CN205893592U - Sewing machine - Google Patents

Abstract

The utility model relates to a sewing machine relates to printing and dyeing weaving equipment technical field. The utility model discloses a solve that the process intensity of labour that the leftover of bolt of cloth sewd up among the prior art is big, work efficiency low and the workshop need be had enough to meet the need the big technical problem in place and designed. The utility model discloses an including sewing machine seat and sewing machine head, be equipped with the crossbeam that is used for supporting the sewing machine head, the closing device who is used for driving sewing machine head edge crossbeam length direction reciprocating motion's horizontal drive device and is used for compressing tightly the cloth on the sewing machine seat, closing device is located the below of crossbeam, wherein, closing device compresses tightly the back with cloth, and sewing machine sews to cloth along the crossbeam motion. Place sewing machine by the debatching machine, because the debatching machine moves back cloth to the grey cloth and needs A certain amount of time, at its in -process that moves back cloth, the debatching worker just can accomplish sewing machine seing up the leftover of bolt of cloth to effectively having reduced intensity of labour, having saved time, improved work efficiency moreover, the turnover place of workshop processing simultaneously is corresponding reducing also.

Description

A kind of sewing machine

Technical field

This utility model is related to dyeing textile equipment technical field, more particularly, to a kind of sewing machine.

Background technology

Sewing machine is to use one or more sewing thread, forms one or more stitching on sewing, so that one or more layers is stitched The machine that material interweaves or sews up.Sewing function sewing cotton, fiber crops, silk, hair, the fabric such as staple fibre, can also sew leather, The products such as plastics, paper, seam stitching neat appearance out, smooth firmly, sewing velocity is fast, easy to use.

Before cloth is processed, the fabric bought volume typically can be moved back cloth using uncoiling machine by dyeing textile industry, then With sewing machine, the leftover of bolt of cloth of volume two or multireel cloth is sewed up, to facilitate the continuous production of later process.In prior art To the process sewing up main employing of the leftover of bolt of cloth it is: carry out moving back cloth by fabric volume using uncoiling machine, move back the cloth after the completion of cloth Load in cloth car, and the leftover of bolt of cloth of cloth is stayed outside cloth car, to facilitate sewing up between follow-up two leftover of bolt of cloth；After cloth car will move back cloth Cloth be transported to by sewing machine, sewing up of the leftover of bolt of cloth between cloth is completed by special sewer；Sewing up of the cloth leftover of bolt of cloth completes Afterwards, then it is transported at next process processing with cloth car, process high labor intensive, inefficiency and car that the whole leftover of bolt of cloth sews up Between need have enough to meet the need place big.

Utility model content

The purpose of this utility model is to provide a kind of sewing machine, to solve present in prior art between different cloth Process high labor intensive, inefficiency and the workshop that the leftover of bolt of cloth sews up needs to have enough to meet the need the big technical problem in place.

This utility model is a kind of sewing machine, including sewing support and sewing machine head, described sewing support be provided with for Support the crossbeam of described sewing machine head, be used for driving described sewing machine head along the reciprocating horizontal drive of described crossbeam length direction Dynamic device and the hold down gag for compressing cloth, described hold down gag is located at the lower section of described crossbeam.

Further, described hold down gag includes the first hold down gag, the second hold down gag and is fixedly arranged on described sewing machine Slide rail on seat, described second hold down gag is slidably connected on described slide rail.

Further, described first hold down gag and described second hold down gag all include support and are fixedly arranged on described support On presser；Wherein, in described second hold down gag, described bracket slide is connected on described slide rail.

Further, in described first hold down gag, one end of described support is fixedly connected on described sewing support bottom, The other end is installed with described presser.

Further, described presser is included compress lower plate from down to up successively and is fixedly connected with described compress lower plate Compress guide plate and the compress upper plate of described compress guide plate pivot joint and being fixedly connected on described support and for depressing described pressure The longitudinal driving device of cloth upper plate；Described compress upper plate outer end is installed with compress pin, described compress guide plate offers with described The corresponding pilot hole of compress pin, is connected with elastic reset member between described compress upper plate and described compress guide plate.

Further, described elastic reset member is spring, and one end of described spring is affixed with described compress upper plate, another End is affixed with described compress guide plate.

Further, described compress lower plate offers the pressing groove corresponding with described pilot hole.

Further, the take-up device that can freely stretch, one end of described take-up device and described sewing support are also included It is fixedly connected, the other end is fixedly connected with the second hold down gag；And described take-up device is electrically connected with described second hold down gag.

Further, in described second hold down gag, described support is installed with break wire device, described break wire device and institute State sewing machine head electrical connection.

Further, also include plc control station, described plc control station includes electrically connecting with described lateral driver device The first clamping switch that laterally driven switch is electrically connected with described first hold down gag and electrically connecting with described second hold down gag The second clamping switch.

The beneficial effects of the utility model are:

This utility model provides a kind of sewing machine, including sewing support, crossbeam, sewing machine head, lateral driver device and pressure Tight device.Sewing machine is positioned over by uncoiling machine, needs the regular hour because uncoiling machine carries out to fabric moving back cloth, move back cloth at it During, debatching work can be carried out moving back cloth the cloth leftover of bolt of cloth be superimposed with the upper one cloth leftover of bolt of cloth having moved back cloth whole Together, cloth angle is pressed on by corresponding position during sewing state by hold down gag；Open lateral driver device, laterally driven dress Put driving sewing machine head to advance along crossbeam length direction, sewing machine head sews up to the leftover of bolt of cloth of compression simultaneously, by two leftover of bolt of cloth Sew up together.When sewing machine head complete to the leftover of bolt of cloth after sewing up, sewing machine head stops moving forward, and sewing thread cut by debatching work Disconnected, wherein, the broken string of sewing thread can take artificial broken string it is also possible to take machinery broken string, and sew up two leftover of bolt of cloth are taken Under, complete sewing up of the cloth leftover of bolt of cloth；After of short duration stopping, sewing machine head returns to initial bit under the driving effect of lateral driver device Put, begin preparing for sewing up next time.

After the completion of the sewing up of the cloth leftover of bolt of cloth, directly the cloth sewing up can be transported at next process processing and carry out Processing, exclusively carries out, thus eliminating and cloth being transported at sewing processing, the operation sewing up, not only effectively reduces work strong Degree, and time-consuming, improve work efficiency, simultaneously workshop processing turnover place also accordingly reduce；In addition, cloth processing During can save the work of Sewing Machine woker, thus decreasing labour cost investment.

Brief description

In order to be illustrated more clearly that this utility model specific embodiment or technical scheme of the prior art, below will be right In specific embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of this utility model embodiment sewing machine；

Fig. 2 is the structural representation of presser naturalness in Fig. 1；

Fig. 3 is the structural representation of presser impaction state in Fig. 1.

Reference:

1- sewing support 2- sewing machine head 3- the first hold down gag

4- the second hold down gag 5- support 6- presser

7- elastic reset member 8- take-up device 9- break wire device

11- crossbeam 12- slide rail

61- compress lower plate 62- compress guide plate 63- compress upper plate

64- longitudinal driving device 65- compress pin 66- pilot hole

611- pressing groove

Specific embodiment

Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described it is clear that described Embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, this The every other embodiment that field those of ordinary skill is obtained under the premise of not making creative work, broadly falls into this practicality Novel protected scope.

In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term Directly ", the orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are only For the ease of description this utility model with simplify description, rather than instruction or the hint device of indication or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or hint relative importance.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning in this utility model for the language.

The present embodiment is a kind of sewing machine, as shown in figure 1, including sewing support 1 and sewing machine head 2, sewing support 1 sets Have for supporting the crossbeam 11 of sewing machine head 2, being used for driving sewing machine head 2 along the reciprocating horizontal drive of crossbeam 11 length direction Dynamic device and the hold down gag for compressing cloth, hold down gag is located at the lower section of crossbeam 11.

Before cloth is processed, the fabric bought volume typically can first be carried out moving back cloth by factory using uncoiling machine, then uses The leftover of bolt of cloth of volume two or multireel cloth is sewed up by sewing machine, to facilitate the continuous production of later process.During uncoiling machine work, Sewing machine is positioned over by uncoiling machine, needs the regular hour because uncoiling machine carries out to fabric moving back cloth, move back the process of cloth at it In, debatching work can be carried out moving back the cloth leftover of bolt of cloth that the cloth leftover of bolt of cloth of cloth moved back cloth with upper and is superimposed neatly, lead to Cross hold down gag and cloth angle is pressed on corresponding position during sewing state；Open lateral driver device, lateral driver device drives Dynamic sewing machine head 2 advances along crossbeam 11 length direction, and sewing machine head 2 sews up to the leftover of bolt of cloth of compression simultaneously, by two leftover of bolt of cloth Sew up together.When sewing machine head 2 complete to the leftover of bolt of cloth after sewing up, sewing machine head 2 stops moving forward, and debatching work is by sewing thread Cut off, wherein, the broken string of sewing thread can take artificial broken string it is also possible to take machinery broken string, debatching work is by sew up two The individual leftover of bolt of cloth takes off, and completes sewing up of the cloth leftover of bolt of cloth；After of short duration stopping, sewing machine head 2 returns to initial position, begins preparing for next time The sewing up of the cloth leftover of bolt of cloth.

Wherein, lateral driver device can be belt-type drive device, chain type driving device, gear device, tooth bar drive Dynamic device, worm and gear driving means, fluid pressure drive device, actuating device of atmospheric pressure or other can drive sewing machine head 2 along horizontal stroke The reciprocating driving means of beam 11 length direction.Additionally, lateral driver device can also be from screw mandrel as crossbeam 11, crossbeam 11 two ends are rotatably assorted with sewing support 1 and are connected, and sewing machine head 2 is threaded onto on crossbeam 11 as screw, or sewing machine head 2 and silk Mother is fixedly connected, and screw is threaded onto on crossbeam 11, is rotated by Motor drive crossbeam 11 it is possible to drive sewing machine head 2 along crossbeam 11 length direction moves, thus completing the auto-feed function of sewing machine head 2.

After the completion of the sewing up of the cloth leftover of bolt of cloth, directly the cloth sewing up can be transported at next process processing and carry out Processing, exclusively carries out, thus eliminating and being transported to cloth, the operation sewing up at Sewing Machine woker, not only effectively reduce work strong Degree, and time-consuming, improve work efficiency, simultaneously workshop processing turnover place also accordingly reduce；In addition, cloth processing During can save the work of Sewing Machine woker, thus decreasing labour cost investment.

Split in view of processing cloth is not quite similar, as shown in figure 1, the hold down gag of the present embodiment can include first Hold down gag 3, the second hold down gag 4 and the slide rail 12 being fixedly arranged on sewing support 1, the second hold down gag 4 is slidably connected to cunning On rail 12.

Specifically, as shown in figure 1, hold down gag is from left to right followed successively by the first hold down gag 3, the second hold down gag 4, its In the position of the first hold down gag 3 and fixed form indefinite, can be fixedly connected on sewing support 1 it is also possible to be fixedly connected On slide rail 12, can also be slidably connected on slide rail 12.Second hold down gag 4 can horizontally slip on slide rail 12, for The cloth of different splits: when the first hold down gag 3 maintains static, can be by horizontally slipping the second compression along slide rail 12 Device 4 adjusting the distance between the first hold down gag 3 and the second hold down gag 4 so that it is applied to the cloth of different splits The compression of the leftover of bolt of cloth.When the first hold down gag 3 is also slidably connected to slide rail 12 or is removably fixed in other positions, Ke Yitong When adjust the position of the first hold down gag 3 and the second hold down gag 4 to adjust distance between the two, to adapt to the cloth of different splits The compression of the leftover of bolt of cloth.

Additionally, after the first hold down gag 3 and the second hold down gag 4 position determine, can also mounted thereon can consolidate Position the positioner put so that the first hold down gag 3 and the second hold down gag 4 position fixing further it is ensured that sewing machine Operating accuracy, wherein, positioner can be lock, latch etc..Wherein, the first hold down gag 3 is right with the second hold down gag 4 Line between the compression point of the leftover of bolt of cloth is identical with the working trajectory of sewing machine head 2, so that it is guaranteed that to cloth during sewing machine head 2 work The sewing up of the leftover of bolt of cloth.

In the present embodiment, the concrete structure of hold down gag is as shown in figure 1, the first hold down gag 3 and the second hold down gag 4 are equal Support 5 and the presser 6 being fixedly arranged on support 5 can be included；Wherein, in the second hold down gag 4, support 5 is slidably connected to On slide rail 12.Here, the first hold down gag 3 is identical with the structure of the second hold down gag 4, both of which carries compress by support 5 Mechanism 6, presser 6 is used for compression to the cloth leftover of bolt of cloth, is adjusted by the distance between the height of adjusting bracket 5 and support 5 The height of presser 6 and compress width.Wherein, the position of support 5 in the first hold down gag 3 and fixed form are indefinite, can To be fixedly connected on sewing support 1 it is also possible to be fixedly connected on slide rail 12, can also be slidably connected on slide rail 12；The Support 5 in two hold down gags 4 can horizontally slip on slide rail 12.Cloth for different splits: when in the first hold down gag 3 Support 5 when maintaining static, by the support 5 of left and right adjusting the second hold down gag 4, thus adjusting the first hold down gag 3 and The distance between presser 6 of two hold down gags 4, to be applied to the sewing up of the cloth leftover of bolt of cloth of different splits.When the first compression Support 5 position in device 3 can move or can along slide rail 12 horizontally slip when, by adjusting the first hold down gag 3 and The support 5 of two hold down gags 4 adjusting the distance between both pressers 6, to be applied to the cloth leftover of bolt of cloth of different splits Sew up.Additionally, by the height of adjusting bracket 5, the height of presser 6 and the working depth phase of sewing machine head 2 can be made Coupling, so that it is guaranteed that sewing machine being capable of normal work.

In the present embodiment, as shown in figure 1, in the first hold down gag 3, one end of support 5 is fixedly connected on sewing support 1 bottom Portion, the other end is installed with presser 6.This is a kind of concrete structure of the first hold down gag 3, the connected mode of its support 5 and The operation principle of corresponding sewing machine had done detailed description above, repeated no more here.

Specifically, in the present embodiment, as shown in Figures 2 and 3, presser 6 can include under compress from down to up successively The compress upper plate 63 of the compress guide plate 62 that plate 61 is fixedly connected with compress lower plate 61 and compress guide plate 62 pivot joint and being fixedly connected Longitudinal driving device 64 on support 5 and for depressing compress upper plate 63；Described compress upper plate 63 outer end is installed with compress pin 65, compress guide plate 62 offers the pilot hole 66 corresponding with compress pin 65, compress upper plate 63 and described compress guide plate 62 it Between be connected with elastic reset member 7.

As shown in Fig. 2 working as presser 6 in the raw, when preparing the cloth leftover of bolt of cloth is compressed, first by overlap Good cloth angle is filled in the gap between compress lower plate 61 and compress guide plate 62, adjusts longitudinal driving device 64, and zigzag tread patterns fill Put 64 downwards compress upper plate 63 to be compressed, compress upper plate 63 stress rotates down along the junction with compress guide plate 62, The compress pin 65 being simultaneously installed in its outer end moves downward along pilot hole 66 therewith, until conflicting with compress lower plate 61, to cloth Stop motion after the compression of angle, now, elastic reset member 7 is in compressive state by the compression of compress upper plate 63, at presser 6 In impaction state, as shown in Figure 3.Behind presser 6 compression cloth angle, open lateral driver device, sewing machine head 2 will be along crossbeam 11 length direction motions, sew up to the cloth leftover of bolt of cloth in the motor process of sewing machine head 2 simultaneously, after the completion of sewing up, will stitch Line of threading is cut off, and sewing machine head 2 returns to initial position.Longitudinal driving device 64 also returns to initial position, is applied to compress upper plate 63 Downward distress resolves, now, compress upper plate 63 in the presence of elastic reset member 7 counteracting force upwards, on compress Plate 63 will drive compress pin 65 to move up to its initial position, unclamps the compression to cloth angle, the cloth leftover of bolt of cloth is in the gravity of body From presser 6 landing under effect, the operation that sews up of the cloth leftover of bolt of cloth completes.Wherein, the setting of elastic reset member 7 may insure Compress upper plate 63 can return back in situ it is ensured that the gap between compress pin 65 and compress lower plate 61 is sufficient when without compression work Enough cloth angles are filled in, and so that debatching work is operated simpler convenient；In addition, elastic reset member 7 can also be to longitudinal driving device 64 Downward thrust plays certain cushioning effect, can reduce compress pin 65 move downward too fast when conflicting with compress lower plate 61 The probability fractureing.

Wherein, pilot hole 66 plays the effect of guiding to the up and down motion of compress pin 65, reduces compress pin 65 and transports downwards The problem being susceptible to offset or fracture during the dynamic conflict with compress lower plate 61.Additionally, longitudinal driving device 64 can be connecting rod Mechanism driving device, gear rack actuating device, cylinder driver, fluid pressure drive device or other can be to compress upper plate 63 Compression and the driving means loosened.

In the present embodiment, as shown in Figures 2 and 3, elastic reset member 7 can be spring, on one end of spring and compress Plate 63 is affixed, and the other end is affixed with compress guide plate 62.Spring be a kind of made with elastomeric material and using elasticity come the machine of work Tool part, under external force spring deform upon, restore to the original state after removing external force again.Spring species complexity is various, actual behaviour In work, suitable spring can be selected as needed.When longitudinal driving device 64 is pressed downward pressing cloth upper plate 63 and then to spring When being compressed, spring is compressed storage elastic potential energy；When longitudinal driving device 64 gradually returns back to original position upwards, on compress Plate 63 be subject to spring elastic force upwards also gradually upwards motional feedback in situ, elastic potential energy is discharged by spring in the process.

Other than springs, elastic reset member 7 can also select torsion spring, and torsion spring is arranged on compress upper plate 63 and compress guide plate 62 articulated section, when longitudinal driving device 64 is pressed downward pressing cloth upper plate 63, torsion spring is tightened, and torsion spring is compressed storage elasticity Potential energy；When longitudinal driving device 64 gradually homing upwards, compress upper plate 63 is also gradually moved by the elastic force of torsion spring upwards Return back in situ, elastic potential energy is discharged by torsion spring in the process.Elastic reset member 7 can also can make compress from other The element of original position is returned back to after upper plate 63 is pressurized.

In the present embodiment, as shown in Figures 2 and 3, can also offer in compress lower plate 61 corresponding with pilot hole 66 Pressing groove 611.When compress pin 65 moves downward with compress upper plate 63 and cloth angle is compressed, compress pin 65 passes through cloth angle and compress Lower plate 61 is conflicted, simultaneously so that compress pin 65 is more firm to the compression at cloth angle in the top insertion pressing groove 611 of compress pin 65 Gu, cloth angle difficultly slips off when being pullled by external force.

In order to ensure the leftover of bolt of cloth is tightened by hold down gag, sewing machine head 2 sews up to the leftover of bolt of cloth, as shown in figure 1, the present embodiment In, also include the take-up device 8 that can freely stretch, one end of described take-up device 8 is fixedly connected with described sewing support 1, separately One end is fixedly connected with the second hold down gag 4；And described take-up device 8 is electrically connected with described second hold down gag 4.Traditionally, People typically can operate from left to right, first operates the first hold down gag 3 to compress cloth angle, then operates the second hold down gag 4 to incite somebody to action Another cloth angle compression of the leftover of bolt of cloth.Take-up device 8 is electrically connected with the second hold down gag 4, when the second hold down gag 4 completes to cloth angle After compression, the compression signal of telecommunication is passed to take-up device 8, take-up device 8 starts；Wherein first hold down gag 3 maintains static, the Two hold down gags 4 slide to the right under the pulling of take-up device 8, stop after straining the leftover of bolt of cloth.When sewing up of sewing machine head 2 After the completion of task, the first hold down gag 3 and the second hold down gag 4 are unclamped, the leftover of bolt of cloth is in the presence of body deadweight from sewing machine Landing, meanwhile, the second hold down gag 4 will unclamp the signal of telecommunication and pass to take-up device 8, and take-up device 8 is returned to initial bit to the left Put.Wherein, take-up device 8 can be filled to the second compression using cylinder, gear drive or chain gearing etc. Put the device of 4 tensions.

In addition, it is necessary to explanation, referred herein left and right refer to from an angle of sewing machine look over each part it Between relative position, be not absolute left and right.

In the present embodiment, as shown in figure 1, break wire device 9 can also be installed with the support 5 of the second hold down gag 4, break Line apparatus 9 are electrically connected with sewing machine head 2.Sew up in operation, when sewing machine head 2 along crossbeam 11 complete to the leftover of bolt of cloth after sewing up, will Complete the signal of telecommunication and pass to break wire device 9, break wire device 9 starts to be cut off sewing thread, and sewing machine head 2 is returned to initial position, Begin preparing for down sewing up together operation.The setting of break wire device 9, alleviates the labor intensity of debatching work, also makes operation simpler Single efficient.Wherein, break wire device 9 can be using shears, pocket knife, the saw blade device that even sewing thread can be disconnected by baked wheaten cake etc..

In order that the operation of sewing machine is more convenient, in the present embodiment, sewing machine is also provided with plc control station, specifically , laterally driven switch that plc control station includes electrically connecting with lateral driver device electrically connect with the first hold down gag 3 One clamping switch and the second clamping switch electrically connecting with the second hold down gag 4.Plc control station has compact conformation, work surely Fixed, multiple functional the features such as, it has the defencive functions such as overload, short circuit, open-phase protection, can be according to actual magnitude control size It is combined.

After installing plc control station, the operation principle of sewing machine is as follows: carries out the compression at cloth angle first, by the cloth after superposition Angle is filled in the first hold down gag 3, presses the first clamping switch, and the first hold down gag 3 compresses to cloth angle；The leftover of bolt of cloth is another One cloth angle is filled in the second hold down gag 4, presses the second clamping switch, and the second hold down gag 4 compresses to cloth angle；Second Behind hold down gag 4 compression cloth angle, the compression signal of telecommunication is passed to take-up device 8, take-up device 8 is carried out to the second hold down gag 4 Tension, and then the leftover of bolt of cloth is strained；Open lateral driver device, sewing machine head 2 starts, and from left to right the leftover of bolt of cloth is sewed up；When After the completion of sewing machine head 2 sews up to the leftover of bolt of cloth, the signal of telecommunication will be completed and pass to break wire device 9, sewing thread cut off by break wire device 9；Seam Head 2 of threading is returned to initial position, and the first hold down gag 3 and the second hold down gag 4 unclamp cloth angle, the work that the leftover of bolt of cloth is conducted oneself with dignity in body With under from sewing machine landing, sew up operation and complete, sewing machine is prepared to enter into the next one and sews up operation.After plc control station accesses, move back Volume work do not need left and right walk about it is possible to complete the control to whole operation so that debatching work to the control sewing up operation more Simple and direct, reduction labor intensity, and electric control is higher than artificial performance accuracy, so that sewing machine is also ensured that while improving efficiency Higher quality.

Last it is noted that various embodiments above is only in order to illustrating the technical solution of the utility model, rather than it is limited System；Although being described in detail to this utility model with reference to foregoing embodiments, those of ordinary skill in the art should Understand: it still can be modified to the technical scheme described in foregoing embodiments, or to wherein some or all of Technical characteristic carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this practicality new The scope of type each embodiment technical scheme.

Claims (10)

1. a kind of sewing machine, it is characterised in that including sewing support (1) and sewing machine head (2), described sewing support (1) sets Have for supporting the crossbeam of described sewing machine head (2) (11), being used for driving described sewing machine head (2) along described crossbeam (11) length The reciprocating lateral driver device in direction and the hold down gag for compressing cloth, described hold down gag is located at described crossbeam (11) lower section.

2. sewing machine according to claim 1 it is characterised in that described hold down gag include the first hold down gag (3), Two hold down gags (4) and the slide rail (12) being fixedly arranged on described sewing support (1), described second hold down gag (4) is slidably connected On described slide rail (12).

3. sewing machine according to claim 2 is it is characterised in that described first hold down gag (3) and described second compresses Device (4) all includes support (5) and the presser (6) being fixedly arranged on described support (5)；

Wherein, in described second hold down gag (4), described support (5) is slidably connected on described slide rail (12).

4. sewing machine according to claim 3 is it is characterised in that in described first hold down gag (3), described support (5) One end be fixedly connected on described sewing support (1) bottom, the other end is installed with described presser (6).

5. the sewing machine according to claim 3 or 4 is it is characterised in that described presser (6) includes from down to up successively Compress guide plate (62) and described compress guide plate (62) pivot joint that compress lower plate (61) is fixedly connected with described compress lower plate (61) Compress upper plate (63) and be fixedly connected on that described support (5) is upper and zigzag tread patterns dress for depressing described compress upper plate (63) Put (64)；

Described compress upper plate (63) outer end is installed with compress pin (65), and described compress guide plate (62) offers and described compress pin (65) corresponding pilot hole (66), are connected with elastic reset unit between described compress upper plate (63) and described compress guide plate (62) Part (7).

6. sewing machine according to claim 5 it is characterised in that described elastic reset member (7) be spring, described spring One end affixed with described compress upper plate (63), the other end is affixed with described compress guide plate (62).

7. sewing machine according to claim 6 is it is characterised in that offer and described guiding in described compress lower plate (61) The corresponding pressing groove (611) in hole (66).

8. the sewing machine according to claim 3 or 4 is it is characterised in that also include the take-up device (8) that can freely stretch, One end of described take-up device (8) is fixedly connected with described sewing support (1), and the other end and the second hold down gag (4) are fixing even Connect；And described take-up device (8) is electrically connected with described second hold down gag (4).

9. sewing machine according to claim 8 is it is characterised in that in described second hold down gag (4), described support (5) On be installed with break wire device (9), described break wire device (9) is electrically connected with described sewing machine head (2).

10. it is characterised in that also including plc control station, described plc control station includes sewing machine according to claim 9 The first compression that the laterally driven switch being electrically connected with described lateral driver device is electrically connected with described first hold down gag (3) Switch and the second clamping switch electrically connecting with described second hold down gag (4).