JPH04338058A - Follow-up control device for continuous processing equipment - Google Patents

Abstract

PURPOSE:To provide a follow-up control device for continuous processing equipment capable of automatically adjusting the storage quantity between a central section and a delivery side section so as to enable the rational and effective operation of storage devices. CONSTITUTION:A follow-up control device computes the speed reference of processed material in a second processing part 23 for obtaining the specified relation between the material storage quantity of a material storage device 22, provided between the first and second processing parts 21, 23 of a central section CS, and that of a material storage device 31 provided between the central section CS and a delivery side section, on the basis of the material storage quantity detected by material storage quantity detecting means 4, 5 and the material speed detected by material speed detecting means 3, 6. The follow-up control device then controls the speed of processed material in the second processing part 23 according to the computed speed reference.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides continuous processing equipment that continuously processes plate-shaped materials such as paper, film, and steel, which has two processing sections with different processing capacities. The present invention relates to a follow-up control device for continuous processing equipment, which has a plate storage device for storing materials to be processed in between.

0002

2. Description of the Related Art An example of a conventional continuous processing line for continuously processing plate-shaped materials to be processed will be explained with reference to FIG.

The continuous processing line in FIG.
The material to be processed 2 is assumed to proceed from right to left in the figure, from the entrance section ES through the central section CS to the exit section 30. This brings us to section 30.

[0004] The entry side section ES includes a first unwinding machine 10;
a second rewinding machine 11, a first deflector pinch roll 12,
It is equipped with an entry side loop car device 13 and a second deflector pinch roll 18. The first unwinding machine 10 is equipped with a coil 2a that becomes the material to be processed 2, and the second unwinding machine 11 is equipped with a coil 2b. The first deflector pinch roll 12 receives the processed material 2 supplied from the first unwinding machine 10 (or the processed material supplied from the second unwinding machine 11) and directs it toward the entry side loop car device 13. invite.

[0005] The entry side loop car device 13 is configured to continuously supply the material 2 to be processed to the center section CS so as not to stop driving the center section CS except in special cases such as a human accident. The first unwinding machine 10 (
Alternatively, the first steering roll 18 and the second steering roll 16 that are placed in a fixed state and the first steering roll 18 and the second steering roll 16 that are provided in a movable state are By adjusting the distance between the first loop car 15 and the second loop car 17, the material 2 to be processed is temporarily stored according to the distance, and then supplied to the center section CS through the deflector pinch roll 18. .

[0006] The center section CS is provided for performing treatments such as plating or pickling, and receives the material 2 to be treated supplied from the entry section ES. It has a processing section 20 that continuously performs predetermined processing on the material, and sends out the material 2 to be processed, which has been subjected to processing such as plating or pickling, to an output section DS.

[0007] The exit section DS is the entrance section E.
Similarly to S, it is equipped with a first winding machine 37, a second winding machine 38, a first deflector pinch roll 30, an exit loop car device 31, and a second deflector pinch roll 36. The first deflector pinch roll 30 receives the treated material 2 supplied from the center section CS and supplies it to the exit loop car device 31 .

Like the inlet loop car device 13, the outgoing loop car device 31 is configured to continuously drive the central section CS so as not to stop driving the central section CS, except in special cases such as a human accident. It is provided so that the material to be treated 2 can be received therein. The exit side loop car device 31 receives the processed material 2 supplied from the center section CS through the deflector pinch roll 30, and is placed in a fixed state with a first loop car 32 and a second loop car 34 provided in a movable state. By adjusting the distance between the first steering roll 33 and the second steering roll 35, the material 2 to be processed is temporarily stored according to the distance, and then the material 2 is wound up through the deflector pinch roll 36. winder 37 (or second winder 38).

[0009] First winder 37 and second winder 38
receives the processed material 2 supplied from the outlet loop car device 31 via the deflector pinch roll 36, and winds it as a coil 2c or 2d.

In the continuous processing line configured as described above,
Since the center section CS needs to continuously process the material 2 supplied from the entrance section ES in the processing section 20, the continuous processing process described above cannot be stopped unless it is unavoidable. On the contrary,
The entry side section ES includes coils 2a and 2b attached to the first unwinding machine 10 or the second unwinding machine 11, respectively.
Since new material is supplied to the center section CS while replacing the coil, a coil replacement operation is inevitably involved. During this work, the entry section ES must be temporarily stopped.

Similarly, in the outlet section DS, the material 2 to be treated after being subjected to a predetermined treatment in the center section CS is wound as a coil 2c or 2d by the first winder 37 or the second winder 38. After removing the coils, it is necessary to extract the coils 2c and 2d. Even when performing this extraction work, etc., the drive must be temporarily stopped.

[0012] When the driving of the first rewinding machine 10 and the second rewinding machine 11 of the entry side section ES and the first winding machine 37 and the second winding machine 38 of the exit side section DS are stopped in this way, However, since the operation of the center section CS cannot be stopped, as described above, the processing target material 2
An inlet loop car device 13 is provided near the center section CS of the inlet section ES as a device that has the function of temporarily storing , and an outlet loop car device 31 is provided near the center section CS of the outlet section DS. It is.

However, in modern equipment, the processing section provided in the center section CS has become complicated, and there are increasing cases where the processing section is provided with two processing functions. Note that a loop tower is known as a device having the same function as the illustrated loop car device. The difference between the two is that in the former, the fixed part and the movable part are arranged in a plane, whereas in the latter, the fixed part and the movable part are arranged vertically. In the following, both will be collectively referred to as the material storage device.
Even if it is a loop car device, it will be illustrated as a loop tower.

[0014] Considering the above situation, the central section CS
, another line for installing material storage equipment appeared. The feature of this line is that the central section CS has multiple processing sections with different purposes, and the material speed at each processing section is changed depending on the characteristics of each processing. For example, as shown in FIG.
A first section C1 including a processing section 21 (for example, a processing section that performs processing such as heating and plating), and a second processing section 23
(For example, a process department that performs blade changes, roll changes, etc.)
A so-called intermediate storage device 22 is interposed between the two sections. Based on the characteristics of each section, the material 2 to be treated is transferred to the first section C.
1, the vehicle is run at a constant speed, and in the second section C2, the vehicle is run while changing the speed as appropriate. It is sufficient if the influence of the variable speed operation of the second section C2 can be absorbed by the intermediate storage device 22, but if the influence cannot be absorbed completely,
The storage amount of the material storage device 31 of the outlet section DS is also adjusted at the same time to free up handling time for the outlet section DS.

[0015]

[Problems to be Solved by the Invention] In the conventional technology, the storage amount of the two storage devices in the central section CS and the outlet section DS was adjusted by manual speed adjustment of the variable part. cutting boards,
Manual speed adjustment work was required each time the rolls were reassembled, which necessitated an increase in the number of workers.

[0016] Therefore, the object of the present invention is to
It is an object of the present invention to provide a follow-up control device for continuous processing material equipment, which can automatically adjust the storage amount between the central section and the outlet section, thereby operating the storage device rationally and efficiently.

[0017]

[Means for Solving the Problems] In order to achieve the above object, the follow-up control device of the present invention moves the material to be processed from the entry section to a section with different processing capacities in order to process the continuous material to be processed in the form of a plate. In a continuous processing facility for conveying to an outlet section through a central section having at least a first processing section and a second processing section, between the inlet section and the central section, between the first and second processing sections, and between the central section and a material storage device provided between the first and second processing sections for storing the material to be processed, respectively, and a storage device provided between the first and second processing sections, the central section, and the exit section. a material storage amount detection means for detecting the storage amount of each material in the storage device provided between the first and second storage devices;
material speed detection means for detecting the material speed in the processing section and the material speed in the outlet section; For establishing a predetermined relationship between the material storage amount of the material storage device provided between the first and second processing sections and the material storage amount of the material storage device provided between the central section and the outlet section. Second
It is characterized by comprising a calculation means for calculating a speed standard of the material to be processed in the second processing section, and a driving means for controlling the speed of the material to be processed in the second processing section in accordance with the speed standard determined by the calculation means. shall be.

[0018]

[Operation] Based on the material storage amount detected by the material storage amount detection means and the material speed detected by the material speed detection means, the material storage device provided between the first and second processing sections of the central section is Calculates a speed standard for the material to be processed in the second processing section to establish a predetermined relationship between the material storage amount and the material storage amount of the material storage device provided between the central section and the outlet section; By controlling the speed of the material to be processed in the second processing section according to the speed standard, the amount of storage between the central section and the outlet section is optimally automatically adjusted, thereby operating the storage device rationally and efficiently. becomes possible.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in more detail below with reference to the drawings.

FIG. 1 shows an embodiment of a follow-up control device constructed in accordance with an embodiment of the present invention. In addition, Figure 1
4, elements having the same or equivalent functions as those in FIG. 4 are designated by the same reference numerals.

The central section CS includes a first section C1 including a first processing section 21 and a second section C1 including a second processing section 23.
It consists of section C2, both sections C1 and C
An intermediate storage device 22 is interposed between the two. It is assumed that the first processing section 21 is not allowed to stop the line and the material to be processed 2 is transported at a constant speed, and the speed of the second processing section 23 is adjusted as appropriate. The storage capacity of the material storage device 31 of the outlet section DS is relatively small, so that together with the second processing section 23, the intermediate storage device 22 of the central section CS,
And the material storage device 31 of the outlet section DS is also configured as a variable speed device.

Further, as detection ends, a speed detection device 3 for detecting the material speed Ve at the deflector pinch roll 24 in the first processing section 21 and a pulse transmitter for detecting the amount of material stored in the intermediate storage device 22 are provided. 4. A pulse transmitter 5 for detecting the amount of material stored in the material storage device 31 of the outlet section, and a speed detection device 6 for detecting the material speed Vd at the deflector pinch roll 36 in the outlet section DS. It is provided. The pulse transmitters 4, 5 can detect the storage quantity as the mutual distance between the fixed part and the movable part of each material storage device or as the difference between the input material length and the output material length.

From the material speed Ve in the first processing section 21 detected by the speed detection device 3 and the material speed Vd in the outlet section DS detected by the speed detection device 6, the difference between the two, that is, the speed difference ΔV is calculated. speed difference (ΔV) calculation device 40 and outputs Pc and Pd of both pulse transmitters 4 and 5.
Based on the material storage amount Sc, S of both storage devices 22, 31
A storage amount calculating device 41 for calculating d is provided. A speed reference calculation device 42 calculates a speed reference Vrf for material conveyance in the second processing section 23 by inputting the output of the storage amount calculation device 41 and the output of the speed difference calculation device 40 . Based on the speed reference Vrf calculated here, the drive device 43
The material conveyance speed in the second processing section 23 is controlled via.

The speed reference Vrf determined by the speed reference calculation device 42 will now be explained in more detail. In FIG. 2, the vertical axis represents the material speed V, and the horizontal axis represents time. Regarding the symbols in the figure, Ve: Material speed in the first processing section 21 Vc: Second processing section 23
Material speed at Vd: Material speed at outlet section DS a-b:
A section where each speed is the same and the operation is in a steady state.
b-c: Section where the exit section DS is decelerating c-d: Section where the exit section DS is stopped d-e:
Section where the exit section DS accelerates again e
-g: Intermediate storage device 22 and outlet storage device 3
In 1, the material is
Section g-: the same as the a-b section. The present invention is applicable to all of the b-g sections in the above state, but for the sake of explanation, b-c The explanation will be based on the section.

Section b where the exit section DS is decelerated
Since the time to the deceleration target of the material speed Vd in the outlet section DS and the material speed Vc in the second processing section 23 at -c is the same, the difference in material conveyance length calculated from the material speeds Ve and Vd , the ratio between the sum of the storage amounts L1 and L2 (=L1+L2) of the two sets of storage devices 22 and 31 on the intermediate and output sides, and the difference in material transport length calculated from the material speeds Ve and Vc, and the storage device 22 If the ratio is kept the same as the storage amount L1, the following relationship holds true.

(Ve-Vd)・t/(L1+L2)
=(Ve-Vc)・t/L1
…
(1) From equation (1), the material speed Vc in the second processing section 23 is: Vc=(L1・Vd+L2・Ve
)/(L1+L2)...(2). According to this equation (2), the material speed Vc in the second processing section 23
By controlling this, it is possible to maintain the storage amounts of both storage devices 22 and 31 to be the same, thereby making it possible to operate the storage devices more efficiently.

[0027]

Effects of the Invention According to the present invention, it is possible to make maximum use of the storage capacity of the two sets of storage devices provided due to the necessity of equipment, and it is also possible to automatically correct the amount of storage, and the continuous processing line can improve operational efficiency.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a tracking control device according to an embodiment of the present invention.

FIG. 2 is a time chart showing an example of a control mode by the device in FIG. 1;

FIG. 3 is a system diagram showing the overall configuration of a conventional continuous processing line.

FIG. 4 is a system diagram of main parts of a continuous processing line to which the present invention is applied.

[Explanation of symbols]

ES Inlet section CS Central section C1 First processing section C2 Second processing section DS Outlet section L1 Central section storage device storage amount L2 Output section storage device storage amount Ve Material speed in the first processing section of the center section Vc Center section Material speed Vd in the second processing section Material speed 2 in the outlet section Materials to be processed 3, 6 Pulse transmitters for material speed detection 4, 5 Storage amount detection device 21 Central section first processing section 22 Intermediate storage device 23 Center Section second processing section 31 Output side storage device 40 Speed difference calculation device 41 Storage amount calculation device 42 Speed reference calculation device 43 Drive device of the second processing section

Claims (1)

[Claims] Claim 1: In order to process a continuous plate-shaped material, the material to be processed is transported from an inlet section to an outlet section through a central section having at least a first processing section and a second processing section having different processing capacities. In a follow-up control device for continuous processing equipment, the material to be processed is stored between the input section and the central section, between the first and second processing sections, and between the central section and the exit section, respectively. a material storage device provided for said first material storage device;
and a material storage amount detection means for detecting the amount of material stored in the storage device provided between the second processing sections and the storage device provided between the central section and the outlet section, and the first processing section a material speed detection means for detecting a material speed at the exit section and a material speed at the outlet section; and a material storage amount detected by the material storage amount detection means and a material speed detected by the material speed detection means. A material storage amount of a material storage device provided between the first and second processing sections and a material storage amount of a material storage device provided between the central section and the outlet section are set in a predetermined relationship. a calculation means for calculating a speed standard for the material to be processed in the second processing section for the purpose of controlling the speed of the material to be processed in the second processing section; and a driving means for controlling the speed of the material to be processed in the second processing section in accordance with the speed standard determined by the calculation means. A follow-up control device for continuous processing equipment, characterized by comprising: