CN207812043U - Sewing machine and its auxiliary keep to the side straight line seam device - Google Patents

Abstract

The utility model discloses it is a kind of auxiliary keep to the side straight line stitch device, including：Rib presser feet, including pressure foot, the presser feet connector that is connected to the rib of pressure foot and is connected to above pressure foot；Keep to the side accessory part, including tugboat mounting base and for being rotationally connected with tugboat mounting base by shaft towards the tugboat of rib push-tight cloth, tugboat in rotation, and tugboat is respectively arranged on the both sides of pressure foot with rib.It is such to assist straight line seam setting of the device by keep to the side accessory part and rib presser feet of keeping to the side, tugboat can be made to be limited to the movement of cloth in rotation process, enable cloth constantly toward leaning on rib and move along a straight line close to rib, it is easy to operate, to reduce the labor intensity of staff, improve working efficiency, simultaneously it is also ensured that stitching is wide apart from edge after sewing, garment sewing quality is promoted.The invention also discloses it is a kind of including above-mentioned auxiliary keep to the side straight line stitch device sewing machine, straight line seam efficiency and quality it is higher.

Description

Sewing machine and its auxiliary keep to the side straight line seam device

Technical field

The utility model is related to sewing machine technique fields, more particularly to a kind of to assist the straight line seam device that keeps to the side.In addition, this reality With it is novel further relate to it is a kind of including above-mentioned auxiliary keep to the side straight line stitch device sewing machine.

Background technology

When current industrial sewing machine is sewed, it is substantially and sees back gauge by naked eyes.Straight line sewing for cloth, it is existing Have in technology, it usually needs worker it is hand steered cloth so that cloth moves along a straight line.However, skill of such method for worker Art is more demanding, inconvenient, and especially for the new person of clothing factory, the difficulty that operates is larger, causes working efficiency relatively low, Meanwhile worker does not pay attention to slightly being likely to result in cloth sideslip, the cloth back gauge sewed is not of uniform size, influences the quality of product With aesthetics.

Therefore, the efficiency and quality for how improving straight line seam, are that those skilled in the art need the technology solved to ask at present Topic.

Utility model content

In consideration of it, the purpose of this utility model be to provide it is a kind of auxiliary keep to the side straight line seam device, straight line seam efficiency with Quality is higher.The another object of the utility model is to provide a kind of sewing machine for the straight line seam device that keeps to the side including above-mentioned auxiliary, The efficiency and quality of straight line seam are higher.

To achieve the above object, the utility model provides the following technical solutions：

It is a kind of auxiliary keep to the side straight line seam device, including：

Rib presser feet, including pressure foot, the pressure that is connected to the rib of the pressure foot and is connected to above the pressure foot Foot connector；

Keep to the side accessory part, including tugboat mounting base and for rotation when towards the rib push-tight cloth tugboat, The tugboat is rotationally connected with the tugboat mounting base by shaft, and the tugboat is respectively arranged on the pressure foot with the rib Both sides.

Preferably, the tugboat mounting base is fixedly connected on the presser feet connector.

Preferably, the tugboat mounting base includes presser feet link block and is fixedly connected on the fixation of the presser feet link block Portion, and the fixed part is adjustable relative to the fixed angle of the presser feet link block, the shaft is fixed on the fixed part, The presser feet link block is fixedly connected on the presser feet connector.

Preferably, the fixed part includes the sleeve being fixed in the mounting hole of the presser feet link block and is set to described Tugboat interconnecting piece in sleeve, the sleeve is adjustable relative to the fixed angle of mounting hole, and the tugboat interconnecting piece can be opposite It is moved up and down within a preset range in the sleeve and the sleeve can circumferentially limit the tugboat interconnecting piece, the tugboat The spring for compressing the tugboat interconnecting piece downwards in sewing process is arranged on interconnecting piece, the shaft is connected to described Tugboat interconnecting piece.

Preferably, the tugboat interconnecting piece includes tugboat connecting rod and the fixation that is fixed at below the tugboat connecting rod Bar, the shaft are fixedly connected on the fixed link, and the tugboat connecting rod is prismatic bar, and the internal perisporium of the sleeve is equipped with For coordinating the limiting slot circumferentially to be limited to the tugboat connecting rod with the rib of the tugboat connecting rod.

Preferably, the inner hole wall of the mounting hole and the radial cross-sectional shape of the periphery wall of the sleeve are circle, and The inner hole wall of the mounting hole and the periphery wall of the sleeve fit, and tugboat angle modulation screw runs through the presser feet link block And the periphery wall of the sleeve is compressed, the sleeve is fixed in the mounting hole.

Preferably, the tugboat is equipped at least two side by side, and the corresponding shaft of each tugboat is parallel, and each institute It states tugboat and is located at the same side of a preset plane for being parallel to the pressure foot bottom surface and tangent with the preset plane.

Preferably, the tugboat is two, and each tugboat is connected respectively a L-shaped fixed link, two The fixed link is fixedly connected in the bottom end of the tugboat connecting rod and described two fixed link formation inverted U-shapeds, The spring pocket is set in the tugboat connecting rod, and the bottom end of the spring resists the top of the inverted U-shaped and the bullet The bottom of the presser feet link block is resisted at the top of spring.

A kind of sewing machine includes that auxiliary as described in above-mentioned any one is kept to the side straight line seam device.

The auxiliary provided by the utility model straight line seam device that keeps to the side includes rib presser feet and keeps to the side accessory part.Rib presser feet Including pressure foot, the presser feet connector that is connected to the rib of pressure foot and is connected to above pressure foot.The accessory part that keeps to the side includes Tugboat mounting base and for rotation when towards rib push-tight cloth tugboat, tugboat by shaft be rotationally connected with tugboat install Seat, tugboat are respectively arranged on the both sides of pressure foot with rib.

The underface for needing straight line that the cloth of side seam is leaned on to be placed on rib presser feet is needed adjustment to drag by worker before sewing The setting angle relative to rib is taken turns, tangential motion direction and cloth of the tugboat at its contact point with cloth are by tugboat Direction tilted relative to rib, which can be divided into the first component for being parallel to rib and perpendicular to gear Side and the second component towards rib.

It steps on sewing machine pedal to sew, cloth leans against on rib on one side, and tugboat pushes down cloth, and cloth is along sewing side To advance, the movement of cloth can drive tugboat to rotate around the axis, and tugboat can make have friction between cloth and tugboat when rotating Second component of power, the frictional force can promote cloth towards rib, and straight line fortune is carried out to ensure that cloth touch rib always It is dynamic.Wherein, tugboat should be adjusted as needed relative to the inclined degree of rib, which is particularly suitable for thicker cloth Or the straight line seam of multilayer cloth, will not be due to the thrust of tugboat since the cloth of sewing is whole thicker when sewing such cloth It stands on rib.In sewing process, worker need not visually observe displacement, also do not need hand steered cloth cooperation sewing machine and send Material mechanism sews.

It is such to assist straight line seam setting of the device by keep to the side accessory part and rib presser feet of keeping to the side, tugboat can be made to turn The movement of cloth is limited during dynamic, enables cloth constantly toward leaning on rib and move along a straight line close to rib, It is easy to operate, to reduce staff labor intensity, improve working efficiency, while it is also ensured that sewing after stitching distance Edge is wide, promotes garment sewing quality, technical ability is further gone, even unskilled labor also can complete to fast and high quality Sewing, meanwhile, the apparatus structure is simple, and the straight line seam that keeps to the side that the clothes such as sleeve English, collar can be realized in driving source need not be arranged It threads, cost is extremely low.

The sewing machine of the straight line seam device provided by the utility model that keeps to the side including above-mentioned auxiliary, the efficiency and matter of straight line seam Amount is higher.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.

Fig. 1 is provided the positive structure schematic that auxiliary keeps to the side straight line seam device by the utility model；

Fig. 2 is provided the structure schematic diagram that auxiliary keeps to the side straight line seam device by the utility model；

Fig. 3 is provided the structural schematic diagram that the straight line that assists keeping to the side stitches the accessory part that keeps to the side in device by the utility model；

Fig. 4 is provided the structural schematic diagram that auxiliary keeps to the side straight line seam device centre rib presser feet by the utility model.

In Fig. 1 to Fig. 4,1- tugboat connecting rods, 2- sleeves, 3- presser feet link blocks, 4- tugboat angle modulation screws, 5- bullets Spring, 6- fixed links, 7- tugboats, 8- compression bars, 9- presser feet handles, 10- pressure foots, 11- ribs, 12- Mesa of sewing, 13- holding screws, 14- presser feet fixing screws.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

The core of the utility model is to provide a kind of auxiliary and keeps to the side straight line seam device, efficiency and the quality of straight line seam compared with It is high.Another core of the utility model is to provide a kind of sewing machine for the straight line seam device that keeps to the side including above-mentioned auxiliary, straight line seam Efficiency and quality it is higher.

It please refers to Fig.1 to Fig. 4, Fig. 1 and the Facad structure signal that auxiliary keeps to the side straight line seam device is provided by the utility model Figure；Fig. 2 is provided the structure schematic diagram that auxiliary keeps to the side straight line seam device by the utility model；Fig. 3 is the utility model institute The structural schematic diagram for the accessory part that keeps to the side in assisting keeping to the side straight line seam device is provided；Fig. 4 provides auxiliary by the utility model and leans on The structural schematic diagram of side straight line seam device centre rib presser feet.

The utility model provide auxiliary keep to the side straight line seam device a kind of specific embodiment in, including rib presser feet and lean on Side accessory part.

The presser feet that rib presser feet includes pressure foot 10, is connected to the rib 11 of pressure foot 10 and is connected to 10 top of pressure foot Connector.Wherein, presser feet connector generally includes to be connected to the presser feet handle 9 of 10 upside of pressure foot and is connected to 9 top of presser feet handle Compression bar 8, compression bar 8 is connected in sewing machine body, and optionally, compression bar 8 can be connect with presser feet handle 9 with screw.Wherein, the device In, the rib presser feet of different in width can be replaced according to the technological requirement of different back gauge width open-wire lines.To ensure that rib presser feet is suitable For upper surface to be uneven or the changed cloth of thickness degree, pin can be passed through between presser feet handle 9 and pressure foot 10 Axis connection, the two can be rotated mutually within the scope of certain angle；It can also be connected by axis pin between pressure foot 10 and rib 11, The two can be rotated mutually in a certain range.

The accessory part that keeps to the side includes tugboat mounting base and tugboat 7.Tugboat 7 is rotationally connected with tugboat mounting base by shaft, Tugboat 7 can rotate in shaft, and tugboat 7 can be in rotation towards rib push-tight cloth.Tugboat 7 is set respectively with rib 11 It sets in the both sides of pressure foot 10.

The underface for needing straight line that the cloth of side seam is leaned on to be placed on rib presser feet is needed adjustment to drag by worker before sewing 7 setting angle relative to rib 11 of wheel, tangential motion direction of the tugboat 7 at its contact point with cloth and cloth by The direction of tugboat 7 is tilted relative to rib 11, which can be divided into the first component for being parallel to rib 11 With the second component perpendicular to rib 11 and towards rib 11.When sewing, cloth drives tugboat 7 to roll, and tugboat 7 applies cloth Frictional force in, the second component can carry out straight line towards 11 push-tight cloth of rib to ensure that cloth touch rib 11 always Movement.

As it can be seen that in the present embodiment, by the setting of keep to the side accessory part and rib presser feet, tugboat 7 can be made to rotate The movement of cloth is limited in journey, enables cloth constantly toward leaning on rib 11 and move along a straight line close to rib 11, It is easy to operate, to reduce staff labor intensity, improve working efficiency, while it is also ensured that sewing after stitching distance Edge is wide, promotes garment sewing quality, technical ability is further gone, even unskilled labor also can complete to fast and high quality Sewing, meanwhile, the apparatus structure is simple, and the straight line seam that keeps to the side that the clothes such as sleeve English, collar can be realized in driving source need not be arranged It threads, cost is extremely low.

Specifically, tugboat mounting base can be fixedly connected on presser feet connector, and tugboat mounting base is preferably connected to compression bar 8 On.Before placing cloth toward in Mesa of sewing 12, worker will first carry out presser foot lifter operation, and the rib 11 in rib presser feet can be lifted It rises, since tugboat mounting base is fixedly connected on presser feet connector, the accessory part that keeps to the side integrally can be as rib presser feet lifts, cloth Material can be smoothly put under pressure foot 10 and tugboat 7.It certainly, in other embodiments, can also additionally mounted cylinder etc. Elevating mechanism keep to the side the lifting of accessory part.

Further, tugboat mounting base may include presser feet link block 3 and the fixation that is fixedly connected on presser feet link block 3 Portion, and the fixed part is adjustable relative to the fixed angle of presser feet link block 3, that is, fixed part is in sewing process relative to presser feet Link block 3 is fixedly connected, but setting angle of the fixed part on presser feet link block 3 can be adjusted before sewing.Turn Axis is fixed on fixed part.Presser feet link block 3 is fixedly connected on presser feet connector, to realize that tugboat mounting base is whole and presses Being fixedly connected between foot connector, it is preferable that presser feet link block 3 can be connected to compression bar 8 by presser feet fixing screws 14, tear open Dress is flexible with replacement.

Since the thickness of cloth to be sewed may be different, thicker cloth then needs the frictional force of the offer of tugboat 7 more Greatly, then according to sewing object concrete condition, the opposite setting angle between both tugboat 7 and shaft and rib 11 need into Row adjustment, to ensure that cloth accurately and timely keeps to the side.After selected cloth, adjust opposite between fixed part and presser feet link block 3 Then fixed part is fixed on presser feet link block 3 by setting angle again, so as to be not necessarily to that tugboat mounting base is whole from presser feet It is unloaded on connector, the position relationship between direct word tugboat mounting base internal adjustment fixed part and presser feet link block 3 can be real Existing change of the tugboat 7 relative to 11 tilt condition of rib, adjustment is easy to operate, can improve the auxiliary and keep to the side straight line seam device Applicability.Wherein, cloth can be specifically placed on by the angle set-up procedure for tugboat 7 on presser feet link block 3 in worker It is carried out after the underface of rib presser feet, which is not the steps necessary of each sewing process, replaces cloth kind every time It is carried out when class, when continuously sewing cloth of the same race without being adjusted.

Further, fixed part may include the sleeve 2 being fixed in the mounting hole of presser feet link block 3 and set on set Tugboat interconnecting piece in cylinder 2.Presser feet link block 3, sleeve 2 and tugboat interconnecting piece form the structure being nested.Sleeve 2 is relative to peace The fixed angle for filling hole is adjustable, and in sewing process, sleeve 2 is integrally fixed in mounting hole, but before sewing, sleeve 2 Setting angle relative to mounting hole can adjust.Tugboat interconnecting piece can within a preset range be moved up and down relative to sleeve 2, And sleeve 2 can carry out tugboat interconnecting piece circumferential limit, make tugboat 7 that cannot be rotated in sleeve 2 but can carry out certain Moving up and down in range.The spring 5 for being fixed portion downwards in sewing process, shaft are arranged on tugboat interconnecting piece It is connected to tugboat interconnecting piece, referring to FIG. 3, spring 5 is pressed downward being pressed downward straining at wheel 7 while straining at wheel interconnecting piece.

Sleeve 2 may be implemented fixed setting on fixed part and presser feet link block 3 and fixed part and presser feet link block 3 it Between fixed angle adjusting.In the inside of fixed part, since tugboat interconnecting piece can carry out in a certain range relative to sleeve 2 It moves up and down, but cannot be rotated relative to sleeve 2 or carry out other movements, then spring 5 provides downwards tugboat interconnecting piece Pressure, tugboat 7 lowest point be that can be adapted with the upper surface bumps situation of the thickness of cloth and cloth. In sewing process, spring 5 can ensure that tugboat 7 compresses the upper surface of cloth always.

Wherein, can within a preset range be moved up and down relative to sleeve 2 specifically can be by a variety of sides for tugboat interconnecting piece Formula is realized.For example, upper limit position block and lower position block can be respectively set on tugboat interconnecting piece, when tugboat interconnecting piece moves to When extreme position, lower position block resists the bottom wall of sleeve 2 and continues uplink to limit tugboat interconnecting piece；When tugboat interconnecting piece is transported When moving to lower limit position, upper limit position block resists the bottom wall of sleeve 2 and is continued traveling downwardly with limiting tugboat interconnecting piece.

For sleeve 2 to the embodiment of tugboat interconnecting piece circumferentially limited, specifically, tugboat interconnecting piece can be arranged It is to include tugboat connecting rod 1 and be fixed at the fixed link 6 of the lower section of tugboat connecting rod 1, shaft is fixedly connected on fixed link 6. In tugboat interconnecting piece, tugboat connecting rod 1 is matched with sleeve 2, and for fixed link 6 for connecting tugboat 7, shaft is fixedly connected on fixation Bar 6, fixed link 6 can be the split structure being connected with tugboat connecting rod 1, or integrated formed structure.Tugboat connects Extension bar 1 is prismatic bar, is specifically as follows quadrangular, hexagonal prisms or other prisms.The internal perisporium of sleeve 2 is equipped with limiting slot, Limiting slot is used to coordinate with the rib of tugboat connecting rod 1 and be rotated relative to sleeve 2 with limiting tugboat connecting rod 1, to connect to tugboat Extension bar 1 carries out circumferential limit.Wherein, the internal perisporium of sleeve 2 is preferably arranged to be adapted with the periphery wall shape of tugboat connecting rod 1 Prismatic face, and the internal perisporium of sleeve 2 and the periphery wall of tugboat connecting rod 1 fit, to ensure the same of limit effect When reduce sleeve 2 difficulty of processing.

Further, the inner hole wall of mounting hole and the radial cross-sectional shape of the periphery wall of sleeve 2 can be circle, and pacify The periphery wall for filling the inner hole wall and sleeve 2 in hole fits, and tugboat angle modulation screw 4 is through presser feet link block 3 and clamp sleeve 2 Periphery wall, sleeve 2 is fixed in mounting hole, at this point, adjustable angle is fixedly mounted between sleeve 2 and mounting hole being 360 degree, it can realize that the step-less adjustment to 2 fixed position of sleeve, applicability are preferable.In adjustment, unscrew tugboat angular adjustment Screw 4, rotational sleeve 2 can be adjusted setting angle of the tugboat 7 relative to rib 11 in mounting hole.

Further, tugboat 7 can be equipped at least two side by side, and 7 corresponding shaft of each tugboat is parallel, and each tugboat 7 The same side of the preset plane of 10 bottom surface of pressure foot and tangent with the preset plane is parallel to positioned at one, to ensure each tugboat 7 Cloth can be pushed down simultaneously.Preferably, all tugboats 7 can be identical cylindric tugboat 7, and shaft setting is in corresponding tugboat Central axis.If only be arranged a tugboat 7, assemble the auxiliary keep to the side straight line stitch device when, need to adjust tugboat 7 repeatedly Position, can with sewing machine needle position be adapted, to avoid in sewing machine because the setting of tugboat 7 cause cloth around Eedle rotates.And at least two tugboats 7 are set, and each tugboat 7 can be distributed on the different directions of eedle, convenient for being arranged, It can ensure the push-tight effect to cloth simultaneously.

Further, referring to FIG. 3, tugboat 7 is preferably provided with two, each tugboat 7 be connected respectively one it is L-shaped solid Fixed pole 6, two fixed links 6 are fixedly connected in the bottom end of tugboat connecting rod 1 and two formation inverted U-shapeds of fixed links 6, spring 5 are sheathed in tugboat connecting rod 1, and the bottom end of spring 5 resists the top of inverted U-shaped and the top of spring 5 and resists presser feet connection The bottom of block 3, the spring 5 are limited by presser feet link block 3 and inverted U-shaped, while the inverted U-shaped can be with spring 5 The upper limit position of tugboat connecting rod 1 moved relative to sleeve 2 is limited jointly.Tugboat 7 is set as two, is being installed on When in sewing machine, the i.e. avoidable cloth in both sides that two tugboats 7 are separately positioned on eedle is rotated around eedle, is kept to the side convenient for the auxiliary Straight line stitches the assembling and its installation in sewing machine of device.Wherein, fixed link 6 can be fixedly connected by holding screw 13 In tugboat connecting rod 1.

Obviously, the setting of fixed part is not limited to the mode that the various embodiments described above are provided.For example, can on presser feet link block 3 To be equipped with connecting hole, fixed part can be that cylindricality block is arranged in the connecting hole, around circumferential equidistant on the hole wall of the connecting hole Raised line can be corresponded to equipped with several raised lines, on the periphery wall of fixed block to set there are one groove, raised line is consolidated with fit depressions Determine the circumferential limit of block.When changing the fixed angle of fixed block, fixed block is taken out except connecting hole, makes groove and currently matches The raised line phase separation for closing grafting, rotates certain angle, then fixed block is put into the connecting hole, makes groove and another raised line phase The adjusting of the setting angle between fixed block and connecting hole is realized in cooperation positioning.

In addition to the above-mentioned auxiliary straight line that keeps to the side stitches device, it includes disclosed in above-described embodiment that the utility model, which additionally provides a kind of, Auxiliary keep to the side straight line seam device sewing machine, the sewing machine as a result of above-mentioned auxiliary keep to the side straight line stitch device, straight line seam Efficiency and quality it is higher.Refer to the prior art for the structure of other each sections of the sewing machine, and repeats no more herein.

Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other The difference of embodiment, just to refer each other for identical similar portion between each embodiment.

Above to sewing machine provided by the utility model and its auxiliary keep to the side straight line seam device be described in detail.This It applies specific case in text to be expounded the principles of the present invention and embodiment, the explanation of above example is It is used to help understand the method and its core concept of the utility model.It should be pointed out that for the ordinary skill people of the art For member, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model, this A little improvement and modification are also fallen into the protection domain of the utility model claims.

Claims (9)

1. The straight line seam device 1. a kind of auxiliary is kept to the side, which is characterized in that including：

   Rib presser feet, including pressure foot (10), be connected to the rib (11) of the pressure foot (10) and be connected to the pressure foot (10) the presser feet connector above；

   Keep to the side accessory part, including tugboat mounting base and for rotation when towards the rib (11) push-tight cloth tugboat (7), the tugboat (7) is rotationally connected with the tugboat mounting base, the tugboat (7) and the rib (11) difference by shaft Both sides set on the pressure foot (10).
2. The straight line seam device 2. auxiliary according to claim 1 is kept to the side, which is characterized in that the tugboat mounting base is fixedly connected In the presser feet connector.
3. The straight line seam device 3. auxiliary according to claim 2 is kept to the side, which is characterized in that the tugboat mounting base includes presser feet Link block (3) and the fixed part for being fixedly connected on the presser feet link block (3), and the fixed part is connected relative to the presser feet The fixed angle of block (3) is adjustable, and the shaft is fixed on the fixed part, and the presser feet link block (3) is fixedly connected on institute State presser feet connector.
4. The straight line seam device 4. auxiliary according to claim 3 is kept to the side, which is characterized in that the fixed part includes being fixed at Sleeve (2) in the mounting hole of the presser feet link block (3) and the tugboat interconnecting piece in the sleeve (2), the sleeve (2) adjustable relative to the fixed angle of mounting hole, the tugboat interconnecting piece can be relative to the sleeve (2) within a preset range It moves up and down and the sleeve (2) can circumferentially limit the tugboat interconnecting piece, be arranged with and be used on the tugboat interconnecting piece Compress the spring (5) of the tugboat interconnecting piece downwards in sewing process, the shaft is connected to the tugboat interconnecting piece.
5. The straight line seam device 5. auxiliary according to claim 4 is kept to the side, which is characterized in that the tugboat interconnecting piece includes tugboat Connecting rod (1) and the fixed link (6) being fixed at below the tugboat connecting rod (1), the shaft is fixedly connected on described solid Fixed pole (6), the tugboat connecting rod (1) are prismatic bar, and the internal perisporium of the sleeve (2) is equipped with for being connect with the tugboat The rib of bar (1) coordinates the limiting slot circumferentially to be limited to the tugboat connecting rod (1).
6. The straight line seam device 6. auxiliary according to claim 5 is kept to the side, which is characterized in that the inner hole wall of the mounting hole and institute The radial cross-sectional shape for stating the periphery wall of sleeve (2) is circle, and the inner hole wall of the mounting hole and the sleeve (2) is outer Peripheral wall fits, and tugboat angle modulation screw (4) runs through the presser feet link block (3) and compresses the periphery wall of the sleeve (2), The sleeve (2) to be fixed in the mounting hole.
7. The straight line seam device 7. auxiliary according to claim 5 is kept to the side, which is characterized in that the tugboat (7) is equipped with extremely side by side Few two, the corresponding shaft of each tugboat (7) is parallel, and each tugboat (7) is parallel to the pressure positioned at one The same side of the preset plane of sole (10) bottom surface and tangent with the preset plane.
8. The straight line seam device 8. auxiliary according to claim 7 is kept to the side, which is characterized in that the tugboat (7) is two, each institute It states tugboat (7) and is connected respectively a L-shaped fixed link (6), two fixed links (6) are fixedly connected in described The bottom end of tugboat connecting rod (1) and described two fixed links (6) form inverted U-shaped, and the spring pocket is set to described drag It takes turns on connecting rod (1), the bottom end of the spring (5) resists to be resisted at the top of the top and the spring (5) of the inverted U-shaped The bottom of the presser feet link block (3).
9. 9. a kind of sewing machine, which is characterized in that including the auxiliary described in claim 1 to 8 any one keep to the side straight line stitch device.