CN101824709A - Double-chain stitch sewing machine having box-shaped bed - Google Patents
Double-chain stitch sewing machine having box-shaped bed Download PDFInfo
- Publication number
- CN101824709A CN101824709A CN201010118575A CN201010118575A CN101824709A CN 101824709 A CN101824709 A CN 101824709A CN 201010118575 A CN201010118575 A CN 201010118575A CN 201010118575 A CN201010118575 A CN 201010118575A CN 101824709 A CN101824709 A CN 101824709A
- Authority
- CN
- China
- Prior art keywords
- sewing machine
- needle plate
- box
- presser feet
- machine table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 144
- 230000005540 biological transmission Effects 0.000 claims abstract description 66
- 239000004744 fabric Substances 0.000 claims abstract description 64
- 230000033001 locomotion Effects 0.000 claims description 18
- 244000145845 chattering Species 0.000 claims description 16
- 238000009434 installation Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000012797 qualification Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010417 needlework Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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
- D05B1/10—Double chain-stitch seams
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
- D05B29/08—Presser feet comprising relatively-movable parts
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
- D05B37/04—Cutting devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/02—Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/30—Details
Abstract
Of the present invention double-chain stitch sewing machine having box-shaped bed, have the box-shaped sewing machine table, and drop on the needle plate on the sewing machine table and push down the presser feet of tailoring cloth.Be provided with knife system in the presser feet, tailoring cloth is supported on the smooth upper surface of sewing machine table with being stabilized, cuts off its edge by knife system, sews up and be piled up with certain width.The upper surface of sewing machine table is lower than the upper surface of needle plate in the one or both sides of the width of needle plate, guarantees and reaches slit between the protuberance of knife system in the presser feet outside.The operator can utilize this slit to assist the transmission of tailoring cloth with hand near presser feet, thereby can implement the joint close of the tailoring cloth of bulk well.
Description
Technical field
The present invention relates to a kind of double chainstitch (Er Chong Ring Sew い with box-shaped sewing machine table) Sewing machines.
Background technology
Double-chain stitch sewing machine having box-shaped bed is a kind of form of industrial sewing machines.This Sewing machines has the box-shaped sewing machine table, and the box-shaped sewing machine table has smooth upper surface in the both sides of needle plate.The smooth upper surface of sewing machine table supports tailoring cloth in the both sides of needle plate, thereby alleviated the work that the operator buttresses the cloth in making.Therefore, the double-chain stitch sewing machine having box-shaped bed tailoring cloth of making bulk that is applicable to very much.A part is double-chain stitch sewing machine having box-shaped bed, and outer more distolateral than needle plate, sewing machine table is the tubular with flat upper surfaces.Cartridge type was double-chain stitch sewing machine having box-shaped bed during this Sewing machines was called.
Another kind of form as industrial sewing machines has Wrist-bent lockstitch sewing machine.This Sewing machines has the platform of cylinder-shaped sewing machine in a narrow margin that extends to a direction in the bottom of sewing machine stand, have on the top of sewing machine stand to the sewing machine arm that extends with the sewing machine table different directions.Wrist-bent lockstitch sewing machine for example is used for the joint close at the following position of crotch portion of underpants (Brief), pants (Shorts) etc.This joint close, the edge of two clothes will sewing up is overlapping up and down with predetermined width, delivers to the needle plate on the sewing machine table and drops between the presser feet on this needle plate and carry out.
The Wrist-bent lockstitch sewing machine of being put down in writing in the special fair 7-57272 communique of Japan (having authorized Japanese patent laid-open publication gazette No.7-57272 (1995)) has the special presser feet that is provided with knife system.This presser feet has presser feet body and 2 paws.The presser feet body descends on needle plate, and clamping tailoring cloth between this needle plate.2 paws extend parallel to each other in the place ahead of presser feet body.Knife system comprises the dead knife (Fixed Knife) that is installed in the paw on one side but and is installed in moving knife (Movable Knife) in the another side paw.But dead knife and moving knife have cutting blade in the end of giving prominence between 2 paws.Cutting blade is before mutually opposed at needle downing position (position that pin descends).
But moving knife connects with the dead knife wiping by carrying out back and forth movement from the transmission of sewing machine arm inside.But moving knife is installed as the outside that a part is projected into paw, and this ledge is connected with transmission mechanism from sewing machine arm inside.
The edge of the tailoring cloth that the operator will sew up is being delivered under the state that stands on the needle plate between 2 paws altogether.But the wiping of the edge of tailoring cloth arrival dead knife and moving knife connects the position and is trimmed.The cloth edge that the presser feet body will trim is overlapping being sent on the needle downing position up and down.Use the operator of this Sewing machines, do not need handwork to carry out the adjustment of overlapping width, can easily carry out joint close with roughly certain stitching width.
This joint close is also implemented in other forms of Sewing machines.In double-chain stitch sewing machine having box-shaped bed, as previously mentioned, can on sewing machine table, stably support tailoring cloth, therefore in the past generally carry out the adjustment of overlapping width in the place ahead of needle plate, implement joint close by operator's handwork.So have qualification difference, the differentiated problem of completion status because of the operator.
This problem can solve by the presser feet that the band knife system that possesses in the Wrist-bent lockstitch sewing machine is installed.But double-chain stitch sewing machine having box-shaped bed, as previously mentioned, for supporting the tailoring cloth of bulk, sewing machine table has the flat upper surfaces in the expansion of the both sides of needle plate.And the presser feet of the band knife system that possesses in the Wrist-bent lockstitch sewing machine as previously mentioned, but has the moving knife that stretches out in a side of presser feet, and this extension is connected with transmission mechanism.Therefore, this presser feet is being applied to when double-chain stitch sewing machine having box-shaped bed, but the transmission mechanism of moving knife moves at the upper surface place near the box-shaped board.
And make operator in the operation, and in general, near the presser feet both sides, live tailoring cloth with hand, towards the direction of transfer pushing, come to assist the transmission of tailoring cloth thus.This transmission is auxiliary, in the particular importance in the operation of making of double-chain stitch sewing machine having box-shaped bed handled bulk tailoring cloth.
Therefore, when in double-chain stitch sewing machine having box-shaped bed, adopting the presser feet of band knife system, a side of presser feet, but the transmission mechanism of moving knife moves, the opposite side of presser feet, and the part of dead knife is stretched out, therefore it is auxiliary to be difficult to implement aforesaid transmission, might bring obstacle to making operation.
On the other hand, the operator also can use Wrist-bent lockstitch sewing machine to carry out the joint close of bulk tailoring cloth.But Wrist-bent lockstitch sewing machine has narrow footpath cylinder-shaped sewing machine platform, and when the joint close of the tailoring cloth that carries out bulk, sewing machine table is not enough to the support of tailoring cloth, is difficult to implement the good operation of making.
Summary of the invention
The present invention makes in view of above-mentioned condition, purpose provides a kind of double-chain stitch sewing machine having box-shaped bed, the presser feet that possesses the knife system that has the edge that trims tailoring cloth, thereby no matter how operator's qualification can both implement joint close in good condition, and can not bring obstacle to the transmission less important work that presser feet both sides operator is implemented.
Of the present invention double-chain stitch sewing machine having box-shaped bed, comprise: have and be used for carrying the box-shaped sewing machine table of the smooth upper surface of tailoring cloth at width two sides of needle plate, shank and the depression bar being supported by the sewing machine arm of this sewing machine table top and hang down, be installed in the pin and the presser feet of the lower end of this shank and depression bar respectively, and the connecting gear and the looper that are arranged on the described sewing machine table inside of described needle plate below, described presser feet descends with described depression bar, be pressed onto on the described needle plate, applied the tailoring cloth of transmission of the long side direction of described needle plate by described connecting gear, by the described pin that moves up and down jointly with described shank, and to be the center with the fulcrum parallel with described direction of transfer make along the described looper of the lower surface swing of described needle plate, wherein, described presser feet also has knife system, but this knife system has along the upper surface of the described needle plate moving knife at the direction back and forth movement that intersects with described direction of transfer, but and wipes the dead knife that connects with this moving knife.
Among the present invention, on needle plate, push down in the presser feet of tailoring cloth, but be provided with knife system, therefore can implement the joint close of bulk tailoring cloth, and can not depend on operator's qualification with good quality with dead knife and moving knife.
And, of the present invention double-chain stitch sewing machine having box-shaped bed, it is characterized in that the upper surface of described sewing machine table constitutes the upper surface that is lower than this needle plate in the one or both sides of the width of described needle plate.
Among the present invention, the upper surface of box-shaped board is lower than the upper surface of needle plate in the one or both sides of needle plate, but guarantees the upper surface of box-shaped board and reach slit between the extension of moving knife in the presser feet outside.The operator can utilize this slit to assist the transmission of tailoring cloth with hand near presser feet, thereby can implement the joint close of the tailoring cloth of bulk well.
And, of the present invention double-chain stitch sewing machine having box-shaped bed, it is characterized in that, the upper surface of described sewing machine table and the upper surface of described needle plate, mutually continuous in the both sides of described needle plate by the end difference that the interference of avoiding between the wobble area with described looper is provided with.
Among the present invention, the upper surface of the upper surface of needle plate and box-shaped board is by end difference and continuous smoothly.End difference is avoided the wobble area of looper and is provided with, thereby can not hinder the action of the looper that carries out box-shaped board inside, can stably support the tailoring cloth of bulk, carries out joint close.
And, of the present invention double-chain stitch sewing machine having box-shaped bed, it is characterized in that having: be arranged on the axle of chattering of described sewing machine arm inside, but and with this chatter the axle rotation repeatedly pass to described moving knife, but make this moving knife carry out the transmission mechanism of back and forth movement.
Among the present invention, but the rotation repeatedly of the axle of chattering of sewing machine arm inside passes to moving knife by transmission mechanism.But the moving knife that is arranged in the presser feet can carry out back and forth movement reliably, and the edge of tailoring cloth is trimmed, and implements good joint close.
And of the present invention double-chain stitch sewing machine having box-shaped bed, it is characterized in that described transmission mechanism has: transmission cylinder connects the bottom of described sewing machine arm and is supported the embedded support bush that maintains the bottom of supporting described depression bar on above-below direction; And transmission connection piece, the rotation repeatedly of transmitting the described axle of chattering to the top of the described transmission cylinder that is positioned at described sewing machine arm inside in the bottom of the described transmission cylinder of the outside that reaches described sewing machine arm, but is provided with the mount pad of described moving knife.
Among the present invention, but with the axle of chattering rotate the transmission mechanism pass to moving knife repeatedly, have the transmission cylinder of the holding components that is also used as depression bar, but can realize from the transmission of the moving knife of the axial sewing machine arm of chattering of sewing machine arm inside outside by simple structure.
Read the following detailed description of narrating by the contrast accompanying drawing, will understand purpose of the present invention and character of innovation more.
Description of drawings
Fig. 1 is the stereogram of expression double-chain stitch sewing machine having box-shaped bed outward appearance of the present invention.
Fig. 2 is the key diagram of the installment state of needle plate.
Fig. 3 is near the front cross-sectional view of the sewing machine table in the installation site of needle plate.
But Fig. 4 is the stereogram of the driving mechanism of moving knife.
Fig. 5 is the stereogram of the outward appearance of expression double-chain stitch sewing machine having box-shaped bed another embodiment of the present invention.
The specific embodiment
The contrast accompanying drawing is elaborated to embodiments of the present invention below.Fig. 1 is the stereogram of expression double-chain stitch sewing machine having box-shaped bed outward appearance of the present invention." upper and lower and left and right " of using in the following description is " upper and lower and left and right " among Fig. 1.In addition, in the following description, be called " preceding " outside the paper with Fig. 1, the paper inboard of Fig. 1 is called " back ".
Shown in Figure 1 is double-chain stitch sewing machine having box-shaped bed, has sewing machine table 1, socle 2 and sewing machine arm 3.Sewing machine table 1 is a box-shaped, has smooth upper surface 20.Socle 2 generally perpendicularly is erected at the right-hand end of sewing machine table 1.Sewing machine arm 3 extends left from the upper end of socle 2, and is parallel with the upper surface 20 of sewing machine table 1.The terminal part support of sewing machine arm 3 has shank 30 and depression bar 31.
The internal support of sewing machine arm 3 has the shank 30 that can move up and down.Shank 30 moves up and down along with the action of the needle bar drive device that is arranged on sewing machine arm 3 inside (diagram is omitted).Shank 30 stretches out towards the below of sewing machine arm 3.Shank 30 stretch out the end, by needle lock 40 many pins 4,4 are installed ... Many pins 4,4 ... along with moving up and down and rise and fall of shank 30.
In the upper surface 20 of sewing machine table 1, with pin 4,4 ... and the down position of presser feet 5 is equipped with needle plate 10 accordingly.Fig. 2 is the key diagram of the installment state of needle plate 10.Needle plate 10 as shown in Figure 2, for rectangular flat long on fore-and-aft direction, by a plurality of (only illustrating 2) stop screw 10a, 10a ... be removably mounted on the erecting bed 11, erecting bed 11 is fixed on the sewing machine table 1.In the leading edge of needle plate 10, be formed with the notch part 12 of rectangle in the centre of width (left and right directions).
In the needle plate erecting bed 11, on the position that the notch part 12 with needle plate 10 is complementary, be provided with recess 12a.Recess 12a is wideer than breach 12, with the guiding installation sheet 14 block mutually with.The bottom surface of recess 12a is provided with screw, by will being pressed into the bottom surface of needle plate 10 from bottom to top with the screw 15 that this screw is screwed, and will guide installation sheet 14 to be fixed on the below of notch part 12.Guiding installation sheet 14 has tandem 2 screws.By the stop screw 17,17 that screws togather respectively with described screw, cloth guiding 16 is fixed on the guiding installation sheet 14.Cloth guiding 16 is flat parts, is configured to extend back from the fixed position of stop screw 17,17, vertically erects with respect to this upper surface in the width centre of the upper surface of needle plate 10.
Be formed with in the needle plate 10 and send perforation 13,13 ...Send perforation 13,13 ... be that long limit is positioned at the narrow rectangular aperture on the fore-and-aft direction, separate, respectively be provided with 2 in the left and right sides of needle plate 10.Send perforation 13,13 ... be set to be used for making that the tooth that send at sewing machine table 1 internal motion stretches out.Send tooth to have known structure, promptly pass through the action of the connecting gear of sewing machine table 1 inside, the Long Circle motion that seesaws and move up and down and combine.Send tooth when moving upward, to send perforation 13,13 through each ... move backward the top that reaches needle plate 10, moves downward afterwards to move forward, and so carries out repeating motion.By this action, the intermittence that the tailoring cloth on needle plate 10 (diagram is omitted) applies backward transmits.
Presser feet 5 and pin 4,4 have been demonstrated among Fig. 2 in the lump ...Presser feet 5 as shown in the figure, overlaps on the needle plate 10 when descending because of moving downward of depression bar 31, and clamps tailoring cloth between this needle plate 10.Presser feet 5 has presser feet body 50 and 2 paws 51,52 of the lower end that is fixed on depression bar 31.Paw 51,52 forwards extends abreast in the left and right sides of the front portion of presser feet body 50.It is opposed that paw 51,52 separates suitable slit in the place ahead of presser feet body 50, forms the introduction channel of tailoring cloth.
In the aforesaid presser feet 5, but be equipped with the knife system that comprises dead knife 6a and moving knife 6b.Dead knife 6a be fixed on the left side paw 51 on tabular cutter.Dead knife 6a is inserted in the paw 51 in the retaining hole 53 of the rectangle that is provided with and is fixing.The root that stretches out at the dead knife 6a in paw 51 outsides has been shown among Fig. 2.Dead knife 6a is provided with blade at the end that stretches out to the inside of the described introduction channel of 51,52 of paws.
But moving knife 6b is inserted in the retaining hole 54 that is provided with in the paw 52 on right side and is held.But moving knife 6b can move up at right and left by the guiding of retaining hole 54.But moving knife 6b is provided with blade at the end that stretches out to the inside of the described introduction channel of 51,52 of paws.But the root of moving knife 6b reaches the outside of paw 52 with suitable length, is fixed on the knife rest 75 of mount pad 74 lower ends.Mount pad 74 and knife rest 75 constitute the part of transmission mechanism 7 described later.But moving knife 6b along with transmit via cutter transmission mechanism 7 chatter the axle 9 (with reference to Fig. 4) rotation repeatedly, and on left and right directions back and forth movement.But carry out the blade of end of the moving knife 6b of back and forth movement, in described introduction channel, wipe and connect with the blade of dead knife 6a.
Described cloth guiding 16, the inside of the introduction channel that the arrival paw is 51,52, the effect of the orthostatism of the tailoring cloth in this introduction channel is kept in performance.By unscrewing screw 15, can regulate the position of cloth guiding 16 with guiding installation sheet 14.The operator can adjust the importing posture of tailoring cloth by the position of cloth guiding 16 is regulated, but makes and trimmed and can be carried out well by what dead knife 6a and moving knife 6b carried out.
By unscrewing screw 15, can also cloth guiding 16 be taken off from the place ahead of sewing machine table 1 with guiding installation sheet 14.When implementing other joint close, cloth guiding 16 is taken off.Other joint close is meant, but for example by dead knife 6a and moving knife 6b the edge cut-out with a slice cloth in 2 clothes, overlaps the joint close of the form of carrying out joint close on another sheet cloth etc.
The upper surface of the presser feet 52 on right side is equipped with guided plate 55.Guided plate 55 is the front portions that stand vertically at right side paw 52, and the flat board that tilts to extend towards the rear portion of left side paw 51.Cave in and bending in guided plate 55 front sides.The guided plate of so being installed 55, but to the cut off machine channeling conduct that trims the tailoring cloth that is removed of be fixed cutter 6a and moving knife 6b, be sent to the outside of the paw 51 in left side.
As shown in Figure 1, the bottom of the left side of sewing machine arm 3 is equipped with suction pipe 56 by installing rack 57.Suction pipe has the suction inlet to the left side of presser feet 5 rear aperture, the cut off machine of the tailoring cloth that described guided plate 55 transmitted is attracted in the suction inlet and removes.The installing rack 57 of suction pipe 56 can be that swinging operation is carried out at the center with the pin 58 of the above-below direction that is arranged on the rear portion, and the front portion is opened.By installing rack 57 is carried out opening operation, suction pipe 56 moves to the position of readiness that leaves from presser feet 5.Move to the suction pipe 56 on the position of readiness, can not hinder the loading and unloading of tailoring cloth on sewing machine table 1.
Sewing machine table 1 shown in Figure 1 has smooth upper surface 20 in the left and right sides of needle plate 10.Among the present invention, the upper surface 20 of sewing machine table 1 is lower than the upper surface of needle plate 10.The right side of the installation site of needle plate 10 is provided with along with the end difference 21 of inclination incision away from needle plate 10.And as shown in Figure 2, needle plate 10 has the chamfered section 18,18 that awl pulls out shape in the both sides of width.The chamfered section 18 on right side in being installed in sewing machine table 1 time and described end difference 21 continuous.The upper surface 20 of sewing machine table 1, on the right side of needle plate 10 than the height of the low chamfered section 18 of the upper surface of needle plate 10 with end difference 21, in the left side of needle plate 10 only than the height of the low chamfered section 18 of upper surface of needle plate 10.
Fig. 3 is near the front cross-sectional view of the sewing machine table 1 in the installation site of needle plate 10.The inside of sewing machine table 1 is provided with looper 8 (Looper) at the downside of needle plate 10.Looper 8 is installed in the terminal part of curved needle seat 81.The root of curved needle seat 81 is fixed on the curved needle shaft 80.Curved needle shaft 80 is erected on the position away from needle plate 10 belows, and the axial length direction is positioned on the fore-and-aft direction, by rotating repeatedly in the angular range of regulation from the transmission of machine spindle (diagram is omitted).Along with the rotation repeatedly of curved needle shaft 80, curved needle seat 81 and looper 8 are that swing between the position shown in the position shown in the solid line and the dotted line in the drawings at the center with this curved needle shaft 80.
The looper of so swinging 8, with pin 4, the rise and fall of 4... are synchronous, cross at the lower surface of needle plate 10, catch from pin hole 10a the pin 4 by descending among the 10a..., the needlework that 4... kept.The needlework that looper 8 is caught, the looper thread complexing with looper 8 is kept goes on foot and form line on the tailoring cloth on the needle plate 10.The swing of looper 8 is with pin 4,4 ... the central portion of the needle plate 10 that is descended is the summit, in the left and right sides away from needle plate 10.The end difference 21 of sewing machine table 1 interferes for fear of the wobble area with looper 8 and is provided with.
Among Fig. 3, the right side of needle plate 10 is provided with end difference 21, and the upper surface 20 of the sewing machine table 1 of homonymy is enough lower than the upper surface of needle plate 10, guarantee and the upper surface of needle plate 10 between deposit the difference of height of representing with H in the drawings.Presser feet 5 drops to the upper surface of aforesaid needle plate 10, and tailoring cloth is clipped between presser feet 5 and the needle plate 10.Presser feet 5 has knife system, but the end of the moving knife 6b that is kept by the presser feet 52 on right side, and and the knife rest 75 that is connected with this end is positioned at the outside of the presser feet 52 on this right side.
Among the present invention, there is difference of height H between the upper surface 20 of the upper surface of needle plate 10 and sewing machine table 1, produced slit between the upper surface 20 of knife rest 75 and sewing machine table 1 more than or equal to above-mentioned difference of height H.Therefore, the operator utilizes this slit tailoring cloth with hand near presser feet 5, along upper surface 20 slips of sewing machine table 1 on one side rearward press on one side, just can assist the transmission of tailoring cloth.
The upper surface 20 of sewing machine table 1 is formed by the protecgulum 22 on the top of the sewing machine table 1 that is installed as the right side that covers needle plate 10 from the front side shown in Fig. 1,3.End difference 21 forms by the edge part bending with protecgulum 22 as shown in Figure 3.
Described end difference 21 is provided with too in the left side of needle plate 10.By like this, the operator also can push down tailoring cloth in the left side of presser feet 5 near needle plate 10, the transmission of auxiliary this tailoring cloth, and the existence of the dead knife 6a that can not be extended in paw 51 outsides is disturbed.Auxiliary by such transmission, can implement aforesaid joint close well.
The low this simple structure of upper surface of the ratio needle plate 10 that above effect only is provided with by the upper surface 20 with sewing machine table 1 just can realize.The upper surface 20 of sewing machine table 1 only is be provided with lower, has in the par of the both sides of needle plate 10 expansion, has kept from the effect of the tailoring cloth of following support bulk.Therefore, the double-chain stitch sewing machine having box-shaped bed edge of the tailoring cloth of bulk can being piled up with certain width of the present invention sewed up.
But Fig. 4 is the stereogram of the transmission mechanism 7 of moving knife 6b.Among Fig. 49 is the axle of chattering.The inside that the axle 9 of chattering is supported on sewing machine arm 3 is by rotating repeatedly in the angular range of regulation from the transmission of machine spindle.Axle 9 the end of chattering is fixed with outwardly directed diametrically swing arm 90.Swing arm 90 is swung along with the rotation repeatedly of the axle 9 of chattering.
Transmission mechanism 7 has cylindrical circular transmission cylinder 70.One end of the axial length direction of transmission cylinder 70 is thicker, has outwards outstanding diametrically cutter hold-down arm 71 during this thicker part divides.The other end of transmission cylinder 70 is equipped with outwards outstanding diametrically transmission arm 72.Transmission cylinder 70 is the below with cutter hold-down arm 71 1 sides, and intercalation can freely be rotated around central shaft in the support tube 73 of the underarm that connects sewing machine arm 3 and be supported.
Stretch out towards the inside of sewing machine arm 3 on the top of transmission cylinder 70.Transmission arm 72 is installed in stretching out on the end of transmission cylinder 70.The end of transmission arm 72 is connected by the swing arm 90 of transmission connection piece 91 with the axle 9 of chattering.To the chatter swing of rotating the swing arm 90 cause repeatedly of axle 9 of transmission connection piece 91 passes to transmission arm 72.Transmission arm 72 is swung along with the swing of swing arm 90, and the transmission cylinder 70 with this swing arm 72 is rotating repeatedly with rotating in the corresponding angular range repeatedly of the axle 9 of chattering.
Transmission connection piece 91 has globe joint 92,92 at the link of swing arm 90 and transmission arm 72.Swing arm 90 and the relative position between the transmission arm 72 that globe joint 92,92 absorbs around different axle rotations change.
The cutter hold-down arm 71 that is arranged on the bottom of transmission cylinder 70 is positioned at the outside of sewing machine arm 3, and terminal part has the holder 71a of downward extension.Be fixed with mount pad 74 among this holder 71a, be arranged in the knife rest 75 of bottom of this mount pad 74, as previously mentioned, but the root of moving knife 6b is installed.But moving knife 6b is maintained on the right side paw 52 of presser feet 5, can carry out back and forth movement.But moving knife 6b carries out back and forth movement by the swing of cutter hold-down arm 71.Knife rest 75 is set at the coil spring 76 downward application of forces in the mount pad 74.But coil spring 76 will be installed in moving knife 6b in the knife rest 75 to pressing down, and be pressed onto on the dead knife 6a in the described introduction channel inside of presser feet 5.But carry out the blade of end of the moving knife 6b of back and forth movement, connect with under the state that is pressed down by coil spring 76, wiping, the edge of tailoring cloth is cut off reliably with the blade of the end of dead knife 6a.
It should be noted that, but among Fig. 4 in order to express the installment state of moving knife 6b, but illustrate should moving knife 6b installation direction different with actual direction.But moving knife 6b is installed as and the axle 9 of chattering extends in parallel, and the direction of the sewing machine arm 3 of this axle 9 of chattering is to carry out back and forth movement on the left and right directions in support.
Embedded columnar support bush 32, the logical depression bar 31 that is inserted with in this support bush 32 of maintaining in the transmission cylinder 70.The lower end of depression bar 31 reaches the outside of sewing machine arm 3, and this external part is equipped with presser feet 5 as previously mentioned.Depression bar 31 moves upward at upper and lower by sliding in support bush 32, by this motion, and presser feet 5 rise and fall.
Cutter driving mechanism 7 has the transmission cylinder 70 that connects the bottom of sewing machine arm 3 on above-below direction.This transmission cylinder 70 is by rotating repeatedly from chattering axle 9 transmission, but moving knife 6b carries out back and forth movement along with the rotation repeatedly of transmission cylinder 70.The embedded support bush 32 that maintains in the transmission cylinder 70,32 pairs of depression bars of support bush 31 carry out and can support with moving up and down, and transmission cylinder 70 is coaxial with depression bar 31, connects sewing machine arm 3.Driving device for cutter 7 can be also used as the transmission cylinder 70 this simple structures of the holding components of depression bar 31 by utilization, but realizes from the transmission of the moving knife 6b of axle 9 to the presser feet 5 of the outside that is arranged on sewing machine arm 3 that chatter of sewing machine arm 3 inside.
Fig. 5 is for representing the stereoscopic figure of another the double-chain stitch sewing machine having box-shaped bed embodiment of being correlated with of the present invention.Sewing machines shown in Fig. 5 is that middle cartridge type is double-chain stitch sewing machine having box-shaped bed, and is the same with the Sewing machines shown in Fig. 1, has sewing machine table 1, socle 2 and sewing machine arm 3.The terminal part support of sewing machine arm 3 has shank 30 and depression bar 31.The lower end of shank 30 is equipped with pin 4,4 ..., the lower end of depression bar 31 is equipped with presser feet 5.The upper surface of sewing machine table 1 has set up needle plate 10, needle plate 10 and pin 4,4 ... and the down position of presser feet 5 is corresponding.
Sewing machine table 1 has as shown in the figure in the different shape in the left and right sides of needle plate 10.The right side of needle plate 10 (butt side), for having the box-shaped part 1a of the smooth upper surface 20 of comparing the suitable length that extends back with needle plate 10, relative therewith, the left side of needle plate 10 (end side) is for having the cylindrical portion 1b of the smooth upper surface 20 in the length range that is in needle plate 10.
The upper surface 20 of box-shaped part 1a and cylindrical portion 1b, all the upper surface than needle plate 10 is low.The upper surface 20 of box-shaped part 1a is by the chamfered section 18 (with reference to Fig. 2) of needle plate 10 right side edge, with continuous with the upper surface of needle plate 10 along with the end difference 21 of the inclination incision away from needle plate 10.The upper surface 20 of cylindrical portion 1b is continuous with the upper surface of needle plate 10 by the chamfered section 18 (with reference to Fig. 2) of needle plate 10 left side edge.
In the embodiment shown in Figure 5, be sent to the edge of the tailoring cloth at needle downing position place, trimmed, therefore can implement the joint close of roughly certain stitching width by the motion of the knife system of assembling in the presser feet 5.In addition, the upper surface 20 of sewing machine table 1 is lower than the upper surface of needle plate 10, so the operator can live tailoring cloth with hand near the both sides of needle plate 10 and presser feet 5, the transmission of auxiliary this tailoring cloth, thus can carry out the joint close of bulk tailoring cloth reliably.
In the embodiment of Fig. 5, the end side of sewing machine table 1 is provided with cylindrical portion 1b, can tackle to lead to making of the tubular cloth of inserting this cylindrical portion 1b.
Embodiment discussed above only is used for making technology contents of the present invention clear and definite, the present invention should not be restricted to above-mentioned embodiment and do narrow definition, can carry out various changes and enforcement in technological thought of the present invention and the described scope of claim.
Claims (5)
- One kind double-chain stitch sewing machine having box-shaped bed, comprise: have and be used for carrying the box-shaped sewing machine table of the smooth upper surface of tailoring cloth at width two sides of needle plate, shank and the depression bar being supported by the sewing machine arm of this sewing machine table top and hang down, be installed in the pin and the presser feet of the lower end of this shank and depression bar respectively, and the connecting gear and the looper that are arranged on the described sewing machine table inside of described needle plate below, described presser feet descends with described depression bar, be pressed onto on the described needle plate, applied the tailoring cloth of transmission of the long side direction of described needle plate by described connecting gear, by the described pin that moves up and down jointly with described shank, and to be the center with the fulcrum parallel with described direction of transfer make along the described looper of the lower surface swing of described needle plate, whereinDescribed presser feet also has knife system, but this knife system have along the upper surface of described needle plate moving knife at the direction back and forth movement that intersects with described direction of transfer, but and wipe the dead knife that connects with this moving knife.
- 2. according to claim 1 double-chain stitch sewing machine having box-shaped bed, it is characterized in that:The upper surface of described sewing machine table constitutes the upper surface that is lower than this needle plate in the one or both sides of the width of described needle plate.
- 3. according to claim 2 double-chain stitch sewing machine having box-shaped bed, it is characterized in that:The upper surface of described sewing machine table and the upper surface of described needle plate, mutually continuous in the both sides of described needle plate by the end difference that the interference of avoiding between the wobble area with described looper is provided with.
- 4. according to each is described double-chain stitch sewing machine having box-shaped bed in the claim 1 to 3, it is characterized in that having:Be arranged on the axle of chattering of described sewing machine arm inside, but and with this chatter the axle rotation repeatedly pass to described moving knife, but make this moving knife carry out the transmission mechanism of back and forth movement.
- 5. according to claim 4 double-chain stitch sewing machine having box-shaped bed, it is characterized in that:Described transmission mechanism has:Transmission cylinder connects the bottom of described sewing machine arm and is supported the embedded support bush that maintains the bottom of supporting described depression bar on above-below direction; AndTransmission connection piece, the rotation repeatedly of transmitting the described axle of chattering to the top of the described transmission cylinder that is positioned at described sewing machine arm inside,In the bottom of the described transmission cylinder of the outside that reaches described sewing machine arm, but be provided with the mount pad of described moving knife.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009053779 | 2009-03-06 | ||
| JP2009-053779 | 2009-03-06 | ||
| JP2009108327A JP4822193B2 (en) | 2009-03-06 | 2009-04-27 | Box bed double chain stitch machine |
| JP2009-108327 | 2009-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101824709A true CN101824709A (en) | 2010-09-08 |
| CN101824709B CN101824709B (en) | 2013-03-06 |
Family
ID=42688866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101185755A Active CN101824709B (en) | 2009-03-06 | 2010-03-05 | Double-chain stitch sewing machine having box-shaped bed |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101319610B1 (en) |
| CN (1) | CN101824709B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808295A (en) * | 2011-05-18 | 2012-12-05 | Juki株式会社 | Sewing machine |
| CN103374796A (en) * | 2012-04-19 | 2013-10-30 | 中国船舶重工集团公司第七一六研究所 | Cutting walking box mechanism of automatic blanket flat-seaming platform |
| CN105088545A (en) * | 2015-09-02 | 2015-11-25 | 蔡金财 | Cylinder type direct-driving high-speed automatic thread cutting sewing machine with computer |
| CN108026682A (en) * | 2015-04-27 | 2018-05-11 | 百福工业系统与机械有限责任公司 | Spininess chain stitch sewing machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002253882A (en) * | 2002-03-05 | 2002-09-10 | Hosei Sewing Machine Seizo Kk | Spreader drive unit for sewing machine |
| JP2003024674A (en) * | 2001-07-17 | 2003-01-28 | Juki Corp | Cylindrical sewing machine |
| CN1441106A (en) * | 2002-02-26 | 2003-09-10 | 飞马缝纫机制造株式会社 | Double thread seam locking sewing machine |
| EP1473399A1 (en) * | 2003-04-30 | 2004-11-03 | LONATI S.p.A. | Device for precise placement of the toe of a hosiery item during automated insertion thereof in the conveyor of a sewing machine for closing the toe |
| CN101210365A (en) * | 2006-12-28 | 2008-07-02 | 大和缝纫机制造株式会社 | Sewing machine presser foot device |
| CN101240485A (en) * | 2007-02-08 | 2008-08-13 | 大和缝纫机制造株式会社 | Sewing machine with wire-cutting device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1123232B (en) * | 1979-09-20 | 1986-04-30 | Rockwell Rimoldi Spa | PERFECTED FABRIC TRIMMING DEVICE FOR SEWING MACHINES |
| US5370071A (en) * | 1991-09-11 | 1994-12-06 | Union Special Corporation | Lap seamer device for sewing machine |
| JP3499358B2 (en) * | 1996-01-19 | 2004-02-23 | ペガサスミシン製造株式会社 | Sewing machine with scalpel presser with cloth guide |
| JPH11300071A (en) * | 1998-04-16 | 1999-11-02 | Yamato Sewing Mach Co Ltd | Beltlike article cutter for sewing machine |
-
2010
- 2010-02-16 KR KR1020100013809A patent/KR101319610B1/en active IP Right Grant
- 2010-03-05 CN CN2010101185755A patent/CN101824709B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003024674A (en) * | 2001-07-17 | 2003-01-28 | Juki Corp | Cylindrical sewing machine |
| CN1441106A (en) * | 2002-02-26 | 2003-09-10 | 飞马缝纫机制造株式会社 | Double thread seam locking sewing machine |
| JP2002253882A (en) * | 2002-03-05 | 2002-09-10 | Hosei Sewing Machine Seizo Kk | Spreader drive unit for sewing machine |
| EP1473399A1 (en) * | 2003-04-30 | 2004-11-03 | LONATI S.p.A. | Device for precise placement of the toe of a hosiery item during automated insertion thereof in the conveyor of a sewing machine for closing the toe |
| CN101210365A (en) * | 2006-12-28 | 2008-07-02 | 大和缝纫机制造株式会社 | Sewing machine presser foot device |
| CN101240485A (en) * | 2007-02-08 | 2008-08-13 | 大和缝纫机制造株式会社 | Sewing machine with wire-cutting device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808295A (en) * | 2011-05-18 | 2012-12-05 | Juki株式会社 | Sewing machine |
| CN102808295B (en) * | 2011-05-18 | 2016-01-06 | Juki株式会社 | Sewing machines |
| CN103374796A (en) * | 2012-04-19 | 2013-10-30 | 中国船舶重工集团公司第七一六研究所 | Cutting walking box mechanism of automatic blanket flat-seaming platform |
| CN103374796B (en) * | 2012-04-19 | 2015-04-22 | 中国船舶重工集团公司第七一六研究所 | Cutting walking box mechanism of automatic blanket flat-seaming platform |
| CN108026682A (en) * | 2015-04-27 | 2018-05-11 | 百福工业系统与机械有限责任公司 | Spininess chain stitch sewing machine |
| CN105088545A (en) * | 2015-09-02 | 2015-11-25 | 蔡金财 | Cylinder type direct-driving high-speed automatic thread cutting sewing machine with computer |
| CN105088545B (en) * | 2015-09-02 | 2017-10-03 | 宁波三合鑫自动化有限公司 | Solid bowl type computer controlled direct-drive high-speed automatic tangent flat seam machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101319610B1 (en) | 2013-10-23 |
| CN101824709B (en) | 2013-03-06 |
| KR20100100609A (en) | 2010-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201525941U (en) | Presser foot and sewing machine | |
| CN101503846B (en) | Driving device for cutter of sewing machine | |
| CN200988895Y (en) | Sequin transfering apparatus | |
| CN101824709B (en) | Double-chain stitch sewing machine having box-shaped bed | |
| JP2006223708A (en) | Sewing machine and eyelet hole sewing machine | |
| JP4919111B2 (en) | Sewing machine presser | |
| JP2009106457A (en) | Thread cutter of sewing machine | |
| JP4573658B2 (en) | Sewing sewing machine | |
| CN101210364A (en) | Sewing machine presser foot | |
| JP4686025B2 (en) | Sewing machine thread trimmer | |
| JP4769505B2 (en) | Sewing sewing machine | |
| JP5468236B2 (en) | Sewing sewing machine | |
| CN1837443B (en) | Fillet sewing machine | |
| CN101210365A (en) | Sewing machine presser foot device | |
| JP5084296B2 (en) | Sewing sewing machine | |
| JP2007296187A (en) | Binding sewing machine | |
| CN102808295B (en) | Sewing machines | |
| CN101270538B (en) | Wire cutting device of sewing machine | |
| CN100359078C (en) | Automatic thread-cutting device for cylindrical sewing machine | |
| JP4822193B2 (en) | Box bed double chain stitch machine | |
| JP2017080315A (en) | Thread cutting mechanism and sewing machine | |
| JP5241244B2 (en) | Sewing sewing machine | |
| JP2004174120A (en) | Feeding device of sewing machine | |
| JP2009279216A (en) | Binding sewing machine | |
| CN101643978B (en) | Corner knife mechanism of welting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |