CN111575922A

CN111575922A - Cloth feeding adjusting system for sewing machine

Info

Publication number: CN111575922A
Application number: CN202010467725.7A
Authority: CN
Inventors: 陈小玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-08-25

Abstract

The invention discloses a cloth feeding adjusting system for a sewing machine, which structurally comprises the sewing machine, a motor, a cloth feeding adjusting device, a sewing platform and a lifting rod, and has the following effects: the cloth feeding adjusting device is horizontally arranged at the rear end of the sewing platform and matched with the sewing platform, the multi-layer sewing materials can be synchronously clamped and conveyed through the cloth feeding adjusting device, the multi-layer cloth is enabled to be horizontally stacked all the time in the sewing process, the phenomenon that the bottom cloth runs out of position in the sewing process is avoided, the clamping distance can be adjusted according to the thickness of the multi-layer cloth, the cloth with different thicknesses is convenient to convey, the edge cutting area of the sewn cloth is reduced, air negative pressure can be generated on the surface of the cloth in the conveying process, a few thread ends existing on the surface of the cloth are sucked, the cloth is prevented from being scattered on the surface of the sewing platform in the sewing process, and the recovery efficiency of the thread ends of the cloth is improved.

Description

Cloth feeding adjusting system for sewing machine

Technical Field

The invention relates to the field of sewing machines, in particular to a cloth feeding adjusting system for a sewing machine.

Background

The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material to enable one or more layers of sewing materials to be interwoven or sewed, when the sewing machine is used for sewing a plurality of layers of cloth, sewing work is usually carried out after the sewing worker overlaps the cloth, the sewing worker artificially pursues efficiency, the overlapping process of the cloth is often simplified when the plurality of layers of cloth are sewn, more cloth is required to be cut along the side edge of a sewing track of the sewn plurality of layers of cloth, waste is caused, the production cost is increased, and a few thread ends exist on the surface of the cloth and are attached to the surface of the cloth to be not beneficial to cleaning, therefore, a cloth feeding adjusting system for the sewing machine is required to be developed, so that the problems that when the sewing machine is used for sewing a plurality of layers of cloth, sewing work is usually carried out after the sewing work is overlapped by the sewing worker, the sewing worker artificially pursues efficiency, the overlapping process of the cloth is often simplified when the plurality, the multilayer cloth that makes up need cut more cloth along suture orbit side, causes the waste, increases manufacturing cost, and the cloth surface can have some end of a thread, and the end of a thread is attached to the cloth surface, is unfavorable for carrying out the problem of clearance.

Summary of the invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the utility model provides a work feed governing system that sewing machine was used, its structure includes sewing machine, motor, work feed adjusting device, sewing platform, lifter, sewing platform rear end be equipped with work feed adjusting device, work feed adjusting device and sewing platform be parallel to each other and the two cooperatees, work feed adjusting device both sides be axisymmetric structure and be equipped with the motor, motor and work feed adjusting device cooperate, the parallel equidistance of sewing platform bottom be equipped with two lifters, the lifter set up perpendicularly on sewing platform and extend the end and be connected with work feed adjusting device, sewing platform top be equipped with sewing machine, sewing machine and sewing platform cooperate.

As a further optimization of the technical proposal, the cloth feeding adjusting device consists of a cloth feeding roll shaft, an adjusting mechanism, a vertical rail, a recovery mechanism, a flow guide cover, a collecting mechanism and a cloth feeding clamping roll, a cloth feeding clamping roller is arranged below the cloth feeding roller shaft, the cloth feeding clamping roller and the cloth feeding roller shaft are parallel to each other, two regulating mechanisms are arranged between the cloth feeding roller shaft and the cloth feeding clamping roller in parallel and at equal intervals, the cloth feeding roller shaft is matched with the cloth feeding clamping roller through the regulating mechanisms, two ends of the cloth feeding roller shaft are provided with two recovery mechanisms in an axisymmetric structure, the recovery mechanisms are matched with the cloth feeding roller shaft, the front end of the recovery mechanism is provided with a vertical rail, the vertical rail and the recovery mechanism are in sliding fit, the recycling mechanism is characterized in that a flow guide cover is arranged on one side of the recycling mechanism and connected with the recycling mechanism, a collecting mechanism is arranged below the flow guide cover, and the recycling mechanism is matched with the collecting mechanism through the flow guide cover.

As the further optimization of this technical scheme, the work feed roller constitute by cavity roller, side shaft, blast pipe, negative pressure mouth, fixed block, the inside central point of work feed roller put and be equipped with the fixed block, fixed block and work feed roller fixed connection, the fixed block both sides be axisymmetric structure and be equipped with two side shafts, side shaft and fixed block connect, the cavity roller circle on both sides be axisymmetric structure and distribute the negative pressure mouth, negative pressure mouth and cavity roller structure as an organic whole, side shaft outer lane on evenly distributed have the blast pipe, blast pipe and cavity roller be parallel to each other and be connected with the negative pressure mouth.

As the further optimization of this technical scheme, adjustment mechanism constitute by adjusting nut, spring, slide, last roll stand, activity pole setting, lower roll stand, the parallel equidistance in lower roll stand both sides be equipped with two activity pole settings, activity pole setting and lower roll stand weld mutually, last roll stand both sides be axisymmetric structure and be equipped with two slides, slide and last roll stand looks lock, lower roll stand adopt sliding fit through activity pole setting and slide, activity pole setting top be equipped with adjusting nut, adjusting nut and activity pole setting adopt screw-thread fit, adjusting nut and slide between be equipped with the spring, spring upper and lower both ends fix on adjusting nut and slide.

As the further optimization of this technical scheme, recovery mechanism constitute by connecting axle sleeve, current-limiting cover, conical cover, impeller, gas filtering cover, branch, current-limiting cover one side be equipped with connecting axle sleeve, connecting axle sleeve and current-limiting cover connect, current-limiting cover opposite side be equipped with conical cover, conical cover outer lane on even equidistance be equipped with four branches, conical cover pass through branch and be connected with current-limiting cover, conical cover front end be equipped with gas filtering cover, gas filtering cover and conical cover looks lock, conical cover inside be equipped with the impeller, impeller and conical cover cooperate.

As a further optimization of the technical scheme, the collecting mechanism comprises a cross rod, double rows of transverse pipes, a transmission straight shaft, an exhaust straight pipe, a sealing cover, a scraper, filter hoods and a collecting box, wherein the top of the collecting box is provided with the sealing cover, the sealing cover is buckled with the collecting box, the exhaust straight pipe is arranged at the central position of the top of the sealing cover and is connected with the sealing cover, the double rows of transverse pipes are arranged at the bottom of the sealing cover and are connected with the exhaust straight pipe, two filter hoods are arranged at two sides of the collecting box in an axisymmetric structure and are buckled with the collecting box, the transmission straight shaft is arranged at the central position of the exhaust straight pipe and is vertically arranged in the exhaust straight pipe, the double rows of transverse pipes are arranged below the exhaust straight pipe, the cross rod is connected with the bottom end of the transmission straight shaft, two scrapers are arranged at two sides of the cross rod in an axisymmetric structure, the scraper blade is connected with the cross rod, and the scraper blade is matched with the filter mantle.

As a further optimization of the technical scheme, the lower roller frame is connected with the cloth feeding clamping roller through a bearing, and the upper roller frame is connected with the cloth feeding roller shaft through a bearing.

As a further optimization of the technical scheme, the connecting shaft is sleeved at the rear end of the vertical rail and is in sliding fit with the rear end of the vertical rail, and the connecting shaft is sleeved above the lifting rod and is connected with the lifting rod.

Advantageous effects

The cloth feeding adjusting system for the sewing machine is reasonable in design and strong in functionality, and has the following beneficial effects:

the cloth feeding adjusting device is horizontally arranged at the rear end of the sewing platform and matched with the sewing platform, and can be used for synchronously clamping and conveying multiple layers of sewing materials, so that multiple layers of cloth are always horizontally stacked in the sewing process, the phenomenon that bottom cloth is out of position in the sewing process is avoided, the clamping interval can be adjusted according to the thicknesses of the multiple layers of cloth, and the cloth with different thicknesses can be conveniently conveyed, so that the edge cutting area of the sewn cloth is reduced, air negative pressure can be generated on the surface of the cloth in the conveying process, a few thread ends existing on the surface of the cloth are sucked, the cloth is prevented from being dispersed on the surface of the sewing platform in the sewing middle line ends, and the recovery efficiency of the thread ends of the cloth is improved;

the connecting shaft of the invention is sleeved at the rear end of the vertical rail and is in sliding fit with the vertical rail, and the connecting shaft is sleeved above the lifting rod and is connected with the lifting rod, the lower roller frame is connected with the cloth feeding clamping roller through a bearing, the upper roller frame is connected with the cloth feeding roller shaft through a bearing, because the lower roll frame is in sliding fit with the upper roll frame through the movable upright stanchion, and the spring is vertically arranged between the adjusting nut and the sliding seat, the spring is compressed or stretched by adjusting the depth of the nut in the thread of the movable vertical rod to control the movable vertical rod to move upwards or downwards so as to achieve the effect of adjusting the distance between the cloth feeding roll shaft and the cloth feeding clamping roll, thereby adapting to the thickness of different cloth materials, leading the multi-layer cloth materials to be always horizontally stacked in the sewing process, avoiding the situation of bottom cloth material dislocation in the sewing process, thereby improving the sewing accuracy of the cloth and reducing the edge cutting area of the sewn cloth;

two sides of a fixed block are provided with two side shafts in an axisymmetric structure, one end of each side shaft penetrates through a conical cover to be connected with an impeller and a motor, a cloth feeding roller shaft rotates under the action of driving torque generated by the motor, the cloth feeding roller shaft is matched with a cloth feeding clamping roller to carry out linear conveying on cloth, the impeller rotates along with the cloth feeding roller shaft at the moment, air negative pressure is generated in the conical cover, air is sucked in through a negative pressure port distributed on the surface of the cloth feeding roller shaft, air is discharged through a filter cover arranged on two sides of a collecting box in the axisymmetric structure, in the process, under an air communication structure formed by a flow limiting cover, the conical cover, a flow guide cover, exhaust straight pipes and double rows of transverse pipes, a sucked thread end enters the collecting box to be collected along with air flow, and because the transmission straight shaft is meshed with the side shafts and connected with a transverse rod, two scraping plates in the axisymmetric structure rotate along with the transmission straight shaft, and the, scrape off the end of a thread that adheres to the filter mantle surface, improve the gas circulation nature, improve the recovery efficiency of end of a thread.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic front view of a cloth feed adjustment system for a sewing machine according to the present invention;

FIG. 2 is a schematic front view of the cloth feeding adjustment device of the present invention;

FIG. 3 is a schematic side sectional view of the cloth feeding roller shaft according to the present invention;

FIG. 4 is a front view of the adjustment mechanism of the present invention;

FIG. 5 is a schematic side sectional view of the recycling mechanism of the present invention;

fig. 6 is a front sectional view of the collecting mechanism of the present invention.

In the figure: the sewing machine-1, the motor-2, the cloth feeding adjusting device-3, the cloth feeding roller shaft-31, the hollow roller shaft-31 a, the side shaft-31 b, the exhaust pipe-31 c, the negative pressure port-31 d, the fixed block-31 e, the adjusting mechanism-32, the adjusting nut-32 a, the spring-32 b, the sliding seat-32 c, the upper roller frame-32 d, the movable vertical rod-32 e, the lower roller frame-32 f, the vertical rail-33, the recycling mechanism-34, the connecting shaft sleeve-34 a, the flow limiting cover-34 b, the conical cover-34 c, the impeller-34 d, the air filtering cover-34 e, the supporting rod-34 f, the flow guiding cover-35, the collecting mechanism-36, the cross rod-36 a, the double-row transverse pipe-36 b, the transmission straight shaft-36 c, An exhaust straight pipe-36 d, a seal cover-36 e, a scraper-36 f, a filter cover-36 g, a collection box-36 h, a cloth feeding pinch roller-37, a sewing platform-4 and a lifting rod-5.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.

Example 1

Referring to fig. 1-4, the present invention provides an embodiment of a cloth feeding adjustment system for a sewing machine, comprising:

referring to fig. 1, a cloth feeding adjusting system for a sewing machine structurally comprises a sewing machine 1, a motor 2, a cloth feeding adjusting device 3, a sewing platform 4 and a lifting rod 5, wherein the cloth feeding adjusting device 3 is arranged at the rear end of the sewing platform 4, the cloth feeding adjusting device 3 and the sewing platform 4 are parallel to each other and matched with each other, the motor 2 is arranged on two sides of the cloth feeding adjusting device 3 in an axisymmetric structure, the motor 2 is matched with the cloth feeding adjusting device 3, two lifting rods 5 are arranged at the bottom of the sewing platform 4 in parallel and at equal intervals, the lifting rods 5 are vertically arranged on the sewing platform 4, the extending end of the lifting rods is connected with the cloth feeding adjusting device 3, the sewing machine 1 is arranged at the top of the sewing platform 4, and the sewing machine 1 is matched with the sewing platform 4.

Referring to fig. 2, the cloth feeding adjusting device 3 comprises a cloth feeding roller shaft 31, an adjusting mechanism 32, a vertical rail 33, a recovery mechanism 34, a guide cover 35, a collecting mechanism 36 and a cloth feeding pinch roller 37, wherein the cloth feeding roller shaft 31 is provided with a cloth feeding pinch roller 37 below, the cloth feeding pinch roller 37 and the cloth feeding roller shaft 31 are parallel to each other, two adjusting mechanisms 32 are arranged between the cloth feeding roller shaft 31 and the cloth feeding pinch roller 37 in parallel and at equal intervals, the cloth feeding roller shaft 31 is matched with the cloth feeding pinch roller 37 through the adjusting mechanism 32, two recovery mechanisms 34 are arranged at two ends of the cloth feeding roller shaft 31 in an axisymmetric structure, the recovery mechanism 34 is matched with the cloth feeding roller shaft 31, the front end of the recovery mechanism 34 is provided with the vertical rail 33, the vertical rail 33 is arranged at the rear end of the sewing platform 4 and is engaged with the two, the vertical rail 33 and the recovery mechanism 34 are in a sliding fit, one side of the recovery mechanism 34 is provided with the guide cover 35, the guide cover 35 is connected with the recovery mechanism 34, the collection mechanism 36 is arranged below the guide cover 35, the recovery mechanism 34 is matched with the collection mechanism 36 through the guide cover 35, and the extending shafts at the two ends of the cloth feeding pinch roller 37 are in sliding fit with the two vertical rails 33 which are arranged on the two sides in parallel and equidistantly.

Referring to fig. 3, the cloth feeding roller shaft 31 is composed of a hollow roller shaft 31a, side shafts 31b, an exhaust pipe 31c, a negative pressure port 31d and a fixed block 31e, the fixed block 31e is arranged at the center inside the cloth feeding roller shaft 31, the fixed block 31e is fixedly connected with the cloth feeding roller shaft 31, two side shafts 31b are arranged on two sides of the fixed block 31e in an axisymmetric structure, the side shafts 31b are connected with the fixed block 31e, negative pressure ports 31d are distributed on two sides of the outer ring of the hollow roller shaft 31a in an axisymmetric structure, the negative pressure port 31d and the hollow roller shaft 31a are integrated, exhaust pipes 31c are uniformly distributed on the outer ring of the side shafts 31b, the exhaust pipes 31c and the hollow roller shaft 31a are parallel to each other and are connected with the negative pressure port 31d, and one exhaust pipe 31c is correspondingly connected with one negative pressure port 31 d.

Referring to fig. 4, the adjusting mechanism 32 is composed of an adjusting nut 32a, a spring 32b, a sliding seat 32c, an upper roll frame 32d, a movable upright rod 32e, and a lower roll frame 32f, the lower roll frame 32f is connected with a cloth feeding clamping roller 37 through a bearing, the upper roll frame 32d is connected with a cloth feeding roller shaft 31 through a bearing, two movable upright rods 32e are parallelly and equidistantly arranged on two sides of the lower roll frame 32f, the movable upright rod 32e is welded with the lower roll frame 32f, two sliding seats 32c are arranged on two sides of the upper roll frame 32d in an axisymmetric structure, the sliding seats 32c are buckled with the upper roll frame 32d, the lower roll frame 32f is in sliding fit with the sliding seat 32c through the movable upright rod 32e, the top end of the movable upright rod 32e is provided with the adjusting nut 32a, the adjusting nut 32a is in threaded fit with the movable upright rod 32e, the spring 32b is arranged between the adjusting nut 32a and the sliding seats 32c, the upper end and the lower end of the spring 32b are fixed on the adjusting nut 32a and the sliding seat 32 c.

Example 2

Referring to fig. 1-6, the present invention provides an embodiment of a cloth feeding adjustment system for a sewing machine, comprising:

Referring to fig. 2, the cloth feeding adjusting device 3 comprises a cloth feeding roller shaft 31, an adjusting mechanism 32, a vertical rail 33, a recovery mechanism 34, a guide cover 35, a collecting mechanism 36 and a cloth feeding pinch roller 37, wherein the cloth feeding roller shaft 31 is provided with a cloth feeding pinch roller 37 below, the cloth feeding pinch roller 37 and the cloth feeding roller shaft 31 are parallel to each other, two adjusting mechanisms 32 are arranged between the cloth feeding roller shaft 31 and the cloth feeding pinch roller 37 in parallel and at equal intervals, the cloth feeding roller shaft 31 is matched with the cloth feeding pinch roller 37 through the adjusting mechanism 32, two recovery mechanisms 34 are arranged at two ends of the cloth feeding roller shaft 31 in an axisymmetric structure, the recovery mechanism 34 is matched with the cloth feeding roller shaft 31, the front end of the recovery mechanism 34 is provided with the vertical rail 33, the vertical rail 33 is arranged at the rear end of the sewing platform 4 and is engaged with the two, the vertical rail 33 and the recovery mechanism 34 are in a sliding fit, one side of the recovery mechanism 34 is provided with the guide cover 35, the air guide sleeve 35 is connected with the recovery mechanism 34, the collection mechanism 36 is arranged below the air guide sleeve 35, and the recovery mechanism 34 is matched with the collection mechanism 36 through the air guide sleeve 35.

Referring to fig. 5, the recovery mechanism 34 is composed of a connecting shaft sleeve 34a, a flow-limiting cover 34b, a conical cover 34c, an impeller 34d, an air filtering cover 34e, and a support rod 34f, the flow-limiting cover 34b is fastened with a flow-guiding cover 35, the connecting shaft sleeve 34a is disposed on one side of the flow-limiting cover 34b, the connecting shaft sleeve 34a is connected with the flow-limiting cover 34b, the flow-limiting cover 34b is movably connected with a hollow roller shaft 31a through the connecting shaft sleeve 34a, the connecting shaft sleeve 34a is disposed at the rear end of a vertical rail 33 and is in sliding fit with the vertical rail 33, the connecting shaft sleeve 34a is disposed above a lifting rod 5 and is connected with the lifting rod, the conical cover 34c is disposed on the other side of the flow-limiting cover 34b, four support rods 34f are uniformly disposed on the outer ring of the conical cover 34c at equal intervals, the conical cover 34c is connected with the flow-limiting cover 34b through the support rod 34f, the gas filtering cover 34e is buckled with the conical cover 34c, the gas filtering cover 34e is arranged along the outer conical surface structure of the conical cover 34c and is opposite to the connecting shaft sleeve 34a, an impeller 34d is arranged in the conical cover 34c, the impeller 34d is matched with the conical cover 34c, and the side shaft 31b penetrates through the gas filtering cover 34e and the conical cover 34c to be connected with the impeller 34 d.

Referring to fig. 6, the collecting mechanism 36 comprises a cross bar 36a, a double row horizontal tube 36b, a transmission straight shaft 36c, an exhaust straight tube 36d, a sealing cover 36e, a scraper 36f, a filter cover 36g and a collecting box 36h, the collecting box 36h is in a hollow semicircular structure, the sealing cover 36e is arranged at the top of the collecting box, the sealing cover 36e is buckled with the collecting box 36h, the exhaust straight tube 36d is arranged at the center of the top of the sealing cover 36e, the exhaust straight tube 36d is connected with the sealing cover 36e, the double row horizontal tube 36b is arranged at the bottom of the sealing cover 36e, the double row horizontal tube 36b is connected with the exhaust straight tube 36d to form a T-shaped structure, the collecting box 36h is arranged below the deflector 35 and connected with the deflector 35 through the exhaust straight tube 36d, two filter covers 36g are arranged on two sides of the collecting box 36h in an axisymmetrical structure, and the filter cover 36g is buckled with the collecting box 36h, the central position of the exhaust straight pipe 36d is provided with a transmission straight shaft 36c, the transmission straight shaft 36c is vertically arranged in the exhaust straight pipe 36d, the top end of the transmission straight shaft 36c is meshed with the side shaft 31b, a cross rod 36a is arranged below the double-row transverse pipe 36b, the cross rod 36a is connected with the bottom end of the transmission straight shaft 36c, two scraping plates 36f are arranged on two sides of the cross rod 36a in an axisymmetric structure, the scraping plates 36f are connected with the cross rod 36a, one end of each scraping plate 36f is in an arc-shaped structure and arranged along an angle formed by the inner arc surface of the collection box 36h, and the scraping plates 36f are matched with the filter cover 36 g.

The specific realization principle is as follows:

the cloth feeding adjusting device 3 is horizontally arranged at the rear end of the sewing platform 4 and matched with the sewing platform 4, a plurality of layers of sewing materials can be synchronously clamped and conveyed through the cloth feeding adjusting device 3, so that the plurality of layers of cloth are always horizontally stacked in the sewing process, the condition that the bottom layer of cloth is deviated in the sewing process is avoided, the clamping distance can be adjusted according to the thickness of the plurality of layers of cloth, the cloth with different thicknesses can be conveniently conveyed, the edge cutting area of the sewn cloth is reduced, air negative pressure can be generated on the surface of the cloth in the conveying process, a plurality of thread ends existing on the surface of the cloth are sucked, the cloth is prevented from being dispersed on the surface of the sewing platform 4 in the sewing middle line end, the recovery efficiency of the thread ends of the cloth is improved, because the connecting shaft sleeve 34a is arranged at the rear end of the vertical rail 33 and is in sliding fit, and the connecting shaft sleeve 34, the lower roller frame 32f is connected with the cloth feeding clamping roller 37 through a bearing, the upper roller frame 32d is connected with the cloth feeding roller shaft 31 through a bearing, because the lower roller frame 32f is in sliding fit with the upper roller frame 32d through a movable upright rod 32e, a spring 32b is vertically arranged between an adjusting nut 32a and a sliding seat 32c, the spring 32b is compressed or stretched through the depth of a thread of the adjusting nut 32a in the movable upright rod 32e, so as to control the movable upright rod 32e to move upwards or downwards, the effect of adjusting the distance between the cloth feeding roller shaft 31 and the cloth feeding clamping roller 37 is achieved, the thickness of different cloth is adapted, the multi-layer cloth is horizontally stacked all the time in the sewing process, the condition that the bottom layer cloth is displaced in the sewing process is avoided, the sewing accuracy of the cloth is improved, the edgewise cutting area of the sewn cloth is reduced, because two side shafts 31b are arranged on two sides of a fixing block 31e in an axisymmetric structure, one end of the side shaft 31b penetrates through the conical cover 34c to be connected with the impeller 34d and the motor 2, under the action of driving torque generated by the motor 2, the cloth feeding roller shaft 31 rotates, the cloth feeding roller shaft 31 is matched with the cloth feeding clamping roller 37 to carry out linear conveying on cloth, at the moment, the impeller 34d rotates along with the cloth feeding roller shaft 31, air negative pressure is generated in the conical cover 34c, air is sucked through the negative pressure ports 31d distributed on the surface of the cloth feeding roller shaft 31, air is discharged through the filter covers 36g arranged on two sides of the collecting box 36h in an axial symmetry structure, in the process, the sucked thread ends enter the collecting box 36h along with air flow and are collected under an air communication structure formed by the flow limiting cover 34b, the conical cover 34c, the flow guide cover 35, the air discharge straight pipe 36d and the double-row transverse pipe 36b, the transmission straight shaft 36c is meshed with the side shaft 31b and connected with the transverse rod 36a, so that the two scraping plates 36f in the axial symmetry structure rotate along with the transmission straight shaft 36c, and the scraper 36f is in contact with the filter cover 36g in a reciprocating manner to scrape off the thread ends attached to the surface of the filter cover 36g, so that the gas circulation is improved, and the recovery efficiency of the thread ends is improved.

While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a work feed governing system that sewing machine was used, its structure includes sewing machine (1), motor (2), work feed adjusting device (3), sewing platform (4), lifter (5), its characterized in that:

the sewing machine is characterized in that a cloth feeding adjusting device (3) is arranged at the rear end of the sewing platform (4), motors (2) are arranged on two sides of the cloth feeding adjusting device (3), a lifting rod (5) is arranged at the bottom of the sewing platform (4), and a sewing machine (1) is arranged at the top of the sewing platform (4).

2. A cloth feed adjusting system for a sewing machine according to claim 1, characterized in that: work feed adjusting device (3) constitute by work feed roller (31), adjustment mechanism (32), vertical rail (33), recovery mechanism (34), kuppe (35), collection mechanism (36), work feed pinch roll (37), work feed roller (31) below be equipped with work feed pinch roll (37), work feed roller (31) and work feed pinch roll (37) between be equipped with adjustment mechanism (32), work feed roller (31) both ends be equipped with and retrieve mechanism (34), recovery mechanism (34) front end be equipped with vertical rail (33), recovery mechanism (34) one side be equipped with kuppe (35), kuppe (35) below be equipped with collection mechanism (36).

3. A cloth feed adjusting system for a sewing machine according to claim 2, characterized in that: the cloth feeding roller shaft (31) consists of a hollow roller shaft (31a), a side shaft (31b), an exhaust pipe (31c), a negative pressure port (31d) and a fixing block (31e), wherein the fixing block (31e) is arranged inside the cloth feeding roller shaft (31), the side shafts (31b) are arranged on two sides of the fixing block (31e), the negative pressure port (31d) is distributed on the outer ring of the hollow roller shaft (31a), and the exhaust pipe (31c) is distributed on the outer ring of the side shaft (31 b).

4. A cloth feed adjusting system for a sewing machine according to claim 2, characterized in that: adjustment mechanism (32) constitute by adjusting nut (32a), spring (32b), slide (32c), last roller frame (32d), activity pole setting (32e), lower roller frame (32f) both sides be equipped with activity pole setting (32e), last roller frame (32d) both sides be equipped with slide (32c), activity pole setting (32e) top be equipped with adjusting nut (32a), adjusting nut (32a) and slide (32c) between be equipped with spring (32 b).

5. A cloth feed adjusting system for a sewing machine according to claim 2, characterized in that: retrieve mechanism (34) constitute by connecting axle sleeve (34a), current-limiting cover (34b), cone cover (34c), impeller (34d), air filter cover (34e), branch (34f), current-limiting cover (34b) one side be equipped with connecting axle sleeve (34a), current-limiting cover (34b) opposite side be equipped with cone cover (34c), cone cover (34c) outer lane on be equipped with branch (34f), cone cover (34c) front end be equipped with air filter cover (34e), cone cover (34c) inside be equipped with impeller (34 d).

6. A cloth feed adjusting system for a sewing machine according to claim 2, characterized in that: collection mechanism (36) constitute by horizontal pole (36a), double horizontal pipe (36b), transmission straight shaft (36c), exhaust straight tube (36d), closing cap (36e), scraper blade (36f), filter mantle (36g), collection case (36h) top be equipped with closing cap (36e), closing cap (36e) top be equipped with exhaust straight tube (36d), closing cap (36e) bottom be equipped with double horizontal pipe (36b), collection case (36h) both sides be equipped with filter mantle (36g), exhaust straight tube (36d) central point put and be equipped with transmission straight shaft (36c), horizontal pipe (36b) below be equipped with horizontal pole (36a), horizontal pole (36a) both sides be equipped with scraper blade (36 f).

7. A cloth feed adjusting system for a sewing machine according to claim 4, characterized in that: the lower roller frame (32f) is connected with the cloth feeding clamping roller (37) through a bearing, and the upper roller frame (32d) is connected with the cloth feeding roller shaft (31) through a bearing.

8. A cloth feed adjusting system for a sewing machine according to claim 5, characterized in that: the connecting shaft sleeve (34a) is arranged at the rear end of the vertical rail (33) and is in sliding fit with the vertical rail, and the connecting shaft sleeve (34a) is arranged above the lifting rod (5) and is connected with the lifting rod.