阅读说明：本技术 一种包带机主轴结构及其定时中断控制方法 (Main shaft structure of taping machine and timing interruption control method thereof ) 是由 叶辉 周建运 燕启 叶沪伟 杨小斌 丁仕燕 于 2021-10-21 设计创作，主要内容包括：本发明公开了一种包带机主轴结构及其定时中断控制方法。该主轴结构包括基板、主传动装置、送带装置和包带装置。本发明的主轴结构在放带装置和绕带装置之间增加送带装置,使得放带张力和绕带张力相互独立,并可单独调节绕带张力；麦拉电机直接驱动麦拉移动,传动链短、传动误差小；通过旋转编码器测量主轴的旋转角度,从而精确控制发向麦拉电机驱动器的脉冲数,无累积误差；主轴直接采用角位移测量、麦拉电机采用角位置控制,比传统的转速测量、转速控制精度更高,响应速度更快；通过每间隔若干毫秒进行一次定时中断,即使主轴的转速产生大扰动,麦拉电机也可以及时跟随主轴的转动而驱动麦拉移动,且可定量调整。(The invention discloses a main shaft structure of a taping machine and a timing interrupt control method thereof. The main shaft structure comprises a substrate, a main transmission device, a belt conveying device and a belt wrapping device. According to the spindle structure, the belt feeding device is additionally arranged between the belt releasing device and the belt winding device, so that the belt releasing tension and the belt winding tension are independent from each other, and the belt winding tension can be independently adjusted; the Mylar motor directly drives the Mylar to move, so that the transmission chain is short and the transmission error is small; the rotation angle of the spindle is measured through the rotary encoder, so that the number of pulses sent to a Mylar motor driver is accurately controlled, and no accumulated error exists; the main shaft directly adopts angular displacement measurement, and the Mylar motor adopts angular position control, so that the precision is higher and the response speed is higher than that of the traditional rotating speed measurement and rotating speed control; the Maillard motor can drive the Maillard to move along with the rotation of the main shaft in time even if the rotating speed of the main shaft generates large disturbance by carrying out timing interruption once every several milliseconds, and can be adjusted quantitatively.)

1. The utility model provides a belting machine main shaft structure which characterized in that, includes base plate, main gear, belting device and belting device, wherein:

the main transmission device comprises a main shaft and a main shaft motor, the main shaft is arranged on a substrate through a first bearing, the main shaft motor is connected with the main shaft and used for controlling the main shaft to rotate, an inner shaft is arranged in the main shaft through a second bearing, the inner shaft is of a hollow structure for a wire to pass through, and a rotary encoder for measuring the angular displacement of the main shaft is further arranged on the main shaft;

the belt conveying device is arranged on the main shaft and comprises a shell, a Mylar motor, an upper roller and a lower roller, the lower roller is positioned in the shell, is connected with the Mylar motor and can synchronously rotate along with an output shaft of the Mylar motor, the upper roller is fixed on an upper roller shaft, a bearing mounting groove is formed in the shell, two ends of the upper roller shaft are mounted in the bearing mounting groove through a third bearing, the upper roller and the lower roller are in contact with each other, so that the third bearing is not in contact with the bottom of the bearing mounting groove, and a pressure spring is arranged between the third bearing and the shell on the upper side of the upper roller;

the band conveying device comprises a winding frame and a band roller, the winding frame is arranged on a main shaft on one side of the band conveying device and can synchronously rotate along with the main shaft, and the band roller is arranged at the tail end of the winding frame; and a groove serving as a Mylar moving channel is axially processed on the main shaft at the other side of the belt conveying device.

2. The main shaft structure of the belt wrapping machine as claimed in claim 1, wherein a conductive slip ring for supplying power to the mylar motor is further mounted on the main shaft.

3. The main shaft structure of belt-wrapping machine as claimed in claim 1, wherein the main shaft motor is fixedly mounted on the base plate, the output shaft of the main shaft motor is fixedly mounted with a driving pulley, the driving pulley is connected with a driven pulley through a synchronous belt, and the driven pulley is fixedly mounted on the main shaft.

4. The main shaft structure of a belt-wrapping machine as claimed in claim 3, wherein the output shaft of the main shaft motor and the driving pulley transmit torque through a first key, and the driven pulley and the main shaft transmit torque through a second key.

5. The main shaft structure of belt wrapping machine as claimed in claim 1, wherein a main bearing seat is fixedly installed on the base plate, the first bearing is installed in the main bearing seat, the main shaft is supported by the first bearing, and a bearing end cover for axially positioning the first bearing is installed on the main bearing seat at the outer end of the first bearing.

6. The main shaft structure of a belt-packing machine as claimed in claim 1, wherein two symmetrical platforms are machined on the outer cylindrical surface of the main shaft, the belt feeding device is installed on one platform, and the balance weight is installed on the other platform.

7. The main shaft structure of a belt-wrapping machine as claimed in claim 1, wherein the groove axially processed on the main shaft as the Mylar moving channel is provided with a cover plate, and the outer side of the cover plate is provided with a positioning ring for radially positioning the cover plate.

8. The spindle structure of claim 7, wherein the cover plate and the groove as Mylar moving channel form a rectangular groove.

9. The method for controlling the timed interruption of the spindle structure of the taping machine as claimed in any one of claims 1 to 8, comprising:

(1) reading the number of pulses from a rotary encoder(ii) a Obtaining the angle of the main shaft rotating as；

Wherein:the angular pulse equivalent of the main shaft is,N ₂the number of pulses sent out for each rotation of the rotary encoder;

(2) calculating the length of Mylar to be fed out by the tape feederComprises the following steps:(ii) a Wherein the content of the first and second substances,the length of the wire rod which needs to be wound by Mylar is that the main shaft or the winding frame rotates for a circle;

(3) correction(ii) a Wherein the content of the first and second substances,is mylarThe remaining length;

(4) the number of pulses sent to the Mylar motor driver is calculated as，，Getting the whole; renewing remaining length of mylar；

Wherein:the pulse equivalent of mylar, is,Dthe diameter of the lower roller;N ₁the number of pulses required by each rotation of the Mylar motor is set;

(5) sends out to the Maillard motor driverA number of pulses;

(6) when the spindle stops rotating, the closing timing is interrupted.

Technical Field

The invention relates to a main shaft structure of a taping machine, in particular to a main shaft structure of a taping machine with winding tension and unwinding tension which can be adjusted independently and a timing interruption control method thereof.

Background

The taping machine mainly comprises a tape releasing device and a tape winding device, wherein the tape releasing device is responsible for winding a tape onto a core wire, and the tape releasing device is responsible for outputting the tape. The strip is generally stored in the strip storage cylinder, and the strip can be output by driving the strip storage cylinder to rotate through the strip releasing tension. Besides the main transmission system of the belt wrapping device, an independent transmission system is arranged for the belt releasing device of some belt wrapping machines, power is provided for the belt releasing device, and the structure is complex. The winding tension and the unwinding tension are the same and cannot be adjusted independently. Particularly, with the development of 5G technology, 5G high-speed wires are produced, and the ultrahigh transmission speed of the wires requires a higher manufacturing process, and particularly how to improve the mutual independence of the tape unwinding process and the tape winding process becomes a problem to be solved urgently.

Disclosure of Invention

In order to solve the problems, the invention provides a main shaft structure of a taping machine, wherein a tape feeding device is additionally arranged between a tape releasing device and a tape winding device, so that the tape releasing tension and the tape winding tension are independent from each other, and the tape winding tension can be independently adjusted. The invention further provides a timing interruption control method based on the main shaft structure of the taping machine.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a belting machine main shaft structure, includes base plate, main gear, belting device and belting device, wherein:

the main transmission device comprises a main shaft and a main shaft motor, the main shaft is arranged on a substrate through a first bearing, the main shaft motor is connected with the main shaft and used for controlling the main shaft to rotate, an inner shaft is arranged in the main shaft through a second bearing, the inner shaft is of a hollow structure for a wire to pass through, and a rotary encoder for measuring the angular displacement of the main shaft is further arranged on the main shaft;

the belt conveying device is arranged on the main shaft and comprises a shell, a Mylar motor, an upper roller and a lower roller, the lower roller is positioned in the shell, is connected with the Mylar motor and can synchronously rotate along with an output shaft of the Mylar motor, the upper roller is fixed on an upper roller shaft, a bearing mounting groove is formed in the shell, two ends of the upper roller shaft are mounted in the bearing mounting groove through a third bearing, the upper roller and the lower roller are in contact with each other, so that the third bearing is not in contact with the bottom of the bearing mounting groove, and a pressure spring is arranged between the third bearing and the shell on the upper side of the upper roller;

the band conveying device comprises a winding frame and a band roller, the winding frame is arranged on a main shaft on one side of the band conveying device and can synchronously rotate along with the main shaft, and the band roller is arranged at the tail end of the winding frame; and a groove serving as a Mylar moving channel is axially processed on the main shaft at the other side of the belt conveying device.

Furthermore, a conductive slip ring for supplying power to the Mylar motor is further installed on the main shaft.

Further, the spindle motor is fixedly mounted on the base plate, a driving pulley is fixedly mounted on an output shaft of the spindle motor, the driving pulley is connected with a driven pulley through a synchronous belt, and the driven pulley is fixedly mounted on the spindle.

Further, an output shaft of the spindle motor and the driving pulley transmit torque through a first key, and the driven pulley and the spindle transmit torque through a second key.

Further, a main bearing seat is fixedly installed on the substrate, the first bearing is installed in the main bearing seat, the main shaft is supported by the first bearing, and a bearing end cover used for axially positioning the first bearing is installed on the main bearing seat at the outer end of the first bearing.

Furthermore, two symmetrical platforms are processed on the outer cylindrical surface of the main shaft, the belt conveying device is installed on one platform, and a balance weight is installed on the other platform.

Furthermore, a cover plate is arranged in the groove which is axially processed on the main shaft and used as a Mylar moving channel, and a positioning ring for radially positioning the cover plate is arranged on the outer side of the cover plate.

Further, the cover plate and the groove serving as a mylar moving passage form a rectangular groove.

A timing interruption control method of a main shaft structure of a taping machine comprises the following steps:

(1) reading the number of pulses from a rotary encoder(ii) a Obtaining the angle of the main shaft rotating as；

Wherein:the angular pulse equivalent of the main shaft is,N ₂the number of pulses sent out for each rotation of the rotary encoder;

(2) calculating the length of Mylar to be fed out by the tape feederComprises the following steps:(ii) a Wherein the content of the first and second substances,the length of the wire rod which needs to be wound by Mylar is that the main shaft or the winding frame rotates for a circle;

(3) correction(ii) a Wherein the content of the first and second substances,is the remaining length of mylar;

(4) the number of pulses sent to the Mylar motor driver is calculated as，，Getting the whole; renewing remaining length of mylar；

Wherein:the pulse equivalent of mylar, is,Dthe diameter of the lower roller;N ₁the number of pulses required by each rotation of the Mylar motor is set;

(5) sends out to the Maillard motor driverA number of pulses;

(6) when the spindle stops rotating, the closing timing is interrupted.

Compared with the prior art, the invention has the beneficial effects that:

(1) the tape feeding device and the tape releasing device are mutually independent and can finely adjust parametersChanging the tension of the winding belt; the winding tension is independent of the unwinding tension;

(2) the Mylar motor directly drives the Mylar to move, so that the transmission chain is short and the transmission error is small; the transmission parts are few, and the transmission noise is low;

(3) the rotation angle of the spindle is measured through the rotary encoder, so that the number of pulses sent to a Mylar motor driver is accurately controlled, remainder is reserved, and no accumulated error exists;

(4) the main shaft directly adopts angular displacement measurement, and the Mylar motor adopts angular position control, so that the precision is higher and the response speed is higher than that of the traditional rotating speed measurement and rotating speed control;

(5) by using timing cycles in the order of millisecondsTThe constant-time interruption is carried out every several milliseconds, even if the rotating speed of the main shaft generates large disturbance, the Mylar motor can alsoSo as to drive the Mylar to move along with the rotation of the main shaft in time;

(6) by varying the remaining length of the MylarThe initial value can adjust the Mylar motor to start ahead or behind the main shaft, and can be adjusted quantitatively.

Drawings

FIG. 1 is a front view of a belt machine spindle configuration;

FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;

fig. 3 is a sectional view taken along the direction B-B in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1, 2, and 3 show a spindle structure of a taping machine in this embodiment, the taping machine includes a base plate 17, a main transmission device, a tape feeding device 23, and a taping device, wherein:

the main transmission device comprises a main shaft 7 and a main shaft motor 15. The spindle 7 is mounted on the base plate 17 through a first bearing 20, and the spindle motor 15 is connected to the spindle 7 for controlling the rotation of the spindle 7. An inner shaft 4 is arranged in the main shaft 7 through a second bearing 3, and the inner shaft 4 is a hollow structure for the wire 5 to pass through;

the tape feeding device 23 is mounted on the spindle 7, and includes a housing, a mylar motor 239, an upper roller 237, and a lower roller 232. The lower roller 232 is located in the housing, connected to the mylar motor 239, and can rotate synchronously with the output shaft of the mylar motor 239. The upper roller 237 is fixed on the upper roller shaft 236, a bearing mounting groove is formed on the housing, two ends of the upper roller shaft 236 are mounted in the bearing mounting groove through a third bearing 233, the upper roller 237 and the lower roller 232 are in contact with each other, so that the third bearing 233 is not in contact with the bottom of the bearing mounting groove, and a pressure spring 235 is arranged between the third bearing 233 and the housing on the upper side of the upper roller 237;

the taping device comprises a winding frame 1 and a taping roller 2, and is arranged on the right end face of the main shaft 7. The winding frame 1 is arranged on a main shaft 7 at one side of the belt conveying device and can synchronously rotate along with the main shaft 7, and the belt wrapping roller 2 is arranged at the tail end of the winding frame 1. A groove which is used as a moving channel of the Mylar 6 is axially processed on the main shaft 7 at the other side of the belt conveying device, and a rotary encoder 10 for measuring the angular displacement of the main shaft 7 is also arranged on the main shaft 7.

According to the main shaft structure of the taping machine, the tape conveying device is additionally arranged between the tape releasing device and the tape winding device, so that the tape releasing tension and the tape winding tension are independent from each other, and the tape winding tension can be independently adjusted.

Specifically, as shown in fig. 1, the spindle motor 15 is fixed on the base plate 17 by screws, and the driving pulley 14 is fixed on the output shaft of the spindle motor 15 by set screws, and transmits torque through the first key 16; the driven pulley 11 is fixed to the right end of the main shaft 7 by a set screw, and transmits torque via a second key 12. The driving pulley 14 and the driven pulley 11 are connected by a belt 13. The main shaft 7 is supported by two first bearings 20, the first bearings 20 being mounted in a main bearing housing 18, and two bearing end caps 19 effecting axial positioning of the two first bearings 20. The inner shaft 4 is supported by two second bearings 3, the second bearings 3 being mounted at both ends of the inner bore of the inner shaft 4.

Specifically, as shown in fig. 3, two symmetrical platforms are machined on the outer cylindrical surface of the right end of the main shaft 7, the belt feeding device 23 is installed on one platform, and the balance weight 8 is installed on the other platform. Vertical plates 231 and 238 of belt conveying device 23 are fixed on main shaft 7 by screws, and bearing mounting grooves are formed in both vertical plates 231 and 238. The Mylar motor 239 is fixed on the vertical plate 238, the lower roller 232 is fixed on the output shaft of the Mylar motor 239 in an interference fit manner, and the lower roller 232 synchronously rotates along with the output shaft of the Mylar motor 239. The right end of the main shaft 7 is provided with a conductive slip ring 9, and the conductive slip ring 9 is used for supplying power to the Mylar motor 239. The rotary encoder 10 is used to measure the angular displacement of the spindle 7. The upper roller shaft 236 is in interference fit with the upper roller 237, and both ends of the upper roller shaft 236 are supported by two third bearings 233; the two third bearings 233 are respectively positioned in the bearing mounting grooves of the vertical plate 231 and the vertical plate 238; because the upper roller 237 is in contact with the lower roller 232, the two third bearings 233 are not in contact with the bottoms of the bearing mounting grooves of the vertical plate 231 and the vertical plate 238. Two holes are processed in the upper cover plate 234, a pressure spring 235 is installed in each hole, the upper cover plate 234 is fixed on the vertical plate 231 and the vertical plate 238 through screws, and the pressure spring 235 just presses the third bearing 233, so that a certain contact pressure is kept between the upper roller 237 and the lower roller 232.

Specifically, as shown in fig. 2, the spindle 7 is axially provided with a groove, a cover plate 21 is placed in the groove, and a positioning ring 22 is used for radially positioning the cover plate 21. The cover plate 21 and the groove form a rectangular groove for a Mylar 6 moving channel; the mylar 6 enters the rectangular groove from the left end of the main shaft 7, is led out of the rectangular groove from the right end of the main shaft 7, then passes through the space between the upper roller 237 and the lower roller 232 of the tape feeding device 23, bypasses the taping roller 2 and is wound on the wire 5.

The embodiment also provides a spindle control method based on the spindle structure of the taping machine, which specifically comprises the following steps:

1. suppose that: the lower roller 232 has a diameter ofD(mm), the number of pulses per revolution of the Mylar motor 239 isN ₁To obtain that every time a pulse is sent to the mylar motor 239 driver, the distance that the lower roller 232 drives the mylar 6 to move is:(ii) a Hereinafter referred to asIs the mylar 6 pulse equivalent;

2. assume that the number of pulses per revolution of rotary encoder 10 isN ₂And obtaining the corresponding main shaft angle of each pulse of the rotary encoder 10 as follows:hereinafter, it is abbreviated asIs the equivalent of the pulse of the angle of the main shaft 7;

3. assuming that the spindle (or the bobbin) is known to rotate one turn, the length of the wire 5 to be wound with the mylar 6 is set to；

4. Setting timer interrupt periodT(unit ms);

5. starting timing interruption;

6. starting the spindle motor 15;

7. and (3) timing interruption occurs, and the following steps are executed:

(1) reading the number of pulses from rotary encoder 10(ii) a The angle of the main shaft 7 is obtained as；

(2) Calculating the length of the Mylar 6 to be fed out by the tape feeder 23Comprises the following steps:；

(3) correction，The residual length of the Mylar can be adjusted according to the starting condition of the equipmentAn initial value to achieve that the mylar motor 239 starts ahead or behind the spindle 7),

(4) the number of pulses sent to the driver of the Mylar motor 239 is calculated as，，Getting the whole; renewing remaining length of mylar；

(5) Sends out to the driver of the Mylar motor 239A number of pulses;

(6) when the stop button is pressed and the spindle stops rotating, the closing timing is interrupted.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.