CN203846267U - Rotating shuttle transmission connection structure of shoemaking sewing machine - Google Patents
Rotating shuttle transmission connection structure of shoemaking sewing machine Download PDFInfo
- Publication number
- CN203846267U CN203846267U CN201420168509.2U CN201420168509U CN203846267U CN 203846267 U CN203846267 U CN 203846267U CN 201420168509 U CN201420168509 U CN 201420168509U CN 203846267 U CN203846267 U CN 203846267U
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- Prior art keywords
- shuttle
- rotating shuttle
- race
- rotating
- driving shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000009958 sewing Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a rotating shuttle transmission connection structure of a shoemaking sewing machine. The rotating shuttle transmission connection structure is arranged on the shoemaking sewing machine special for shoemaking. A rotating shuttle comprises a shuttle race, a shuttle rack, a needle protecting plate and a moon ring, wherein a cavity with an open top is arranged on the shuttle race, the shuttle rack is rotatably embedded into the cavity of the shuttle race, the needle protecting plate and the moon ring are fixedly arranged at the bottom and on the periphery of the shuttle race respectively, a shuttle race connecting shaft is disposed at the bottom of the shuttle race, the shuttle race connecting shaft is connected with a rotating shuttle driving shaft of the sewing machine in an alignment mode, axially protruding clamp keys are arranged at the end of the shuttle race connecting shaft, key grooves which are matched with the clamp keys are formed in the end of the rotating shuttle driving shaft, the clamp keys are embedded into the key grooves, and an axial positioning mechanism is mounted between the shuttle race connecting shaft and the rotating shuttle driving shaft. According to the rotating shuttle transmission connection structure of the shoemaking sewing machine, the rotating shuttle is in driving connection with the rotating shuttle driving shaft through key connection, loosening and falling off are not prone to occur, connection reliability and driving efficiency are greatly increased, and thereby, normal work of the rotating shuttle can be reliably guaranteed.
Description
Technical field
The utility model relates to a kind of Sewing machines assembly structure, and in particular, it relates to a kind of shoemaking sewing machine rotating shuttle transmission connecting structure.
Background technology
Rotating shuttle is the important composition part of Sewing machines, on the lock-type chain stitch suture type Sewing machines the most generally using, mostly adopt rotating shuttle in the industries such as clothing shoemaking sewing, when work, catch on wire loop with the spur of rotating shuttle, expand wire loop simultaneously, and guide wire loop to form lock-type chain stitch around crossing shuttle frame.Rotating shuttle is connected to obtain rotary power with the rotating shuttle driving shaft on Sewing machines, between existing rotating shuttle and rotating shuttle driving shaft, how to be connected by screw fastening mode, connection reliability is lower, once screw loosening, rotating shuttle just there will be positioning, shake situation, and then causes faults such as producing outlet has some setbacks, wire jumper, broken string, and if screw connects and thoroughly lost efficacy, rotating shuttle comes off, and will cause even more serious consequence.In addition, screw repeatedly degree of tightness can make the sliding tooth of notch fluffing on head of screw, is difficult to dismounting.Publication number is that the utility model of CN201924166U discloses a kind of rotating shuttle for sewing machine on August 10th, 2011, comprise shuttle race, pressing plate, Suo Pi and shuttle frame, the top that described shuttle frame is arranged on shuttle race also and between shuttle race is rotationally connected, described pressing plate is fixed on the lateral wall of shuttle race, described shuttle skin and pressing plate are oppositely arranged and are fixed on the lateral wall of shuttle race, have the gap of shuttling back and forth for sewing machine thread between described shuttle skin and shuttle race.The utility model rotating shuttle for sewing machine forms by direct pouring, the more accurate and standard of the rotating shuttle structure that makes, and simple in structure, cost is lower, stable performance.But in this utility model, shuttle race is also to follow Sewing machines power transmission shaft to connect by sunk screw as mentioned above, has low, the flimsy defect of connection reliability.
Utility model content
Between existing rotating shuttle and rotating shuttle driving shaft, the mode reliability of screw fastening is lower, existence gets loose and then causes the hidden danger of the faults such as outlet has some setbacks, wire jumper, broken string, for addressing this problem, the utility model provides a kind of shoemaking sewing machine rotating shuttle transmission connecting structure that adopts more reliable connected mode between rotating shuttle and rotating shuttle driving shaft.
The technical solution of the utility model is: a kind of shoemaking sewing machine rotating shuttle transmission connecting structure, be located on the special shoemaking sewing machine of shoemaking, described rotating shuttle comprises shuttle race, shuttle frame, protect needle plate and Yue Quan, shuttle race is provided with the cavity of open-top, shuttle frame rotates and is embedded in shuttle race cavity, protecting needle plate and a month circle is fixedly arranged on respectively in shuttle race bottom and periphery, shuttle race bottom is provided with shuttle race connecting axle, shuttle race connecting axle is connected to the heart with the rotating shuttle driving shaft of Sewing machines, shuttle race connecting axle end is provided with axially outstanding card key, rotating shuttle driveshaft end is provided with the keyway with card key adaptation, card key is entrenched in keyway, between shuttle race connecting axle and rotating shuttle driving shaft, be also provided with axial positioning mechanism.Shuttle race connecting axle in the utility model and rotating shuttle driving shaft adopt key connected mode to realize transmission, when rotating shuttle rotates, axial positioning mechanism can make to keep relative axial position to fix between shuttle race connecting axle and rotating shuttle driving shaft, card key and keyway remain chimeric, connect with respect to existing screw fastening formula, bonding strength in the utility model and torque drive efficiency are higher, more can ensure reliably that rotating shuttle normally works.
As preferably, described axial positioning mechanism comprises the boss and at least two chucks that are articulated on rotating shuttle driving shaft that are fixedly arranged on shuttle race connecting axle, between chuck and rotating shuttle driving shaft, be provided with torsion spring, chuck end is articulated with a block, and block side is provided with the caulking groove with shuttle race connecting axle side face adaptation.In the time connecting shuttle race connecting axle and rotating shuttle driving shaft, by the caulking groove on block side and the laminating of shuttle race connecting axle side face, tighten up under torsion spring effect chuck end, block keeps fixing attitude and position chuck and shuttle race connecting axle to pushing up under clamping, stop bottom forms spacing to boss, stop shuttle race connecting axle to separate with rotating shuttle driving shaft vertically, thereby make shuttle race connecting axle and rotating shuttle driving shaft keep key to be connected.
As preferably, on rotating shuttle driving shaft, be installed with radially outstanding male part, chuck is hinged in male part.Male part is set can be raised chuck pivoting point, makes chuck folding to a greater degree, handled easily.
As preferably, Suo Jia center is provided with spring base, and spring base inside is provided with the inner chamber of open-top, in this inner chamber, is provided with spring, and spring free end is provided with a jacking block, and spring base port is hinged with a spanner pressing plate, spanner pressing plate top pressure side and described jacking block butt.Spring base is used for installing the bobbin case around bottom line, press owing to being subject to spring driven jacking block top, spanner pressing plate can be stopping to the angular range of 180 ° with rotating shuttle rotating shaft is in 90 °, when spanner pressing plate becomes 180 ° with rotating shuttle rotating shaft, bobbin case can be set on spring base by spanner pressing plate, then spanner pressing plate is pulled back with rotating shuttle rotating shaft in 90 °ly, spanner pressing plate is just pressed on bobbin case port bobbin case axial limiting.
The beneficial effects of the utility model are:
Improve be in transmission connection reliability and transmission efficiency between rotating shuttle and rotating shuttle driving shaft.The utility model is connected and is realized being in transmission connection of rotating shuttle and rotating shuttle driving shaft by key, is difficult for loose or dislocation, connects reliability and transmission efficiency and greatly improves, thereby guarantee that more reliably rotating shuttle normally works.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of structural representation when shuttle race connecting axle separates with rotating shuttle driving shaft in the utility model;
Fig. 3 is another kind of structural representation of the present utility model.
In figure, 1-shuttle race, 2-shuttle frame, 3-protects needle plate, 4-month circle, 5-spanner pressing plate, 6-month circle screw, 7-spring base, 8-spring, 9-protects needle plate screw, 10-shuttle race connecting axle, 11-card key, 12-rotating shuttle driving shaft, 13-keyway, 14-boss, 15-chuck, 16-block, 17-male part.
Detailed description of the invention
Below in conjunction with accompanying drawing specific embodiment, the utility model is described in further detail.
embodiment 1:
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of shoemaking sewing machine rotating shuttle transmission connecting structure, be located on the special shoemaking sewing machine of shoemaking, described rotating shuttle comprises shuttle race 1, shuttle frame 2, protect needle plate 3 and month circle 4, shuttle race 1 is provided with the cavity of open-top, shuttle frame 2 rotates and is embedded in shuttle race 1 cavity, protecting needle plate 3 and month circle 4 is fixed in shuttle race 1 bottom and periphery with a month circle screw 6 by protecting needle plate screw 9 respectively, shuttle race 1 bottom is provided with shuttle race connecting axle 10, shuttle race connecting axle 10 is connected to the heart with the rotating shuttle driving shaft 12 of Sewing machines, shuttle race connecting axle 10 ends are provided with three axial outstanding card keys 11, rotating shuttle driving shaft 12 ends are provided with three corresponding with card key 11 and adaptive keyways 13, the length of keyway 13 and card key 11 are equal in length, card key 11 is entrenched in keyway 13.Between shuttle race connecting axle 10 and rotating shuttle driving shaft 12, be also provided with axial positioning mechanism, this axial positioning mechanism comprises that the boss 14 that is fixedly arranged on shuttle race connecting axle 10 and two are articulated in the chuck 15 on rotating shuttle driving shaft 12 by pivot, boss 14 is slightly partial to shuttle race 1 direction place near being positioned at card key 11, curved and the cross section of chuck 15 takes the shape of the letter U, between chuck 15 and rotating shuttle driving shaft 12, be provided with torsion spring, this torsion spring set is on the pivot of chuck 15, chuck 15 ends are articulated with a rectangular-shaped block 16, block 16 sides are provided with the caulking groove with shuttle race connecting axle 10 side face adaptations, caulking groove cross section semicircular in shape.On rotating shuttle driving shaft 12, be installed with a pair of radially outstanding male part 17, two male part 17 positions relative, chuck 15 is hinged in male part 17.Shuttle frame 2 centers are provided with spring base 7, and spring base 7 inside are provided with the inner chamber of open-top, are provided with spring 8 in this inner chamber, and spring 8 free ends are provided with a jacking block, and spring base 7 ports are hinged with a spanner pressing plate 5, spanner pressing plate 5 top pressure sides and described jacking block butt.
While connecting shuttle race connecting axle and rotating shuttle driving shaft, the first grip pressure end of grip pressure chuck 15 firmly, chuck 15 is opened, now, block 16 can rotate, card key 11 on rotating shuttle driving shaft 12 embeds in the keyway 13 on rotating shuttle driving shaft 12, adjust block 16 attitudes by the caulking groove on block 16 sides and the 10 side face laminatings of shuttle race connecting axle, then let go, tighten up under torsion spring effect chuck 15 ends, block 16 keeps fixing attitude and position chuck 15 and shuttle race connecting axle 10 to pushing up under clamping, the caulking groove of two blocks 16 just encloses a cylindrical cavity, shuttle race connecting axle 10 runs through and mistake in this cylindrical cavity, now block 16 base plane are just fitted with boss 14 planes, therefore block 16 forms spacing to boss 14, stop shuttle race connecting axle to separate with rotating shuttle driving shaft vertically, thereby make shuttle race connecting axle and rotating shuttle driving shaft keep key to be connected, as needs are pulled down rotating shuttle, the grip pressure end of grip pressure chuck 15 opens chuck 15, now block 16 leaves shuttle race connecting axle 10, on shuttle race connecting axle 10 is axial, lose external force restriction, shuttle race connecting axle 10 just can pull forward, make card key 11 shift out keyway 13, whole rotating shuttle no longer includes external force constraint, can take off.
embodiment 2:
described axial positioning mechanism comprises that the boss 14 that is fixedly arranged on shuttle race connecting axle 10 and three are articulated in the chuck 15 on rotating shuttle driving shaft 12 by pivot, three chucks 15 are uniform around rotating shuttle driving shaft 12, on rotating shuttle driving shaft 12, be installed with three radially outstanding male part 17, three male part 17 become 120 ° of angles with respect to the axis of rotating shuttle driving shaft 12 each other, and the caulking groove cross section on block 16 sides is the fan-shaped of 120 °, central angle.All the other are with embodiment 1.
Claims (4)
1. a shoemaking sewing machine rotating shuttle transmission connecting structure, be located on the special shoemaking sewing machine of shoemaking, described rotating shuttle comprises shuttle race (1), shuttle frame (2), protect needle plate (3) He Yuequan (4), shuttle race (1) is provided with the cavity of open-top, shuttle frame (2) rotates and is embedded in shuttle race (1) cavity, protecting needle plate (3) He Yuequan (4) is fixedly arranged on respectively in shuttle race (1) bottom and periphery, shuttle race (1) bottom is provided with shuttle race connecting axle (10), shuttle race connecting axle (10) is connected to the heart with the rotating shuttle driving shaft (12) of Sewing machines, it is characterized in that shuttle race connecting axle (10) end is provided with axially outstanding card key (11), rotating shuttle driving shaft (12) end is provided with the keyway (13) adaptive with card key (11), card key (11) is entrenched in keyway (13), between shuttle race connecting axle (10) and rotating shuttle driving shaft (12), be also provided with axial positioning mechanism.
2. shoemaking sewing machine rotating shuttle transmission connecting structure according to claim 1, it is characterized in that described axial positioning mechanism comprises boss (14) and at least two chucks (15) that are articulated on rotating shuttle driving shaft (12) that are fixedly arranged on shuttle race connecting axle (10), between chuck (15) and rotating shuttle driving shaft (12), be provided with torsion spring, chuck (15) end is articulated with a block (16), and block (16) side is provided with the caulking groove with shuttle race connecting axle (10) side face adaptation.
3. shoemaking sewing machine rotating shuttle transmission connecting structure according to claim 2, is characterized in that being installed with radially outstanding male part (17) on rotating shuttle driving shaft (12), and chuck (15) is hinged in male part (17).
4. according to the shoemaking sewing machine rotating shuttle transmission connecting structure described in claim 1 or 2 or 3, it is characterized in that shuttle frame (2) center is provided with spring base (7), spring base (7) inside is provided with the inner chamber of open-top, in this inner chamber, be provided with spring (8), spring (8) free end is provided with a jacking block, spring base (7) port is hinged with a spanner pressing plate (5), spanner pressing plate (5) top pressure side and described jacking block butt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168509.2U CN203846267U (en) | 2014-04-09 | 2014-04-09 | Rotating shuttle transmission connection structure of shoemaking sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168509.2U CN203846267U (en) | 2014-04-09 | 2014-04-09 | Rotating shuttle transmission connection structure of shoemaking sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203846267U true CN203846267U (en) | 2014-09-24 |
Family
ID=51559304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420168509.2U Expired - Lifetime CN203846267U (en) | 2014-04-09 | 2014-04-09 | Rotating shuttle transmission connection structure of shoemaking sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203846267U (en) |
-
2014
- 2014-04-09 CN CN201420168509.2U patent/CN203846267U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |