CN203846263U - Vertical rotating hook - Google Patents
Vertical rotating hook Download PDFInfo
- Publication number
- CN203846263U CN203846263U CN201420167569.2U CN201420167569U CN203846263U CN 203846263 U CN203846263 U CN 203846263U CN 201420167569 U CN201420167569 U CN 201420167569U CN 203846263 U CN203846263 U CN 203846263U
- Authority
- CN
- China
- Prior art keywords
- shuttle
- shuttle race
- hook
- circular arc
- friction plate
- Prior art date
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000004020 conductor Substances 0.000 claims description 18
- 239000010425 asbestos Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 229910052895 riebeckite Inorganic materials 0.000 claims description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 10
- 239000012634 fragment Substances 0.000 claims description 2
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000005188 flotation Methods 0.000 description 6
- 238000009958 sewing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model discloses a vertical rotating hook. The vertical rotating hook aims at overcoming the deficiency that rotating hooks in the prior art are prone to thread jamming and thread floating. The vertical rotating hook comprises a hook core, a hook core case, a hook rack and a hook base. A fixing loop sleeves a rotating shaft, the side surface of the fixing loop is provided with a section of loop friction strip extending in the circumferential direction of the fixing loop; a thread guide piece is slidingly connected with a shifting fork, and the shifting fork is fixedly connected with an arc friction piece a concentric with the hook base; the inner side of the tail end of a moon-shape slip is slidingly connected with a triangular slider, and the slider is fixedly connected with an arc friction piece b concentric with the hook base; the side surface of the hook base is rotatably connected with a transmission shaft extending in the axial direction of the hook base, one end of the transmission shaft extends to the side surface of the fixing loop and is provided with a friction wheel b, and the other end of the transmission shaft is provided with a friction wheel a. The vertical rotating hook has the advantages of effectively reducing the occurrence of thread jamming, effectively avoiding the problem of thread floating, being stable in operation, improving the product quality and the like.
Description
Technical field
The utility model relates to a kind of accessaries of sewing machine, relates in particular to a kind of rotating shuttle.
Background technology
Vertical rotating shuttle is the critical component of Sewing machines, and its major function is that upper thread and bottom line are intersected, and forms and fixedly secures the stitching circuit at cloth.Existing structure of revolving lock mainly comprises peg or spindle, bobbin case, shuttle frame and shuttle race, is provided with spur, conductor strip and Yue Quan on shuttle race.Bottom line is wrapped on peg or spindle.Shuttle race is around the rotation of shuttle frame, and spur hooks upper thread and forms wire loop, and makes upper thread wire loop walk around bottom line.Conductor strip is arranged on spur outside, the outside slippage of restriction upper thread.Along with shuttle race rotation, upper thread wire loop comes off from spur, and by the moon circle end line-off hook catch, complete take-up.But also there is many deficiencies in existing rotating shuttle: when upper thread departs from from spur, upper thread is easily stuck between conductor strip and spur, cannot depart from smoothly, and card line fault occurs.Meanwhile, for guaranteeing that spur hooks upper thread smoothly, between month circle and spur, there is larger gap, cause upper thread cannot by conductor strip, be caught exactly from spur departs from, upper thread can not be tightened up smoothly, make stitched products occur the quality problems of flotation line.Above-mentioned two situations often occur in Sewing machines uses, and have seriously limited operating efficiency and product quality.
Utility model content
The utility model is in order to overcome rotating shuttle of the prior art, easily to block the deficiency of line and flotation line problem, and a kind of vertical rotating shuttle that can effectively reduce card line and flotation line fault rate is provided.
For achieving the above object, the utility model is by the following technical solutions:
A kind of vertical rotating shuttle of the present utility model, comprise peg or spindle, bobbin case, shuttle frame and shuttle race, shuttle race side is provided with spur, conductor strip and Yue Quan, it is line-off hook that the moon encloses end, shuttle race end face is provided with rotating shaft, rotating shaft is arranged with Fixing shrink ring outward, and Fixing shrink ring surface is provided with the ring set fricting strip that one section of Fixing shrink ring circumferentially extends and protrude Fixing shrink ring surface; On conductor strip, slidably connect shift fork, between shift fork and conductor strip, be provided with reset tension spring, described shift fork comprises two parallel fork arms, two fork arm clamping wires sheets, shift fork is provided with the circular arc friction plate a concentric with shuttle race, and circular arc friction plate a is slidably connected by sliding seat a; The moon, the inner slide of circle end was connected with leg-of-mutton slide plate, and slide plate is provided with reseting shrapnel, and slide plate is fixedly connected with the circular arc friction plate b concentric with shuttle race, and circular arc friction plate b is by sliding seat b slip shuttle race; Shuttle race side is rotatably connected to power transmission shaft near the edge of rotating shaft, and described power transmission shaft is axial along shuttle race, and power transmission shaft one end extends to Fixing shrink ring side and is provided with friction pulley b, and the other end is provided with friction pulley a; Circular arc friction plate a leans friction pulley a away from one end of shuttle race towards the side of shuttle race, and the circular arc friction plate b dorsad side of shuttle race leans friction pulley a near one end of shuttle race.Described ring set fricting strip is positioned at default spur off-line position.In rotating shuttle running, shuttle race rotates, and during friction pulley b process ring set fricting strip, rotates.Friction pulley b drives friction pulley a to rotate.Because circular arc friction plate a leans friction pulley a away from one end of shuttle race, now shift fork can skid off with circular arc friction plate a, and the auxiliary coil of releasing between spur and conductor strip prevents that coil is stuck in generation card line fault between spur and conductor strip.In like manner, because circular arc friction plate b leans friction pulley a near one end of shuttle race, slide plate skids off from surveying in moon circle with circular arc friction plate b, extended structure as moon circle end line-off hook, shorten the distance between line-off hook and spur, make the upper thread departing from guarantee that upper thread tightens up smoothly for stably being caught by line-off hook, prevent the problem of flotation line.
As preferably, slide plate is provided with the sliding sleeve of rectangle, and be slidably connected at a month circle end by described sliding sleeve, slide plate is arranged on sliding sleeve away from a side of rotating shaft and is close to the inner side of line-off hook, reseting shrapnel is V " shape shell fragment; reseting shrapnel is arranged on sliding sleeve both sides, and one end connects sliding sleeve, and the other end connects a month circle.
As preferably, power transmission shaft is provided with reduction torsion spring.At friction pulley b, after ring set fricting strip, reduction torsion spring resets power transmission shaft revolution, makes friction pulley a reverse rotation simultaneously, drives circular arc friction plate a and circular arc friction plate b that shift fork and slide plate are resetted.
As preferably, ring set fricting strip end face is used asbestos material, and circular arc friction plate a is all used asbestos material in the side of shuttle race dorsad towards side and the circular arc friction plate b of shuttle race, and the wheel face of friction pulley a and friction pulley b is used asbestos material.Asbestos material has higher coefficient of friction and has higher heat resistance and mechanical strength, while making friction pulley b through ring set fricting strip end face, can make due to rubbing action each other friction pulley b rotate, and friction pulley a rotates and allows to utilize frictional force that circular arc friction plate a and circular arc friction plate b are slided, thereby effective guarantee the utility model stable operation.
Therefore, the utlity model has following beneficial effect: (1) effectively reduces card line rate of breakdown; (2) effectively prevent the generation of flotation line problem; (3) working stability, improves the quality of products.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that schematic diagram is looked on a left side of Fig. 1.
in figure:
1 bobbin case; 2 shuttle races; 3 spurs; 4 conductor strips; Enclose May; 6 line-off hooks; 7 rotating shafts; 8 Fixing shrink rings; 9 ring set fricting strips; 10 shift forks; 11 fork arms; 12 circular arc friction plate a; 13 sliding seat a; 14 reset tension springs; 15 slide plates; 16 circular arc friction plate b; 17 sliding seat b; 18 sliding sleeves; 19 reseting shrapnels; 20 power transmission shafts; 21 friction pulley a; 22 friction pulley b.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Embodiment: as shown in Figure 1 and Figure 2, a kind of vertical rotating shuttle of the present utility model, comprises peg or spindle, bobbin case 1, shuttle frame and shuttle race 2, shuttle race 2 sides are provided with spur 3, conductor strip 4 and month circle 5, and month circle 5 ends are line-off hook 6, and shuttle race 2 end faces are provided with rotating shaft 7.
Rotating shaft 7 is outer is arranged with Fixing shrink ring 8, and Fixing shrink ring 8 surfaces are provided with the ring set fricting strip 9 that one section of Fixing shrink ring 8 circumferentially extends and protrude Fixing shrink ring 8 surfaces.Described ring set fricting strip 9 is positioned at default spur 3 off-line positions.Ring set fricting strip 9 end faces are used asbestos material.
On conductor strip 4, slidably connect shift fork 10, between shift fork 10 and conductor strip 4, be provided with reset tension spring 14, described shift fork 10 comprises two parallel fork arms 11, two fork arm 11 clamping wires sheets 4, shift fork 10 is provided with the circular arc friction plate a12 concentric with shuttle race 2, and circular arc friction plate a12 is slidably connected by sliding seat a13.Circular arc friction plate a12 is used asbestos material towards the side of shuttle race 2.
The moon, the inner slide of circle 5 ends was connected with leg-of-mutton slide plate 15, and slide plate 15 is provided with the sliding sleeve 18 of rectangle, and was slidably connected at month circle 5 ends by described sliding sleeve 18.Slide plate 15 is arranged on sliding sleeve 18 away from a side of rotating shaft 7 and is close to the inner side of line-off hook 6.Sliding sleeve 18 both sides are provided with V " reseting shrapnel 19 of shape, one end connects sliding sleeve 18, and the other end connects a month circle 5.Slide plate 15 is provided with reseting shrapnel 19, and slide plate 15 is fixedly connected with the circular arc friction plate b16 concentric with shuttle race 2, and circular arc friction plate b16 is by sliding seat b17 slip shuttle race 2.The circular arc friction plate b16 dorsad side of shuttle race 2 is used asbestos material.
Shuttle race 2 sides are rotatably connected to power transmission shaft 20 near the edge of rotating shaft 7, and described power transmission shaft 20 is axial along shuttle race 2, and power transmission shaft 20 is provided with reduction torsion spring.Power transmission shaft 20 one end extend to Fixing shrink ring 8 sides and are provided with friction pulley b22, and the other end is provided with friction pulley a21.The wheel face of friction pulley a21 and friction pulley b22 is used asbestos material.When shuttle race 2 rotates, the track that friction pulley b22 rotates with shuttle race 2 is through ring set fricting strip 9 end faces, and friction pulley b22 equals the height on ring set fricting strip 9 end faces protrusion Fixing shrink ring 8 surfaces near one end of Fixing shrink ring 8 and the distance on Fixing shrink ring 8 surfaces.Circular arc friction plate a12 leans friction pulley a21 away from one end of shuttle race 2 towards the side of shuttle race 2, and the circular arc friction plate b16 dorsad side of shuttle race 2 leans friction pulley a21 near one end of shuttle race 2.
In rotating shuttle running, shuttle race 2 rotates, and during friction pulley b22 process ring set fricting strip 9, rotates.Friction pulley b22 drives friction pulley a21 to rotate.Because circular arc friction plate a12 leans friction pulley a21 away from one end of shuttle race 2, now shift fork 10 can skid off with circular arc friction plate a12, and the auxiliary coil of releasing between spur 3 and conductor strip 4 prevents that coil is stuck in generation card line fault between spur 3 and conductor strip 4.In like manner, because circular arc friction plate b16 leans friction pulley a21 near one end of shuttle race 2, slide plate 15 skids off from enclosing 5 interior surveys the moon with circular arc friction plate b16, as the extended structure that encloses 5 end line-off hooks 6 moon, shorten the distance between line-off hook 6 and spur 3, make the upper thread departing from guarantee that upper thread tightens up smoothly for stably being caught by line-off hook 6, prevent the problem of flotation line.
At friction pulley b22, after ring set fricting strip 9, reset tension spring 14 plays reset response, and shift fork 10 is resetted.Reseting shrapnel 19 plays reset response, and slide plate 15 is resetted.Reseting shrapnel 19 resiliences are quick, can make rapidly slide plate 15 reset, and drive friction pulley a21 and circular arc friction plate a12 simultaneously, contribute to the reset of shift fork 10.Reduction torsion spring resets power transmission shaft 20 revolutions, makes friction pulley a21 reverse rotation simultaneously, drives circular arc friction plate a12 and circular arc friction plate b16 that shift fork 10 and slide plate 15 are resetted.
Claims (4)
1. a vertical rotating shuttle, comprise peg or spindle, bobbin case (1), shuttle frame and shuttle race (2), shuttle race (2) side is provided with spur (3), conductor strip (4) He Yuequan (5), it is line-off hook (6) that the moon encloses (5) end, shuttle race (2) end face is provided with rotating shaft (7), it is characterized in that, the outer Fixing shrink ring (8) that is arranged with of rotating shaft (7), Fixing shrink ring (8) surface is provided with the ring set fricting strip (9) that one section of Fixing shrink ring (8) circumferentially extends and protrude Fixing shrink ring (8) surface; On conductor strip (4), slidably connect shift fork (10), between shift fork (10) and conductor strip (4), be provided with reset tension spring (14), described shift fork (10) comprises two parallel fork arms (11), two fork arms (11) clamping wires sheets (4), the circular arc friction plate a(12 that shift fork (10) is provided with and shuttle race (2) is concentric), circular arc friction plate a(12) by sliding seat a(13) be slidably connected; The inner slide that the moon encloses (5) end is connected with leg-of-mutton slide plate (15), slide plate (15) is provided with reseting shrapnel (19), the circular arc friction plate b(16 that slide plate (15) is fixedly connected with and shuttle race (2) is concentric), circular arc friction plate b(16) by sliding seat b(17) slip shuttle race (2); Shuttle race (2) side is rotatably connected to power transmission shaft (20) near the edge of rotating shaft (7), described power transmission shaft (20) is axial along shuttle race (2), power transmission shaft (20) one end extends to Fixing shrink ring (8) side and is provided with friction pulley b(22), the other end is provided with friction pulley a(21); Circular arc friction plate a(12) side towards shuttle race (2) leans friction pulley a(21) away from one end of shuttle race (2), circular arc friction plate b(16) dorsad the side of shuttle race (2) lean friction pulley a(21) near one end of shuttle race (2).
2. a kind of vertical rotating shuttle according to claim 1, it is characterized in that, slide plate (15) is provided with the sliding sleeve (18) of rectangle, and be slidably connected at month circle (5) end by described sliding sleeve (18), slide plate (15) is arranged on sliding sleeve (18) away from a side of rotating shaft (7) and is close to the inner side of line-off hook (6), and reseting shrapnel (19) is V " shape shell fragment, reseting shrapnel (19) is arranged on sliding sleeve (18) both sides; one end connects sliding sleeve (18), and the other end connects a month circle (5).
3. a kind of vertical rotating shuttle according to claim 1, is characterized in that, power transmission shaft (20) is provided with reduction torsion spring.
4. according to a kind of vertical rotating shuttle described in claim 1 or 2 or 3, it is characterized in that, ring set fricting strip (9) end face is used asbestos material, circular arc friction plate a(12) towards side and the circular arc friction plate b(16 of shuttle race (2)) dorsad the side of shuttle race (2) all use asbestos material, friction pulley a(21) and friction pulley b(22) surface all wraps up asbestos material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167569.2U CN203846263U (en) | 2014-04-09 | 2014-04-09 | Vertical rotating hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167569.2U CN203846263U (en) | 2014-04-09 | 2014-04-09 | Vertical rotating hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203846263U true CN203846263U (en) | 2014-09-24 |
Family
ID=51559300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420167569.2U Expired - Lifetime CN203846263U (en) | 2014-04-09 | 2014-04-09 | Vertical rotating hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203846263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609345A (en) * | 2020-10-27 | 2021-04-06 | 王凯 | Auxiliary cleaning device for preventing thread jamming of sewing machine |
| WO2022111488A1 (en) * | 2020-11-27 | 2022-06-02 | 中山市伊诺特智能科技有限公司 | Rotary hook |
-
2014
- 2014-04-09 CN CN201420167569.2U patent/CN203846263U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609345A (en) * | 2020-10-27 | 2021-04-06 | 王凯 | Auxiliary cleaning device for preventing thread jamming of sewing machine |
| WO2022111488A1 (en) * | 2020-11-27 | 2022-06-02 | 中山市伊诺特智能科技有限公司 | Rotary hook |
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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 |
Granted publication date: 20140924 |
|
| CX01 | Expiry of patent term |