CN107304496A - Sewing machine - Google Patents

Abstract

The present invention carries out the sewing of colourful preceding left front.Sewing machine possesses：Cloth pressing, it keeps clothing body cloth and preceding left front cloth；Cloth travel mechanism, it makes plane of the cloth pressing along mounting clothing body cloth arbitrarily move；Suture needle reciprocating mechanism, it carries out pin to the clothing body cloth kept by cloth pressing and preceding left front cloth；Cutter mechanism, it forms joint-cutting in the clothing body cloth kept by cloth pressing and preceding left front cloth along fixed direction；And control device, it is controlled to cloth pressing, cloth travel mechanism, suture needle reciprocating mechanism and cutter mechanism, control device is controlled to cloth travel mechanism and suture needle reciprocating mechanism, form the first stitching and the second stitching, cutter mechanism is controlled, joint-cutting is formed between the first stitching and the second stitching, the sewing machine possesses：First turns back mechanism, and it turns back preceding left front cloth along the first stitching；And second turn back mechanism, it turns back preceding left front cloth along the second stitching.

Description

Sewing machine

Technical field

The present invention relates to the sewing machine of the sewing of left front before carrying out.

Background technology

The existing sewing machine 1000 of the sewing of left front, as shown in figure 22, possesses before carrying out：Suture needle reciprocating mechanism 1100, it, in the preceding left front cloth N of clothing body cloth K chest, forms downward two lines mark from collar for configuration：Cutting knife Mechanism 1200, it forms the joint-cutting along the stitching between two lines mark；And cloth pressing mechanism 1300, it is pressed from top Clothing body cloth K and preceding left front cloth N is pressed, moves clothing body cloth K and preceding left front cloth N on the direction along two lines mark (for example, referring to patent document 1).

Patent document 1：Japanese Unexamined Patent Publication 2005-110963 publications

In addition, the sewing of preceding left front has following processes：As shown in Figure 23 (A), Figure 23 (B), in clothing body cloth K chest Left front cloth N before configuration；Form two lines mark n1, n2 (Figure 23 (C))；Joint-cutting c (Figure 23 (D)) is formed between stitching n1, n2； The part of preceding left front cloth N joint-cutting c both sides is folded into (Figure 23 (E)) to clothing body cloth K inner side respectively；And by each It is partially folded to be sutured (Figure 23 (F)) for rectangle.

The sewing for the preceding left front being made up of the process is the sewing of simple basic model, and above-mentioned existing sewing machine only can Form two lines mark n1, n2 and joint-cutting c as shown in Figure 23 (D).

But, for the sewing of preceding left front, an urgent demand is formed stitching on the basis of the sewing of above-mentioned basic model Obtain more rich colorful.For example, preceding left front cloth N left side and right side are turned back in the presence of using stitching n1, n2 as folding line, The requirement of the sewing of left front before being carried out in the way of it will be formed in the decorative thread of vicinity of each folding line (Top stitch) formation, But existing sewing machine can not carry out the sewing.

Therefore, the formation of decorative thread must be carried out by other sewing machines or sewn by hand, it is impossible to efficiently be carried out The sewing operation of preceding left front.

The content of the invention

It is an object of the present invention to the sewing of colourful preceding left front is more efficiently carried out, with following (1)~ (7) arbitrary characteristics.

(1)

A kind of sewing machine, it possesses：

Cloth pressing, it keeps clothing body cloth and preceding left front cloth；

Cloth travel mechanism, it makes the cloth pressing arbitrarily be moved along the plane for loading the clothing body cloth；

Suture needle reciprocating mechanism, it is to the clothing body cloth and the preceding left front cloth that are kept by the cloth pressing Carry out pin；

Cutter mechanism, it is fixed in the clothing body cloth and the preceding left front cloth edge kept by the cloth pressing Direction forms joint-cutting；And

Control device, it is to the cloth pressing, the cloth travel mechanism, the suture needle reciprocating mechanism and described Cutter mechanism is controlled,

The control device,

The cloth travel mechanism and the suture needle reciprocating mechanism are controlled, the first stitching and the second line is formed Mark,

The cutter mechanism is controlled, joint-cutting is formed between first stitching and the second stitching,

The sewing machine is characterised by possessing：

First turns back mechanism, and it turns back the preceding left front cloth along first stitching；And

Second turns back mechanism, and it turns back the preceding left front cloth along second stitching.

(2)

In the sewing machine that above-mentioned (1) is recorded, it is characterised in that

The control device performs following controls successively, i.e.,：

First sewing control, is controlled to the cloth travel mechanism and the suture needle reciprocating mechanism, forms institute State the first stitching and second stitching；

First is turned back control, and mechanism of being turned back to described first is controlled, by the preceding left front cloth along the First Line Mark turns back；

Second sewing control, is controlled to the cloth travel mechanism and the suture needle reciprocating mechanism, is passing through First stitching of described first turns back preceding left front cloth that mechanism turns back and the joint-cutting realized by the cutter mechanism Between forming position, form first and turn back stitching；

Second is turned back control, and mechanism of being turned back to described second is controlled, by the preceding left front cloth along second line Mark turns back；And

3rd sewing control, is controlled to the cloth travel mechanism and the suture needle reciprocating mechanism, is passing through Second stitching of described second turns back preceding left front cloth that mechanism turns back and the joint-cutting realized by the cutter mechanism Between forming position, form second and turn back stitching.

(3)

In the sewing machine described in above-mentioned (2), it is characterised in that

Possess the 3rd to turn back mechanism, the 3rd mechanism of turning back turns back the preceding left front cloth stitching folding along described second Return,

The control device performs following controls successively, i.e.,：

3rd is turned back control, and mechanism of being turned back to the described 3rd is controlled, by the preceding left front cloth along second folding Loop line mark turns back；And

Joint-cutting formation control, is controlled to the cutter mechanism, in the clothing body cloth and the preceding left front cloth The forming position of the joint-cutting, forms joint-cutting.

(4)

In the sewing machine described in above-mentioned (3), it is characterised in that

Described 3rd mechanism of turning back has：Preceding left front cloth pressing, it is by down maneuver from top to the preceding left front Cloth is pressed；And wind pushing mechanism, it is equipped on the preceding left front cloth pressing, and the preceding left front cloth is blown.

(5)

In the sewing machine that any one of above-mentioned (1) to (4) is recorded, it is characterised in that

Described first mechanism of turning back possesses：Preceding left front folded plate, it crosses the joint-cutting realized by the cutter mechanism and forms position Put and moved back and forth；Actuator, it turns into the driving source of the movement of the preceding left front folded plate；And supporting mechanism, it is by institute Left front folded plate is supported in the way of it can carry out described move back and forth before stating,

The preceding left front folded plate is turned back the preceding left front cloth along first stitching by the movement in outlet, is passed through The movement in return road and from top to being pressed along the preceding left front cloth that second stitching turns back,

The supporting mechanism has cam mechanism, and the cam mechanism makes the movement in the outlet of the preceding left front folded plate exist The position movement lower than the movement in the return road.

(6)

In the sewing machine described in above-mentioned (5), it is characterised in that

Described first mechanism of turning back possesses auxiliary presser foot plate, the auxiliary presser foot plate relative to positioned at it is described move back and forth open Beginning position the preceding left front folded plate, configured across by the joint-cutting forming position that the cutter mechanism is realized,

The supporting mechanism possesses link gear, and the link gear is not crossing the joint-cutting shape realized by the cutter mechanism Into the scope of position, the auxiliary presser foot plate is set to be moved back and forth in linkage with the preceding left front folded plate.

(7)

In the sewing machine that any one of above-mentioned (1) to (6) is recorded, it is characterised in that

Described second mechanism of turning back has wind pushing mechanism, and the wind pushing mechanism is blown to the preceding left front cloth.

The effect of invention

The present invention possesses：First turns back mechanism, and it turns back preceding left front cloth along the first stitching；And second turn back machine Structure, it turns back preceding left front cloth along the second stitching, therefore, it is possible to by each folding line be formed about decorative thread in the way of enter The sewing of left front before row, the colourful sewing of left front before coping with.

In addition, the present invention can carry out the formation of the current decorative thread carried out by other processes or manual working, therefore Sewing operation can quickly and efficiently be carried out.

Brief description of the drawings

Fig. 1 (A)~Fig. 1 (I) is the explanation figure of each operation of left front sewing before representing.

Fig. 2 is the oblique view for the sewing machine for representing first embodiment.

Fig. 3 is the oblique view of cloth pressing.

Fig. 4 is the first oblique view for turning back mechanism.

Fig. 5 (A) is in the state of the midway that preceding left front folded plate 51 is moved to the right from the starting position moved back and forth One oblique view for turning back mechanism 50, Fig. 5 (B) is its left side view.

In the state of Fig. 6 (A) is the midway that preceding left front folded plate 51 is moved to the left towards the starting position moved back and forth First oblique view for turning back mechanism 50, Fig. 6 (B) is its left side view.

Fig. 7 is the oblique view of clamp system.

Fig. 8 is the oblique view of support frame.

Fig. 9 is the 3rd oblique view for turning back mechanism.

Figure 10 is the block diagram for the control system for representing sewing machine.

Figure 11 is the top view of the cloth pressing kept to clothing body cloth and preceding left front cloth.

Figure 12 is the top view of the cloth pressing after first and second stitching is formed.

Figure 13 is the top view of the cloth pressing after the turning back of preceding left front cloth that mechanism realizes of being turned back by first.

Figure 14 be first turn back stitching formed after cloth pressing top view.

Figure 15 is the top view of the cloth pressing after the turning back of preceding left front cloth that mechanism realizes of being turned back by second.

Figure 16 be second turn back stitching formed after cloth pressing top view.

Figure 17 is the top view of the cloth pressing after the turning back of preceding left front cloth that mechanism realizes of being turned back by the 3rd.

Figure 18 is the top view of the cloth pressing after the joint-cutting realized by cutter mechanism is formed.

Figure 19 is the flow chart of the action of left front sewing before representing.

Figure 20 is the oblique view for the sewing machine for representing second embodiment.

Figure 21 is the oblique view of the hemming foot part for the sewing machine for representing second embodiment.

Figure 22 is the oblique view of existing sewing machine.

Figure 23 (A)~Figure 23 (F) is the explanation figure for each operation for representing the preceding left front sewing that existing sewing machine is carried out.

The explanation of label

10th, 10B sewing machines

12 suture needles

15 sewing machine electromotors

21 lower plates

22 upper plates

30 cloth travel mechanisms

33 X-axis motor

34 Y-axis motor

40 cutter mechanisms

50 first turn back mechanism

Left front folded plate before 51

52 supporting mechanisms

53 auxiliary presser foot plates

54 helical springs

55 cylinders (actuator)

56 cam mechanisms

57 link gears

60 second turn back mechanism

61 air jetting nozzles (wind pushing mechanism)

65 the 3rd turn back mechanism

66 presser feet frames (preceding left front cloth pressing)

67 air jetting nozzles (wind pushing mechanism)

68 cylinders (actuator)

80 maintaining bodies

90 control devices

221 elongated holes

561 boss

562 lobe plates

562a cam parts

571 connecting rods

571a fasteners

572 abutting parts

573 abutting parts

574 left retainers

575 right retainers

C joint-cuttings

K clothing body clothes

N clothes

The stitchings of n1 first

N11 first turns back stitching

N12 second turns back stitching

The stitchings of n2 second

Embodiment

[first embodiment]

Below, referring to the drawings, the first embodiment to sewing machine involved in the present invention is described in detail.At this In embodiment, to being illustrated suitable for preceding left front cloth N to the clothing body cloth K of the front side sewing machines sewed up.

[sewing process]

First, based on Fig. 1 (A)~Fig. 1 (I) to by preceding left front cloth N to clothing body cloth K sew up when sewing process carry out Explanation.

First, on front side of preparation clothing body cloth K (Fig. 1 (A)), preceding left front cloth N is overlapped in clothing body cloth K chest Portion (Fig. 1 (B)).

Next, scope the first and second lines of formation in the upper end from preceding left front cloth N untill near bottom Mark n1, n2 (Fig. 1 (C)).In addition, in Fig. 1 (C), it is illustrated that approached for first and second stitching n1, n2 bottom, but it is actual Upper first stitching n1 and the second stitching n2 is parallel and mutually has a little gap and is formed.Alternatively, it is also possible to by the first stitching N1 turns back and forms the second stitching n2 upward after being formed towards downside.

Next, preceding left front cloth N left part is turned back (Fig. 1 (D)) along the first stitching n1, to the preceding left front cloth turned back Material N forms first in the way of by between the first stitching n1 and the second stitching n2 and turned back stitching n11 (Fig. 1 (E)).

Also, preceding left front cloth N left part is turned back along the first stitching n11 that turns back, and by the preceding left front cloth N right side End is turned back (Fig. 1 (F)) along the second stitching n2.Moreover, in the way of between the stitching n11 that turned back by the second stitching n2 and first Second is formed to turn back stitching n12 (Fig. 1 (G)).

Next, preceding left front cloth N right part is turned back (Fig. 1 (H)) along the second stitching n12 that turns back, to clothing body cloth K And preceding left front cloth N, forming joint-cutting c positioned at the first positions between stitching n12 of turning back of stitching n11 and second of turning back.This is cut Seam c is (Fig. 1 (I)) of the scope formation untill near bottom in the upper end from preceding left front cloth N.

Moreover, the various pieces of the both sides of the joint-cutting c in preceding left front cloth N are turned back to clothing body cloth K rear side, will The various pieces of the both sides of joint-cutting c in preceding left front cloth N are folded into rectangle, by the preceding left front cloth N's for being folded into rectangle Various pieces are sutured along joint-cutting c two lateral clothing body cloth K, thus the left front before clothing body cloth K is formed.

In addition, the sewing machine 10 being illustrated below performs above-mentioned Fig. 1 (A)~Fig. 1 (I) each operation.

[schematic configuration of sewing machine]

As shown in Fig. 2 sewing machine 10 possesses：Cloth pressing 20, it keeps clothing body cloth K and preceding left front cloth N；Workbench 11, its mounting clothing body cloth K in sewing；Cloth travel mechanism 30, it makes upper surfaces of the clothing body cloth K along workbench 11 any Move on ground；Suture needle reciprocating mechanism (not shown), it carries out suture needle to the clothing body cloth K and front door kept by cloth pressing 20 Flap cloth N's falls pin；Cutter mechanism 40, it is in the clothing body cloth K and preceding left front cloth N kept by cloth pressing 20 along fixed Direction forms joint-cutting；First~the 3rd turns back mechanism 50,60,65, and they turn back preceding left front cloth N；Maintaining body 80, it is propped up Support in the side of cloth travel mechanism 30, sewing when and cut-out when preceding left front cloth N is pressed；Control device 90, it is carried out The action control of above-mentioned each structure；And sewing machine stand 100, it is supported to above-mentioned each portion.

In addition, above-mentioned sewing machine 10 is also equipped with container mechanism, line adjuster device, Libra etc., but due to these parts be with Known part identical structure, therefore explanation omission.

[sewing machine stand]

As shown in Fig. 2 sewing machine stand 100 possesses：Base portion 101, it is located at downside；Longitudinal body portion 102, it is from base The one end in portion 101 is erected to vertical top；And arm 103, it stretches out in the horizontal direction from longitudinal body portion 102.

In the following description, Y direction will be set to along the direction of the length direction of arm 103, suture needle is carried out above and below Mobile direction is set to Z-direction, and the direction orthogonal with Y direction and Z-direction is set into X-direction.In addition, Z-direction Parallel with vertical above-below direction, Y direction and X-direction are horizontal directions.

In addition, as needed, facial 104 side of the front end of arm 103 is set into front side, its opposite side is set to rear side, , towards left-hand side is set into left side in the state of rear, right-hand side is set to right side by sight and illustrated.

[workbench]

Workbench 11 is rectangular flat board, is installed on its upper surface in horizontal mode on base portion 101.Separately Outside, workbench 11 is configured in the lower section of the suture needle supported by suture needle reciprocating mechanism, mounting clothing body cloth K etc. in its upper surface Object to be sewn and sewed.Therefore, it is formed with the needle falling hole that suture needle enters in the needle downing position of workbench 11.

In addition, the one end in workbench 11 is provided with toggle clamp 14.

[suture needle reciprocating mechanism]

Suture needle reciprocating mechanism possesses：Sewing machine electromotor 15, it is contained in the inside (reference picture of sewing machine stand 100 10)；Upper axle, it rotates the sewing machine electromotor 15 as driving source；Crank mechanism, it is by axle is obtained from this moment of torsion Reciprocating motion above and below being transformed to；And needle bar, suture needle is maintained at bottom by it, by crank mechanism carry out above and below it is reciprocal Motion.

In addition, the suture needle reciprocating mechanism being made up of these structures was known in the past, therefore detail explanation is saved Slightly.

[cloth pressing]

As shown in figure 3, cloth pressing 20 possesses the lower plate 21 and upper plate 22 of oblong-shaped in approximate same size.Moreover, The one end of upper plate 22 rotationally can link via hinge 222,222 with the one end of lower plate 21, in upper plate 22 and lower plate 21 Between can clip clothing body cloth K and be kept.In addition, handle 223 is equipped with the other end of upper plate 22, the handle 223 are used to make upper plate 22 rotate relative to the fluctuating of lower plate 21.

In addition, the upper surface fixed equipment in the one end of lower plate 21 has two projections 212,212 of boss-shaped, the projection 212nd, 212 are used to make the clamp system 35 described below detachably keep cloth pressing 20.

Cloth pressing 20 is with the state of upper plate 22 is closed, the length direction and Y direction of lower plate 21 and upper plate 22 Parallel mode is supported by cloth travel mechanism 30.

Moreover, in lower plate 21 and the central portion of the width of upper plate 22, the state of plate face insertion is respectively formed with Elongated hole 221 along its length (elongated hole of lower plate 21 omits diagram).Moreover, the elongated hole and the elongated hole 221 of upper plate 22 of lower plate 21 Length and width it is consistent, the mutual position consistency in the state of lower plate 21 is overlapping with upper plate 22.Preceding left front cloth N's When sewing up, the formation of stitching and joint-cutting is carried out in the inner side of these elongated holes 221.

The recess 224 of substantially rectangular shape is formed with around the elongated hole 221 of the upper surface of upper plate 22, the recess 224 Inner side at upper plate 22 thickness of slab it is thinning.In the inner side of the recess 224, abreast it is configured with what is described below with elongated hole 221 The first preceding left front folded plate 51 for turning back mechanism 50.In sewing, preceding left front folded plate 51 is in preceding left front cloth N downside along X-axis side To moving action, but due to configuring in the inner side of recess 224, therefore, it is possible to move action without occurring and preceding left front The situation that cloth N is hooked.

[first turn back mechanism]

As shown in figure 3, the first mechanism 50 of turning back possesses：Preceding left front folded plate 51, it is with the joint-cutting shape of left front cloth N before crossing Mode into position (elongated hole 221) is moved back and forth along X-direction；Supporting mechanism 52, it can be past by preceding left front folded plate 51 It is multiple movably to support；Auxiliary presser foot plate 53, its across by joint-cutting forming position (elongated hole 221) that cutter mechanism 40 is realized and with Preceding left front folded plate 51 positioned at the starting position moved back and forth is arranged as opposed to；Helical spring 54, before it makes left front folded plate 51 to The starting position moved back and forth resets；And as the cylinder 55 (reference picture 8) of actuator, left front folded plate 51 resists spiral shell before it makes Revolve spring 54 and move.

In addition, first turn back mechanism 50 the structure in addition to cylinder 55 all by the upper plate 22 of cloth pressing 20 Support, only cylinder 55 is supported by the support frame 32 of the cloth travel mechanism 30 described below.

Preceding left front folded plate 51 is the flat board along the strip of Y direction, and the position in the left side near elongated hole 221 is set into reciprocal Mobile starting position.

Preceding left front folded plate 51 has the length with the same degree of elongated hole 221 in the Y-axis direction, can be by preceding left front cloth N Turned back in substantially length range.

Auxiliary presser foot plate 53 is the flat board along the strip of Y direction, and the position on the right side near elongated hole 221 is set into initial Position.

Auxiliary presser foot plate 53 has the length with the same degree of elongated hole 221 in the Y-axis direction, can be to preceding left front cloth N Pressed in substantially length range.

The auxiliary presser foot plate 53 can be lifted around Y-axis by the second movable body 523 of the supporting mechanism 52 described below Support, has preceding left front cloth N presser feet in position eccentric to the left compared with the center for lifting axle of the second movable body 523 Face.Moreover, in the auxiliary presser foot plate 53, in position eccentric to the left compared with the center for lifting axle of the second movable body 523 It is equipped with two magnet 531.

Upper plate 22 is formed by magnet such as steel, and auxiliary presser foot plate 53 is configured to, by the attraction of two magnet 531 Lifted to the side of upper plate 22, the holding pressure of the preceding left front cloth N on for upper plate 22 can be applied.

Supporting mechanism 52 possesses：Holding frame 521, preceding left front folded plate 51 is fixed holding by it；First movable body 522, it will Holding frame 521 can be supported with lifting around Y-axis；Second movable body 523, auxiliary presser foot plate 53 can be lifted twelve Earthly Branches by it around Y-axis Support；Sliding rail 524, it can movably be guided to the first movable body 522 and the second movable body 523 along X-direction：It is convex Mechanism 56 is taken turns, it is adjusted with height of the direction accordingly to the preceding left front folded plate 51 that move back and forth of preceding left front folded plate 51 It is whole；And link gear 57, it makes auxiliary presser foot plate 53 be moved back and forth in linkage with preceding left front folded plate 51.

Holding frame 521 supported in which can be lifted around Y-axis by the first movable body 522, and axle is being lifted with the first movable body 522 Center preceding left front folded plate 51 is kept compared to position eccentric to the left.Therefore, by holding frame 521 relative to first Movable body 522 lifts, so that preceding left front folded plate 51 can be vertically close with the upper surface of upper plate 22 or discretely moved.

Fig. 4 is the expansion oblique view on the periphery of supporting mechanism 52.As illustrated, the first movable body 522 has in its left part The vertical plate part 522a of slave board shape, the one end of helical spring 54 is linked with vertical plate part 522a, 54 pair first of the helical spring Movable body 522 applies tension force to the left.

In addition, being formed with the otch 522b for the semicircle shape being open upward in vertical plate part 522a upper end.Direction The plunger that right carries out the cylinder 55 of protrusion action is chimeric with otch 522b and can link from top.

Fig. 5 (A) is in the state of the midway that preceding left front folded plate 51 is moved to the right from the starting position moved back and forth One oblique view for turning back mechanism 50, Fig. 5 (B) is its left side view, and Fig. 6 (A) is preceding left front folded plate 51 towards opening for moving back and forth First in the state of the midway moved to the left of the beginning position oblique view for turning back mechanism 50, Fig. 6 (B) is its left side view.

As shown in Fig. 4~Fig. 6, cam mechanism 56 possesses：Boss 561, its as the cam for being equipped on holding frame 521 from Kinetoplast works；Lobe plate 562, it possesses the cam surface with the sliding contact of boss 561；And spring 563, it is by lobe plate 562 to prescribed direction pretension.

Boss 561 is the projection of the pole shape stretched out forwards on the preceding surface of holding frame 521, relative to holding frame 521 The central shaft lifted and be arranged on left.The central shaft that lifts of the foregoing preceding left front folded plate 51 also relative to holding frame 521 And be fixedly supported on left, so if boss 561 from lobe plate 562 by upward or lower section is pressed, then preceding left front folded plate 51 Also linkage and similarly by upward or lower section press.

Lobe plate 562 is on upper plate 22, and one end can rotationally be supported around Y-axis by Support bracket 564, from the support End is stretched out to the right.

The lobe plate 562 possesses cam part 562a, and cam part 562a upper and lower surface turns into be slided with boss 561 The cam surface of dynamic contact, cam part 562a extends along X-direction.Cam part 562a is located at reciprocal shifting with preceding left front folded plate 51 The position of boss 561 in the case of dynamic starting position, which is compared, is located at right.

Moreover, lobe plate 562 has lug boss 562b, the one end of spring 563, cam are linked with lug boss 562b Plate 562 and cam part 562a right part are applied in the tension force on direction downward.

Thus, cam part 562a upper surface and lower surface are maintained reduced from left part towards right part skewed State.

The left part of cam part 562a in the heeling condition is higher than boss 561, if boss 561 from cam part 562a is compared to be moved positioned at the starting position moved back and forth in left side towards right, then with cam part 562a lower face side Sliding contact.Therefore, preceding left front folded plate 51 is via boss 561 and lobe plate 562, while from the pressing below the receiving of spring 563 Power, one side are moved to the right.

In addition, cam part 562a right part is reduced compared with boss 561, if boss 561 from cam part 562a phases The right side of ratio is moved to the left towards the starting position moved back and forth, then slides and connect with cam part 562a upper surface side Touch.Therefore, preceding left front folded plate 51 is via boss 561 and lobe plate 562, while to the upper table of upper inclined cam part 562a to the left Face carries out profiling and lifted upward, moves to the left on one side.

As shown in Figures 3 and 4, link gear 57 possesses：Connecting rod 571, it stretches out to the right from the first movable body 522； First and second abutting part 572,573, they are arranged at the second movable body 523；And left retainer 574 and right retainer 575, Their movable ranges to the second movable body 523 are limited.

Connecting rod 571 is long strip-board shape in left-right direction, and left part is fixedly supported to the first movable body 522.In addition, The right part of connecting rod 571 possesses the fastener 571a of the tabular bent downwards.

First and second abutting part 572,573 is the flat board uprightly set on the top of the second movable body 523, and first supports Socket part 572 is configured at the right part of the second movable body 523, and the second abutting part 573 is configured at left part.Moreover, the first abutting part 572 and second abutting part 573 be configured at along along the same line of X-direction.

In addition, the fastener 571a of foregoing connecting rod 571 is configured to be located at the first abutting part 572 and the second abutting part Between 573.

Therefore, if the first movable body 522 since the starting position moved back and forth to the right move, until connecting rod Untill 571 fastener 571a reaches the first abutting part 572, only the first movable body 522 is moved to the right, if fastener 571a reach the first abutting part 572, then the second movable body 523 be concatenated bar 571 and press, also together with the first movable body 522 to Right is moved.

In addition, if the first movable body 522 starts movement, then connecting rod to the left towards the starting position moved back and forth 571 fastener 571a is separated with the first abutting part 572, untill the second abutting part 573 is reached, only the first movable body 522 Move to the left, if fastener 571a reach the second abutting part 573, the second movable body 523 be concatenated bar 571 by Pressure, is also moved to the left together with the first movable body 522.

Left retainer 574 is configured in the left of the second movable body 523, the second movable body 523 abutted with left retainer 574 and Prevent further movement to the left.That is, left retainer 574 provides out the left position of the movable range of the second movable body 523.

If the left for having prevented the second movable body 523 by the left retainer 574 is moved, by link gear 57 The left movement of the first movable body 522 linked is also prevented.That is, left retainer 574 is it may be said that also provide out that first can The left position of the movable range of kinetoplast 522.

Moreover, be located at the left position of the movable range provided out by the left retainer 574 in the first movable body 522 In the case of, left front folded plate 51 is in " starting position moved back and forth " before being set as.

In addition, be located at the left position of the movable range provided out by the left retainer 574 in the second movable body 523 In the case of, it is set as that auxiliary presser foot plate 53 is in " initial position " near the right side of elongated hole 221.

Right retainer 575 is configured in the right of the second movable body 523, the second movable body 523 abutted with right retainer 575 and Prevent further movement to the right.That is, right retainer 575 provides out the right end position of the movable range of the second movable body 523.

If the right for having prevented the second movable body 523 by the right retainer 575 is moved, by link gear 57 The right movement of first movable body 522 of linkage is also prevented.That is, right retainer 575 is it may be said that also provide out the first movable body The right end position of 522 movable range.

Cylinder 55 remembers the protrusion direction of plunger towards the state on right side in the left of the first movable body 522 by below The wrist 321 of the support frame 32 of the cloth travel mechanism 30 stated is supported (reference picture 7).

There are two flanges in the plunger arrangement form of cylinder 55, by plunger and the vertical plate part in the first movable body 522 Two flanges are utilized when the otch 522b of the semicircle shape of 522a formation links.That is, make the otch 522b of plunger and semicircle shape embedding When closing and linking, vertical plate part 522a is clipped using two flanges, thus, it is possible to which the action of the advance and retreat moving direction of plunger is transmitted To the first movable body 522.

As described above, the first movable body 522 vertical plate part 522a and cylinder 55 plunger turn into very easily link and The construction that can be pulled down

In addition, cylinder 55 is not supported by cloth pressing 20, its reason is that cloth pressing 20 is moved from the cloth described below The pedestal 31 of motivation structure 30 is kept with freely loading and unloading.That is, if cylinder 55 is supported on the side of cloth pressing 20, by cloth presser , it is necessary to supply installing/dismounting of the air hose relative to cylinder 55 of pressure-air when pin 20 is loaded and unloaded relative to pedestal 31, The handling operation of cloth pressing 20 becomes cumbersome.On the other hand, it is being set to by the structure of the collateral support cylinder 55 of cloth travel mechanism 30 In the case of making, it is desirable to be able to which plunger and the first movable body 522 to cylinder 55 are loaded and unloaded, as described above, turning into hold Change places and carry out the construction of these handling.

[cloth travel mechanism]

As shown in Fig. 2 cloth travel mechanism 30 possesses：Pedestal 31, it is supported to cloth pressing 20；Support frame 32, it is supported to the various structures described below；And X-axis motor 33 and Y-axis motor 34 (reference picture 10), they It is used as the driving source for making pedestal 31 move along the horizontal plane.

The arbitrary position that pedestal 31 can be moved on horizontal plane by be contained in base portion 101 it is inside, in X-axis The linear guide portion (omitting diagram) guided on direction and the linear guide portion guided in the Y-axis direction (save sketch map Show) support.In addition, pedestal 31 using X-axis motor 33 and Y-axis motor 34 as driving source, by the way that its revolving force is transformed to Shift action is applied in along the transmission mechanism (omitting diagram) for moving back and forth power of X-direction and Y direction.It is used as the transmission Mechanism can utilize transmission mechanism known to belt mechanism, ball screw framework or pinion and rack etc..

In addition, the fixed equipment of pedestal 31 has keep cloth pressing 20 clamp system 35 with freely loading and unloading.Such as Fig. 7 institutes Show, the clamp system 35 possesses：Support plate 351, it is formed with the projection with two boss-shapeds of foregoing cloth pressing 20 212nd, 212 chimeric recess 352,352；Clamping part 353,353, they are formed with the pawl kept, to cause and recess 352nd, the projection 212,212 of 352 chimeric cloth pressings 20 will not fall off；And cylinder 354,354, they are to passing through clamping section The hold mode and relieving state for the projection 212,212 that part 353,353 is realized are switched over.

If the projection 212,212 of cloth pressing 20 is chimeric with two recesses 352,352 of support plate 351, clamp The direction that mechanism 35 is kept by the driving of cylinder 354,354 to clamping part 353,353 is rotated.Thus, each projection 212nd, 212 clamped by recess 352,352 and clamping part 353,353, cloth pressing 20 is fixed relative to pedestal 31.

In addition, when separating cloth pressing 20, being kept by cylinder 354,354 to clamping part 353,353 Situation opposite side rotate.Thus, the structure that projection 212,212 is maintained to the inner side of recess 352,352 disappears, and can make Cloth pressing 20 is separated from pedestal 31.

As shown in figure 8, support frame 32 turns back to foregoing first the cylinder 55 of mechanism 50, second turn back mechanism 60 and guarantor Mechanism 80 is held to be supported.

The fixed equipment of support frame 32 is in the leading section of pedestal 31, positioned at the cloth pressing 20 kept by clamp system 35 Top.

The support frame 32 possess stretched out forwards from the both ends of X-direction along Y direction two wrists 321, 322。

Moreover, the support frame 32 is in the leading section of the wrist 321 in side (left side), it is supported by first and turns back mechanism 50 Cylinder 55.

In addition, at the wrist 322 of opposite side (right side), it is supported by second described below and turns back mechanism 60.

Also, it is supported by maintaining body 80 between two wrists 321,322.

[maintaining body]

As shown in figure 8, maintaining body 80 possesses：Two preceding left front pressure foots 81,81, they are being loaded into clamp system 35 Cloth pressing 20 elongated hole 221 the left and right sides near, from top to preceding left front cloth N carry out pressing holding；Support member 82nd, 82, they are individually supported to each preceding left front pressure foot 81,81；And cylinder 83,83, they are via supporting part Part 82,82 and left front pressure foot 81,81 is lifted before individually making.

Two preceding left front pressure foots 81,81 are strips, parallel with elongated hole 221 with the length with the same degree of elongated hole 221 Ground is configured.

Moreover, near the left and right sides of elongated hole 221, pressing holding is carried out to preceding left front cloth N from top, thus to The situation that left front cloth N vertically vibrates before making during sewing with moving up and down for suture needle is suppressed, and can be carried out good Sewing.

Only carrying out the situation of pin by suture needle reciprocating mechanism in addition, pressure foot 81,81 is special and passing through cutting knife Preceding left front cloth N is kept in the case of the formation joint-cutting of mechanism 40, in the case of in addition, with what is kept out of the way upward Mode controls cylinder 83,83, to cause the operation of turning back of left front cloth N before without prejudice to.

Support member 82,82 is so-called crank, and rotational action is applied in by cylinder 83,83.

Moreover, support member 82,82 is by carrying out rotational action, so that preceding left front pressure foot 81,81 is lifted.

[second turn back mechanism]

As shown in figure 8, the second mechanism 60 of turning back is wind pushing mechanism, the wind pushing mechanism will turn back mechanism 50 to the right by first The end for the preceding left front cloth N that side is turned back further is turned back to the left.

This second turn back mechanism 60 possess as wind pushing mechanism two air jetting nozzles 61,61 and to each air spray The supporter 62,62 that nozzle 61,61 is supported.Each air jetting nozzle 61,61 is cylindric, in the shape along Y direction The right side of the elongated hole 221 of cloth pressing 20 is configured under state.Moreover, each air jetting nozzle 61,61 is set along its length Multiple Air blowings mouthful (omitting diagram), the whole width range in preceding left front cloth N Y direction carries out empty towards left side The blowout of gas, further will can to the left be rolled over by the first end for turning back preceding left front cloth N that mechanism 50 turns back to the right Return.

In addition, if it is assumed that second mechanism 60 of turning back also is supported in the side of cloth pressing 20, then it is relative in cloth pressing 20 , it is necessary to supply installation of the air hose relative to each air jetting nozzle 61,61 of pressure-air when pedestal 31 is loaded and unloaded Dismounting, the handling operation of cloth pressing 20 becomes cumbersome.

Therefore, by the way that the second mechanism 60 of turning back is also disposed on into support frame 32, it is achieved thereby that the dress of cloth pressing 20 Unload the facilitation of operation.

[the 3rd turn back mechanism]

As shown in Fig. 2 and Fig. 9, the 3rd mechanism 65 of turning back possesses：It is used as (the reference picture of presser feet frame 66 of preceding left front cloth pressing 17), it is pressed preceding left front cloth N in the left side of the elongated hole 221 of cloth pressing 20 from top；It is used as the sky of wind pushing mechanism Gas blowout delivery nozzle 67,67, they are contained in the inner side of presser feet frame 66；Cylinder 68, it lifts presser feet frame 66；And Support bracket 69, it is supported to cylinder 68, and the screw of Support bracket 69 is anchored on the face 104 of sewing machine stand 100.

Cylinder 68 face 104 right part, by plunger downward in the state of supported by Support bracket 69.

Presser feet frame 66 is equipped with the bottom of plunger, left front cloth N before being obtained by the protrusion pressure of cylinder 68 Foot pressure.

Presser feet frame 66 is the framework along the rectangle of Y direction, and left surface and right flank are significantly open.Moreover, can lead to The bottom surface sections for crossing the presser feet frame 66 are pressed preceding left front cloth N.

In addition, containing two air jetting nozzles 67,67 in the inner side of presser feet frame 66.These air jetting nozzles 67, 67 be cylindric, and the inner side of presser feet frame 66 is being configured at along in the state of Y direction.Moreover, each air jetting nozzle 67,67 Multiple Air blowings mouthful (omitting diagram) are set along its length, and these Air blowings mouth carries out air towards right side and blown Go out (reference picture 17).

3rd turns back mechanism 65 according to said structure, can be entered by the right part of left front cloth N before 66 pairs of presser feet frame Row pressing, and preceding left front cloth N right part is turned back to the right by the air of air jetting nozzle 67,67.

[cutter mechanism]

As shown in Fig. 2 cutter mechanism 40 possesses the cutting knife (not shown) in bottom with sword and makes the cutting knife along upper Reciprocal drive mechanism down.

The left of cutting knife and suture needle is adjacent to configuration, when declining in preceding left front cloth N and clothing body cloth K formation joint-cuttings c.

Drive mechanism is by cutter driving motor 41 (reference picture 10) and the torque conversion by the cutter driving motor 41 The mapping devices such as the reciprocating crank mechanism for above and below are constituted.In addition, the driving source of the drive mechanism of cutting knife can also be Cylinder.

Moreover, in preceding left front cloth N and clothing body cloth K formation joint-cuttings, the elongated hole 221 of cloth pressing 20 is under cutting knife Fang Yidong, also, cloth pressing 20 is moved along Y direction, while moving up and down cutting knife, thus along Y direction Joint-cutting c is formed at preceding left front cloth N and clothing body cloth K.

[the control system of sewing machine：Control device]

Figure 10 is the block diagram for the control system for representing sewing machine 10.The control device 90 of sewing machine 10 possesses：ROM(Read Only Memory) 92, it stores the program for performing the action control in sewing；RAM(Random Access Memory) 93, it turns into the operating area of calculation process；It is used as non-volatile data storage that can be erasable of memory cell Device 94, it is stored to the various data such as stitch data；And CPU 91 (Central Processing Unit), it is held Program in row ROM 92.

In addition, CPU 91 drives via interface (not shown) with sewing machine electromotor drive circuit 15a, X-axis motor Circuit 33a, Y-axis motor drive circuit 34a, the 41a connections of cutter driving motor drive circuit, it is electromechanical to sewing via them Motivation 15, X-axis motor 33, Y-axis motor 34, the driving of cutter driving motor 41 are controlled.

Also, CPU 91 via interface (not shown) with for making the first cylinder 55, the second folding for turning back mechanism 50 The cylinder the 68, the 3rd that turns back mechanism 65 of air jetting nozzle the 61, the 3rd for going back to mechanism 60 turns back the air jetting nozzle of mechanism 65 67th, the cylinder 354 of clamp system 35, the cylinder 83 of maintaining body 80 work respectively magnetic valve 55a, 61a, 68a, 67a, Drive circuit 55b, 61b, 68b, 67b, 354b, 83b connection that 354a, 83a are controlled.

In addition, in sewing machine 10, the second air jetting nozzle the 61, the 3rd for turning back mechanism 60 turns back the air of mechanism 65 Jetting nozzle 67, the cylinder 354 of clamp system 35, the cylinder 83 of maintaining body 80, their magnetic valve 61a, 67a, 354a, 83a and their drive circuit 61b, 354b, 83b have two respectively, but only illustrate one in Fig. 10.

Record has cloth to feed data and sewing machine electromotor 15 and cutter driving motor 41 in data storage 94 Rotation number etc., cloth feed data in order to form the stitching n1 described below, n2, turn back stitching n11, n12 and joint-cutting c and For making the X-axis motor 33 of the movement of cloth pressing 20 and the cloth amount of feeding of Y-axis motor 34 be provided that CPU 91 exists During sewing, the setting content of data is read for each pin, the action control of each structure of sewing machine is performed.

In addition, being attached to the pedal switch 95 for carrying out sewing action in control device 90.

[preceding left front sewing action]

The flow chart of action specification figure and Figure 19 based on Figure 11~Figure 18 is to the front door realized by above-mentioned sewing machine 10 Flap sewing action is illustrated.

In addition, in Figure 11~Figure 18 action specification figure, eliminating the diagram of maintaining body 80 and support frame 32.

First, the setting operation before starting as sewing, by the cloth pressing 20 in the state of being separated from sewing machine 10 Upper plate 22 is opened, and clothing body cloth K is configured to the assigned position of the upper surface of lower plate 21.Then, upper plate 22 is closed, to clothing body Cloth K is clamped.

Also, the preceding left front folded plate 51 and auxiliary presser foot plate 53 on upper plate 22 are maintained at respectively by helical spring The starting position moved back and forth and initial position, therefore resist magnet 531 and lift auxiliary presser foot plate 53, with the formation of stitching Left front cloth N, auxiliary presser foot plate 53 is declined before the precalculated position mode consistent with the position of elongated hole 221 is configured.Now, with Left front cloth N before the mode of left front cloth N downside is configured before preceding left front folded plate 51 is hidden in.

Moreover, by the recess 352 of two projections 212,212 of cloth pressing 20 and the support plate 351 of clamp system 35, 352 are fitted together to, and turn back the cylinder 55 of mechanism 50 by first and the first movable body 522 links.

Initially, the first cylinder 55 for turning back mechanism 50 is in the state for retreating plunger, by plunger and in supporting mechanism 52 The first movable body 522 formation semicircle shape otch 522b link.

If moreover, pedal switch 95 is pressed, CPU 91 makes cylinder 354,354 by magnetic valve 354a, 354a Work, performs the holding (step S1) for the projection 212,212 realized by clamping part 353,353.

If next, pedal switch 95 is pressed, CPU 91 makes cylinder 83,83 works via magnetic valve 83a, 83a Make, left front pressure foot 81,81 declines and carried out in the left and right sides of elongated hole 221 preceding left front cloth N holding (step S3) before making.

If moreover, pedal switch 95 is pressed, CPU 91 X-axis motor 33, Y-axis motor 34 are controlled and Move cloth pressing 20, to cause the preceding left front cloth N rearward end and the central portion of X-direction that are kept by cloth pressing 20 Neighbouring sewing starting position is in the lower section (step S5, Figure 11) of suture needle.

Next, CPU 91 starts the driving of sewing machine electromotor 15, and to X-axis motor 33, Y-axis motor 34 It is controlled and forms the first stitching n1 and the second stitching n2 (step S7, Figure 12, [the first sewing control]).

Next, CPU 91 is by cylinder 83,83, left front pressure foot 81,81 rises and decontrols preceding left front cloth N before making (step S9).

Also, CPU 91 makes cylinder 55 work via magnetic valve 55a, make the front door for being located at the starting position moved back and forth The dipscrews spring 54 of flap folded plate 51 and it is mobile to the direction (right) of crossing elongated hole 221.Thus, a preceding left front cloth N left side End turns back the first stitching n1 as folding line to the right.Preceding left front folded plate 51 makes auxiliary presser foot plate by link gear 57 53 also move to the right, by right retainer 575, stop in the right part of respective movable range.Preceding left front folded plate 51 and auxiliary Pressing aid sole 53 stops (step S11, Figure 13, [first turn back control]) in the position that is separated to the right from preceding left front cloth N.

In addition, preceding left front folded plate 51 to the right when moving, the boss 561 of holding frame 521 is convex with cam mechanism 56 The cam part 562a of wheel plate 562 lower surface sliding contact, moved with the state being pressed downwards (reference picture 5 (A) and Fig. 5 (B)).Reliably folded along the first stitching n1 thereby, it is possible to left front cloth N before making.

Next, CPU 91 is by cylinder 83,83, before making again left front pressure foot 81,81 decline and to preceding left front cloth N Kept (step S13).

Moreover, CPU 91 is controlled to sewing machine electromotor 15, X-axis motor 33 and Y-axis motor 34 and by first The stitching n11 that turns back is formed at (step between the forming position of the joint-cutting of the first stitching n1 and cutter mechanism 40 (formation precalculated position) Rapid S15, Figure 14, [the second sewing control]).

Next, CPU 91 is by cylinder 83,83, left front pressure foot 81,81 rises and decontrols preceding left front cloth N before making (step S17).

Also, CPU 91 magnetic valve 61a is controlled and carry out from second turn back mechanism 60 air jetting nozzle 61, The ejection of 61 air to the left, preceding left front cloth N left part is turned back to the left using the first stitching n11 that turns back as folding line, And (step S19) is turned back into preceding left front cloth N right part to the left using the second stitching n2 as folding line.

Also, CPU 91 retreats the plunger of cylinder 55, the preceding left front folded plate 51 positioned at folded back position is set to be reset to back and forth Mobile starting position (step S21, Figure 15, [second turn back control]).In addition, preceding left front folded plate 51 is by link gear 57, Auxiliary presser foot plate 53 is set also to move to the left, by left retainer 574, in the left part of respective movable range, i.e. reciprocal to move Dynamic starting position and initial position stop.

In addition, preceding left front folded plate 51 to the left when moving, the boss 561 of holding frame 521 is convex with cam mechanism 56 The cam part 562a of wheel plate 562 upper surface slide contact, moved with the state boosted upward (reference picture 6 (A) and Fig. 6 (B)).Thereby, it is possible to respect to it is multiple turn back and be laminated, thickening preceding left front cloth N is not hooked, with suitable When foot pressure preceding left front cloth N is pressed.

Next, CPU 91 is by cylinder 83,83, before making again left front pressure foot 81,81 decline and to preceding left front cloth N Kept (step S23).

Moreover, CPU 91 is controlled to sewing machine electromotor 15, X-axis motor 33 and Y-axis motor 34 and by second The stitching n12 that turns back is formed between the forming position of the joint-cutting of cutter mechanism 40 (formation precalculated position) and the second stitching n2 (step Rapid S25, Figure 16, [the 3rd sewing control]).

Next, CPU 91 is by cylinder 83,83, left front pressure foot 81,81 rises and decontrols preceding left front cloth N before making (step S27).

Also, CPU 91 makes cylinder 55 work by magnetic valve 55a, make the front door for being located at the starting position moved back and forth Flap folded plate 51 and auxiliary presser foot plate 53 are moved again to the right part of movable range.Thus, preceding left front folded plate 51 and auxiliary presser foot Plate 53 stops (step S29) in the position separated to the right from preceding left front cloth N.

Next, CPU 91 is by cylinder 68, the 3rd presser feet frame 66 for turning back mechanism 65 is set to decline and from top to front door Flap cloth N is pressed.Now, cloth pressing 20 moves control by cloth travel mechanism 30, to be located to the left Position between the left part for the preceding left front cloth N that side is turned back and the preceding left front cloth N turned back to the left right part turns into pressure The down position of pin frame 66, can only be pressed preceding left front cloth N left part by the decline of presser feet frame 66.

Also, CPU 91 is controlled to magnetic valve 67a and entered from the 3rd air jetting nozzle 67,67 for turning back mechanism 65 The ejection of row air to the right, preceding left front cloth N right part is turned back to the right using the second stitching n12 that turns back as folding line (step S31, Figure 17, [the 3rd turn back control])

Next, CPU 91 is by cylinder 83,83, before making again left front pressure foot 81,81 decline and to preceding left front cloth N Kept (step S33).

Moreover, CPU 91 is controlled to X-axis motor 33 and Y-axis motor 34, make cloth pressing 20 to cutter mechanism 40 lower section movement.

Also, the driving of cutter driving motor 41 is started, and cloth pressing 20 is fed along Y direction, The one stitching n11 and second that turns back turns back between stitching n12 and forms joint-cutting c (step S35, Figure 18, [joint-cutting formation control]).

Then, CPU 91 is by cylinder 83,83, and left front pressure foot 81,81 rises and decontrols preceding left front cloth N before making (step S37), is decontroled the hold mode for the projection 212,212 realized by clamping part 353,353 by cylinder 354,354, The sewing action (step S39) of left front before terminating.

[technique effect]

Above-mentioned sewing machine 10 possesses：First turns back mechanism 50, and it turns back preceding left front cloth N along the first stitching n1；And Second turns back mechanism 60, and it turns back preceding left front cloth N along the second stitching n2, therefore, it is possible to being formed about in each folding line The sewing of left front before the mode of decorative thread (first and second turn back stitching n11, n12) is carried out, left front is abundant before coping with Colorful sewing.

In addition, sewing machine 10 can carry out the formation of the current decorative thread carried out by other processes or manual working, because This can quickly and efficiently carry out sewing operation.

In addition, the control device 90 of sewing machine 10 perform successively first sewing control, first turn back control, second sewing control System, second turn back control, the 3rd sewing control, first sewing control cloth travel mechanism 30 and suture needle reciprocating mechanism are entered Row control, forms the first stitching n1 and the second stitching n2, and the first control mechanism 50 of being turned back to first of turning back is controlled, by front door Flap cloth N is turned back along the first stitching n1, and the second sewing control is controlled to cloth travel mechanism 30 and suture needle reciprocating mechanism System, by first turn back preceding left front cloth N that mechanism 50 turns back the first stitching n1 and by cutting that cutter mechanism 40 is realized Stitch and form first between c forming position (formation precalculated position) and turn back stitching n11, the second control of turning back is turned back mechanism to second 60 are controlled, and preceding left front cloth N is turned back along the second stitching n2, and the 3rd sewing control is in cloth travel mechanism 30 and suture needle Lower travel mechanism is controlled, by second turn back preceding left front cloth N that mechanism 60 turns back the second stitching n2 and by cutting Second is formed between the forming position (formation precalculated position) for the joint-cutting that cutter mechanism is realized to turn back stitching n12.

Thereby, it is possible to the sewing for the preceding left front cloth that complexity is more efficiently carried out by easy structure.

In addition, sewing machine 10 possess by preceding left front cloth N along second turn back that stitching n12 turns back the 3rd turn back mechanism 65, Control device 90 performs the 3rd and turned back control and joint-cutting formation control successively, and the 3rd control mechanism 65 of being turned back to the 3rd of turning back is carried out Control, preceding left front cloth N is turned back along the second stitching n12 that turns back, and joint-cutting formation control is controlled to cutter mechanism 40, in clothing Forming position (formation precalculated position) the formation joint-cutting of body cloth K and preceding left front cloth N joint-cutting, therefore turned back stitching second After n12 is formed, when by the formation joint-cutting c of cutter mechanism 40, preceding left front cloth N can be avoided and without prejudice to cut-out operation, no Manual working is needed, can more efficiently be sewed.

In addition, the first of sewing machine 10 the mechanism 50 of turning back has：Preceding left front folded plate 51, it will be realized by cutter mechanism 40 Joint-cutting forming position cross and moved back and forth；As the cylinder 55 of actuator, it turns into the past of the preceding left front folded plate 51 At least unilateral mobile driving source moved again；And supporting mechanism 52, preceding left front folded plate 51 can be moved back and forth twelve Earthly Branches by it Support, preceding left front folded plate 51 is by the movement (movement in outlet) on direction that the plunger of cylinder 55 protrudes to the right by preceding left front Cloth N turns back along the first stitching n1, by the movement (movement in return road) on direction that the plunger of cylinder 55 is retreated to the left and From top to being pressed along the preceding left front cloth N that the second stitching n2 turns back, supporting mechanism 52 has cam mechanism 56, the cam The movement in the outlet of left front folded plate 51 is in the low position movement of the movement than return road before mechanism 56 makes.

Thus, even in carrying out and turn back to wait realizing and being laminated and thickness variation by the sewing with preceding left front cloth N In the case of, the pressing force of preceding left front folded plate 51 at appropriate heights, appropriate can be also pressed preceding left front cloth N, energy Enough carry out good sewing.

In addition, the first of sewing machine 10 the mechanism 50 of turning back possesses auxiliary presser foot plate 53, the auxiliary presser foot plate 53 is across passing through Cutter mechanism 40 realize joint-cutting forming position (formation precalculated position) and with the preceding left front positioned at the starting position moved back and forth Folded plate 51 is arranged as opposed to；Supporting mechanism 52 possesses link gear 57, and the link gear 57 will not pass through the reality of cutter mechanism 40 The scope that existing joint-cutting forming position (formation precalculated position) is crossed, makes auxiliary presser foot plate 53 and preceding left front folded plate 51 past in linkage It is multiple mobile.

Thus, it can be switched over by a cylinder 55 (actuator) to following two states, i.e.,：By preceding left front folded plate 51 and auxiliary presser foot plate 53 be separately configured at joint-cutting forming position (formation precalculated position) both sides state；And make front door The state that both flap folded plate 51 and auxiliary presser foot plate 53 are kept out of the way to the one side of joint-cutting forming position (formation precalculated position), Neng Goushi Now pass through the reduction of the manufacturing cost of sewing machine caused by the reduction of number of components.

In addition, the second of sewing machine 10 turns back mechanism 60 with the air jetting nozzle 61 as wind pushing mechanism, it is forward Left front cloth N blows.

Therefore, it is possible to the operation of turning back of left front cloth N before being realized by easy structure, in addition, can from preceding left front Cloth N separation position it is turned back, therefore second turn back mechanism 60 configuration it is freely high, sewing machine 10 can be realized The facilitation of design.

Also, air jetting nozzle 61 does not need institutional action, therefore, it is possible to realize reduction, the action of upkeep operation Reliability raising.

In addition, similarly, the 3rd mechanism 65 of turning back has：Presser feet frame 66, it is by down maneuver from top to front door Flap cloth N is pressed；And as the air jetting nozzle 67 of wind pushing mechanism, it is to the preceding left front for being equipped on the presser feet frame 66 Cloth N blows, therefore with being turned back the identical effect of mechanism 60 with second, and can carry out before being realized by presser feet frame 66 Left front cloth N pressing operation.

In addition, the 3rd overall structure for turning back mechanism 65 can be made to keep out of the way upward, therefore, it is possible to further improve the 3rd The configuration of mechanism of turning back 65 is freely.

In addition, sewing machine 10 can load and unload cloth pressing 20 relative to pedestal 31, therefore without around suture needle Clothing body cloth K, preceding left front cloth N are carried out in narrow zone relative to the installation exercise of cloth pressing 20, workability can be realized Raising.

In addition, the mechanism avoided passing through around suture needle causes damage, clothing body cloth K, preceding left front cloth N can be carried out Protection.

In addition, progress first is turned back, the cylinder 55 of the action of turning back of mechanism 50 is not supported by cloth pressing 20, but via Support frame 32 is supported by pedestal 31, thus need not be with cloth pressing 20 the associated cylinder 55 of handling and the dress of air hose Operation is unloaded, the raising of workability can be realized.

In addition, similarly, the second mechanism 60 of turning back is not supported by cloth pressing 20, but via support frame 32 by pedestal 31 supports, therefore the air jetting nozzle 61 and air of the mechanism 60 that need not be turned back with the handling associated second of cloth pressing 20 The handling operation of flexible pipe, can realize the raising of workability.

In addition, the 3rd mechanism 65 of turning back is also equipped with face 104 in sewing machine stand 100, therefore cylinder 68 and sky are not needed The handling operation of gas blowout delivery nozzle 67 and air hose, can realize the raising of workability.

[second embodiment]

By Figure 20 and Figure 21, to being illustrated as the sewing machine 10B of second embodiment.On sewing machine 10B, It will illustrate with the foregoing identical incomplete structure of sewing machine 10, the difference pair from sewing machine 10 is stressed.

As shown in figure 20, sewing machine 10B possesses hemming foot mechanism 110.The hemming foot mechanism 110 is filled by controlling 90 are put to be controlled.The cutting knife that hemming foot mechanism 110 is set via bracket 111 by the front end of the arm 103 in sewing machine 10B Mechanism 40 is supported.Hemming foot mechanism 110 has the supporting plate 112 fixed in bracket 111, and gas is fixed with the supporting plate 112 Cylinder 113.Cylinder 113 possesses bar 114, by the supply of air, bar 114 is retreated.Bar 114 is fixedly arranged at the front end with support member at it 115.In addition, being fixed with bootstrap block 116 in supporting plate 112, the bootstrap block 116 possesses guiding bar 117, and the guiding bar 117 can Slided along the bar 114 of cylinder 113.Support member 115 is fixed in the front end of guiding bar 117.Thus, support member 115 is not around bar 114 Axis is rotatably supported.Fastened in the screw of support member 115 and be fixed with support block 118, in the support block 118 detachably It is provided with hemming foot part 121.

As shown in figure 21, hemming foot part 121 possesses：Fixed block portion 122, it is fixed on support block 118；And presser feet Portion 123, it is supported in the lower end of the fixation block portion 122.Pressing part 123 possesses guiding plate portion 124 and presser feet plate portion 125, these Plate portion 124 and presser feet plate portion 125 is guided to be configured with adjacent state.Guide the bottom surface of plate portion 124 and the bottom surface of presser feet plate portion 125 Compared to configuration slightly below.Presser feet plate portion 125 is by the pretension such as spring part (omit and illustrate) downwards by pretension.

The one side of hemming foot part 121 is guided, while to preceding left front to the preceding left front cloth N flanging part d that turns back Cloth N is pressed.Plate portion 124 is guided to be rolled over from the preceding left front cloth N turned back the flanging part d that turn back left adjacent position edge Backrush edge d is configured.In addition, turn back flanging part d of the presser feet plate portion 125 on the preceding left front cloth N turned back adjacent position Configuration, is pressed preceding left front cloth N from top.Clearance G is provided between guiding plate portion 124 and presser feet plate portion 125, The clearance G configures the cloth pressing 12a of tubular, and cloth pressing 12a is set to suture needle 12 and the suture needle 12 surrounding (reference picture 20)。

Hemming foot mechanism 110 makes bar 114 retreat by cylinder 113, and thus hemming foot part 121 is passing through suture needle The vicinity of the sewing position for the cloth of the left front forward N sewings that the suture needle 12 of reciprocating mechanism is realized be hemming foot position and Moved between the retreating position left from the hemming foot position.

If moreover, stretched out bar 114 by the cylinder 113 of the hemming foot mechanism 110, hemming foot part 121 Hemming foot position is configured at, then the preceding left front cloth N flanging part d that turns back is directed plate portion 124 and guided, also, preceding left front cloth Material N fold back portion is pressed by presser feet plate portion 125.If in this condition by 12 pairs of the suture needle of suture needle reciprocating mechanism before Left front cloth N is sewed, then the tilting of preceding left front cloth N when sewing is suppressed, also, turn back flanging part d and stitching it Between width be that welt width degree W is maintained defined size.

In addition, the hemming foot mechanism 110 is relative to arm 103, can vertically, left and right directions and arm 103 Bearing of trend be fore-and-aft direction carry out position adjustment, by carrying out the position adjustment of the hemming foot mechanism 110, so as to The changing of reply welt width degree W, preceding left front cloth N thickness etc..

In addition, hemming foot mechanism 110 is changed by the way that hemming foot part 121 is loaded and unloaded, so as to tackle The changing of welt width degree W, preceding left front cloth N thickness etc..

Next, the control to the hemming foot mechanism 110 of the realizations of CPU 91 by control device 90 is illustrated.

CPU 91 is performed the first sewing control (the step S7 in Figure 19) of the first stitching n1 and the second stitching n2 formation, And performing first turning back control that preceding left front cloth N left part is turned back to the right by folding line of the first stitching n1 After (step S9, S11 in Figure 19), perform using hemming foot mechanism 110 the second sewing control (step S13 in Figure 19, S15)。

In the second sewing control, CPU 91 first by cylinder 83,83, before making left front pressure foot 81,81 decline and Preceding left front cloth N is kept (the step S13 in Figure 19).

Next, CPU 91 stretches out the bar 114 of the cylinder 113 of hemming foot mechanism 110, make the crimping pressure of retreating position Foot part 121 is configured at hemming foot position.Then, turned back first in control the preceding left front cloth N crimping that turns back that turns back Portion d is directed plate portion 124 and guided, and preceding left front cloth N fold back portion is pressed by presser feet plate portion 125.

Moreover, CPU 91 is controlled to sewing machine electromotor 15, X-axis motor 33 and Y-axis motor 34, in crimping pressure In the clearance G of foot part 121, by the suture needle 12 of suture needle reciprocating mechanism, first is turned back stitching in preceding left front cloth N N11 formation is between first and second stitching n1, n2, specifically, and formation is passing through the first stitching n1 and the shape of cutter mechanism 40 Into joint-cutting c forming position between (the step S15 in Figure 19).

Now, suppressed by the tilting of left front cloth N before 125 pairs of the presser feet plate portion of hemming foot part 121, and The flanging part d and first that turns back is turned back by the guiding plate portion 124 of hemming foot part 121 the width i.e. edge between stitching n11 Bar width W is maintained defined size.

As described above, the sewing machine 10B according to involved by second embodiment, by the preceding left front cloth N turned back folding Flanging part d is turned back when being sewed in backrush edge d neighbouring edge, can be by hemming foot mechanism 110, above and below by suture needle The sewing near sites that the suture needle 12 of travel mechanism is realized are pressed and guided to the preceding left front cloth N flanging part d that turns back.By This, when turning back to preceding left front cloth N formation first stitching n11, can make to turn back stitching n11 from the flanging part d to first that turns back Untill width be that welt width degree W is stably maintained defined size.Thereby, it is possible to the quality of the finished product of left front sewing before making Become good.

[other]

In addition, in sewing machine 10 or sewing machine 10B, the order of each operation of sewing can be changed suitably.

For example, joint-cutting c formation can also be carried out before stitching n1, n2 are formed.In addition, joint-cutting c formation can also be After stitching n1, n2 are formed, and carry out before along stitching n1, preceding left front cloth N is turned back.

In addition, as the first of sewing machine 10 turn back mechanism 50 actuator cylinder 55, using passing through air pressure The single-acting cylinder of the protrusion of plunger is supplied and carried out, and is retreated by the tension force of helical spring 54, but it is also possible to is made With protrusion, the cylinder of the double-lift retreated that plunger is carried out by air pressure.

Claims (9)

1. a kind of sewing machine, it possesses：

Cloth pressing, it keeps clothing body cloth and preceding left front cloth；

Cloth travel mechanism, it makes the cloth pressing arbitrarily be moved along the plane for loading the clothing body cloth；

Suture needle reciprocating mechanism, it is carried out to the clothing body cloth and the preceding left front cloth that are kept by the cloth pressing Fall pin；

Cutter mechanism, it is in the fixed direction of the clothing body cloth and the preceding left front cloth edge kept by the cloth pressing Form joint-cutting；And

Control device, it is to the cloth pressing, the cloth travel mechanism, the suture needle reciprocating mechanism and the cutting knife Mechanism is controlled,

The control device,

The cloth travel mechanism and the suture needle reciprocating mechanism are controlled, the first stitching and the second stitching is formed,

The cutter mechanism is controlled, joint-cutting is formed between first stitching and the second stitching,

The sewing machine is characterised by possessing：

First turns back mechanism, and it turns back the preceding left front cloth along first stitching；And

Second turns back mechanism, and it turns back the preceding left front cloth along second stitching.

2. sewing machine according to claim 1, it is characterised in that

The control device performs following controls successively, i.e.,：

First sewing control, is controlled to the cloth travel mechanism and the suture needle reciprocating mechanism, forms described the One stitching and second stitching；

First turns back control, and mechanism of being turned back to described first is controlled, the preceding left front cloth is rolled over along first stitching Return；

Second sewing control, is controlled to the cloth travel mechanism and the suture needle reciprocating mechanism, by described First stitching of first turns back preceding left front cloth that mechanism turns back and the formation for the joint-cutting realized by the cutter mechanism Between position, form first and turn back stitching；

Second turns back control, and mechanism of being turned back to described second is controlled, the preceding left front cloth is rolled over along second stitching Return；And

3rd sewing control, is controlled to the cloth travel mechanism and the suture needle reciprocating mechanism, by described Second stitching of second turns back preceding left front cloth that mechanism turns back and the formation for the joint-cutting realized by the cutter mechanism Between position, form second and turn back stitching.

3. sewing machine according to claim 2, it is characterised in that

Possess the 3rd to turn back mechanism, the 3rd mechanism of turning back turns back the preceding left front cloth along described second stitching that turns back,

The control device performs following controls successively, i.e.,：

3rd is turned back control, and mechanism of being turned back to the described 3rd is controlled, and the preceding left front cloth is turned back line along described second Mark turns back；And

Joint-cutting formation control, is controlled to the cutter mechanism, described in the clothing body cloth and the preceding left front cloth The forming position of joint-cutting, forms joint-cutting.

4. sewing machine according to claim 3, it is characterised in that

Described 3rd mechanism of turning back has：Preceding left front cloth pressing, it is by down maneuver from top to the preceding left front cloth Pressed；And wind pushing mechanism, it is equipped on the preceding left front cloth pressing, and the preceding left front cloth is blown.

5. sewing machine according to any one of claim 1 to 4, it is characterised in that

Described first mechanism of turning back possesses：Preceding left front folded plate, its cross by joint-cutting forming position that the cutter mechanism is realized and Moved back and forth；Actuator, it turns into the driving source of the movement of the preceding left front folded plate；And supporting mechanism, before it will be described Left front folded plate is supported in the way of it can carry out described move back and forth,

The preceding left front folded plate is turned back the preceding left front cloth along first stitching by the movement in outlet, passes through return road Movement and from top to being pressed along the preceding left front cloth that second stitching turns back,

The supporting mechanism has cam mechanism, and the cam mechanism makes the movement in the outlet of the preceding left front folded plate than institute State the low position movement of the movement in return road.

6. sewing machine according to claim 5, it is characterised in that

Described first mechanism of turning back possesses auxiliary presser foot plate, and the auxiliary presser foot plate is relative to positioned at the start bit moved back and forth The preceding left front folded plate put, is configured across by the joint-cutting forming position that the cutter mechanism is realized,

The supporting mechanism possesses link gear, and the link gear forms position not crossing the joint-cutting realized by the cutter mechanism The scope put, makes the auxiliary presser foot plate be moved back and forth in linkage with the preceding left front folded plate.

7. sewing machine according to any one of claim 1 to 4, it is characterised in that

Described second mechanism of turning back has wind pushing mechanism, and the wind pushing mechanism is blown to the preceding left front cloth.

8. sewing machine according to claim 5, it is characterised in that

Described second mechanism of turning back has wind pushing mechanism, and the wind pushing mechanism is blown to the preceding left front cloth.

9. sewing machine according to claim 6, it is characterised in that

Described second mechanism of turning back has wind pushing mechanism, and the wind pushing mechanism is blown to the preceding left front cloth.