CN213739977U

CN213739977U - Active belt feeding device for sewing

Info

Publication number: CN213739977U
Application number: CN202022690616.XU
Authority: CN
Inventors: 方越洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-20
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a sewing is with initiative tape feeder, including the slide, the material wheel constructs with sending strip, send strip structure including sending strip support, the drive roll, driven voller and driving motor, send a support mounting in the frame of overedger, drive roll and driven voller rotate to install on sending strip support, form between drive roll and the driven voller and send a slit, driving motor installs on sending strip support, driving motor drives the drive roll and drives the driven voller and rotate, will come from the material wheel and be caused to send the banding area in the slit to move towards the slide initiative and transfer. Therefore, the edge wrapping belt can be guaranteed to be always in the best set tension conveying state, the phenomenon that the edge wrapping belt is in an over-tensioned or loose state is avoided, and at the moment, when the towel cloth blank is subjected to edge wrapping sewing, the problem of wrinkling cannot be caused, so that the edge wrapping quality is greatly improved. Meanwhile, the problem of stopping and arranging is solved, and the working efficiency of the whole overedger is improved.

Description

Active belt feeding device for sewing

Technical Field

The utility model relates to a device that is used for products such as mop, towelling cloth, scouring pad to sew specifically is a sewing is with initiatively sending the belting.

Background

The mop, the towel cloth and the scouring pad (also called dish washing towel) are daily articles frequently used in daily life and are called towels below, and the towels generally consist of towel cloth blanks and edge covers, and the edge covers are sewn on four sides of the towel cloth blanks through sewing equipment to prevent the towel cloth blanks from being off.

At present, the edge-covering sewing of towels in the market is mostly carried out in a mode of manually operating an edge-covering sewing machine, the production process basically depends on manual work to finish the edge-covering sewing work of the towels, the production efficiency is low, the production cost is high, and the production quality cannot be guaranteed. Therefore, automatic sewing equipment for towel edge covering sewing is developed and designed, and mainly comprises a controller, a storage device, a cutting device, a clamping device, a cloth pressing device, an overedger and the like. When the overedger performs the edge-covering sewing, an edge-covering belt, such as a non-woven fabric, is usually added to improve the quality of the edge-covering. At present, a belt conveying device of an edge wrapping belt mainly comprises a material wheel and a guide piece, wherein the edge wrapping belt is arranged on the material wheel in a charging barrel mode, and the free end of the edge wrapping belt enters the position below a sewing presser foot of an overedger after being guided by the guide piece. When in edge covering sewing, the pressing rotating device drives the towel cloth blank to move or rotate, the overedging machine carries out right-angle or round-angle four-edge overedging on the towel cloth blank in sequence, and in the process, the overedging belt passively moves and feeds along with the towel cloth blank. Therefore, the loose degree of the edge covering belt cannot be controlled, the edge covering belt may be fed in a tensioned state, and at this time, when the terry cloth blank is subjected to edge covering sewing, a problem of wrinkling may occur, thereby affecting the quality of edge covering. And once such a problem occurs, the finishing is required to be stopped, resulting in a reduction in the efficiency of the entire overedger.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a can keep bordure area to be lax state (no tension) or permanent tension send into active area of borduring sewing of sending into the hemming machine with initiative tape sending device has solved because the wrinkling that the bordure area tensioning leads to and unevenness scheduling problem, has improved the quality of borduring of towel.

The technical scheme of the utility model is realized like this:

the utility model provides a sewing is with initiatively sending belting, is including a slide, material wheel and a strip mechanism of sending, send strip mechanism including sending strip support, drive roll, driven voller and driving motor, send a support mounting in the frame of overedger, the drive roll with the driven voller rotate install in send on the strip support, the drive roll with form between the driven voller and send a slit, driving motor install in send on the strip support, the driving motor drive the drive roll drives the driven voller rotates, will come from the material wheel is led to send the banding area orientation in the slit a slide initiatively transfers.

The strip feeding mechanism further comprises a tension spring, a jacking head and a driving air cylinder, the strip feeding support comprises a fixed seat and a swing arm, the driving roller is rotatably installed on the fixed seat, the driven roller is rotatably installed in the middle of the swing arm, the swing arm is arc-shaped, one end of the swing arm is rotatably installed on the fixed seat, the other end of the swing arm is connected with one end of the tension spring, the other end of the tension spring is fixedly connected to the fixed seat, and a wrapping belt is elastically pressed on the driving roller by the driven roller under the traction action of the tension spring; the driving cylinder is arranged on the fixed seat and can drive the swing arm to rotate through the jacking head, so that the driven roller is separated from the edge wrapping belt; the strip conveying mechanism further comprises a first sensor for detecting the movement of the edge wrapping band, and the first sensor is electrically connected to a control system.

Further, the driving motor is a stepping motor or a servo motor.

Further, the device also comprises a second sensor for detecting the sag distance of the edge wrapping belt, and the second sensor is electrically connected to a control system.

The sewing machine further comprises a blowing mechanism, the blowing mechanism comprises a blowing needle and a fixed support, the pull cylinder is provided with a guide through hole used for guiding the conveying of the edge wrapping belt, the edge wrapping belt of the material wheel penetrates from one end of the guide through hole and then penetrates out from the other end of the guide through hole, the pull cylinder is installed on a rack of the overedger through the fixed support, a blowing inlet hole communicated with the guide through hole is formed in the outer side of the pull cylinder, the blowing needle is installed on the fixed support, one end of the blowing needle is directed and close to the blowing inlet hole, and the other end of the blowing needle is connected to an air source through a blowing pipeline.

Furthermore, the blowing mechanism also comprises a speed regulating valve for regulating the blowing speed of the blowing needle, and the speed regulating valve is arranged on the blowing pipeline.

Furthermore, the pull cylinder comprises a connecting sheet and a can, the connecting sheet is fixedly connected with the fixed support, the outer side surface of the can is a first arc-shaped curved surface, the inner side surface of the can is a second arc-shaped curved surface, the second arc-shaped curved surface extends towards the first arc-shaped curved surface in a protruding mode, and the first arc-shaped curved surface and the second arc-shaped curved surface enclose the guide through hole.

Furthermore, the air blowing mechanism further comprises a needle fixing seat, the needle fixing seat is installed on the fixing support, the air blowing needle is installed on the needle fixing seat, and the angle, the height and the distance of the air blowing needle relative to the air blowing inlet hole are adjusted through the needle fixing seat.

A sewing active belt conveying device comprises a pull cylinder, a material wheel and a blowing mechanism, wherein the blowing mechanism comprises a blowing needle and a fixed support, the pull cylinder is provided with a guide through hole for guiding the conveying of a binding belt, the binding belt from the material wheel penetrates through one end of the guide through hole and then penetrates out of the other end of the guide through hole, the pull cylinder is installed on a rack of an overedger through the fixed support, a blowing inlet hole communicated with the guide through hole is formed in the outer side of the pull cylinder, the blowing needle is installed on the fixed support, one end of the blowing needle points to and is close to the blowing inlet hole, and the other end of the blowing needle is connected to an air source through a blowing pipeline; the blowing mechanism further comprises a speed regulating valve for regulating the blowing speed of the blowing needle, and the speed regulating valve is arranged on the blowing pipeline.

The utility model has the advantages that: the utility model provides a sewing is with initiative belting, through driving motor drive roll, drive the driven voller, and clip the bordure area between drive roll and driven voller, thus, when the bordure area need be pull at the hemming machine sewing in-process, the rotary drive motor just can be with the bordure area propelling movement forward in advance, thereby guarantee that the bordure area is in the tension of best settlement throughout and carry, avoid the bordure area excessive tensioning or lax state to appear, at this moment, when borduring sewing towel cloth embryo material, can not produce the problem of corrugating, thereby the quality of borduring has been improved greatly. Meanwhile, the problem of stopping and arranging is solved, and the working efficiency of the whole overedger is improved. Preferably, the pull cylinder is provided with a blowing mechanism, the blowing mechanism mainly comprises a blowing needle, a fixed support, a speed regulating valve and an air source, a blowing inlet hole communicated with the guide through hole is formed in the outer side of the pull cylinder, the blowing needle is arranged at the blowing inlet hole and connected to the air source through a blowing pipeline, and air flow can be blown into the pull cylinder. Therefore, when the overedger needs to pull the edge wrapping band in the sewing process, the air blowing needle blows air flow into the pull cylinder to blow the edge wrapping band in a forward designated direction, the edge wrapping band can be further ensured to be in a loose state, and the edge wrapping band is prevented from being in a tensioning state. The speed regulating valve for regulating the blowing speed of the blowing needle is arranged on the blowing pipeline, so that the size of the air flow can be regulated, the pushing relaxation degree of the edge covering belt is coordinated with the sewing speed of the overedger, and the edge covering belt can be adapted to edge covering belts with different qualities.

Drawings

Fig. 1 is a perspective view of a front view of a preferred embodiment 1 of the active belt feeding device for sewing according to the present invention;

fig. 2 is a perspective view of a back view of the active belt feeding device for sewing according to the preferred embodiment 1 of the present invention;

FIG. 3 is an assembly view of the preferred embodiment 1 of the active belt feeding device for sewing and an overlock machine according to the present invention;

FIG. 4 is an assembly view of the preferred embodiment 2 of the active belt feeding device for sewing and an overlock machine according to the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

fig. 6 is a schematic structural view of the middle pull cylinder of the present invention;

fig. 7 is a perspective view of the front view of the active belt feeding device for sewing according to the preferred embodiment 3 of the present invention.

Detailed Description

In order to clearly understand the technical content of the present invention, the following embodiments are specifically mentioned, which are only for the purpose of better understanding the content of the present invention and not for the purpose of limiting the scope of the present invention.

Example 1

Fig. 1 is a perspective view of a front view of a preferred embodiment 1 of the active belt feeding device for sewing according to the present invention; fig. 2 is a perspective view of a back view of the active belt feeding device for sewing according to the preferred embodiment 1 of the present invention; FIG. 3 is an assembly view of the preferred embodiment 1 of the active belt feeding device for sewing and an overlock machine according to the present invention; referring to fig. 1, 2 and 3, the continuous sewing machine comprises a drawing cylinder 1, a material wheel 2 and a strip feeding mechanism 3, wherein the strip feeding mechanism comprises a strip feeding support 31, a driving roller 32, a driven roller 33 and a driving motor 34, the strip feeding support is mounted on a frame 100 of the continuous sewing machine, the driving roller and the driven roller are rotatably mounted on the strip feeding support, a strip feeding slot is formed between the driving roller and the driven roller, the driving motor is mounted on the strip feeding support, the driving motor drives the driving roller and drives the driven roller to rotate, and a wrapping strip A guided into the strip feeding slot from the material wheel is initiatively transferred towards the drawing cylinder 1.

In the structure, the strip feeding mechanism is arranged on the frame of the overedging machine, and can realize the function of actively feeding the edge wrapping band, so that when the edge wrapping band needs to be pulled in the sewing process of the overedging machine, the strip feeding mechanism actively conveys one section of edge wrapping band in advance, the edge wrapping band is guaranteed to be in a loose state all the time, the tensioning state of the edge wrapping band is avoided, and at the moment, when the blank of the towel cloth is subjected to edge wrapping sewing, the wrinkling problem can not be generated, so that the edge wrapping quality is greatly improved. Meanwhile, the problem of stopping and arranging is solved, and the working efficiency of the whole overedger is improved. The strip feeding mechanism mainly comprises a strip feeding support 31, a driving roller 32, a driven roller 33 and a driving motor 34, wherein the power output end of the driving motor is connected with the driving roller and can drive the driving roller to rotate, and the driving roller further drives the driven roller to rotate, so that the function of moving a wrapping tape clamped between the driving roller and the driven roller to the direction of a drawing cylinder of the overedger is realized.

Preferably, the strip feeding mechanism further comprises a tension spring 35, a jacking head 36 and a driving cylinder 37, the strip feeding support comprises a fixed seat 311 and a swing arm 312, the driving roller is rotatably mounted on the fixed seat, the driven roller is rotatably mounted in the middle of the swing arm, the swing arm is arc-shaped, one end of the swing arm is rotatably mounted on the fixed seat, the other end of the swing arm is connected with one end of the tension spring, the other end of the tension spring is fixedly connected to the fixed seat, and under the traction action of the tension spring, the wrapping belt is elastically pressed on the driving roller by the driven roller; the driving cylinder is arranged on the fixed seat and can drive the swing arm to rotate through the jacking head, so that the driven roller is separated from the edge wrapping belt; the strip feeding mechanism further comprises a first sensor 38 for detecting movement of the edge-wrapping band, the first sensor being electrically connected to a control system. Like this, swing arm one end is rotated and is installed on the fixing base, can carry out the luffing motion. One end of the tension spring is fixed on the fixing seat, the other end of the tension spring is connected with the other end of the swing arm, a pulling force can be applied to the swing arm, and the driven roller is installed in the middle of the swing arm and always applies an elastic force to the edge wrapping belt, so that the strip feeding slit between the driving roller and the driven roller has an elastic adjusting function and meets the requirements of edge wrapping belts with different thicknesses. The strip feeding mechanism further comprises a driving cylinder, and the driving cylinder is used for driving the swing arm to rotate, so that the swing arm drives the driven roller to open the edge wrapping belt. Thus, when the swing arm is not machined, the swing arm can be lifted up by driving the air cylinder. At this time, the edge wrapping tape should be in a stop state. If the situation that the scissors of the overedger do not cut the edge wrapping band exists, the first sensor can continuously detect the movement of the edge wrapping band. The first sensor can feed back a signal to the control system, and the control system can give an alarm to remind workers that a fault exists at the scissors of the overedger, so that the work can be timely processed.

Preferably, the driving motor is a stepping motor or a servo motor. As a preferred embodiment, the driving motor can be a stepping motor or a servo motor, and the purpose of actively and accurately controlling the conveying of the edge wrapping belt can be achieved. For example, constant tension delivery can be achieved by controlling the delivery speed of a stepper motor or a servo motor to match the traction speed of the overedger. But not limited thereto, the driving motor may be a general motor. At this time, in order to ensure that the edge wrapping belt actively conveyed by the driving motor is not too long, a second sensor 39 for detecting the droop distance of the edge wrapping belt can be arranged in a matching manner, the second sensor is electrically connected to the control system, the edge wrapping belt can be detected after the edge wrapping belt is conveyed too much and droops for a set distance, and a signal is fed back to the control system, and at this time, the control system can control the driving motor to temporarily stop. And after the detection signal of the second sensor is lost, the control system controls the driving motor to continue working.

Preferably, the strip feeding support further comprises a guide member 313, the guide member comprises a guide body 3131 and a guide hole 3132 formed on the guide body, and the guide body is fixedly connected with the strip feeding support, so that the guide hole is positioned on the conveying path of the edge covering belt. The edge wrapping belt passes through the guide hole to limit the conveying direction of the edge wrapping belt. Preferably, a guide is provided on each of the left and right sides of the strip feeding support. And one guide piece is positioned at one side of the driving roller and the driven roller and is used for guiding the strip feeding slit edge wrapping belt entering between the driving roller and the driven roller. The other guide piece guides the edge wrapping belt sent out from the strip feeding slit between the driving roller and the driven roller, and the edge wrapping belt is more favorable for extending to the sewing position of the overlock sewing machine.

Example 2

FIG. 4 is an assembly view of the preferred embodiment 2 of the active belt feeding device for sewing and an overlock machine according to the present invention; FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4; fig. 6 is a schematic structural view of the middle pull cylinder of the present invention; referring to fig. 4, 5 and 6, the active belt feeding device for sewing comprises a pulling cylinder 1, a material wheel 2 and a blowing mechanism 4, wherein the blowing mechanism comprises a blowing needle 41 and a fixed support 42, the pulling cylinder is provided with a guide through hole 11 for guiding the conveying of a wrapping belt, the wrapping belt A from the material wheel penetrates through one end of the guide through hole and then penetrates out of the other end of the guide through hole, the pulling cylinder is installed on a frame 100 of an overedger through the fixed support, a blowing inlet hole 12 communicated with the guide through hole is formed on the outer side of the pulling cylinder, the blowing needle is installed on the fixed support, one end of the blowing needle points to and is close to the blowing inlet hole, and the other end of the blowing needle is connected to an air source through a blowing pipeline 43;

in the structure, the air blowing inlet hole communicated with the guide through hole is formed in the outer side of the pull cylinder, the air blowing needle is arranged at the air blowing inlet hole and is connected to an air source through an air blowing pipeline, and air flow can be blown into the pull cylinder. Therefore, when the edge covering belt needs to be pulled in the sewing process of the overedging machine, the air blowing needle blows air flow into the pull cylinder to push the edge covering belt forwards in advance, so that the edge covering belt is always in a loose state, the tension state of the edge covering belt is avoided, at the moment, when the terry cloth blank is subjected to edge covering sewing, the wrinkling problem cannot be generated, and the edge covering quality is greatly improved. Meanwhile, the problem of stopping and arranging is solved, and the working efficiency of the whole overedger is improved.

Preferably, the blowing mechanism further comprises a speed regulating valve 44 for regulating the blowing rate of the blowing needle, and the speed regulating valve is arranged on the blowing pipeline. Therefore, the size of the air flow can be adjusted, the pushing and loosening degree of the edge wrapping belt is coordinated with the sewing speed of the overedger, and the edge wrapping belt can be adapted to edge wrapping belts with different qualities. Preferably, the speed regulating valve is arranged on the fixed support, so that the size of the air flow is convenient to operate.

Preferably, the slide includes a connecting sheet 13 and a can 14, the connecting sheet is fixedly connected with the fixed support, the outer side surface of the can is a first arc-shaped curved surface 141, the inner side surface of the can is a second arc-shaped curved surface 142, the second arc-shaped curved surface protrudes towards the first arc-shaped curved surface, and the first arc-shaped curved surface and the second arc-shaped curved surface enclose the guide through hole. Like this, the pull cylinder can realize fast through the connection piece with fixed bolster's fixed connection dismantled, the shape of connection piece is unlimited, and is preferred, and the connection piece includes first piece portion, second piece portion and connects the bending piece portion between them. Through the structure of enclosing the direction through-hole design of a can by two arc curved surfaces, can play better guide effect, and be convenient for bordure area threading and the propelling movement of blowing. More preferably, the can further comprises a turning part 15 which is in the shape of an arc surface with an outward opening and is connected to the front end port of the guide through hole for bending the edge wrapping belt led out from the guide through hole. The steering part is arc surface shape, which can limit two sides of the sheet edge wrapping belt and bend the two sides of the edge wrapping belt into opposite sides, so as to form a double-layer edge wrapping belt during sewing.

Preferably, the blowing mechanism further comprises a needle fixing seat 45, the needle fixing seat is mounted on the fixing support, the blowing needle is mounted on the needle fixing seat, and the blowing needle adjusts the angle, the height and the distance relative to the blowing inlet hole through the needle fixing seat. Through setting up the needle fixing base, can realize blowing the needle and the fixed bolster can dismantle fixed connection, and can adjust the angle, the height and the distance that the hand-hole was blown relatively to the air of blowing the needle. In specific implementation, referring to fig. 4, the fixing bracket has an extension 421, a strip hole 4211 is provided on the extension, and the needle holder includes a lower rod portion 451 and an upper rod portion 452. The side wall of the upper rod part is provided with a through hole 4521, the top end of the upper rod part is provided with a shaft hole 4522 communicated with the through hole, the air blowing needle penetrates through the through hole, a fastener is arranged in the shaft hole, the fastener is in threaded connection with the shaft hole, and the air blowing needle is locked in the through hole through the fastener. Preferably, the lower side of the through hole is designed to be triangular or arc-shaped matched with the size of the air blowing needle, so that the air blowing needle is convenient to fix. Therefore, the length of the air blowing needle penetrating out can be adjusted along the direction of the through hole, namely the distance between one end of the air blowing needle pointing to the air blowing inlet hole and the air blowing inlet hole can be adjusted. The lower rod part can be detachably fixed in the strip-shaped hole through a fastener. Like this, it is fixed again after the downthehole rotation lower rod part of bar, can realize adjusting the contained angle between air blowing needle and the slide, make the better propelling movement edge covering area of air current. The lower rod part is fixed after moving up and down in the strip-shaped hole, and the height of the air blowing needle relative to the air blowing hole can be adjusted. The lower rod part is moved in the strip-shaped hole and then fixed, and the distance between the air blowing needle and the pull cylinder can be adjusted.

Example 3

Fig. 7 is a perspective view of the front view of the preferred embodiment 3 of the active belt feeding device for sewing according to the present invention; referring to fig. 7, the active belt feeding device for sewing in this embodiment 3 is a combination of embodiments 1 and 2, and includes all technical features of embodiments 1 and 2, and has the dual effects of embodiments 1 and 2, that is, when the overedger needs to pull the overedger during sewing, an air flow is blown into the pull cylinder through the air blowing needle to push the overedger forward, and meanwhile, the strip feeding mechanism can realize the function of actively feeding the overedger strip, so as to better ensure that the overedger strip is always in a loose state, and avoid the overedger strip from being in a tensioned state, and at this time, when the terry cloth blank is subjected to overedged sewing, the problem of wrinkling will not occur, and the quality of the overedged strip is greatly improved. Meanwhile, the problem of stopping and arranging is solved, and the working efficiency of the whole overedger is improved.

The above embodiments have been described in detail with reference to the accompanying drawings. Those skilled in the art can make various modifications and changes to the above embodiments without departing from the spirit of the present invention, and the scope of the present invention is also covered by the appended claims.

Claims

1. A sewing active belt feeding device is characterized in that: including slide (1), material wheel (2) and send a mechanism (3), send a mechanism including sending a support (31), drive roll (32), driven voller (33) and driving motor (34), send a support mounting on hemming machine's frame (100), the drive roll with the driven voller rotate install in send on the support, the drive roll with form between the driven voller and send a slit, driving motor install in send on the support, driving motor drives the drive roll drives the driven voller rotates, comes from the material wheel is drawn to send bordure area (A) orientation in the slit the slide (1) initiative is transferred.

2. The active tape feeder for sewing according to claim 1, wherein: the strip feeding mechanism further comprises a tension spring (35), a jacking head (36) and a driving air cylinder (37), the strip feeding support comprises a fixed seat (311) and a swing arm (312), the driving roller is rotatably installed on the fixed seat, the driven roller is rotatably installed in the middle of the swing arm, the swing arm is arc-shaped, one end of the swing arm is rotatably installed on the fixed seat, the other end of the swing arm is connected with one end of the tension spring, the other end of the tension spring is fixedly connected to the fixed seat, and under the traction action of the tension spring, a wrapping belt is elastically pressed on the driving roller by the driven roller; the driving cylinder is arranged on the fixed seat and can drive the swing arm to rotate through the jacking head, so that the driven roller is separated from the edge wrapping belt; the sliver delivery mechanism further includes a first sensor (38) for detecting movement of the edge wrapping band, the first sensor being electrically connected to a control system.

3. The active tape feeder for sewing according to claim 1, wherein: the driving motor is a stepping motor or a servo motor.

4. The active tape feeder for sewing according to claim 2, wherein: and a second sensor (39) for detecting the sagging distance of the edge wrapping band, wherein the second sensor is electrically connected to a control system.

5. The active tape feeder for sewing according to claim 1, wherein: still include blowing mechanism (4), blowing mechanism is including blowing needle (41) and fixed bolster (42), the slide has guide through hole (11) that are used for guiding the edge-covering belt to carry, comes from edge-covering belt (A) of stockwheel is followed wear out from the other end after guide through hole one end penetrates, the slide passes through the fixed bolster is installed on overedger's frame (100), the outside of slide is formed with the intercommunication guide through hole blow hand-hole (12), blow the needle install in on the fixed bolster, the one end of blowing needle is directional and is close to blow the hand-hole, the other end of blowing needle is connected to an air supply through blowing pipeline (43).

6. The active tape feeder for sewing according to claim 5, wherein: the blowing mechanism (4) further comprises a speed regulating valve (44) used for regulating the blowing speed of the blowing needle, and the speed regulating valve is arranged on the blowing pipeline.

7. The active tape feeder for sewing according to claim 5, wherein: the slide comprises a connecting piece (13) and a can (14), the connecting piece is fixedly connected with the fixed support, the outer side face of the can is a first arc-shaped curved surface (141), the inner side face of the can is a second arc-shaped curved surface (142), the second arc-shaped curved surface extends towards the first arc-shaped curved surface in a protruding mode, and the first arc-shaped curved surface and the second arc-shaped curved surface are enclosed to form the guide through hole.

8. The active tape feeder for sewing according to claim 5, wherein: the blowing mechanism (4) further comprises a needle fixing seat (45), the needle fixing seat is installed on the fixing support, the blowing needle is installed on the needle fixing seat, and the angle, the height and the distance of the blowing needle relative to the blowing inlet hole are adjusted through the needle fixing seat.

9. A sewing active belt feeding device is characterized in that: the automatic material-wrapping machine comprises a pulling cylinder (1), a material wheel (2) and a blowing mechanism (4), wherein the blowing mechanism comprises a blowing needle (41) and a fixed support (42), the pulling cylinder is provided with a guide through hole (11) for guiding the conveying of a wrapping band, the wrapping band (A) from the material wheel penetrates through one end of the guide through hole and then penetrates out of the other end of the guide through hole, the pulling cylinder is installed on a rack (100) of the overedging machine through the fixed support, a blowing inlet hole (12) communicated with the guide through hole is formed in the outer side of the pulling cylinder, the blowing needle is installed on the fixed support, one end of the blowing needle points to and is close to the blowing inlet hole, and the other end of the blowing needle is connected to an air source through a blowing pipeline (43); the blowing mechanism (4) further comprises a speed regulating valve (44) used for regulating the blowing speed of the blowing needle, and the speed regulating valve is arranged on the blowing pipeline.

10. The active tape feeder for sewing of claim 9, wherein: the blowing mechanism (4) further comprises a needle fixing seat (45), the needle fixing seat is installed on the fixing support, the blowing needle is installed on the needle fixing seat, and the angle, the height and the distance of the blowing needle relative to the blowing inlet hole are adjusted through the needle fixing seat.