An improved multi-line active pay-off device

Abstract

The utility model discloses an improved multi-wire active pay-off device, comprising: a frame, which is connected to the wire drum through a transmission mechanism; the copper wire on the wire drum is paid out through a tension wire storage mechanism; the tension wire storage mechanism is fixed on the frame; the tension wire storage mechanism comprises a first wire guide roller, a second wire guide roller, a third wire guide roller, a fourth wire guide roller, a fifth wire guide roller and a sixth wire guide roller which are alternately opened up and down; the second wire guide roller and the fourth wire guide roller are fixed on a slider; the slider moves up and down along a linear guide rail; the up and down movement range of the slider is controlled by a tension control device; the tension control device comprises a wire break alarm proximity switch and a displacement sensor fixed to the frame, the wire break alarm proximity switch is arranged at the bottom of the slider stroke; the signaling board is fixed to the slider and inputs the signal into the displacement sensor. The utility model can make multiple copper wires have the same tension during the pay-off process, which brings great convenience to the subsequent processing.

Description

Technical Field

[0001] The utility model relates to the field of core wire cable manufacturing, in particular to an improved multi-wire active pay-off device. Background Art

[0002] Wire twisting machine is a commonly used equipment in cable production. It is a machine that twists several single (strand) wires into strands or cores at one time with the same twist direction and pitch.

[0003] In the prior art, during the production of copper wire bundles, a wire-paying gun is used to control the wire-paying tension, but it is difficult to ensure that each single wire has the same tension. Due to the uneven tension, the bundle is prone to burrs, etc., which brings great difficulties to subsequent production. Therefore, how to make each single wire have the same tension has become a difficult problem that researchers have to consider.

[0004] In view of the shortcomings of the existing technology, a multi-wire active pay-off device for a stranding machine has been developed, which has a reasonable design, simple structure, easy operation, and can make multiple copper wires be subjected to the same tension during the pay-off process, thus bringing great convenience to subsequent processing, and has achieved ideal results. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide an improved multi-wire active pay-off device, which can make multiple copper wires have the same tension during the pay-off process, thus bringing greater convenience to subsequent processing.

[0006] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0007] An improved multi-line active pay-off device, comprising:

[0008] A frame, the frame is connected to a wire reel through a transmission mechanism;

[0009] The copper wire on the wire drum is released through a tension wire storage mechanism;

[0010] The tension wire storage mechanism is fixed on the frame;

[0011] The tension wire storage mechanism comprises a first wire guide roller, a second wire guide roller, a third wire guide roller, a fourth wire guide roller, a fifth wire guide roller and a sixth wire guide roller which are alternately arranged up and down;

[0012] The second wire-passing guide roller and the fourth wire-passing guide roller are fixed on the slider;

[0013] The slide block moves up and down along the linear guide rail;

[0014] The up and down movement range of the slider is controlled by a tension control device;

[0015] The tension control device comprises a wire break alarm proximity switch and a displacement sensor fixed to the frame, and the wire break alarm proximity switch is arranged at the bottom of the slider stroke;

[0016] A signaling plate is fixed to the slider and inputs the signal into the displacement sensor.

[0017] In a preferred embodiment of the present invention, the first wire passing guide roller, the second wire passing guide roller, the third wire passing guide roller, the fourth wire passing guide roller, the fifth wire passing guide roller and the sixth wire passing guide roller are all provided with rotating bearings.

[0018] In a preferred embodiment of the present invention, the movement of the slider is driven by a tension cylinder, and a piston rod of an output shaft of the tension cylinder is connected to the slider.

[0019] In a preferred embodiment of the present invention, the tension cylinder is supplied with gas through a gas storage tank.

[0020] In a preferred embodiment of the present invention, the displacement sensor is connected to an electronic control system in the tension control device.

[0021] In a preferred embodiment of the present utility model, the transmission mechanism includes an active mechanism and a passive mechanism;

[0022] The active mechanism comprises a transmission motor, the transmission motor is connected to the main transmission shaft through a reducer and an active top, and the main transmission shaft is positioned and installed with the center of the wire drum through a top and a pull pin;

[0023] The passive mechanism comprises a supporting shaft fixed to the frame, the supporting shaft is installed on the frame through a sliding bearing and performs axial reciprocating motion along the frame;

[0024] The front end of the support shaft is connected to the passive top through a rolling bearing;

[0025] The movement of the support shaft is controlled by a slave cylinder, which is controlled by a piston rod on the output shaft of the slave cylinder.

[0026] In a preferred embodiment of the utility model, a pilot air-controlled one-way valve is provided in the holding circuit of the slave cylinder, and compressed air can only enter but not exit in the holding state. Only when the wire reel is released, the pilot air-controlled one-way valve is ventilated and opened.

[0027] In a preferred embodiment of the utility model, a second wire break alarm proximity switch is provided at the holding position of the passive top, and the holding position of the passive top is monitored by the second wire break alarm proximity switch.

[0028] The beneficial effects of the utility model are:

[0029] It effectively avoids the uneven force during the pay-off process caused by using a pay-off gun to control the pay-off tension, and can make multiple copper wires experience the same tension during the pay-off process, which brings great convenience to subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0031] Figure 2 The structure of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] like Figure 1 An improved multi-wire active pay-off device is shown, which includes a frame 10, and the frame 10 is transmission-connected to a wire drum 20 via a transmission mechanism.

[0035] The transmission mechanism includes an active mechanism and a passive mechanism. The active mechanism includes a transmission motor 51. The transmission motor 51 is connected to the main transmission shaft 53 through a reducer 52 and an active top 50. The main transmission shaft 53 is installed to the center of the wire drum 20 through a top 54 and a pull pin 55. Specifically, the transmission motor 51 is connected to the input shaft of the reducer 52, and the main transmission shaft 53 is connected to the output shaft of the reducer 52. The top 54 and the pull pin 55 are fixed to the main transmission shaft 53. The top 54 is used for center positioning of the wire drum 20, and the pull pin 55 is used for driving the wire drum 20.

[0036] The passive mechanism includes a support shaft 62 fixed to the frame 10. The support shaft 62 is installed on the frame 10 through a sliding bearing and performs axial reciprocating motion along the frame 10. The front end of the support shaft 62 is connected to the passive top 61 through a rolling bearing.

[0037] The movement of the support shaft 62 is controlled by the slave cylinder 63 , specifically, by a piston rod on the output shaft of the slave cylinder 63 .

[0038] A pilot-operated pneumatic one-way valve is arranged in the holding circuit of the slave cylinder 63. In the holding state, compressed air can only enter but not exit. Only when the wire drum 20 is released, the pilot-operated pneumatic one-way valve is opened for ventilation.

[0039] Avoid sudden power outages or gas outages during the wire-laying process, which may cause the high-speed rotating wire reel to fly out of control and cause production safety accidents.

[0040] The holding position of the passive top 61 is provided with a second wire break alarm proximity switch 64 , and the holding position of the passive top 61 is monitored by the second wire break alarm proximity switch 64 .

[0041] The copper wire on the wire drum 20 is released through a tension wire storage mechanism 30, which is fixed on the frame 10. The tension wire storage mechanism 30 includes a first wire guide roller 31, a second wire guide roller 32, a third wire guide roller 33, a fourth wire guide roller 34, a fifth wire guide roller 35 and a sixth wire guide roller 36 which are alternately opened up and down.

[0042] The second wire guide roller 32 and the fourth wire guide roller 34 are fixed on a slider 38 , and the slider 38 moves up and down along a linear guide rail 39 . The up and down movement range of the slider 38 is controlled by a tension control device 40 .

[0043] The tension control device 40 includes a wire break alarm proximity switch 41 and a displacement sensor 43 fixed to the frame 10. The wire break alarm proximity switch 41 is set at the bottom of the stroke of the slider 38. The signal sending plate 42 is fixed to the slider 38 and inputs the signal into the displacement sensor 43.

[0044] The first wire passing guide roller 31, the second wire passing guide roller 32, the third wire passing guide roller 33, the fourth wire passing guide roller 34, the fifth wire passing guide roller 35 and the sixth wire passing guide roller 36 are all provided with rotating bearings and can rotate independently.

[0045] The movement of the slider 38 is driven by the tension cylinder 37, and the piston rod of the output shaft of the tension cylinder 37 is connected to the slider 38. The tension cylinder 37 is supplied with air through the air storage tank 70. The influence of the pressure fluctuation of the air source on the tension can be effectively avoided; according to the pulley principle, the number of winding tracks of the utility model is 4. The displacement sensor 43 is connected to the electronic control system 80 in the tension control device 40.

[0046] Because of the above structure, the working principle of the utility model is as follows:

[0047] The wire reel 20 is supported by the passive top 61 by the cylinder 63 in the passive top 61. The tops are all conical, which ensures the concentricity of the wire reel and the transmission shaft. A pilot air-controlled one-way valve is set in the supporting circuit of the cylinder 63. In the supporting state, compressed air can only enter but not exit. Only when the wire reel 20 is released, the pilot air-controlled one-way valve is opened. The proximity switch 64 monitors whether the passive top holds the wire reel in place. The above three aspects can ensure the stability and safety of the wire reel during the unwinding process.

[0048] When the motor 51 is working, the main transmission shaft 53 is driven to rotate through the reduction gear 52, and the wire drum 20 held by two top points is driven to rotate by the pin 55, so that the multiple copper wires wound on the wire drum 20 are released. The multiple copper wires are passed around the first to sixth wire guide rollers in turn. The third to sixth wire guide rollers are guide rollers with wire groove structures. The multiple copper wires are gradually separated into single wires and finally released by the sixth wire guide roller 36.

[0049] When a plurality of copper wires pass through the second wire guide roller 32 and the fourth wire guide roller 34 which are installed in groups on the slider 38 , each copper wire is subjected to equal tension due to the action of the same tension cylinder 37 .

[0050] When the speed of releasing and taking up the line is not synchronized, the position of the slider 38 will be changed due to the action of the tension cylinder 37. The displacement sensor 43 transmits the actual position of the slider 38 measured by the signaling board 42 installed on the slider 38, and the data measured by the displacement sensor 43 are transmitted to the electronic control system 80, and the electronic control system 80 adjusts the speed of the motor 51 after calculation.

[0051] The number of winding tracks of the present invention is 4, and the up and down fluctuation amount of the slider 38 is only one quarter of the line speed difference. The up and down fluctuation amount of the slider 38 is understood as the tension fluctuation of the entire wire harness through a mathematical model.

[0052] Thereby, a balanced pay-off tension is achieved, the magnitude of which is determined by the air pressure of the tension cylinder 37. The tension storage winding of the utility model is 4-pass, and the tension error is only one-fourth of the error of the air pressure adjustment.

[0053] The tension cylinder 37 is fed with air after passing through the air storage tank 70, which can effectively avoid the fluctuation of the external air source pressure, and further ensure that the tensions of the multiple copper wires are the same during the pay-off process.

Claims

1. An improved multi-line active pay-off device, characterized in that: include: A frame, the frame is connected to a wire reel through a transmission mechanism; The copper wire on the wire drum is released through a tension wire storage mechanism; The tension wire storage mechanism is fixed on the frame; The tension wire storage mechanism comprises a first wire guide roller, a second wire guide roller, a third wire guide roller, a fourth wire guide roller, a fifth wire guide roller and a sixth wire guide roller which are alternately arranged up and down; The second wire-passing guide roller and the fourth wire-passing guide roller are fixed on the slider; The slide block moves up and down along the linear guide rail; The up and down movement range of the slider is controlled by a tension control device; The tension control device comprises a wire break alarm proximity switch and a displacement sensor fixed to the frame, and the wire break alarm proximity switch is arranged at the bottom of the slider stroke; A signaling plate is fixed to the slider and inputs the signal into the displacement sensor.

2. An improved multi-line active pay-off device as claimed in claim 1, characterized in that: The first wire passing guide roller, the second wire passing guide roller, the third wire passing guide roller, the fourth wire passing guide roller, the fifth wire passing guide roller and the sixth wire passing guide roller are all provided with rotating bearings.

3. An improved multi-line active pay-off device as claimed in claim 1, characterized in that: The movement of the slider is driven by a tension cylinder, and a piston rod of an output shaft of the tension cylinder is connected to the slider.

4. An improved multi-line active pay-off device as claimed in claim 3, characterized in that: The tension cylinder is supplied with gas through an air storage tank.

5. An improved multi-line active pay-off device as claimed in claim 1, characterized in that: The displacement sensor is connected to the electric control system in the tension control device.

6. An improved multi-line active pay-off device as claimed in claim 1, characterized in that: The transmission mechanism includes an active mechanism and a passive mechanism; The active mechanism comprises a transmission motor, the transmission motor is connected to the main transmission shaft through a reducer and an active top, and the main transmission shaft is positioned and installed with the center of the wire drum through a top and a pull pin; The passive mechanism comprises a supporting shaft fixed to the frame, the supporting shaft is installed on the frame through a sliding bearing and performs axial reciprocating motion along the frame; The front end of the support shaft is connected to the passive top through a rolling bearing; The movement of the support shaft is controlled by a slave cylinder, which is controlled by a piston rod on the output shaft of the slave cylinder.

7. An improved multi-line active pay-off device as claimed in claim 6, characterized in that: A pilot-operated pneumatic one-way valve is arranged in the holding circuit of the slave cylinder. In the holding state, compressed air can only enter but not exit. Only when the wire reel is released, the pilot-operated pneumatic one-way valve is ventilated and opened.

8. An improved multi-line active pay-off device as claimed in claim 6, characterized in that: The holding position of the passive top is provided with a second wire break alarm proximity switch, and the holding position of the passive top is monitored by the second wire break alarm proximity switch.

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