Casing pipe diameter dynamic measuring device for casing pipe winding machine

Abstract

The utility model relates to a sleeve diameter dynamic measuring device for a sleeve winding machine, which comprises an alternating current servo motor, a first coupler, a mandrel, a sleeve, an upper compression roller, a fixed length roller, a first rotary encoder, a second coupler, a second rotary encoder and a control system. One end of the mandrel is connected with a first rotary encoder through a first coupler, the other end of the mandrel is connected with a second rotary encoder through a second coupler, the mandrel is sleeved with a sleeve, the upper pressing roller is rotatably arranged above the sleeve and pressed on the sleeve, and the fixed-length roller is rotatably arranged above the upper pressing roller and pressed on the upper pressing roller. The sleeve diameter dynamic measurement device for the sleeve winding machine improves the measurement accuracy and improves the automation degree and efficiency of sleeve winding.

Description

Technical Field

[0001] The utility model relates to the technical field of winding equipment, and particularly relates to a dynamic measuring device for the diameter of a sleeve used in a sleeve winding machine. Background Technique

[0002] As a common capacitor of power capacitors, the capacitive sleeve has an increasing demand. The sleeve winding machine is a mechanical device for producing capacitive sleeves and is widely used in the manufacturing of capacitive sleeves for high-voltage transmission transformers in the power industry. The winding process of the sleeve winding machine is that according to the process data, when the flat paper is wound to a certain diameter per roll, the winding stops, the screen aluminum foil is manually laid, after the screen is laid, the winding is started again, when it reaches the next diameter, the winding stops again, the screen aluminum foil is manually laid, and the process is cycled in sequence according to the process data.

[0003] At present, the measurement of the sleeve diameter by the sleeve winding machine is basically in the state of manual measurement, and a special fixture or caliper is used for measurement. Since manual measurement must be carried out in the stopped state, the efficiency is low; at the same time, due to manual measurement, the influence of human factors is large, the measurement consistency is poor, and the accuracy is poor, which cannot meet the requirements of mass production. Therefore, there is an urgent need for a dynamic measuring device for the diameter of a sleeve used in a sleeve winding machine that can automatically detect the sleeve diameter during the winding process and improve the measurement accuracy. Content of the Utility Model

[0004] In view of this, the utility model provides a dynamic measuring device for the diameter of a sleeve used in a sleeve winding machine, aiming to solve the problems existing in the prior art.

[0005] A dynamic measuring device for the diameter of a sleeve used in a sleeve winding machine of the utility model includes an AC servo motor, a first coupling, a mandrel, a sleeve, an upper pressure roller, a fixed-length roller, a first rotary encoder, a second coupling, a second rotary encoder and a control system. The driving end of the AC servo motor is connected to one end of the mandrel through the first coupling. The other end of the mandrel is connected to the second rotary encoder through the second coupling. The sleeve is sleeved on the mandrel. The upper pressure roller is rotatably arranged above the sleeve and presses on the sleeve. The fixed-length roller is rotatably arranged above the upper pressure roller and presses on the upper pressure roller. The flat paper is wound on the sleeve. As the winding thickness of the flat paper increases or decreases, the height of the upper pressure roller rises or falls. As the height of the upper pressure roller rises or falls, the height of the fixed-length roller rises or falls. One end of the fixed-length roller is connected to the first rotary encoder. A bracket is also provided at the same end of the fixed-length roller connected to the first rotary encoder. The fixed-length roller rises or falls on the wall panel equipped with a cylinder through the bracket. The upper pressure roller rotates on the upper pressure roller shaft, and both ends of the upper pressure roller shaft are arranged on the wall panel equipped with a cylinder. On the wall panel, the upper pressure roller can rise or fall. The cylinders on the wall panel all run synchronously. The AC servo motor, the first rotary encoder and the second rotary encoder are electrically connected to the control system.

[0006] Preferably, the first rotary encoder and the fixed-length roller are used to collect the winding length of the casing, and the second rotary encoder is used to collect the number of winding turns of the casing.

[0007] Preferably, the control system includes an AC servo driver for controlling the rotation of the mandrel, a main control unit for controlling the AC servo driver, and a high-speed counting unit for collecting the winding length of the casing by the first rotary encoder and the number of winding turns of the casing by the second rotary encoder.

[0008] Preferably, the mandrel drives the second rotary encoder to rotate synchronously through a second coupling, the casing drives the upper pressure roller to rotate synchronously, the upper pressure roller drives the fixed-length roller to rotate synchronously, and the fixed-length roller drives the first rotary encoder to rotate synchronously.

[0009] Preferably, both the first rotary encoder and the second rotary encoder adopt high-resolution rotary encoders.

[0010] A dynamic casing diameter measuring device for a casing winding machine according to the present invention uses two rotary encoders to dynamically sample the winding length and the number of winding turns of the casing respectively, automatically calculates the casing diameter through the PLC software of the high-speed counting unit, realizes the dynamic measurement of the casing diameter, and changes the original static measurement method of the caliper. Since the manual caliper measurement must be carried out in the stopped state, the efficiency is low, which affects the winding efficiency of the casing. After adopting this measurement technology, the dynamic measurement can be carried out during the casing winding process, improving the winding efficiency of the casing; by adopting high-resolution rotary encoders, the overall measurement accuracy of the system is improved. Since the circumference of the fixed-length roller is fixed, in order to achieve a high resolution, the overall measurement accuracy of the system is improved by increasing the number of lines of the rotary encoder and reducing the circumference of the fixed-length roller. Description of the Drawings

[0011] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0012] Figure 1 is a schematic structural diagram of a dynamic casing diameter measuring device for a casing winding machine according to the present invention;

[0013] Figure 2 is a front view of a dynamic casing diameter measuring device for a casing winding machine according to the present invention.

[0014] Description of the Reference Numerals:

[0015] 1 - AC servo motor; 2 - first coupling; 3 - mandrel; 4, sleeve; 5, upper pressure roller; 6, fixed-length roller; 7, first rotary encoder; 8, second coupling; 9 - second rotary encoder. Detailed implementation mode

[0016] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. Hereinafter, the present utility model will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0017] Embodiment 1

[0018] As Figure 1-2 shown, a dynamic measuring device for the diameter of the sleeve of a sleeve winding machine includes an AC servo motor 1, a first coupling 2, a mandrel 3, a sleeve 4, an upper pressure roller 5, a fixed-length roller 6, a first rotary encoder 7, a second coupling 8, a second rotary encoder 9 and a control system. The driving end of the AC servo motor 1 is connected to one end of the mandrel 3 through the first coupling 2. The other end of the mandrel 3 is connected to the second rotary encoder 9 through the second coupling 8. The sleeve 4 is sleeved on the mandrel 3. The upper pressure roller 5 is rotatably arranged above the sleeve 4 and presses on the sleeve 4. The fixed-length roller 6 is rotatably arranged above the upper pressure roller 5 and presses on the upper pressure roller 5. The flat paper is wound on the sleeve 4. As the winding thickness of the flat paper increases or decreases, the height of the upper pressure roller 5 rises or falls. As the height of the upper pressure roller 5 rises or falls, the height of the fixed-length roller 6 rises or falls. One end of the fixed-length roller 6 is connected to the first rotary encoder 7. A bracket is also provided at the same end of the fixed-length roller 6 connected to the first rotary encoder 7. The fixed-length roller 6 rises or falls on the wall panel equipped with a cylinder through the bracket. The upper pressure roller 5 rotates on the upper pressure roller shaft. Both ends of the upper pressure roller shaft are arranged on the wall panel equipped with a cylinder. On the wall panel, the upper pressure roller 5 can rise or fall. The cylinders on the wall panel all run synchronously. The AC servo motor 1, the first rotary encoder 7 and the second rotary encoder 9 are electrically connected to the control system.

[0019] The upper pressure roller 5 presses on the sleeve 4, and the pressure is variable.

[0020] When the flat paper is wound on the sleeve 4, as the winding thickness of the flat paper increases, the pressures of the upper pressure roller 5 and the fixed-length roller 6 remain unchanged, and the upper pressure roller 5 and the fixed-length roller 6 are driven to move upward passively.

[0021] Preferably, the first rotary encoder 7 and the fixed-length roller 6 are used to collect the winding length of the casing, and the second rotary encoder 9 is used to collect the number of winding turns of the casing.

[0022] The AC servo motor 1 drives the mandrel 3 to rotate through the first coupling 2. The mandrel 3 drives the casing 4 to rotate to complete the winding function of the flat paper. The other end of the mandrel 3 drives the second rotary encoder 9 to rotate through the second coupling 8 to complete the function of collecting the number of winding turns of the casing.

[0023] During the winding process of the casing 4, the upper pressure roller 5 is always pressed on the casing 4. When the casing 4 rotates, it drives the upper pressure roller 5 to rotate synchronously. The fixed-length roller 6 is pressed on the upper pressure roller 5. When the upper pressure roller 5 rotates, it drives the fixed-length roller 6 to rotate synchronously. When the fixed-length roller 6 rotates, it drives the rotary encoder 7 to rotate synchronously to complete the function of collecting the winding length of the casing.

[0024] Embodiment 2

[0025] Preferably, the control system includes an AC servo driver for controlling the rotation of the mandrel 3, a main control unit for controlling the AC servo driver, and a high-speed counting unit for collecting the winding length of the casing by the first rotary encoder 7 and the number of winding turns of the casing by the second rotary encoder 9.

[0026] The diameter of the casing is automatically calculated by the PLC software of the high-speed counting unit. The calculation method is as follows:

[0027] The winding length of the casing is automatically sampled by the first rotary encoder 7 and the fixed-length roller 6;

[0028] The number of rotation turns of the casing is automatically detected by the second rotary encoder 9;

[0029] Each time the casing rotates 1 turn, the PLC high-speed counter corresponding to the second rotary encoder 9 is interrupted once. At this time, the value of the PLC high-speed counter corresponding to the first rotary encoder 7 is read, and the length value corresponding to this value is the current circumference of the casing. The current diameter of the casing can be calculated by software.

[0030] Preferably, the mandrel 3 drives the second rotary encoder 9 to rotate synchronously through the second coupling 8. The casing 4 drives the upper pressure roller 5 to rotate synchronously. The upper pressure roller 5 drives the fixed-length roller 6 to rotate synchronously. The fixed-length roller 6 drives the first rotary encoder 7 to rotate synchronously.

[0031] Preferably, both the first rotary encoder 7 and the second rotary encoder 9 adopt high-resolution rotary encoders.

[0032] The AC servo motor is also provided with a speed reducer.

[0033] The working principle of the present utility model is as follows:

[0034] The measurement of the diameter of the casing 4 is carried out by measuring the circumference of the casing 4, and the current diameter of the casing is calculated through the PLC software of the high-speed counting unit. The measurement of the casing circumference is carried out by driving the high-resolution first rotary encoder 7 to rotate through the fixed-length roller 6, and the signal of the first rotary encoder 7 is uploaded to the high-speed counter of the PLC to automatically record the winding length of the casing; the rotation of the casing 4 drives the second rotary encoder 9 to rotate, and the signal of the second rotary encoder 9 is uploaded to the high-speed counter of the PLC to automatically record the winding turns of the casing. Each time the casing rotates 1 turn, the PLC high-speed counter corresponding to the second rotary encoder 9 is interrupted once. At this time, the PLC directly reads the value of the PLC high-speed counter corresponding to the first rotary encoder 7, and the length value corresponding to this value is the current circumference of the casing. The current diameter of the casing can be calculated through the PLC software.

[0035] The dynamic measurement device for the diameter of the casing of the utility model improves the measurement accuracy and the automation degree and efficiency of the casing winding.

[0036] Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalent technologies, the utility model is also intended to include these changes and modifications.

Claims

1. A casing diameter dynamic measuring device for a casing winding machine, characterized in that: The invention comprises an AC servo motor (1), a first coupling (2), a mandrel (3), a sleeve (4), an upper pressure roller (5), a fixed-length roller (6), a first rotary encoder (7), a second coupling (8), a second rotary encoder (9) and a control system, wherein the driving end of the AC servo motor (1) is connected to one end of the mandrel (3) via the first coupling (2), the other end of the mandrel (3) is connected to the second rotary encoder (9) via the second coupling (8), and the sleeve (4) is sleeved on the mandrel (3); the upper pressure roller (5) is rotatably arranged above the sleeve (4) and presses on the sleeve (4), and the fixed-length roller (6) is rotatably arranged above the upper pressure roller (5) and presses on the sleeve (4); The upper pressing roller (5) is pressed; the flat paper is wound on the sleeve (4); the height of the upper pressing roller (5) rises or falls as the thickness of the flat paper increases or decreases; the height of the fixed-length roller (6) rises or falls as the height of the upper pressing roller (5) rises or falls; one end of the fixed-length roller (6) is connected to a first rotary encoder (7); a bracket is also provided at the same end of the fixed-length roller (6) as that connected to the first rotary encoder (7); the fixed-length roller (6) rises or falls on a wall panel on which a cylinder is installed through the bracket; the upper pressing roller (5) rotates on the upper pressing roller shaft; both ends of the upper pressing roller shaft are arranged on a wall panel on which a cylinder is installed; the upper pressing roller (5) can rise or fall on the wall panel; the cylinders on the wall panel all operate synchronously; The AC servo motor (1), the first rotary encoder (7) and the second rotary encoder (9) are electrically connected to a control system.

2. The casing diameter dynamic measuring device for casing winding machine according to claim 1, characterized in that: The first rotary encoder (7) and the fixed-length roller (6) are used to collect the sleeve winding length, and the second rotary encoder (9) is used to collect the number of sleeve winding turns.

3. The casing diameter dynamic measuring device for a casing winding machine according to claim 1, characterized in that: The control system comprises an AC servo driver for controlling the rotation of the core shaft (3), a main control unit for controlling the AC servo driver, and a high-speed counting unit for collecting the sleeve winding length of the first rotary encoder (7) and the number of sleeve winding turns of the second rotary encoder (9).

4. The casing diameter dynamic measuring device for a casing winding machine according to claim 1, characterized in that: The core shaft (3) drives the second rotary encoder (9) to rotate synchronously through the second coupling (8), the sleeve (4) drives the upper pressure roller (5) to rotate synchronously, the upper pressure roller (5) drives the fixed-length roller (6) to rotate synchronously, and the fixed-length roller (6) drives the first rotary encoder (7) to rotate synchronously.

5. The casing diameter dynamic measuring device for casing winding machine according to claim 1, characterized in that: The first rotary encoder (7) and the second rotary encoder (9) are both high-resolution rotary encoders.

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