CN204237982U - The loose ends structure of Sewing machines - Google Patents
The loose ends structure of Sewing machines Download PDFInfo
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- CN204237982U CN204237982U CN201420629183.9U CN201420629183U CN204237982U CN 204237982 U CN204237982 U CN 204237982U CN 201420629183 U CN201420629183 U CN 201420629183U CN 204237982 U CN204237982 U CN 204237982U
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Abstract
The utility model relates to a kind of thread releasing mechanism of Sewing machines, is installed in the upper body of Sewing machines, includes driver element, lead unit and loose ends unit; Described driver element comprises electromagnetic valve and the drive rod by solenoid-driven; Described lead unit comprises the first trace by drive rod interlock, the push piece by the first trace interlock, to provide the control piece of push piece one pivot point and push against by push piece and adjust the wire group of sewing wire rod with push piece pivot joint normality; The second trace and one that described loose ends unit comprises by drive rod interlock pulls by the second trace interlock the bracing wire portion that sewing wire rod produces enough and to spare line segment.First trace interlock push piece of the present utility model is comparatively smooth-going, and therefore push piece can opposing leads group beat reposefully.
Description
Technical field
The utility model relates to a kind of thread releasing mechanism, and especially a kind of beat reposefully, to adjust the thread releasing mechanism of the Sewing machines of wire tension, belongs to sewing machine technique field.
Background technology
Generally commonly use Sewing machines and usually include thread-loosening device and lead frame, wherein lead frame is wound with the clip wheel group of sewing wire rod to car pin certainly in order to guide vehicle suture material, thread-loosening device is then in order to the tension force of adjustment by the sewing wire rod of lead frame guiding, as the Republic of China's No. 560547 new patent, for a kind of sewing servicing unit of Sewing machines is improved, be establish required lead frame to be separately provided with auxiliary clip wheel and thread-loosening device by the vertical hole of two groups near upper and lower start place of car pin for group simultaneously, the end of a thread bottom of netting twine is released toward the preceding paragraph place has enough and to spare line segment to make it to utilize the power source of thread-loosening device to drive driving lever to make, become and just can to knot successful sewing servicing unit at the first pin for during next sewing at once.Wherein this power source is rotary electric magnet, rotates, and drive driving lever to make the end of a thread bottom of netting twine draw high and have enough and to spare line segment on the net through driven by power.
In addition, as Republic of China M472072 new patent, it is the loose ends structure of a Sewing machines, when its pushing and pressing part drives by the first trace, the stroke with movement is carried out rotating in pushing and pressing part simultaneously, and therefore pushing and pressing part easily produces moving of irregularity and causes pushing and pressing part to produce erratic vibrations in the process of pilot group.
From above-mentioned prior art, use rotary electric magnet as the power source rotating this driving lever, although have, volume is little, saving Sewing machines overall volume, easily damages, has the problem that fault rate is high.In addition, pushing and pressing part produces the problem that vibrations then easily cause wearing and tearing.Therefore, how to design the higher thread-loosening device of a stability and obviously become a problem to be solved.
Utility model content
Technical problem to be solved in the utility model to overcome in prior art existing above-mentioned deficiency, and provide a kind of durable, failure rate is low and the thread releasing mechanism of the Sewing machines of smooth-going movement.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of thread releasing mechanism of Sewing machines, be installed in the upper body of Sewing machines, comprise driver element, lead unit and loose ends unit, it is characterized in that: described driver element comprises electromagnetic valve and is articulated on electromagnetic valve by the drive rod that solenoid-driven is passed along horizontal axis, described lead unit comprises and to be connected with drive rod and to carry out the first trace of rotating by drive rod interlock, by the push piece of the first trace interlock, with push piece pivot joint and normality provides the control piece of push piece pivot point, guide car suture material also adjusts the wire group of the tension force of sewing wire rod by push piece pushing and pressing, described push piece has and is hubbed at control piece and carries out the pivot part that rotates with pivot point, towards extended and assemble with the first trace the braking parts producing interlock away from pivot part direction one, and to integrally extending between pivot part and braking parts, also by braking parts interlock, opposing leads group produces the compression part of beat and pilot group adjustment sewing wire tension towards wire prescription, described loose ends unit comprises and to be connected with drive rod and the second trace rotated by drive rod interlock and pass for sewing wire rod and be subject to the second trace interlock rotate and pull the bracing wire portion that sewing wire rod produces enough and to spare line segment.
Bracing wire portion described in the utility model comprises the connecting portion of connection second trace and passes from connecting portion extension for sewing wire rod and hook the hook portion of sewing wire rod.
First trace described in the utility model comprises the first pole be connected with drive rod and the second pole connect with the first pole and push piece group respectively.
Wire group described in the utility model comprises and to be connected with push piece and upper body respectively and normality pushes against the elastic parts of upper body and push piece.
Control piece described in the utility model includes the operation of controlled means and produces the cross bar of shift reciprocately, with the beat portion of cross bar pivot joint and with push piece pivot joint and by the Actuator Division of beat portion interlock.
Actuator Division described in the utility model have perforation and wear perforation wear portion, the described portion of wearing has first section of wearing through perforation and second section of wearing through pivot part, described perforation is oval elongated hole, described first section of wearing coordinates the shape of perforation to be an elliptical cylinder-shape, and described second section of wearing is cylindrical.
Compression part described in the utility model includes the second linkage section being connected the first linkage section towards the first linkage section extended away from pivot part and braking parts direction between pivot part with braking parts and relative first linkage section at a predetermined angle.
Compression part described in the utility model has pushing and pressing inclined-plane, and when described wire group is contained in push piece rotation, by pushing against inclined-plane pushing and pressing, the draw bead of displacement, the fixed hub being locked in upper body outer rim, the guide roller being sheathed on the tension force of fixed hub rise car load suture material, normality strained routing of line are taken turns to provide the press section of guide roller one rotating friction force and wear fixed hub and passed the push rod of press section away from guide roller by draw bead displacement pushes against.
First trace described in the utility model comprises the first protuberance of rotating by drive rod interlock and is connected with the first protuberance and when the first protuberance rotates, is subject to the first protuberance to extrude the first elastic part of generation one restoring force.
Second trace described in the utility model comprises the second protuberance of rotating by drive rod interlock and is connected with the second protuberance and when the second protuberance rotates, is subject to the second protuberance to extrude the second elastic part of generation one restoring force.
The utility model compared with prior art, has following positive effect and feature:
1. the utility model promotes drive rod through electromagnetic valve, make drive rod interlock first trace and the second trace, and then adjustment wire group puts on the tension force on sewing wire rod, make bracing wire portion pull sewing wire rod and produce an enough and to spare line segment, this kind makes flowing mode using reciprocating electromagnetic valve as power source, Sewing machines of commonly using compared to prior art adopts accurate rotary electric magnet, and cost is lower and not fragile, failure rate is low and can save user's subsequent maintenance cost;
2. the first trace interlock push piece of the present utility model makes push piece be that pivot point beat is comparatively smooth-going relative to this control piece, and therefore push piece can relative this wire group beat and control this wire group reposefully.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is STRUCTURE DECOMPOSITION schematic diagram () of the present utility model.
Fig. 3 is STRUCTURE DECOMPOSITION schematic diagram (two) of the present utility model.
Fig. 4 is illustrative view of the present utility model (one).
Fig. 5 is illustrative view of the present utility model (two).
Fig. 6 is another visual angle illustrative view (one) of the present utility model.
Fig. 7 is another visual angle illustrative view (two) of the present utility model.
Fig. 8 is loose ends illustrative view () of the present utility model.
Fig. 9 is loose ends illustrative view (two) of the present utility model.
Figure 10 is loose ends illustrative view (three) of the present utility model.
In figure: 1 driver element, 11 electromagnetic valves, 12 drive rods, 2 lead units, 21 first traces, 211 first poles, 212 second poles, 213 first protuberances, 214 first elastic part, 22 push pieces, 221 pivot parts, 222 braking parts, 223 compression parts, 224 first linkage sections, 225 second linkage sections, 226 pushing and pressing inclined-planes, 23 control pieces, 231 cross bars, 232 beat portions, 233 Actuator Divisions, 234 perforation, 235 wear portion, 236 first sections of wearing, 237 second sections of wearing, 24 wire groups, 241 draw bead 242 fixed hubs, 243 guide rollers, 244 press sections, 245 push rods, 25 elastic parts, 3 loose ends unit, 31 second traces, 311 second protuberances, 312 second elastic part, 32 bracing wire portions, 321 connecting portions, 322 hook portions, 4 sewing wire rods, 4a enough and to spare line segment, 100 Sewing machiness, 101 upper body.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail.
Embodiment:
See Fig. 1, the present embodiment its be installed in the upper body 101 of Sewing machines 100, include driver element 1, lead unit 2 and loose ends unit 3.
See Fig. 2 and Fig. 3, driver element 1 includes electromagnetic valve 11 and is articulated in the drive rod 12 of electromagnetic valve 11.In addition, driver element 1 can be electrically connected switch (not shown), and the exportable control signal of this switch is to electromagnetic valve 11, and when electromagnetic valve 11 receives control signal, electromagnetic valve 11 can drive drive rod 12 to move back and forth along a horizontal axis.This switch also can be a pedal, but does not implement aspect with this and be limited.Lead unit 2 includes the first trace 21, push piece 22, control piece 23 and wire group 24, wherein, first trace 21 includes first pole 211 be connected with drive rod 12, and connect with the first pole 211 and push piece 22 groups respectively and the second pole 212 of mutual interlock, push piece 22 includes pivot part 221, court is away from the pivot part 221 direction extended braking parts 222 of one and integrally extend the compression part 223 between pivot part 221 and braking parts 222 towards this wire group 24 direction.Further, compression part 223 includes the first linkage section 224 towards extending away from pivot part 221 and braking parts 222 direction, relative first linkage section 224 and connect the second linkage section 225 of the first linkage section 224 at a predetermined angle and be arranged at the second linkage section 225 and towards the pushing and pressing inclined-plane 226 of wire group 24.Braking parts 222 and the first trace 21 are assembled and mutual interlock, and pivot part 221 is hubbed at control piece 23, and compression part 223 then produces beat by braking parts 222 interlock centered by pivot part 221.Control piece 23 includes cross bar 231, beat portion 232 and Actuator Division 233.Cross bar 231 controlled means can operate and produce shift reciprocately, beat portion 232 be connected to upper body 101 and with cross bar 231 and Actuator Division 233 pivot joint, Actuator Division 233 is then respectively with pivot part 221 pivot joint of beat portion 232 and push piece 22 and by beat portion 232 interlock.Actuator Division 233 has the portion that wears 235 that a perforation 234 and wears perforation 234, wears the second section of wearing 237 that portion 235 has first section of wearing 236 through perforation 234 and the pivot part 221 through push piece 22.Wherein, perforation 234 is an oval elongated hole, and the first section of wearing 236 coordinates the shape of perforation 234 to be an elliptical cylinder-shape, and the second section of wearing 237 is then one cylindrical, but does not implement aspect with this and be limited.From the above, when push piece 22 pivot joint mutual to Actuator Division 233, the top that portion 235 can be positioned at perforation 234 is worn.In other words, perforation 234 top with wear pivot part 221 pivot point that 235, portion provides push piece 22 normally, and then make push piece 22 can according to centered by pivot point produce rotate beat, as shown in figs. 4 and 5.In the present embodiment, the control device that cross bar 231 accepts can be selected manual operation or adopt automatic control operation, but according to this implement aspect be limited.And wire group 24 is for guiding a sewing wire rod 4 and adjusting the tension force of sewing wire rod 4 by the push piece 22 towards wire group 24 direction beat pushes against, it comprises one and pushed against and the draw bead 241 of displacement by the pushing and pressing inclined-plane 226 of compression part 223, one fixed hub 242 being locked in upper body 101 outer rim, one is sheathed on the guide roller 243 that fixed hub 242 raises the tension force of car load suture material 4, one normality strained routing of line is taken turns 243 and is provided the press section 244 of guide roller 243 1 rotating friction force, and wear fixed hub 242 and pass the push rod 245 of press section 244 away from guide roller 243 by draw bead 241 displacement pushing and pressing, as shown in Fig. 8 to Figure 10.
See Fig. 2 and Fig. 8, loose ends unit 3 comprises and is connected and the second trace 31 rotated by drive rod 12 interlock with drive rod 12, and passes for sewing wire rod 4 and be subject to the bracing wire portion 32 that the second trace 31 interlock rotates.Wherein, bracing wire portion 32 comprises the connecting portion 321 of connection second trace 31, and passes from connecting portion 321 extension for sewing wire rod 4 and hook the hook portion 322 of sewing wire rod 4.
See Fig. 2 and Fig. 3, in order to make push piece 22, first trace 21 and the second trace 31 be on specific position normally, lead unit 2 more comprises and to be connected with push piece 22 and upper body 101 respectively and normality push against the elastic parts 25 of upper body 101 and push piece 22; First trace 21 comprises the first protuberance 213 rotated by drive rod 12 interlock, and is connected with the first protuberance 213 and when the first protuberance 213 rotates, is subject to the first protuberance 213 to extrude the first elastic part 214 of generation one restoring force; And the second trace 31 comprises the second protuberance 311 rotated by drive rod 12 interlock, and be connected with the second protuberance 311 and extrude by the second protuberance 311 the second elastic part 312 producing another restoring force when the second protuberance 311 rotates.
Sewing wire rod 4 is be wound in the pin post (not shown) also through 32 to front end, bracing wire portion in wire group 24.When sewing operation comes to an end, the tension force of sewing wire rod 4 needs to reduce so that the carrying out of trimming operation.
See Fig. 4 to Fig. 5, now, user only need gauge tap and output control signal to electromagnetic valve 11, electromagnetic valve 11 controls drive rod 12 then can be driven to move back and forth along a horizontal axis after signal in reception.Simultaneously, first pole 211 of head rod and the second pole 212 can because of drive rod 12 synchronous interlock drive the braking parts 222 of push piece 22, and then make the pivot part 221 of push piece 22 with bore a hole 234 top with wear pivot point that portion 235 provides and opposing leads group 24 produces beat.Then, 226, the pushing and pressing inclined-plane of compression part 223 can push against draw bead 241, and then makes draw bead 241 promote push rod 245, and push rod 245 is passed press section 244 and made press section 244 away from guide roller 243.Finally, the rotating friction force that press section 244 is bestowed on guide roller 243 then temporarily disappears, and guide roller 243 is freely rotated, and reduce simultaneously sewing wire rod 4 along during guide roller 243 surface displacement because of tension force that frictional force produces.
In addition, in sewing process, can need because of different sewing gimmicks to rotate or moving cloth, now need the tension force reducing sewing wire rod 4, be just able to moving cloth.When producing shift reciprocately when the controlled means operation of the cross bar 231 of control piece 23, cross bar 231 can drive beat portion 232 beat and then make Actuator Division 233 move the pivot part 221 of push piece 22.Now, 226, the pushing and pressing inclined-plane of compression part 223 can push against draw bead 241, so make draw bead 241 promote push rod 245 and according to above-mentioned make flowing mode and reduce sewing wire rod 4 along during guide roller 243 surface displacement because of tension force that frictional force produces.
See Fig. 4 and Fig. 5, when the first trace 21 and the second trace 31 drive by drive rod 12 and rotate, the first protuberance 213 and the second protuberance 311 also rotate by driving respectively.Now, the first protuberance 213 can extrude the first elastic part 214, second protuberance 311 can extrude the second elastic part 312, and therefore the first elastic part 214 and the second elastic part 312 are squeezed respectively and produce this restoring force.After hook portion 322 pulls sewing wire rod 4, namely electromagnetic valve 11 stops driving drive rod 12 simultaneously, now the first protuberance 213 and the second protuberance 311 are pushed back original position with restoring force by the first elastic part 214 and the second elastic part 312 respectively, make the first trace 21 and the second trace 31 be able to involution.In addition, when the first trace 21 drives by drive rod 12 and rotates, push piece 22 extrudes elastic parts 25 by the interlock of the first trace 21, and therefore elastic parts 25 is squeezed and produces an elastic force.When namely electromagnetic valve 11 stops driving drive rod 12, now push piece 22 can be pushed back original position with elastic force by elastic parts 25, makes the first trace 21 be able to involution with push piece 22.
See Fig. 8 to Figure 10, when drive rod 12 drives by electromagnetic valve 11 and passes, the second trace 31 also rotates by drive rod 12 interlock, and then drives bracing wire portion 32 to rotate.Now, hook portion 322 carries out rotating the action of bracing wire with connecting portion 321 for fulcrum with second trace 31 one end, and then is pulled upwardly by sewing wire rod 4, makes sewing wire rod 4 produce an enough and to spare line segment 4a.
The thread releasing mechanism of the Sewing machines of the present embodiment, it is installed in the upper body of Sewing machines, includes driver element, lead unit and loose ends unit.Driver element includes electromagnetic valve, and is subject to the drive rod of solenoid-driven and movement.Lead unit comprises one and carries out by drive rod interlock the first trace of rotating, by the push piece of the first trace interlock, with push piece pivot joint and normality provides the control piece of push piece one pivot point, and guide car suture material adjust the wire group of the tension force of sewing wire rod by push piece pushing and pressing.Wherein, push piece have one be hubbed at control piece and the pivot part carrying out rotating with pivot point, towards extended away from pivot part direction one and assemble with the first trace the braking parts producing interlock, and towards wire prescription to integrally to extend between pivot part and braking parts and opposing leads group generation beat and pilot group adjust the compression part of sewing wire tension by braking parts interlock.Loose ends unit comprises one and is connected and the second trace rotated by drive rod interlock with drive rod, and passes for sewing wire rod and rotated by the second trace interlock and pull the bracing wire portion that sewing wire rod produces an enough and to spare line segment.First trace interlock push piece of the present utility model is then comparatively smooth-going, and therefore push piece can opposing leads group beat reposefully.
In addition, it should be noted that, the specific embodiment described in this description, as long as the undeclared concrete shape of its part and size, then this part can for any shape and size adapted with its structure; Meanwhile, the title that part is got also can be different.All equivalences of doing according to structure, feature and the principle described in the utility model inventional idea or simple change, be included in the protection domain of the utility model patent.
Claims (10)
1. the thread releasing mechanism of a Sewing machines, be installed in the upper body of Sewing machines, comprise driver element, lead unit and loose ends unit, it is characterized in that: described driver element comprises electromagnetic valve and is articulated on electromagnetic valve by the drive rod that solenoid-driven is passed along horizontal axis, described lead unit comprises and to be connected with drive rod and to carry out the first trace of rotating by drive rod interlock, by the push piece of the first trace interlock, with push piece pivot joint and normality provides the control piece of push piece pivot point, guide car suture material also adjusts the wire group of the tension force of sewing wire rod by push piece pushing and pressing, described push piece has and is hubbed at control piece and carries out the pivot part that rotates with pivot point, towards extended and assemble with the first trace the braking parts producing interlock away from pivot part direction one, and to integrally extending between pivot part and braking parts, also by braking parts interlock, opposing leads group produces the compression part of beat and pilot group adjustment sewing wire tension towards wire prescription, described loose ends unit comprises and to be connected with drive rod and the second trace rotated by drive rod interlock and pass for sewing wire rod and be subject to the second trace interlock rotate and pull the bracing wire portion that sewing wire rod produces enough and to spare line segment.
2. the thread releasing mechanism of Sewing machines according to claim 1, is characterized in that: described bracing wire portion comprises the connecting portion of connection second trace and passes from connecting portion extension for sewing wire rod and hook the hook portion of sewing wire rod.
3. the thread releasing mechanism of Sewing machines according to claim 1, is characterized in that: the first described trace comprises the first pole be connected with drive rod and the second pole connect with the first pole and push piece group respectively.
4. the thread releasing mechanism of Sewing machines according to claim 1, is characterized in that: described wire group comprises and to be connected with push piece and upper body respectively and normality pushes against the elastic parts of upper body and push piece.
5. the thread releasing mechanism of Sewing machines according to claim 1, is characterized in that: described control piece includes the operation of controlled means and produces the cross bar of shift reciprocately, with the beat portion of cross bar pivot joint and with push piece pivot joint and by the Actuator Division of beat portion interlock.
6. the thread releasing mechanism of Sewing machines according to claim 5, it is characterized in that: described Actuator Division have perforation and wear perforation wear portion, the described portion of wearing has first section of wearing through perforation and second section of wearing through pivot part, described perforation is oval elongated hole, described first section of wearing coordinates the shape of perforation to be an elliptical cylinder-shape, and described second section of wearing is cylindrical.
7. the thread releasing mechanism of Sewing machines according to claim 1, is characterized in that: described compression part includes the second linkage section being connected the first linkage section towards the first linkage section extended away from pivot part and braking parts direction between pivot part with braking parts and relative first linkage section at a predetermined angle.
8. the thread releasing mechanism of the Sewing machines according to claim 1 or 7, it is characterized in that: described compression part has pushing and pressing inclined-plane, when described wire group is contained in push piece rotation, by pushing against inclined-plane pushing and pressing, the draw bead of displacement, the fixed hub being locked in upper body outer rim, the guide roller being sheathed on the tension force of fixed hub rise car load suture material, normality strained routing of line are taken turns to provide the press section of guide roller one rotating friction force and wear fixed hub and are passed the push rod of press section away from guide roller by draw bead displacement pushes against.
9. the thread releasing mechanism of Sewing machines according to claim 1, is characterized in that: the first described trace comprises the first protuberance of rotating by drive rod interlock and is connected with the first protuberance and when the first protuberance rotates, is subject to the first protuberance to extrude the first elastic part of generation one restoring force.
10. the thread releasing mechanism of Sewing machines according to claim 1, is characterized in that: the second described trace comprises the second protuberance of rotating by drive rod interlock and is connected with the second protuberance and when the second protuberance rotates, is subject to the second protuberance to extrude the second elastic part of generation one restoring force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629183.9U CN204237982U (en) | 2014-10-28 | 2014-10-28 | The loose ends structure of Sewing machines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629183.9U CN204237982U (en) | 2014-10-28 | 2014-10-28 | The loose ends structure of Sewing machines |
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| CN204237982U true CN204237982U (en) | 2015-04-01 |
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| CN201420629183.9U Active CN204237982U (en) | 2014-10-28 | 2014-10-28 | The loose ends structure of Sewing machines |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442202A (en) * | 2015-12-28 | 2016-03-30 | 杰克缝纫机股份有限公司 | Sewing machine thread loosening mechanism and thread loosening method thereof |
-
2014
- 2014-10-28 CN CN201420629183.9U patent/CN204237982U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442202A (en) * | 2015-12-28 | 2016-03-30 | 杰克缝纫机股份有限公司 | Sewing machine thread loosening mechanism and thread loosening method thereof |
| CN105442202B (en) * | 2015-12-28 | 2018-08-28 | 杰克缝纫机股份有限公司 | A kind of thread releasing mechanism for sewing machine and its loose ends method |
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