CN111826815A

CN111826815A - Sewing machine integrating automatic hemming, sewing and chopping of woven belt

Info

Publication number: CN111826815A
Application number: CN202010733664.4A
Authority: CN
Inventors: 成卫平; 晁文栋
Original assignee: Typical Sewing Machine Wanping Machinery Co ltd
Current assignee: Typical Sewing Machine Wanping Machinery Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2020-10-27

Abstract

The invention relates to a sewing machine integrating automatic hemming, sewing and cutting of a woven tape. On one hand, the belt feeding device carries out relatively flat and linear belt feeding automatically, so that the effect of ribbon curling and sewing is improved, and the poor probability of products after sewing due to the belt feeding is reduced; on the other hand, through the calibration and the connection of the calibration plug, the hemming folding part pressed by the presser foot is orderly stacked on two sides of the width direction of the woven belt, so that the hemming quality of the woven belt after sewing is ensured, the structure is simple, the implementation is convenient, and the cost is low.

Description

Sewing machine integrating automatic hemming, sewing and chopping of woven belt

Technical Field

The invention belongs to the field of sewing equipment, and particularly relates to a sewing machine integrating automatic hemming, sewing and chopping of a woven tape.

Background

At present, in the fields of bags, automotive interiors, medical supplies, outdoor supplies and the like, some woven belts or ribbons are usually sewn on products and have curling requirements. For example, the braid is curled on the shoulder strap of the backpack, so as to prevent the backpack from falling off from the buckle; some woven belt-shaped fabrics on the automotive interior need to be curled and sewn for use; the end part of the tightening belt on the rescue stretcher needs to be sewn and curled, so that the firmness of the fastening is ensured; some clothes and tools of outdoor products also have related applications and the like.

Meanwhile, there are two types of common ribbon curling: firstly, single folding; two, double (which includes double full rolls and double empty rolls). The existing forming process is usually manual hemming, that is, the braid is cut into a proper length, the braid end is manually hemmed, then the braid end is manually placed under a pressing plate of a knotting machine for sewing, a single piece is finished, and a finished product is placed.

Obviously, the above-mentioned processing of the ribbon hemming has the following defects:

1. the full-automatic or semi-automatic production cannot be carried out, so the production efficiency is low;

2. the amount of the curled edge is estimated by the experience of operators, so that the sizes of the belt rings formed by the obtained product are completely different, especially for double-folded empty rolls, because double folding is needed, the uniformity of the curled edge of the woven belt cannot be ensured even by manual curling operation.

In view of the above problems, some automated or semi-automated researches have been conducted on the market, and therefore, the webbing hemming and sewing apparatus includes an automatic tape feeding mechanism, an automatic hemming mechanism, an automatic sewing mechanism, and an automatic cutting mechanism.

Specifically, the automatic tape feeding mechanism basically includes a webbing unwinding unit, a feed nip movable in the length or width direction of the unwound webbing, and a drive unit that drives the feed nip to move.

However, during unwinding, the webbing is inevitably shaken, and thus, there is a great disadvantage: the straight line output can't be guaranteed to the meshbelt to when influencing follow-up turn-up fifty percent discount, the meshbelt can distort or can't align from the side and sew up, cause the product defective rate after the production higher.

Meanwhile, for the automatic hemming mechanism, the automatic hemming mechanism basically comprises a hemming chuck connected with the belt outlet end of the automatic belt feeding mechanism, a driving unit for driving the hemming chuck to curl and feed the woven belt, and a connecting unit for connecting the hemmed woven belt to the position below a presser foot of the automatic sewing mechanism from the hemming chuck.

However, when the connecting unit unloads the folded webbing from the hemming jaw, the folded portion is inevitably displaced, and thus, the neatness of the hemmed portion after the hemming is difficult to be ensured, thereby affecting the hemming quality of the sewn webbing.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides an improved sewing machine integrating automatic hemming, sewing and chopping of a woven belt.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides an automatic sewing machine of turn-up, sewing up, cutting an organic whole of meshbelt, it includes:

a frame;

the automatic sewing mechanism comprises a machine head, a presser foot and a needle shuttle unit;

the automatic tape-feeding mechanism comprises an unwinding unit for unwinding the coiled braid;

the automatic hemming mechanism comprises a hemming chuck connected with the belt outlet end part of the unwinding unit, a driving unit used for driving the hemming chuck to move so as to drive the braid belt conveying belt, and a connecting unit used for connecting the hemmed braid to the position below the presser foot from the hemming chuck;

an automatic cutting mechanism arranged between the automatic sewing mechanism and the unwinding unit,

particularly, the unwinding unit comprises an unwinding frame arranged on a frame of the woven tape hemming stitching device, a tape feeding frame positioned between the unwinding frame and the hemming chuck, a deviation correcting assembly and a transmission power assembly, wherein the deviation correcting assembly and the transmission power assembly are arranged on the tape feeding frame, the woven tape is detachably arranged on the unwinding frame, the center line of a tape feeding channel formed by the deviation correcting assembly is superposed with the center line of the tape feeding frame, and the width of the tape feeding channel is matched with the width of the woven tape;

the unit of plugging into includes the picture peg subassembly, the subassembly of plugging into of drive picture peg subassembly motion, wherein the picture peg subassembly is including setting up the picture peg seat at the presser foot left, be located the rear side of presser foot and with the perpendicular calibration plug that sets up of turn-up chuck, the subassembly of plugging into includes that the drive calibrates the plug and pegs graft or the first driver of the motion that resets along self length direction horizontal sideslip, form on the calibration plug with punch holder and lower plate assorted picture peg groove, peg graft each other when calibration plug and turn-up chuck, the meshbelt after the turn-up uses the medial surface that the calibration plug is close to the presser foot as the benchmark and the self of just aligning unload under the presser foot on the turn-up.

Preferably, the transmission power assembly includes an upper transmission roller and a lower transmission roller which are disposed at the belt discharging end of the belt feeding channel and extend along the width direction of the belt feeding channel, and a driver which drives the upper transmission roller and the lower transmission roller to rotate oppositely.

According to a specific implementation and preferable aspect of the invention, the upper conveying roller can be rotatably arranged on the belt conveying frame around the axis of the upper conveying roller, and the upper conveying roller can be vertically adjusted along the height of the belt conveying frame; the lower conveying roller is a driving roller, and the driver is used for driving the lower conveying roller to rotate. One driving roller and the other extrusion driven roller are arranged, so that the woven belt can move towards the curling chuck under the condition that the driving roller and the driven roller rotate oppositely.

According to another embodiment and preferred aspect of the present invention, the deviation rectifying assembly includes a left stopper and a right stopper extending along the length direction of the webbing and capable of being adjusted toward each other, and an adjusting member for driving the left stopper and the right stopper to move closer together or apart synchronously. Therefore, whether the width of the mesh belt is changed or not, the center line of the mesh belt is overlapped with the center line of the belt feeding channel, and the mesh belt is prevented from being twisted and sent to the hemming chuck.

Preferably, the adjusting part comprises fixing seats respectively fixed on two opposite sides of the belt conveying frame, and bolts which are in running fit with the fixing seats and in threaded fit with the left stop block and the right stop block respectively, wherein the bolts are provided with forward and reverse threads respectively, the left stop block and the right stop block are matched with the forward and reverse threads of the bolts respectively, and the left stop block and the right stop block are arranged relatively close to and relatively far away from each other under the rotation of the bolts. The synchronous opposite movement is implemented by adopting a matching mode of forward and reverse threads, and the operation is simple and convenient.

Furthermore, a guide rod which penetrates through the left stop block and the right stop block is further arranged between the two fixed seats, and the left stop block and the right stop block move transversely relative to the guide rod. Therefore, the stability of the translation of the left stop block and the right stop block is ensured, and the left stop block and the right stop block are always kept in a parallel state.

According to another specific implementation and preferable aspect of the invention, the deviation rectifying assembly further comprises a guiding module which is arranged at the belt outlet end part of the belt feeding channel and forms the braid guiding channel, and a left arched module and a right arched module which are arranged between the braid guiding channel and the belt feeding channel and can avoid the movement of the upper conveying roller, wherein the rear end part of the left arched module is connected with the front end part of the left stopper, and the front end part of the left arched module is abutted against or close to the left side of the guiding module; the rear end part of the right arched module is connected with the front end part of the right block, and the front end part of the right arched module is butted with or pressed close to the right side of the guide module, and a conduction band inlet of a braid guide channel matched with the width of the braid is formed between the front end parts of the left arched module and the right arched module. Herein, through the setting of meshbelt guiding channel and conduction band entry, make things convenient for the entering of meshbelt, simultaneously, at the position of upper and lower direction when having restricted the meshbelt transmission, reduced the perk phenomenon of meshbelt head and taken place, guarantee that the meshbelt head is smooth to get into in the turn-up chuck

Preferably, a guide tongue extending between the front ends of the left arched module and the right arched module is further arranged at the entrance of the guide module corresponding to the guide belt, wherein the bottom surface of the guide tongue is gradually inclined downwards from back to front. The benefits of this arrangement are: the woven belt can conveniently enter the woven belt guide channel from the transmission roller.

Furthermore, the deviation correcting assembly further comprises a left limiting strip and a right limiting strip which are arranged inside the braid guide channel and are respectively connected with the front end parts of the left arch module and the right arch module, wherein a belt conveying limiting channel extending along the length direction of the braid is formed between the left limiting strip and the right limiting strip.

According to still another embodiment and preferred aspect of the present invention, the automatic tape feeding mechanism further comprises a tape feeding auxiliary unit disposed at a tape feeding end portion of the tape feeding passage and forming a tape feeding port matching a thickness of the webbing, wherein the auxiliary unit comprises a tape feeding lever at a front end for supporting the webbing, and a pressing plate pressed on a shelf plate of the tape feeding shelf with a downward pressing movement tendency maintained, and the tape feeding port is formed between the pressing plate and the shelf plate, and the webbing moves from the tape feeding port to the tape feeding passage. Herein, through the setting of adjustable clamp plate, satisfy the flattening of different thickness meshbelts, and then ensure to get into to send the meshbelt in the passageway and be in the straight state.

Preferably, the tape feeding rod is a fixed rod or a rolling shaft which freely rotates around the axis of the tape feeding rod, and the automatic tape feeding mechanism further comprises a braid buffering unit arranged between the tape feeding rod and the tape inlet.

Specifically, the braid caching unit comprises a caching seat and a power device, wherein the caching seat is used for enabling the braid to horizontally pass through a hole, the power device drives the caching seat to move up and down, and when the passing hole, the braid inlet and the braid feeding rod of the caching seat are arranged in a flush mode, the braid is conveyed to the braid feeding channel in a flat mode; when the through hole of the buffer memory seat, the belt inlet and the belt conveying rod are staggered up and down, the braid buffers, and the buffer memory aims are as follows: can realize the quick connection of two webbing rolls.

Preferably, the upper clamping plate and the lower clamping plate are arranged in parallel, the calibration plug is provided with two insertion plate grooves, one of the two insertion plate grooves is an upper insertion plate groove, the other one of the two insertion plate grooves is a lower insertion plate groove, when the calibration plug is vertically inserted into the crimping chuck, the upper clamping plate is positioned in the upper insertion plate groove, and the lower clamping plate is positioned in the lower insertion plate groove. Through the accuracy of the inserting and matching, the braid is relatively stable in the unloading process after the curling, the braid is relatively neatly pressed under the presser foot, and the quality of the sewn product can meet the requirement.

Furthermore, when the calibration plug is vertically inserted into the crimping chuck, the insertion end part of the calibration plug penetrates out of the corresponding side edge of the crimping chuck. Therefore, the curled braid is ensured to be completely abutted against the inner side of the calibration plug from the side edge, and the trim of the curled edge part during the curled edge sewing of the braid is further improved.

According to a specific implementation and a preferable aspect of the invention, the automatic hemming mechanism further comprises a belt pressing plate which is arranged at the right side of the presser foot and can press the webbing, and a telescopic rod which drives the belt pressing plate to move up and down. The ribbon is pressed by the ribbon pressing plate, so that the curling of the ribbon is facilitated, particularly for double-folded hollow rolling, the curling chuck firstly clamps the curling part to penetrate through the bottom of the presser foot, the curling chuck returns to the bottom of the presser foot in the state that the ribbon is pressed by the ribbon pressing plate, then the curling part is unloaded from the curling chuck by the calibration plug and is sewn under the pressing of the presser foot, and then the double-folded hollow rolling of the ribbon is finished.

Preferably, the docking assembly further comprises a second driver for driving the board inserting seat to move up and down, wherein the board inserting seat has a first working state and a second working state, and when the board inserting seat is in the first working state, the board inserting seat is aligned with the hemming chuck and can be mutually docked; when the plug board seat is in the second working state, the plug board seat and the hemming chuck are staggered up and down, and the plug board seat can avoid the transverse movement of the hemming chuck. The benefits of this arrangement are: the structure can be more compact, and particularly, the double-folded hollow coil type woven belt is more convenient to implement.

According to still another embodiment and preferred aspect of the present invention, the driving unit includes a winding part driving the hemming jaws to rotate on a center in a length direction of the upper plate or the lower plate, a first traverse part driving the hemming jaws to traverse in a length direction of the chute, and a second traverse part driving the hemming jaws to traverse in a length direction of the upper plate or the lower plate. The webbing is hemmed under the winding member, and the hemming portion is laterally moved under the first and second lateral moving members.

Preferably, the winding component comprises a winding seat and a winding motor, wherein the curling chuck is rotationally connected with the winding seat through a pivot shaft, and an output shaft of the winding motor is in transmission connection with the pivot shaft.

Preferably, the first traverse member includes a base, a slide provided on the base so as to be laterally moved in a longitudinal direction of the board slot, and a first driving member for driving the slide to be linearly moved, and the second traverse member and the winding member are provided on the slide.

Further, still be equipped with the slide rail on the base, the slide is through the sliding block sliding connection who matches with the slide rail on the base, and first driving piece is including setting up driving motor on the base, being located on the base and be in the drive gear between base and the slide and with drive gear cooperation and fix the rack in the slide bottom.

Specifically, the second traverse component comprises a fixed seat fixed on the sliding seat, a guide rail arranged on the fixed seat and extending along the length direction of the hemming chuck, a guide shoe arranged on the guide rail in a sliding mode, and a second driving piece driving the guide shoe to traverse on the guide rail, wherein the winding seat is fixedly connected to the guide shoe, and the second driving piece is a telescopic rod piece.

In addition, a discharge opening is formed in the frame between the presser foot and the unwinding unit, and the automatic cutting mechanism includes a cutter disposed above the end of the unwinding unit and extending in the width direction of the webbing, a telescopic rod for driving the cutter to move up and down to cut the webbing, a storage box located inside the frame and communicating with the discharge opening, an air blowing pipeline located above the storage box and capable of blowing the webbing to the storage box, and an air supply member. Here, after the presser foot is pressed down, the needle shuttle unit performs automatic sewing, after the sewing is completed, the presser foot is lifted, and under the reverse conveying of the upper and lower transmission rollers, the woven belt is driven to return, the hemming head is separated from the presser foot, the air blowing pipeline starts to blow air, the hemming head of the woven belt moves towards the discharge opening and drops to the containing box, at the moment, the upper and lower transmission rollers convey the woven belt outwards in the forward direction again, after the length of the woven belt reaches the required length (the length can be counted by the code rolling device, after the required size is reached, an instruction is given to the telescopic rod to realize the cutting of the woven belt), the woven belt is cut by the action of the chopping knife, after the cutting is completed, the air blowing pipeline stops blowing, the woven belt finished product falls into the containing box, a complete process is finished, and then a new process is repeated, so that.

Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:

on one hand, the belt feeding device carries out relatively flat and linear belt feeding automatically, so that the effect of ribbon curling and sewing is improved, and the poor probability of products after sewing due to the belt feeding is reduced; on the other hand, through the calibration and the connection of the calibration plug, the hemming folding part pressed by the presser foot is orderly stacked on two sides of the width direction of the woven belt, so that the hemming quality of the woven belt after sewing is ensured, the structure is simple, the implementation is convenient, and the cost is low.

Drawings

The invention is described in further detail below with reference to the figures and specific examples.

FIG. 1 is a schematic view showing a structure of a sewing machine according to the present embodiment;

FIG. 2 is a rear view of FIG. 1;

FIG. 3 is a schematic structural view of the automatic tape feeding mechanism of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is an enlarged view of another perspective of the partial structure of FIG. 4;

FIG. 6 is a schematic view of a portion of the structure of FIG. 5;

FIG. 7 is a schematic view of another perspective of the partial structure of FIG. 5;

FIG. 8 is a schematic structural view of the automatic hemming mechanism of FIG. 1;

fig. 9 is a schematic structural diagram of the docking unit in fig. 8;

FIG. 10 is a schematic structural diagram of the driving unit in FIG. 8;

wherein: A. a frame;

F. an automatic stitching mechanism; f1, a handpiece; f2, presser foot; f3, needle shuttle unit;

s, an automatic belt conveying mechanism; s1, an unwinding unit; 10. unwinding the rack; 11. a tape feeding frame; 110. a frame plate; 12. a deviation rectifying component; 120. a left stop block; 121. a right stopper; 122. an adjustment member; a. a fixed seat; b. a bolt; c. a guide bar; 123. a guide module; 124. a left arch module; 125. a right arch module; 126. a guide tongue; 127. a left limit strip; 128. a right limit strip; 13. a power transmission assembly; 130. an upper transfer roller; 131. a lower transfer roller; 132. a driver; s, a belt conveying channel; 4. a delivery assistance unit; 40. a tape feeding rod; 41. pressing a plate; e. a through hole; f. adjusting the bolt; g. a spring; 5. a braid caching unit; 50. a buffer base; 50a, passing through the hole; 51. a power device;

J. an automatic edge curling mechanism; j1, crimping chuck; j10, upper splint; j11, lower splint; j2, drive unit; 20. a winding member; 200. a winding seat; 201. a winding motor; 21. a first traverse member; 210. a base; 211. a slide base; 213. a first driving member; h. a drive motor; j. a drive gear; t, a rack; 214. a slide rail; 215. a slider; 22. a second traverse member; 220. a fixed seat; 221. a guide rail; 222. a guide shoe; 223. a second driving member; j3, docking unit; 30. a board insertion assembly; 300. a board inserting seat; k. a long hole; 301. calibrating the plug; s1, upper board slot; s2, lower board slot; 31. a docking assembly; 311. a first driver; 312. a second driver; g. a guide bar; j4, pinch plate; j5, a telescopic rod;

q, an automatic chopping mechanism; q1, a chopper; q2, a telescopic rod; q3, a storage box; q4 and an air blowing pipeline;

z, weaving the belt.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, the sewing machine for automatically curling, sewing and cutting a webbing of the present embodiment includes a frame a, an automatic sewing mechanism F, an automatic feeding mechanism S, an automatic curling mechanism J, and an automatic cutting mechanism Q.

Referring to fig. 2, an automatic sewing mechanism F, which includes a head F1, a presser foot F2, and a shuttle unit F3, is provided in a conventional sewing machine, and will not be described in detail and is clearly practicable.

And an automatic tape feeding mechanism S including an unwinding unit S1 for unwinding the rolled webbing.

The automatic hemming mechanism J comprises a hemming chuck J1 connected with the belt outlet end of the unwinding unit S1, a driving unit J2 used for driving the hemming chuck J1 to move so as to drive the belt conveying belt, and a connecting unit J3 used for connecting the hemmed belt to the position below the presser foot f2 from the hemming chuck J1.

And an automatic cutting mechanism Q provided between the automatic sewing mechanism F and the unwinding unit S1.

Referring to fig. 3, the unwinding unit S1 includes an unwinding frame 10 disposed on the frame of the webbing hemming apparatus, a tape feeding frame 11 disposed between the unwinding frame 10 and the hemming chuck J1, and a deviation rectifying assembly 12 and a transmission power assembly 13 disposed on the tape feeding frame 11, wherein the webbing tape is detachably mounted on the unwinding frame 10, the deviation rectifying assembly 12 forms a tape feeding passage S whose center line coincides with the center line of the tape feeding frame, and the tape feeding passage S has a width equal to the width of the webbing tape Z.

The power transmission assembly 13 includes an upper transmission roller 130 and a lower transmission roller 131 which are disposed at the discharge end of the tape feeding path s and extend in the width direction of the tape feeding path, and a driver 132 which drives the upper transmission roller 130 and the lower transmission roller 131 to rotate in opposite directions.

The upper conveying roller 130 is arranged on the belt conveying frame 11 in a manner of rotating around the axis of the upper conveying roller 130, and the upper conveying roller 130 can be vertically adjusted along the height of the belt conveying frame 11; the lower conveying roller 131 is a driving roller, and the driver 132 is used to drive the lower conveying roller 131 to rotate. Here, one is a driving roller and the other is a squeeze driven roller, so that the movement of the webbing Z-direction hemming jaw J1 can be realized by the opposite rotation of the driving and driven rollers.

In this example, the drive 132 is a conventional motor and pulley transmission.

As shown in fig. 4 and 5, the deviation rectifying assembly 12 includes a left stopper 120 and a right stopper 121 extending along the length direction of the webbing Z and capable of being adjusted in opposite directions, an adjusting member 122 for driving the left stopper 120 and the right stopper 121 to move synchronously closer or apart, a guide module 123 disposed at the end of the webbing output of the webbing feeding channel s and forming a webbing guide channel, and a left arch module 124 and a right arch module 125 disposed between the webbing guide channel and the webbing feeding channel and capable of avoiding the movement of the upper transfer roller 130.

Specifically, after the movement of the left stopper 120 and the right stopper 121 is adjusted, the center line of the webbing and the center line of the tape feeding passage can be overlapped regardless of the change of the width of the webbing, and the webbing is prevented from being twisted and fed to the hemming chuck.

In this example, the adjusting component 122 includes a fixing seat a fixed on two opposite sides of the tape feeding rack 11, and a bolt b rotatably engaged with the fixing seat a and threadedly engaged with the left stopper 120 and the right stopper 121, wherein the bolt b is provided with forward and reverse threads, the left stopper 120 and the right stopper 121 are engaged with the forward and reverse threads of the bolt b, and the left stopper 120 and the right stopper 121 are relatively close to and relatively far away from each other under the rotation of the bolt b. The synchronous opposite movement is implemented by adopting a matching mode of forward and reverse threads, and the operation is simple and convenient.

In this example, a guide bar c crossing the left stopper 120 and the right stopper 121 is further disposed between the two fixing bases a, wherein the left stopper 120 and the right stopper 121 move laterally relative to the guide bar c. Thus, the stability of the translation of the left stopper 120 and the right stopper 121 is ensured, so that the left stopper 120 and the right stopper 121 are always kept in a parallel state.

As shown in fig. 6 and 7, the rear end of the left arch module 124 is fixedly connected to the front end of the left stopper 120, and the front end abuts against the left side of the guide module 123; the rear end of the right arch module 125 is fixedly connected with the front end of the right block 121, the front end is pressed against the right side of the guide module 123, and a conduction band inlet of a webbing guide channel matched with the width of the webbing is formed between the front ends of the left arch module 124 and the right arch module 125. Herein, through the setting of meshbelt guiding channel and conduction band entry, make things convenient for the entering of meshbelt, simultaneously, at the position of upper and lower direction when having restricted the meshbelt transmission, reduced the perk phenomenon of meshbelt head and taken place, guarantee in the smooth entering turn-up chuck of meshbelt head.

Meanwhile, a guide tongue 126 extending between the front ends of the left arched module 124 and the right arched module 125 is further provided at the entrance of the guide module 123 corresponding to the guide belt, wherein the bottom surface of the guide tongue 126 is gradually inclined downward from the back to the front. The benefits of this arrangement are: the woven belt can conveniently enter the woven belt guide channel from the transmission roller. And a hemming jaw 2 having an upper jaw 20 and a lower jaw 21 moving toward each other and clamping or unclamping from front and rear surfaces of the webbing.

Further, the deviation rectifying assembly 12 further includes a left limiting strip 127 and a right limiting strip 128 disposed inside the webbing guide channel and fixedly connected to the front end portions of the left arch module 124 and the right arch module 125, respectively, wherein a belt feeding limiting channel extending along the length direction of the webbing is formed between the left limiting strip 127 and the right limiting strip 128. Thus, the webbing is ensured not to be shifted left and right in the webbing guide passage. A driving unit 3 for driving the hemming clamp 2 to move to carry the tape Z. The movements involved in this embodiment, which are a translational movement along the length direction and the width direction of the webbing Z, and a rotation of the driving crimp jaws 2 themselves, are also conventional structures, which are not explained in detail here, and are clearly implementable.

In this embodiment, the automatic tape feeding mechanism further comprises a tape feeding assisting unit 4 disposed at the tape feeding end of the tape feeding passage s and forming a tape feeding port matching with the thickness of the webbing, wherein the tape feeding assisting unit 4 comprises a tape feeding rod 40 at the front end for supporting the webbing Z and a pressing plate 41 pressed on a frame plate 110 of the tape feeding frame 11 with a downward pressing movement tendency, the tape feeding port is formed between the pressing plate 41 and the frame plate 110, and the webbing Z moves from the tape feeding port to the tape feeding passage s. Herein, through the setting of adjustable clamp plate, satisfy the flattening of different thickness meshbelts, and then ensure to get into to send the meshbelt in the passageway and be in the straight state.

Specifically, a through hole e is formed in the pressing plate 41, a butt joint hole is correspondingly formed in the frame plate 110, and an adjusting bolt f is adopted to penetrate through the through hole e to be connected with the butt joint hole, so that the downward pressing movement trend is mainly realized by a spring g which is sleeved on the periphery of the adjusting bolt f and two end portions of the spring g are abutted between the nut and the pressing plate 41. When the adjusting bolt f is screwed downwards, the spring is compressed, so that the pressing plate keeps the downward movement trend, and the mesh belt is flattened by the pressing plate and enters the belt conveying channel s relatively straightly when passing through the belt inlet.

The tape feeding rod 40 is a fixed rod or a rolling shaft which can freely rotate around the axis of the tape feeding rod, and the automatic tape feeding mechanism further comprises a braid buffer unit 5 arranged between the tape feeding rod 40 and the tape inlet.

Specifically, the braid buffer unit 5 comprises a buffer seat 50 for the braid to horizontally pass through a hole 50a, and a power device 51 for driving the buffer seat 50 to move up and down, wherein when the hole 50a of the buffer seat 50, the braid inlet and the braid feeding rod 40 are arranged in a flush manner, the braid Z is flatly fed to the braid feeding channel s; when the through hole 50a of the buffer seat 50 is vertically displaced from the tape inlet and the tape feed lever 40, the webbing Z is buffered.

As for the purpose of caching, there are only the following aspects: 1) when the upper transfer roller 130 and the lower transfer roller 131 perform the rewinding operation, the movement of the buffer seat 50 ensures that the webbing in the tape feeding path S is not arched to maintain the flatness; 2) the device can also be used for the connection of the roll changing operation of two web rolls.

In this example, the power unit 51 is a pneumatic cylinder (of course, it could also be a hydraulic cylinder, an oil cylinder, etc.).

Referring to fig. 8, a hemming jaw J1 engaged with a tape discharging end of the automatic tape feeding mechanism and having an upper jaw J10 and a lower jaw J11 moved toward each other, wherein the upper jaw J10 and the lower jaw J11 clamp or release the webbing Z from the front and rear surfaces thereof, respectively, and the upper jaw J10 and the lower jaw J11 are arranged in parallel.

And a driving unit J2, which is mainly used for driving the hemming chuck J1 to roll or send the webbing Z.

Referring to fig. 9, a docking unit J3, which is capable of docking the hemmed webbing from the hemming clamp J1 under the presser foot f2 of the automatic sewing mechanism, includes a gate assembly 30, and a docking assembly 31 for driving the gate assembly 30 to move.

The fork strap assembly 30 includes a fork strap mount 300 disposed on the left side of the presser foot f2, a calibration pin 301 disposed on the rear side of the presser foot and perpendicular to the hemming clamp J1.

The calibration plug 301 is provided with two inserting plate slots, one of which is an upper inserting plate slot s1, the other is a lower inserting plate slot s2, when the calibration plug 301 is vertically inserted into the crimping chuck J1, the upper clamping plate J10 is positioned in the upper inserting plate slot s1, the lower clamping plate J11 is positioned in the lower inserting plate slot s2, and the crimped webbing is unloaded from the crimping chuck J1 to the position below the pressure foot f2 by taking the inner side surface of the calibration plug 301 close to the pressure foot f2 as a reference and aligning. Through the accuracy of the inserting and matching, the braid is relatively stable in the unloading process after the curling, the braid is relatively neatly pressed under the presser foot, and the quality of the sewn product can meet the requirement.

In this example, when the calibration plug 301 is vertically inserted into the crimping chuck J1, the upper plate J10 and the lower plate J11 are in a water state, and the calibration plug 301 is inserted from the left side of the upper plate J10 and the lower plate J11 and is inserted from the right side. Therefore, the curled braid is ensured to be completely abutted against the inner side of the calibration plug from the side edge, and the trim of the curled edge part during the curled edge sewing of the braid is further improved.

The docking assembly 31 includes a first driver 311 for driving the calibration plug 301 to horizontally traverse the docking or resetting movement along its length direction, and a second driver 312 for driving the board socket 300 to move up and down.

Specifically, the first driver 311 is a horizontally disposed telescopic rod, and the second driver 312 is a vertically disposed telescopic rod.

In this example, the first actuator 311 and the second actuator 312 are air cylinders, and it should be noted that the first actuator 311 is provided at the upper end (telescopic end) of the second actuator 312, and is provided with a vertically extending guide rod d, so that the first actuator 311, the board socket 300, and the alignment plug 301 are synchronously moved up and down along the longitudinal direction of the guide rod d to switch the state.

The board mount 300 is disposed at the telescopic end of the first driver 311.

Meanwhile, an elongated hole k is provided in the socket 300, wherein the elongated hole k extends along the width direction of the calibration plug 301 (or socket slot).

The calibration plug 301 passes through the elongated hole k through the external bolt to fix the socket 300 and the calibration plug 301 relatively. Therefore, different positions are adjusted according to the woven belts with different widths so as to meet the connection requirement.

In this example, the automatic hemming mechanism further includes a belt pressing plate J4 provided on the right side of the presser foot and capable of pressing the webbing Z, and a telescopic rod J5 (in this example, an air cylinder) for driving the belt pressing plate J4 to move up and down. Specifically, the hemming chuck firstly clamps the hemming part to penetrate through the bottom of the presser foot, returns to the bottom of the presser foot under the state that the ribbon is pressed by the presser foot, unloads the hemming part from the hemming chuck by the calibration plug, and sews under the pressing of the presser foot, so that the processing of double-folded hollow ribbon is completed, the operation is simple, and the implementation is convenient.

Meanwhile, in order to facilitate the stitching and curling of the double-folded hollow-curled braid, the plugboard seat has a first working state and a second working state, and when the plugboard seat is in the first working state, the plugboard seat is aligned with the curling chuck and can be mutually spliced; when the plug board seat is in the second working state, the plug board seat and the hemming chuck are staggered up and down, and the plug board seat can avoid the transverse movement of the hemming chuck.

As shown in fig. 10, the driving unit J2 includes a winding part 20 for driving the hemming clip J1 to rotate on its own axis about the center of the upper plate J10 or the lower plate J11 in the longitudinal direction, a first traverse part 21 for driving the hemming clip J1 to traverse in the longitudinal direction of the card slot, and a second traverse part 22 for driving the hemming clip J1 to traverse in the longitudinal direction of the upper plate J10 or the lower plate J11. The webbing is hemmed under the winding member, and the hemming portion is laterally moved under the first and second lateral moving members.

The winding part 20 comprises a winding seat 200 and a winding motor 201, wherein the curling chuck J1 is rotationally connected with the winding seat 200 through a pivot shaft, and an output shaft of the winding motor 201 is in transmission connection with the pivot shaft.

The first traverse member 21 includes a base 210, a slider 211 provided on the base 210 so as to traverse along the length of the board slot, and a first driving member 213 for driving the slider 211 to move linearly, and the second traverse member 22 and the winding member 20 are provided on the slider 211.

The base 210 is further provided with a slide rail 214, and the slide 211 is slidably connected to the base 210 through a slide block 215 matching with the slide rail 214.

The first driving member 213 includes a driving motor h disposed on the base 210, a driving gear j disposed on the base 210 and between the base 210 and the sliding seat 211, and a rack t engaged with the driving gear j and fixed at the bottom of the sliding seat 211.

The second traverse member 22 includes a fixed base 220 fixed to the slide base 211, a guide rail 221 provided on the fixed base 220 and extending along a length direction of the hemming clamp J1, a guide shoe 222 slidably provided on the guide rail 221, and a second driving member 223 driving the guide shoe 222 to traverse on the guide rail 221, wherein the winding base 200 is fixedly coupled to the guide shoe 222.

The second driving member 223 is a telescopic rod. In this example, a cylinder.

Further, a discharge opening is opened in the frame between the presser foot f2 and the unwinding unit S1, and the automatic cutting mechanism Q includes a cutter Q1 provided above the ribbon exit end of the unwinding unit S1 and extending in the width direction of the webbing, an expansion link Q2 for driving the cutter Q1 to move up and down to cut the webbing, a storage box Q3 located inside the frame and communicating with the discharge opening, an air blow line Q4 located above the storage box Q3 and capable of blowing the webbing to the storage box Q3, and an air supply member.

In summary, the working process of this embodiment is as follows (taking double empty rolls as an example):

the woven belt is delivered from the belt outlet end part of the unwinding unit, the curling chuck clamps the woven belt and turns for 360 degrees, then the curling chuck clamps the curling part to penetrate through the bottom of the presser foot to a required length position firstly, the belt pressing plate moves downwards to press the woven belt, the curling chuck returns to the bottom of the presser foot, then the curling chuck is vertically and mutually spliced with the curling chuck through the calibration plug, when the curling chuck retreats along the width direction of the woven belt, the inner side of the calibration plug unloads the curling part from the alignment of the curling chuck to the position below the presser foot, after the presser foot is pressed down, the needle shuttle unit performs automatic sewing, after the sewing is completed, the presser foot is lifted, and the woven belt is driven to return under the reverse conveying of the upper conveying roller and the lower conveying roller, the woven belt head is separated from the presser foot, the air blowing pipeline starts to blow air, the curling head of the woven belt moves to the discharge opening and drops to the containing box, at the moment, when the required size is reached, an instruction is given to the telescopic rod to cut the ribbon, the ribbon is cut by the action of the chopper, after the cutting is finished, the blowing pipeline stops blowing, the finished ribbon falls into the storage box, a complete process is finished, and then a new process is repeated to realize automatic production.

The present invention has been described in detail in order to enable those skilled in the art to understand the invention and to practice it, and it is not intended to limit the scope of the invention, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.

Claims

1. The utility model provides an automatic sewing machine of turn-up, sewing up, cutting an organic whole of meshbelt, it includes:

a frame;

an automatic cutting mechanism provided between the automatic sewing mechanism and the unwinding unit,

the method is characterized in that:

the unwinding unit comprises an unwinding frame arranged on a frame of the woven tape hemming stitching equipment, a tape feeding frame positioned between the unwinding frame and the hemming chuck, a deviation correcting assembly and a transmission power assembly, wherein the deviation correcting assembly and the transmission power assembly are arranged on the tape feeding frame;

the unit of plugging into includes picture peg subassembly, drive the subassembly of plugging into of picture peg subassembly motion, wherein the picture peg subassembly is including setting up the left picture peg seat of presser foot, being located the rear side of presser foot and with the perpendicular calibration plug that sets up of turn-up chuck, the subassembly of plugging into includes the drive the first driver of motion is pegged graft or resets along self length direction horizontal sideslip to the calibration plug, the calibration plug on form with punch holder and lower plate assorted picture peg groove, work as the calibration plug with the turn-up chuck is pegged graft each other, meshbelt behind the turn-up with the calibration plug is close to the medial surface of presser foot is the benchmark and the alignment certainly unload extremely on the turn-up chuck under the presser foot.

2. The automatic webbing hemming, sewing and cutting integrated sewing machine as claimed in claim 1, wherein: the transmission power assembly comprises an upper transmission roller and a lower transmission roller which are arranged at the belt outlet end part of the belt conveying channel and extend along the width direction of the belt conveying channel, and a driver for driving the upper transmission roller and the lower transmission roller to rotate oppositely.

3. The automatic webbing hemming, sewing and cutting integrated sewing machine as claimed in claim 2, wherein: the deviation rectifying assembly comprises a left stop block, a right stop block and an adjusting component, wherein the left stop block and the right stop block extend along the length direction of the mesh belt and can be adjusted in opposite directions, and the adjusting component is used for driving the left stop block and the right stop block to synchronously move close to each other or move apart from each other.

4. The automatic webbing hemming, sewing and cutting integrated sewing machine of claim 3, wherein: the adjusting part comprises fixed seats respectively fixed at two opposite sides of the belt conveying frame, bolts which are in running fit with the fixed seats and are in threaded fit with the left stop block and the right stop block respectively, and a guide rod which transversely penetrates through the left stop block and the right stop block is arranged between the two fixed seats, wherein the left stop block and the right stop block move transversely relative to the guide rod;

the deviation rectifying assembly further comprises a guide module which is arranged at the belt outlet end part of the belt conveying channel and forms a braid guide channel, and a left arched module and a right arched module which are arranged between the braid guide channel and the belt conveying channel and can avoid the movement of the upper conveying roller, wherein the rear end part of the left arched module is connected with the front end part of the left stopper, and the front end part of the left arched module is abutted against or close to the left side of the guide module; the rear end part of the right arched module is connected with the front end part of the right baffle block, the front end part of the right arched module is abutted against or close to the right side of the guide module, and a conduction band inlet of the braid guide channel matched with the width of the braid is formed between the front end parts of the left arched module and the right arched module;

the guide module is also provided with a guide tongue extending into the space between the front end parts of the left arched module and the right arched module corresponding to the entrance of the guide belt, wherein the bottom surface of the guide tongue is gradually inclined downwards from back to front; the deviation rectifying assembly further comprises a left limiting strip and a right limiting strip which are arranged inside the braid guide channel and are respectively connected with the front end parts of the left arched module and the right arched module, wherein a belt conveying limiting channel extending along the length direction of the braid is formed between the left limiting strip and the right limiting strip.

5. The automatic webbing hemming, sewing and cutting integrated sewing machine as claimed in claim 1, wherein: the automatic tape feeding mechanism further comprises a tape feeding auxiliary unit which is arranged at the tape feeding end part of the tape feeding channel and forms a tape feeding port matched with the thickness of the woven tape, wherein the auxiliary unit comprises a tape feeding rod which is positioned at the front end and used for supporting the woven tape and a pressing plate which is pressed on a frame plate of the tape feeding frame in a manner of keeping the pressing movement trend, the tape feeding port is formed between the pressing plate and the frame plate, and the woven tape moves from the tape feeding port to the tape feeding channel.

6. The automatic webbing hemming, sewing and cutting integrated sewing machine of claim 5, wherein: the automatic belt feeding mechanism comprises a belt feeding rod, a belt feeding port, a belt feeding rod, a braid buffering unit, a power device and a belt feeding mechanism, wherein the belt feeding rod is a fixed rod or a rolling shaft capable of freely rotating around the axis of the belt feeding rod, the braid buffering unit is arranged between the belt feeding rod and the belt feeding port, the braid buffering unit comprises a buffering seat for allowing a braid to horizontally pass through a hole and the power device for driving the buffering seat to move up and down, and when the buffering seat, the belt feeding port and the belt feeding rod which penetrate through the hole, are arranged in a flush mode, the braid is flatly fed to the belt feeding channel; when the through hole of the buffer memory seat is relatively dislocated with the belt inlet and the belt conveying rod, the woven belt is buffered.

7. The automatic webbing hemming, sewing and cutting integrated sewing machine as claimed in claim 1, wherein: the utility model discloses a calibration plug, including upper plate, lower plate, calibration plug, upper plate, lower plate, calibration plug, upper plate with lower plate parallel arrangement, calibration plug is equipped with two picture peg grooves, and one of them is the picture peg groove, and another is the picture peg groove down, works as calibration plug with when the turn-up chuck is pegged graft perpendicularly, the upper plate be located go up the picture peg groove, the lower plate be located in the picture peg groove down, just calibration plug's grafting tip certainly the setting is worn out to the corresponding side of turn-up chuck.

8. The automatic webbing hemming, sewing and cutting integrated sewing machine as claimed in claim 1, wherein: the automatic hemming mechanism further comprises a belt pressing plate which is arranged on the right side of the presser foot and can be pressed on a woven belt, a telescopic rod for driving the belt pressing plate to move up and down, the connection assembly further comprises a second driver for driving the inserting plate seat to move up and down, the inserting plate seat has a first working state and a second working state, and when the inserting plate seat is in the first working state, the inserting plate seat is aligned with the hemming chuck and can be mutually inserted; when the plug board is in the second working state, the plug board seat and the hemming chuck are staggered up and down, and the plug board seat can avoid the transverse movement of the hemming chuck.

9. The automatic webbing hemming, sewing and cutting integrated sewing machine as claimed in claim 1, wherein: the driving unit comprises a winding part for driving the hemming clamp to rotate around the center of the length direction of the upper clamping plate or the lower clamping plate, a first traverse part for driving the hemming clamp to traverse along the length direction of the inserting plate groove, and a second traverse part for driving the hemming clamp to traverse along the length direction of the upper clamping plate or the lower clamping plate.

10. The automatic webbing hemming, sewing and cutting integrated sewing machine as claimed in claim 1, wherein: the automatic cutting mechanism comprises a chopping knife which is arranged above the belt outlet end part of the unwinding unit and extends along the width direction of the woven belt, a telescopic rod which drives the chopping knife to move up and down to cut the woven belt, a containing box which is positioned in the machine frame and communicated with the discharge port, an air blowing pipeline which is positioned above the containing box and can blow the woven belt to the containing box, and an air supply part.