JPH0263835A - Guide roller equipment for preventing meandering of belt - Google Patents

Abstract

PURPOSE:To reduce contact force between a belt and guide rollers and also to detect the contact force by fitting the adjacent guide roller bearings to the same beam and connecting the central part of the adjacent beams with a support and thereby constituting an action force equalizer. CONSTITUTION:An action force equalizer 5 is constituted of the adjacent guide roller bearings 4 and furthermore connected with a support 6. Thereby contact force of a belt 1 can be always dispersed uniformly to respective guide rollers and contact pressure between the belt and the guide rollers can be reduced by being inversely proportional to the number of the guide roller. Furthermore the inside tumble stoppers 7 are fitted to the supports 6 of the guide rollers arranged to both sides of the belt 1 and the supports of both sides are connected via a contact force detector 3. Thereby the guide roller supports on the opposite side receive contact force of the belt. The contact force of the belt which is caused in either single side at random by meandering of the belt can be measured with one set of detector.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a guide roll device for preventing belt meandering.

[Conventional technology]

In order to adjust the meandering displacement of an endless belt using a stretchable belt material, a method of controlling the belt by unevenly applying tension is generally used. However, since the metal belt material has extremely little expansion and contraction, the response to the meandering adjustment operation is extremely slow.

Moreover, as the thickness increases and the belt width increases relative to the length, this tendency becomes even more pronounced. Therefore, the adjustment operation is performed by setting the meandering adjustment to a large value, but by arranging a large number of guide rolls on both sides of the belt, providing flanges on the belt pulley drum, or gluing guide ropes to the belt. There is.

[Problem to be solved by the invention]

When the above-mentioned guide roll system is examined in detail, there is a problem in that both ends of the belt exhibit buckling deformation or a wavy shape as they repeatedly come into contact with the rolls. The reason is,
This is because the contact area between the belt and the roll is small, and therefore the contact pressure easily reaches the yield stress or higher.

Even if the diameter of the rolls is increased, there is a space restriction, and even if the number of rolls is increased, both ends of the belt are not perfectly straight, so there will always be uneven contact, and one of the rolls will come into contact with the belt, causing the belt to deform. Further, there is a problem that the contact pressure applied to the guide roll cannot be accurately detected.

In view of the above-mentioned problems of the guide roll system, the present inventor conducted further detailed studies. FIG. 4 is a plan view showing a plurality of guide rolls arranged at both ends of the belt. Since both ends of the belt 1 are not strictly straight, the guide rolls 2 do not come into even contact with each other. Furthermore, in order to detect the contact force, it is necessary to attach contact force detectors 3 to all guide rolls as shown in FIG.

The present invention aims to solve the above problems.

shall be.

[Means for Solving the Problems] The present invention provides a method in which adjacent roll bearings among a plurality of guide roll shafts are mounted on the same beam, the central portions of the adjacent beams are similarly connected by a beam, and a working silk equalizer is installed. This is a guide roll device configured as shown in FIG.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an example in which there are four guide rolls, a working silk equalizer 5 is constituted by a roll bearing 4, and a pillar 6
Connect to.

[Effect]

According to the present invention, the contact force of the belt can always be evenly distributed to each guide roll, and the contact pressure between the belt and the rolls can be reduced in inverse proportion to the number of guide rolls.

Due to the working silk equalizer, the belt contact force is concentrated on the column 6 via each guide roll. It is possible to attach a contact force detector 3 to each of the columns 6.

[Embodiment 1] As shown in FIG. 2, inner fall prevention stoppers 7 are attached to the pillars of the guide rolls arranged on both sides of the belt 1, and the pillars on both sides are connected via the contact force detector 3. The belt contact force is received by the opposite guide roll support,
It is possible to measure the belt contact force randomly generated on either side of the belt as it meanders with a single detector.

[Example 2] The embodiment of the present invention of the 40 unit type shown in Fig. 1 was
Used for endless steel belt press. Figure 3 shows the overall diagram. Although the machine was operated without any meandering adjustment operation, the meandering could be stabilized to ±5 mm. Furthermore, no deformation of the belt end was observed, and stable operation could be continued.

[Effects of the Invention] The device of the present invention sufficiently prevents the belt from meandering.
Moreover, no deformation of the belt end was observed at all.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of an embodiment of the present invention, Fig. 2 is a schematic side view showing an example equipped with a contact force detection mechanism, and Fig. 3 is a schematic diagram of a belt brace using the device of the present invention. 4 and 5 are schematic diagrams showing conventional examples. 1 Belt 2 Guide roll 3 Contact force detector 4 Roll bearing 5 Working silk equalizer 6
Prop strike, Pa 8 Double helt press 9 Guy and roll device/4 also on top Figure Figure Figure Figure Figure Figure

Claims (1)

[Scope of Claims] 1. A guide roll device for preventing belt meandering, which is constructed by attaching adjacent guide roll bearings to the same beam and further connecting the central portions of the adjacent beams by a beam to form a working silk equalizer. 2. The guide roll device for preventing belt meandering according to claim 1, further comprising a belt contact force detection mechanism. 3. The belt meandering prevention device according to claim 2, wherein the guide roll device support parts disposed on both sides of the belt are connected via a belt contact force detector so that the belt contact force acting on both sides can be detected. Guide roll device.