TWI662244B - Conveying roller state management system - Google Patents

Abstract

A deformation amount detection sensor 30 for detecting the amount of deformation of the conveying roller is provided in a state management system of the conveying roller of the roller-type conveying device 20 having a plurality of conveying rollers 21 for conveying the workpiece W, and It is provided with a determination device 40 for determining the deformation state of the conveying roller based on the amount of deformation of the roller shaft of the conveying roller detected by the aforementioned deformation amount detection sensor; and a management device 50 for judging according to the determination device As a result, the state of each conveyance roller is managed.

Description

Condition management system of conveying roller

The invention relates to a status management system of a conveying roller, which is a roller-type conveying device provided with a plurality of conveying rollers for conveying a workpiece, and detects the deformation amount of each of the conveying rollers, and further manages the status of each conveying roller. By. In particular, it has the following characteristics: In a roller-type conveying device provided with a plurality of conveying rollers, the amount of deformation of each conveying roller is detected to determine the deformed state of each conveying roller, and the state of each conveying roller is appropriately managed. In the stage before the conveying roller is deformed and becomes unusable, the deteriorated conveying roller can be simply exchanged at an appropriate time.

When processing a workpiece while it is being transported in a heat treatment furnace or the like, a roller-type conveying device has conventionally been widely used, and a plurality of conveyance rollers are arranged at a desired interval in the conveyance direction of the workpiece. , And the conveyance roller configured in this way is used to convey the workpiece.

Here, when the roller-type conveying device arranged by using a plurality of conveying rollers at a desired interval in the conveying direction of the workpiece as described above is conveyed in a heat treatment furnace or the like, the conveying rollers may be damaged due to heat. Gradually deteriorated due to waiting, resulting in damage or deformation of the conveying roller, making it difficult to use the roller Type of conveying device to properly convey the workpiece.

In addition, as shown in Patent Document 1, conventionally, a technical content has been proposed in which an electrode portion is formed on a part of an outer peripheral surface of one end portion side of each roller, and an outer periphery of a side where the electrode portion is formed is disposed and disposed on each roller. Contact means for surface contact are connected to each contact means, and the detection means detects the electrical conduction and non-conduction through the electrode portion and the contact means along with the rotation of each conveying roller, and the detection means is used to detect Detect breakage of rollers.

However, when using this kind of detection method to detect that each roller has been broken, in a heat treatment furnace or the like, it is necessary to stop the work of transporting the workpiece by the roller at the time when the roller has been broken, which will greatly reduce productivity. And, because the roll breakage cannot be predicted, it is impossible to predict the extent to which the roll for replacement is to be prepared, and there is a problem that the preparation of the roll is difficult to perform.

Furthermore, in Patent Document 2, the following technical content has also been proposed: when a workpiece is to be transferred by a roller-type transfer device provided with a plurality of transfer rollers in a heat treatment furnace or the like, the transfer rollers It will be gradually deformed due to heat, etc. Therefore, a control means for controlling the rotation of the motor for rotating the conveying roller is provided, and the control means is provided with a center-of-gravity alignment means for aligning the center of gravity position of the conveying roller. , And the bending correction method of the carrying roller forcibly carrying out the bending of the carrying roller.

Then, in the technique of Patent Document 2, it is proposed to control the rotation of a motor for rotationally driving the transport roller by the aforementioned control means when the transport roller is deformed by heat in a heat treatment furnace or the like, And the conveying roller whose position of the center of gravity is shifted or deformed maintains a predetermined state for an appropriate time, and the state of the deformed conveying roller is corrected.

However, for such a state of the conveying roller deformed by heat, in order to control the rotation of a motor for rotationally driving the conveying roller to correct the deformed conveying roller, the control is very troublesome and requires time, There is a problem that productivity will drop significantly. Furthermore, it may be difficult to properly rectify the deformed conveying rollers in the manner described above. In this case, it is necessary to exchange the deformed conveying rollers, and it is impossible to predict the conveying for exchanges as in the case of the aforementioned Patent Document 1. To what extent the rolls must be prepared, there is a problem that the preparation for exchanging the conveying rolls is difficult.

[Prior technical literature] [Patent Literature]

Patent Document 1: Japanese Unexamined Patent Publication No. 8-110168

Patent Document 2: Japanese Patent Application Laid-Open No. 2008-185231

An object of the present invention is to appropriately detect the deformation state of each of the conveying rollers in a roller-type conveying device provided with a plurality of conveying rollers for conveying a workpiece, and to appropriately manage each of the conveying rollers. In the state of the conveying roller, it is possible to simply exchange the deteriorated conveying roller and the like at an appropriate period in a stage before the conveying roller is deformed and becomes unusable.

In order to solve the aforementioned problems, the status management system of the transfer roller of the present invention is provided in the status management system of the transfer roller of the roller-type transfer device provided with a plurality of transfer rollers for transferring workpieces. The deformation amount detection sensor of the deformation amount of the conveyance roller is further provided with a determination device that judges the conveyance roller based on the deformation amount of the roller shaft of the conveyance roller detected by the aforementioned deformation amount detection sensor. A deformed state; and a management device that manages a state of each of the conveyance rollers based on a determination result of the foregoing determination device.

Furthermore, as a specific example of the deformation amount detection sensor, at least one of a bending amount measurement sensor and a telescopic amount measurement sensor is provided, and the bending amount measurement sensor measures a transfer roller. The amount of bending of the roller shaft of the roller shaft, and the amount of expansion and contraction measuring sensor measures the amount of expansion and contraction of the roller shaft of the conveying roller.

And, like the state management system of the conveyance roller of the present invention, the deformation amount of the roller shaft of the conveyance roller is detected by the aforementioned deformation amount detection sensor, and the conveyance roller detected by the sensor is detected based on the deformation amount detection sensor. The deformation state of the conveying rollers is determined by the judging device by the amount of deformation of the roller shaft, and the state of each conveying roller is managed by the management device according to the judging result of the judging device. In the previous stage before it became unusable, simply check the deformed state of the transfer rollers to be exchanged, their number, and their positions.

Here, a communication means may be provided in the state management system of the conveyance roller, and the communication means communicates the determination result of the determination device to the management device. And, as mentioned above, by the communicator When communicating the determination results of the determination device to the aforementioned management device, for example, by setting the management device to a manufacturer that manages the inspection of the transport roller, it can be in the stage before the transport roller is deformed and becomes unusable. , Simply confirm the deformed state of the conveying rollers and their number, position, etc., and the number of conveying rollers to be exchanged can be prepared in advance.

In addition, in the management system of the aforementioned transport rollers, the exchange period of each transport roller can be managed by the aforementioned management device based on the determination result of the aforementioned discrimination device, and the transport rollers can be exchanged according to the management result of the management device. . In this way, the deteriorated conveying rollers in the roller conveying device can be immediately exchanged at an appropriate time.

In the state management system of the conveyance roller of the present invention, the deformation amount of the roller shaft of the conveyance roller is detected by the deformation amount detection sensor as described above, and the conveyance roller detected by the deformation amount detection sensor is based on the deformation amount detection sensor. The deformation state of the roller shaft is determined by the determination device by the determination device, and the state of each transportation roller is managed by the management device based on the determination result of the determination device. Therefore, it can be changed when the transportation roller is deformed. In the previous stage, if it is impossible to use, simply check the deformed state of the conveying roller, its number and position.

As a result, in the present invention, the transport rollers that have been deteriorated in the roller transport device can be exchanged at an appropriate time, and the productivity of the heat treatment furnace and the like can be prevented from being lowered.

10‧‧‧Heat treatment furnace

11‧‧‧ entrance

12‧‧‧ moved out

13‧‧‧ sidewall

20‧‧‧Roller conveying device

21, 21’‧‧‧ transport roller

21a‧‧‧ roller shaft

22, 23‧‧‧bearing components

30‧‧‧ Deformation detection sensor

31‧‧‧bending measurement sensor

32‧‧‧ Telescopic measuring sensor

40‧‧‧Discrimination device

50‧‧‧ management device

60‧‧‧ Means of communication

W, W’‧‧‧ artifact

FIG. 1 is a schematic cross-sectional view in the longitudinal direction of a state in which a workpiece is transported by a roller-type conveying device in a heat treatment furnace and heat-treated in an embodiment of the present invention.

FIG. 2 shows that in the foregoing embodiment, a plurality of conveyance rollers are arranged at a desired interval along the conveyance direction of the conveyed workpiece, and is composed of a bending amount measuring sensor and a telescopic amount measuring sensor. The deformation amount detection sensor detects the deformation amount of the roller shaft of each conveying roller, and determines the deformation state of the conveying roller by a judging device according to the detected deformation amount of the roller shaft. An explanatory view of a partial cross-section along the long-side direction of the configuration in which the management device that manages the status of each conveying roller communicates.

Fig. 3 is a diagram showing the deformation amount detection sensor constituted by a bending amount measuring sensor and a telescopic amount measuring sensor using one of the conveying rollers of the roller conveying device as an example in the foregoing embodiment. The deformation amount of the roller shaft of the conveying roller is detected, and the deformation state of the conveying roller is judged by a judging device based on the detected amount of the deformation of the roller shaft, and the determination result is used to manage the state of the conveying roller. A schematic cross-sectional explanatory view of a configuration in which the management device performs communication in a direction intersecting with the conveying direction.

FIG. 4 is a schematic cross-sectional view showing a longitudinal direction of a roller-type conveying device that winds a belt-shaped workpiece and conveys it.

Hereinafter, the condition management system of the conveyance roller according to the embodiment of the present invention will be specifically described based on the accompanying drawings. In addition, the condition management system of the conveying roller of the present invention is not limited to that shown in the following embodiments, The scope of the change of the subject matter of the invention can be appropriately changed and implemented.

Here, in FIG. 1, when the workpiece W is conveyed from the carrying inlets 11 on both sides in the longitudinal direction of the heat treatment furnace 10 toward the carrying outlet 12, the roller carrying device 20 uses a plurality of carrying rollers. The cylinders 21 are arranged at a desired interval along the conveyance direction of the workpiece W. Although the workpiece W is described here in the form of a belt-shaped steel belt (metal belt), any material can be used as long as it can be conveyed by a roller.

In addition, as shown in FIG. 2 and FIG. 3, in the aforementioned roller-type conveying device 20, the ends on both sides of the roller shaft 21 a of each of the conveying rollers 21 are passed through the heat transfer furnace 10 along the conveyance of the workpiece W. The side walls 13 on both sides of the direction are rotatably held by the bearing members 22, 23 provided on the outer side of the side wall 13, respectively.

Here, one end side of the roller shaft 21a of each of the transfer rollers 21 is held so that the end portion of the roller shaft 21a is rotatable so as not to deflect in the vertical direction and / or the axial direction. The commercially available bearing member 22. On the other hand, the other end side of the roller shaft 21a of each of the conveying rollers 21 is held so that the end of the roller shaft 21a is rotatable so as to extend in the axial direction or bend in the vertical direction. Commercially available bearing member 23.

Furthermore, in the present embodiment, each of the transfer rollers 21 that are rotatably held by the bearing member 23 is rotatable in the end portion of the roller shaft 21a such that it can extend in the axial direction or can be bent in the vertical direction. The other end side of the roller shaft 21a is connected to the end portion of the roller shaft 21a that is rotatably held in the bearing member 23 as described above, and is provided with a measuring device. The bending amount measurement sensor 31 that measures the amount of bending of the roller shaft 21a in the up-down direction, and the expansion amount measurement sensor 32 that measures the expansion and contraction amount of the roller shaft 21a are used to detect the deformation amount of each of the rollers 21 The amount of deformation detection sensor 30.

Further, in this embodiment, the amount of bending in the vertical direction of the roller shaft 21a of each of the conveyance rollers 21 measured by the respective bending amount measurement sensors 31 and the positions of the respective telescopic amount measurement sensors 32 are determined. The measured expansion and contraction amounts in the axial direction of the roller shaft 21a of each of the transfer rollers 21 are output to the determination device 40, and based on the amount of bending in the vertical direction of the roller shaft 21a of the transfer roller 21 and the transfer roller 21 The amount of expansion and contraction of the roller shaft 21 a in the axial direction is determined by the determination device 40 with respect to the deformed state of each of the conveyance rollers 21.

Next, the bending amount in the up-down direction of the roller shaft 21 a of each conveying roller 21 measured by each bending amount measurement sensor 31 according to the above-mentioned method, and each measured by each expansion amount measuring sensor 32 The deformation state of each of the conveyance rollers 21 determined by the determination device 40 in the axial direction of the roller shaft 21a of the conveyance roller 21 is output to the management device 50 by a communication means 60 such as the Internet, and Based on the result output from the determination device 40, the management device 50 manages the results of the deformed state of each conveyance roller 21, and further manages the exchange time of each conveyance roller 21.

In this way, each of the conveyance rollers 21 is judged by the aforementioned determination device 40 based on the deformation amount of each of the conveyance rollers 21 measured by the deformation amount sensor 30 using each of the bending measurement sensor 31 and each of the expansion amount measurement sensors 32. The deformed state of the roller 21 and according to the determination result of the determination device 40, As a result of the management of the deformed state of each of the conveyance rollers 21 by the aforementioned management device 50, it is possible to simply confirm the exchange period or the replacement time of each of the conveyance rollers 21 in a stage before the conveyance rollers 21 are deformed and become unusable. The number and position of the transport rollers 21.

Here, when the determination result of the determination device 40 is communicated to the management device 50 by the communication means 60 as described above, the manufacturer or the like who sets the management device 50 on the maintenance of the transport roller 21 can be used at In the stage before the transfer rollers 21 were deformed and became unusable, the deformation state of each transfer roller 20 and its number, position, etc. were simply confirmed, and the number of transfer rollers 21 and the like to be exchanged were prepared in advance. The deteriorated conveyance rollers 21 are appropriately detected in the roll-type conveyance device 20, and an appropriate number of conveyance rollers 21 are immediately exchanged at an appropriate time.

In addition, the "appropriate period" here means the maintenance day and the like of the operation stoppage of the operation of the equipment using the roller conveyance device 20, which have been previously determined. Because the user of the equipment plans to include the inspection day to plan the production volume, as long as the invention can be used to exchange on the inspection day, the production volume will not decrease.

In addition, as for the communication means 60 that communicates the determination results, any of wired communication, wireless communication, and the Internet may be used, and the determination device 40 and the management device 50 may be located at remote locations. Similarly, the deformation amount detection sensor 30 and the determination device 40 may be connected by a communication means and disposed at a remote place.

In addition, the management device 50 may be installed in a part manufacturer or the like that manufactures the conveyance roller 21, and a required number of parts to be exchanged are manufactured in advance. The roller 21 is transported and delivered to the user of the equipment before the inspection date. In this way, the user of the device can be prevented from forgetting to place an order and failing to perform an exchange, which may cause a problem with the device.

In addition, in this embodiment, although a description is given of a form in which the workpiece W is carried on the conveying roller 21, the "conveying" may be a belt-shaped as shown in Fig. 4 in addition to the above-mentioned form. Various forms such as a form in which the work W 'is conveyed while being wound around the conveying roller 21'.

As a result, in the present embodiment, it is possible to simply exchange only the deteriorated transfer rollers 21 in the roller transfer device 20 provided in the heat treatment furnace 10 at an appropriate time, and to prevent the productivity of the heat treatment furnace 10 from decreasing. .

In addition, although the heat treatment furnace 10 is taken as an example here, the present invention can of course be applied to the conveyance rollers of equipment other than the heat treatment furnace 10.

Claims (3)

A status management system of a conveying roller is a status management system of a conveying roller in a roller-type conveying device provided with a plurality of conveying rollers for conveying a workpiece. The status management system of the conveying roller is provided with a detection system. The deformation amount detection sensor for the deformation amount of the conveyance roller, and further includes: a determination device for determining the conveyance roller based on the deformation amount of the roller shaft of the conveyance roller detected by the deformation amount detection sensor. The deformed state of the drum; and the management device, which manages the states of the transport rollers based on the judgment result of the aforementioned discrimination device; and manages the exchange period of each transport roller by the aforementioned management device based on the judgment result of the aforementioned discrimination device, and is based on As a result of the management of the management device, the transfer rollers are exchanged. According to the state management system of the conveying roller according to item 1 of the scope of the patent application, wherein at least one of a bending amount measurement sensor and an expansion amount measurement sensor is provided as the aforementioned deformation amount detection sensor, the The bending amount measurement sensor measures the bending amount of the roller shaft of the conveying roller, and the expansion amount measuring sensor measures the expansion amount of the roller shaft of the conveying roller. For example, the state management system of the conveying roller described in item 1 or 2 of the scope of the patent application is provided with a communication means, and the communication means communicates the determination result of the aforementioned determination device to the aforementioned management device.