Wire passing meter counting device for tungsten filament production

Abstract

The wire passing meter counting device for tungsten filament production comprises a meter counting assembly and a tensioning assembly, the rear end of a meter counting shaft rod is connected with an encoder through a coupler, the encoder is arranged on the back face of a support through an encoder mounting base, a tungsten filament is wound in a wheel groove in the outer side of a meter counting wheel by a whole circle, and the tensioning assembly is arranged on the outer side of the meter counting wheel. By utilizing the characteristics of high hardness, sagging resistance, thick crystal and the like of the tungsten filament, the tungsten filament can be wound on the meter counting wheel in a complete winding manner, continuous high efficiency and stability can be ensured in a long-time use process, the problem of wire loosening or friction force reduction is avoided, and the service life of the meter counting wheel is prolonged. According to the meter counting device, the encoder can rotate in a high-precision adaptive manner, meanwhile, the situation of meter counting errors caused by environmental dust is avoided, meanwhile, the maintenance time of the device is shortened, and the maintenance cost is saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tungsten wire metering, and specifically relates to a tungsten wire metering device for tungsten wire production. Background Art

[0002] Tungsten wire is generally drawn by various wire drawing dies. Except for a small amount used as heating material for high-temperature furnaces, heaters for electron tubes and reinforcement ribs for composite materials, most of it is used to make filaments of various incandescent lamps and halogen tungsten lamps and electrodes for gas discharge lamps.

[0003] In the existing tungsten wire production equipment, the wire counting device in the wire making process section generally adopts the common wire rope metering method that the controller reads the number of times the sensor is triggered by the detection object on the meter wheel and then converts it into the number of turns of the meter wheel per unit time, and then uses the known diameter of the meter wheel to calculate. In addition, the existing wire rope metering is only wound around a section of the arc of the meter wheel for at most half a circle. This structure mainly has the following problems:

[0004] 1: This structure counts by detecting triggers on the meter wheel or its axle through sensors. The number of such triggers is limited, generally 1-2 per circle, which results in low meter accuracy.

[0005] 2: This structure counts by detecting the trigger on the meter wheel or its axle through the sensor. This triggering method is easily affected by the environment. The sensor is prone to false triggering in a dusty environment, resulting in inaccurate meter counting.

[0006] 3. The rope that does not completely contact the counting wheel will bend, which will reduce the friction between the rope and the counting wheel. Utility Model Content

[0007] In order to solve the above problems, this paper proposes a wire-counting device for tungsten wire production, the metering device includes a metering assembly and a tensioning assembly, both of which are arranged above the support, the metering assembly includes a metering wheel, a metering shaft, a bearing seat and a coupling, the center of the metering wheel is plug-in with a metering shaft, the rear end of the metering shaft is connected to the encoder through a coupling, the encoder is arranged on the back of the support through an encoder mounting seat, the outer side of the metering shaft is provided with a bearing seat, the metering shaft is connected to the bearing seat through a locking nut, the tensioning assembly is connected to the support through an adjusting support rod, and the tensioning assembly includes a transfer shaft, a short shaft , a wire-passing wheel and a wire-passing bearing, the midline of the transverse cross-section of the wire-passing wheel and the midline of the transverse cross-section of the meter wheel are aligned with each other, a tungsten wire is wound in a full circle in the outer wheel groove of the meter wheel, and by utilizing the high hardness, anti-sagging ability and coarse crystal characteristics of the tungsten wire, the tungsten wire can be completely wound around the meter wheel, and continuous high efficiency and stability can be guaranteed during long-term use, and there will be no problems of derailment or reduced friction, which ensures that the encoder can adapt to the rotation of the meter wheel with high precision, while avoiding the situation of metering errors caused by environmental dust problems, and at the same time reducing the maintenance time of the device and saving maintenance costs.

[0008] The support is in the shape of an L-shaped vertical plate, with a fixing strip hole provided on the surface of the bottom plate of the support, a metering assembly is provided vertically penetrating through the middle of the upper part of the vertical plate of the support, an arc-shaped adjustment groove is provided on the upper right corner surface of the vertical plate of the support, an adjustment support rod is fixedly provided on the back of the arc-shaped adjustment groove, and the outer end of the adjustment support rod is vertically connected to the adapter shaft vertically in the longitudinal direction. The metering assembly and the tensioning assembly are assembled and combined on the same surface through the support, which is convenient for the tensioning and fixing of the tensioning assembly, and ensures that the tungsten wire can move smoothly enough in the device.

[0009] The meter-counting shaft rod is in the shape of a cylindrical rotating rod, one end of which is fixedly connected to the meter-counting wheel via a flat key, the outer side of which is connected to the bearing seat via a meter-counting bearing and a bushing, the other end of which is connected to the encoder via a coupling, one end of the bearing seat being connected to the support via a flange surface, and the other end of the bearing seat being sealed with an end cover.

[0010] The meter wheel and the wire wheel are both winding groove wheels, the outer groove of the meter wheel is smaller than the outer groove of the wire wheel, the center of the meter wheel is connected to the meter shaft rod through a flat key, and the wire wheel is connected to the short shaft through a wire bearing.

[0011] The short shaft is in the shape of a cylindrical shaft, with a connecting thread on the outside of one end of the short shaft and a wire wheel on the other end. The short shaft is connected to the adapter shaft through the connecting thread, one end of the adapter shaft is fixedly connected to the adjusting support rod, and an internal thread is provided on the inner side of the other end surface of the adapter shaft, and the adapter shaft is connected to the short shaft through the internal thread.

[0012] Beneficial effects:

[0013] By utilizing the high hardness, anti-drooping ability and coarse crystal characteristics of tungsten wire, the tungsten wire can be completely wound around the meter wheel, and it can be guaranteed to be continuously efficient and stable during long-term use without problems such as de-wirement or reduced friction. This ensures that the encoder can adapt to the rotation of the meter wheel with high precision, while avoiding meter errors caused by environmental dust problems, reducing maintenance time for the device and saving maintenance costs.

[0014] This structure changes the sensor counting method to the encoder detecting the rotation angle method. Because the encoder needs to rotate stably for a long time to ensure the accuracy of the signal, the encoder can be adapted to the tungsten wire meter, which improves the tungsten wire meter accuracy. This structure eliminates the sensor, avoids meter errors caused by large environmental dust, and saves maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a wire metering device used in tungsten wire production;

[0016] Figure 2 This is a cross-sectional view of a meter wheel of a wire-passing metering device used in tungsten wire production;

[0017] Figure 3 This is a cross-sectional view of a wire passing wheel of a wire passing meter device used in tungsten wire production;

[0018] In the figure; 1, support, 2, meter wheel, 3, encoder, 4, encoder mounting seat, 5, adjusting support rod, 6, short shaft, 7, line wheel, 8, line bearing, 9, meter wheel shaft, 10, bearing seat, 11, end cover, 12, meter bearing, 13, bushing, 14, coupling, 15, locking nut, 16, flat key, 17, adapter shaft, 18, meter shaft rod. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0020] Support 1, meter wheel 2, encoder 3, encoder mounting seat 4, adjusting support rod 5, short shaft 6, line wheel 7, line bearing 8, meter wheel shaft 9, bearing seat 10, end cover 11, meter bearing 12, bushing 13, coupling 14, locking nut 15, flat key 16, adapter shaft 17, meter shaft rod 18.

[0021] like Figure 1 , 2 , as shown in 3;

[0022] A wire-counting device for tungsten wire production, the metering device comprising a metering assembly and a tensioning assembly, both of which are arranged above a support 1, the metering assembly comprising a metering wheel 2, a metering shaft 18, a bearing seat 10 and a coupling 14, the metering wheel 2 is centrally plugged with a metering shaft 18, the rear end of the metering shaft 18 is connected to an encoder 3 through a coupling, the encoder 3 is arranged on the back of the support 1 through an encoder mounting seat 4, the outer side of the metering shaft 18 is provided with a bearing seat 10, the metering shaft 18 is connected to the shaft through a locking nut 15 The support 10 is connected, the tensioning assembly is connected to the support 1 through an adjustment support rod, the tensioning assembly includes an adapter shaft 17, a short shaft 6, a wire wheel 7 and a wire bearing 8, the midline of the transverse section of the wire wheel 7 and the midline of the transverse section of the meter wheel 2 are aligned with each other, and a tungsten wire is wound in a full circle in the outer wheel groove of the meter wheel 2. The shape of the support 1 is an L-shaped vertical plate, and the surface of the bottom plate of the support 1 is provided with a fixing strip hole, and a meter assembly is longitudinally penetrated in the middle of the vertical plate above the support 1, and an arc-shaped adjustment groove is provided on the upper right corner surface of the vertical plate of the support 1. The arc-shaped adjustment groove is provided. An adjusting support rod 5 is fixedly provided on the back of the node groove, and the outer end of the adjusting support rod 5 is vertically connected to the adapter shaft 17 in the longitudinal direction. The meter shaft rod 18 is in the shape of a cylindrical rotating rod, and one end of the meter shaft rod 18 is fixedly connected to the meter wheel 2 through a flat key 16. The outer side of the meter rod is connected to the bearing seat 10 through a meter bearing 12 and a sleeve 13. The other end of the meter shaft rod 18 is connected to the encoder 3 through a coupling 14. One end of the bearing seat 10 is connected to the support 1 through a flange surface, and the other end of the bearing seat 10 is sealed with an end cover 11. The meter wheel 2 and the wire wheel 7 are evenly connected. The outer groove of the winding groove wheel and the meter wheel 2 is smaller than the outer groove of the wire wheel 7. The center of the meter wheel 2 is connected to the meter shaft 18 through a flat key 16. The wire wheel 7 is connected to the short shaft 6 through a wire bearing 8. The short shaft 6 is in the shape of a cylindrical shaft. A connecting thread is provided on the outer side of one end of the short shaft 6. The wire wheel 7 is provided on the other end of the short shaft 6. The short shaft 6 is connected to the adapter shaft 17 through the connecting thread. One end of the adapter shaft 17 is fixedly connected to the adjusting support rod 5. The inner side of the other end face of the adapter shaft 17 is provided with an internal thread. The adapter shaft 17 is connected to the short shaft 6 through the internal thread.

[0023] Implementation examples;

[0024] When in use, after the tungsten wire is wound around the meter wheel 2 for a complete circle, it enters the wire-reeling link through the wire wheel 7. During the movement, the tungsten wire is completely wound around the meter wheel 2, so it can drive the meter wheel 2 to rotate efficiently and stably for a long time, and is transmitted to the encoder 3 shaft through the meter wheel shaft 9 and the coupling 14. The encoder 3 needs to rotate stably for a long time to ensure the accuracy of the signal. The controller reads the signal of the encoder 3 and then calculates the length of the tungsten wire passing through the meter wheel 2 in combination with the diameter of the meter wheel 2.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire-counting device for tungsten wire production, the device comprising a metering assembly and a tensioning assembly, both of which are arranged above a support, the metering assembly comprising a metering wheel, a metering shaft, a bearing seat and a coupling, characterized in that: The center of the meter wheel is plugged in with a meter shaft, the rear end of the meter shaft is connected to the encoder through a coupling, the encoder is arranged on the back of the support through an encoder mounting seat, the outer side of the meter shaft is provided with a bearing seat, the meter shaft is connected to the bearing seat through a locking nut, the tensioning assembly is connected to the support through an adjustment support rod, the tensioning assembly includes a transfer shaft, a short shaft, a wire wheel and a wire bearing, the transverse cross-section center line of the wire wheel and the transverse cross-section center line of the meter wheel are aligned with each other, and a tungsten wire is wound in a full circle in the outer wheel groove of the meter wheel.

2. A tungsten wire metering device for tungsten wire production according to claim 1, characterized in that: The support is in the shape of an L-shaped vertical plate, a fixing strip hole is provided on the surface of the bottom plate of the support, a meter component is provided vertically penetrating the middle part above the vertical plate of the support, an arc-shaped adjustment groove is provided on the upper right corner surface of the vertical plate of the support, an adjustment rod is fixed on the back of the arc-shaped adjustment groove, and the outer end of the adjustment rod is vertically connected to the adapter shaft vertically.

3. A tungsten wire metering device for tungsten wire production according to claim 1, characterized in that: The meter-counting shaft rod is in the shape of a cylindrical rotating rod, one end of which is fixedly connected to the meter-counting wheel via a flat key, the outer side of the meter-counting shaft rod is connected to the bearing seat via a meter-counting bearing and a bushing, the other end of the meter-counting shaft rod is connected to the encoder via a coupling, one end of the bearing seat is connected to the support via a flange surface, and the other end of the bearing seat is sealed with an end cover.

4. A tungsten wire metering device for tungsten wire production according to claim 1, characterized in that: The meter wheel and the wire wheel are both winding groove wheels, the outer groove of the meter wheel is smaller than the outer groove of the wire wheel, the center of the meter wheel is connected to the meter shaft rod through a flat key, and the wire wheel is connected to the short shaft through a wire bearing.

5. The tungsten wire metering device for tungsten wire production according to claim 1, characterized in that: The short shaft is in the shape of a cylindrical shaft, a connecting thread is arranged on the outer side of one end of the short shaft, a wire passing wheel is arranged on the other end of the short shaft, and the short shaft is connected to the adapter shaft through the connecting thread.

6. A tungsten wire metering device for tungsten wire production according to claim 1, characterized in that: One end of the transfer shaft is fixedly connected to the adjusting support rod, and the inner side of the other end surface of the transfer shaft is provided with an internal thread, and the transfer shaft is connected to the short shaft through the internal thread.

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