阅读说明：本技术 鞋面缝纫装置 (Vamp sewing device ) 是由 郝金红 于 2020-11-02 设计创作，主要内容包括：本发明公开了一种鞋面缝纫装置,包括机架,所述机架上设置有缝纫机,所述机架上还设置有用于套设鞋面的弧形板以及用于驱动弧形板转动和移动的驱动机构,所述弧形板上设置有用于对齐鞋后帮面领口边沿的齐边件和用于将鞋跟衬片抵触在鞋面上的定位件,所述弧形板与缝纫机之间还设置有用于将鞋面贴设在弧形板边沿并收紧的收紧件,所述机架上还设置有线阵相机以及控制台,所述控制台分别与线阵相机、缝纫机以及驱动机构通讯连接。可以有效匹配不同形式的鞋后帮面领口以及后帮内里样式,实现半自动化生产,有效提高生产加工效率。(The invention discloses a vamp sewing device, which comprises a rack, wherein a sewing machine is arranged on the rack, an arc-shaped plate for sleeving a vamp and a driving mechanism for driving the arc-shaped plate to rotate and move are also arranged on the rack, an edge aligning piece for aligning the edge of a collar of a vamp of a shoe back and a positioning piece for enabling a heel facing to be abutted against the vamp are arranged on the arc-shaped plate, a tightening piece for attaching and tightening the vamp at the edge of the arc-shaped plate is also arranged between the arc-shaped plate and the sewing machine, a linear array camera and a control console are also arranged on the rack, and the control console is respectively in communication connection with the linear array camera, the sewing machine and the driving mechanism. The collar of the upper back surface and the inner pattern of the back upper can be effectively matched in different forms, semi-automatic production is realized, and the production and processing efficiency is effectively improved.)

1. The utility model provides a vamp sewing device, includes the frame, be provided with sewing machine in the frame, its characterized in that: still be provided with in the frame and be used for the cover to establish the arc of vamp and be used for driving the actuating mechanism that the arc rotated and removed, be provided with on the arc and be used for lining up the limit piece and be used for contradicting the setting element on the vamp with the heel facing at upper back of a shoe collarband border, still be provided with between arc and the sewing machine and be used for pasting the vamp and establish the tightening piece that tightens up at the arc border, still be provided with linear array camera and control cabinet in the frame, the control cabinet is connected with linear array camera and sewing machine communication respectively.

2. An upper stitching device according to claim 1 wherein: the trimming piece is set to be a plurality of slip sheets arranged along the circumferential direction of the arc-shaped plate, the outer peripheral wall of the arc-shaped plate is provided with sliding grooves at intervals along the length direction of the arc-shaped plate, the slip sheets are in sliding fit with the sliding grooves, and the end faces of the slip sheets are parallel and level to the outer peripheral face of the arc-shaped plate.

3. A shoe upper sewing device according to claim 2, characterized in that: the sliding plate is provided with a positioning through groove, the bottom surface of the sliding groove is provided with a positioning hole corresponding to a common positioning position, a positioning screw is inserted into the positioning through groove, and the positioning screw penetrates through the positioning through groove to be in threaded fit with the positioning hole.

4. An upper sewing device according to claim 1, 2 or 3, characterized in that: the one end that sewing machine was kept away from to the arc is provided with the connection pad, the setting element is a plurality of and arranges along arc circumference, still be provided with in the frame and be used for discerning the recognizer of pressing down the contact and control setting element conflict heel facing in proper order, the setting element includes positioning seat, power supply and locating lever, the positioning seat sets up on the connection pad, the power supply sets up on the positioning seat, the output shaft of power supply radially sets up along the arc, the locating lever rotates to be connected on the positioning seat, locating lever one end is connected with the output shaft rotation of power supply, and the other end sets up for supporting the contact end and extending to the arc.

5. An upper stitching device according to claim 4 wherein: the positioning rod is provided with a pressing rod in a sliding mode, a locking hole is formed in the pressing rod, an adjusting through groove is formed in the positioning rod, a locking screw is inserted into the adjusting through groove, and the locking screw penetrates through the adjusting through groove to be in threaded fit with the locking hole.

6. An upper stitching device according to claim 5 wherein: the end part of the pressing rod is bent to form a contact, and the radian of the end surface of the contact is matched with the radian of the peripheral wall of the arc-shaped plate.

7. An upper stitching device according to claim 4 or 5, wherein: still contradict between locating lever and the arc and be provided with buffer spring.

8. An upper stitching device according to claim 4 wherein: the connecting disc is provided with the mount pad to the sewing machine extension, be formed with the location platform on the mount pad, still slide along the frame direction of height on the mount pad and be provided with the seat of tightening and be used for the drive to be close to the ejection cylinder of arc, the seat of tightening sets up in location platform below, it is provided with reset spring to contradict between seat of tightening and the location platform, the piece that tightens up sets up to the clamping jaw, the clamping jaw sets up on tightening the seat.

9. An upper stitching device according to claim 8 wherein: the linear array camera is arranged on the mounting seat.

10. An upper stitching device according to claim 4 wherein: the driving mechanism comprises a first driving seat, a second driving seat, a third driving seat, a first driving motor, a second driving motor and a third driving motor, wherein the first driving motor is arranged on the first driving seat, the second driving motor is arranged on the second driving seat, the third driving motor is arranged on the third driving seat, the first driving seat is arranged on the frame, a first lead screw is rotatably arranged on the first driving seat along the width direction of the frame, the first lead screw is in transmission connection with the first driving motor, the second driving seat is slidably arranged on the first driving seat and in threaded fit with the first lead screw, a second lead screw is rotatably arranged on the second driving seat along the length direction of the frame, the second lead screw is in transmission connection with the second driving motor, the third driving seat is slidably arranged on the second driving seat and in threaded fit with the second lead screw, the connecting disc is rotatably arranged on the third driving seat through a rotating shaft and is in transmission connection with a third driving motor.

Technical Field

The invention relates to the technical field of sewing equipment, in particular to a vamp sewing device.

Background

The vamp is an important component of the shoe, along with the development of society, people also pursue more and more spiritual enjoyment brought by fashion, the styles of the shoe on the market are more and more, the vamp is used as the most intuitive display surface of the shoe, the appearance design is also more varied, the processing of the vamp is also more and more complicated, the processing of the vamp part is not limited to the common processing technology of the shoelace hole, the vamp electric embroidery and the like at present, but also comprises the sewing of the vamp rear sleeve and the collar of the vamp rear upper, the sewing aiming at the collar position of the vamp rear upper at present is carried out, because the collar shape of the vamp rear upper is different, and the main body is arc-shaped, the vamp inner and the collar of the vamp rear upper are required to be pressed tightly by a worker, the operation difficulty of the worker is that the length of the vamp rear upper and the vamp inner needs to be aligned in segments, the edges need to be aligned, two pieces of the vamp are attached and then sewn at the 2mm position of the edge, and the production efficiency is, is not beneficial to improving the production and processing efficiency, has extremely high labor cost, is quite tired when being produced and operated by workers, is easy to be distracted and is hurt by the sewing machine.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the vamp sewing device which can be effectively matched with the collar and the lining pattern of the back upper of the shoe in different forms, realize semi-automatic production and effectively improve the production and processing efficiency.

In order to achieve the purpose, the invention provides an upper sewing device, which comprises a rack, wherein a sewing machine is arranged on the rack, an arc-shaped plate used for sleeving an upper and a driving mechanism used for driving the arc-shaped plate to rotate and move are further arranged on the rack, an edge aligning piece used for aligning the collar edge of the upper back of a shoe and a positioning piece used for enabling a heel facing piece to be abutted against the upper are arranged on the arc-shaped plate, a tightening piece used for enabling the upper to be attached to the edge of the arc-shaped plate and tightened is further arranged between the arc-shaped plate and the sewing machine, a linear array camera and a control console are further arranged on the rack, and the control console is respectively in communication connection with the linear array camera, the sewing machine and the driving mechanism.

The beneficial effect who so sets up is: the arrangement is that the position of the collar of the back upper surface to be processed is sleeved on the arc-shaped plate, the arc-shaped plate is provided with the edge trimming piece, the edge trimming piece can be adjusted according to the edge patterns of the collar of the back upper surface of different styles, so that the collar of the back upper surface can be fully attached to the edge of the edge trimming piece, meanwhile, the position of the vamp is fixed by the tightening piece, so that the vamp is attached to the arc-shaped plate, the inner lining of the back upper to be sewed up is attached to the corresponding position of the collar of the back upper surface, the shape of the inner lining of the back upper is basically the same as that of the sewing surface of the vamp, therefore, the edge shape formed by the edge trimming piece can be met, the position fixing of the vamp and the lining is realized by pressing the positioning piece, meanwhile, the collar patterns of the back upper surface of the shoe are recognized by the camera, the linear array camera belongs to the prior art, and is mainly applied to the field of industrial detection, meanwhile, various high-speed rotating objects can be used as detection objects to detect continuous materials, the linear array camera is used as one of various forms of industrial cameras, of course, a phase array camera or a 3D camera and the like can also be adopted, coordinates of the edge of the upper opening of the counter are provided through the linear array camera, the coordinates are sent to a sewing machine and a driving mechanism through a control console, the arc-shaped plate is fed to the sewing machine through the driving mechanism, and the vamp and the inner part of the counter are positioned, sewn and fixed through front and back displacement while rotating.

As a further arrangement of the invention, the trimming piece is provided with a plurality of sliding sheets which are arranged along the circumferential direction of the arc-shaped plate, sliding grooves are arranged on the peripheral wall of the arc-shaped plate at intervals along the length direction of the arc-shaped plate, the sliding sheets are in sliding fit with the sliding grooves, and the end surfaces of the sliding sheets are arranged in parallel and level with the peripheral surface of the arc-shaped plate.

The beneficial effect who so sets up is: the trimming piece is arranged, the sliding sheet can be moved by sliding the vamp according to the corresponding style, so that the vamp can be well attached to meet the follow-up sewing requirement due to the fact that the edge of the arc-shaped plate is formed or the shape of the arc-shaped plate is convex or concave, the operation is very convenient, and meanwhile, the end face of the sliding sheet is arranged in parallel and level with the outer peripheral face of the arc-shaped plate, the use reliability of the whole structure is improved, and meanwhile, the trimming piece is simple in structure and beneficial to.

As a further arrangement of the invention, a positioning through groove is arranged on the slide, a positioning hole is arranged at the bottom surface of the slide corresponding to a common positioning position, a positioning screw is inserted into the positioning through groove, and the positioning screw passes through the positioning through groove and is in threaded fit with the positioning hole.

The beneficial effect who so sets up is: set up like this, location simple operation is quick like this, has great accommodation space simultaneously, improves overall structure's result of use.

As a further arrangement of the invention, a connecting disc is arranged at one end of the arc-shaped plate far away from the sewing machine, a plurality of positioning pieces are arranged along the circumferential direction of the arc-shaped plate, a recognizer for recognizing that the pressing contact points sequentially control the positioning pieces to abut against the heel lining is also arranged on the rack, each positioning piece comprises a positioning seat, a power source and a positioning rod, the positioning seat is arranged on the connecting disc, the power source is arranged on the positioning seat, an output shaft of the power source is radially arranged along the arc-shaped plate, the positioning rod is rotatably connected on the positioning seat, one end of the positioning rod is rotatably connected with the output shaft of the power source, and the other end of the positioning.

The beneficial effect who so sets up is: the positioning piece is arranged, when positioning is needed, the power source output shaft pushes the positioning rod, the power source can be arranged into a cylinder, an oil cylinder and other structures, the positioning rod is enabled to be abutted against the outer wall of the arc-shaped plate at one end of the arc-shaped plate, so that the inner lining of the back upper is pressed on the arc-shaped plate, the traditional manual positioning of the inner lining of the back upper needs two hands to press the middle position of the aligned inner lining of the back upper and the collar of the back upper surface, then the back upper inner and the collar of the back upper surface are aligned and attached by moving towards two sides in sequence, the pressing position of the hands is identified through the identifier, the positioning piece is controlled to be pressed in sequence, the edge positions can be aligned and attached, the operation use of the whole structure is enabled to be more reasonable and effective, the identifier can be a photoelectric sensor, a visual sensor or an action capture sensor, meanwhile, the structure is simple, the positioning effect is improved, the use stability of the whole structure is improved, and the subsequent sewing operation is facilitated.

As a further arrangement of the invention, a pressure lever is slidably arranged on the positioning lever, a locking hole is formed on the pressure lever, an adjusting through groove is formed on the positioning lever, a locking screw is inserted into the adjusting through groove, and the locking screw passes through the adjusting through groove and is in threaded fit with the locking hole.

The beneficial effect who so sets up is: set up like this, can carry out position control according to the back group of different styles inside, guarantee that the depression bar can contradict on the arc outer wall, simple structure is convenient for operate simultaneously, improves overall structure's result of use and suitability.

As a further arrangement of the invention, the end part of the pressure lever is bent to form a contact, and the radian of the end surface of the contact is matched with the radian of the peripheral wall of the arc-shaped plate.

The beneficial effect who so sets up is: set up like this, can be better contradict to help the interior after to conflict head terminal surface radian and arc periphery wall radian looks adaptation can avoid crushing help the interior after, avoid leaving the mar, and simple structure does benefit to the realization simultaneously.

As a further arrangement of the invention, a buffer spring is also arranged between the positioning rod and the arc-shaped plate in a propping manner.

The beneficial effect who so sets up is: set up like this, through buffer spring, avoid power supply output strength too big for the conflict head is interior after excessively conflicting, and the interior surface in the group after the fish tail effectively improves overall structure's use reliability.

As a further arrangement of the invention, a mounting seat extends from the connecting disc to the sewing machine, a positioning table is formed on the mounting seat, a tightening seat and a pushing cylinder used for driving the arc-shaped plate to approach are also arranged on the mounting seat in a sliding manner along the height direction of the machine frame, the tightening seat is arranged below the positioning table, a reset spring is arranged between the tightening seat and the positioning table in an abutting manner, the tightening piece is arranged as a clamping jaw, and the clamping jaw is arranged on the tightening seat.

The beneficial effect who so sets up is: set up like this, set the clamping jaw with the fastener, when needs tighten up the vamp, through the ejection cylinder, will tighten up the seat and rise the position that reachs the centre gripping vamp, draw in the clamping jaw in for the clamping jaw presss from both sides at the vamp border, ejection cylinder output shaft contracts back, under reset spring's effect, tighten up the seat and receive the pulling force, thereby get off the vamp and make behind the shoes group face collarband position compress tightly on the arc, this kind of simple structure does benefit to the realization, has better stability, improves overall structure's result of use.

As a further arrangement of the invention, the line camera is arranged on the mounting seat.

The beneficial effect who so sets up is: the device is arranged to be close to the edge of the arc-shaped plate, so that the data of the shape formed by the edge of the edge trimming piece can be fully obtained, the accuracy of data acquisition is improved, and the reliability of the use of the device is improved.

As a further arrangement of the present invention, the driving mechanism includes a first driving seat, a second driving seat, a third driving seat, a first driving motor, a second driving motor and a third driving motor, the first driving motor is disposed on the first driving seat, the second driving motor is disposed on the second driving seat, the third driving motor is disposed on the third driving seat, the first driving seat is disposed on the frame, a first lead screw is rotatably disposed on the first driving seat along the width direction of the frame, the first lead screw is in transmission connection with the first driving motor, the second driving seat is slidably disposed on the first driving seat and in threaded engagement with the first lead screw, a second lead screw is rotatably disposed on the second driving seat along the length direction of the frame, the second lead screw is in transmission connection with the second driving motor, the third driving seat is slidably disposed on the second driving seat and in threaded engagement with the second lead screw, the connecting disc is rotatably arranged on the third driving seat through a rotating shaft and is in transmission connection with a third driving motor.

The beneficial effect who so sets up is: set up like this, the drive arc that can be convenient is close to or keeps away from sewing machine, can rotate simultaneously, sews up each position, and simple structure is convenient for maintain simultaneously, effectively improves overall structure's stability and result of use.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a partial enlarged view of the position of the positioning element in the embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of the arcuate plate position in accordance with an embodiment of the present invention;

fig. 5 is a partially enlarged view of the driving mechanism in the embodiment of the present invention.

Detailed Description

The embodiment of the vamp sewing device of the invention is shown in figures 1 to 5: including frame 1, be provided with sewing machine 3 in the frame 1, still be provided with in the frame 1 and be used for the cover to establish the arc 2 of vamp and be used for driving the actuating mechanism 7 that arc 2 rotates and removes, be provided with on the arc 2 and be used for aligning the neat limit piece 5 at upper of a shoe neck opening border behind the shoes and be used for contradicting the setting element 4 on the vamp with the heel facing, still be provided with between arc 2 and sewing machine 3 and be used for pasting the vamp and establish the tightening member that tightens up at arc 2 border, still be provided with linear array camera 8 and control cabinet in the frame 1, the control cabinet is connected with linear array camera 8, sewing machine 3 and actuating mechanism 7 communication respectively. The beneficial effect who so sets up is: the arrangement is that the position of the collar of the back upper surface to be processed is sleeved on the arc-shaped plate 2, the arc-shaped plate 2 is provided with the edge trimming piece 5, the edge trimming piece can be adjusted according to the edge patterns of the collar of the back upper surface with different styles and sizes, so that the collar of the back upper surface can be fully attached to the edge trimming piece 5, meanwhile, the position of the vamp is fixed by the tightening piece, so that the vamp is attached to the arc-shaped plate 2, then the back upper lining to be sewed up is attached to the corresponding position of the collar of the back upper surface, the shape of the back upper lining is basically the same as the shape of the sewing surface of the vamp, therefore, the edge shapes formed by the edge trimming piece 5 can be met, the positioning piece 4 is pressed to fix the positions of the vamp and the lining, meanwhile, the linear array camera 8 identifies the collar patterns of the back upper surface, the linear array camera 8 belongs to the prior art and is mainly applied to the field of industrial detection, linear array camera 8 can carry out the high frequency scanning, simultaneously also can be various high speeds, rotatory object is as the object that detects, can detect continuous material, send to sewing machine 3 and actuating mechanism 7 by the control cabinet again, send into sewing machine 3 through actuating mechanism 7 with arc 2, and displacement is fixed a position and is sewed up fixedly in vamp and back group lining around the pivoted, this kind of equipment simple structure, can realize automatic feeding sewing action, simple structure simultaneously, do benefit to the realization, improve overall structure's result of use, reduce artificial participation, and effectively improve production machining efficiency.

As a further setting of this embodiment, flush limit piece 5 sets up to the gleitbretter that 2 circumference of a plurality of edge arc were arranged, 2 length direction intervals along the arc are provided with the spout on the periphery wall of arc 2, the gleitbretter slides with the spout and cooperates, gleitbretter terminal surface sets up with 2 outer peripheral face parallel and level of arc. The beneficial effect who so sets up is: the trimming piece 5 is arranged, the sliding sheet can be moved by sliding according to the vamp of the corresponding style, so that the edge of the arc-shaped plate 2 is formed into a convex or concave shape, the operation is very convenient, meanwhile, the end face of the sliding sheet is arranged in parallel and level with the outer peripheral face of the arc-shaped plate 2, the vamp can be better attached, the follow-up sewing requirement is met, the reliability of the use of the whole structure is increased, and meanwhile, the trimming piece is simple in structure and beneficial to implementation.

As a further configuration of the present embodiment, a positioning through groove 51 is formed on the slide, a positioning hole 22 is formed on the bottom surface of the slide corresponding to a normal positioning position, and a positioning screw is inserted into the positioning through groove 51 and passes through the positioning through groove 51 to be in threaded fit with the positioning hole 22. The beneficial effect who so sets up is: set up like this, location simple operation is quick like this, has great accommodation space simultaneously, improves overall structure's result of use.

As a further setting of this embodiment, the one end that sewing machine 3 was kept away from to arc 2 is provided with connection pad 21, setting element 4 is a plurality of and arranges along 2 circumference of arc, still be provided with the recognizer that is used for discerning the conflict heel facing of pressing contact control setting element in proper order in the frame 1, setting element 4 includes positioning seat 41, power supply 42 and locating lever 43, positioning seat 41 sets up on setting connection pad 21, power supply 42 sets up on positioning seat 41, power supply 42's output shaft radially sets up along arc 2, locating lever 43 rotates to be connected on positioning seat 41, locating lever 43 one end is connected with power supply 42's output shaft rotation, and the other end extends the setting for touching the end and to arc 2. The beneficial effect who so sets up is: the positioning piece 4 is arranged, when positioning is needed, the power source 42 outputs a shaft to push the positioning rod 43, the power source 42 can be arranged into a cylinder, an oil cylinder and other structures, the positioning rod 43 is abutted against the outer wall of the arc-shaped plate 2 at one end of the arc-shaped plate 2, so that the inner part of the back upper is tightly pressed on the arc-shaped plate 2, because when the inner part of the back upper is manually positioned in the traditional method, two hands are required to press the inner part of the aligned back upper and the middle position of the collar of the back upper, then the back upper inner part and the collar of the back upper are aligned and attached by moving towards two sides in sequence, the pressing position of the hands is identified through the identifier, the positioning piece is controlled to be pressed in sequence, the edge position can be aligned and attached, the operation of the whole structure is enabled to be more reasonable and effective, the identifier is preferably a photoelectric sensor, meanwhile, the structure is simple, the positioning effect is improved, the use stability of the whole structure is improved, and the subsequent sewing operation is facilitated.

As a further configuration of the present embodiment, a pressing rod 44 is slidably disposed on the positioning rod 43, a locking hole is disposed on the pressing rod 44, an adjusting through groove 431 is disposed on the positioning rod 43, a locking screw is inserted into the adjusting through groove 431, and the locking screw passes through the adjusting through groove 431 and is in threaded fit with the locking hole. The beneficial effect who so sets up is: set up like this, can carry out position control according to the back group of different styles inside, guarantee that depression bar 44 can contradict on arc 2 outer wall, simple structure simultaneously, the operation of being convenient for improves overall structure's result of use and suitability.

As a further configuration of the present embodiment, the end of the pressing rod 44 is bent to form a contact 45, and the radian of the end surface of the contact 45 is matched with the radian of the outer peripheral wall of the arc-shaped plate 2. The beneficial effect who so sets up is: set up like this, can be better contradict to back group lining to support 45 terminal surface radians of contact and 2 periphery wall radians looks adaptations of arc, can avoid crushing back group lining, avoid leaving the mar, simple structure does benefit to the realization simultaneously.

As a further configuration of the present embodiment, a buffer spring 46 is further provided so as to abut against between the positioning rod 43 and the arc plate 2. The beneficial effect who so sets up is: by means of the arrangement, the buffer spring 46 is used for avoiding overlarge output force of the power source 42, so that the contact 45 is supported to excessively abut against the inner side of the back upper, the inner surface of the back upper is scratched, and the use reliability of the integral structure is effectively improved.

As a further setting of this embodiment, be provided with mount pad 61 to the extension of sewing machine 3 on connection pad 21, be formed with location platform 62 on the mount pad 61, still slide along frame 1 direction of height on the mount pad 61 and be provided with the seat of tightening 63 and be used for the drive to be close to the ejection cylinder 65 of arc 2, the seat of tightening 63 sets up in location platform 62 below, it is provided with reset spring 66 to contradict between seat of tightening 63 and the location platform 62, the tightening piece sets up to clamping jaw 64, clamping jaw 64 sets up on the seat of tightening 63. The beneficial effect who so sets up is: set up like this, set the clamping jaw 64 with the fastener, when needs tighten up the vamp, through ejection cylinder 65, will tighten up seat 63 and rise the position that reachs can the centre gripping vamp, draw in clamping jaw 64, make clamping jaw 64 press from both sides at the vamp border, ejection cylinder 65 output shaft contracts, under reset spring 66's effect, it receives the pulling force to tighten up seat 63, thereby get off the vamp and make behind the shoes vamp collarband position compress tightly on arc 2, this kind of simple structure, do benefit to the realization, better stability has, overall structure's result of use is improved.

As a further configuration of the present embodiment, the line camera 8 is provided on the mount 61. The beneficial effect who so sets up is: by the arrangement, the edge of the arc-shaped plate 2 is close to, the data of the shape formed by the edge of the edge trimming piece 5 can be fully obtained, the accuracy of data acquisition is improved, and the use reliability of the equipment is improved.

As a further arrangement of the present embodiment, the driving mechanism 7 includes a first driving seat 71, a second driving seat 72, a third driving seat 73, a first driving motor 711, a second driving motor 721 and a third driving motor 731, the first driving motor 711 is disposed on the first driving seat 71, the second driving motor 721 is disposed on the second driving seat 72, the third driving motor 731 is disposed on the third driving seat 73, the first driving seat 71 is disposed on the rack 1, a first lead screw 712 is rotatably disposed on the first driving seat 71 along the width direction of the rack 1, the first lead screw 712 is in transmission connection with the first driving motor 711, the second driving seat 72 is slidably disposed on the first driving seat 71 and is in threaded engagement with the first lead screw 712, a second lead screw 722 is rotatably disposed on the second driving seat 72 along the length direction of the rack 1, the second lead screw 722 is in transmission connection with the second driving motor 721, the third driving seat 73 is slidably disposed on the second driving seat 72 and is in threaded fit with the second lead screw 722, and the connecting plate 21 is rotatably disposed on the third driving seat 73 through the rotating shaft 23 and is in transmission connection with the third driving motor 731. The beneficial effect who so sets up is: set up like this, drive arc 2 that can be convenient is close to or keeps away from sewing machine 3, can rotate simultaneously, sews up each position, and simple structure is convenient for maintain simultaneously, effectively improves overall structure's stability and result of use.

The above example is only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.