JPS582149A - Collision preventing equipment in belt-shaped conveying facility - Google Patents

Abstract

PURPOSE:To enable prevention of collision in such a way that collision of objects to be conveyed against one another is discriminated on the basis of signals from a position detecting means to detect the objects to be conveyed. CONSTITUTION:When the trailing edge of a previous object to be conveyed 4B is detected, with operation of a timer in a collision detecting circuit 8, time measurement is initiated, then the leading edge of a successive object to be conveyed 4A is detected to stop the measurement of the timer, and if the measurement time is abnormally small, it results in discriminating that the collision will be unavoidable. And at the same time as stop command is given to a control driving circuit 300, respectively rising command of a hydraulic cylinder 60 to a control circuit 61, and alarm command to an alarm device 9. Thus, the previous object 4B and an idle roller 5 are completed for their rise up to the determined position, while even if the roller 5 is completed for its rise, the successive object 4A is once fed back to the side of R mill 1, the roller 5 is sent down, and the successive object 4A is kept going ahead.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a collision prevention device for conveying a web at a predetermined speed. The present invention relates to a collision prevention device for a belt-like material conveying facility, which is equipped with a VL-T detail.

Conventionally, this type of 011F type object conveying equipment is known as an apparatus in which a belt-shaped object is conveyed on a plurality of rotationally driven parts. Examples of such strip conveyance equipment include the rough rolling mill (hereinafter referred to as R
Commonly used is a conveyance table between the finishing arc machine (hereinafter referred to as "F") and the finishing press (hereinafter referred to as "F"). The ζO transport table is R (R<4C) for transporting a steel plate as a round belt-shaped object to be transported to the next O row after being roughly compressed. 9. Since the forward arc speeds of the transport table Hiroshi, R<R and F are different, the rollers constituting this table are divided into a plurality of Oa-2 groups, and the above-mentioned four-R detail If the conveyance speed for heating K is made to match this in Rt II, then 4
g and Ftk side are configured so that the polishing speed of these is controlled intermittently.

Figure 1 shows the above-mentioned nine conventional thermal abrasive mills with a straight arc machine and a conveyance table as conveyance equipment! It is a j1 diagram. For this reason, a conveying table 8 is provided as a strip conveying equipment consisting of a group of R (ru l for rough rolling, A?4 ru 2 and OMKt! plural vl-1 for finish rolling). 〉, In front, the ζO conveyance table 3 is the Rξ mill 1
The first 0 μm ridge 30 and 74 l 2 convey four steel plates as subsequent belt-shaped objects at a conveyance speed matching the 0E speed.
O as the preceding belt-shaped conveyed object to suit the 0 pressure moderately.
It is configured to include a second roller roller 31 that decelerates the steel plate 4B and conveys it at a conveyance speed different from that of the second group of rows 30. The first 4-2 details 30 is the 10th control drive device 3
The transport speed of the OIl is controlled by the control drive unit 1110 of the 20th control drive device 1110. In addition, the symbol Lli, the first row 2 group 30
'', which indicates the second roller evaluation B111D demarcation St.

The operation of the conventional example configured as described above is as follows: The steel plate 4 as the object to be conveyed is continuously fc from 1 mil l to Ff le 2.
*Reel 10FE grinding speed is generally 114
)-180 (ml/l1llk).

In contrast, Ftk10 people's speed Il expansion, 8O-110 (phrase/-)teashi, this soft slow rounding Rrul l is extracted from steel I [4
must be slowed down on the transport table 3! There is.

On the other hand, from the viewpoint of improving the efficiency of the conveyance, the rear end of the preceding conveyed object 4B and the tip of the succeeding conveyed object 4B should be moved close to each other by 11 degrees on the conveying table 3. It is desirable to do so. As a result, the O steel plate 4, which is an object to be conveyed at a relatively fast speed, is slowed down on the armpit conveyance table 8, and the tip of the succeeding object 4 is behind the preceding object 4B. To the limit that does not interfere with the edge (usually about S@sat>, mj!t, from the round m to the Fi mill and the preceding conveyed object 4Bt) @lFCw-tsu details 310m1j! The speed is set and controlled.

However, there are 40 types of steel, different thicknesses, widths, lengths, weights, etc., and V<le 1! Since it is necessary to change the set rolling speed of the steel plate 4 and the rolling speed of the R4 wheel 1 accordingly, it is necessary to change the rolling speed of the steel plate 4 and the conveyance
) 3G and 81Ohm coefficients, and other mechanical conditions are subject to change (rounding due to variations, there is a difference in the speed control of the conveyor rollers 30 and 31, and the steel plate 4 has slipped on the conveyor 123). , there was no accident in which the subsequent conveyed object (D@*4A) collided with the steel plate 4B as the preceding conveyed object.

Such a collision of steel plates usually tends to occur near the boundaries IIL of the transport rollers 30 and 310. The 1st is as follows. In other words, P<
k2 side oo-a) Details $1#iF#! The preceding machine is transporting the material 4B in synchronization with the O pressure. On the other hand, the 4 people following the conveyed objects of R building 11110a-2 group 5OFi passed through Rt l and slowed down to Furu zO rolling M1, while the 4 people following the conveyed objects progressed on the conveyance table 3. , Leading conveyed object AAO rear end boundary @LK14m and 9 o'clock I
IaKte, F<k20FE elongation speed, that is, the appropriateness of the preceding conveyed object 4B can be determined. In other words, the preceding conveyed object 4
At the time when the rear end of B completes the slowdown of the succeeding conveyed object 4m at the demarcation point 111LK, the preceding conveyed object 4
It is common to transport the rear end of the BO and the leading ends of the four following conveyed objects closest to each other.When rounding and slowing down, there is a control error of 4 degrees, and due to slipping and other factors, it is near the demarcation line. In this case, OSm between transported objects is likely to occur.

Therefore, if the objects to be transported are K> mutually and a collision occurs, the objects to be transported will be damaged, causing a quality problem. Even if it were to be inserted into the machine without any trouble, there was a risk that the transported object would interfere with other equipment, destroying it and causing a serious accident such as stopping the twin for a long time.

The objective of the present invention is to solve the above-mentioned drawbacks of the conventional technique by rounding and rounding, and to prevent collisions between objects to be transported and roof tiles, as well as to prevent other problems caused by collisions. In order to prevent this, 5KL9 provides a Cao-o prevention device in strip conveying equipment.

The present invention provides a first shaft and a second shaft for transporting a belt-shaped object.
A plurality of idler four rollers are installed at a predetermined distance from the demarcation point of the second e+-7 group and a predetermined width apart from the nine points on the rear side of the second roller. The idle roller is driven up and down between predetermined positions by a lifting device, and position detection means for detecting a belt-shaped conveyed object is provided on the demarcation bell, and a signal from the position detection means is provided. Based on this signal, the center detection circuit Ktjl is included, and the ζ0
It is determined whether or not the ``cII period'' occurs, and when it is determined that the ``cII period'' occurs, the elevating device is raised and at least the 100-2 period is stopped.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

The second case is an explanation of an embodiment of the collision prevention device for conveying a belt-shaped object according to the present invention), No. 9, No. 3E.
Is it an idol H-? C) This is the original drawing of Figure 3 of the 4th Kindergarten, which shows the layout. According to the authors, Section sE presents the example of the book Il.
- In the explanatory diagram shown in the ninth page, 19th, 5th insI-
and 7th WA indicate the state of the idle roller when it moves up and down. In these gardens, the 11i and Oka components are given the same -Q symbol, and the Il- is omitted.

In these figures, a first roller 30 conveys a strip-shaped object at a predetermined speed (1 KCR ζ 10 milling speed) and a strip-shaped object is conveyed at a stone speed (F mill 20 milling speed R) at a difference from the speed mentioned above. The conveying table 3 is equipped with a second 4-2 roller 31 for conveying the object to be conveyed and is configured as a conveying equipment for continuously conveying the belt-shaped object to be conveyed.
A predetermined distance Lx from the demarcation line between the
] The predetermined conduit DKt) is good, and the idler 1 on which the belt-shaped conveyed object 4 can be placed! -45, i- is the above cost -2 group B
A plurality of them are installed in 104 and ■-chi. This O idle 4-j) s%5, - is a hydraulic cylinder io, go, -o sliding which constitutes a part of the lifting device I6 whose both ends can be moved up and down between predetermined positions. It is supported by 60 rods and can be moved up and down. The idler a-9 is stopped below the pass line 1 of the conveyed object 4, as shown by the dotted line □ in FIGS. It is designed so that it rotates in synchronization with the K. At that position of the drive device 6, there is no interference between the preceding conveyed object 4B and the four following conveyed objects, and the succeeding conveyed object 4M can enter below the preceding conveyed object 4BC).

The position detection means 7 is composed of a steel plate detector such as a hot mass detector (HMD), and is provided on the demarcation line of the first and second O-9 groups. Object 4 can be detected and output as an electrical signal. The signal from this position detection II7 is the collision detection circuit sK*j
), this collision detection circuit 8 makes a 94J determination as to whether or not a collision will occur between the belt-shaped conveyed objects based on this No. 1, and determines that a collision will occur.
IK above lift I! It is now possible to output a rounding command to raise the I device and stop the 10th roller detail 30. More specifically, when the collision detection circuit 8 detects the rear end of the preceding conveyed object 4BO by the position detection means 7 and inputs the signal, the collision detection circuit 8 detects the rear end of the preceding conveyed object 4BO, and when the collision detection circuit 8 receives the signal, the collision detection circuit 8 detects the rear end of the preceding conveyed object 4BO. , and then the subsequent conveyed object 4
It measures time until the moment when the position detection means 7 detects the tip of the arm, and when the measured time is abnormally short, it is determined that a collision will occur, and a stop command is output to the control drive couple SOO, and the first drive couple 18 □Control circuit 6 that constitutes a part
1 to output a rising command. The intermediate determination time may vary depending on the speed of the preceding or following conveyed object, the conveyance roller sO, and the equipment conditions of the conveyor roller 310, but it may be determined experimentally during operation. Generally, there is an O time interval from the passing of the rear end of the preceding conveyed object 4BO to the tip end of the succeeding conveyed object 4 BO (usually this is defined as part-per (1&r).
to bar ) time. ) a, 6 in front of Pζ le 2
Since it is ~10 seconds, it is desirable to set the Tokioka line 3~S second l1 degree for the Todorobon crash judgment. Nashi%1? ! Reference numeral 9 denotes an alarm device, which issues an alarm based on a command from the center detection circuit 8. The preceding object to be transported 411 was raised by the idle low 25, but as shown in Fig. 1S (Rin), when the lifting was completed, the four objects to be transported by K11m were put into an emergency stop and were in good condition. If it moves by the maximum Lx, the idle low ysa demarcation line must also be placed at a distance Lx greater than Itxo. At t7'h, if the maximum stopping distance of the following conveyed object is 1sL y l YO, then it is necessary to deploy idle roots 6 up to LY (1 s L y y p). Therefore, in ITR-25, the distance from the idle roller 5 of the most R building 1 @ Yoshi at the demarcation line Lt is L If LY, then L Sumio<Lx and round cutlet LYO<LY~D"
L.

It is necessary to arrange the ITR-2 units so that they are LXs.

Constructed as described above, 9l! The effect of the argument will be explained below.

As shown in FIG. 5 (1), when the position detecting means 1 detects the rear end of the preceding conveyed object ABC), the object is taken into the transport path 8, SooB based on this signal
Activate the timer inside the road entrance and start the time OItbuchi from #l,
Next, in (1) of the same figure, the position detecting means 1 detects the leading edge of the following conveyed object 4, and the signal is taken into the collision detecting circuit 8 to stop the timer O measurement. If the count is very small, the collision detection circuit 8 will
It is determined that a collision has occurred, and a command to stop the control drive circuit aoOK is issued, and a command to raise the hydraulic cylinder 60 of the drive scissors I6 is output to the control circuit 61, and an alarm F7 is also issued.
Outputs an alarm command to &19. In this case, an emergency stop command is output to both the collision detection circuit 8 and the control drive circuit 300, so that lN#! By the time the four conveyed objects have progressed by KLx, as shown in FIG. --Complete the ascent to the 1o position as shown. Do it, Idol 4-
j) Even if i completes the ascent as shown in No. 61 (rin),
As shown in FIG. 5 (P/), the subsequent conveyed object 4m is
progress and stop. However, since it operates in this way, the tip of the succeeding conveyed object 4 is widened, and the leading conveyed object 4 is widened.
BC) There is no interference with the rear end, and collisions between the transported objects are completely avoided.

After that, the operator who detected the collision warning by the alarm 9 confirms that the advance of the preceding transported object 4B has definitely completed, as shown in FIG. Conveyed object 4
Place one person R (to the side R1 so that it does not interfere with the idle roller 5).
(i.e., at least 4 L in 5 as shown in Figure 5 CM)
x, 0 position), the idle roots 5 are lowered from the ascending position IU to the standby position 11, and the following four people are allowed to proceed again.

In this manner, mutual collision between the objects 4 to be transported is avoided, other equipment is not destroyed at all, and protection is achieved very effectively.

FIG. 8 is an explanatory diagram showing another embodiment of the present invention. In the embodiment of this figure, the same components and the same 040 as in the previous embodiment are given the same reference numerals for explanation. If this embodiment differs from the 餉子-斯embodiment, it is expanded to ζ, and the setting on the demarcation line is 9 position detection 1,000*to, in addition, from this demarcation line, R1 @K
The point is that the 20th position detection means γ is installed on @L, which is separated by distance W, and this distance W is set to the distance at which the center of gravity is expected to occur. It is desirable that these seven position detecting means 20 be able to move in the direction indicated by the arrow R19 in the figure F depending on the type of steel, etc. And position detector R
The signals from 7 and 7 people are input into the collision detection circuit 8,
Both position detection means? If detection signals were obtained from Th and 7 at the same time, it was determined that there was a collision, and the aforementioned aircraft 11511
It is %O that causes the 1i1 O avoidance operation to be performed.

By doing so, there is an effect that collisions can be avoided in the same way as in the first embodiment.

In the above oaa, lIlkigTJaFckke bRt Rust! The explanation has been given using the conveyance table 3 as an example, but it goes without saying that in conveyance equipment where belt-shaped objects are conveyed, buds occur between the objects to be conveyed, and it is necessary to apply it to the middle part. It is possible), but it is not possible even if it is in a thermoelectric factory.

As described above, according to the present invention, the OII center of the transported objects is determined based on the signal from the position detection means that detects the transported objects on the transport equipment, and the trailing portion of the preceding transported object is detected. By stopping the conveyance of the subsequent conveyed objects in order to raise the conveyance, collisions between the conveyed objects can be prevented, and other accidents can be prevented from occurring. .

[Brief explanation of drawings]

Figure 2 shows the rolling mill and conveyance equipment, Figure 2 shows an embodiment of the present invention, Figure 3 shows the layout of the idle rollers, Figure 4 shows the layout of the idle rollers, 3
vAo construction diagram, explanation shown in ``Explaining the operation of FIA-1 6th cabinet idle row 2'', No. 781 enlarged view of No. 6-OL, No. 8 The figure is a diagram showing another embodiment of the present invention. 3... Conveyance equipment, 30-... First loaf tray, 31.
・Second row 2 group, 4-・Band-shaped conveyed object, ・Idle roller, 6-Drive device, 7-・Position detecting means, 8
-・Shinhata detection circuit, fist...alarm device, 60-hydraulic cylinder, 61-control circuit. Agent Tatsuyuki Unuma (and 2 others)

Claims (1)

[Claims] 10th row, )lFl!, which conveys each belt-shaped conveyed object at a predetermined speed. and No. 204-A, and a conveying device for conveying said belt-shaped objects in succession; Two tQa-2 group side KWr are provided across the constant O width,
and idle roots on which the belt-shaped conveyed object can be placed;
A lifting position for driving the idler E1-2 up and down between predetermined positions, a position detecting means provided on the conveying equipment and detecting the belt-shaped object to be conveyed, and a signal from the position detecting means. Take this into this signal! When it is determined that no collision has occurred between the belt-shaped objects to be transported, the lifting device is raised and at least 4 groups of the transport equipment are stopped. Collision prevention device suitable for belt-shaped object conveyance equipment, which includes a collision detection circuit.