JP6837721B2 - Conveyor roller condition management system - Google Patents

Description

According to the present invention, in a roller type transfer device provided with a plurality of transfer rollers for conveying a work, the state management of the transfer rollers is such that the deformation amount of each of the above-mentioned transfer rollers is detected and the state of each transfer roller is managed. It's about the system. In particular, in a roller type transfer device provided with a plurality of transfer rollers, the amount of deformation in each transfer roller is detected, the deformation state in each transfer roller is determined, the state of each transfer roller is appropriately managed, and the transfer roller is used. It is characterized in that it is possible to easily replace the deteriorated transport roller at an appropriate time before it becomes unusable due to deformation.

In processing while transporting a work in a heat treatment furnace or the like, conventionally, a plurality of transport rollers are arranged in the transport direction of the work at required intervals, and the work is transferred by the transport rollers arranged in this way. Roller-type transport devices that are designed to transport are widely used.

Here, when a plurality of transfer rollers are arranged in the transfer direction of the work through a required interval as described above to transfer the work in a heat treatment furnace or the like, the transfer rollers are gradually transferred by heat or the like. There is a problem that the work is deteriorated and the transfer roller is broken or deformed, which makes it difficult to properly transfer the work by the roller type transfer device.

Conventionally, as shown in Patent Document 1, an electrode portion is formed on a part of the outer peripheral surface on the one end side of each roller, and for each roller, an electrode portion is formed on the outer peripheral surface on the forming side. While arranging contacts that come into contact with the surface, each contact is connected to an electrode portion that accompanies the rotation of each transport roller and a detecting means that detects electrical conduction or non-conduction via the contact. It has been proposed that a breaking of a roller is detected by a detecting means.

However, when the detection means is used to detect that each roller is broken in this way, in a heat treatment furnace or the like, it is necessary to stop the work of transporting the work by the roller when the roller is broken. Since productivity is greatly reduced and the rollers cannot be predicted to break, it is not possible to predict how much replacement rollers should be prepared, and the rollers are ready to be replaced. There was a problem that it became difficult.

Further, in Patent Document 2, when the work is conveyed by a roller type transfer device provided with a plurality of transfer rollers in a heat treatment furnace or the like, the transfer rollers are gradually deformed by heat or the like, so that the transfer rollers are rotated. A control means for controlling the rotation of the motor to be driven is provided, and the control means is provided with a means for aligning the center of gravity of the transfer roller and a means for correcting the bending of the transfer roller for forcing the bending of the transfer roller. Things have been proposed.

Then, in the case of Patent Document 2, when the transfer roller is deformed by heat in a heat treatment furnace or the like, the rotation of the motor that rotationally drives the transfer roller is controlled by the control means, and the position of the center of gravity shifts. It has been proposed that the deformed transfer roller is maintained in a predetermined state for an appropriate time to correct the state of the deformed transfer roller.

However, in order to control the rotation of the motor that rotationally drives the transport roller to correct the deformed transport roller in the state of the transport roller deformed by heat in this way, the control is very troublesome and time is required. There was a problem that productivity was greatly reduced. Further, it may be difficult to properly correct the deformed transport roller as described above. In this case, it is necessary to replace the deformed transport roller, as in the case of Patent Document 1 described above. Similarly, there is a problem that it is not possible to predict how much a replacement transfer roller should be prepared, and it becomes difficult to prepare for replacement of the transfer roller.

Japanese Unexamined Patent Publication No. 8-110168 Japanese Unexamined Patent Publication No. 2008-185231

According to the present invention, in a roller type transfer device provided with a plurality of transfer rollers for conveying a work, the amount of deformation in each transfer roller is appropriately detected, the deformation state in each transfer roller is determined, and the state of each transfer roller is determined. It is an object of the present invention to manage appropriately so that the deteriorated transfer roller can be easily replaced at an appropriate time before the transfer roller is deformed and cannot be used.

In the transport roller state management system according to the present invention, in order to solve the above-mentioned problems, in the transport roller state management system in the roller-type transport device provided with a plurality of transport rollers for transporting the work, the transport is described above. As a deformation amount detection sensor that detects the deformation amount of the roller, at least one of a bending amount measuring sensor that measures the bending amount of the roller shaft in the transport roller and an elongation amount measuring sensor that measures the elongation amount of the roller shaft in the transport roller. And a discrimination device that discriminates the deformation state of the transport roller based on the deformation amount of the roller shaft in the transport roller detected by the deformation amount detection sensor, and each transport roller based on the discrimination result by this discrimination device. A management device for managing the state is provided, and based on the discrimination result by the discrimination device, the management device manages the replacement timing of each transport roller so that each transport roller is replaced .

Then, like the state management system of the transfer roller, the deformation amount of the roller shaft in the transfer roller is detected by the deformation amount detection sensor, and the deformation amount of the roller shaft in the transfer roller detected by the deformation amount detection sensor is calculated. Based on this, if the deformed state of the transport roller is discriminated by the discriminating device and the state of each transport roller is managed by the management device based on the discriminant result of this discriminating device, the transport roller is deformed and cannot be used. At the stage, it becomes possible to easily confirm the deformed state of the transport roller to be replaced and the number and position thereof.

Here, in the state management system of the transport roller, it is possible to provide a communication means for communicating the discrimination result by the discrimination device to the management device. Then, when the discrimination result by the discrimination device is communicated to the management device by the communication means in this way, for example, by installing the management device in a manufacturer that manages the maintenance of the transfer roller, the transfer roller can be made. Before it is deformed and cannot be used, the deformed state of the transport rollers and the number and position thereof can be easily confirmed, and the number of transport rollers to be replaced can be prepared in advance.

Then, in the state management system of the transport roller of the present invention, based on the discrimination result by the discriminating device as described above, it manages the replacement timing of each transport roller by the management device, based on the management result by the management device and to carry out the exchange of the transport roller Te. In this way, the deteriorated transfer roller in the roller type transfer device can be replaced immediately at an appropriate time.

In the state management system of the transfer roller in the present invention, as described above, a bending amount measurement sensor for measuring the bending amount of the roller shaft in the transfer roller and an elongation amount measuring sensor for measuring the elongation amount of the roller shaft in the transfer roller are used. the deformation amount detection sensor had detected the amount of deformation of the roller axis in the transport roller, on the basis of the deformation amount of the roller shaft in the transport roller is detected by the deformation amount detection sensor, to determine a deformation state of the transport roller by discriminating device , Based on the discrimination result by this discrimination device , the state of each transport roller is managed by the management device, the replacement timing of each transport roller is managed, and each transport roller is replaced, so that the transport roller is deformed. It becomes possible to easily confirm the deformed state of the transport roller to be replaced and the number and position thereof before it becomes unusable.

As a result, in the present invention, the deteriorated transfer roller in the roller type transfer device can be replaced at an appropriate time, and the productivity in the heat treatment furnace or the like can be prevented from being lowered.

In the embodiment of the present invention, it is a schematic cross-sectional view in the vertical direction along the longitudinal direction showing a state in which a work is conveyed by a roller type transfer device in a heat treatment furnace to perform heat treatment. In the above-described embodiment, a plurality of transport rollers are arranged in the transport direction in which the workpiece is transported with a required interval, and the amount of deformation of the roller shaft in each transport roller is determined by a bending amount measuring sensor and an elongation amount measuring sensor. A configuration is configured in which the deformation amount detection sensor detects, the deformation state of the transport roller is discriminated by the discriminant device based on the detected deformation amount of the roller shaft, and the discriminant result is communicated to the management device that manages the state of each transport roller. It is a partial cross section explanatory view in the lateral direction along the shown longitudinal direction. In the above embodiment, taking one transport roller in the roller type transport device as an example, the deformation amount of the roller shaft in the transport roller is detected by a deformation amount detection sensor including a bending amount measuring sensor and an elongation amount measuring sensor. , The direction intersecting the transport direction, which shows the configuration in which the deformation state of the transport roller is discriminated by the discriminating device based on the detected deformation amount of the roller shaft, and the discriminant result is communicated to the management device that manages the state of the transport roller. It is a schematic cross-sectional explanatory view in. It is a schematic sectional drawing in the vertical direction which shows the roller type transfer apparatus which winds and conveys a strip-shaped work.

Hereinafter, the state management system for the transport roller according to the embodiment of the present invention will be specifically described with reference to the accompanying drawings. The state management system for the transport roller according to the present invention is not limited to the one shown in the following embodiment, and can be appropriately modified and implemented without changing the gist of the invention.

Here, in FIG. 1, when transporting the work W from the carry-in inlets 11 on both sides in the longitudinal direction of the heat treatment furnace 10 toward the carry-out outlet 12, the work W is conveyed by a plurality of transfer rollers 21 as the roller type transfer device 20. It is arranged in the direction via the required interval. The work W is described here as a strip-shaped steel strip (metal strip), but any work W may be used as long as it can be conveyed by a roller.

Then, in the roller type transfer device 20, as shown in FIGS. 2 and 3, both ends of the roller shaft 21a of each transfer roller 21 are provided on both sides of the work W of the heat treatment furnace 10 along the transfer direction. Through the side wall 13, the bearing members 22 and 23 provided on the outside of the side wall 13 are rotatably held.

Here, at one end side of the roller shaft 21a in each of the above-mentioned transport rollers 21, the end portion of the roller shaft 21a is held by a commercially available bearing member 22 which is rotatably held so as not to be displaced in the vertical direction and the axial direction. I try to let you. On the other hand, on the other end side of the roller shaft 21a in each transport roller 21, a commercially available bearing member 23 that rotatably holds the end portion of the roller shaft 21a so that it can extend in the axial direction or bend in the vertical direction. I try to keep it.

Further, in this embodiment, as described above, each transport roller 21 is rotatably held by the bearing member 23 so that the end portion of the roller shaft 21a can extend in the axial direction or bend in the vertical direction. On the other end side of the roller shaft 21a, the roller shaft 21a rotatably held by the bearing member 23 through the side wall 13 as a deformation amount detection sensor 30 for detecting the deformation amount of each transport roller 21. At the end, a bending amount measuring sensor 31 for measuring the bending amount in the vertical direction of the roller shaft 21a and an elongation amount measuring sensor 32 for measuring the elongation amount of the roller shaft 21a are provided.

Then, in this embodiment, the amount of bending of the roller shaft 21a in each transport roller 21 measured by the above-mentioned bending amount measuring sensor 31 in the vertical direction and each of the conveying rollers 21 measured by each of the above-mentioned elongation amount measuring sensors 32. The amount of elongation in the axial direction of the roller shaft 21a in the above is output to the discriminating device 40, and the amount of bending of the roller shaft 21a in the transfer roller 21 in the vertical direction and the amount of extension of the roller shaft 21a in the transfer roller 21 in the axial direction. Based on the above, the discriminating device 40 discriminates the deformed state of each transport roller 21.

Next, the vertical bending amount of the roller shaft 21a in each transport roller 21 measured by each bending amount measuring sensor 31 and the axial direction of the roller shaft 21a in each transport roller 21 measured by each elongation amount measuring sensor 32. The result of the deformed state of each transport roller 21 discriminated by the discriminating device 40 is output to the management device 50 by a communication means 60 such as the Internet, and the result output from the discriminating device 40 is obtained. Based on this, the management device 50 manages the result of the deformed state of each transfer roller 21 and manages the replacement time of each transfer roller 21.

In this way, based on the amount of deformation in each transport roller 21 measured by the deformation amount detection sensor 30 using each bend amount measurement sensor 31 and each elongation amount measurement sensor 32, in each transport roller 21 by the discriminating device 40. If the deformed state is discriminated and the result of the deformed state of each transport roller 21 is managed by the management device 50 based on the discriminant result by the discriminating device 40, each transport roller 21 is deformed and cannot be used. At the previous stage, it becomes possible to easily confirm the replacement time of each transport roller 21 and the number and position of the transport rollers 21 to be replaced.

Here, in order to communicate the discrimination result by the discrimination device 40 to the management device 50 by the communication means 60 as described above, by installing the management device 50 in a manufacturer or the like that manages the maintenance of the transport roller 21, each transport is performed. Before the rollers 21 are deformed and become unusable, the deformed state of each transport roller 21 and its number and position can be easily confirmed, and the quantity of the transport rollers 21 to be replaced is prepared in advance. In the type transfer device 20, the deteriorated transfer roller 21 can be appropriately detected, and an appropriate number of transfer rollers 21 can be replaced immediately at an appropriate time.

The "appropriate time" referred to here corresponds to a maintenance date or the like in which the operation of the equipment using the roller type transfer device 20 is predetermined to be stopped. Since the user of the equipment plans the production amount including the maintenance day, if the equipment can be replaced on the maintenance day using the present invention, the production amount will not decrease.

Further, the communication means 60 for communicating the discrimination result may be any communication means such as wired communication, wireless communication, and the Internet, and the discrimination device 40 and the management device 50 may be located at a remote location. Similarly, the deformation amount detection sensor 30 and the discrimination device 40 may be connected by communication means and arranged at a remote location.

Further, the management device 50 may be installed in a parts manufacturer or the like that manufactures the transport roller 21, and the required number of transport rollers 21 to be replaced in advance may be manufactured in advance and delivered to the equipment user by the maintenance date. Good. By doing so, it is possible to prevent the equipment user from forgetting to place an order and not being able to replace the equipment, which may cause troubles in the equipment.

Further, in the present embodiment, the work W is placed on the transport roller 21 and transported, but in addition to such a mode, the “convey” transports the strip-shaped work W'as shown in FIG. Any form may be used, such as a form of transporting while winding around the roller 21'.

As a result, in this embodiment, only the deteriorated transfer roller 21 in the roller type transfer device 20 provided in the heat treatment furnace 10 can be easily replaced at an appropriate time, and the productivity in the heat treatment furnace 10 is lowered. Will be able to prevent.

Further, although the heat treatment furnace 10 is taken as an example here, it goes without saying that it can also be used for the transfer rollers of other equipment.

10: Heat treatment furnace 11: Carry-in port 12: Carry-out port 13: Side wall 20: Roller-type transport device 21, 21': Transport roller 21a: Roller shaft 22: Bearing member 23: Bearing member 30: Deformation amount detection sensor 31: Bending amount Measurement sensor 32: Elongation measurement sensor 40: Discrimination device 50: Management device 60: Communication means W, W': Work

Claims (2)

In a transport roller state management system in a roller-type transport device provided with a plurality of transport rollers for transporting workpieces, the amount of bending of the roller shaft in the transport roller is measured as a deformation amount detection sensor for detecting the deformation amount of the transport roller. At least one of a bending amount measuring sensor and an elongation amount measuring sensor for measuring the elongation amount of the roller shaft in the transport roller is provided, and the deformation amount of the roller shaft in the transport roller detected by the deformation amount detection sensor is set. A discriminating device for discriminating the deformation state of the transport roller based on the discriminating device and a management device for managing the state of each transport roller based on the discriminating result by the discriminating device are provided, and the management is performed based on the discriminating result by the discriminating device. A transport roller state management system characterized in that the replacement timing of each transport roller is managed by an apparatus and each transport roller is replaced. The transfer roller management system according to claim 1 , wherein the deformation amount detection sensor is provided with a communication means for communicating the discrimination result by the discrimination device to the management device.

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