CN214244824U

CN214244824U - Automatic flanging device for front trouser pocket welting and sewing

Info

Publication number: CN214244824U
Application number: CN202120103091.7U
Authority: CN
Inventors: 沈素波
Original assignee: Changshu City Jinyuan Automation Equipment Sales Co ltd
Current assignee: Changshu City Jinyuan Automation Equipment Sales Co ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-09-21
Anticipated expiration: 2031-01-14

Abstract

An automatic flanging device for sewing the welt of a front trouser pocket, which comprises a machine base, the connecting plate and the aircraft nose, the aircraft nose includes the clamp plate, the left and right sides of clamp plate constitutes backward respectively has the extension board, the indent is established to the front end of clamp plate, establish the welt clamp plate in the indent, the rear of indent is provided with welt clamp plate seat, establish welt clamp plate cylinder on the connecting plate, welt clamp plate cylinder is connected with welt clamp plate seat, the turn-ups frame is established in the place ahead of welt clamp plate, the both ends constitute backward respectively about the turn-ups frame have the turn-ups connecting plate, the slot hole is established at turn-ups connecting plate middle part, establish the gasket in the slot hole, turn-ups connection fixed plate is established to the top of turn-ups connecting plate, turn-ups connection fixed plate presses on the gasket and is connected with the clamp plate through turn-ups connection fixed plate screw, form the clearance between turn-ups connection fixed plate and the clamp plate and make the turn-ups connecting plate can slide along the slot hole direction, there is the turn-ups cylinder on the extension board, the turn-ups cylinder is connected with the one end of turn-ups connecting plate. The processing efficiency of the front trouser pocket is improved, and the problem of folds in the manual flanging is eliminated.

Description

Automatic flanging device for front trouser pocket welting and sewing

Technical Field

The utility model belongs to the technical field of sewing equipment, concretely relates to automatic flanging device that closes of preceding trousers bag welt seam.

Background

Clothes trousers are one of the daily indispensable articles for use of people, trousers generally all have preceding trousers pocket and back trousers pocket, not only play the effect of carrying article, play the effect of decoration more, wherein an welt messenger trousers pocket border non-deformable can be sewed up usually to the opening part of preceding trousers pocket and the decorative action is played in wearing and tearing, preceding trousers pocket will be earlier bag cloth in the manufacture process, trousers piece and welt are sewed up together, sew up welt turn-ups back in adjacent position department again, it can make trousers piece and the deckle edge of welt hide to sew up like this, can make the welt behind the turn-ups more level and more smooth again. At present, the mode of manually sewing the back flanging and then sewing is often adopted for operation, so that the sewing efficiency is low, and the situations of folds and different sewing lengths can occur. Along with the development of sewing equipment, some devices which are manually fed and turned over and automatically sewn appear in the market, bag cloth, trousers pieces and welts are pressed and clamped to be conveyed to the lower part of a sewing machine for sewing, the sewing efficiency is greatly improved, the length of a sewing thread is unified, the problem that wrinkles still appear in manual turned-over edges is solved, the whole processing efficiency is influenced, and the actual requirements of manufacturers cannot be met.

In view of the above circumstances, there is a need for an automatic edge-folding device for sewing the welt of a front trouser pocket, which has a simple structure, is stable and reliable, and can realize automatic edge-folding. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic flanging device is sewed up to preceding trousers bag welt helps improving the automatic turn-ups function that the aircraft nose structure realized the welt, is favorable to further improving machining efficiency and eliminates the problem that the fold appears in the welt easily.

The utility model aims at reaching like this, an automatic flanging device is sewed up to preceding trousers pocket welt, including a frame, one with the fixed connecting plate of frame and one with the connecting plate fixed and with the frame cooperation aircraft nose of being connected, its characterized in that: the machine head comprises a press plate fixed with a connecting plate, the left side and the right side of the press plate are respectively backwards provided with an extension plate, the front end of the press plate is provided with a press groove, the press groove is internally provided with a welt press plate, the rear part of the press groove is rotatably provided with a welt press plate seat fixed with the welt press plate, the connecting plate is provided with a welt press plate cylinder, the welt press plate cylinder is in transmission connection with the welt press plate seat, the front part of the welt press plate is provided with a flanging frame, the left end and the right end of the flanging frame respectively backwards form a flanging connecting plate, the middle part of the flanging connecting plate is respectively provided with a long hole along the front and back direction, a group of gaskets are respectively arranged in the long holes, the upper parts of the flanging connecting plates are respectively provided with a flanging connecting and fixing plate, the flanging connecting and fixing plates are respectively pressed on the corresponding gaskets and fixedly connected with the press plate after penetrating through flanging connecting screws, the flanging connecting fixing plate and the pressing plate form a gap so that the flanging connecting plate can slide along the direction of the long hole, the extending plates are respectively fixed with a flanging cylinder, and the flanging cylinders are respectively and fixedly connected with one end of the corresponding flanging connecting plate.

In a specific embodiment of the present invention, the frame comprises a frame, a supporting shaft fixed to the frame, a pair of feeding cylinders fixed to the left and right sides of the frame, a pair of supporting frames rotatably disposed at the left and right ends of the supporting shaft and having one end hinged to the corresponding feeding cylinder, a pair of connecting rods fixed to the other end of the corresponding supporting frame and extending forward to be connected to the head, and a moving base fixed to the lower portion of the frame and fixed to the connecting plate, wherein the left and right ends of the frame are respectively folded upward to form a feeding cylinder fixing plate, the feeding cylinders are fixed to the corresponding feeding cylinder fixing plates by a pair of feeding cylinder screws, the front end of the frame is folded upward to form a supporting shaft fixing plate, the supporting shaft is fixed to the upper end of the supporting shaft fixing plate by a set of supporting shaft screws, the supporting shaft and the supporting frames are rotatably connected by a supporting frame bearing, the feeding cylinder is upwards provided with a feeding cylinder column, the end part of the feeding cylinder column is respectively hinged with one end of a corresponding support frame, the other end of the support frame is respectively fixedly connected with a corresponding connecting rod through a pair of support frame screws, the pressing plates are respectively upwards provided with a base connecting plate at positions corresponding to the connecting rods, the base connecting plate is provided with a hinged long hole along the front-back direction, one end of the connecting rod is respectively hinged with the corresponding hinged long hole through a connecting rod shaft, the movable base is fixed below the middle part of the frame through a group of movable base screws, one end of the movable base extends forwards and is provided with a connecting block at a position in front of a fixing plate of the feeding cylinder, the connecting plate is arranged above the connecting block, the connecting plate is provided with a connecting block pressing plate, and the connecting block pressing plate is provided with a pair of connecting block pressing plate screws, the connecting block pressing plate screw sequentially penetrates through the connecting block pressing plate, the connecting plate and the connecting block from top to bottom and then is fixedly connected with the moving seat.

In yet another embodiment of the present invention, a welt-pressing plate cylinder mounting plate is fixed to the connecting plate by a pair of welt-pressing plate cylinder mounting plate screws, a welt-pressing plate cylinder fixing plate is hinged to the front end of the welt-pressing plate cylinder mounting plate, a welt-pressing plate cylinder is fixed to the welt-pressing plate cylinder fixing plate by a welt-pressing plate cylinder screw, a welt-pressing plate cylinder is forwardly formed with a welt-pressing plate cylinder column, a cylinder column hinge plate is fixed to the end of the welt-pressing plate cylinder column, a welt-pressing plate base hinge plate is upwardly formed at each of left and right sides of the welt-pressing plate base, the welt-pressing plate base is rotatably supported on the welt-pressing plate base hinge plate at left and right ends thereof, a cylinder column connecting plate hinged to the cylinder column hinge plate is upwardly formed with the welt-pressing plate base, a welt-pressing plate base is forwardly formed with a welt-pressing plate, the welt pressing plate connecting plate is fixedly connected with the welt pressing plate through a pair of welt pressing plate connecting plate screws.

In another specific embodiment of the utility model, the turn-ups cylinder fixed with the extension board that corresponds through a pair of turn-ups cylinder screw respectively, the turn-ups cylinder constitute forward respectively and have a turn-ups cylinder post, turn-ups connecting plate rear end turn over upward respectively and have a turn-ups cylinder post connecting plate, turn-ups cylinder post fixed with the turn-ups cylinder post connecting plate that corresponds through a turn-ups cylinder post screw respectively.

In another specific embodiment of the present invention, a position below the flanging frame and located in the pressure groove is fixed with a flanging push plate, and the flanging push plate is fixed by a set of flanging push plate screws on the flanging frame at intervals and protrudes out of the flanging frame towards the rear side.

In still another specific embodiment of the present invention, the front side edge of the welt-pressing plate is bent downward along an oblique direction and is formed with anti-slip teeth at the edge.

In yet another specific embodiment of the present invention, the cloth clamping plate fixed to the extension plate is disposed below the pressing plate at the position of the left extension plate, and the cloth absorbing plate engaged with the cloth clamping plate and fixed to the working table is disposed below the pressing plate at the position of the right extension plate.

In a more specific embodiment of the present invention, the connecting plate is located at a position between the two extending plates and the front side edge of the connecting plate is fixedly connected to the pressing plate by a set of connecting plate screws.

In yet another specific embodiment of the present invention, the connecting plate has elasticity.

In a still more specific embodiment of the present invention, a non-slip edge is formed at the edge of the lower side of the pressing plate located at the front side of the pressing groove.

The utility model adopts the above structure after, beneficial effect who has: the flanging frame structure driven by the air cylinder is arranged at the head, so that automatic flanging in the welting processing process is realized, the processing efficiency of the front trouser pocket is improved, and the problem of folds which are easy to appear in manual flanging can be effectively solved.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic side view of the embodiment of fig. 1.

In the figure: 1. the automatic feeding device comprises a base, 11, a frame, 111, a feeding cylinder fixing plate, 112, a supporting shaft fixing plate, 12, a supporting shaft, 121, a supporting shaft screw, 13, a feeding cylinder, 131, a feeding cylinder column, 132, a feeding cylinder screw, 14, a supporting frame, 141, a supporting frame bearing, 142, a supporting frame screw, 15, a connecting rod, 151, a connecting rod shaft, 16, a moving seat, 161, a moving seat screw, 162, a connecting block, 163, a connecting block pressing plate and 164, a connecting block pressing plate screw; 2. the device comprises a connecting plate, 21, a welt pressing plate cylinder, 211, a welt pressing plate cylinder column, 2111, a cylinder column hinged plate, 212, a welt pressing plate cylinder screw, 22, a welt pressing plate cylinder mounting plate, 221, a welt pressing plate cylinder mounting plate screw, 222, a welt pressing plate cylinder fixing plate, 23, a welt pressing plate seat, 231, a cylinder column connecting plate, 232, a welt pressing plate connecting plate, 2321, a welt pressing plate connecting plate screw, 24, a welt pressing plate, 241, an anti-skid tooth and 25, a connecting plate screw; 3. the device comprises a machine head, 31, a pressure plate, 311, an extension plate, 312, a pressure groove, 313, a machine base connecting plate, 3131, a hinged long hole, 314, a welt pressure plate base hinged plate, 315, a skid-proof edge, 32, a flanging cylinder, 321, a flanging cylinder column, 3211, a flanging cylinder column screw, 322, a flanging cylinder screw, 33, a flanging frame, 331, a flanging connecting plate, 3311, a long hole, 3312, a gasket, 3313, a flanging cylinder column connecting plate, 332, a flanging connecting fixing plate, 333, a flanging connecting fixing plate screw, 334, a flanging push plate, 3341 and a flanging push plate screw; 4. a cloth clamping plate; 5. a cloth absorbing plate.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, any concept related to the directions or orientations of up, down, left, right, front and rear is based on the position state of fig. 1, and thus it should not be understood as a specific limitation to the technical solution provided by the present invention.

Referring to fig. 1 and 2, the present invention relates to an automatic flanging device for front trouser pocket welt stitching, comprising a frame 1, a connecting plate 2 fixed with the frame 1, and a head 3 fixed with the connecting plate 2 and connected with the frame 1 in a matching manner, wherein the head 3 comprises a pressing plate 31 fixed with the connecting plate 2, the left and right sides of the pressing plate 31 are respectively formed with an extending plate 311 backwards, the front end of the pressing plate 31 is provided with a pressing groove 312, the pressing groove 312 is internally provided with a welt pressing plate 24, the rear of the pressing groove 312 is rotatably provided with a welt pressing plate seat 23 fixed with the welt pressing plate 24, the connecting plate 2 is provided with a welt pressing plate cylinder 21, the welt pressing plate cylinder 21 is in transmission connection with the welt pressing plate seat 23, the front of the welt pressing plate 24 is provided with a flanging frame 33, the left and right ends of the flanging frame 33 are respectively formed with a flanging connecting plate 331 backwards, a long hole 3311 is respectively formed in the middle of the flange connecting plate 331 along the front-rear direction, a set of gaskets 3312 is respectively disposed in the long hole 3311, a flange connecting and fixing plate 332 is respectively disposed above the flange connecting plate 331, the flange connecting and fixing plate 332 is respectively pressed against the corresponding gasket 3312 and fixedly connected with the pressure plate 31 after penetrating through the gasket 3312 via a flange connecting and fixing screw 333, a gap is formed between the flange connecting and fixing plate 332 and the pressure plate 31 so that the flange connecting plate 331 can slide along the long hole 3311, a flange cylinder 32 is respectively fixed on the extension plate 311, and the flange cylinder 32 is respectively fixedly connected with one end of the corresponding flange connecting plate 331.

In this embodiment, the machine base 1 includes a frame 11, a supporting shaft 12 fixed to the frame 11, a pair of feeding cylinders 13 fixed to left and right sides of the frame 11, a pair of supporting frames 14 rotatably installed at left and right ends of the supporting shaft 12, respectively, and having one end hinged to the corresponding feeding cylinder 13, a pair of connecting rods 15 fixed to the other end of the corresponding supporting frame 14, respectively, and extending forward to connect with the machine head 3, and a moving base 16 fixed to a lower side of the frame 11 and fixed to the connecting plate 2, wherein a feeding cylinder fixing plate 111 is folded upward at left and right ends of the frame 11, the feeding cylinders 13 are fixed to the corresponding feeding cylinder fixing plates 111 by a pair of feeding cylinder screws 132, a supporting shaft fixing plate 112 is folded upward at a front end of the frame 11, the supporting shaft 12 is fixed to an upper end of the supporting shaft fixing plate 112 by a set of supporting shaft screws 121, the supporting shaft 12 and the supporting frame 14 are rotatably connected by a supporting frame bearing 141, the feeding cylinder 13 is upwardly formed with a feeding cylinder column 131, the end of the feeding cylinder column 131 is hinged to one end of the corresponding supporting frame 14, the other end of the supporting frame 14 is fixedly connected to the corresponding connecting rod 15 by a pair of supporting frame screws 142, the pressing plate 31 is upwardly formed with a base connecting plate 313 at a position corresponding to the connecting rod 15, the base connecting plate 313 is opened with a hinge long hole 3131 along the front-rear direction, one end of the connecting rod 15 is hinged to the corresponding hinge long hole 3131 by a connecting rod shaft 151, the movable base 16 is fixed below the middle of the frame 11 by a set of movable base screws 161, one end of the movable base 16 extends forward and is provided with a connecting block 162 at a position in front of the feeding cylinder fixing plate 111, the connecting plate 2 is arranged above the connecting block 162, a connecting block pressing plate 163 is arranged on the connecting plate 2, a pair of connecting block pressing plate screws 164 is arranged on the connecting block pressing plate 163, and the connecting block pressing plate screws 164 sequentially penetrate through the connecting block pressing plate 163, the connecting plate 2 and the connecting block 162 from top to bottom and then are fixedly connected with the moving seat 16.

With reference to fig. 1, a welt-pressing plate cylinder mounting plate 22 is fixed on the connecting plate 2 by a pair of welt-pressing plate cylinder mounting plate screws 221, a welt-pressing plate cylinder fixing plate 222 is hinged at the front end of the welt-pressing plate cylinder mounting plate 22, the welt-pressing plate cylinder 21 is fixed on the welt-pressing plate cylinder fixing plate 222 by welt-pressing plate cylinder screws 212, the welt-pressing plate cylinder 21 is forwardly formed with a welt-pressing plate cylinder post 211, a cylinder post hinge plate 2111 is fixed at the end of the welt-pressing plate cylinder post 211, the pressing plate 31 is upwardly formed with a welt-pressing plate seat hinge plate 314 at the left and right sides of the welt-pressing plate seat 23, the left and right ends of the welt-pressing plate seat 23 are rotatably supported on the welt-pressing plate seat hinge plate 314, the welt-pressing plate seat 23 is upwardly formed with a cylinder post connecting plate 231 hinged with the cylinder post hinge plate 2111, the welt presser plate base 23 is formed forward with a welt presser plate connecting plate 232, and the welt presser plate connecting plate 232 is fixedly connected to the welt presser plate 24 by a pair of welt presser plate connecting plate screws 2321.

In this embodiment, the flanging cylinders 32 are respectively fixed to the corresponding extending plates 311 through a pair of flanging cylinder screws 322, the flanging cylinders 32 respectively form a flanging cylinder post 321 forward, the rear ends of the flanging connecting plates 331 are respectively turned over upward to form a flanging cylinder post connecting plate 3313, and the flanging cylinder posts 321 are respectively fixed to the corresponding flanging cylinder post connecting plates 3313 through flanging cylinder post screws 3211.

Further, a flanging push plate 334 is fixed below the flanging frame 33 and at a position in the pressure groove 312, and the flanging push plate 334 is fixed by a set of flanging push plate screws 3341 arranged at intervals on the flanging frame 33 and protrudes out of the flanging frame 33 towards the rear side.

Further, the front side edge of the welt pressing plate 24 is bent obliquely downward and is formed with an anti-slip tooth 241 at the edge, and an anti-slip edge 315 is formed at the edge of the lower side of the pressing plate 31 at the front side of the pressing groove 312.

In this embodiment, a cloth clamping plate 4 fixed to the extending plate 311 is disposed below the pressing plate 31 at the position of the left extending plate 311, and a cloth absorbing plate 5 matched with the cloth clamping plate 4 and fixed to the working table is disposed below the pressing plate 31 at the position of the right extending plate 311.

Further, the aforementioned connecting plate 2 is located at a position between the two extending plates 311 and the front side edge thereof is fixedly connected with the pressure plate 31 by a set of connecting plate screws 25, and the aforementioned connecting plate 2 has elasticity.

Referring to fig. 1 and fig. 2, the device is fixed on the moving mechanism of the sewing machine through the moving seat 16, and the flanging cylinder 32, the welting platen cylinder 21 and the feeding cylinder 13 are connected to the air source respectively, so that the cloth absorbing plate 5 is communicated with the cloth absorbing mechanism. When the device is needed to perform flanging and sewing, the support frame 14 is pulled by the feeding cylinder 13 to rotate anticlockwise around the support shaft 12, the machine head 3 is further supported by the connecting rod 15, the machine head 3 is separated from the working table, then the trouser sheets and the pocket cloth are overlapped up and down at the position of the cloth absorbing plate 5, the trouser sheets and the pocket cloth are absorbed at the preset position of the cloth absorbing plate 5, the device is moved to the upper part of the cloth absorbing plate 5 through the moving mechanism, the cloth clamping plate 4 is inserted into the lower part of the cloth absorbing plate 5 in the moving process, the support frame 14 is pushed by the feeding cylinder 13 to rotate clockwise around the support shaft 12, the pressure plate 31 of the machine head 3 is pressed on the trouser sheets and the pocket cloth, then the welt pressure plate seat 23 is pulled by the welt pressure plate cylinder 21 to rotate anticlockwise and the welt pressure plate 24 is turned upwards, the welt is placed at the position above the flanging frame 33 corresponding to the trouser sheets and the pocket cloth, the welt pressing plate cylinder 21 is driven to push the welt pressing plate seat 23 to rotate clockwise and press the anti-skid teeth 241 of the welt pressing plate 24 on the welt, the moving mechanism drives the device to move to the lower part of the sewing machine and sew the trousers piece, the pocket cloth and the welt at the position between the pressing plate 31 and the flanging frame 33, in the moving process of the moving mechanism, the cloth clamping plate 4 is drawn out from the lower part of the cloth sucking plate 5 and clamps the trousers piece and the pocket cloth to move together, after the first sewing is completed, the welt pressing plate cylinder 21 pulls the welt pressing plate seat 23 to rotate anticlockwise and turns the welt pressing plate 24 upwards, the flanging frame 33 and the flanging pushing plate 334 are pulled by the flanging cylinder 32 to move backwards, the welt is flanged backwards along the sewing thread under the pushing of the flanging pushing plate 334, the sewing machine carries out the second sewing along the flanged sewing thread again, thereby realizing the automatic flanging function of the device, the processing efficiency is effectively improved.

Claims

1. The utility model provides an automatic flanging device is sewed up to preceding trousers pocket welt, includes a frame (1), one and frame (1) fixed connecting plate (2) and one with connecting plate (2) fixed and with frame (1) cooperation aircraft nose (3) be connected, its characterized in that: the machine head (3) comprises a pressing plate (31) fixed with a connecting plate (2), the left side and the right side of the pressing plate (31) are respectively backwards provided with an extension plate (311), the front end of the pressing plate (31) is provided with a pressing groove (312), a welt pressing plate (24) is arranged in the pressing groove (312), the rear part of the pressing groove (312) is rotatably provided with a welt pressing plate seat (23) fixed with the welt pressing plate (24), the connecting plate (2) is provided with a welt pressing plate cylinder (21), the welt pressing plate cylinder (21) is in transmission connection with the welt pressing plate seat (23), the front part of the welt pressing plate (24) is provided with a flanging frame (33), the left end and the right end of the flanging frame (33) are respectively backwards provided with a flanging connecting plate (331), the middle part of the flanging connecting plate (331) is respectively provided with a long hole (3311) along the front and back directions, the utility model discloses a flanging press, including slot hole (3311), turn-ups connecting plate (331), turn-ups cylinder (32) and the one end fixed connection of the turn-ups connecting plate (331) that corresponds are provided with a set of gasket (3312) respectively in the slot hole (3311), the top of turn-ups connecting plate (331) be provided with a turn-ups respectively and connect fixed plate (332), this turn-ups connect fixed plate (332) press on corresponding gasket (3312) respectively and pass gasket (3312) back and clamp plate (31) fixed connection through turn-ups connection fixed plate screw (333), turn-ups connect and form the clearance between fixed plate (332) and clamp plate (31) and make turn-ups connecting plate (331) can slide along slot hole (3311) direction, extension plate (311) on be fixed with a turn-ups cylinder (32) respectively with the one end fixed connection of the turn-ups connecting plate (331) that corresponds.

2. The automatic flanging device for welting and sewing of the front trouser pocket according to claim 1, characterized in that the machine base (1) comprises a machine frame (11), a supporting shaft (12) fixed with the machine frame (11), a pair of feeding cylinders (13) fixed on the left and right sides of the machine frame (11) respectively, a pair of supporting frames (14) rotatably arranged on the left and right ends of the supporting shaft (12) respectively and one end of each supporting frame is hinged with the corresponding feeding cylinder (13) respectively, a pair of connecting rods (15) fixed on the other end of the corresponding supporting frame (14) respectively and extending forward and connected with the machine head (3), and a moving seat (16) fixed below the machine frame (11) and fixed with the connecting plate (2), the left and right ends of the machine frame (11) are respectively turned upwards to form a feeding cylinder fixing plate (111), the feeding cylinders (13) are fixed on the corresponding feeding cylinder fixing plates (111) respectively through a pair of feeding cylinder screws (132), the front end of the frame (11) is upwards turned and folded to form a supporting shaft fixing plate (112), the supporting shaft (12) is fixed at the upper end part of the supporting shaft fixing plate (112) through a group of supporting shaft screws (121), the supporting shaft (12) and the supporting frame (14) are respectively in rotary connection through a supporting frame bearing (141), the feeding cylinder (13) upwards forms a feeding cylinder column (131), the end part of the feeding cylinder column (131) is respectively hinged with one end of the corresponding supporting frame (14), the other end of the supporting frame (14) is respectively fixedly connected with the corresponding connecting rod (15) through a pair of supporting frame screws (142), the pressing plate (31) respectively upwards forms a frame connecting plate (313) at the position corresponding to the connecting rod (15), and the frame connecting plate (313) is provided with a hinged long hole (3131) along the front-back direction, one end of each connecting rod (15) is hinged to the corresponding hinged long hole (3131) through a connecting rod shaft (151), the moving seat (16) is fixed to the lower portion of the middle of the rack (11) through a group of moving seat screws (161), one end of the moving seat (16) extends forwards, a connecting block (162) is arranged at the position in front of the feeding cylinder fixing plate (111), the connecting plate (2) is arranged above the connecting block (162), a connecting block pressing plate (163) is arranged on the connecting plate (2), a pair of connecting block pressing plate screws (164) is arranged on the connecting block pressing plate (163), and the connecting block pressing plate screws (164) sequentially penetrate through the connecting block pressing plate (163), the connecting plate (2) and the connecting block (162) from top to bottom and then are fixedly connected with the moving seat (16).

3. The automatic flanging device for the welt stitching of the front trouser pocket according to claim 1 is characterized in that a welt press plate cylinder mounting plate (22) is fixed on the connecting plate (2) through a pair of welt press plate cylinder mounting plate screws (221), a welt press plate cylinder fixing plate (222) is hinged at the front end of the welt press plate cylinder mounting plate (22), the welt press plate cylinder (21) is fixed on the welt press plate cylinder fixing plate (222) through welt press plate cylinder screws (212), the welt press plate cylinder (21) is forwardly formed with a welt press plate cylinder column (211), a cylinder column hinged plate (2111) is fixed at the end of the welt press plate cylinder column (211), the press plate (31) is respectively upwards formed with a welt press plate seat hinged plate (314) at the positions of the left side and the right side of the welt press plate seat (23), the left end and the right end of the welt press plate seat hinged plate seat (23) are rotatably supported on the welt press plate seat hinged plate (314), the welt pressing plate seat (23) upwards forms a cylinder column connecting plate (231) hinged with the cylinder column hinged plate (2111), the welt pressing plate seat (23) forwards forms a welt pressing plate connecting plate (232), and the welt pressing plate connecting plate (232) is fixedly connected with the welt pressing plate (24) through a pair of welt pressing plate connecting plate screws (2321).

4. The automatic flanging device for the welt stitching of the front trouser pocket according to the claim 1 is characterized in that the flanging cylinder (32) is respectively fixed with the corresponding extending plate (311) through a pair of flanging cylinder screws (322), the flanging cylinder (32) is respectively formed with a flanging cylinder column (321) forward, the rear end of the flanging connecting plate (331) is respectively provided with a flanging cylinder column connecting plate (3313) which is turned upwards, and the flanging cylinder column (321) is respectively fixed with the corresponding flanging cylinder column connecting plate (3313) through a flanging cylinder column screw (3211).

5. The automatic flanging device for front trouser pocket welt stitching according to claim 1 is characterized in that a flanging push plate (334) is fixed at a position below the flanging frame (33) and in the pressure groove (312), the flanging push plate (334) is fixed by a group of flanging push plate screws (3341) arranged on the flanging frame (33) at intervals and protrudes out of the flanging frame (33) towards the back side.

6. An automatic welt-seaming device for front trouser pockets according to claim 1 characterised in that the front side of the welt-seaming panel (24) is bent obliquely downwards and is formed with anti-slip teeth (241) at the edge.

7. The automatic flanging device for welt stitching of front trouser pockets according to claim 1, characterized in that a cloth clamping plate (4) fixed with the extension plate (311) is arranged below the pressure plate (31) at the position of the left extension plate (311), and a cloth absorbing plate (5) matched with the cloth clamping plate (4) and fixed on the working table is arranged below the pressure plate (31) at the position of the right extension plate (311).

8. An automatic welt-seaming device for front pants pockets according to claim 1, characterised in that the connecting plate (2) is located between the two extension plates (311) and its front edge is fixedly connected to the pressure plate (31) by means of a set of connecting plate screws (25).

9. An automatic welt-seaming device for front trouser pockets according to claim 1 characterised in that the connecting plate (2) is elastic.

10. An automatic welt-seaming device for front trouser pockets according to claim 1 characterised in that a non-slip edge (315) is formed at the edge of the lower part of the pressure plate (31) at the front side of the pressure groove (312).