CN110965220B

CN110965220B - Thread take-up mechanism of industrial sewing machine

Info

Publication number: CN110965220B
Application number: CN201911270722.8A
Authority: CN
Inventors: 赵土钦; 柯志江; 罗志雄; 何崇希; 谢宇; 尹玲; 武静
Original assignee: Dongguan University of Technology
Current assignee: Dongguan University of Technology
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2021-04-27
Anticipated expiration: 2039-12-12
Also published as: CN110965220A

Abstract

The invention discloses a thread take-up mechanism of an industrial sewing machine, which relates to the technical field of thread take-up mechanisms of sewing machines, and specifically comprises a base, a four-bar linkage mechanism, a thread take-up device, a thread arranging device and an adjusting device, wherein the four-bar linkage mechanism is arranged above the base, one side above the four-bar linkage mechanism is connected with a fourth connecting arm, the thread take-up device is arranged on the fourth connecting arm, the thread arranging device is arranged on the other side above the four-bar linkage mechanism, the transmission end at the bottom of the four-bar linkage mechanism is connected with the adjusting device, the thread arranging device comprises a mounting frame, a connecting rod, a thread arranging frame and a thread arranging plate, the connecting rod is arranged at the centers of the outer walls at the two sides of the mounting frame, vertical plates are vertically welded at the two sides above the thread arranging frame, the thread arranging mechanism consists of a seat cylinder, a movable column and a curved sponge strip, solves the problems that the knitting thread is easy to be wound and knotted and the surrounding of the knitting thread body has more wool.

Description

Thread take-up mechanism of industrial sewing machine

Technical Field

The invention relates to the technical field of thread take-up mechanisms of sewing machines, in particular to a thread take-up mechanism of an industrial sewing machine.

Background

In the sewing machine, in the course of forming a stitch, a mechanism for conveying, recovering a needle thread and tightening the stitch is called a thread take-up mechanism, and the thread take-up mechanism can be divided into five types according to the structure and principle, namely a cam thread take-up mechanism, a connecting rod thread take-up mechanism, a slide rod thread take-up mechanism, a rotary thread take-up mechanism and a needle rod thread take-up mechanism, wherein the connecting rod thread take-up mechanism is a mechanism for driving a thread take-up lever to move by a four-link mechanism, and the thread take-up lever is a connecting rod of the four-link mechanism.

The existing thread picking mechanism does not have the function of arranging the knitting threads in the process of leading the threads, the knitting threads are easy to wind and knot, and the knitting threads are difficult to be subjected to smooth finish treatment, so that the floccules around the knitting threads are more, particularly, some special knitting threads are introduced into the thread picking mechanism without being tightened, and the floccules around the knitting threads are separated from the threads due to the actions of thread picking, threading, cloth pricking and the like, so that the problem of yarn breakage is caused.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a thread take-up mechanism of an industrial sewing machine, which solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a thread take-up mechanism of an industrial sewing machine comprises a base, a four-bar linkage mechanism, a thread take-up device, a thread arranging device and an adjusting device, wherein the four-bar linkage mechanism is installed above the base, a fourth connecting arm is connected to one side above the four-bar linkage mechanism, the thread take-up device is installed on the fourth connecting arm, the thread arranging device is installed on the other side above the four-bar linkage mechanism, the adjusting device is connected to the bottom transmission end of the four-bar linkage mechanism, the thread arranging device comprises a mounting frame, a connecting rod, a thread arranging frame and a thread arranging plate, the connecting rod is installed in the centers of the outer walls of the two sides of the mounting frame, the thread arranging frame is fixed to the end portion of the connecting rod, the vertical plates are vertically welded to the two sides above the thread arranging frame, a thread passing roller is connected between the vertical plates, a penetrating rod horizontally penetrates through the inner side of the thread arranging frame, the two ends of the penetrating, and the outer wall of disk is fixed with the bracing piece, the outer end welding of bracing piece has the line arrangement board, and the excircle arc wall of line arrangement board evenly is provided with the mechanism of twisting thread, it comprises a seat section of thick bamboo, activity post and bent shape sponge strip to twist thread the mechanism, the inside cross-under of a seat section of thick bamboo has the activity post, and the upper segment middle part of activity post is fixed with bent shape sponge strip.

Optionally, the four-bar linkage includes a first fixing rod, a second fixing rod, a first connecting arm, a second connecting arm and a third connecting arm, the first fixing rod and the second fixing rod are fixed on the inner side of the base in a left-right manner, the upper end of the first fixing rod is connected with the first connecting arm in a matching manner, the upper end of the second fixing rod is connected with the third connecting arm in a matching manner, the second connecting arm is connected between the top end of the third connecting arm and the top end of the first connecting arm, a first penetrating shaft penetrates through the inside of the connecting end of the first fixing rod and the first connecting arm, a second penetrating shaft penetrates through the inside of the connecting end of the second fixing rod and the third connecting arm, a transmission belt is sleeved between the end of the first penetrating shaft and the end of the second penetrating shaft, a third penetrating shaft penetrates through the inside of the connecting end of the third connecting arm and the second connecting arm, and a traction belt is connected between the third penetrating shaft and the second penetrating shaft, and the shaft ends of the third penetrating shafts respectively penetrate through the centers of the two sides of the mounting rack.

Optionally, the fourth connecting arm is connected to the outer portion of the connecting end of the first connecting arm and the connecting end of the second connecting arm in a clamped mode, a fourth penetrating shaft penetrates through the inner portion of the connecting end of the fourth connecting arm and the connecting end of the first connecting arm, a traction belt is connected between the fourth penetrating shaft and the first penetrating shaft, a fifth penetrating shaft penetrates through the one end of the yarn picking device and the top end of the fourth connecting arm, and a connecting belt is connected between the fifth penetrating shaft and the fourth penetrating shaft.

Optionally, the thread take-up device comprises a first thread take-up arm, a thread take-up curved plate, a second thread take-up arm, a thread take-up shaft, a thread take-up belt and a driving motor, the bottom end of the first thread take-up arm is connected with the top end of a fourth connecting arm through a fifth penetrating shaft, a groove is formed in the top end of the first thread take-up arm, the thread take-up curved plate is installed on the inner side of the groove, a thread take-up head is arranged on the top end of the thread take-up curved plate, the bottom end of the second thread take-up arm is connected with the bottom end of the fourth connecting arm through a fourth penetrating shaft, the thread take-up curved plate penetrates through the thread take-up shaft with the center of the connecting end of the first thread take-up arm, the thread take-up belt is sleeved outside of the two ends of the thread take-up shaft, the other end of the thread.

Optionally, an adjusting device is connected to a shaft end of the first through shaft, the adjusting device is composed of an eccentric wheel shaft, a clamping sleeve, a driving shaft and a knob, an eccentric wheel boss is fixed to one end, close to the first through shaft, of the eccentric wheel shaft, the clamping sleeve is connected to the other end of the eccentric wheel shaft through a screw, the driving shaft is connected to the end portion of the clamping sleeve, and the knob is installed at the tail end of the driving shaft.

Optionally, the cutting ferrule includes cutting ferrule bottom plate, link mechanism, coupling spring, cutting ferrule piston and cutting ferrule urceolus, cutting ferrule bottom plate and cutting ferrule piston all settle the inside at the cutting ferrule urceolus, and pass through the screw connection between the tip of eccentric shaft and the cutting ferrule bottom plate, both sides between cutting ferrule bottom plate and the cutting ferrule piston all are provided with link mechanism, and settle between the link mechanism has coupling spring, the slotted hole has all been seted up to the outer wall both sides of cutting ferrule urceolus, and link mechanism equallys divide and do not pass the slotted hole, the cutting ferrule urceolus all is fixed with the slider boss with the link inner wall both sides of drive.

Optionally, the link mechanism is composed of a fixed rod and a movable rod, the thick end of the fixed rod equally penetrates through the slotted hole, and the movable rod is connected to the front side and the rear side of the thin end of the fixed rod through screws.

Optionally, guide rail grooves are formed in two sides of the outer wall of one end, connected with the clamping sleeve outer barrel, of the driving shaft, the guide rail grooves and the sliding block bosses are matched in size, positioning grooves are formed in two sides of the outer wall of a shaft shoulder at one end, close to the knob, of the driving shaft, spring limiting grooves penetrate through the center of one end, close to the knob, of the driving shaft, and reset springs are installed between the clamping sleeve piston and the driving shaft and between the driving shaft and the knob.

Optionally, both sides of the inner wall of the knob are fixed with limiting strips, and the limiting strips are matched with the positioning grooves in size.

The invention provides a thread take-up mechanism of an industrial sewing machine, which has the following beneficial effects:

1. this thread take-up mechanism of industrial sewing machine, setting through the reason line device, it twines the knot easily to have solved the line of knitting, and the more problem of batting around the line body of knitting, the angle of reason line device can be adjusted to the connecting rod, in order to realize to the straightness and the tensioning of knitting line, the line of knitting is drawn through the outer circular arc wall of reason line board and is managed the line device, and obtain combing and bright and clean processing on the outer circular arc wall of line board, it can comb the line of knitting to rub the line mechanism, and each is rubbed the line mechanism and all has extending structure, can avoid causing serious damage to the knitting line, each is rubbed the line mechanism and all can bond the knitting line, the cotton of the whole body of knitting line can easily the actuation to the knitting line, thereby make the whole body of knitting line bright and clean, and clean and high in knitting line adhesion, difficult disconnection.

2. The thread take-up mechanism of the industrial sewing machine has the advantages that through the four-bar linkage mechanism, the thread take-up mechanism of the industrial sewing machine can not only complete four-bar linkage rotation movement, but also assist the thread take-up device, the thread arranging device and the adjusting device connected with the thread take-up mechanism to operate, and the thread take-up device and the thread arranging device are controlled to operate and are both in a belt transmission structure, so that the transmission structure is stable and reliable.

3. This industrial sewing machine's take-up mechanism through the first through axle, tractive belt, fourth through axle, connection belt and the cooperation of combining between the fifth through axle for take-up device can whole certain angle of deflecting, in order to accomplish the work of taking-up.

4. This industrial sewing machine's take-up mechanism accomplishes the work of picking up the line through the take-up device, and the power that deflects that the take-up device obtained is sufficient, installs three take-up bent plates on the first arm of picking up the line for this take-up device can wear three lines of knitting at most, thereby has greatly improved this take-up device's availability factor, and three take-up bent plates all can carry out angular rotation under the rotation control of take-up axle, open like the fan or receive like receipts, thereby the precision when having improved the take-up device take-up line.

5. The thread take-up mechanism of the industrial sewing machine adjusts the swing amplitude of the whole thread take-up mechanism through the adjusting device, and finally realizes the adjustment of the thread take-up amount of the industrial sewing machine, wherein the cutting sleeve not only plays a role in starting power transmission with an eccentric wheel shaft, but also realizes the state switching of the working state and the fixation of a rack, a cutting sleeve bottom plate and a cutting sleeve piston form a pair of parallel movable surfaces, a fixed rod and a movable rod form a rocker slider mechanism, namely a connecting rod mechanism, the fixed rod can move up and down through the slotted hole of a cutting sleeve outer cylinder through the left and right movement of the movable rod, meanwhile, two pairs of rocker slider mechanisms are symmetrically arranged and a connecting spring is installed between the connecting rod mechanisms, namely when the two movable rods move close to each other, the fixed rod can retract into the slotted hole, and the whole cutting sleeve can.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the thread take-up device according to the present invention;

FIG. 3 is a schematic structural diagram of a wire management device according to the present invention;

FIG. 4 is a schematic view of the installation structure of the wire management plate of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;

FIG. 6 is a schematic structural view of the thread twisting mechanism of the present invention;

FIG. 7 is a schematic view of the overall structure of the adjusting device of the present invention;

FIG. 8 is a schematic view of an explosive structure of the regulating device of the present invention;

fig. 9 is a schematic diagram of an explosive structure of the ferrule of the present invention;

fig. 10 is a schematic view of the overall structure of the ferrule of the present invention;

FIG. 11 is a schematic view of a cutting structure of the ferrule of the present invention;

FIG. 12 is a schematic view of a ferrule piston configuration of the present invention;

FIG. 13 is a schematic view of the knob structure of the present invention.

In the figure: 1. a base; 2. a four-bar linkage; 3. a first fixing lever; 4. a second fixing bar; 5. a first connecting arm; 6. a second connecting arm; 7. a third connecting arm; 8. a fourth connecting arm; 9. a first through shaft; 10. a second through shaft; 11. a drive belt; 12. a third through shaft; 13. a traction belt; 14. a fourth through shaft; 15. pulling the belt; 16. a fifth through shaft; 17. connecting a belt; 18. a thread take-up device; 19. a first take-up arm; 1901. grooving; 20. a thread take-up bent plate; 2001. picking a thread head; 21. a second take-up arm; 22. a take-up shaft; 23. a thread take-up belt; 24. a drive motor; 25. a wire arranging device; 26. a mounting frame; 27. a connecting rod; 28. a wire arranging frame; 29. a vertical plate; 30. a wire passing roller; 31. penetrating the rod; 32. a wafer; 33. a torsion spring; 34. a support bar; 35. a wire arranging plate; 36. a thread twisting mechanism; 37. a seat cylinder; 38. a movable post; 39. a curved sponge strip; 40. an adjustment device; 41. an eccentric wheel shaft; 42. eccentric wheel boss; 43. a card sleeve; 44. a card sleeve bottom plate; 45. a link mechanism; 46. fixing the rod; 47. a movable rod; 48. a connecting spring; 49. a ferrule piston; 50. cutting and sleeving the outer barrel; 51. a slot; 52. a slider boss; 53. a return spring; 54. a drive shaft; 5401. a guide rail groove; 5402. a positioning groove; 5403. a spring limit groove; 55. a knob; 5501. and (5) a limiting strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus are not to be construed as limiting the present invention, and furthermore, the terms "first", "second", "third", and the like are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.

Referring to fig. 1 to 13, the present invention provides a technical solution: a thread taking-up mechanism of an industrial sewing machine comprises a base 1, a four-bar linkage 2, a thread taking-up device 18, a thread arranging device 25 and an adjusting device 40, wherein the four-bar linkage 2 is installed above the base 1, one side above the four-bar linkage 2 is connected with a fourth connecting arm 8, the thread taking-up device 18 is installed on the fourth connecting arm 8, the other side above the four-bar linkage 2 is provided with the thread arranging device 25, the bottom transmission end of the four-bar linkage 2 is connected with the adjusting device 40, the thread arranging device 25 comprises a mounting frame 26, a connecting rod 27, a thread arranging frame 28 and a thread arranging plate 35, the centers of the outer walls of the two sides of the mounting frame 26 are respectively provided with the connecting rod 27, the end part of the connecting rod 27 is fixedly provided with the thread arranging frame 28, the vertical plates 29 are vertically welded on the two sides above the thread arranging frame 28, a thread passing roller 30 is connected between the vertical plates 29, a penetrating rod 31 horizontally penetrates through the inner side, the penetrating rod 31 penetrates into one end of the inside of the wafer 32 and is sleeved with a torsion spring 33, a supporting rod 34 is fixed on the outer wall of the wafer 32, a wire arranging plate 35 is welded to the outer end of the supporting rod 34, a wire twisting mechanism 36 is evenly arranged on the outer circular arc wall of the wire arranging plate 35, the wire twisting mechanism 36 is composed of a seat cylinder 37, a movable column 38 and a curved sponge strip 39, the movable column 38 penetrates through the inside of the seat cylinder 37, and the curved sponge strip 39 is fixed in the middle of the upper section of the movable column 38.

The thread arranging device 25 is used for arranging threads, the connecting rod 27 can rotate through transmission control, so that the connecting rod 27 can drive the thread arranging frame 28 to deflect up and down together to adjust the angle of the threads passing through the thread arranging device 25 so as to realize the straightening and tensioning of the threads, the threads are led through the thread arranging device 25 through the outer circular arc wall surface of the thread arranging plate 35 and are combed and polished on the outer circular arc wall surface of the thread arranging plate 35, thread twisting mechanisms 36 densely arranged on the thread arranging plate 35 are similar to a comb and can be used for combing the threads, each thread twisting mechanism 36 is provided with a telescopic structure, namely a seat cylinder 37 and a movable cylinder 38, a spring part is arranged between the seat cylinder 37 and the movable cylinder 38, the spring part can be elastically stretched and stretched between the seat cylinder 37 and the movable cylinder 38, so that the threads can be prevented from being seriously damaged, each thread twisting mechanism 36 can bond the threads, namely, the curved sponge strip 39 can be filled with moistening oil or clear water, when the weaving line passes through the outside of the curved sponge strip 39 and contacts with the outer wall of the curved sponge strip 39, the weaving line will contact with the nutrient-moistening oil or clear water filled in the curved sponge strip 39, and the floccule on the whole body of the weaving line will be attracted to the weaving line after contacting with any one of the above liquids, so that the whole body of the weaving line is smooth, the adhesion of the weaving line is high, and the weaving line is not easy to break.

The four-bar linkage 2 comprises a first fixed link 3, a second fixed link 4, a first connecting arm 5, a second connecting arm 6 and a third connecting arm 7, the first fixed link 3 and the second fixed link 4 are fixed on the inner side of the base 1 from left to right, the upper end of the first fixed link 3 is connected with the first connecting arm 5 in a matching way, the upper end of the second fixed link 4 is connected with the third connecting arm 7 in a matching way, the second connecting arm 6 is connected between the top end of the third connecting arm 7 and the top end of the first connecting arm 5, a first through shaft 9 penetrates through the inner part of the connecting end of the first fixed link 3 and the first connecting arm 5, a second through shaft 10 penetrates through the inner part of the connecting end of the second fixed link 4 and the third connecting arm 7, a transmission belt 11 is sleeved between the end part of the first through shaft 9 and the end part of the second through shaft 10, a third through shaft 12 penetrates through the connecting end of the third connecting arm 7 and the second connecting arm 6, and a traction belt 13 is connected between the third through shaft 12 and the second through shaft 10, and the shaft ends of the third through shaft 12 respectively pass through the centers of the two sides of the mounting rack 26.

The four-bar linkage 2 is used as a main motion mechanism of the thread take-up mechanism of the industrial sewing machine, not only can complete the four-bar linkage rotation motion, but also can assist the operation of the thread take-up device 18, the thread arranging device 25 and the adjusting device 40 connected thereon, and the operation of the thread take-up device 18 and the thread arranging device 25 is controlled to be a belt transmission structure, for example, the transmission belt 11 is used for driving the second through shaft 10 to rotate, the second through shaft 10 drives the third through shaft 12 to rotate through the traction belt 13, and the third through shaft 12 immediately pulls the thread arranging device 25 to rotate.

The joint of the fourth connecting arm 8 is arranged outside the connecting end of the first connecting arm 5 and the second connecting arm 6, a fourth penetrating shaft 14 penetrates through the connecting end of the fourth connecting arm 8 and the first connecting arm 5, a traction belt 15 is connected between the fourth penetrating shaft 14 and the first penetrating shaft 9, a fifth penetrating shaft 16 penetrates through the position between one end of the yarn picking device 18 and the top end of the fourth connecting arm 8, and a connecting belt 17 is connected between the fifth penetrating shaft 16 and the fourth penetrating shaft 14.

After the first through shaft 9 rotates, the fourth through shaft 14 can be controlled to rotate by the traction belt 15, the fifth through shaft 16 is controlled to rotate by the fourth through shaft 14 through the connecting belt 17, and after the fourth through shaft 14 and the fifth through shaft 16 rotate by a joint angle, the whole deflecting angle of the thread picking device 18 can be controlled to complete thread picking work.

The thread take-up device 18 comprises a first thread take-up arm 19, a thread take-up curved plate 20, a second thread take-up arm 21, a thread take-up shaft 22, a thread take-up belt 23 and a driving motor 24, wherein the bottom end of the first thread take-up arm 19 is connected with the top end of the fourth connecting arm 8 through a fifth penetrating shaft 16, the top end of the first thread take-up arm 19 is provided with a notch 1901, the thread take-up curved plate 20 is installed on the inner side of the notch 1901, the top ends of the thread take-up curved plate 20 are respectively provided with a thread take-up head 2001, the bottom end of the second thread take-up arm 21 is connected with the bottom end of the fourth connecting arm 8 through a fourth penetrating shaft 14, the thread take-up shaft 22 penetrates through the center of the connecting ends of the thread take-up curved plate 20 and the first thread take-up arm 19, the thread take-up belt 23 is sleeved on the outer portions of the two ends of the thread take-up shaft 22.

The thread taking-up device 18 is used for taking-up threads, the first thread taking-up arm 19 and the second thread taking-up arm 21 are respectively connected with two ends of the fourth connecting arm 8, so that synchronous deflection can be realized on the basis of the fourth connecting arm 8, the structure is arranged, so that the deflection power obtained by the thread taking-up device 18 is sufficient, smooth and continuous deflection action can be ensured, the first thread taking-up arm 19 is provided with three thread taking-up bent plates 20 in the groove 1901, the thread taking-up device 18 can lead at most three threads, the use efficiency of the thread taking-up device 18 is greatly improved, the three thread taking-up bent plates 20 can rotate angularly under the rotation control of the thread taking-up shaft 22, the thread taking-up shaft 22 is opened or closed like a fan, the thread taking-up belt 23 and the driving motor 24 are independently controlled, namely after the driving motor 24 is started, the thread taking-up belt 23 can be controlled to move, and the thread taking-up shaft 23 can be immediately driven to rotate, thereby rotating the take-up crank 20 connected thereto by an angle.

The shaft end of the first through shaft 9 is connected with an adjusting device 40, the adjusting device 40 is composed of an eccentric wheel shaft 41, a clamping sleeve 43, a driving shaft 54 and a knob 55, one end of the eccentric wheel shaft 41 close to the first through shaft 9 is fixed with an eccentric wheel boss 42, the other end of the eccentric wheel shaft 41 is in screwed connection with the clamping sleeve 43, the end part of the clamping sleeve 43 is connected with the driving shaft 54, and the knob 55 is installed at the tail end of the driving shaft 54.

The cutting sleeve 43 comprises a cutting sleeve bottom plate 44, a link mechanism 45, a connecting spring 48, a cutting sleeve piston 49 and a cutting sleeve outer cylinder 50, the cutting sleeve bottom plate 44 and the cutting sleeve piston 49 are both arranged inside the cutting sleeve outer cylinder 50, the end portion of the eccentric wheel shaft 41 is connected with the cutting sleeve bottom plate 44 through screws, the link mechanisms 45 are arranged on two sides between the cutting sleeve bottom plate 44 and the cutting sleeve piston 49, the connecting spring 48 is arranged between the link mechanisms 45, slotted holes 51 are formed in two sides of the outer wall of the cutting sleeve outer cylinder 50, the link mechanisms 45 respectively penetrate through the slotted holes 51, and sliding block bosses 52 are fixed on two sides of the inner wall of the connecting end of the cutting sleeve outer.

The link mechanism 45 is composed of a fixed rod 46 and a movable rod 47, the thick ends of the fixed rod 46 respectively penetrate through the slotted holes 51, and the front side and the rear side of the thin end of the fixed rod 46 are respectively connected with the movable rod 47 through screws.

The adjusting device 40 is used for adjusting the swing amplitude of the whole thread taking-up mechanism and finally realizing the adjustment of the thread taking-up amount of the industrial sewing machine, wherein a cutting sleeve bottom plate 44 which can be fixedly connected with an eccentric wheel shaft 41 and is connected with a movable rod 47, a cutting sleeve piston 49 which is used for being fixed with the circumferential direction of the rack and a cutting sleeve outer cylinder 50 which is used for transmitting power form the integral structure of the cutting sleeve 43, the cutting sleeve 43 not only has the starting force transmission function with the eccentric wheel shaft 41 but also realizes the switching of the working state and the fixed state of the rack, the cutting sleeve bottom plate 44 and the cutting sleeve piston 49 form a pair of parallel movable surfaces, wherein a fixed rod 46 and the movable rod 47 form a rocker slide block mechanism, namely a link mechanism 45, the fixed rod 46 realizes the up-and-down movement through a slotted hole 51 of the cutting sleeve outer cylinder 50 by the left-right movement of the movable rod 47, and simultaneously, that is, when the two movable rods 47 move closer together, the fixed rod 46 will retract into the slot 51, and the whole ferrule 43 will be released from the circumferential constraint of the frame.

Guide rail grooves 5401 are formed in two sides of the outer wall of one end, connected with the ferrule outer cylinder 50, of the driving shaft 54, the guide rail grooves 5401 are matched with the sliding block bosses 52 in size, positioning grooves 5402 are formed in two sides of the outer wall of a shaft shoulder at one end, close to the knob 55, of the driving shaft 54, a spring limiting groove 5403 penetrates through the center of one end, close to the knob 55, of the driving shaft 54, and a return spring 53 is installed between the ferrule piston 49 and the driving shaft 54 and between the driving shaft 54 and the knob 55.

Both sides of the inner wall of the knob 55 are fixed with a limiting strip 5501, and the limiting strip 5501 is matched with the positioning groove 5402 in size.

The cutting sleeve piston 49 is contacted with one end face of the driving shaft 54 through the return spring 53, the driving shaft 54 is matched with the cutting sleeve outer cylinder 50, so that the transmission of force in left-right and circumferential directions can be realized, and the driving shaft 54 and the knob 55 which are provided with a sliding block guide rail structure, namely a limiting strip 5501 and a positioning groove 5402, form a front end input pivot of the adjusting device 40.

In summary, when the thread take-up mechanism of the industrial sewing machine is used, the mechanism is assembled, the weaving thread is combed and polished by the thread arranging device 25, then the weaving thread is respectively led into the thread take-up head 2001 of each thread take-up curved plate 20 on the thread take-up device 18, and then the amplitude of the swing of the whole thread take-up mechanism is adjusted by the adjusting device 40, and finally the thread take-up amount of the industrial sewing machine is adjusted.

The working principle of the thread arranging device 25 is that clear water or nutrient solution is injected into each thread twisting mechanism 36, then the weaving threads pass through the thread twisting mechanisms 36, the weaving threads are in contact with the outer wall of the curved sponge strip 39 on the weaving threads, the outer wall of the curved sponge strip 39 is always kept wet due to the fact that sufficient clear water or nutrient solution is filled into the curved sponge strip 39, and after the weaving threads are wiped from the outer portion of the weaving threads, lint on the outer portion of the weaving threads is wetted, and is adsorbed to the thread body.

The working process of the thread taking-up device 18 is that the processed knitting threads are respectively led into a thread taking-up head 2001 at the head end of a thread taking-up curved plate 20, the thread taking-up head 2001 clamps the knitting threads and can drive the knitting threads to be pulled left and right, two thread taking-up arms of the thread taking-up device 18, namely a first thread taking-up arm 19 and a second thread taking-up arm 21 can synchronously rotate at the same direction on a fourth connecting arm 8, so that the angle of the whole thread taking-up device 18 can be adjusted and controlled, meanwhile, each thread taking-up curved plate 20 can be driven by a thread taking-up shaft 22 to rotate at a rotating angle, namely, each thread taking-up curved plate 20 can rotate at an angle on the first thread taking-up arm 19, so that the purpose of accurate thread taking-up can be achieved, when each thread taking-up curved plate 20 needs to rotate, a driving motor 24 can be started, and the driving motor 24 drives each thread taking-up curved plate 20 to generate opening and closing rotating actions similar.

The working principle of the adjusting device 40 is that when the industrial sewing machine is in a working state, namely the thread-taking-up mechanism is in a moving state, the adjusting device 40 is in a fixed state, at the moment, the eccentric wheel shaft 41 is subjected to the force from the thread-taking-up mechanism, the clamping sleeve 43 is in a non-working state of the adjusting device 40, the fixing rod 46 is moved outwards by the elastic force of the connecting spring 48, two ends of the driving shaft 54 are respectively and fixedly connected with the clamping sleeve 43 and the knob 55 in the circumferential direction, two end faces of the driving shaft 54 are both contacted with the return spring 53, and the tail end is contacted with the knob 55, because the shaft shoulder of the knob 55 is in the machine shell, the shaft shoulder of the knob 55 is pressed against the shell wall by a small amount of spring elastic force, the axial, circumferential and radial movement of the knob 55 is prevented, therefore, when the sewing machine is in a normal working state, the adjusting device 40 realizes the fixed constraint of the thread, when the adjustment is started, firstly, an axial force is applied to the knob 55, at this time, the return springs 53 on both sides of the driving shaft 54 are stressed and compressed, so that the ferrule piston 49 is pushed to move, the fixed rod 46 is moved inwards by the rocker-slider mechanism (the link mechanism 45) and is released from the circumferential constraint of the frame, then, the torque is applied to the knob 55, the circumferential rotation of the whole adjusting device 40 is realized, and the relative movement of the take-up lever rotating pair relative to the frame is realized through the eccentric wheel.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides an industrial sewing machine's thread take-up mechanism, includes base (1), four-bar linkage (2), thread take-up device (18), reason line device (25) and adjusting device (40), its characterized in that: the improved yarn arranging device is characterized in that a four-bar mechanism (2) is installed above the base (1), a fourth connecting arm (8) is connected to one side of the upper portion of the four-bar mechanism (2), a yarn picking device (18) is installed on the fourth connecting arm (8), a yarn arranging device (25) is installed on the other side of the upper portion of the four-bar mechanism (2), a bottom transmission end of the four-bar mechanism (2) is connected with an adjusting device (40), the yarn arranging device (25) comprises an installation frame (26), a connecting rod (27), a yarn arranging frame (28) and a yarn arranging plate (35), the connecting rod (27) is installed in the centers of the outer walls of the two sides of the installation frame (26), the yarn arranging frame (28) is fixed to the end portion of the connecting rod (27), vertical plates (29) are vertically welded to the two sides of the upper portion of the yarn arranging frame (28), a yarn passing roller (30) is connected between the vertical plates (29), and the both ends of penetrating pole (31) all cup jointed disk (32), it is equipped with torsional spring (33) to penetrate through pole (31) and penetrate into the inside pot head of disk (32), and the outer wall of disk (32) is fixed with bracing piece (34), reason line board (35) has been welded to the outer end of bracing piece (34), and the excircle arc wall of reason line board (35) evenly is provided with and rubs line mechanism (36), it comprises a seat section of thick bamboo (37), activity post (38) and bent shape sponge strip (39) to rub line mechanism (36), the inside of a seat section of thick bamboo (37) has worn movable column (38) and is fixed with bent shape sponge strip (39) in the middle part of the upper segment of activity post (38), four-bar linkage (2) are including first dead lever (3), second dead lever (4), first linking arm (5), second linking arm (6) and third linking arm (7), first dead lever (3) and second dead lever (4) are fixed at the inboard of base (1) on the left and right, a first connecting arm (5) is connected to the upper end of the first fixing rod (3) in a matching manner, a third connecting arm (7) is connected to the upper end of the second fixing rod (4) in a matching manner, a second connecting arm (6) is connected between the top end of the third connecting arm (7) and the top end of the first connecting arm (5), a first through shaft (9) penetrates through the inside of the connecting end of the first fixing rod (3) and the first connecting arm (5), a second through shaft (10) penetrates through the inside of the connecting end of the second fixing rod (4) and the third connecting arm (7), a transmission belt (11) is sleeved between the end of the first through shaft (9) and the end of the second through shaft (10), a third through shaft (12) penetrates through the inside of the connecting end of the third connecting arm (7) and the second connecting arm (6), and a traction belt (13) is connected between the third through shaft (12) and the second through shaft (10), the axle head that axle (12) was run through to the third passes from the both sides center of mounting bracket (26) respectively, fourth linking arm (8) joint is outside at the link of first linking arm (5) and second linking arm (6), and the inside fourth that has run through of the link of fourth linking arm (8) and first linking arm (5) runs through axle (14), it is connected with tractive belt (15) to run through between axle (14) and first axle (9) to fourth, it has fifth to run through axle (16) to run through between the one end of yarn picking device (18) and the top of fourth linking arm (8), and is connected with between fifth and runs through axle (16) and fourth axle (14) and is connected with between belt (17).

2. The thread take-up mechanism of an industrial sewing machine as claimed in claim 1, wherein: the thread taking-up device (18) comprises a first thread taking-up arm (19), a thread taking-up bent plate (20), a second thread taking-up arm (21), a thread taking-up shaft (22), a thread taking-up belt (23) and a driving motor (24), wherein the bottom end of the first thread taking-up arm (19) is connected with the top end of a fourth connecting arm (8) through a fifth through shaft (16), a notch (1901) is formed in the top end of the first thread taking-up arm (19), the thread taking-up bent plate (20) is installed on the inner side of the notch (1901), thread taking-up heads (2001) are arranged at the top ends of the thread taking-up bent plate (20), the bottom end of the second thread taking-up arm (21) is connected with the bottom end of the fourth through shaft (14), the thread taking-up shaft (22) penetrates through the center of the connecting end of the thread taking-up bent plate (20) and the first thread taking-up arm (19), and the thread taking-up belt (23) is sleeved outside two ends of the thread taking-, the other end of the thread take-up belt (23) is connected with a driving motor (24), and the driving motor (24) is arranged at the top end of the second thread take-up arm (21).

3. The thread take-up mechanism of an industrial sewing machine as claimed in claim 1, wherein: the shaft end of the first through shaft (9) is connected with an adjusting device (40), the adjusting device (40) is composed of an eccentric wheel shaft (41), a clamping sleeve (43), a driving shaft (54) and a knob (55), one end, close to the first through shaft (9), of the eccentric wheel shaft (41) is fixed with an eccentric wheel boss (42), the other end of the eccentric wheel shaft (41) is in screwed connection with the clamping sleeve (43), the end portion of the clamping sleeve (43) is connected with the driving shaft (54), and the knob (55) is installed at the tail end of the driving shaft (54).

4. The thread take-up mechanism of an industrial sewing machine as claimed in claim 3, wherein: the cutting sleeve (43) comprises a cutting sleeve bottom plate (44), a connecting rod mechanism (45), a connecting spring (48), a cutting sleeve piston (49) and a cutting sleeve outer cylinder (50), the cutting sleeve bottom plate (44) and the cutting sleeve piston (49) are arranged inside the cutting sleeve outer cylinder (50), the end portion of the eccentric wheel shaft (41) is connected with the cutting sleeve bottom plate (44) through screws, the connecting rod mechanisms (45) are arranged on two sides between the cutting sleeve bottom plate (44) and the cutting sleeve piston (49), the connecting spring (48) is arranged between the connecting rod mechanisms (45), slotted holes (51) are formed in two sides of the outer wall of the cutting sleeve outer cylinder (50), the connecting rod mechanisms (45) respectively penetrate through the slotted holes (51), and sliding block bosses (52) are fixed on two sides of the inner wall of the connecting end of the cutting sleeve outer cylinder (50) and the.

5. The thread take-up mechanism of an industrial sewing machine as claimed in claim 4, wherein: the connecting rod mechanism (45) is composed of a fixed rod (46) and a movable rod (47), the thick end of the fixed rod (46) penetrates through the slotted hole (51) respectively, and the front side and the rear side of the thin end of the fixed rod (46) are connected with the movable rod (47) through screws.

6. The thread take-up mechanism of an industrial sewing machine as claimed in claim 4, wherein: guide rail grooves (5401) are formed in two sides of the outer wall of one end, connected with the cutting sleeve outer cylinder (50), of the driving shaft (54), the guide rail grooves (5401) are matched with the sliding block bosses (52) in size, positioning grooves (5402) are formed in two sides of the outer wall of a shaft shoulder of one end, close to the knob (55), of the driving shaft (54), spring limiting grooves (5403) penetrate through the center of one end, close to the knob (55), of the driving shaft (54), and reset springs (53) are installed between the cutting sleeve piston (49) and the driving shaft (54) and between the driving shaft (54) and the knob (55).

7. The thread take-up mechanism of an industrial sewing machine as claimed in claim 6, wherein: the inner wall both sides of knob (55) all are fixed with spacing (5501), and size homogeneous phase cooperation between spacing (5501) and positioning groove (5402).