JPH0525783B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a belt-shaped body, in which the end portion of the belt-shaped body is attached to a predetermined winding shaft, the belt is rotated, and the belt-shaped body is wound up by a predetermined amount on the winding shaft. The present invention relates to a pick-up device.

[Conventional technology]

For example, in a general aluminum electrolytic capacitor, the surface of an aluminum foil is etched to enlarge the surface area, and then an anode foil is formed by forming a dielectric material through electrochemical conversion treatment. Then, the conductive metal foil is used as a cathode foil, and the electrolytic paper is interposed between the two foils and wound into a cylindrical shape. In this winding process, lead terminals corresponding to each foil are also welded. The element thus wound into a cylindrical shape is impregnated with a driving electrolyte to form a capacitor element, and this capacitor element is housed in a case to form an aluminum electrolytic capacitor. By the way, in the winding process of aluminum electrolytic capacitors, a roll of anode foil and
Using a roll of cathode foil and a roll of electrolytic paper, as described above, the strips of foil and paper are alternately superimposed so that the electrolytic paper is interposed between each foil, for example, 4
Constructed in multiple layers. The end of the multi-layered strip is attached to a predetermined winding shaft and rotated at a constant speed, and when a predetermined amount has been wound around the winding shaft, the rotation of the winding shaft is stopped and one polarity is set. The foil responsible for the other polarity is cut together with the paper, and the winding shaft is rotated slightly again, then stopped, and the foil responsible for the other polarity is cut together with the remaining paper to form a capacitor element, and then the winding shaft is pulled out. Thereafter, the end portion of the multi-layered strip is mounted on the winding shaft again and the same operation is repeated.

[Problem to be solved by the invention]

By the way, in order to improve the productivity of aluminum electrolytic capacitors, it is necessary to increase the rotational speed of the above-mentioned winding shaft to shorten the foil winding time. However, the anode foil of an aluminum electrolytic capacitor is easily damaged by a slight tension because its surface is etched.If the winding shaft is rotated quickly, the shaft will break when a certain amount of foil has been wound up. When the rotation of the anode foil is decelerated, the braking becomes rapid, and excessive tension is applied to the anode foil, which may cause damage. Therefore, the rotational speed of the winding shaft cannot be made very high, making it difficult to improve the productivity of aluminum electrolytic capacitors.

[Means to solve the problem]

The belt-shaped body winding device of the present invention is a belt-shaped body winding device that drives an end of the belt-shaped body attached to a winding shaft and winds a predetermined amount on the winding shaft. Stores multiple pieces of data indicating the rotational speed, and indicates the rotational speed of the winding shaft corresponding to each winding position from among the multiple data at multiple winding positions from the start to the end of the strip. The first feature is that the rotational speed of the winding shaft is controlled by reading data. Further, the belt-shaped body winding device of the present invention includes:
A belt-like body winding device that drives an end of a belt-like body by attaching it to a winding shaft and winds a predetermined amount onto the winding shaft, the winding device comprising: a motor that drives the winding shaft; An encoder that outputs first data each time it is wound, and an encoder that stores a plurality of data indicating the rotational speed of the motor including starting and stopping the motor, inputs the first data, and inputs the first data each time. The second feature is that the information processing apparatus is configured to include an information processing apparatus that sequentially reads and outputs second data indicating the rotational speed of the motor corresponding to the winding position of the strip at this point in time. The third feature is that the second data is selected such that the rotational speed of the motor is accelerated and then decelerated over time during the entire period from the start to the stop of the motor.

[Effect]

In the belt-shaped body winding device of the present invention, it is possible to freely store data of practically convenient and suitable values as a plurality of data indicating the rotational speed of the winding shaft. Since the configuration is such that the rotational speed of the winding shaft is controlled by reading out data corresponding to the winding position of the strip from among the stored data, the rotational speed characteristics of the winding shaft can be adjusted as required. It can be set very freely depending on the needs. In addition, since the plurality of data stored in the information processing section are read out every time the first data is input, which is output every time a certain amount of the strip is wound, the data is read out in accordance with the timing of input of the first data. By selecting each value of the plurality of data stored in the information processing section, the rotational speed of the winding shaft after the winding shaft starts rotating can be set to a desired characteristic. The rotational speed of the winding shaft draws a curve in which it is accelerated and then decelerated as time passes.

〔Example〕

Next, the belt-shaped body winding device of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a circuit diagram showing an embodiment of the belt-shaped body winding device of the present invention, FIG. 2 is a waveform diagram for explaining the operation of each part thereof, and FIG. It is a flowchart of the information processing device 1.

In Figure 1, 1 is a CPU (information processing unit)
N+1 pieces of data (M ₁ to M _N+1 ) indicating the rotational speed of the motor 5 are stored using an input device (not shown). These N+1 pieces of data (M ₁ ~
M _N+1 ) is halfway from the beginning (about half in the example)
The data up to this point are arranged in order from data with low rotation speed values to data with high rotation speed values, and the remaining data (about half of the remaining data in the example) is data with high rotation speed values. The data is arranged so that the rotation speed is sequentially lower than that of the rotation speed. In this example, a Hitachi IC (68P01M0) was used as the CPU 1. 2 is a start switch, and when this switch is turned on, the CPU
1 sequentially executes each step shown in the flowchart of FIG. 3 is wound into a roll with anode foil. Reference numeral 4 denotes a winding shaft, which is attached to the rotating shaft of the motor 5. 6 is a roller that rotates according to the feeding state of the anode foil 3; 7 is provided coaxially with the roller 6;
This is a foil encoder that outputs a single position pulse when a certain amount of anode foil 3 is fed. 8 is CPU
1 is a D/A converter that converts digital data M indicating the rotational speed of the motor into an analog motor drive signal; 9 is a motor drive circuit that inputs this motor drive signal to drive the motor 5; be. Each of the plurality of switches 10 and 11 is a switch that sets the winding amount of the anode foil to be wound in K-ary P digits (in the example, decimal 4-digits) depending on the opening/closing setting state of each switch. In the group, switch group 10 sets the upper Q digit (upper 2 digits in the example) of the winding amount of the anode foil, and sets the lower R digit (lower 2 digits in the example) of the winding amount of the anode foil.
digit) Set DL. However, the number of data (N +
In 1), DM and DL are set to be the minimum value of the upper digit + 1 (101 in the embodiment).

The strips 12 and 13 are electrolytic paper, and the strip 14 is a cathode foil made of conductive metal foil. 1
5 to 20 indicate rollers movably directing each of the strips 12, 13, and 14. In this embodiment, electrolytic paper 1 is placed between the cathode foil 14 and the anode foil 3, respectively.
2 and 13 are stacked alternately to form a four-layer structure. The ends of this multi-layered strip are attached to a winding shaft 4.

Next, the operation of the present invention will be explained. First, when switch 2 is turned on (step 101), the winding amount of the anode foil, which is expressed in four decimal digits, is set to the upper two digits DM and the lower two digits DL according to the setting status of each switch group 10 and 11. Separately stored on CPU1 (step
102). On the other hand, the CPU 1 stores N+1 pieces of data (M ₁ to _{M N+1} ) indicating the rotational speed of the motor 5 through an input device (not shown). and,
Each time the CPU 1 receives a position pulse that is singularly output from the foil encoder 7 when a certain amount of anode foil 3 is fed, the CPU 1 outputs a plurality of internally stored data (M ₁
~M _N+1 ) Necessary data M is sequentially read out and output from among them. The D/A converter 8 converts the sequentially outputted data M into an analog motor drive signal corresponding to the value, and drives the motor 5.

Here, the flowchart of FIG. 3 will be explained in order to better understand the present invention.

When switch 2 is turned on at the first step 101, step 102 is executed and switch group 1 is turned on.
Depending on the settings of 0 and 11, the winding amount of the anode foil is expressed in 4 decimal digits as the upper 2 digits DM and the lower 2 digits.
It is divided into DL and stored on the CPU. To make the explanation easier to understand, the amount of winding of the anode foil is
The length shall be 340mm. The values of DM and DL at this time are
Set to DM-03 and DL-40. Further, the following explanation will be continued assuming that the number of data (M ₁ to _{M N+1} ) indicating the rotational speed of the motor 5 is, for example, 101 as described above. Now, the next step
In step 103, 1 is first assigned to read data N indicating the order in which data (M ₁ to M ₁₀₁ ) instructing the rotational speed of the motor 5 is read, and the process moves to step 104 where the first data M ₁ is read and D/ Output to A converter 8. Thereby, the motor 5 converts the data _M1 into an analog motor drive signal corresponding to the value, and drives the motor 5. this data
Although M ₁ is data that instructs the rotational speed like other data (M ₂ to _{M N+1} ), it is output when the motor 5 is stopped and instructs the motor 5 to start. This is different from other data (M ₂ to _{M N+1} ) output during driving. In the next step 104, the two-digit decimal counter C1 in CPU1 assigned to count the upper two digits DM of the winding amount of anode foil is cleared, and the process moves to step 106.
Within the CPU 1, detection of the position pulse I output from the foil encoder 7 is carried out. When the position pulse I is detected in step 106, the process moves to step 107.
The position pulse I is input to the counter C1 in the CPU 1, and its number is counted. This position pulse I
It is determined that the position pulse I has been detected when the leading edge of the position pulse I is detected. Now,
The counter C1 in the CPU 1 continues to count the position pulses I until it is determined in step 108 that three position pulses I (DM) have been counted. And the steps
When it is determined in step 108 that three position pulses I have been counted, the process moves to step 109 and read data N+1 is substituted. In the next step 110, the data (M ₁ to M ₁₀₁ ) instructing the rotational speed of the motor 5 are read out (approximately half of the times: the data while the motor 5 is being driven is M ₂
~ M ₁₀₁ , and considering the number of times the data is read while the motor 5 is being driven, data M ₂ to data M ₅₁ can be read 51 times (half the number of data 100 while the motor 5 is being driven). Determine whether it is being executed and read the data (M ₁ to M ₁₀₁ ) if 51
If the process has not been executed twice, the process moves to step 115. This step 115 judges whether reading of data (M ₁ to _{M 101} ) has been executed 101 times (all times), and determines whether reading of data (M ₁ to M ₁₀₁ ) has been executed (all times) 101 times. If not, step 104
Return to In this way, the steps starting from step 104 are repeated until the data (M ₁ to _{M 101} ) has been read 51 times, and the steps from step 115 are repeated.
104, the data ( _M1 to _M51 ) are read out in order and output to the D/A converter 8. Then, in the D/A converter 8, the CPU 1
Each time the data (M ₁ to _{M 51} ) that is read in order is newly read, the updated data (M 1 to M ₅₁ ) is
~ _M51 ) is converted into an analog motor drive signal corresponding to the value, and the motor 5 is driven. thus,
Data (M ₁ to M ₁₀₁ ) is read (about half of the times)
When the process is executed 51 times, the process moves to step 111 and subsequent steps. In step 111, the decimal two-digit counter C2 in CPU1 assigned to count the lower two digits DL of the winding amount of anode foil is cleared, and the process moves to step 112, where the output from foil encoder 7 is cleared in CPU1. Detection of the position pulse I is carried out. When the position pulse I is detected in step 112, the step
113, the position pulse I is input to the counter C1 in the CPU 1, and its number is counted. The point that it is determined that the position pulse I has been detected when the leading edge of the position pulse I is detected is as described above. Now, the CPU
The counter C1 in 1 continues to count the position pulses I until it is determined in step 114 that 40 position pulses I (DL) have been counted. And step 114
When it is determined that 40 position pulses I have been counted, the process moves to step 109 and N+1 is substituted for the read data N. In the steps executed so far, the value of N has already exceeded 51, so the process passes through step 110 and proceeds to step 115. Naturally, the value of N has not reached 101, so in step 115 it is determined that the data (M ₁ to M ₁₀₁ ) has not been read 101 times (all times), and the process returns to step 104. In this way, the steps starting from step 104 are repeated until the data (M ₁ to M ₁₀₁ ) has been read 101 times (all times). Again, each time the transition from step 115 to step 104 occurs, the data (M ₅₂ to
M ₁₀₁ ) are read out in order and output to the D/A converter 8. Then, in the D/A converter 8, the data (M ₅₂
~ _M101 ) is newly read out, it is converted into an analog motor drive signal corresponding to the value of the updated data ( _M52 ~ _M101 ), and the motor 5 is driven. Then, the motor 5 stops rotating when the data M ₁₀₁ is read out.

In this way, the data (M ₁ to M _N+1 ) instructing the rotational speed of the motor 5 is expressed by the four decimal digits set by the position pulse I output from the foil encoder 7 in the switch group 10. Top 2 winding amounts of anode foil
Each time the number indicated by a digit (DM number) is detected, first, about half is read out, and then the position pulse I output from the foil encoder 7 is expressed in the four decimal digits set by the switch group 11. After stopping reading the data (M ₁ to M _N+1 ) until the number (DL) indicated by the lower two digits of the winding amount of the anode foil is detected, the foil encoder 7 outputs the data again. Every time DM position pulses I are detected, about half of the remaining pulses are read out. On the other hand, the first half of the N+1 pieces of data (M ₁ to _{M N+1} ) are arranged so that data with slow rotational speeds are sequentially changed to data with high rotational speed values, and the remaining approximately half Since the half of the data is arranged in such a way that the data of the rotational speed is sequentially changed from the data with the highest value to the data with the lowest rotational speed, the motor 5 operates as shown in the waveform diagram in FIG. 2 during the entire period from start to stop. A curve is drawn in which the rotational speed is accelerated and then decelerated over time. That is, after starting, the rotational speed of the motor 5 increases sequentially over time, and when it reaches a predetermined maximum rotational speed, this maximum rotational speed is maintained for a while, and then decreases sequentially, and the motor 5 stops rotating. do.

〔Effect of the invention〕

As explained above, in the belt-shaped body winding device of the present invention, it is possible to freely store data of practically convenient and suitable values as a plurality of data indicating the rotational speed of the winding shaft. Since the configuration is such that the rotational speed of the winding shaft is controlled by reading data corresponding to the winding position of the strip from among the plurality of stored data, the rotational speed characteristics of the winding shaft can be adjusted as required. It can be set very freely depending on the needs. In addition, the winding shaft that winds the strip is driven by a motor, and the rotational speed of this motor is such that multiple pieces of data stored in the information processing device are read out every time a certain amount of the strip is wound. Configured. Therefore, by changing the rotational speed of the motor (take-up shaft) during the entire period from the start of winding to the end of winding, the motor (take-up shaft)
The rotation speed can be changed. Therefore, even if the rotation speed of the motor (winding shaft) is changed to shorten the foil winding time as necessary, the braking when stopping the rotation of the motor (winding shaft) will be abrupt. It is possible to avoid applying transient tension to the anode foil. Furthermore, the rotational speed of the motor (winding shaft) draws a curve that accelerates and then decelerates over time during the entire period from start to stop.

According to the present invention, when applied to the production field of aluminum electrolytic capacitors, for example, the problem of damage to the anode foil due to the shortening of the foil winding time is solved, and the productivity of aluminum electrolytic capacitors is improved. The effects are great, such as being able to measure things.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the belt-shaped body winding device of the present invention, FIG. 2 is a waveform diagram for explaining the operation of each part thereof, and FIG. It is a flowchart of the information processing device 1. DESCRIPTION OF SYMBOLS 1... Information processing unit, 3... Anode foil constituting the strip, 4... Winding shaft, 5... Motor, 7...
foil encoder.

Claims (1)

[Scope of Claims] 1. A belt-shaped body winding device that drives an end of a belt-shaped body attached to a winding shaft and winds a predetermined amount on the winding shaft, the rotational speed of the winding shaft being A plurality of data indicating the winding position are recorded, and the rotational speed of the winding shaft corresponding to each winding position is determined from among the plurality of data at a plurality of winding positions from the start of winding to the winding end of the belt-shaped body. 1. A belt-shaped material winding device, characterized in that the device is configured to control the rotational speed of the winding shaft by reading data indicating the winding shaft. 2. A belt-like body winding device that drives an end of a belt-like body attached to a wind-up shaft and winds a predetermined amount onto the wind-up shaft, the winding device comprising: a motor that drives the wind-up shaft; and a motor that drives the wind-up shaft; an encoder that outputs first data every time a certain amount of the motor is wound; an encoder that stores a plurality of data indicating the rotational speed of the motor including starting and stopping of the motor; and an information processing device that sequentially reads and outputs second data indicating the rotational speed of the motor corresponding to the current winding position of the strip from among the plurality of data each time. A device for winding a strip. 3. The second motor is configured such that the rotational speed of the motor is accelerated and then decelerated over time during the entire period from the start to the stop of the motor.
3. The belt-shaped body winding device according to claim 2, wherein the data is selected.