Wire releasing mechanism

Abstract

The utility model relates to the technical field of wire drawing machines, and discloses a wire releasing mechanism, which comprises a rack, a wire releasing wheel, a driving part, a wire releasing mechanism and a wire releasing mechanism, the eccentric wheel is rotatably arranged on the rack; the swing rod is connected with the eccentric wheel; the guide wheel is rotatably arranged on the swing rod; the displacement detector is arranged on the rack and abuts against the outer peripheral surface of the eccentric wheel; the controller is electrically connected with the displacement detector and the driving piece; and a wire material is wound around the guide wheel after extending out of the wire releasing wheel. According to the invention, the problem of how to more accurately control the wire releasing tension of the wire drawing machine is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wire drawing machine technical field especially relates to a wire releasing mechanism. BACKGROUND

[0002] The wire drawing machine is a kind of mechanical equipment for processing metal or plastic material into thin wire.The metal wire drawing machine is mainly used for processing metal wire, such as high, medium and low carbon steel wire, stainless steel wire, copper wire, aluminum alloy wire, tungsten wire and the like.The wire drawing machine mainly includes wire releasing, stretching and wire collecting three components.

[0003] In the wire drawing process, tension control is very important.Generally, the tension of wire collecting is controlled by wire collecting motor, and friction mechanism is used to increase the counter pull of wire material in wire releasing component, so as to realize passive wire releasing of wire material.

[0004] However, the friction force of friction mechanism on wire material fluctuates constantly, cannot guarantee the stability of friction force, so that the tension of wire releasing cannot be accurately controlled, thereby affecting the quality of product. SUMMARY

[0005] The technical problem to be solved by the utility model is: how to more accurately control the tension of wire releasing of wire drawing machine.

[0006] In order to solve the above technical problem, the utility model provides a wire releasing mechanism, which comprises: rack, the rack is equipped with wire releasing wheel and driving part for driving the rotation of the wire releasing wheel;Eccentric wheel, rotatably arranged on the rack;Swing lever, connected with the eccentric wheel;Guide wheel, rotatably arranged on the swing lever;Displacement detector, arranged on the rack and abutting against the outer periphery of the eccentric wheel;Controller, electrically connected with the displacement detector and the driving part respectively;Wherein, wire material extends from the wire releasing wheel and passes through the guide wheel.

[0007] Further, the guide wheel is located below the wire releasing wheel.

[0008] Further, the eccentric wheel is provided with a rotating shaft, and the eccentric wheel is rotatably connected with the rack through the rotating shaft.

[0009] Further, one end of the swing lever is fixedly connected with the rotating shaft, and the other end of the swing lever is connected with the guide wheel.

[0010] Further, two limit blocks are arranged on the rack in an upper and lower relationship, and the swing lever can swing back and forth between the two limit blocks.

[0011] Further, the swing lever is provided with a counterweight.

[0012] Further, the swing lever is provided with an adjusting groove extending along the swing lever, and the counterweight is arranged in the adjusting groove.

[0013] Further, the displacement detector comprises a photoelectric switch and a detection plate.

[0014] The wire placing mechanism has the beneficial effects that the wire placing wheel is used for placing the wire material to be stretched, the driving member drives the wire placing wheel to rotate to place the wire, the wire material extends out from the wire placing wheel, passes through the guide wheel, and is then transmitted to other components of the wire drawing machine; under the gravity of the swing rod and the guide wheel, the guide wheel has a certain tension on the wire material passing therethrough, so that the wire material has a certain tension, when the tension of the wire material changes, the swing rod swings, so that the swing rod drives the eccentric wheel to rotate, the eccentric wheel triggers the displacement detector when rotating, the displacement detector can send a detection signal to the controller, and the controller can adjust the rotating speed of the driving member driving the wire placing wheel according to the detection signal, so as to adjust the tension of the wire material to a preset value, and more accurate control of the tension of the wire placing is realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic view of the wire placing mechanism shown in the embodiment of the utility model;

[0016] Figure 2 is a side view of the wire placing mechanism shown in the embodiment of the utility model;

[0017] Figure 3 is a principle diagram of the wire placing of the wire placing mechanism shown in the embodiment of the utility model;

[0018] Figure 4 is a structure schematic view of the swing rod and the counterweight shown in the embodiment of the utility model.

[0019] Wherein, 1- rack, 2- wire placing wheel, 3- driving member, 4- eccentric wheel, 5- swing rod, 51- adjusting groove, 6- guide wheel, 7- displacement detector, 71- photoelectric switch, 72- detection plate, 8- wire material, 9- rotating shaft, 10- limit block, 20- counterweight. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model will be described in further detail in combination with the drawings and the embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0021] In the description of the utility model, it should be understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like in the utility model are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] As shown in Figures 1 to 3 The utility model discloses a wire unwinding mechanism, including frame 1, eccentric wheel 4, swing bar 5, guide pulley 6, displacement detector 7 and controller.

[0024] Frame 1 is equipped with wire unwinding wheel 2 and the driving element 3 for driving wire unwinding wheel 2 to rotate, and the driving element 3 can be a motor, and the wire unwinding wheel 2 is used to place the wire material 8 to be stretched, and the wire material 8 is wound on the wire unwinding wheel 2, and the wire unwinding wheel 2 can be an I-shaped wheel.

[0025] The eccentric wheel 4 is rotatably arranged on the frame 1, that is, the eccentric wheel 4 can rotate relative to the frame 1. The swing bar 5 is connected with the eccentric wheel 4. The guide pulley 6 is rotatably arranged on the swing bar 5, that is, the guide pulley 6 can swing relative to the swing bar 5. The displacement detector 7 is arranged on the frame 1 and abuts against the outer periphery of the eccentric wheel 4, and when the eccentric wheel 4 rotates, the outer periphery thereof can drive the displacement detector 7 to move, thereby triggering the displacement detector 7. The controller is electrically connected with the displacement detector 7 and the driving element 3 respectively, and is used for receiving the displacement detector 7 and controlling the rotating speed of the driving element 3, and the controller can be a single-chip microcomputer, an industrial computer, a programmable controller or an upper computer. Among them, the wire material 8 extends out from the wire unwinding wheel 2 and passes through the guide pulley 6.

[0026] Based on the above scheme, the wire placing wheel 2 is used to place the wire material 8 to be stretched, the driving member 3 drives the wire placing wheel 2 to rotate to place the wire, the wire material 8 extends out from the wire placing wheel 2 and then passes through the guide wheel 6 and is then transmitted to other components of the wire drawing machine; under the gravity of the swing lever 5 and the guide wheel 6, the guide wheel 6 has a certain tension on the wire material 8 passing therethrough, so that the wire material 8 has a certain tension, when the tension of the wire material 8 changes, the swing lever 5 swings, so that the swing lever 5 drives the eccentric wheel 4 to rotate, the eccentric wheel 4 triggers the displacement detector 7 when rotating, the displacement detector 7 can send a detection signal to the controller, and the controller can adjust the rotating speed of the driving member 3 driving the wire placing wheel 2 according to the detection signal, so as to adjust the tension of the wire material 8 to a preset value, and more accurate control of the tension of wire placing is realized.

[0027] In some embodiments, as shown in Figures 1 to 3 , the guide wheel 6 is located below the wire placing wheel 2, the wire material 8 extends out from the wire placing wheel 2 and then passes through the guide wheel 6 from below, and the guide wheel 6 has a downward pressure on the wire material 8, which is generated by the gravity of the swing lever 5 and the guide wheel 6.

[0028] In some embodiments, as shown in Figures 1 to 3 , the eccentric wheel 4 is provided with a rotating shaft 9, the rotating shaft 9 is arranged along the rotating axis of the eccentric wheel 4, and the eccentric wheel 4 is rotationally connected to the rack 1 through the rotating shaft 9, that is, the eccentric wheel 4 is fixedly connected to the rotating shaft 9, and the rotating shaft 9 is rotationally connected to the rack 1.

[0029] In some embodiments, one end of the swing lever 5 is fixedly connected to the rotating shaft 9, and the other end of the swing lever 5 is connected to the guide wheel 6.

[0030] In some embodiments, as shown in Figure 2 and Figure 3 , the rack 1 is provided with two limit blocks 10 arranged oppositely, and the swing lever 5 can swing back and forth between the two limit blocks 10. The two limit blocks 10 are used to limit the swing range of the swing lever 5.

[0031] In some embodiments, the swing lever 5 is provided with a counterweight 20, and the gravity of the counterweight 20 can increase the pressure on the wire material 8. By arranging counterweights 20 of different weights, different tensions can be generated on the wire material 8, and corresponding counterweights 20 can be arranged for different types of wire material 8.

[0032] In some embodiments, as shown in Figure 4 , the swing lever 5 is provided with an adjusting groove 51 extending along the swing lever 5, and the counterweight 20 is arranged in the adjusting groove 51. Specifically, the adjusting groove 51 penetrates the swing lever 5, and the counterweight 20 can be locked to the swing lever 5 by passing through the adjusting groove 51. The bolt can be threadedly connected with the counterweight 20, and after the bolt is loosened, the position of the counterweight 20 can be adjusted along the direction of the adjusting groove 51, so as to adjust the size of the force of the guide wheel 6 on the wire material 8.

[0033] In some embodiments, the displacement detector 7 comprises a photoelectric switch 71 and a detection plate 72. Specifically, the photoelectric switch 71 and the detection plate 72 are oppositely arranged, one of the photoelectric switch 71 and the detection plate 72 is fixedly connected with the rack 1, and the other is slidingly connected with the rack 1 and abuts against the eccentric wheel 4. For example, the photoelectric switch 71 is slidingly connected with the rack 1, the detection plate 72 is fixedly connected with the rack 1, and the eccentric wheel 4 drives the photoelectric switch 71 to move up and down when rotating, thereby triggering the photoelectric switch 71.

[0034] Specifically, the eccentric wheel 4 can be arranged such that when the eccentric wheel 4 rotates clockwise, the photoelectric switch 71 is driven to move upward, and when the eccentric wheel 4 rotates counterclockwise, the photoelectric switch 71 is driven to move downward; or when the eccentric wheel 4 rotates clockwise, the photoelectric switch 71 is driven to move downward, and when the eccentric wheel 4 rotates counterclockwise, the photoelectric switch 71 is driven to move upward. Thus, whether the tension of the wire 8 is too large or too small can be determined according to the moving direction of the photoelectric switch 71, and the rotating speed of the driving member 3 is adjusted so that the photoelectric switch 71 is at a preset position.

[0035] The above description is only the preferred embodiments of the present application, and it should be pointed out that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A yarn feeding mechanism characterized by comprising: The application relates to a wire feeding device, which comprises: a rack, a wire feeding wheel and a driving element for driving the wire feeding wheel to rotate are arranged on the rack; an eccentric wheel rotatably arranged on the rack; a swing rod connected with the eccentric wheel; a guide wheel rotatably arranged on the swing rod; a displacement detector arranged on the rack and abutting against the outer circumferential surface of the eccentric wheel; a controller electrically connected with the displacement detector and the driving element respectively; wherein the wire is extended from the wire feeding wheel and passes through the guide wheel.

2. The yarn feeding mechanism of claim 1, wherein The guide wheel is arranged below the wire feeding wheel.

3. The yarn feeding mechanism of claim 1, wherein The eccentric wheel is rotatably connected with the rack through a rotating shaft.

4. The yarn feeding mechanism of claim 3, wherein One end of the swing rod is fixedly connected with the rotating shaft, and the other end of the swing rod is connected with the guide wheel.

5. The yarn feeding mechanism of claim 1, wherein Two limiting blocks are arranged on the rack in an up-down opposite mode, and the swing rod can swing back and forth between the two limiting blocks.

6. The yarn feeding mechanism of claim 1, wherein A counterweight is arranged on the swing rod.

7. The yarn feeding mechanism of claim 6, wherein An adjusting groove extending along the swing rod is arranged on the swing rod, and the counterweight is arranged in the adjusting groove.

8. The yarn feeding mechanism of claim 1, wherein, The displacement detector comprises a photoelectric switch and a detection plate.

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