CN203541395U - Pull rod resetting constant force mechanism for automatic feeding device of spring machine - Google Patents
Pull rod resetting constant force mechanism for automatic feeding device of spring machine Download PDFInfo
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- CN203541395U CN203541395U CN201320743322.6U CN201320743322U CN203541395U CN 203541395 U CN203541395 U CN 203541395U CN 201320743322 U CN201320743322 U CN 201320743322U CN 203541395 U CN203541395 U CN 203541395U
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- fixed pulley
- pull rod
- pull bar
- constant force
- coiling machine
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Abstract
The utility model relates to the technical field of spring manufacturing machines, in particular to a pull rod resetting constant force mechanism for an automatic feeding device of a spring machine. The pull rod resetting constant force mechanism comprises a pull rod and a fixed pulley. A counterpoise is hung on the fixed pulley. The pull rod and the axis of the fixed pulley are fixedly connected. Torque of the gravity of the counterpoise relative to the axis of the fixed pulley is equal to that of stress of the pull rod relative to the axis of the fixed pulley. A fixed pulley mechanism is adopted by the pull rod resetting constant force mechanism, the counterpoise is hung on the fixed pulley, the axis of the fixed pulley and the pull rod are fixedly connected, when the pull rod is stressed due to pulling of a wire rod, the fixed pulley is an equipotent arm mechanism, and the counterpoise is used for resetting the pull rod; the structure is simple, the stress of the pull rod keeps stationary, stressing of the wire rod keeps constant, the wire rod is free of deformation, and therefore the feeding quality of the spring machine is ensured; the requirement for feeding by the spring machine production can be met, and the production speed of the spring machine is matched.
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 wire range of coiling machine, the size of the pulling force of back-moving spring and spring wire wire diameter have close relationship, and different wire diameters need to be changed spring or carry additionally spring, both time-consuming, and often Yin Lali is inappropriate and cause defective products while producing spring to increase progressively again.
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, a kind of pull bar resetting constant force mechanisms of coiling machine automatic feeder is provided, adopt fixed pulley mechanism, with simple pull bar resetting constant force mechanisms, provide the required pulling force that resets, make 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 pull bar resetting constant force mechanisms of coiling machine automatic feeder, include pull bar and a fixed pulley, on fixed pulley, be hung with sliding weight of steelyard, the axle center of pull bar and fixed pulley is fixedly linked, and the moment in the axle center of the relative fixed pulley of gravity of sliding weight of steelyard equals the moment in the axle center of the stressed relative fixed pulley of pull bar.
Such scheme is further: on described fixed pulley, be also fixedly connected with and follow the shake-up arm that fixed pulley rotates, warning proximity switch and reset proximity switch are installed respectively by the limit place, two ends that touches arm beat.
The pull bar resetting constant force mechanisms that the utility model provides adopts certain pulley mechanism, on fixed pulley, be hung with sliding weight of steelyard, axle center and the pull bar of fixed pulley are fixedly linked, when pull bar is stressed because wire rod pulls, because fixed pulley is a kind of arm of force mechanism that waits, use sliding weight of steelyard that pull bar is resetted; Simple in structure, pull bar is fixed by force retaining, when coiling machine is produced spring, wire rod is pulled from feeding device, during the stressed rotary pulley angle of pull bar, because of the arm of force of pulley 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; Meet the requirement of coiling machine production feeding, coordinate the speed of production of coiling machine.
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 pull bar resetting constant force mechanisms 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: described pull bar resetting constant force mechanisms is certain pulley mechanism, has a fixed pulley 1, is hung with sliding weight of steelyard 3 on fixed pulley 1, and 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.
Specific works principle of the present utility model is as follows:
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.
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.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.Warning release mechanism has warning proximity switch 5, and warning proximity switch 5 connects the control circuit of automatic feeder, and warning proximity switch 5 moves when feeding device fault or speed exceed the limit velocity of feeding device, and realizing reports to the police stops feed; 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.When coiling machine is produced spring, wire rod is pulled from feeding device, the stressed drive fixed pulley 1 of pull bar 2 rotates, acceleration and deceleration cam 42 is followed fixed pulley 1 and is rotated, 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.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, and rotate fixed pulley 1 and drive pull bar 2 to reset with gravity by sliding weight of steelyard 3, acceleration and deceleration cam 42 is also followed fixed pulley 1 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.
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 (2)
1. the pull bar resetting constant force mechanisms of coiling machine automatic feeder, include pull bar (2), it is characterized in that: this pull bar resetting constant force mechanisms also has a fixed pulley (1), on fixed pulley (1), be hung with sliding weight of steelyard (3), pull bar (2) is fixedly linked with the axle center of fixed pulley (1), and the moment in the axle center of the relative fixed pulley of gravity (1) of sliding weight of steelyard (3) equals the moment in the axle center of the stressed relative fixed pulley of pull bar (1).
2. the pull bar resetting constant force mechanisms of coiling machine automatic feeder according to claim 1, it is characterized in that: on described fixed pulley (1), be also fixedly connected with and follow the shake-up arm (6) that fixed pulley (1) rotates, warning proximity switch (5) and reset proximity switch (7) are installed respectively by the limit place, two ends that touches arm (6) beat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743322.6U CN203541395U (en) | 2013-11-23 | 2013-11-23 | Pull rod resetting constant force mechanism for automatic feeding device of spring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743322.6U CN203541395U (en) | 2013-11-23 | 2013-11-23 | Pull rod resetting constant force mechanism for automatic feeding device of spring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541395U true CN203541395U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743322.6U Expired - Fee Related CN203541395U (en) | 2013-11-23 | 2013-11-23 | Pull rod resetting constant force mechanism for automatic feeding device of spring machine |
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| CN (1) | CN203541395U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801638A (en) * | 2015-04-13 | 2015-07-29 | 张家港江苏科技大学产业技术研究院 | Unwinding mechanism |
| CN114798987A (en) * | 2022-01-04 | 2022-07-29 | 汕头市连兴实业有限公司 | Induction type pay-off machine and control method thereof |
-
2013
- 2013-11-23 CN CN201320743322.6U patent/CN203541395U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801638A (en) * | 2015-04-13 | 2015-07-29 | 张家港江苏科技大学产业技术研究院 | Unwinding mechanism |
| CN104801638B (en) * | 2015-04-13 | 2016-06-15 | 张家港江苏科技大学产业技术研究院 | A kind of unreeling structure |
| CN114798987A (en) * | 2022-01-04 | 2022-07-29 | 汕头市连兴实业有限公司 | Induction type pay-off machine and control method thereof |
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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 |