CN202671832U

CN202671832U - Improvement structure of zipper stitching machine with double-layer teeth

Info

Publication number: CN202671832U
Application number: CN 201220303448
Authority: CN
Inventors: 彭沐勋
Original assignee: Xuantang Industrial & Commercial Co Ltd
Current assignee: Xuantang Industrial & Commercial Co Ltd
Priority date: 2012-06-25
Filing date: 2012-06-25
Publication date: 2013-01-16
Anticipated expiration: 2022-06-25

Abstract

The utility model aims at providing an improvement structure of a zipper stitching machine with double-layer teeth capable of reducing the generation rate of sutured substandard products. The technological means are that the improvement structure of the zipper stitching machine comprises a needle plate device and a sprocket drive conveyer, wherein the needle plate device is arranged inside the zipper stitching machine, can guide an upper chain, a lower chain, a left cotton tape and a right cotton tape and can pass through a suture needle of the zipper stitching machine to form a double-layer teeth zipper in a stitching manner; the sprocket drive conveyer is arranged inside the zipper stitching machine and outside the needle plate device, is synchronous with lifting stitching actions of the suture needle and moves forward and backward in a reciprocating manner; the needle plate device comprises a large needle plate, a chain locating block, a left adjusting component, and a right adjusting component; the sprocket drive conveyer comprises an upper sprocket drive conveyer and a lower sprocket drive conveyer; the large needle plate is respectively provided with lower slideways correspondingly to a first fixed distance plate and a second fixed distance plate of the lower sprocket drive conveyer, and a chain locating block is respectively provided with upper slideways correspondingly to the first fixed distance plate and the second fixed distance plate on the upper sprocket drive conveyer.

Description

Double-layered tooth zipper sewing structure-improved

Technical field

The utility model relates to a kind of double-layered tooth zipper sewing structure-improved, refers in particular to a kind of mechanical improvement structure of sewing up for Double-layer nylon slide fastener.

Background technology

The design of Double-layer nylon slide fastener is different from the design of general individual layer nylon zipper, and its structure is to be combined into by upper and lower layer sprocket and left and right strap sewing, so the anti-equal strength of its steadiness and tension all is better than the individual layer nylon zipper.

But traditional zipper sewing can only be used for the individual layer nylon zipper, only individual layer chain and left and right strap can be imported, and is processed to form the individual layer nylon zipper by the suture needle sewing again, can't be applied on the Double-layer nylon slide fastener.

So, just someone proposes such as patent documentation 1, TaiWan, China patent announcement M424791 number---" slide fastener double-layered tooth sewing needle plate structure ", a kind of slide fastener double-layered tooth sewing needle plate structure described in announcing on 03 21st, 2012 Christian era, can be fixed on the zipper sewing, import upper strata chain, lower floor's chain and left and right strap, and be processed to form the double-layered tooth slide fastener by the suture needle sewing of zipper sewing, it includes:

One large needle plate, be provided with a plurality of locating holes, be fixed in zipper sewing by locked assembly, before having, the rear to guide channel lower floor's chain can be imported after by forward direction, its front side also is provided with a plurality of inner bolt holes for connecting chain prelocalization piece on, and its nearly middle part has a groove, the a plurality of internal screw threads that are positioned at this groove be used for to connect on one locating piece behind the chain, the middle part of this groove is communicated with on one in addition, a left side, groove upper end is worn in wearing groove and being positioned at this of running through down, the depressed part of right both sides, and each depressed part has inner bolt hole and is used for connecting a little needle plate, the in addition left side of aforementioned grooves, right both sides also have a plurality of positioning screw holes and are used for connecting a dividing plate and two adjustment blocks;

Chain prelocalization piece on one, arranged on left and right sides has locating hole is connected in respectively large needle plate by locked assembly top, front side, the top has a guide channel and is used for the upper strata chain and imports after by forward direction in the middle of it, and its bottom has parting bead and the guide groove that is positioned at the parting bead arranged on left and right sides in the middle of being positioned at and is used for left and right strap and imports after by forward direction;

One little needle plate, has a body corresponding to the groove of wearing that embeds large needle plate, the guide groove that this body has a front and rear direction is used for lower floor's chain importing, and the respectively corresponding depressed part of wearing groove upper end arranged on left and right sides against large needle plate of fixation wall is respectively extended in the arranged on left and right sides of this body top, the fixation wall of aforementioned body arranged on left and right sides has locating hole and is connected and fixed by locked assembly and large needle plate, and the body of this little needle plate has the two upper and lower needle trays that run through and can allow the suture needle of zipper sewing pass in addition;

One dividing plate, arranged on left and right sides respectively is provided with the horizontal microscler groove of wearing, and inclined to one side rear has the groove of running through in the middle of it, and middle the place ahead has parting bead for separating left and right strap, this dividing plate is placed into the groove in large needle plate, and by locked assembly this dividing plate, two adjustment blocks and aforesaid large needle plate are connected and fixed respectively, this dividing plate is also established a plurality of perforation in addition;

Two adjustment blocks are connected to the arranged on left and right sides of little needle plate, have respectively horizontal elongate slots, and have respectively guide groove in its bottom and be used for importing left and right strap; Locating piece behind the chain on one, being provided with a plurality of locating holes is connected and fixed with the set internal screw thread of large needle plate hole by the perforation that locked assembly wears this aforementioned locating hole and dividing plate respectively again, before upward locating piece also is provided with one behind the chain, the rear is used for the upper strata chain to the guide channel that runs through and imports after by forward direction, and before the bottom of locating piece also is provided with one behind this upper chain, the rear is to the guide groove that runs through, this guide groove also is communicated with aforementioned guide channel, by this aforementioned guide groove with a left side, right strap imports, moreover, upward locating piece is provided with behind the chain, the perforation that runs through down can allow the suture needle of zipper sewing pass, in addition the left side of locating piece behind this upper chain, right both sides have the short slot that runs through can avoid the aforementioned large needle plate left side that is connected in, the adjustment block of right both sides.

Though above-mentioned double-layered tooth zipper sewing can solve the problem that old-fashioned zipper sewing can't processing double-layer tooth slide fastener, but the upper and lower layer chain that can be subject to the double-layered tooth slide fastener affects, add man-hour at the suture needle sewing, the sprocket exactitude position that needs upper and lower layer chain, otherwise easily cause the car pin to rupture, the variety of problems such as the sprocket sewing is crooked or do not align up and down occur, cause that double-deck sprocket finished product is not attractive in appearance, defect rate increases, cause the problems such as slide fastener unit price raising, have influence on widely the application of Double-layer nylon slide fastener.

In view of this, how to provide pair of lamina tooth zipper sewing structure-improved, solve and sew up the higher problem of substandard products generation rate, just become the improved purpose of the utility model wish.

The utility model content

The utility model purpose is to provide a kind of can reduce the double-layered tooth zipper sewing structure-improved of sewing up the substandard products generation rate.

For solving foregoing problems and reach the purpose of this utility model, technological means of the present utility model, it is a kind of double-layered tooth zipper sewing structure-improved, it is characterized in that comprising:

One is located in the zipper sewing, be used for importing upper strata chain, lower floor's chain and left and right strap, and can be by the suture needle of zipper sewing, sewing is processed to form the needle board device of double-layered tooth slide fastener;

One is located in the zipper sewing, is positioned at outside this needle board device, and makes action synchronously with the ascending, descending of suture needle, and the sprocket of implementing reciprocating type forward and backward action drives and send device;

Above-mentioned needle board device comprises: the chain locating piece, that a large needle plate, is located at this large needle plate top end face place is located at left adjustment assembly, and the right adjustment assembly of being located at place, right side between this large needle plate and the slide fastener locating piece at place, left side between this large needle plate and the slide fastener locating piece;

Above-mentioned left and right adjustment assembly comprises: an end activity is embedded at a strap adjustment block in this large needle plate respective side place, and the adjustment screw rod that is spirally connected with this large needle plate respective side place;

Above-mentioned sprocket drives and send device, comprising: a upper sprocket of being located at this chain locating piece top end face place drive send device, and a lower sprocket of being located at this large needle plate bottom face place drive and send device.

According to above-mentioned double-layered tooth zipper sewing structure-improved, described upper and lower sprocket drives and send device, comprises that one can make action synchronously with the ascending, descending of this suture needle, implements the feeding crank of reciprocating type forward and backward action; Reach one first distance plate, a spacer block, one second distance plate that sequentially are set in parallel in this feeding crank one end place;

One lateral edges place of the contiguous needle board device of aforementioned first, second distance plate is respectively equipped with a pectination projection with fluting of a plurality of mutual same pitch, and the width of this pitch, equals at least one times wide of tooth pitch of upper strata, lower floor's chain sprocket;

This large needle plate drives first, second distance plate place that send device corresponding to this time sprocket, be respectively equipped with the glide path that passes this bottom left, bottom right guide channel;

This chain locating piece drives first, second distance plate place that send device corresponding to sprocket on this, be respectively equipped with to pass that this is upper left, the sliding way of upper right guide channel.

According to above-mentioned double-layered tooth zipper sewing structure-improved, the end face of described large needle plate, direction is from high to low skewed setting from front to back, and turn level in the end, form a guide chain platform, central authorities have bottom left, the bottom right guide channel that front and rear direction takes the shape of the letter U, and lower floor's chain can be imported after by forward direction;

One end place of above-mentioned bottom left, contiguous this guide chain platform of bottom right guide channel, be provided with one upper and lower run through wear groove, and be positioned at the lower recess section that this wears groove upper end arranged on left and right sides, and this each lower recess section has respectively at least one lower inner bolt hole, this wears a side of contiguous this guide chain platform of groove, corresponding to this bottom left, bottom right guide channel place, being provided with a guide chain that takes the shape of the letter U leads the way, and the top end face place of this bottom left, bottom right guide channel, be installed with a lower cover, and this wears groove and lower recess section place, and correspondence is provided with a lower little needle plate that is spirally connected and locates by this time inner bolt hole;

This chain locating piece, its bottom surface is provided with the strap guide groove can be with a left side, right strap imports after by forward direction, corresponding to above-mentioned bottom left, bottom right guide channel place, before having, the rear is upper left to what take the shape of the letter U, upper right guide channel, import after allowing the upper strata chain by forward direction, this is upper left, upper right guide channel is worn the groove place corresponding to this, be provided with a groove, this groove upper end is left, right both sides, has respectively depressed part on, and sunk part does not have at least one upper inner bolt hole on this each, and this is upper left, the top end face place of upper right guide channel is installed with a upper cover plate, and this upper cover plate bottom surface convexes with and can separate a left side, the sliver that right strap is used, and this groove and upper depressed part place, correspondence be provided with one by inner bolt hole on this be spirally connected the location upper little needle plate;

Be somebody's turn to do upper little needle plate, it is provided with the upper guiding road that is shape of reverse omega corresponding to this upper left, upper right guide channel place, and has respectively the upper suture needle hole that can allow this suture needle group pass;

The little needle plate of this time, it is provided with the lower guiding road that is shape of reverse omega corresponding to this bottom left, bottom right guide channel place, and has respectively the lower suture needle hole that can allow this suture needle group pass;

This chain locating piece, it is respectively equipped with a suture needle hole corresponding to place, suture needle hole on this each;

According to above-mentioned double-layered tooth zipper sewing structure-improved, described left and right adjustment assembly comprises that an end activity is embedded at a strap adjustment block in this large needle plate respective side place, and the adjustment screw rod that is spirally connected with this large needle plate respective side place;

This strap adjustment block be not embedded at a end in this large needle plate respective side place, its contiguous this adjustments screw rod a side place, be provided with a location and slot, this adjustment screw rod includes a screw rod, an and adjustment fixture block that is located on this screw rod and slots corresponding to this location, this strap adjustment block activity is embedded at the end place in this large needle plate respective side place, has one to protrude from this large needle plate top surface, can be used for adjust the L shaped block that the strap position is used.

According to above-mentioned double-layered tooth zipper sewing structure-improved, described upper sprocket drives the feeding crank that send device, is adjustable crank, comprises a L shaped pole, an and lateral strut that vertically is fixed at this L shaped pole one end place;

Aforementioned L shaped pole, the junction of itself and this lateral strut, also be provided with a fine adjustment screw perpendicular to this lateral strut, an and set screw that is coupling with this lateral strut, and this L shaped pole is corresponding to aforementioned set screw place, also is provided with a pole fluting that can be used for this set screw running fix, an and pole chute that can be used for this lateral strut link slip.

According to above-mentioned double-layered tooth zipper sewing structure-improved, described the first distance plate, spacer block, and the second distance plate, by a locking that is positioned at the fixed screw of central authorities, and be located at respectively these fixed screw both sides two steady pins place the location, be arranged at an end place of this feeding crank.

According to above-mentioned double-layered tooth zipper sewing structure-improved, described strap adjustment block, it is embedded in the end place in this large needle plate respective side place, also is provided with a limit sliding chutes;

And described large needle plate, it also is inserted with one and can be used for avoiding this strap adjustment block to break away from the spacer pin that this large needle plate is used corresponding to aforementioned limit sliding chutes place.

According to above-mentioned double-layered tooth zipper sewing structure-improved, described large needle plate, it also is concaved with respectively an accommodating chute corresponding to this each strap adjustment block place, and the place that is spirally connected of this large needle plate and this adjustment screw rod is respectively equipped with a fixed block, reaches an interior spiral shell through hole;

And described chain locating piece, it is corresponding to aforementioned each fixed block place, be respectively equipped with a fixedly fluting that can cooperate with this fixed block, and this chain locating piece is corresponding to aforementioned spiral shell through hole one side place in each, is respectively equipped with an accommodating conduit of can accommodating this adjustment screw rod protruding end using.

According to above-mentioned double-layered tooth zipper sewing structure-improved, described large needle plate, it is skewed bottom face place, also convexes with the projection that a bottom surface has a datum plane;

And described guide chain platform, its bottom face is relative with aforementioned datum plane, also is provided with a locating convex block that protrudes from the bottom surface.

According to above-mentioned double-layered tooth zipper sewing structure-improved, described projection, the side place that it is adjacent to this guide chain platform also is provided with a location card article.

Compared with prior art, effect of the present utility model:

1. in the utility model, by the large needle plate that tilts, cooperate the guide chain platform, can effectively transmit upper strata chain, lower floor's chain and left and right strap, be not easy to occur the problem of card machine, allow fault rate reduce.

2. in the utility model, by the application of upper little needle plate and lower little needle plate, can be convenient to adjust and replacing, modular design allows sewing machine be convenient to use.

3. in the utility model, drive the application of sending device by upper and lower sprocket, solve at one stroke the coarse problem of sewing, drive by upper and lower sprocket and to send device, stablize accurate and efficient conveying upper strata chain and lower floor's chain, reach the effect that accurately matches and align, allow sewing machine when work can be correct sewing, solve the too high problem of bad defect rate, simultaneously, more can also essence improve the dilatory defective of driving the tooth pitch inequality that causes when sending nylon coiled strand tooth row of former sewing machine.

4. in the utility model, by the application of the left and right adjustment assembly of this kind, adjust more conveniently, can effectively corresponding different left and right cloth bring and processes, effectively shorten the man-hour that the operator is adjusting board and consumes.

5. in the utility model, by large needle plate, chain locating piece, left adjustment assembly, and the cooperation of right adjustment assembly, allow more modularization of single unit system, more easily assemble, produce and safeguard, increase industry applications of the present utility model.

Description of drawings

Fig. 1: schematic perspective view of the present utility model.

Fig. 2: perspective exploded view of the present utility model.

Fig. 3: the perspective exploded view at another visual angle of the utility model.

Fig. 4: the perspective exploded view of the large needle plate of the utility model.

Fig. 5: the perspective exploded view at another visual angle of the large needle plate of the utility model.

Fig. 6: the perspective exploded view of the utility model chain locating piece.

Fig. 7: the perspective exploded view at another visual angle of the utility model chain locating piece.

Fig. 8: the utility model sprocket drives the perspective exploded view of sending device.

Fig. 9: the utility model sprocket drives the enforcement schematic diagram that send device.

Figure 10: enforcement schematic diagram of the present utility model.

Description of drawings

1 needle board device, 124 grooves, 23 feeding cranks

Depressed part 231 L shaped poles on the 11 large needle plates 125

Inner bolt hole 232 lateral strut on the 111 guide chain platforms 126

1111 locating convex blocks, 127 upper cover plates, 233 fine adjustment screws

112 bottom left guide channels, 1271 slivers, 234 set screws

Little needle plate 235 poles fluting on the 113 bottom right guide channels 128

114 wear guiding road 236 pole chutes on the groove 1281

Suture needle hole 24 first distance plates in the 115 lower recess sections 1282

116 times inner bolt hole 129 suture needle holes 25 spacer blocks

The 117 guide chains fixing fluting of 12A 26 second distance plates of leading the way

The accommodating conduit 27 pectination projections of 118 lower cover 12B

119 times little needle plate 13 left adjustment assembly 271 flutings

1191 times guiding road 14 right adjustment assembly 28 fixed screws

1192 times suture needle hole 15 strap adjustment blocks, 29 steady pins

The accommodating chute 151 location fluting 10 upper strata chains of 11A

11B fixed block 152 L shaped block 20 lower floor's chains

Spiral shell through hole 153 limit sliding chutes 30 left straps in the 11C

11D datum plane 154 spacer pins 40 right straps

11E projection 16 is adjusted screw rod 100 double-layered tooth slide fasteners

11F location card article 161 screw rod A glide paths

12 chain locating pieces 162 are adjusted fixture block B sliding way

121 strap guide grooves, 2 sprockets drive and send device D tooth pitch

Sprocket drives and send device P pitch on the 122 upper left guide channels 21

22 times sprockets of 123 upper right guide channels drive and send device

The specific embodiment

The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.

Followingly be described in detail as follows according to the embodiment shown in the drawing:

Be illustrated in figure 1 as schematic perspective view of the present utility model, be illustrated in figure 2 as perspective exploded view of the present utility model, be illustrated in figure 3 as the perspective exploded view at another visual angle of the utility model, be illustrated in figure 4 as the perspective exploded view of the large needle plate of the utility model, be illustrated in figure 5 as the perspective exploded view at another visual angle of the large needle plate of the utility model, be illustrated in figure 6 as the perspective exploded view of the utility model chain locating piece, be illustrated in figure 7 as the perspective exploded view at another visual angle of the utility model chain locating piece, be illustrated in figure 8 as the utility model sprocket and drive the perspective exploded view of sending device, being illustrated in figure 9 as the utility model sprocket and driving the enforcement schematic diagram that send device, is enforcement schematic diagram of the present utility model as shown in figure 10.

Disclose a kind of double-layered tooth zipper sewing structure-improved in graphic, it comprises:

One is located in the zipper sewing, is used for importing upper strata chain 10, lower floor's chain 20 and left and

right strap

30,40, and can be processed to form by suture needle 3, the sewing of zipper sewing the needle board device 1 of double-layered tooth slide fastener 100;

One is located in the zipper sewing, is positioned at outside this needle board device 1, and makes action synchronously with the ascending, descending of suture needle 3, and the sprocket of implementing reciprocating type forward and backward action drives and send device 2;

Above-mentioned needle board device 1 comprises: the chain locating piece 12, that a large needle plate 11, is located at these large needle plate 11 top end face places is located at left adjustment assembly 13, and the right adjustment assembly 14 of being located at place, right side between this large needle plate 11 and the slide fastener locating piece 12 at place, left side between this large needle plate 11 and the slide fastener locating piece 12;

Above-mentioned left and

right adjustment assembly

13,14 comprises: an end activity is embedded at a strap adjustment block 15 in these large needle plate 11 respective side places, and the adjustment screw rod 16 that is spirally connected with these large needle plate 11 respective side places;

Above-mentioned sprocket drives and send device 2, comprising: a upper sprocket of being located at these chain locating piece 12 top end face places drive send device 21, and a lower sprocket of being located at these large needle plate 11 bottom face places drive and send device 22.

In above-mentioned, described upper and lower sprocket drives and send

device

21,22, comprising:

One can make action with the ascending, descending of this suture needle 3 is synchronously, implements the feeding crank 23 of reciprocating type forward and backward action;

Sequentially be set in parallel in one first distance plate 24, a spacer block 25, one second distance plate 26 at these feeding crank 23 1 end places;

One lateral edges place of aforementioned first,

second distance plate

24,26 contiguous needle board devices 1, be respectively equipped with one and have a plurality of the each other pectination projections 27 of the fluting 271 of same pitch P, and the width of this pitch P equals at least one times wide of tooth pitch D of upper strata, lower floor's chain 10,20 sprockets;

This large needle plate 11 drives first,

second distance plate

24,26 places that send device 22 corresponding to this time sprocket, be respectively equipped with to pass this bottom left, bottom right guide channel 112,113 glide path A;

This chain locating piece 12 drives first,

second distance plate

24,26 places that send device 21 corresponding to sprocket on this, be respectively equipped with to pass this upper left, upper right guide channel 122,123 sliding way B.

In above-mentioned again, the end face of described large needle plate 11, direction is from high to low skewed setting from front to back, and turns level in the end, forms a guide chain platform 111, central authorities have bottom left, the bottom right guide channel 112,113 that front and rear direction takes the shape of the letter U, can be with lower floor's chain 20 by importing behind the forward direction;

Above-mentioned bottom left, bottom right guide channel 112, one end place of 113 contiguous these guide chain platforms 111, be provided with on one, what run through down wears groove 114, and being positioned at this, to wear groove 114 upper ends left, the lower recess section 115 of right both sides, and this each lower recess section 115 has respectively at least one lower inner bolt hole 116, this wears a side of groove 114 contiguous these guide chain platforms 111, corresponding to this bottom left, bottom right guide channel 112,113 places, be provided with a guide chain that takes the shape of the letter U and lead the way 117, and this bottom left, bottom right guide channel 112,113 top end face place, be installed with a lower cover 118, and this wears groove 114 and lower recess section 115 places, correspondence be provided with one by this time inner bolt hole 116 be spirally connected the location lower little needle plate 119;

This chain locating piece 12, its bottom surface is provided with strap guide groove 121 can be with a left side,

right strap

30,40 by importing behind the forward direction, corresponding to above-mentioned bottom left, bottom right guide channel 112,113 places, before having, the rear is upper left to what take the shape of the letter U, upper right guide channel 122,123, can allow upper strata chain 10 by importing behind the forward direction, this is upper left, upper right guide channel 122,123 wear groove 114 places corresponding to this, be provided with a groove 124, these groove 124 upper ends are left, right both sides, has respectively depressed part 125 on, and depressed part 125 has respectively at least one upper inner bolt hole 126 on this each, and this is upper left, upper right guide channel 122,123 top end face place, be installed with a upper cover plate 127, these upper cover plate 127 bottom surfaces convex with and can separate a left side, right strap 30, the sliver 1271 of 40 usefulness, and this groove 124 and upper depressed part 125 places, correspondence be provided with one by inner bolt hole on this 126 be spirally connected the location upper little needle plate 128;

Be somebody's turn to do upper little needle plate 128, it is provided with the upper guiding road 1281 that is shape of reverse omega corresponding to this upper left, upper right guide channel 122,123 places, and has respectively the upper suture needle hole 1282 that can allow this suture needle group 3 pass;

The little needle plate 119 of this time, it is provided with the lower guiding road 1191 that is shape of reverse omega corresponding to this bottom left, bottom right guide channel 112,113 places, and has respectively the lower suture needle hole 1192 that can allow this suture needle group 3 pass;

This chain locating piece 12, it is respectively equipped with a suture needle hole 129 corresponding to 1282 places, suture needle hole on this each.

Wherein, by the large needle plate 11 of this kind, chain locating piece 12 and a left side,

right adjustment assembly

13,14 application, can be effectively and guide smoothly upper strata chain 10, lower floor's chain 20 is with left,

right strap

30,40, avoid producing each other interference, allow sprocket drive and send device 2 to operate normally, make suture needle 3 be processed to form out double-layered tooth slide fastener 100 by correct sewing, integral installation is set to modularization, more easily assembling, produce and maintenance, increase industry applications of the present utility model, and cooperate the application of upper little needle plate 128 and lower little needle plate 119, can be convenient to adjust and change, modular design allows sewing machine be convenient to use.

Secondly, utilize the large needle plate 11 of inclination, cooperate guide chain platform 111, not only can effectively carry upper strata chain 10, lower floor's chain 20 and left and

right strap

30,40, also be not easy to occur the problem of card machine, allow whole fault rate reduce.

Again, drive by upper and lower sprocket and to send

device

21,22 application, solve at one stroke the coarse problem of sewing, drive by upper and lower sprocket and to send

device

21,22, stablize accurate and efficient conveying upper strata chain 10 and lower floor's chain 20, reach the effect that accurately matches and align, allow sewing machine when work can be correct sewing, solve the too high problem of defect rate, simultaneously, can also essence improve the dilatory defective of driving the tooth pitch inequality that causes when sending nylon coiled strand tooth row of former sewing machine.

In above-mentioned, described left and

right adjustment assembly

This strap adjustment block 15 be not embedded at a end in these large needle plate 11 respective side places, its contiguous this adjustments screw rod 16 a side place, be provided with a location and slot 151, this adjustment screw rod 16 includes a screw rod 161, and one is located on this screw rod 161 and corresponding to slot 151 adjustment fixture block 162 of this location, these strap adjustment block 15 activities are embedded at the end place in these large needle plate 11 respective side places, have one to protrude from these large needle plate 11 end faces, can be used for adjust the L shaped block 152 that the strap position is used.

Wherein, by the left and right adjustment assembly 13 of this kind, 14 application, adjust more conveniently, can process by effectively corresponding different left and

right strap

30,40, effectively shorten the man-hour that the operator is adjusting board and consumes.

In above-mentioned, described upper sprocket drives the feeding crank 23 that send device 21, is adjustable crank, comprises a L shaped

pole

231, and 232 of lateral strut that vertically are fixed at these L shaped pole 231 1 end places;

Aforementioned L shaped pole 231, the junction of itself and this lateral strut 232, also be provided with a fine adjustment screw 233 perpendicular to this lateral strut 232, an and set screw 234 that is coupling with this lateral strut 232, and this L shaped pole 231 is corresponding to aforementioned set screw 234 places, also is provided with a pole fluting 235 that can be used for these set screw 234 running fixes, an and pole chute 236 that can be used for this lateral strut 232 links slip.

Wherein, the application of the feeding crank 23 by the adjustable crank of this kind, L shaped pole 231 and lateral strut 232 can provide strong support, and utilize cooperating of fine adjustment screw 233 and set screw 234, through the guiding of pole fluting 235 and pole chute 236, convenient operation person adjusts.

In above-mentioned, described the first distance plate 24, spacer block 25, and the second distance plate 26, by a locking that is positioned at the fixed screw 28 of central authorities, and be located at respectively these fixed screw 28 both sides two steady pins 29 place the location, be arranged at an end place of this feeding crank 23.

Wherein, by cooperating of fixed screw 28 and steady pin 29, allow upper and lower sprocket drive and send

device

21,22, drive upper strata chain 10 and lower floor's chain 20 that can be effective and strong be not easy distortion or loosening, and affect the running of device.

In above-mentioned, described strap adjustment block 15, it is embedded in the end place in these large needle plate 11 respective side places, also is provided with a limit sliding chutes 153;

And described large needle plate 11, it also is inserted with one and can be used for avoiding this strap adjustment block 15 to break away from the spacer pin 154 of these large needle plate 11 usefulness corresponding to aforementioned limit sliding chutes 153 places.

Wherein, by cooperating of limit sliding chutes 153 and spacer pin 154, allow strap adjustment block 15, can not break away from because of excessive outer moving this large needle plate 11, reach an effective position-limiting action.

In above-mentioned, described large needle plate 11, it also is concaved with respectively an accommodating chute 11A corresponding to these each strap adjustment block 15 places, and the place that is spirally connected of this large needle plate 11 and this adjustment screw rod 16 is respectively equipped with a fixed block 11B, reaches an interior spiral shell through hole 11C;

And described chain locating piece 12, it is corresponding to aforementioned each fixed block 11B place, be respectively equipped with a fixing fluting 12A that can cooperate with this fixed block 11B, and this chain locating piece 12 is corresponding to aforementioned spiral shell through hole 11C one side place in each, is respectively equipped with an accommodating conduit 12B who can accommodating these adjustment screw rod 16 protruding ends uses.

Wherein, by this kind set-up mode, allow each strap adjustment block 15 with adjust screw rod 16, firm support and location are arranged, the energy smooth operation reduces the possibility of rocking when work, and makes left and right adjustment assembly 13, the stable location of 14 energy, can in the sewing machine operation, not be moved, and cause defect rate to rise.

In above-mentioned, described large needle plate 11, it is skewed bottom face place, also convexes with the projection 11E that a bottom surface has a datum plane 11D;

And described guide chain platform 111, its bottom face is relative with aforementioned datum plane 11D, also is provided with a locating convex block 1111 that protrudes from the bottom surface.

Wherein, by the setting of projection 11E, allow being arranged on the sewing machine that large needle plate 11 can be more stable, more difficult rocking, and utilize the setting of datum plane 11D, and allow the user more easily set benchmark, setting is installed.

Secondly, this kind setting by guide chain platform 111 can be conducive to guide chain, and utilizes this locating convex block 1111, allow guide chain platform 111 can be more firm with the sewing machine fit applications.

In above-mentioned, described projection 11E, the side place that it is adjacent to this guide chain platform 111 also is provided with a location card article 11F.

Wherein, by the setting of location card article 11F, convenient installation of the present utility model can more easily be located.

Can learn thus, the utility model is by the application of needle board device 1, effectively guide upper strata chain 10, lower floor's chain 20 and left and

right strap

30,40, and drive the use of sending device 2 by sprocket, and realize that upper strata, lower floor's chain 10,20 smooth and easy driving send, reach the target of accurately making, at one stroke solve double-layered tooth slide fastener 100 defect rates too high, the problem of economy deficiency compared to patent documentation 1, has more industry applications, effect and practicality.

Embodiment shown in above foundation is graphic describes structure of the present utility model, feature and action effect in detail, owing to meeting novelty and progressive important document, satisfies the whence and proposes utility application in accordance with the law; Only the above only is preferred embodiment of the present utility model, but the utility model does not limit practical range with shown in the drawing, therefore the modified that such as conforms to the utility model intention changes, and belongs in the utility model claim as long as all should contain in impartial scope.

Claims

1. double-layered tooth zipper sewing structure-improved is characterized in that comprising:

One is located in the zipper sewing, be used for importing upper strata chain (10), lower floor's chain (20) and left and right strap (30,40), and can be by the suture needle (3) of zipper sewing, sewing is processed to form the needle board device (1) of double-layered tooth slide fastener (100);

One is located in the zipper sewing, is positioned at outside this needle board device (1), and makes action synchronously with the ascending, descending of suture needle (3), and the sprocket of implementing reciprocating type forward and backward action drives and send device (2);

Above-mentioned needle board device (1) comprising: the chain locating piece (12), that a large needle plate (11), is located at this large needle plate (11) top end face place be located at place, left side between this large needle plate (11) and the slide fastener locating piece (12) left adjustment assembly (13), and one be located at the right adjustment assembly (14) that the right side is located between this large needle plate (11) and the slide fastener locating piece (12);

Above-mentioned left and right adjustment assembly (13,14) comprising: an end activity is embedded at a strap adjustment block (15) in this large needle plate (11) respective side place, and the adjustment screw rod (16) that is spirally connected with this large needle plate (11) respective side place;

Above-mentioned sprocket drives and send device (2), comprising: a upper sprocket of being located at this chain locating piece (12) top end face place drive send device (21), and a lower sprocket of being located at this large needle plate (11) bottom face place drive and send device (22).

2. double-layered tooth zipper sewing structure-improved as claimed in claim 1, it is characterized in that: described upper and lower sprocket drives and send device (21,22), comprising:

One can make action synchronously with the ascending, descending of this suture needle (3), implements the feeding crank (23) of reciprocating type forward and backward action;

Sequentially be set in parallel in one first distance plate (24), a spacer block (25), one second distance plate (26) at these feeding crank (23) one end places;

One lateral edges place of the contiguous needle board device of aforementioned first, second distance plate (24,26) (1), be respectively equipped with a pectination projection (27) with fluting (271) of a plurality of mutual same pitch (P), and the width of this pitch (P) equals at least one times wide of tooth pitch (D) of upper strata, lower floor's chain (10,20) sprocket;

This large needle plate (11) drives first, second distance plate (24,26) that send device (22) corresponding to this time sprocket and locates, and is respectively equipped with the glide path (A) that passes this bottom left, bottom right guide channel (112,113);

This chain locating piece (12) drives first, second distance plate (24,26) that send device (21) corresponding to sprocket on this and locates, and is respectively equipped with the sliding way (B) that passes this upper left, upper right guide channel (122,123).

3. double-layered tooth zipper sewing structure-improved as claimed in claim 1, it is characterized in that: the end face of described large needle plate (11), direction is from high to low skewed setting from front to back, and turn level in the end, form a guide chain platform (111), central authorities have bottom left, the bottom right guide channel (112,113) that front and rear direction takes the shape of the letter U, can be with lower floor's chain (20) by importing behind the forward direction;

Above-mentioned bottom left, bottom right guide channel (112,113) be close to an end place of this guide chain platform (111), be provided with on one, what run through down wears groove (114), and being positioned at this, to wear groove (114) upper end left, the lower recess section (115) of right both sides, and this each lower recess section (115) has respectively at least one lower inner bolt hole (116), this wears a side of contiguous this guide chain platform (111) of groove (114), corresponding to this bottom left, bottom right guide channel (112,113) locate, be provided with a guide chain that takes the shape of the letter U lead the way (117), and this bottom left, bottom right guide channel (112,113) top end face place, be installed with a lower cover (118), and this wears groove (114) and lower recess section (115) locates, correspondence be provided with one by this time inner bolt hole (116) be spirally connected the location lower little needle plate (119);

This chain locating piece (12), its bottom surface is provided with strap guide groove (121) can be with a left side, right strap (30,40) by importing behind the forward direction, corresponding to above-mentioned bottom left, bottom right guide channel (112,113) locate, before having, the rear is upper left to what take the shape of the letter U, upper right guide channel (122,123), can allow upper strata chain (10) by importing behind the forward direction, this is upper left, upper right guide channel (122,123) wearing groove (114) corresponding to this locates, be provided with a groove (124), this groove (124) upper end is left, right both sides, has respectively depressed part on (125), and depressed part (125) has respectively at least one upper inner bolt hole (126) on this each, and this is upper left, upper right guide channel (122,123) top end face place, be installed with a upper cover plate (127), this upper cover plate (127) bottom surface convexes with and can separate a left side, right strap (30,40) sliver of usefulness (1271), and this groove (124) and upper depressed part (125) are located, and correspondence is provided with a upper little needle plate (128) that is spirally connected and locates by being somebody's turn to do upper inner bolt hole (126);

Be somebody's turn to do upper little needle plate (128), it is located corresponding to this upper left, upper right guide channel (122,123), is provided with the upper guiding road (1281) that is shape of reverse omega, and has respectively the upper suture needle hole (1282) that can allow this suture needle group (3) pass;

The little needle plate of this time (119), it is located corresponding to this bottom left, bottom right guide channel (112,113), is provided with the lower guiding road (1191) that is shape of reverse omega, and has respectively the lower suture needle hole (1192) that can allow this suture needle group (3) pass;

This chain locating piece (12), it is located corresponding to suture needle hole (1282) on this each, is respectively equipped with a suture needle hole (129).

4. double-layered tooth zipper sewing structure-improved as claimed in claim 1, it is characterized in that: described left and right adjustment assembly (13,14) comprising: an end activity is embedded at a strap adjustment block (15) in this large needle plate (11) respective side place, and the adjustment screw rod (16) that is spirally connected with this large needle plate (11) respective side place;

This strap adjustment block (15) is not embedded at the end in this large needle plate (11) respective side place, its contiguous this is adjusted a side place of screw rod (16), be provided with a location fluting (151), this adjustment screw rod (16) includes a screw rod (161), and one to be located in this screw rod (161) upper and corresponding to the slot adjustment fixture block (162) of (151) of this location, this strap adjustment block (15) activity is embedded at the end place in this large needle plate (11) respective side place, has one and protrudes from this large needle plate (11) end face, can be used for adjusting the L shaped block (152) of strap position.

5. double-layered tooth zipper sewing structure-improved as claimed in claim 2, it is characterized in that: described upper sprocket drives the feeding crank (23) that send device (21), be adjustable crank, comprise a L shaped pole (231), an and lateral strut (232) that vertically is fixed at these L shaped pole (231) one end places;

Aforementioned L shaped pole (231), the junction of itself and this lateral strut (232), also be provided with a fine adjustment screw perpendicular to this lateral strut (232) (233), an and set screw (234) that is coupling with this lateral strut (232), and this L shaped pole (231) is located corresponding to aforementioned set screw (234), also be provided with a pole fluting (235) that can be used for this set screw (234) running fix, and one can be for the pole chute (236) of this lateral strut (232) link slip usefulness.

6. double-layered tooth zipper sewing structure-improved as claimed in claim 2, it is characterized in that: described the first distance plate (24), spacer block (25), and the second distance plate (26), by a locking that is positioned at the fixed screw (28) of central authorities, and be located at respectively this fixed screw (28) both sides two steady pins (29) place the location, be arranged at an end place of this feeding crank (23).

7. double-layered tooth zipper sewing structure-improved as claimed in claim 1 is characterized in that: described strap adjustment block (15), and it is embedded in the end place in this large needle plate (11) respective side place, also is provided with a limit sliding chutes (153);

And described large needle plate (11), it is located corresponding to aforementioned limit sliding chutes (153), also is inserted with one and can be used for avoiding this strap adjustment block (15) to break away from the spacer pin (154) of this large needle plate (11) usefulness.

8. double-layered tooth zipper sewing structure-improved as claimed in claim 1, it is characterized in that: described large needle plate (11), it is located corresponding to this each strap adjustment block (15), also be concaved with respectively an accommodating chute (11A), and the place that is spirally connected of this large needle plate (11) and this adjustment screw rod (16) is respectively equipped with a fixed block (11B), reaches an interior spiral shell through hole (11C);

And described chain locating piece (12), it is located corresponding to aforementioned each fixed block (11B), be respectively equipped with a fixedly fluting (12A) that can cooperate with this fixed block (11B), and this chain locating piece (12) is corresponding to aforementioned spiral shell through hole (11C) side place in each, is respectively equipped with an accommodating conduit (12B) of can accommodating this adjustment screw rod (16) protruding end using.

9. double-layered tooth zipper sewing structure-improved as claimed in claim 3 is characterized in that: described large needle plate (11), and it is skewed bottom face place, also convexes with the projection (11E) that a bottom surface has a datum plane (11D);

And described guide chain platform (111), its bottom face is relative with aforementioned datum plane (11D), also is provided with a locating convex block (1111) that protrudes from the bottom surface.

10. double-layered tooth zipper sewing structure-improved as claimed in claim 9 is characterized in that: described projection (11E), the side place that it is adjacent to this guide chain platform (111) also is provided with a location card article (11F).