CN110670258B - Automatic shuttle changing device of sewing machine - Google Patents
Automatic shuttle changing device of sewing machine Download PDFInfo
- Publication number
- CN110670258B CN110670258B CN201911067327.XA CN201911067327A CN110670258B CN 110670258 B CN110670258 B CN 110670258B CN 201911067327 A CN201911067327 A CN 201911067327A CN 110670258 B CN110670258 B CN 110670258B
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- Prior art keywords
- clamping mechanism
- changing device
- shuttle changing
- automatic shuttle
- lifting
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
- D05B59/04—Devices for changing the bobbin
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides an automatic shuttle changing device of a sewing machine, which comprises a clamping mechanism for clamping a bobbin case, a storage part provided with a plurality of bobbins full of bottom threads and the bobbin case, a conveying mechanism for realizing the reciprocating movement of the clamping mechanism between a rotating shuttle and the storage part, and a reversing mechanism for changing the orientation of the clamping mechanism, wherein the reversing mechanism drives the clamping mechanism to rotate around the vertical direction. The invention has the advantages that: by using the reversing mechanism, the bobbin case can be grabbed and replaced only by horizontally moving and rotating the clamping mechanism, the moving process is more stable, the bobbin cannot fall out due to the overlarge swing amplitude of the clamping mechanism, and the reliability is higher.
Description
Technical Field
The invention relates to the technical field of sewing machines, in particular to an automatic shuttle changing device of a sewing machine.
Background
With the intelligent development of sewing machines, automatic shuttle changing devices are gradually emerging. The automatic bobbin case replacing device used on the existing sewing machine has some problems, such as: the shuttle changing process is unstable, and the lock cylinder is easy to fall out; the shuttle plate is inconvenient to replace, and people are required to drill below the bedplate for operation, and the like.
Disclosure of Invention
In view of the above-mentioned drawbacks, it is an object of the present invention to provide an automatic shuttle changing device for a sewing machine which is more convenient and reliable.
The invention provides an automatic shuttle changing device of a sewing machine, which comprises a clamping mechanism for clamping a bobbin case, a storage part provided with a plurality of bobbins full of bottom threads and the bobbin case, a conveying mechanism for realizing the reciprocating movement of the clamping mechanism between a rotating shuttle and the storage part, and a reversing mechanism for changing the orientation of the clamping mechanism, wherein the reversing mechanism drives the clamping mechanism to rotate around the vertical direction.
Preferably, the reversing mechanism is a gear arranged at the bottom of the clamping mechanism and a rack arranged in the moving stroke of the clamping mechanism, or is a rotary driving device connected with the clamping mechanism.
Preferably, the rotation driving device is a rotating motor or a swing cylinder.
Preferably, the reserve part comprises a polygonal column and a rotary driving device for driving the polygonal column to rotate, wherein each side surface of the polygonal column is provided with a mounting position, and the mounting positions are all located at the same height.
Preferably, the reserve part further comprises a centering rod and a centering disc sleeved on an output shaft of the rotary driving device, the centering disc is provided with a plurality of arc-shaped limiting grooves along the circumferential direction, and the centering rod is driven by the driving device fixedly installed and matched with the limiting grooves.
Preferably, the automatic shuttle changing device is arranged below a table of the sewing machine.
Preferably, the platen has an opening formed therein directly above the reserve.
Preferably, a lifting mechanism is further arranged on the storage part.
Preferably, the lifting mechanism includes a lifting guide rail disposed at an end of the conveying mechanism, a lifting slider disposed on the storage portion, and a linear driving device fixedly mounted below the storage portion, an output shaft of the linear driving device is connected to the storage portion, and the lifting guide rail and the lifting slider are slidably connected to each other.
Preferably, the lifting mechanism includes a plurality of linear driving devices provided at a bottom of the carrying mechanism.
The invention has the advantages that: by using the reversing mechanism, the bobbin case can be grabbed and replaced only by horizontally moving and rotating the clamping mechanism, so that the moving process is more stable, the bobbin cannot fall out due to overlarge swing amplitude of the clamping mechanism, and the reliability is higher; the storage part provided with the shuttle peg and the shuttle peg sleeve is arranged in front of the machine table board, is closer to an operator and is convenient to replace.
Drawings
FIG. 1 is a schematic view showing the construction of an automatic shuttle changing device of a sewing machine according to the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a schematic view of the reservoir;
FIG. 4 is a perspective view of a sewing machine equipped with an automatic shuttle changing device according to the embodiment;
FIG. 5 is a schematic structural diagram of the first embodiment;
FIG. 6 is a perspective view of a sewing machine equipped with the automatic shuttle changing device according to the second embodiment;
fig. 7 is a schematic structural diagram of the second embodiment.
Element number description:
1 clamping mechanism
11 fixed gripper
12 movable gripping finger
13 drive device
131 output shaft
2 reversing mechanism
21 gear
22 rack
23 connecting rod
3 reserve part
31 mounting position
32 rotation driving device
33 centering rod
34 centering disk
341 spacing groove
35 connecting plate
36 lifting slide block
4 conveying mechanism
41 slider
42 linear guide rail
43 synchronous wheel
44 synchronous belt
45 lifting guide rail
5 rotating shuttle
6 table board
61 opening
7 machine frame
71 support
72 support
8 lifting mechanism
81 linear driving device
811 output shaft
82 mounting base
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified. Meanwhile, a side where the reserve part 3 is located is defined as a front direction, and a side where the rotary hook 5 is located is defined as a rear direction, that is, the reserve part 3 is located in front of the rotary hook 5.
As shown in fig. 1 and 2, the present invention provides an automatic shuttle changing device of a sewing machine, which comprises a clamping mechanism 1 for clamping a bobbin case (not shown), a storage part 3 provided with a plurality of bobbins full of bobbin thread and bobbin cases, and a conveying mechanism 4 for realizing the reciprocating movement of the clamping mechanism 1 between a rotating shuttle 5 and the storage part 3, and further comprises a reversing mechanism 2 for changing the orientation of the clamping mechanism 1, wherein the reversing mechanism 2 can drive the clamping mechanism 1 to rotate in a vertical direction because the rotating shuttle 5 and the storage part 3 are respectively positioned at two ends of the conveying mechanism 4, so that the bobbin case clamped by the clamping mechanism 1 is changed from facing the rotating shuttle 5 to the storage part 3, or conversely, the bobbin case clamped by the clamping mechanism 1 is changed from facing the storage part 3 to facing the rotating shuttle 5.
The reversing mechanism 2 may be a rotation driving device connected to the clamping mechanism 1, such as a rotating motor or a swing cylinder, and the rotation driving device is disposed at the bottom of the clamping mechanism 1 or is in transmission connection with the clamping mechanism 1 through a gear or a synchronous belt, so that the clamping mechanism 1 rotates around the vertical direction. The reversing mechanism 2, which may be as in one embodiment of the present invention, includes a gear 21 disposed at the bottom of the gripping mechanism 1 and a rack 22 disposed in the moving stroke of the gripping mechanism 1, the rack 22 being parallel to the moving direction of the gripping mechanism 1 and cooperating with the gear 21. When the clamping mechanism 1 passes through the rack 22 under the driving of the conveying mechanism 4, the gear 21 and the rack 22 are in meshed transmission during the period, and the clamping mechanism 1 is safely, stably and reliably driven to rotate 180 degrees around the vertical direction. Therefore, in the working process of the clamping mechanism 1, the clamping mechanism 1 only needs to rotate on the horizontal plane and cannot swing greatly, and the shuttle peg is not easy to fall out of the shuttle peg sleeve.
In a specific implementation, the conveying mechanism 4 is a linear displacement device, such as a lead screw or a timing belt. The invention adopts two synchronous wheels 43, the two synchronous wheels 43 are in transmission connection by a synchronous belt 44, and the clamping mechanism 1 is connected with the synchronous belt 44 and moves synchronously with the synchronous belt 44. In order to ensure the accuracy of the linear motion, the conveying mechanism 4 further comprises a linear guide rail 42 arranged above the synchronous belt 44, a sliding block 41 is arranged at the bottom of the clamping mechanism 1, and the sliding block 41 slides along the linear guide rail 42 and is fixedly connected with the synchronous belt 44. The clamping mechanism 1 comprises a fixed palm 11 and a movable finger 12, the movable finger 12 is connected with a driving device 13, and the driving device 13 can adopt a linear motor and the like to drive the movable finger 12 to open and close relative to the fixed palm 11 so as to complete the clamping action.
As shown in fig. 3, the storage part 3 includes a polygon prism and a rotation driving device 32 for driving the polygon prism to rotate around the axis, each side of the polygon prism is provided with a mounting position 31 for hanging the bobbin case, and the mounting positions 31 are all located at the same height, so as to facilitate the positioning and clamping of the clamping mechanism 1. Of course, one skilled in the art may use a cylinder instead of a polygon prism as desired. In order to improve the grabbing success rate when the gripper mechanism 1 grabs the bobbin case, the position of the polygon prism needs to be fixed, so the storage part 3 further comprises a centering rod 33, a driving device for driving the centering rod 33 to move and a centering disc 34 sleeved on an output shaft of the rotation driving device 32, the centering disc 34 is provided with a plurality of arc-shaped limiting grooves 341 along the circumferential direction, the end part of the centering rod 33 is matched with the limiting grooves 341, and can be extruded into the limiting grooves 341 under the driving of driving devices such as an air cylinder, an electromagnet or a motor, etc., so as to precisely rotate the rotation angle of the driving device 32, thereby realizing centering.
In operation, after the gripper 1 has grasped the bobbin case in the rotating shuttle 5, it moves forward along the linear guide 42 under the drive of the timing belt 44, and in the moving process of the gripper 1, the gear 21 at the bottom engages with the fixedly installed rack 22 for transmission, so that the gripper 1 changes from the rear direction toward the rotating shuttle 5 to the front direction toward the storage part 3, at this time, the gripper 1 continues to move forward until the gripper 1 can place the bobbin case on one of the installation positions 31 in the storage part 3. Then, the rotating driving device 32 drives the polygon prism to rotate for an angle, the bobbin case wound with the bottom thread is rotated to face the clamping mechanism 1, then the clamping mechanism 1 grabs the bobbin case wound with the bottom thread and moves backwards along the linear guide rail 42, after passing through the reversing mechanism 2, the clamping mechanism 1 is changed to face the back of the rotating shuttle 5 again, and at the moment, the clamping mechanism 1 continues to move backwards until the bobbin case is placed into the rotating shuttle 5, and one shuttle changing movement is completed.
As shown in fig. 4, the automatic shuttle changing device of the present invention is provided below a table 6 of a sewing machine, and for the operator to stand in front of the sewing machine to take out the reserve part 3, an opening 61 is opened in the table 6 directly above the reserve part 3, and the operator can take out the reserve part 3 from the opening 61. When the storage part 3 is not required to be taken out, the opening 61 can be covered by a cover plate (not shown) to prevent dust and sundries from entering the inside of the sewing machine. After setting up like this, operating personnel need not to drill to platen 6 below and change storage portion 3, and the operation is more convenient.
The present invention can also be applied to a conventional sewing machine without the opening 61, and the storage part 3 and the table 6 need to be kept at a certain distance, which is convenient for an operator to operate. In this regard, the present invention has the following two application examples:
example one
As shown in fig. 4 and 5, the automatic shuttle changer is fixedly mounted on the frame 7 by a bracket 71, and the bobbin case in the rotary shuttle 5 and the bobbin case in the reserve part 3 are located at the same height and both are closely adjacent to the lower surface of the platen 6. The stock unit 3 is further provided with an elevating mechanism 8, and the elevating mechanism 8 includes an elevating guide rail 45 provided at the tip of the conveyance mechanism 4, an elevating slider 36 provided on the stock unit 3, and a linear drive device 81 fixedly attached to the lower side of the stock unit 3 via an attachment base 82. Wherein, the lifting slider 36 is installed below the polygonal column through the connecting plate 35 and is connected with the lifting guide rail 45 in a sliding manner. The linear driving device 81 may be a linear motor or an air cylinder, and the output shaft thereof is connected to the bottom of the storage portion 3, so as to drive the storage portion 3 to perform a lifting motion relative to the conveying mechanism 4, and an operator can conveniently replace the storage portion 3 from below the platen 6.
Example two
As shown in fig. 6 and 7, in the second embodiment, the automatic shuttle changing device is fixedly mounted on the frame 7 through a bracket 71, the height of the bobbin case in the rotating shuttle 5 is greater than that of the bobbin case in the reserve part 3, that is, the rotating shuttle 5 is closer to the lower surface of the platen 6, and the reserve part 3 is fixed below the conveying mechanism 4 through a bracket 72, so that the reserve part 3 and the platen 6 have a sufficient distance for an operator to take out the reserve part 3. On the basis, the conveying mechanism 4 is also provided with a lifting mechanism 8, and the lifting mechanism 8 drives the conveying mechanism 4 to perform lifting movement. The rack 22 is fixed between the linear guide 42 and the timing belt 44 by the connecting rod 23, and can move up and down simultaneously with the conveying mechanism 4, and is kept in the moving stroke of the clamping mechanism 1. The lifting mechanism 8 comprises a plurality of linear driving devices 81 arranged at the bottom of the conveying mechanism 4, the linear driving devices 81 can adopt devices such as linear motors or air cylinders and the like, and are fixedly arranged on the bracket 72, and an output shaft is connected with the conveying mechanism 4, so that the whole conveying mechanism 4, the reversing mechanism 2 and the clamping mechanism 1 can be driven to move upwards or downwards. The clamping mechanism 1 moves upwards under the driving of the lifting mechanism 8 while moving backwards, so that the clamping mechanism 1 can grab the bobbin case in the rotating shuttle 5, then the clamping mechanism 1 moves downwards under the driving of the lifting mechanism 8 while moving forwards, and then the bobbin case is placed on one installation position in the storage part 3, then the bobbin case wound with the bottom thread is grabbed, and the bobbin case is placed in the rotating shuttle 5 again to complete one shuttle changing movement.
In conclusion, the invention has the advantages that: the bobbin case can be grabbed and replaced only by horizontally moving and rotating the clamping mechanism, so that the moving process is more stable, the bobbin cannot fall out due to overlarge swinging amplitude of the clamping mechanism, and the reliability is higher; the storage part provided with the shuttle peg and the shuttle peg sleeve is arranged in front of the machine table board, is closer to an operator and is convenient to replace.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. An automatic shuttle changing device of a sewing machine comprises a clamping mechanism (1) for clamping a bobbin case, a storage part (3) provided with a plurality of bobbins full of bottom threads and the bobbin case, and a conveying mechanism (4) for realizing the reciprocating movement of the clamping mechanism (1) between a rotating shuttle (5) and the storage part (3), and is characterized by further comprising a reversing mechanism (2) for changing the orientation of the clamping mechanism (1), wherein the reversing mechanism (2) drives the clamping mechanism (1) to rotate around the vertical direction; the reversing mechanism (2) is a gear (21) arranged at the bottom of the clamping mechanism (1), a rack (22) arranged in the moving stroke of the clamping mechanism (1) or a rotary driving device connected with the clamping mechanism (1), and in the working process of the clamping mechanism (1), the clamping mechanism (1) only needs to rotate on a horizontal plane and cannot swing greatly, and the bobbin cannot fall out of the bobbin case easily.
2. The automatic shuttle changing device according to claim 1, wherein the rotary drive device is a rotary motor or a swing cylinder.
3. The automatic shuttle changing device according to claim 1, wherein said reserve (3) comprises a polygonal column and a rotary driving device (32) for driving said polygonal column in rotation, one mounting location (31) being provided on each side of said polygonal column, a plurality of said mounting locations (31) being located at the same height.
4. The automatic shuttle changing device according to claim 3, wherein the reserve part (3) further comprises a centering rod (33) and a centering disc (34) sleeved on the output shaft of the rotary driving device (32), the centering disc (34) is provided with a plurality of arc-shaped limiting grooves (341) along the circumferential direction, and the centering rod (33) is driven by the fixedly installed driving device and is matched with the limiting grooves (341).
5. The automatic shuttle changing device according to claim 1, characterized in that it is arranged below a bedplate (6) of a sewing machine.
6. The automatic shuttle changing device according to claim 5, characterized in that an opening (61) is opened in said platen (6) directly above said reserve (3).
7. The automatic shuttle changing device according to claim 5, characterized in that a lifting mechanism (8) is further provided on the reserve (3).
8. The automatic shuttle changing device according to claim 7, wherein the lifting mechanism (8) comprises a lifting guide rail (45) provided at an end of the carrying mechanism (4), a lifting slider (36) provided on the reserve part (3), and a linear driving device (81) fixedly installed below the reserve part (3), an output shaft of the linear driving device (81) is connected with the reserve part (3), and the lifting guide rail (45) and the lifting slider (36) are slidably connected.
9. The automatic shuttle changing device according to claim 7, characterized in that said lifting means (8) comprise a plurality of linear drives (81) arranged at the bottom of said handling means (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911067327.XA CN110670258B (en) | 2019-11-04 | 2019-11-04 | Automatic shuttle changing device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911067327.XA CN110670258B (en) | 2019-11-04 | 2019-11-04 | Automatic shuttle changing device of sewing machine |
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| Publication Number | Publication Date |
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| CN110670258A CN110670258A (en) | 2020-01-10 |
| CN110670258B true CN110670258B (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911067327.XA Active CN110670258B (en) | 2019-11-04 | 2019-11-04 | Automatic shuttle changing device of sewing machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113373606B (en) * | 2021-06-16 | 2022-07-22 | 浙江威比玛智能缝制科技有限公司 | Sewing equipment |
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| CN1140774A (en) * | 1995-01-18 | 1997-01-22 | 重机公司 | Bobbin exchanger |
| CN1265167A (en) * | 1997-10-06 | 2000-08-30 | 木下精密工业株式会社 | Bobbin use remote replacing appts. |
| JP2002346264A (en) * | 2001-03-21 | 2002-12-03 | Barudan Co Ltd | Bobbin change unit for sewing machine |
| CN101104988A (en) * | 2006-07-11 | 2008-01-16 | 东海工业缝纫机株式会社 | Bobbin changer apparatus for sewing machine |
| CN105088561A (en) * | 2015-09-14 | 2015-11-25 | 浙江中捷缝纫科技有限公司 | Bobbin case storing mechanism of automatic bobbin case replacing device |
| CN206545110U (en) * | 2017-01-12 | 2017-10-10 | 天津宝盈电脑机械有限公司 | A kind of special shuttle changing device |
| CN110373827A (en) * | 2019-07-13 | 2019-10-25 | 诸暨轻工时代机器人科技有限公司 | A kind of movable type automatic shuttle changing core apparatus and automatic shuttle changing core method |
| CN110373826A (en) * | 2019-07-13 | 2019-10-25 | 诸暨轻工时代机器人科技有限公司 | A kind of movable up-down automatic shuttle changing core apparatus and automatic shuttle changing core method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192374A (en) * | 1996-01-17 | 1997-07-29 | Juki Corp | Detecting device of mechanical device and device for detecting remaining amount of bobbin thread of sewing machine |
-
2019
- 2019-11-04 CN CN201911067327.XA patent/CN110670258B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140774A (en) * | 1995-01-18 | 1997-01-22 | 重机公司 | Bobbin exchanger |
| CN1265167A (en) * | 1997-10-06 | 2000-08-30 | 木下精密工业株式会社 | Bobbin use remote replacing appts. |
| JP2002346264A (en) * | 2001-03-21 | 2002-12-03 | Barudan Co Ltd | Bobbin change unit for sewing machine |
| CN101104988A (en) * | 2006-07-11 | 2008-01-16 | 东海工业缝纫机株式会社 | Bobbin changer apparatus for sewing machine |
| CN105088561A (en) * | 2015-09-14 | 2015-11-25 | 浙江中捷缝纫科技有限公司 | Bobbin case storing mechanism of automatic bobbin case replacing device |
| CN206545110U (en) * | 2017-01-12 | 2017-10-10 | 天津宝盈电脑机械有限公司 | A kind of special shuttle changing device |
| CN110373827A (en) * | 2019-07-13 | 2019-10-25 | 诸暨轻工时代机器人科技有限公司 | A kind of movable type automatic shuttle changing core apparatus and automatic shuttle changing core method |
| CN110373826A (en) * | 2019-07-13 | 2019-10-25 | 诸暨轻工时代机器人科技有限公司 | A kind of movable up-down automatic shuttle changing core apparatus and automatic shuttle changing core method |
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