CN210420415U - Embedding and clamping machine with auxiliary feeding device - Google Patents

Abstract

The utility model discloses an embedding machine with supplementary material feeding unit, including workstation, sewing machine head, slide, thread trimming mechanism and presser foot subassembly. The installation bedplate of the workbench is horizontally and fixedly arranged on the upper end of the rear part of the frame. The sewing machine head is fixedly arranged on the mounting table plate, a front cantilever of the sewing machine head extends forwards out of the mounting table plate, and the needle plate is fixedly arranged on the left part of the cantilever and is positioned below the needle. The pull cylinder is used for splicing and curling the two pieces of cloth. The thread cutting mechanism is used for cutting off threads on the sewn cloth. The presser foot component is arranged on the front part of the sewing machine head, is positioned above the needle plate of the cantilever and is matched with the feed dog in the cantilever for feeding. The key points are as follows: also comprises an auxiliary feeding device. The auxiliary feeding device comprises a transmission device and a tug device. The tug device comprises a feeding synchronous belt, and the feeding synchronous belt of the tug device is driven by a main shaft on the head of the sewing machine head through a transmission device to feed.

Description

Embedding and clamping machine with auxiliary feeding device

Technical Field

The utility model relates to a tailoring equipment technical field specifically is a bury press from both sides machine that has supplementary material feeding unit for overlap joint sewing of clothing.

Background

The embedding machine is also called a wrist bending machine, a three-needle chain sewing machine, a three-needle rolling sewing machine or an arm type double-thread ring sewing machine, and the like, and the embedding generally refers to a process for sewing a side bone of the jacket or a sewing outer bone of the lower jacket. The special cantilever cylindrical structure of the embedding machine is particularly suitable for the lap joint sewing of cylindrical parts such as sleeves, trousers and the like. The existing felling and clamping machine generally comprises a sewing machine head, a pull cylinder (used for splicing and curling two pieces of cloth), a thread cutting mechanism (used for cutting off threads on the sewn cloth), a presser foot component (used for feeding materials in cooperation with a feed dog of the sewing machine) and an auxiliary feeding device, wherein the stability of the auxiliary feeding device can influence the sewing quality, so that equipment manufacturers design different auxiliary feeding devices to ensure the continuity and stability of the feeding process, and the sewing quality is improved.

Chinese patent document (patent application number: 201420137880.2) discloses an auxiliary feeding mechanism of a wrist bending machine, which comprises a feeding wheel assembly, a needle plate, a feeding tooth assembly and a presser foot assembly, wherein the feeding tooth assembly is arranged on a feeding rod; the needle plate covers the feeding tooth assembly, feeding teeth of the feeding tooth assembly extend upwards from an opening of the needle plate, the feeding teeth are driven by the belt pulley, and no interference exists between the feeding teeth and the needle plate; the needle plate is fixedly connected with the shell; a presser foot component is movably arranged above the needle plate; the presser foot component is fixedly connected with the presser foot rod, and a needle hole groove on a presser foot plate of the presser foot component is not interfered with a machine needle; the presser foot component can move up and down relative to the needle plate by driving the presser foot rod through the handle; a feeding wheel component is arranged on one side above the needle plate; a wheel bracket of the feeding wheel assembly is fixedly connected with a longitudinally arranged adjusting shaft, and a feeding wheel of the feeding wheel assembly is obliquely abutted against one end of the needle plate; the feeding wheel assembly comprises a wheel bracket, and the top end of the wheel bracket is fixedly connected with the adjusting shaft; the wheel bracket is connected with the feeding wheel through an inclined part of the wheel bracket; the feeding wheel and the top connecting end of the wheel bracket form a transverse space. This patent is enough to make the interval between feeding wheel and presser foot and the pay-off tooth reduce for the pay-off of pay-off tooth has a fine receptivity with the pay-off of feeding wheel, makes easily climbing, crosses the sewing of joint, and easily turns and makes up. The structure has the problem of small contact area with cloth, and the feeding process is easy to slip or block, thereby influencing the sewing quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, have supplementary material feeding unit be favorable to improving the burial machine of making up the quality.

Realize the utility model discloses the basic technical scheme of purpose is: a clamp burying machine with an auxiliary feeding device comprises a workbench, a sewing machine head, a pull cylinder, a thread cutting mechanism and a presser foot assembly. The workbench comprises a rack and a mounting bedplate. The mounting bedplate is horizontally and fixedly arranged on the upper end of the rear part of the frame. The sewing machine head is fixedly arranged on the mounting table plate, a front cantilever of the sewing machine head extends forwards out of the mounting table plate, and the needle plate is fixedly arranged on the left part of the cantilever and is positioned below the needle. The pull cylinder is fixedly arranged on a cantilever of the sewing machine head and positioned on the right side of the machine needle, and is used for splicing and curling two pieces of cloth. The thread cutting mechanism is arranged on the left end of a cantilever of the sewing machine head and positioned on the left side of the needle, and is used for cutting off threads on the sewn cloth. The presser foot component is arranged on the front part of the sewing machine head, is positioned above the needle plate of the cantilever and is matched with the feed dog in the cantilever for feeding. The structure is characterized in that: also comprises an auxiliary feeding device. The auxiliary feeding device comprises a transmission device and a tug device. The tug device comprises a feeding synchronous belt, and the feeding synchronous belt of the tug device is driven by a main shaft on the head of the sewing machine head through a transmission device to feed.

The technical scheme based on the basic technical scheme is as follows: the tug boat device also comprises a driving wheel, a second driven wheel and a third driven wheel. The feeding synchronous belt is arranged around the driving wheel, the second driven wheel and the third driven wheel, the driving wheel is driven by the driving device to rotate, the second driven wheel and the third driven wheel press the feeding synchronous belt on the cloth together, and the feeding synchronous belt and the cloth are subjected to surface contact feeding.

The technical scheme based on the corresponding technical schemes is as follows: the transmission device comprises a transmission box body, a rotating arm, an eccentric bearing seat, a crank, a linkage arm, a transmission sleeve, an output shaft, a rotating arm connecting shaft, a crank front mounting shaft, a crank rear mounting shaft, a front crank connecting rod, a front crank shaft, a rear crank connecting rod, a rear crank shaft, a universal coupling and a driving shaft.

The right part of the lower side of the transmission box body is provided with a rotating arm hole which penetrates through the inside and the outside of the box body. The sewing machine head is provided with a through hole corresponding to the rotating arm hole. The transmission case body is fixedly arranged on the rear part of the sewing machine head, and the interior of the transmission case body is communicated with the interior of the sewing machine head through the rotating arm hole and the through hole on the sewing machine head. The eccentric bearing seat is arranged on a main shaft on a machine head of the sewing machine head in a transmission way. The eccentric wheel part of the eccentric bearing seat is rotatably arranged on the lower end of the rotating arm through a corresponding bearing. The upper part of the rotating arm extends into the transmission box body. The rotating arm connecting shaft is fixedly connected with the upper end of the rotating arm from the middle part of the rotating arm along the front-back direction. The front end and the rear end of the right end of the linkage arm are rotatably connected with a rotating arm connecting shaft, and the corresponding part of the upper part of the rotating arm is positioned between the two ends of the right end of the linkage arm. The front end and the rear end of the left end of the front crank shaft are hinged with the transmission sleeve.

The front part of the output shaft is rotatably arranged on the front part of the left part of the transmission case body through a corresponding bearing and extends forwards out of the transmission case body. The rear part of the output shaft is rotatably arranged on the rear part of the left part of the transmission case body through a one-way bearing. The transmission sleeve is in transmission connection with the output shaft through a one-way bearing.

The front mounting shaft of the crank and the rear mounting shaft of the crank are respectively and rotatably arranged on the front part of the right part and the rear part of the right part of the transmission box body, and the rear mounting shaft of the crank extends out of the transmission box body backwards. The crank is in a U shape with an opening vertically towards the left. The front side and the rear side of the right part of the crank are respectively and fixedly connected with a crank front mounting shaft and a crank rear mounting shaft in a transmission way.

The front part of the front crank shaft is fixedly arranged on the front end head of the left part of the crank and extends backwards. The rear part of the rear crank shaft is fixedly arranged on the rear end head of the left part of the crank and extends forwards. The right end of the front crank connecting rod is rotatably connected to the front end of the rotating arm connecting shaft. The left end of the front crank connecting rod is rotatably connected to the rear end of the front crank shaft. The right end of the rear crank connecting rod is rotatably connected to the rear end of the rotating arm connecting shaft. The right end of the rear crank connecting rod is rotatably connected to the front end of the rear crank shaft. The output shaft is connected with the driving shaft in a transmission way through a universal coupling.

The technical scheme based on the corresponding technical schemes is as follows: the tug boat apparatus further comprises a swing arm assembly. The second driven wheel and the third driven wheel are lifted or pressed down by the swing arm assembly.

The technical scheme based on the corresponding technical schemes is as follows: the tug boat device further comprises a mounting seat assembly, a driven wheel mounting seat and a first driven wheel. The driving device comprises a driving shaft. The mounting seat assembly comprises a connecting seat, a mounting seat and a front cover plate. The connecting base is fixedly connected on the left side of the front part of the upper part of the sewing machine head from the right part of the connecting base and extends out leftwards. The upper part of the mounting seat is hinged on the left part of the connecting seat. The front cover plate is fixedly arranged on the front side of the mounting seat. A driving shaft of the driving device is rotatably arranged on the upper part of the front cover plate and the upper part of the mounting seat through corresponding bearings, and a rotating axis of the driving device is horizontally arranged along the front-back direction. The driving wheel is coaxially arranged on the driving shaft in a transmission way and is positioned between the front cover plate and the mounting seat. The first driven wheel is rotatably arranged between the rear side of the lower part of the front cover plate and the front side of the lower part of the mounting seat.

The driven wheel mounting base comprises a front driven wheel mounting plate and a rear driven wheel mounting plate. The front driven wheel mounting plate is provided with a front limit pin at the front left part. The left part of the rear side of the rear driven wheel mounting plate is provided with a rear limit pin. The front driven wheel mounting plate and the rear driven wheel mounting plate are fixedly connected.

The second driven wheel is rotatably arranged between the rear right part of the front driven wheel mounting plate and the front right part of the rear driven wheel mounting plate.

The third driven wheel is rotatably arranged between the rear left part of the front driven wheel mounting plate and the front left part of the rear driven wheel mounting plate.

The swing arm assembly comprises a front connecting arm, a front adjusting arm, a rear connecting arm, a rear adjusting arm, a swing arm driving cylinder and a swing arm driving frame. The front connecting arm is rotatably arranged on the lower part of the front cover plate from the left part and is coaxially arranged with the first driven wheel. The rear connecting arm is rotatably arranged on the lower part of the mounting seat by the left part of the rear connecting arm and is coaxially arranged with the first driven wheel. The front adjusting arm is fixedly arranged on the right part of the front connecting arm. The rear adjusting arm is fixedly arranged on the right part of the rear connecting arm.

The driven wheel mounting seat is rotatably arranged between the rear side of the right end of the front adjusting arm and the front side of the right end of the rear adjusting arm. The front driven wheel mounting plate is rotatably arranged on the rear side of the right end of the front adjusting arm from the middle of the front side of the front driven wheel mounting plate, the rear driven wheel mounting plate is rotatably arranged on the front side of the right end of the front adjusting arm from the middle of the rear side of the rear driven wheel mounting plate, and the rotation axis of the second driven wheel and the rotation axis of the third driven wheel are respectively positioned on the right side and the left side of the driven wheel mounting seat.

The right end of the front adjusting arm is provided with a front adjusting hole which penetrates through the front and the back of the front adjusting arm, the front adjusting hole is an arc-shaped waist-shaped hole, and the circle center of the front adjusting hole is positioned on the rotating axis of the driven wheel mounting seat. The front limit pin on the front driven wheel mounting plate is arranged in the front adjusting hole in a sliding mode.

The right end of the rear adjusting arm is provided with a rear adjusting hole which penetrates through the front and the rear of the rear adjusting arm, the rear adjusting hole is an arc-shaped waist-shaped hole, and the circle center of the rear adjusting hole is positioned on the rotating axis of the driven wheel mounting seat. The rear limiting pin on the rear driven wheel mounting plate is arranged in the rear adjusting hole in a sliding mode.

The feeding synchronous belt is arranged around the driving wheel, the first driven wheel, the second driven wheel and the third driven wheel.

The swing arm driving cylinder is hinged to the right side of the upper portion of the mounting seat through the upper end of the cylinder body, and a piston rod of the swing arm driving cylinder extends downwards. The swing arm driving frame is fixedly arranged at the lower end of a piston rod of the swing arm driving cylinder, and the lower part of the swing arm driving frame is hinged to the front mediating arm and the rear mediating arm, so that the swing arm driving cylinder drives the front mediating arm and the rear mediating arm to synchronously lift or synchronously press through the swing arm driving frame.

The technical scheme based on the corresponding technical schemes is as follows: the auxiliary feeding device further comprises a tensioning device, and the tensioning device is used for keeping the feeding synchronous belt in a tensioning state.

The technical scheme based on the corresponding technical schemes is as follows: the tensioning device of the auxiliary feeding device comprises a pressing wheel, a pressing swing arm, a tension spring seat, a tension spring and a swing arm mounting plate. The swing arm mounting plate is fixedly arranged on the mounting base component of the tug device. The pressing swing arm is arranged between the swing arm mounting plate and the mounting seat component in a rotating mode from the middle of the pressing swing arm, and the pressing swing arm is provided with a tension spring connecting plate which extends backwards out of the swing arm mounting plate. The tension spring seat is fixedly arranged on the rear side of the mounting seat and is positioned above the swing arm mounting plate. The tension spring seat is provided with waist-shaped holes which penetrate through the tension spring seat in the left-right direction, and a tension spring pin shaft is arranged in the waist-shaped hole of the tension spring seat. And a pin shaft adjusting screw is arranged on the tension spring seat. The tension spring pin shaft penetrates through the corresponding part of the tension spring seat and then extends into the kidney-shaped hole to be screwed in the screw hole on the tension spring pin shaft, so that the position of the tension spring pin shaft in the left-right direction is adjusted. The extension spring sets up between the extension spring connecting plate that compresses tightly the swing arm and extension spring round pin axle, is in tensile state. The pressing wheel is rotatably arranged on the front side of the lower end of the pressing swing arm, and presses the outer side of the feeding synchronous belt downwards from the upper part, so that the feeding synchronous belt is always kept in a tensioning state.

The utility model discloses following beneficial effect has: (1) the utility model discloses an embedding machine with supplementary material feeding unit carries the cloth through supplementary material feeding unit is steady, is favorable to improving the quality of making up, makes up the even neat of back stitch. The power source of the auxiliary feeding device and the sewing machine head are energy-saving, the synchronism is good, the sewing and dragging synchronization is guaranteed, and the sewing quality is further improved.

(2) The utility model discloses an embedding presss from both sides supplementary material feeding unit of machine is equipped with adjusting device, through the height that changes regulating arm right-hand member locking position, changes the height of articulate left end both ends head to the height position of crank axle and back crank axle before changing finally realizes output shaft slew velocity's regulation, adapts to the pay-off demand of different elasticity cloth, and the unity of stitch seam is made in the guarantee, is favorable to improving and makes up the quality.

(3) The utility model discloses an embedding clamp machine's supplementary material feeding unit is equipped with the second from driving wheel and third from the driving wheel, makes the pay-off hold-in range compress tightly on the cloth from driving wheel and third through the second, greatly increased the area of contact of pay-off hold-in range and cloth, the pay-off is stable.

(4) The utility model discloses an bury supplementary material feeding unit of press from both sides machine is equipped with the tight device that rises, can adjust the tight degree that rises, guarantees that the pay-off hold-in range remains good tight state that rises all the time, prevents that the pine from taking off and skidding, has further improved the reliability of pay-off. Meanwhile, the tensioning device adopts a mode of pressing downwards from top to bottom, the height of the feeding synchronous belt at the right end can be reduced, the feeding synchronous belt can surround the second driven wheel in a larger area, on one hand, the transmission is reliable, the slippage is prevented, on the other hand, the second driven wheel is favorable for being closer to a needle, and the turning sewing is convenient.

Drawings

Fig. 1 is a schematic structural view of the felling and clamping machine with the auxiliary feeding device of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a right-side view of fig. 1.

Fig. 4 is a schematic top view of fig. 1.

Fig. 5 is a schematic view as viewed from the upper right front of fig. 1.

Fig. 6 is a schematic view when viewed from the front left upper side of fig. 1.

Fig. 7 is a schematic view of the transmission of the auxiliary feeding device as viewed from above in fig. 1.

Fig. 8 is a schematic structural view of a transmission device of the auxiliary feeding device as viewed from the left rear upper side of fig. 1.

Fig. 9 is a schematic structural view of a transmission device of the auxiliary feeding device as viewed from the front right below of fig. 1.

Fig. 10 is a schematic view of the auxiliary feeding device with the casing removed from the transmission device, as viewed from the upper left side of fig. 1.

Fig. 11 is a schematic structural view of the auxiliary feeding device with the casing removed from the transmission device, as viewed from the front right below in fig. 1.

Fig. 12 is a schematic view of the structure of the adjusting arm of the adjusting device.

Fig. 13 is a schematic structural view of a rotating arm connecting shaft, a crank front mounting shaft, a crank rear mounting shaft, a front crank connecting rod, a front crank shaft, a rear crank connecting rod and a rear crank shaft of the transmission device, as viewed from above in fig. 1.

Fig. 14 is an enlarged schematic structural view of the tug boat apparatus as viewed from the rear of fig. 1.

Fig. 15 is an enlarged schematic structural view of the upper tug apparatus as viewed from the upper right rear side of fig. 1.

Fig. 16 is an enlarged schematic structural view of the upper tug gear device as viewed from the left rear lower side of fig. 1.

Fig. 17 is an enlarged structural view of a mount assembly of the tug mounting apparatus, as viewed from the upper right rear side of fig. 1.

Fig. 18 is an enlarged structural schematic view of the tensioning device when viewed from the front left and the top of fig. 1.

Fig. 19 is an enlarged schematic structural view of the second driven wheel, the third driven wheel, and the driven wheel mounting base of the tug boat apparatus as viewed from the upper right front of fig. 1.

The reference numbers in the drawings are:

a workbench 1, a frame 1-1, a mounting bedplate 1-2,

a sewing machine head 2, a cantilever 2-1, a needle plate 2-2,

the pulling cylinder 3 is used for pulling the cylinder,

the thread-cutting mechanism 4 is arranged on the upper portion of the thread-cutting mechanism,

a presser foot assembly (5) is provided,

an auxiliary feeding device (6) is arranged on the feeding device,

a transmission device 6a, a transmission box body 6a-1, a rotating arm 6a-2, an eccentric bearing seat 6a-3, a crank 6a-4, a linkage arm 6a-5, a transmission sleeve 6a-6, an output shaft 6a-7, a rotating arm connecting shaft 6a-8, a crank front mounting shaft 6a-9, a crank rear mounting shaft 6a-10, a front crank connecting rod 6a-11, a front crank shaft 6a-12, a rear crank connecting rod 6a-13, a rear crank shaft 6a-14, a universal coupling 6a-15 and a driving shaft 6a-16,

the tug boat device 6b is provided with a tug boat device,

a mounting seat component 6b-1, a connecting seat 6b-1-1, a mounting seat 6b-1-2, a front cover plate 6b-1-3,

the driving wheel (6 b-2) is provided with a driving wheel,

driven wheel mounting base 6b-3, front driven wheel mounting plate 6b-31, front limit pin 6b-311, rear driven wheel mounting plate 6b-32, rear limit pin 6b-321,

a first driven wheel 6b-4, a second driven wheel 6b-5, a third driven wheel 6b-6, a feeding synchronous belt 6b-7,

a swing arm assembly 6b-8, a front connecting arm 6b-81,

front adjusting arms 6b-82, front adjusting holes 6b-821,

the rear connecting arms 6b-83,

rear adjusting arms 6b-84, rear adjusting holes 6b-841,

swing arm driving cylinders 6b-85, swing arm driving frames 6b-86,

the tension device 6c, the pressing wheel 6c-1, the pressing swing arm 6c-2, the tension spring connecting plate 6c-21, the tension spring seat 6c-3, the waist-shaped hole 6c-31, the tension spring 6c-4, the swing arm mounting plate 6c-5, the tension spring pin shaft 6c-6 and the pin shaft adjusting screw 6 c-7.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings. The description of the orientation of the utility model is performed according to the orientation shown in fig. 1, that is, the up-down left-right direction shown in fig. 1 is the up-down left-right direction of the description, the side towards which fig. 1 faces is the front side, and the side departing from fig. 1 is the rear side.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are used only for convenience in describing the present invention or simplifying the description, but do not indicate that a particular orientation must be provided.

(example 1)

Referring to fig. 1 to 19, the utility model discloses a clip burying machine with supplementary material feeding unit includes workstation 1, sewing machine head 2, slide 3, trimming mechanism 4, presser foot subassembly 5 and supplementary material feeding unit 6.

Referring to fig. 1 to 6, the table 1 includes a frame 1-1 and a mounting plate 1-2. The mounting bedplate 1-2 is horizontally and fixedly arranged on the upper end of the rear part of the frame 1-1. The sewing machine head 2 is fixedly arranged on the installation bedplate 1-2, a front cantilever 2-1 of the sewing machine head extends forwards out of the installation bedplate 1-2, and the needle plate 2-2 is fixedly arranged on the left part of the cantilever 2-1 and is positioned below a machine needle. The pull cylinder 3 is fixedly arranged on a cantilever 2-1 of the sewing machine head 2 and is positioned at the right side of the machine needle, namely the feeding side of the machine needle before sewing in the feeding direction of the cloth, and the pull cylinder 3 is used for splicing and curling two pieces of cloth. The thread cutting mechanism 4 is arranged at the left end of a cantilever 2-1 of the sewing machine head 2 and is positioned at the left side of the needle, namely the discharging side of the sewn needle in the cloth feeding direction, and is used for cutting off the thread on the sewn cloth. The presser foot component 5 is arranged on the front part of the sewing machine head 2, is positioned above the needle plate 2-2 of the cantilever 2-1 and is matched with the feed dog in the cantilever 2-1 for feeding.

Referring to fig. 1 to 19, the auxiliary feeding device 6 includes a transmission device 6a, a tug device 6b, a tension device 6c and an adjusting device 6 d.

Referring to fig. 7 to 12, the transmission device 6a comprises a transmission case 6a-1, a rotating arm 6a-2, an eccentric bearing seat 6a-3, a crank 6a-4, a linkage arm 6a-5, a transmission sleeve 6a-6, an output shaft 6a-7, a rotating arm connecting shaft 6a-8, a crank front mounting shaft 6a-9, a crank rear mounting shaft 6a-10, a front crank connecting rod 6a-11, a front crank shaft 6a-12, a rear crank connecting rod 6a-13, a rear crank shaft 6a-14, a universal coupling 6a-15 and a driving shaft 6 a-16.

The right part of the lower side of the transmission case body 6a-1 is provided with a rotary arm hole 6a-1-1 which penetrates through the inside and the outside of the case body. The sewing machine head 2 is provided with a through hole corresponding to the rotating arm hole 6 a-1-1. The transmission case 6a-1 is fixedly arranged on the rear part of the sewing machine head 2, and the interior of the transmission case 6a-1 is communicated with the interior of the sewing machine head 2 through the rotating arm hole 6a-1-1 and the through hole on the sewing machine head 2. The eccentric bearing seat 6a-3 is arranged on the upper main shaft of the sewing machine head 2 in a transmission way. The eccentric wheel portion of the eccentric bearing housing 6a-3 is rotatably provided on the lower end of the rotating arm 6a-2 through a corresponding bearing. The upper part of the rotating arm 6a-2 extends into the transmission case 6 a-1. The rotating arm connecting shaft 6a-8 is fixedly connected and arranged on the upper end of the rotating arm 6a-2 from the middle part thereof in the front-rear direction. The front end and the rear end of the right end of the linkage arm 6a-5 are rotatably connected with a rotating arm connecting shaft 6a-8, and the corresponding part of the upper part of the rotating arm 6a-2 is positioned between the two ends of the right end of the linkage arm 6 a-5. The front end and the rear end of the left end of the front crank shaft 6a-12 are hinged with the transmission sleeve 6 a-6.

The front part of the output shaft 6a-7 is rotatably arranged on the front part of the left part of the transmission case 6a-1 through a corresponding bearing and extends forwards out of the transmission case 6 a-1. The rear part of the output shaft 6a-7 is rotatably arranged on the rear part of the left part of the transmission case 6a-1 through a one-way bearing. The transmission sleeves 6a-6 are in transmission connection with the output shafts 6a-7 through one-way bearings.

The front crank mounting shaft 6a-9 and the rear crank mounting shaft 6a-10 are respectively and rotatably arranged on the front part of the right part and the rear part of the right part of the transmission case 6a-1, and the rear crank mounting shaft 6a-10 extends backwards out of the transmission case 6 a-1. The crank 6a-4 is U-shaped with its opening directed vertically to the left. The front side and the rear side of the right part of the crank 6a-4 are respectively and fixedly connected with a front crank mounting shaft 6a-9 and a rear crank mounting shaft 6a-10 in a transmission way.

The front part of the front crank shaft 6a-12 is fixedly arranged on the front end head of the left part of the crank 6a-4 and extends backwards. The rear part of the rear crank shaft 6a-14 is fixedly arranged on the rear end head of the left part of the crank 6a-4 and extends forwards.

The right end of the front crank connecting rod 6a-11 is rotatably connected to the front end of the rotating arm connecting shaft 6 a-8. The left ends of the front crank links 6a-11 are pivotally connected to the rear ends of the front crank shafts 6 a-12.

The right ends of the rear crank connecting rods 6a-13 are rotatably connected to the rear ends of the rotating arm connecting shafts 6 a-8. The right ends of the rear crank links 6a-13 are rotatably connected to the front ends of the rear crankshafts 6 a-14.

The output shafts 6a-7 are in transmission connection with the driving shafts 6a-16 through universal couplings 6 a-15.

Referring to fig. 14 to 19, the tug unit 6b comprises a mounting seat assembly 6b-1, a driving wheel 6b-2, a driven wheel mounting seat 6b-3, a first driven wheel 6b-4, a second driven wheel 6b-5, a third driven wheel 6b-6, a feeding synchronous belt 6b-7 and a swing arm assembly 6 b-8.

The mounting seat assembly 6b-1 comprises a connecting seat 6b-1-1, a mounting seat 6b-1-2 and a front cover plate 6 b-1-3. The connecting base 6b-1-1 is fixedly connected to the left side of the front part of the upper part of the sewing machine head 2 from the right part thereof and extends leftwards. The upper part of the mounting seat 6b-1-2 is hinged on the left part of the connecting seat 6 b-1-1. The front cover plate 6b-1-3 is fixedly arranged on the front side of the mounting seat 6 b-1-2. The driving shaft 6a-16 of the transmission device 6a is rotatably arranged on the upper part of the front cover plate 6b-1-3 and the upper part of the mounting seat 6b-1-2 through corresponding bearings, and the rotating axis thereof is horizontally arranged along the front-back direction. The driving wheel 6b-2 is coaxially arranged on the driving shaft 6a-16 in a transmission way and is positioned between the front cover plate 6b-1-3 and the mounting seat 6 b-1-2. The first driven wheel 6b-4 is rotatably provided between the lower rear side of the front cover 6b-1-3 and the lower front side of the mounting seat 6 b-1-2.

The driven wheel mounting base 6b-3 includes a front driven wheel mounting plate 6b-31 and a rear driven wheel mounting plate 6 b-32. The front driven wheel mounting plate 6b-31 is provided with a front stopper pin 6b-311 at the front left portion. The rear driven wheel mounting plate 6b-32 is provided with a rear limit pin 6b-321 at the rear left part. The front driven wheel mounting plates 6b-31 and the rear driven wheel mounting plates 6b-32 are fixedly connected.

The second driven wheel 6b-5 is rotatably disposed between the rear right portion of the front driven wheel mounting plate 6b-31 and the front right portion of the rear driven wheel mounting plate 6 b-32.

The third driven wheel 6b-6 is rotatably disposed between the rear left portion of the front driven wheel mounting plate 6b-31 and the front left portion of the rear driven wheel mounting plate 6 b-32.

The swing arm assembly 6b-8 comprises a front connecting arm 6b-81, a front adjusting arm 6b-82, a rear connecting arm 6b-83 and a rear adjusting arm 6b-84, a swing arm driving cylinder 6b-85 and a swing arm driving frame 6 b-86. The front link arm 6b-81 is rotatably provided on the lower portion of the front cover 6b-1-3 from the left portion thereof, coaxially with the first driven pulley 6 b-4. The rear connecting arm 6b-83 is rotatably provided on the lower portion of the mounting seat 6b-1-2 from the left portion thereof, and is coaxially provided with the first driven pulley 6 b-4. The front adjusting arms 6b-82 are fixedly arranged on the right portions of the front connecting arms 6 b-81. The rear adjusting arms 6b-84 are fixedly arranged on the right portions of the rear connecting arms 6 b-83.

The driven wheel mounting seat 6b-3 is rotatably arranged between the rear side of the right end of the front adjusting arm 6b-82 and the front side of the right end of the rear adjusting arm 6 b-84; the front driven wheel mounting plate 6b-31 is rotatably arranged on the rear side of the right end of the front adjusting arm 6b-82 from the middle part of the front side thereof, the rear driven wheel mounting plate 6b-32 is rotatably arranged on the front side of the right end of the front adjusting arm 6b-82 from the middle part of the rear side thereof, and the rotation axis of the second driven wheel 6b-5 and the rotation axis of the third driven wheel 6b-6 are respectively positioned on the right side and the left side of the driven wheel mounting seat 6 b-3.

The right end of the front adjusting arm 6b-82 is provided with a front adjusting hole 6b-821 which penetrates through the front and the back of the front adjusting arm, the front adjusting hole 6b-821 is an arc waist-shaped hole, and the circle center of the front adjusting hole is positioned on the rotating axis of the driven wheel mounting seat 6 b-3. The front stopper pins 6b-311 of the front driven wheel mounting plates 6b-31 are slidably disposed in the front adjustment holes 6 b-821.

The right ends of the rear adjusting arms 6b-84 are provided with rear adjusting holes 6b-841 which penetrate through the front and the rear of the rear adjusting arms, the rear adjusting holes 6b-841 are arc waist-shaped holes, and the circle centers of the rear adjusting holes are positioned on the rotating axis of the driven wheel mounting seat 6 b-3. The rear stopper pins 6b-321 on the rear driven wheel mounting plates 6b-32 are slidably disposed in the rear regulation holes 6 b-841.

The feeding synchronous belt 6b-7 is arranged around the driving wheel 6b-2, the first driven wheel 6b-4, the second driven wheel 6b-5 and the third driven wheel 6 b-6.

The swing arm driving cylinder 6b-85 is hinged on the right side of the upper part of the mounting seat 6b-1-2 from the upper end of the cylinder body, and the piston rod of the swing arm driving cylinder extends downwards. The swing arm driving frames 6b-86 are fixedly arranged at the lower ends of piston rods of the swing arm driving cylinders 6b-85, and the lower parts of the swing arm driving frames 6b-86 are hinged to the front adjusting arms 6b-82 and the rear adjusting arms 6b-84, so that the swing arm driving cylinders 6b-85 drive the front adjusting arms 6b-82 and the rear adjusting arms 6b-84 to synchronously lift or synchronously press through the swing arm driving frames 6 b-86.

Referring to fig. 18, the tensioning device 6c comprises a pressing wheel 6c-1, a pressing swing arm 6c-2, a tension spring seat 6c-3, a tension spring 6c-4 and a swing arm mounting plate 6 c-5.

The swing arm mounting plate 6c-5 is fixedly arranged on the rear part of the mounting seat 6b-1-2 and is positioned between the driving wheel 6b-2 and the first driven wheel 6b-4 in the vertical direction. The pressing swing arm 6c-2 is rotatably arranged between the swing arm mounting plate 6c-5 and the mounting seat 6b-1-2 from the middle part of the pressing swing arm 6c-2, the pressing swing arm 6c-2 is provided with a tension spring connecting plate 6c-21, and the tension spring connecting plate 6c-21 extends backwards out of the swing arm mounting plate 6 c-5. The tension spring seat 6c-3 is fixedly arranged on the rear side of the mounting seat 6b-1-2 and is positioned above the swing arm mounting plate 6 c-5. The tension spring seat 6c-3 is provided with a waist-shaped hole 6c-31 which penetrates through the front and the back of the tension spring seat along the left and right directions, and a tension spring pin 6c-6 is arranged in the waist-shaped hole 6c-31 of the tension spring seat 6 c-3. And a pin shaft adjusting screw 6c-7 is arranged on the tension spring seat 6 c-3. The tension spring pin 6c-6 is provided with a screw hole which is matched with the pin shaft adjusting screw 6c-7 and penetrates through the left and the right of the tension spring pin, and the screw rod of the pin shaft adjusting screw 6c-7 penetrates through the corresponding part of the tension spring seat 6c-3 backwards and extends into the kidney-shaped hole 6c-31 to be screwed in the screw hole on the tension spring pin 6c-6, so that the position of the tension spring pin 6c-6 in the left and right directions is adjusted. The tension spring 6c-4 is arranged between the tension spring connecting plate 6c-21 of the pressing swing arm 6c-2 and the tension spring pin shaft 6c-6 and is in a stretching state. The pressing wheel 6c-1 is rotatably arranged on the front side of the lower end of the pressing swing arm 6c-2, and presses the feeding synchronous belt 6b-7 from the upper part to the lower part, so that the feeding synchronous belt 6b-7 is always kept in a tension state.

Referring to fig. 7 to 13, the adjusting device 6d comprises an adjusting arm mounting seat 6d-1, an adjusting arm 6d-2, a locking bolt 6d-3 and a locking hand wheel 6 d-4.

The adjusting arm mounting seat 6d-1 is fixedly arranged on the right side of the transmission case 6 a-1. The right part of the adjusting arm mounting seat 6d-1 is provided with a first adjusting groove 6d-1-1 which penetrates through the front part and the back part of the adjusting arm mounting seat in the vertical direction.

The right part of the adjusting arm 6d-2 is provided with a second adjusting groove 6d-2-1 which penetrates through the front part and the rear part of the adjusting arm along the length direction. The second adjusting groove 6d-2-1 is intersected with the first adjusting groove 6d-1-1 of the adjusting arm mounting seat 6 d-1. The left end of the adjusting arm 6d-2 is fixedly connected with the rear end of the crank rear mounting shaft 6 a-10.

The screw of the locking bolt 6d-3 sequentially penetrates through the second adjusting groove 6d-2-1 of the adjusting arm 6d-2 and the first adjusting groove 6d-1-1 of the adjusting arm mounting seat 6d-1 from back to front and then is screwed on the locking hand wheel 6d-4, so that the adjusting arm 6d-2 is fixedly connected with the adjusting arm mounting seat 6d-1, the up-and-down positions of the locking bolt 6d-3 in the first adjusting groove 6d-1-1 of the adjusting arm mounting seat 6d-1 are changed, the height adjustment of the two ends of the left part of the crank 6a-4 is realized, and the height positions of the front crank shaft 6a-12 and the rear crank shaft 6a-14 are changed.

Corresponding gaskets are arranged on the locking bolts 6d-3 between the rear end of the locking bolt 6d-3 and the adjusting arm 6d-2, between the adjusting arm 6d-2 and the adjusting arm mounting seat 6d-1 and between the adjusting arm mounting seat 6d-1 and the locking hand wheel 6 d-4.

The utility model discloses an auxiliary feeding device during operation of machine is pressed from both sides to bury with auxiliary feeding device: the main shaft on the head of the sewing machine head 2 drives the eccentric bearing seat 6a-3 to rotate, the eccentric wheel part of the eccentric bearing seat 6a-3 drives the rotating arm 6a-2 to move, so that the linkage arm 6a-5 drives the transmission sleeve 6a-6 to reciprocate, and the rear part of the output shaft 6a-7 is rotationally arranged on the rear part of the left part of the transmission box body 6a-1 through a one-way bearing; the transmission sleeves 6a-6 are in transmission connection with the output shafts 6a-7 through one-way bearings, so that the transmission sleeves 6a-6 drive the output shafts 6a-7 to rotate towards one direction, and further drive the driving wheels 6b-2 to rotate through the universal couplings 6a-15 and the driving shafts 6a-16, and rotary feeding of the feeding synchronous belts 6b-7 is achieved. The piston rods of the swing arm driving cylinders 6b-85 extend downwards, and the front adjusting arms 6b-82 and the right ends of the rear adjusting arms 6b-84 are driven to synchronously press downwards through the swing arm driving frames 6b-86, so that the driven wheel mounting seats 6b-3 descend. When the second driven wheel 6b-5 presses the corresponding part of the feeding synchronous belt 6b-7 on the sewn cloth from the top downwards, the cloth is pressed on the needle plate 2-2, the front adjusting arm 6b-82 and the rear adjusting arm 6b-84 continue downwards, the front limit pin 6b-311 and the rear limit pin 6b-321 are pressed downwards through the front adjusting hole 6b-821 and the rear adjusting hole 6b-841, so that the third driven wheel 6b-6 continues downwards to press the corresponding part of the feeding synchronous belt 6b-7 on the sewn cloth from the top downwards, the pressing contact area of the feeding synchronous belt 6b-7 and the cloth is greatly increased, the stable feeding is ensured, and the sewing quality is improved.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. A buried clamp machine with an auxiliary feeding device comprises a workbench, a sewing machine head, a pull cylinder, a thread trimming mechanism and a presser foot component; the workbench comprises a rack and a mounting bedplate; the mounting bedplate is horizontally and fixedly arranged on the upper end of the rear part of the frame; the sewing machine head is fixedly arranged on the mounting table plate, a front cantilever of the sewing machine head extends forwards out of the mounting table plate, and the needle plate is fixedly arranged on the left part of the cantilever and is positioned below the needle; the pull cylinder is fixedly arranged on a cantilever of the sewing machine head and positioned on the right side of the needle, and is used for splicing and curling two pieces of cloth; the thread cutting mechanism is arranged on the left end of a cantilever of the sewing machine head and positioned on the left side of the needle and is used for cutting off threads on the sewn cloth; the presser foot component is arranged on the front part of the sewing machine head, is positioned above the needle plate of the cantilever and is matched with the feed dog in the cantilever for feeding; the method is characterized in that: the device also comprises an auxiliary feeding device; the auxiliary feeding device comprises a transmission device and a tug device; the tug device comprises a feeding synchronous belt, and the feeding synchronous belt of the tug device is driven by a main shaft on the head of the sewing machine head through a transmission device to feed.

2. The felling jig with the auxiliary feeding device according to claim 1, characterized in that: the tug device also comprises a driving wheel, a second driven wheel and a third driven wheel; the feeding synchronous belt is arranged around the driving wheel, the second driven wheel and the third driven wheel, the driving wheel is driven by the driving device to rotate, the second driven wheel and the third driven wheel press the feeding synchronous belt on the cloth together, and the feeding synchronous belt and the cloth are subjected to surface contact feeding.

3. The felling jig with the auxiliary feeding device according to claim 1 or 2, characterized in that: the transmission device comprises a transmission box body, a rotating arm, an eccentric bearing seat, a crank, a linkage arm, a transmission sleeve, an output shaft, a rotating arm connecting shaft, a crank front mounting shaft, a crank rear mounting shaft, a front crank connecting rod, a front crank shaft, a rear crank connecting rod, a rear crank shaft, a universal coupling and a driving shaft;

the right part of the lower side of the transmission box body is provided with a rotating arm hole which penetrates through the inside and the outside of the box body; a through hole corresponding to the rotary arm hole is formed in the sewing machine head; the transmission box body is fixedly arranged on the rear part of the sewing machine head, and the interior of the transmission box body is communicated with the interior of the sewing machine head through the rotating arm hole and the through hole on the sewing machine head; the eccentric bearing block is arranged on a main shaft on a machine head of the sewing machine head in a transmission way; the eccentric wheel part of the eccentric bearing seat is rotatably arranged on the lower end of the rotating arm through a corresponding bearing; the upper part of the rotating arm extends into the transmission box body; the rotating arm connecting shaft is fixedly connected with the upper end of the rotating arm from the middle part of the rotating arm along the front-back direction; the front end and the rear end of the right end of the linkage arm are rotationally connected with a rotating arm connecting shaft, and the corresponding part of the upper part of the rotating arm is positioned between the two ends of the right end of the linkage arm; the front end and the rear end of the left end of the front crank shaft are hinged with the transmission sleeve;

the front part of the output shaft is rotatably arranged on the front part of the left part of the transmission box body through a corresponding bearing and extends forwards out of the transmission box body; the rear part of the output shaft is rotatably arranged on the rear part of the left part of the transmission box body through a one-way bearing; the transmission sleeve is in transmission connection with the output shaft through a one-way bearing;

the crank front mounting shaft and the crank rear mounting shaft are respectively and rotatably arranged on the front part of the right part and the rear part of the right part of the transmission box body, and the crank rear mounting shaft extends out of the transmission box body backwards; the crank is in a U shape with an opening vertically towards the left; the front side and the rear side of the right part of the crank are respectively in transmission fixed connection with a crank front mounting shaft and a crank rear mounting shaft;

the front part of the front crank shaft is fixedly arranged on the front end head of the left part of the crank and extends backwards; the rear part of the rear crank shaft is fixedly arranged on the rear end head of the left part of the crank and extends forwards; the right end of the front crank connecting rod is rotatably connected to the front end of the rotating arm connecting shaft; the left end of the front crank connecting rod is rotationally connected with the rear end of the front crank shaft; the right end of the rear crank connecting rod is rotatably connected to the rear end of the rotating arm connecting shaft; the right end of the rear crank connecting rod is rotatably connected to the front end of the rear crank shaft; the output shaft is connected with the driving shaft in a transmission way through a universal coupling.

4. The felling jig with the auxiliary feeding device according to claim 3, characterized in that: the tug boat device also comprises a swing arm component; the second driven wheel and the third driven wheel are lifted or pressed down by the swing arm assembly.

5. The felling jig with the auxiliary feeding device according to claim 4, characterized in that: the tug device also comprises a mounting seat assembly, a driven wheel mounting seat and a first driven wheel; the driving device comprises a driving shaft; the mounting seat assembly comprises a connecting seat, a mounting seat and a front cover plate; the connecting seat is fixedly connected to the left side of the front part of the upper part of the sewing machine head from the right part of the connecting seat and extends out leftwards; the upper part of the mounting seat is hinged and connected to the left part of the connecting seat; the front cover plate is fixedly arranged on the front side of the mounting seat; a driving shaft of the driving device is rotatably arranged on the upper part of the front cover plate and the upper part of the mounting seat through corresponding bearings, and a rotating axis of the driving device is horizontally arranged along the front-back direction; the driving wheel is coaxially arranged on the driving shaft in a transmission way and is positioned between the front cover plate and the mounting seat; the first driven wheel is rotatably arranged between the rear side of the lower part of the front cover plate and the front side of the lower part of the mounting seat;

the driven wheel mounting seat comprises a front driven wheel mounting plate and a rear driven wheel mounting plate; a front limit pin is arranged at the left part of the front side of the front driven wheel mounting plate; a rear limit pin is arranged at the left part of the rear side of the rear driven wheel mounting plate; the front driven wheel mounting plate is fixedly connected with the rear driven wheel mounting plate;

the second driven wheel is rotatably arranged between the right rear part of the front driven wheel mounting plate and the right front part of the rear driven wheel mounting plate;

the third driven wheel is rotatably arranged between the rear left part of the front driven wheel mounting plate and the front left part of the rear driven wheel mounting plate;

the swing arm assembly comprises a front connecting arm, a front adjusting arm, a rear connecting arm, a rear adjusting arm, a swing arm driving cylinder and a swing arm driving frame; the front connecting arm is rotatably arranged on the lower part of the front cover plate from the left part and is coaxially arranged with the first driven wheel; the rear connecting arm is rotatably arranged on the lower part of the mounting seat from the left part and is coaxially arranged with the first driven wheel; the front adjusting arm is fixedly arranged on the right part of the front connecting arm; the rear adjusting arm is fixedly arranged on the right part of the rear connecting arm;

the driven wheel mounting seat is rotatably arranged between the rear side of the right end of the front adjusting arm and the front side of the right end of the rear adjusting arm; the front driven wheel mounting plate is rotatably arranged on the rear side of the right end of the front adjusting arm from the middle part of the front side of the front driven wheel mounting plate, the rear driven wheel mounting plate is rotatably arranged on the front side of the right end of the front adjusting arm from the middle part of the rear side of the rear driven wheel mounting plate, and the rotating axis of the second driven wheel and the rotating axis of the third driven wheel are respectively positioned on the right side and the left side of the driven wheel mounting seat;

the right end of the front adjusting arm is provided with a front adjusting hole penetrating through the front and the back of the front adjusting arm, the front adjusting hole is an arc-shaped waist-shaped hole, and the circle center of the front adjusting hole is positioned on the rotating axis of the driven wheel mounting seat; a front limit pin on the front driven wheel mounting plate is arranged in the front adjusting hole in a sliding manner;

the right end of the rear adjusting arm is provided with a rear adjusting hole which penetrates through the front and the rear of the rear adjusting arm, the rear adjusting hole is an arc-shaped waist-shaped hole, and the circle center of the rear adjusting hole is positioned on the rotating axis of the driven wheel mounting seat; a rear limiting pin on the rear driven wheel mounting plate is arranged in the rear adjusting hole in a sliding manner;

the feeding synchronous belt is arranged around the driving wheel, the first driven wheel, the second driven wheel and the third driven wheel;

the swing arm driving cylinder is hinged to the right side of the upper part of the mounting seat from the upper end of the cylinder body, and a piston rod of the swing arm driving cylinder extends downwards; the swing arm driving frame is fixedly arranged at the lower end of a piston rod of the swing arm driving cylinder, and the lower part of the swing arm driving frame is hinged to the front mediating arm and the rear mediating arm, so that the swing arm driving cylinder drives the front mediating arm and the rear mediating arm to synchronously lift or synchronously press through the swing arm driving frame.

6. The felling and clamping machine of claim 3, characterized in that: the auxiliary feeding device further comprises a tensioning device, and the tensioning device is used for keeping the feeding synchronous belt in a tensioning state.

7. The felling and clamping machine of claim 6, characterized in that: the tensioning device of the auxiliary feeding device comprises a pressing wheel, a pressing swing arm, a tension spring seat, a tension spring and a swing arm mounting plate; the swing arm mounting plate is fixedly arranged on the mounting base component of the tug device; the pressing swing arm is rotatably arranged between the swing arm mounting plate and the mounting seat component from the middle part of the pressing swing arm, and is provided with a tension spring connecting plate which extends backwards out of the swing arm mounting plate; the tension spring seat is fixedly arranged on the rear side of the mounting seat and is positioned above the swing arm mounting plate; the tension spring seat is provided with waist-shaped holes penetrating through the tension spring seat in the left-right direction, and a tension spring pin shaft is arranged in the waist-shaped hole of the tension spring seat; a pin shaft adjusting screw is arranged on the tension spring seat; the tension spring pin shaft penetrates through the corresponding part of the tension spring seat and then extends into the kidney-shaped hole to be screwed in the screw hole on the tension spring pin shaft, so that the position of the tension spring pin shaft in the left-right direction is adjusted; the tension spring is arranged between a tension spring connecting plate of the pressing swing arm and the tension spring pin shaft and is in a stretching state; the pressing wheel is rotatably arranged on the front side of the lower end of the pressing swing arm, and presses the outer side of the feeding synchronous belt downwards from the upper part, so that the feeding synchronous belt is always kept in a tensioning state.

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