CN203541397U - Feeding acceleration and deceleration mechanism for automatic feeding device of spring machine - Google Patents
Feeding acceleration and deceleration mechanism for automatic feeding device of spring machine Download PDFInfo
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- CN203541397U CN203541397U CN201320743487.3U CN201320743487U CN203541397U CN 203541397 U CN203541397 U CN 203541397U CN 201320743487 U CN201320743487 U CN 201320743487U CN 203541397 U CN203541397 U CN 203541397U
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- feeding
- acceleration
- deceleration
- pull bar
- proximity switch
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Abstract
The utility model relates to the technical field of spring manufacturing machines, in particular to a feeding acceleration and deceleration mechanism for an automatic feeding device of a spring machine. The feeding acceleration and deceleration mechanism comprises a pull rod, a feeding motor and a feeding plate. The feeding acceleration and deceleration mechanism is further provided with an analog proximity switch, an acceleration and deceleration cam and a transducer. The acceleration and deceleration cam is installed on a rotating point of the pull rod and rotates synchronously with the pull rod. The analog proximity switch is arranged on the periphery of the acceleration and deceleration cam. The transducer receives signals sent by the analog proximity switch to control the feeding motor. The feeding motor drives the feeding plate. The feeding acceleration and deceleration mechanism is simple in structure and easy to manufacture and control, feeding is accelerated or decelerated automatically according to deflection of feeding stress of the pull rod, tension of a spring wire rod keeps a fixed state, and does not change along with the change of the production speed, stressing of the wire rod keeps constant, the wire rod is free of deformation, and the feeding quality of the spring machine is ensured.
Description
Technical field
The utility model relates to spring production machine tool technical field, refers in particular to a kind of feeding device for the production of spring, the speed of production of self adaptation coiling machine, automatically regulate feeding speed, maintain fixing wire rod pulling force, can avoid wire rod distortion or pull, coordinate coiling machine Production requirement.
Background technology
As shown in Figure 1, 2, known coiling machine 90 and automatic feeder 100, automatic feeder 100 is sent wire rod 101 and after pull bar 102, is entered coiling machine 90 and carry out processing and forming.Shown in Fig. 2, automatic feeder 100 generally has point driving switch 103 and back-moving spring 104, and back-moving spring 104 pulls pull bar 102.When coiling machine is produced during spring, the pull bar 102 of automatic feeder 100 is stressed and point driving switch 103 is moved, and starts feed motor, rotates drum.When the stressed pulling force that is less than back-moving spring 104 of pull bar 102, back-moving spring 104 pulls pull bar 102 to reset and point driving switch 103 is resetted, and feed motor stops operating.
Existing pay-off has following defect:
1, the velocity of rotation of pay-off only has crawl and stops, and when coiling machine speed of production is fast, pay-off will be with the feeding of adjusting microinching mode, and causes wire rod distortion or distortion.
2, as shown in Fig. 3 a, 3b, 3c, back-moving spring 104 is because of the speed speed of coiling machine, and back-moving spring causes the inhomogeneous damage that causes wire rod of strength to the application of force of wire rod because of deflection difference.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, and a kind of feed acceleration and deceleration mechanism of coiling machine automatic feeder is provided, and makes the drawing tension of spring wire keep fixing, not because the speed of speed of production changes.
For achieving the above object, the utility model adopts following technical scheme:
The feed acceleration and deceleration mechanism of coiling machine automatic feeder, include pull bar, feed motor and supply disk, this feed acceleration and deceleration mechanism also has analog proximity switch, acceleration and deceleration cam, frequency converter, acceleration and deceleration cam is arranged in the run-on point of pull bar synchronizes and rotates with pull bar, analog proximity switch is arranged on the periphery of acceleration and deceleration cam, frequency converter receives the signal that analog proximity switch sends and controls feed motor, and feed motor drives supply disk.
The coiling machine automatic feeder feed acceleration and deceleration mechanism that the utility model provides, simple in structure, easily make and control, according to the stressed deflection of pull bar feeding, automatically plus-minus feeding speed, makes the drawing tension of spring wire keep fixing, not because the speed of speed of production changes, make wire rod be subject to the invariable shape of force retaining, guarantee coiling machine feeding quality.
accompanying drawing explanation:
Accompanying drawing 1,2,3a, 3b, 3c are prior art structural representation;
Accompanying drawing 4 is the structural representation that automatic feeder of the present utility model and coiling machine combine;
Accompanying drawing 5 is automatic feeder structural representation of the present utility model;
Accompanying drawing 5-1 is the partial structurtes enlarged diagram of Fig. 5;
Accompanying drawing 7-1 is the partial structurtes enlarged diagram of Fig. 7;
Structural representation when accompanying drawing 8 accelerates to 50RPM for automatic feeder of the present utility model;
Accompanying drawing 8-1 is the partial structurtes enlarged diagram of Fig. 8;
Structural representation when accompanying drawing 9 accelerates to 100RPM for automatic feeder of the present utility model;
Accompanying drawing 9-1 is the partial structurtes enlarged diagram of Fig. 9;
Accompanying drawing 10 structural representation when very fast warning is shut down for automatic feeder of the present utility model exceedes;
Accompanying drawing 10-1 is the partial structurtes enlarged diagram of Figure 10;
Accompanying drawing 11 is draw rod positions and supply disk rotation speed relation figure.
the specific embodiment:
Below in conjunction with accompanying drawing, the utility model is further illustrated:
Consult shown in Fig. 4 ~ 11, the utility model is about the feed acceleration and deceleration mechanism of coiling machine automatic feeder, and itself and feed acceleration and deceleration mechanism and warning release mechanism combine, and realize coiling machine Automatic-feeding.Wherein: feed acceleration and deceleration mechanism has analog proximity switch 41, acceleration and deceleration cam 42, frequency converter 43, feed motor 44, supply disk 45 and control circuit, acceleration and deceleration cam 42 is arranged on synchronizes rotation with pull bar 2 in the run-on point of pull bar 2, while realizing the stressed rotation of pull bar 2, acceleration and deceleration cam 42 is also followed rotation.In the present embodiment, be also provided with fixed pulley 1 in the run-on point of pull bar 2, be hung with sliding weight of steelyard 3 on fixed pulley 1, sliding weight of steelyard 3 is suspended on fixed pulley 1 by winding wire; The axle center of fixed pulley 1 and pull bar 2 are fixedly linked, pull bar 2 another overhanging ends have the line hole 21 wearing for spring wire, the moment in the axle center of the relative fixed pulley 1 of gravity of sliding weight of steelyard 3 equals the moment in the axle center of the stressed relative fixed pulley 1 of pull bar overhanging end, realizes constant force and resets.Acceleration and deceleration cam 42 is fixedly linked with fixed pulley 1, analog proximity switch 41 is arranged on the periphery of acceleration and deceleration cam 42, frequency converter 43 receives the signal that analog proximity switch 41 sends and controls feed motor 44, feed motor 44 drives supply disk 45, in the present embodiment, between feed motor 44 and supply disk 45, be also provided with reductor 46, be convenient to control.In the present embodiment, be also fixedly connected with and follow the shake-up arm 6 that fixed pulley 1 rotates on described fixed pulley 1, warning proximity switch 5 and reset proximity switch 7 are installed respectively by the limit place, two ends that touches arm 6 beats, realize warning conducting or homing action.Wherein shown in Fig. 4, the work that combines of automatic feeder and coiling machine, automatic feeder is rotated and is sent wire rod 8 by supply disk 45, wire rod 8 is through the line hole 21 of pull bar 2, enter subsequently coiling machine 9 and carry out processing and forming, coiling machine 9 is known technology, does not repeat them here.
As shown in Fig. 4 ~ 10, feed acceleration and deceleration mechanism adopts analog proximity switch 41, acceleration and deceleration cam 42, frequency converter 43, feed motor 44, supply disk 45, reductor 46 and control circuit to form.When coiling machine is produced spring, wire rod is pulled from feeding device, the stressed drive acceleration and deceleration of pull bar 2 cam 42 rotates, analog proximity switch 41 produces the variation on distance of reaction because acceleration and deceleration cam 42 rotates with acceleration and deceleration cam 42 peripheries, convert the variation of voltage to, via frequency converter 43, change feed motor 44 rotating speeds, then drive supply disk 45 via reductor 46.Analog proximity switch 41 is known technology, does not repeat them here.When revolution reaches required speed, the position of pull bar 2 will keep servo balance, provide coiling machine to produce spring, reach the demand of Automatic-feeding.When coiling machine feeding is slowed down, discharge feeding device pull bar 2 pulling force, pull bar 2 resets (in the present embodiment, it is by sliding weight of steelyard 3, with gravity, to rotate fixed pulley 1 to realize that pull bar 2 resets, but not limited thereto situation), acceleration and deceleration cam 42 is followed pull bar 2 and is rotated, the variation that analog proximity switch 41 inductions are upper with acceleration and deceleration cam 42 distances, be converted to the variation of voltage, via frequency converter 43, change feed motor 44 rotating speeds, via reductor 46, drive supply disk 45.When feeding stops, pull bar 2 will stop at reset proximity switch 7 places, touch arm 6 and follow fixed pulley 1 beat and make to reset that proximity switch 7 moves and automatic feeder will shut down.
Because pull bar resetting-mechanism keeps constant pulling force with sliding weight of steelyard 3, thus feeding device in the acceleration and deceleration course of work, wire rod be subject to force retaining certain, can not cause pulling and being out of shape of wire rod, guarantee wire rod feed quality.
As follows for the pull bar resetting constant force mechanisms specific works principle in the present embodiment:
As shown in Fig. 5,5-1,6, pull bar resetting constant force mechanisms adopts certain pulley mechanism, and the axle center of pull bar 2 and fixed pulley 1 is fixedly linked, and when pull bar 2 is stressed because wire rod pulls, because fixed pulley is a kind of arm of force mechanism that waits, uses sliding weight of steelyard 3 that pull bar is resetted.
Wire rod stressed=pull bar stressed
When pull bar 2 is stressed, be Fa, the rotary arm of pull bar 2 is La.
The gravity of sliding weight of steelyard 3 is Mg, and the arm of force of fixed pulley is Lb.
Equalising torque is: Fa × La=Mg × Lb
Pull bar is stressed=and wire rod is stressed=Mg × Lb/La
Because Mg, La, Lb are fixed number, when pull bar is stressed while leaving reduction point, pull bar (wire rod) is fixed by force retaining, not because backward stick action changes.
The gravity of sliding weight of steelyard equals the arm of force of the arm of force/fixed pulley of the pulling force × pull bar of pull bar
When Mg>Fa × La/Lb, during not feeding of coiling machine, sliding weight of steelyard 3 is conducted oneself with dignity drop-down, and fixed pulley 1 turns round, and can guarantee to reset, and automatic feeding stops automatically.
It is the wire diameter working range according to coiling machine that gravity is set, and by adjusting the weight of sliding weight of steelyard 3, it is convenient to implement.
Coiling machine is produced during spring, wire rod is pulled from feeding device, when the stressed drive fixed pulley 1 of pull bar 2 rotates an angle, because of the arm of force of fixed pulley 1 not tension member rotate and change, therefore can make wire rod be subject to the invariable shape of force retaining, guarantee coiling machine feeding quality.
Certainly; in conjunction with embodiment, the utility model is described in detail above; be only explanation technical conceive of the present utility model and feature; its object is to allow person skilled in the art understand content of the present utility model and implemented; can not limit protection domain of the present utility model with this; therefore the equivalence of doing according to the utility model Spirit Essence all changes or modifies, and all should be encompassed in protection domain of the present utility model.
Claims (1)
1. the feed acceleration and deceleration mechanism of coiling machine automatic feeder, include pull bar (2), feed motor (44) and supply disk (45), it is characterized in that: this feed acceleration and deceleration mechanism also has analog proximity switch (41), acceleration and deceleration cam (42), frequency converter (43), acceleration and deceleration cam (42) is arranged on synchronizes rotation with pull bar (2) in the run-on point of pull bar (2), analog proximity switch (41) is arranged on the periphery of acceleration and deceleration cam (42), frequency converter (43) receives the signal that analog proximity switch (41) sends and controls feed motor (44), feed motor (44) drives supply disk (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743487.3U CN203541397U (en) | 2013-11-23 | 2013-11-23 | Feeding acceleration and deceleration mechanism for automatic feeding device of spring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743487.3U CN203541397U (en) | 2013-11-23 | 2013-11-23 | Feeding acceleration and deceleration mechanism for automatic feeding device of spring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541397U true CN203541397U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743487.3U Expired - Fee Related CN203541397U (en) | 2013-11-23 | 2013-11-23 | Feeding acceleration and deceleration mechanism for automatic feeding device of spring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203541397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057513A (en) * | 2015-08-07 | 2015-11-18 | 乐清市东风弹簧制造有限公司 | Coiling machine pay-off frame |
| CN107716809A (en) * | 2017-12-01 | 2018-02-23 | 佛山市子活力弹簧有限公司 | A kind of coiling machine feed device |
-
2013
- 2013-11-23 CN CN201320743487.3U patent/CN203541397U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057513A (en) * | 2015-08-07 | 2015-11-18 | 乐清市东风弹簧制造有限公司 | Coiling machine pay-off frame |
| CN107716809A (en) * | 2017-12-01 | 2018-02-23 | 佛山市子活力弹簧有限公司 | A kind of coiling machine feed device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141123 |
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| EXPY | Termination of patent right or utility model |