Thread separating mechanism with rotating hook center for oscillation and high column sewing machine

Abstract

The present application relates to sewing machine technical field, specifically to the high stand type sewing machine and the thread separating mechanism which realize the swing with the center of the rotating shuttle, the thread separating mechanism, including the shuttle seat, the driving shaft, the rotating shuttle assembly and the main bearing, further including the thread separating assembly, the thread separating assembly including the rotating seat, the thread separating hook fixed to the front end of the rotating seat, the swing driving part and the swing part arranged below the rotating seat, the swing driving part including the ring part and the cam part, the lower end of the rotating shuttle assembly protruding with the rotating shaft, the ring part being sleeved outside the rotating shaft and being fixedly connected with the rotating shaft, the swing part being provided with the clamping groove, the cam part being arranged in the clamping groove, the cam part abutting against the inner side wall of the clamping groove, the rear end of the swing part being connected with the shuttle seat through the pin, and the front end of the swing part being connected with the rotating seat through the pin. The thread separating mechanism has simple structure, small circumferential section, and the column diameter can be minimized, thereby meeting the thread sewing requirements of the shoes with smaller size or the bags with smaller opening.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewing machine technical field, specifically to the line separating mechanism with the rotating hook center realizing swing and the high column type sewing machine. BACKGROUND

[0002] The roller car is a kind of sewing machine, which is used for sewing boots, sports shoes, leisure shoes, sponge shoes, high-grade leather shoes and bags, and there is no problem in making such large-size shoes, but it is not so easy to make small-size shoes such as women's shoes or children's shoes. At present, the line separating structure of the existing roller car is relatively complex, and the circumferential area is relatively large, which leads to the fact that the diameter of the roller column cannot be further miniaturized, and the diameter of the column is too large, so that the small-size shoes or the bags with small opening cannot be clamped into the column head for sewing. SUMMARY

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present application is to provide a line separating mechanism with the rotating hook center realizing swing, which has simple structure, small circumferential cross section and minimum column diameter, so as to meet the sewing requirements of small-size shoes or bags with small opening.

[0004] The purpose of the present application is achieved by the following technical scheme: a line separating mechanism with the rotating hook center realizing swing, comprising a shuttle seat, a driving shaft, a rotating hook assembly and a main bearing, the main bearing is arranged in the shuttle seat, the upper end of the driving shaft passes through the main bearing and is fixedly connected with the rotating hook assembly, and further comprising a line separating assembly, the line separating assembly comprises a rotating seat, a line separating hook fixedly arranged at the front end of the rotating seat, a swing driving member and a swing member arranged below the rotating seat, the swing driving member comprises a ring portion and a cam portion, the lower end of the rotating hook assembly is provided with a rotating shaft, the ring portion is sleeved outside the rotating shaft and is fixedly connected with the rotating shaft, the swing member is provided with a clamping groove, the cam portion is arranged in the clamping groove, and the cam portion abuts against the inner side wall of the clamping groove, the rear end of the swing member is connected with the shuttle seat through a pin, and the front end of the swing member is connected with the rotating seat through a pin.

[0005] Among them, the clamping groove is provided with two inner side walls, the two inner side walls are oppositely arranged, and the two inner side walls are respectively located on the left and right sides of the clamping groove, and the cam portion abuts against at least one of the inner side walls.

[0006] Among them, the line separating assembly further comprises a secondary bearing, the secondary bearing is sleeved outside the ring portion, and the rotating seat is sleeved outside the secondary bearing.

[0007] The shuttle seat is provided with a movable slot, a movable block is arranged in the movable slot, the rear end of the swing piece is provided with a rear insertion hole, the movable block is provided with a lower insertion hole, the upper end of the corresponding pin is inserted into the rear insertion hole, and the lower end of the pin is inserted into the lower insertion hole.

[0008] The shuttle seat is provided with a movable slot, a movable block is arranged in the movable slot, the rear end of the swing piece is provided with a rear insertion hole, the movable block is provided with a lower insertion hole, the upper end of the corresponding pin is inserted into the rear insertion hole, and the lower end of the pin is inserted into the lower insertion hole.

[0009] The shuttle seat is fixed to the top of the stand column, the driving shaft is arranged in the stand column, the side surface of the stand column is fixed with a feeding rod for conveying the sewing thread, the top of the feeding rod is connected with a feeding plate, and the top of the feeding plate is provided with a needle hole.

[0010] The side surface of the shuttle seat is fixed with a needle plate, the needle plate is provided with a connecting groove, and the connecting position of the feeding rod and the feeding plate is clamped in the connecting groove.

[0011] The input assembly comprises an input shaft, a driving bevel gear fixed to the end of the input shaft and a driven bevel gear fixed to the lower end of the driving shaft, and the driving bevel gear and the driven bevel gear are engaged.

[0012] The front end of the swing piece is provided with a front insertion hole, the front part of the rotating seat is provided with an upper insertion hole, the lower end of the corresponding pin is inserted into the front insertion hole, and the upper end of the pin is inserted into the upper insertion hole.

[0013] The high stand column type sewing machine comprises the thread separating mechanism for realizing swing with the center of the rotating shuttle and further comprises a sewing machine head arranged above the thread separating mechanism for realizing swing with the center of the rotating shuttle and used for driving the movement of the sewing needle.

[0014] The application has the beneficial effects that the rear end of the swing piece is connected through the pin, the thread separating hook is arranged at the front end of the rotating seat, the driving shaft drives the rotation of the annular part, the rotation of the cam part intermittently presses the two inner sides of the clamping groove to drive the swing piece to reciprocatingly swing relative to the pin connected to the rear end of the swing piece, the pin connected to the front end of the swing piece is driven to reciprocatingly swing, the rotating seat is driven to reciprocatingly swing along the circumferential direction, the thread separating hook reciprocatingly swings along the circumferential direction with the rotating seat, and the thread separating function is realized through the intermittent abutment between the thread separating hook and the rotating shuttle assembly.

[0015] The high column type sewing machine of the present application has a smaller cross-sectional area of the column than the prior art, thereby meeting the sewing requirements of smaller shoes or bags with smaller openings. For example, the prior art patent application CN201920008768, a computer roller sewing machine column, achieves thread separation control by driving the cow horn to move linearly along the radial direction, but since the cow horn has displacement in the radial direction, the outer diameter of the column is still larger than the sum of the outer diameter of the shuttle body and the thickness of the cow horn. Moreover, the prior art uses double shaft driving of the shuttle seat and the output shaft, which further increases the cross-sectional area of the column and cannot minimize the cross-sectional area of the column.

[0016] The high column type sewing machine of the present application uses the center of the shuttle to realize the swing thread separation mechanism, the driving shaft drives the cam portion to rotate and intermittently press the two inner sides of the clamping groove to drive the swing piece to swing and drive the rotating seat to reciprocatingly swing along the circumferential direction, thereby driving the thread separation hook to reciprocatingly swing along the circumferential direction and intermittently abutting against the shuttle assembly to realize the thread separation function. During the process of the rotating seat driving the thread separation hook to swing, only the rotation motion is performed. The rotating seat, as the largest component of the thread separation mechanism in outer diameter, does not produce displacement in the radial direction. The outer diameter of the column is the sum of the outer diameter of the shuttle body and the thickness of the thread separation hook, thereby ensuring that the outer diameter of the entire thread separation mechanism is kept to a minimum, thereby meeting the sewing requirements of smaller shoes or bags with smaller openings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the high column type sewing machine of the present application;

[0018] Figure 2 is a perspective view of the thread separation mechanism of the present application;

[0019] Figure 3 is an exploded structural schematic view of the thread separation mechanism of the present application;

[0020] Figure 4 is a structural schematic view of the shuttle assembly in embodiment 1 of the present application;

[0021] Figure 5 is a structural schematic view of the shuttle assembly in embodiment 2 of the present application;

[0022] Figure 6 is a sectional view of the thread separation mechanism of the present application along the A-A direction.

[0023] The drawings are marked as: shuttle seat 1, drive shaft 2, rotating shuttle body 3, shuttle bed inner bowl 4, abutment 5, main bearing 6, rotating seat 7, line hook 8, swing piece 9, ring part 10, cam part 11, rotating shaft 12, inner side wall 13, auxiliary bearing 14, movable slot 15, movable block 16, stand 17, feeding rod 18, feeding plate 19, needle hole 20, needle plate 21, connecting slot 22, input shaft 23, front plug hole 24, rear plug hole 25, upper plug hole 26, lower plug hole 27, rotating shuttle cover 28, sewing machine head 29, mounting seat 30, operation table 31. DETAILED DESCRIPTION

[0024] For the convenience of those skilled in the art, the following embodiments and drawings are combined to facilitate understanding. Figures 1-6 Further description of the present application, the content mentioned in the embodiment is not limited to the present application.

[0025] Example 1

[0026] The line separating mechanism with the rotating shuttle center to realize the swing includes a shuttle seat 1, a drive shaft 2, a rotating shuttle assembly and a main bearing 6, the main bearing 6 is arranged in the shuttle seat 1, the upper end of the drive shaft 2 is fixedly connected with the rotating shuttle assembly after penetrating through the main bearing 6, and the line separating assembly further includes a rotating seat 7, a line hook 8 fixed to the front end of the rotating seat 7, a swing driving piece and a swing piece 9 arranged below the rotating seat 7, the swing driving piece includes a ring part 10 and a cam part 11, the lower end of the rotating shuttle assembly is provided with a rotating shaft 12, the ring part 10 is sleeved outside the rotating shaft 12 and is fixedly connected with the rotating shaft 12, the swing piece 9 is provided with a clamping groove, the cam part 11 is arranged in the clamping groove, the cam part 11 abuts against the inner side wall 13 of the clamping groove, the rear end of the swing piece 9 is connected with the shuttle seat 1 through a pin, and the front end of the swing piece 9 is connected with the rotating seat 7 through a pin.

[0027] Among them, the clamping groove is provided with two inner side walls 13, the two inner side walls 13 are oppositely arranged, and the two inner side walls 13 are respectively located on the left and right sides of the clamping groove, and the cam part 11 abuts against at least one of the inner side walls 13.

[0028] Among them, the line separating assembly further includes an auxiliary bearing 14, the auxiliary bearing 14 is sleeved outside the ring part 10, and the rotating seat 7 is sleeved outside the auxiliary bearing 14.

[0029] Among them, the shuttle seat 1 is provided with a movable slot 15, the movable slot 15 is provided with a movable block 16, the rear end of the swing piece 9 is provided with a rear plug hole 25, the movable block is provided with a lower plug hole 27, the upper end of the corresponding pin is inserted into the rear plug hole 25, the lower end of the pin is inserted into the lower plug hole 27, the side of the movable slot 15 is provided with an adjusting hole, the adjusting hole is provided with an adjusting screw, and the adjusting screw is used to tightly or loosen the movable block 16.

[0030] Specifically, the position of the pin connected to the rear end of the swing member 9 can be adjusted by adjusting the position of the movable block 16 in the movable slot 15, so as to adjust the swing amplitude of the swing member 9, thereby achieving the swing amplitude adjustment of the thread hook 8.

[0031] The shuttle assembly comprises a shuttle body 3 and an inner bowl 4 arranged in the shuttle body 3, and the inner bowl 4 is provided with an abutting portion 5 which is in intermittent contact with the thread hook 8.

[0032] The shuttle seat 1 is fixed to the top of a stand 17, the driving shaft 2 is arranged in the stand 17, the side surface of the stand 17 is fixed with a feeding rod 18 for feeding the suture, the top of the feeding rod 18 is connected with a feeding plate 19, and the top of the feeding plate 19 is provided with a needle hole 20. Specifically, the feeding rod 18 is made of thickened copper rod, which has high support strength, good toughness and good wear resistance, and can well support the feeding plate 19 and the needle plate 21.

[0033] The inner part of the feeding rod 18 is provided with a main feeding channel for the suture, the feeding plate 19 is provided with a secondary feeding channel, and the main feeding channel and the secondary feeding channel are in communication. The secondary feeding channel is in communication with the inner space of the needle plate 21 and the needle hole 20.

[0034] The side surface of the shuttle seat 1 is fixed with a needle plate 21, the needle plate 21 is provided with a connecting groove 22, and the connecting part of the feeding rod 18 and the feeding plate 19 is clamped in the connecting groove 22.

[0035] The input assembly comprises an input shaft 23, a driving bevel gear fixed to the end of the input shaft 23, and a driven bevel gear fixed to the lower end of the driving shaft 2, and the driving bevel gear and the driven bevel gear are in engagement.

[0036] The front end of the swing member 9 is provided with a front plug-in hole 24, the front part of the rotating seat 7 is provided with an upper plug-in hole 26, the lower end of the corresponding pin is inserted into the front plug-in hole 24, and the upper end of the pin is inserted into the upper plug-in hole 26.

[0037] Specifically, the upper plug-in hole 26 is a movable hole, the width of the upper plug-in hole 26 is equivalent to the diameter of the pin, and the length of the upper plug-in hole 26 is greater than the diameter of the pin. During the swing of the swing member 9, the pin can slide forward and backward relative to the upper plug-in hole 26.

[0038] The input assembly comprises an input shaft 23, a driving bevel gear fixed to the end of the input shaft 23, and a driven bevel gear fixed to the lower end of the driving shaft 2, and the driving bevel gear and the driven bevel gear are in engagement.

[0039] The high column 17 type sewing machine comprises the thread separating mechanism for realizing the swing of the rotating hook center as described above, and further comprises a sewing machine head 29 arranged above the thread separating mechanism for realizing the swing of the rotating hook center and used for driving the sewing needle to move.

[0040] The lower end of the column 17 is connected with a mounting seat 30, and the high column 17 type sewing machine further comprises an operation table 31, and the column 17 is fixed to the operation table 31 through the mounting seat 30.

[0041] Specifically, the driving shaft 2 rotates to drive the annular part 10 to rotate, so as to drive the cam part 11 to rotate. The thickest end of the cam part 11 presses the right inner wall surface of the clamping groove, the swing piece 9 swings to the right, so as to drive the thread separating hook 8 to swing to the right along the circumferential direction. The thread separating hook 8 abuts against the bobbin case 4, and the right gap is formed between the bobbin case 4 and the needle plate 21. The sewing thread passes through the gap. The driving shaft 2 continues to rotate, the thickest end of the cam part 11 presses the left inner wall surface of the clamping groove, the swing piece 9 swings to the left, the gap is formed between the thread separating hook 8 and the bobbin case 4, the left gap is formed between the bobbin case 4 and the needle plate 21, the thread separating hook 8 blocks the sewing thread, the purpose of separating the thread is achieved, and the sewing thread work can be normally carried out.

[0042] Embodiment 2

[0043] The difference between the embodiment and the embodiment 1 is that the structures of the rotating hook main body 3 and the bobbin case 4 are different from those of the embodiment 1, as shown in the following table. Figure 5

[0044] The above embodiments are the preferred implementation schemes of the present application. In addition to the above, the present application can also be implemented in other ways. Any obvious replacement without departing from the concept of the present application is within the protection scope of the present application.​

Claims

1. A wire separating mechanism that oscillates around a central shuttle, comprising a shuttle base, a drive shaft, a shuttle assembly, and a main bearing, wherein the main bearing is disposed within the shuttle base, and the upper end of the drive shaft passes through the main bearing and is fixedly connected to the shuttle assembly, characterized in that: The line distribution assembly further comprises a rotating seat, a line distribution hook fixed to the front end of the rotating seat, a swing driving member and a swing member arranged below the rotating seat, the swing driving member comprises a ring portion and a cam portion, the lower end of the rotating hook assembly is provided with a rotating shaft, the ring portion is sleeved outside the rotating shaft and is fixedly connected with the rotating shaft, the swing member is provided with a clamping groove, the cam portion is arranged in the clamping groove, and the cam portion abuts against the inner side wall of the clamping groove, the rear end of the swing member is connected with the hook seat through a pin, and the front end of the swing member is connected with the rotating seat through a pin.

2. The parting mechanism that realizes the oscillation with the center of the rotating shuttle according to claim 1, characterized in that: The clamping groove is provided with two inner side walls arranged oppositely and located on the left and right sides of the clamping groove respectively, and the cam portion abuts against at least one of the inner side walls.

3. The part line mechanism that swings with the center of the rotating shuttle according to claim 1, characterized in that: The line distribution assembly further comprises a secondary bearing, and the secondary bearing is sleeved outside the ring portion.

4. The part line mechanism that swings with the center of the rotating shuttle according to claim 1, characterized in that: The hook seat is provided with a movable groove, the movable groove is provided with a movable block, the rear end of the swing member is provided with a rear insertion hole, the movable block is provided with a lower insertion hole, the upper end of the corresponding pin is inserted into the rear insertion hole, the lower end of the pin is inserted into the lower insertion hole, the side of the movable groove is provided with an adjusting hole, the adjusting hole is provided with an adjusting screw, and the adjusting screw is used for tightly abutting or loosening the movable block.

5. The part line mechanism that swings with the center of the rotating shuttle according to claim 1, characterized in that: The rotating hook assembly comprises a rotating hook body and a hook bed inner bowl arranged in the rotating hook body, and the hook bed inner bowl is provided with an abutting portion which intermittently contacts the line distribution hook.

6. The part line mechanism that swings with the center of the rotating shuttle according to claim 1, characterized in that: The hook seat is fixed to the top of a stand, the driving shaft is arranged in the stand, the side of the stand is fixed with a feeding rod for conveying the suture, the top of the feeding rod is connected with a feeding plate, and the top of the feeding plate is provided with a needle hole.

7. The parting mechanism that realizes the oscillation with the center of the rotating shuttle according to claim 6, characterized in that: The side of the hook seat is fixed with a needle plate, the needle plate is provided with a connecting groove, and the connecting portion of the feeding rod and the feeding plate is clamped in the connecting groove.

8. The part line mechanism that swings with the center of the rotating shuttle according to claim 1, characterized in that: The input assembly comprises an input shaft, a driving bevel gear fixed to the end of the input shaft and a driven bevel gear fixed to the lower end of the driving shaft, and the driving bevel gear and the driven bevel gear are engaged.

9. The part line mechanism that swings with the center of the rotating shuttle according to claim 1, characterized in that: The front end of the swing member is provided with a front insertion hole, the front part of the rotating seat is provided with an upper insertion hole, the lower end of the corresponding pin is inserted into the front insertion hole, and the upper end of the pin is inserted into the upper insertion hole.

10. A high-post sewing machine characterized by: The line distribution mechanism with the rotating hook center for swing further comprises a sewing machine head arranged above the line distribution mechanism with the rotating hook center for swing and used for driving the movement of the sewing needle.

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