Automatic winding shuttle changing device

Abstract

The utility model discloses an automatic winding shuttle changing device which comprises an installation base plate, and a wire pulling guide assembly, a winding and threading control assembly, a carrying assembly and a wire hooking assembly are arranged on the installation base plate. The stay wire guide assembly comprises a guide moving plate capable of moving front and back and a guide motor used for driving the guide moving plate to move. The guide moving plate is rotationally provided with a guide hook for dragging a bottom line; a tension spring is arranged between the guide moving plate and the guide hook, one end of the tension spring is connected with the guide moving plate, and the other end of the tension spring is connected with the rotatable guide hook. The guide motor drives the guide hook to pull the bottom thread to move on the bobbin case sleeve, the bottom thread is arranged in place in a penetrating mode, and the winding and perforating accuracy and the winding and shuttle changing efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of industrial sewing machines, in particular to an automatic thread winding and shuttle changing device. Background Art

[0002] The invention patent with patent number 202123068316.9 discloses an automatic winding and bottom shuttle changing mechanism, including a mounting base, which is provided with a winding and threading control device, a thread hooking device, an automatic shuttle changing device and a bobbin thread removing device. The winding and threading control device of the utility model can wind the thread on the bobbin and automatically thread the thread end into place on the bobbin case. The thread hooking device can automatically pass the thread end through the first thread guide hole on the bobbin case. The automatic shuttle changing device removes the bottom shuttle from the sewing machine and replaces the wound bottom shuttle to the sewing machine. The bobbin thread removing device removes the remaining thread from the removed bottom shuttle to facilitate the next step of winding.

[0003] This patent disclosure has certain flaws. The mechanism uses a threading control plate to automatically thread the bobbin thread through the first gap, the second gap, and the second thread guide hole. The threading process requires repeated rotation of the threading control plate to achieve continuous movement, making the entire process overly cumbersome. If any step is incorrect, the bobbin thread can get stuck, affecting the efficiency of winding and shuttle changing. Summary of the Invention

[0004] In response to the above technical problems, the utility model provides an automatic winding and shuttle changing device, in which a guide motor drives a guide hook to pull the bottom line to move on the bobbin case, and the bottom line is passed into place, thereby improving the accuracy of winding and perforation and improving the efficiency of winding and shuttle changing.

[0005] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: an automatic winding and shuttle changing device, including an installation base plate, on which are provided a wire pulling guide assembly, a wire winding and threading control assembly, a transport assembly and a wire hook assembly; the wire pulling guide assembly includes a guide movable plate that can move back and forth and a guide motor for driving the guide movable plate to move; the guide movable plate is rotatably installed with a guide hook for pulling the bottom line; a tension spring is provided between the guide movable plate and the guide hook, one end of the tension spring is connected to the guide movable plate, and the other end of the tension spring is connected to the rotatable guide hook.

[0006] In order to optimize the above technical solution, the present invention also includes the following improved technical solution.

[0007] A guide mounting plate is provided on the front side of the guide motor, a guide plate extending forward is provided on the front side of the guide mounting plate, a first protrusion and a second protrusion are provided on the upper end of the guide plate, a first platform is provided between the first protrusion and the second protrusion, and a guide rod is provided under the guide hook to abut against the guide plate.

[0008] The guide movable plate is slidably mounted on the guide plate via the second slide rail and the second sliding block; the guide movable plate is matched with the driving shaft of the guide motor via the guide movable member.

[0009] The above-mentioned winding and threading control assembly includes a rotatable winding shaft, one end of which is provided with a shaft connector, which is connected to the mounting base through a first bearing, and one end of the shaft connector is provided with a push rod cylinder; the other end of the winding shaft is used to fix the bobbin case and the bobbin core, and the winding shaft is provided with a magnet for attracting the bobbin core and a thread clamp for clamping the bottom thread end.

[0010] The front end of the above-mentioned bobbin case is provided with a guide rod and a bobbin case shifting rod, and one end of the guide rod is provided with a guide hole for the thread hook to pass through; the edge of the bobbin case is provided with a wire feed groove for the bottom line to enter, and the bobbin case is provided with a wire feed hole. The outside of the bobbin case is provided with a wire feed baffle for guiding the bottom line from the wire feed groove into the wire feed hole, and the wire feed baffle has a wire shifting edge for guiding the bottom line.

[0011] The above-mentioned transport assembly includes a second transport cylinder and a claw hand. The driving rod of the second transport cylinder is provided with a grabbing cylinder. The driving rod of the grabbing cylinder is connected to a rotatable claw hand. Pulling the claw hand can grab and release the bobbin case lever.

[0012] The above-mentioned line hook assembly includes a line hook movable seat and a line hook. A second line hook cylinder is provided at one end of the line hook movable seat. The line hook is connected to the driving rod of the second line hook cylinder. A line hook guide seat is provided at the other end of the line hook movable seat. A line hook guide hole is provided on the line hook guide seat for the line hook to extend out. A spring sheet is provided at the front end of the line hook guide seat that can rest against the lead rod on the bobbin case.

[0013] A cutter cylinder mounting seat is provided on the front side of the mounting base. The cylinder body of the cutter cylinder is connected to the cutter cylinder mounting seat. The driving rod of the cutter cylinder is connected to the cutter.

[0014] Compared with the prior art, the automatic winding and shuttle changing device of the present invention, when the bottom line is wound on the bobbin, is stuck in the wire feed groove on the edge of the bobbin case, the guide hook pulls the bottom line to move, and the bottom line enters the wire feed hole along the wire shifting edge; after the wire hook hooks the bottom line, the guide hook pulls the bottom line to move into the wire clamping piece to fix the bottom line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0016] Figure 2 It is a schematic exploded view of the three-dimensional structure of this embodiment.

[0017] Figure 3 yes Figure 2 Enlarged view of point B in the middle.

[0018] Figure 4 It is a schematic diagram of the exploded three-dimensional structure of the winding and threading control component.

[0019] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the wire guide assembly.

[0020] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the hook and line component.

[0021] Figure 7 yes Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0023] Figures 1 to 7 Shown is a schematic structural diagram of the present utility model.

[0024] 1 , a first guide wheel 22, a second guide wheel seat 23, a first guide wheel 24, a first guide wheel 25, a first guide wheel 26, a first guide wheel 27, a first guide wheel 28, a first guide wheel 29, a first guide wheel 30, a first guide wheel 31, a first guide wheel 32, a first guide wheel 33, a first guide wheel 34, a first guide wheel 35, a first guide wheel 36, a first guide wheel 37, a first guide wheel 38, a first guide wheel 39, a first guide wheel 40, a first guide wheel 41, a first guide wheel 42, a first guide wheel 43, a first guide wheel 44, a first guide wheel 45, a first guide wheel 46, a first guide wheel 47, a first guide wheel 48, a first guide wheel 49, a first guide wheel 50, a first guide wheel 51, a first guide wheel 52, a first guide wheel 53, a first guide wheel 54, a first guide wheel 55, a first guide wheel 56, a first guide wheel 57, a first guide wheel The sheet mounting ring 33, the wire clamping sheet 34, the wire pulling guide assembly, the guide mounting plate 35, the guide plate 36, the first protrusion 36a, the second protrusion 36b, the first platform 36c, the guide movable plate 37, the guide motor 38, the guide movable member 39, the second slide rail 40, the second slider 41, the guide cylinder 42, the guide shaft 43, the guide connecting block 44, the guide hook 45, the guide rod 46, the wire hook assembly, the wire hook mounting seat 47, the wire hook movable seat 48, the third slide rail 49, the third slider 50, the first wire hooking cylinder 51, the first wire hooking mounting seat 52, the first wire hooking joint 53, the second wire hooking cylinder 54, the second wire hooking mounting seat 55, the wire hook 56, the wire hook guide seat 57, the wire hook guide hole 58, the spring sheet 59, the cutter 60, the cutter cylinder 61, the cutter cylinder mounting seat 62, the tension spring 63, and the tension spring connecting member 64.

[0025] like Figure 1 and Figure 2As shown, the automatic bobbin winding and shuttle changing device of the present invention comprises a transport assembly, a winding and threading control assembly, a thread hook assembly, and a thread guide assembly. The transport assembly transfers the bobbin case 2 to the winding shaft 19 of the winding and threading control assembly. The winding and threading control assembly winds the lower thread onto the bobbin core 5. The thread guide assembly pulls the lower thread into place on the bobbin case 3. The thread hook assembly extends the thread hook 56 to pass the lower bobbin thread through the thread guide hole 6a.

[0026] like Figure 3 As shown, the bobbin case 2 is composed of a bobbin case 3 and a bobbin core 5. A thread guide rod 6 and a movable bobbin case lever 7 are installed at the front end of the bobbin case 3. One end of the thread guide rod 6 is provided with a thread guide hole 6a for the thread hook 56 to pass through.

[0027] The edge of the bobbin case 3 is provided with a wire feed groove 3a for the bottom thread to enter, and the bobbin case 3 is provided with a wire feed hole 3b. A wire feed baffle 4 is installed on the outside of the bobbin case 3 to guide the bottom thread from the wire feed groove 3a into the wire feed hole 3b. The wire feed baffle 4 has a wire diverting edge 4a for guiding the bottom thread. After the bottom thread enters the wire feed groove 3a, it moves along the wire diverting edge 4a to the wire feed hole 3b.

[0028] The transport assembly includes a first transport cylinder 12, a second transport cylinder 14 and a grabbing cylinder 17. The grabbing cylinder 17 clamps the empty bobbin case 2 through the claw hand 15 and moves the empty bobbin case 2 to the winding and threading control assembly through the first transport cylinder 12 and the second transport cylinder 14.

[0029] A transport base 8 is mounted on the front side of the mounting base 1. A transport movable seat 9 is provided on the transport base 8. A first slide rail 10 is mounted on the upper surface of the transport base 8. A first slider 11 is mounted on the lower surface of the transport movable seat 9 to engage with the first slide rail 10. A first transport cylinder 12 has its cylinder body mounted on one end of the transport base 8. The drive rod of the first transport cylinder 12 is connected to the transport movable seat 9. The first transport cylinder 12 pushes the transport movable seat 9 to move horizontally along the first slide rail 10.

[0030] A transport connecting plate 13 is installed at the front end of the transport movable base 9, and a second transport cylinder 14 is provided on one side of the transport connecting plate 13. The driving rod of the second transport cylinder 14 is connected to the claw hand mounting base 16, and a rotatable claw hand 15 is installed in the claw hand mounting base 16. A grabbing cylinder mounting base 18 is installed on the claw hand mounting base 16, and the cylinder body of the grabbing cylinder 17 is installed in the grabbing cylinder mounting base 18. The driving rod of the grabbing cylinder 17 is connected to the rotatable claw hand 15, and the grabbing cylinder 17 drives the claw hand 15 to open or close.

[0031] The first transport cylinder 12 and the second transport cylinder 14 move the claw hand 15 close to the bobbin case 2 to be wound, and the grabbing cylinder 17 drives the claw hand 15 to clamp the bobbin case lever 7 in front of the bobbin case 2, and then the bobbin case 2 is moved to the winding and threading control assembly by the first transport cylinder 12 and the second transport cylinder 14. After the bobbin case 2 is fixed, the grabbing cylinder 17 retracts the driving rod, the claw hand 15 releases the bobbin case lever 7, and the winding and threading control assembly starts winding.

[0032] like Figure 4 As shown, the bobbin winding and threading control assembly includes a winding motor 24, a push rod cylinder 29, a thread tensioner 34, and a winding shaft 19. The empty bobbin case 2 is fixed to the rotatable winding shaft 19. The push rod cylinder 29 pushes out the bobbin case 3 to expose the bobbin 5. The winding motor 24 drives the bobbin thread inside the thread tensioner 34 to rotate and wind it around the bobbin 5. After the bobbin thread has been wound around the bobbin 5 several times, it naturally escapes from the thread tensioner 34. After winding is complete, the push rod cylinder 29 retracts the winding shaft 19, and the bobbin case 3 is installed outside the bobbin 5. The bobbin thread is then inserted into the thread feed slot 3a on the bobbin case 3.

[0033] A rotatable winding shaft 19 is provided on the mounting base 1. A shaft connector 20 is provided at one end of the winding shaft 19. The shaft connector 20 is connected to the mounting base 1 via a first bearing 21. A first synchronous pulley 22 is provided at one end of the shaft connector 20. The first synchronous pulley 22 is mounted in a first synchronous pulley seat 23 via a second bearing 28. A winding motor mounting plate 25 is provided on the rear side of the mounting base 1. A winding motor 24 is mounted on the winding motor mounting plate 25. The drive shaft of the winding motor 24 is connected to a second synchronous pulley 26. A synchronous belt 27 is provided on the second synchronous pulley 26 and the first synchronous pulley 22. The winding motor 24 drives the synchronous belt 27 to rotate, and the synchronous belt 27 drives the winding shaft 19 to rotate.

[0034] A push rod cylinder mounting block 30 is provided on the rear side of the first synchronous wheel 22. The first synchronous wheel 22 is connected to the push rod cylinder mounting block 30. A push rod cylinder 29 is installed in the push rod cylinder mounting block 30. The driving rod of the push rod cylinder 29 is connected to the winding shaft 19. The push rod cylinder 29 pushes the bobbin case 3 on the winding shaft 19 to move back and forth.

[0035] A connecting ring 31 is provided in the middle of the winding shaft 19. A magnet 32 is housed within this ring and mounted on the winding shaft 19. Magnet 32 attracts the bobbin 5 within the bobbin case 2. A clip mounting ring 33 is sleeved around the outside of the connecting ring 31, onto which a thread tensioning piece 34 is mounted. The tip of the thread tensioning piece 34 is fixed to the clip mounting ring 33, while the tip of the thread tensioning piece 34 extends slightly outward.

[0036] The end of the bottom thread is clamped in the thread clamping piece 34. The winding motor 24 drives the thread end in the thread clamping piece 34 to rotate and wrap around the bobbin 5 for several turns. The bottom thread is tightened and then naturally comes out from the thread clamping piece 34. Then the winding motor 24 drives the bobbin 5 to rotate until the bottom thread of the set length is wound on the bobbin 5.

[0037] like Figure 5 As shown, the thread guide assembly includes a guide cylinder 42, a guide hook 45 mounted on the guide movable plate 37, and a guide plate 36 mounted in front of the guide mounting plate 35. After the lower thread is inserted into the thread inlet slot 3a of the bobbin case 3, the guide cylinder 42 drives the guide hook 45 forward, which pulls the lower thread forward until it enters the thread inlet hole 3b of the bobbin case 3. After the thread hook 56 in the thread hook assembly hooks the lower thread, the guide cylinder 42 drives the guide hook 45 backward, which pulls the lower thread backward until it is inserted into the thread clamp 34.

[0038] A guide mounting plate 35 is provided on the rear side of the mounting base plate 1, a guide motor 38 is installed on the rear side of the guide mounting plate 35, a guide plate 36 extending forward is installed on the side of the guide mounting plate 35, and a second slide rail 40 is installed on the inner side of the guide plate 36. A guide movable plate 37 is provided on the front side of the guide mounting plate 35, a guide movable member 39 is installed on the drive shaft of the guide motor 38, and the guide movable plate 37 is connected to the drive shaft of the guide motor 38 through the guide movable member 39. A second slider 41 that cooperates with the second slide rail 40 is installed on the outer side of the guide movable plate 37, and the guide motor 38 drives the guide movable plate 37 to move back and forth along the second slide rail 40.

[0039] A guide connecting block 44 is rotatably mounted on the guide movable plate 37 via a guide shaft 43. A guide hook 45 is mounted on the guide connecting block 44, which can pick up the bottom thread. Below the guide hook 45 is a guide rod 46 that engages with the guide plate 36 and is connected to the guide connecting block 44. As the guide connecting block 44 moves back and forth with the guide movable plate 37, the guide rod 46 abuts against the guide plate 36 and moves back and forth.

[0040] A tension spring 63 is provided in front of the guide movable plate 37, and a tension spring connector 64 is provided on the guide connecting block 44. The upper end of the tension spring 63 is connected to the guide connecting block 44 through the tension spring connector 64. A tension spring connector 64 is provided on the guide movable plate 37, and the lower end of the tension spring 63 is connected to the guide movable plate 37 through the tension spring connector 64.

[0041] The guide plate 36 has a first protrusion 36a and a second protrusion 36b at its upper end, with a first platform 36c located between the first and second protrusions 36a, 36b. When the guide rod 46 abuts the first and second protrusions 36a, 36b on the guide plate 36, it drives the guide connecting block 44 to rotate counterclockwise about the guide shaft 43. This causes the guide hook 45 to rotate counterclockwise, tightening the bobbin thread. At this point, the tension spring 63 is in a stretched state. When the guide rod 46 abuts the first platform 36c on the guide plate 36, it drives the guide connecting block 44 to rotate clockwise, causing the guide hook 45 to rotate clockwise, just clearing the outwardly extending portion of the thread clamp 34.

[0042] like Figure 6 As shown, the thread hook assembly includes a thread hook 56, a first thread hook cylinder 51, a second thread hook cylinder 54, and a thread hook guide seat 57. The first thread hook cylinder 51 and the second thread hook cylinder 54 drive the thread hook 56 to extend along the thread hook guide hole 58 on the thread hook guide seat 57, and the thread hook 56 passes through the thread guide hole 6a on the thread guide rod 6 to hook the bottom thread through the hole.

[0043] A line hooking mounting seat 47 is provided in front of the mounting base, and a line hooking movable seat 48 is provided on the line hooking mounting seat 47. A third slide rail 49 is mounted on the lower surface of the line hooking movable seat 48, and a third slider 50 is mounted on the line hooking mounting seat 47 to cooperate with the third slide rail 49. The cylinder body of a first line hooking cylinder 51 is mounted on the line hooking mounting seat 47 via a first line hooking mounting seat 52. The driving rod of the first line hooking cylinder 51 is connected to the line hooking movable seat 48 via a first line hooking joint 53. The first line hooking cylinder 51 drives the line hooking movable seat 48 to move back and forth along the third slide rail 49.

[0044] The cylinder body of the second line hooking cylinder 54 is mounted on one end of the line hooking movable seat 48 through the second line hooking mounting seat 55. The driving rod of the second line hooking cylinder 54 is mounted with a line hook 56. The other end of the line hooking movable seat 48 is mounted with a line hook guide seat 57, which is provided with a line hook guide hole 58 for guiding the line hook 56 to extend.

[0045] like Figure 7 As shown, a spring sheet 59 is installed at the front end of the thread hook guide seat 57. When the first thread hooking cylinder 51 drives the thread hook guide seat 57 to move forward, the spring sheet 59 at the front end of the thread hook guide seat 57 abuts against the lead rod 6 on the bobbin case 2. The spring sheet 59 assists in fixing the position of the bobbin case 2, preventing the bobbin case 2 from rotating, and improving the accuracy of the thread hook 56 perforation.

[0046] A cutter cylinder mounting base 62 is provided on the front side of the mounting base 1. The cylinder body of the cutter cylinder 61 is mounted on this mounting base 62. The drive rod of the cutter cylinder 61 is connected to the cutter 60, which cuts the bobbin thread. The thread hook 56 guides the bobbin thread through the thread guide hole 6a. The guide hook 45 in the thread guide assembly pulls the bobbin thread backward until it engages the thread clamp 34. The cutter cylinder 61 then drives the cutter 60 to cut the bobbin thread.

[0047] The best embodiment of the present invention has been described, and various changes or modifications made by ordinary technicians in this field will not depart from the scope of the present invention.

Claims

1. An automatic winding and shuttle changing device, comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a wire pulling guide assembly, a wire winding and threading control assembly, a transport assembly and a wire hook assembly; the wire pulling guide assembly includes a guide movable plate (37) that can move forward and backward and a guide motor (38) for driving the guide movable plate (37) to move; the guide movable plate (37) is rotatably installed with a guide hook (45) for pulling the bottom line; a tension spring (63) is provided between the guide movable plate (37) and the guide hook (45), one end of the tension spring (63) is connected to the guide movable plate (37), and the other end of the tension spring (63) is connected to the rotatable guide hook (45).

2. The automatic winding and shuttle changing device according to claim 1, characterized in that: A guide mounting plate (35) is provided on the front side of the guide motor (38), a guide plate (36) extending forward is provided on the front side of the guide mounting plate (35), a first protrusion (36a) and a second protrusion (36b) are provided on the upper end of the guide plate (36), a first platform (36c) is provided between the first protrusion (36a) and the second protrusion (36b), and a guide rod (46) is provided below the guide hook (45) and abuts against the guide plate (36).

3. The automatic winding and shuttle changing device according to claim 2, characterized in that: The guide movable plate (37) is slidably mounted on the guide plate (36) via a second slide rail (40) and a second slider (41); the guide movable plate (37) is matched with a driving shaft of a guide motor (38) via a guide movable member (39).

4. The automatic winding and shuttle changing device according to claim 3, characterized in that: The winding and threading control assembly comprises a rotatable winding shaft (19), one end of which is provided with a shaft connector (20), which is connected to the mounting base (1) via a first bearing (21), and one end of which is provided with a push rod cylinder (29); the other end of the winding shaft (19) is used to fix the bobbin case (3) and the bobbin (5), and the winding shaft (19) is provided with a magnet (32) for attracting the bobbin (5) and a thread clamp (34) for clamping the bottom thread end.

5. The automatic winding and shuttle changing device according to claim 4, characterized in that: The front end of the bobbin case (3) is provided with a thread guide rod (6) and a bobbin case shifting rod (7); one end of the thread guide rod (6) is provided with a thread guide hole (6a) for a thread hook (56) to pass through; the edge of the bobbin case (3) is provided with a thread feed groove (3a) for a bottom thread to enter; the bobbin case (3) is provided with a thread feed hole (3b); the outside of the bobbin case (3) is provided with a thread feed block (4) for guiding the bottom thread from the thread feed groove (3a) into the thread feed hole (3b); the thread feed block (4) has a thread shifting edge (4a) for guiding the bottom thread.

6. The automatic winding and shuttle changing device according to claim 5, characterized in that: The transport assembly comprises a second transport cylinder (14) and a claw hand (15); a grabbing cylinder (17) is provided on the driving rod of the second transport cylinder (14); the driving rod of the grabbing cylinder (17) is connected to the rotatable claw hand (15); and the claw hand (15) can be pulled to grab and release the bobbin case lever (7).

7. The automatic winding and shuttle changing device according to claim 6, characterized in that: The hooking assembly comprises a hooking movable seat (48) and a hook (56), one end of the hooking movable seat (48) is provided with a second hooking cylinder (54), the hook (56) is connected to the driving rod of the second hooking cylinder (54), the other end of the hooking movable seat (48) is provided with a hook guide seat (57), the hook guide seat (57) is provided with a hook guide hole (58) for the hook (56) to extend, and the front end of the hook guide seat (57) is provided with a spring sheet (59) that can abut against the lead rod (6) on the bobbin case (2).

8. The automatic winding and shuttle changing device according to claim 7, characterized in that: A cutter cylinder mounting seat (62) is provided on the front side of the mounting base (1); a cylinder body of the cutter cylinder (61) is connected to the cutter cylinder mounting seat (62); and a driving rod of the cutter cylinder (61) is connected to the cutter (60).

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