Sewing machines for making Sewing machines M4 ', the subtend one side ground of the bevel gear 43 of bevel gear 43 ' be positioned at and Sewing machines M3 ' and vertical shaft 44 is fixed on spool 1.That is, bevel gear 43 ' with bevel gear 43 are same parts, just changed its installation site.The structure of above-mentioned parts is the same with existing double head type Sewing machines shown in Figure 12, and price is cheap in general.
Sewing machines of the present invention described above owing to adopted has and is used for the box-packed syringe erecting bed of going into the peristome of shuttle body of the peg or spindle of under thread bobbin or interior dress under thread bobbin, so the operator can change peg or spindle or peg or spindle box simply from the front side of Sewing machines support top or hand.In addition, in the double head type Sewing machines that two intervals of making needle tracking are set narrowly two-needle sewing machine or be covered with the sewn object state all the time above syringe, installation on the Sewing machines support at short notice simply always, change peg or spindle or the peg or spindle box of peg or spindle is housed.And, in two-needle sewing machine, to compare with the Sewing machines of the horizontal syringe that has prior art, it can run up, and does not produce noise, can not produce to make the inhomogeneous of needle tracking, and the elasticity of line is good, and needn't adopt expensive helical gear.
Claims (5)
1. Sewing machines, possess: the suture needle that moves up and down along with the rotation of last axle, axle with the rotation of last axle interlock, have shuttle body and be installed in needle cylindrical unit on the aforementioned axis in aforementioned front, form the needle cylindrical unit of peristome at peripheral part, this peristome is used in the aforementioned axis side part of aforementioned needle cylindrical unit under thread bobbin or peg or spindle box that under thread bobbin is housed being installed to aforementioned shuttle body.
2. Sewing machines as claimed in claim 1, the peristome of aforementioned needle cylindrical unit and shuttle body internal communication guide in shuttle body so that the peg or spindle box of under thread bobbin or interior dress under thread bobbin will be installed.
3. Sewing machines as claimed in claim 2, aforementioned a pair of needle cylindrical unit have a needle cylindrical unit be rotated in the forward, another needle cylindrical unit is the structure of reverse rotation.
4. Sewing machines as claimed in claim 1 is provided with a pair of suture needle, needle cylindrical unit respectively, and aforementioned needle cylindrical unit has the structure of mutual subtend configuration.
5. Sewing machines as claimed in claim 4, aforementioned needle cylindrical unit are to dispose side by side with the syringe direction of rotation of shuttle body pressing plate with respect to needle falling point.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33248298A JP3899199B2 (en) | 1998-11-24 | 1998-11-24 | sewing machine |
| JP332482/1998 | 1998-11-24 | ||
| JP35832698A JP3899201B2 (en) | 1998-12-17 | 1998-12-17 | Sewing machine |
| JP358326/1998 | 1998-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1266115A true CN1266115A (en) | 2000-09-13 |
Family
ID=26574199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99124371A Pending CN1266115A (en) | 1998-11-24 | 1999-11-24 | Sewing machine |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR20000035615A (en) |
| CN (1) | CN1266115A (en) |
| DE (1) | DE19956396A1 (en) |
| TW (1) | TW517115B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820948A (en) * | 2012-11-16 | 2014-05-28 | 翔大机械股份有限公司 | Double-rail and double-bearing supported rocker arm mechanism of shoemaking insole stitching machine |
| CN110846822A (en) * | 2019-10-28 | 2020-02-28 | 林泽贤 | Shuttle assembly of sewing machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4471831B2 (en) * | 2004-12-28 | 2010-06-02 | Ｊｕｋｉ株式会社 | Sewing machine opener mechanism |
| US11174579B2 (en) * | 2017-01-20 | 2021-11-16 | Honda Motor Co., Ltd. | Single chain stitch sewing device |
| CN111648048A (en) * | 2020-06-19 | 2020-09-11 | 台州市泓列缝纫机有限公司 | Chain type stitch mechanism of synchronous lockstitch sewing machine and synchronous lockstitch sewing machine with same |
-
1999
- 1999-11-23 KR KR1019990052016A patent/KR20000035615A/en not_active Application Discontinuation
- 1999-11-23 TW TW088120455A patent/TW517115B/en active
- 1999-11-24 DE DE19956396A patent/DE19956396A1/en not_active Withdrawn
- 1999-11-24 CN CN99124371A patent/CN1266115A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820948A (en) * | 2012-11-16 | 2014-05-28 | 翔大机械股份有限公司 | Double-rail and double-bearing supported rocker arm mechanism of shoemaking insole stitching machine |
| CN110846822A (en) * | 2019-10-28 | 2020-02-28 | 林泽贤 | Shuttle assembly of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000035615A (en) | 2000-06-26 |
| TW517115B (en) | 2003-01-11 |
| DE19956396A1 (en) | 2000-06-15 |
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