CN212800778U

CN212800778U - Automatic edge curling mechanism for ribbon edge curling and sewing

Info

Publication number: CN212800778U
Application number: CN202021511346.5U
Authority: CN
Inventors: 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: 2021-03-26
Anticipated expiration: 2030-07-27

Abstract

The utility model relates to an automatic turn-up mechanism that meshbelt hem seam was used, it includes the turn-up chuck, drive unit and the unit of plugging into, wherein the unit of plugging into includes the picture peg subassembly, the subassembly of plugging into of drive picture peg subassembly motion, this picture peg subassembly is including setting up at the left picture peg seat of presser foot, 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 drive calibration plug pegs graft or the first driver of motion that resets along self length direction horizontal migration, 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, meshbelt after the turn-up uses the medial surface that the calibration plug is close to the presser foot to unload to under the presser foot on the turn-up chuck of basis and alignment. The utility model discloses a calibration and plugging into of calibration plug for the turn-up folding portion that the presser foot pressed and established is neat range upon range of in meshbelt width direction's both sides, ensures to sew up the quality of back meshbelt turn-up, simple structure, and it is convenient to implement, and is with low costs.

Description

Automatic edge curling mechanism for ribbon edge curling and sewing

Technical Field

The utility model belongs to the sewing machine field, concretely relates to automatic turn-up mechanism that meshbelt hem seam was used.

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 hemming mechanism basically includes a hemming chuck engaged with the belt outlet end of the automatic belt feeding mechanism, a driving unit for driving the hemming chuck to wind and feed the webbing, and a connecting unit for connecting the hemmed webbing from the hemming chuck to the position under the presser foot of the automatic sewing mechanism.

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 utility model aims to solve the technical problem that overcome prior art not enough, provide an automatic turn-up mechanism that modified meshbelt hem seam was used.

In order to solve the technical problem, the utility model discloses take following technical scheme:

an automatic hemming mechanism for hemming and sewing a webbing, comprising:

the hemming chuck is connected with the belt outlet end part of the automatic belt conveying mechanism and is provided with an upper clamping plate and a lower clamping plate which move oppositely, wherein the upper clamping plate and the lower clamping plate clamp or loosen the woven belt from the front side and the back side of the woven belt respectively;

a driving unit for driving the hemming chuck to roll or feed the webbing;

the connecting unit can connect the curled braid to the position below a presser foot of an automatic sewing mechanism from the upper side of the curled edge chuck, and comprises a plugboard assembly and a connecting assembly for driving the plugboard assembly to move, wherein the plugboard assembly comprises a plugboard seat arranged on the left side of the presser foot and a calibration plug which is positioned on the rear side of the presser foot and is perpendicular to the curled edge chuck, the connecting assembly comprises a first driver for driving the calibration plug to horizontally move transversely along the length direction of the connector or move in a resetting manner, a plugboard groove matched with the upper clamping plate and the lower clamping plate is formed in the calibration plug, when the curled edge chuck horizontally sends the curled braid into the position below the presser foot, the calibration plug is mutually connected with the curled edge chuck, and the curled braid is unloaded to the position below the presser foot from the upper side of the curled edge chuck by taking the inner side face of the calibration plug close.

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 the utility model discloses a concrete implementation and preferred aspect, automatic hemming mechanism is still including setting up on the presser foot right side and can press the band pressing board on the meshbelt and the telescopic link of drive band pressing board up-and-down motion. 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 crimping collet to rotate around a center of the upper or lower plate in a length direction, a first traverse part driving the crimping collet to traverse along a length direction of the socket, and a second traverse part driving the crimping collet to traverse along a length direction of the upper or 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.

In addition, 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.

Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:

the utility model discloses a calibration and plugging into of calibration plug for the turn-up folding portion that the presser foot pressed and established is neat range upon range of in meshbelt width direction's both sides, and then ensures to sew up the quality of back meshbelt turn-up, and simple structure implements the convenience simultaneously, and with low costs.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

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

FIG. 2 is a schematic structural view of the automatic curling mechanism of FIG. 1;

fig. 3 is a schematic structural diagram of the docking unit in fig. 2;

FIG. 4 is a schematic structural diagram of the driving unit in FIG. 2;

wherein: 1. a crimping chuck; 10. an upper splint; 11. a lower splint;

2. a 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;

3. a 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; d. a guide bar;

4. a belt pressing plate;

5. a telescopic rod;

z, weaving the belt; y, presser foot.

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 automatic hemming mechanism for hemming and sewing a webbing of the present embodiment includes a hemming chuck 1, a driving unit 2, and a connecting unit 3.

Referring to fig. 2, the hemming clamp 1 is engaged with a tape discharging end of the automatic tape feeding mechanism, and has an upper clamp plate 10 and a lower clamp plate 11 which move in opposite directions, wherein the upper clamp plate 10 and the lower clamp plate 11 clamp or release the webbing Z from the front and the back of the webbing Z, respectively, and the upper clamp plate 10 and the lower clamp plate 11 are arranged in parallel.

And a driving unit 2 for driving the hemming clamp 1 to roll or send the webbing Z.

As shown in fig. 3, the docking unit 3 is capable of docking the beaded webbing from the hemming clamp 1 under the presser foot Y of the automatic sewing mechanism, and includes an insert plate assembly 30 and a docking assembly 31 for driving the insert plate assembly 30 to move.

The fork strap assembly 30 includes a fork strap mount 300 disposed on the left side of the presser foot Y, and a calibration plug 301 disposed on the rear side of the presser foot and perpendicular to the hemming clamp 1.

The calibration plug 301 is provided with two inserting plate slots, one of which is an upper inserting plate slot s1, and the other is a lower inserting plate slot s2, when the calibration plug 301 is vertically inserted into the hemming clamp 1, the upper clamping plate 10 is located in the upper inserting plate slot s1, the lower clamping plate 11 is located in the lower inserting plate slot s2, and the hemmed webbing is unloaded from the hemming clamp 1 to below the presser foot Y by taking the inner side surface of the calibration plug 301 close to the presser foot Y 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 crimp collet 1, the upper plate 10 and the lower plate 11 are in a water state, and the calibration plug 301 is inserted into the left side of the upper plate 10 and the lower plate 11 and is inserted out of 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 4 provided on the right side of the presser foot and capable of pressing the webbing Z, and a telescopic bar 5 (in this example, an air cylinder) for driving the belt pressing plate 4 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. 4, the driving unit 2 includes a winding member 20 for driving the hemming cartridges 1 to rotate on the center of the upper plate 10 or the lower plate 11 in the longitudinal direction, a first traverse member 21 for driving the hemming cartridges 1 to traverse in the longitudinal direction of the card slot, and a second traverse member 22 for driving the hemming cartridges 1 to traverse in the longitudinal direction of the upper plate 10 or the lower plate 11. 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 1 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 sliding base 211, a guide rail 221 provided on the fixed base 220 and extending along the longitudinal direction of the hemming head 1, 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 connected to the guide shoe 222.

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

The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. An automatic hemming mechanism for hemming and sewing a webbing, comprising:

a driving unit for driving the hemming clamp to roll or send the webbing;

the unit of plugging into, it can from on the crimping chuck plug with the meshbelt of turn-up plug into to automatic sewing machine construct the presser foot under, its characterized in that:

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 calibration plug is pegged graft or the first driver of the motion that resets along self length direction horizontal sideslip, the calibration plug on form with punch holder and lower plate assorted picture peg groove, work as the calibration plug with 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 hemming mechanism for hemming and sewing a webbing according to claim 1, wherein: the upper plate with lower plate parallel arrangement, the calibration plug is equipped with two picture peg grooves, and one of them is the upper plate groove, and another is lower picture peg groove, works as the calibration plug with when the turn-up chuck is pegged graft perpendicularly, the upper plate be located in the upper plate groove, the lower plate be located in the lower picture peg groove.

3. The automatic hemming mechanism for hemming and sewing a webbing according to claim 2, wherein: 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.

4. The automatic hemming mechanism for hemming and sewing a webbing according to 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 the woven belt, and a telescopic rod which drives the belt pressing plate to move up and down.

5. The automatic hemming mechanism for hemming and sewing a webbing according to claim 4 wherein: the connection assembly further comprises a second driver for driving the plug board seat to move up and down, wherein the plug board seat has a first working state and a second working state, and when the plug board seat is in the first working state, the plug board 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.

6. The automatic hemming mechanism for hemming and sewing a webbing according to 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.

7. The automatic hemming mechanism for hemming and sewing a webbing according to claim 6 wherein: 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, and an output shaft of the winding motor is in transmission connection with the pivot.

8. The automatic hemming mechanism for hemming and sewing a webbing according to claim 7 wherein: the first transverse moving component comprises a base, a sliding seat arranged on the base in a transverse manner along the length direction of the inserting plate groove, and a first driving piece driving the sliding seat to move linearly, and the second transverse moving component and the winding component are both arranged on the sliding seat.

9. The automatic hemming mechanism for hemming and sewing a webbing according to claim 8 wherein: the second traverse moving 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.

10. The automatic hemming mechanism for hemming and sewing a webbing according to claim 8 wherein: the base on still be equipped with the slide rail, the slide through with slide block sliding connection that the slide rail matches is in on the base, first driving piece including set up driving motor on the base, be located on the base and be in the base with drive gear between the slide and with drive gear cooperation just fixes the rack of slide bottom.