JP4999019B2 - Caulking forgetting prevention system and method for piping joints - Google Patents

Description

  The present invention relates to an anti-caulking system for pipe joints and a method thereof for preventing forgetting caulking of the joint when the joint is caulked and joined to the pipe using a dedicated caulking tool.

  Conventionally, there is a type of joint for piping which is inserted into the pipe and then caulked to the pipe using a special caulking tool. As this type of commercially available joint, for example, Sekisui Chemical Metacut manufactured by Kogyo Co., Ltd. (for example, see Non-Patent Document 1), Morco Joint, Double Press, CU Press (for example, refer to Non-Patent Document 2) manufactured by Bencan Japan Co., Ltd., Propress S manufactured by Toyo Fitting Co., Ltd. (For example, refer nonpatent literature 3), SUS press (for example, refer nonpatent literature 4) by KK Metal Co., Ltd., etc. are known.

  Conventionally, when this type of joint is joined to a pipe, in order to increase work efficiency, a construction method in which the caulking work is collectively performed after the work of inserting the joint into the pipe is collectively performed. However, in this construction method, forgetting caulking may occur due to inadequate confirmation of caulking work, and if heat insulation work in the subsequent process is performed as it is, it is impossible to find forgetting caulking from the appearance, When water is passed through the pipe, a water leakage accident may occur from the place where the caulking is forgotten.

  Therefore, in order to solve such problems, a method for preventing caulking is used at the actual construction site, in which another worker visually confirms and attaches a confirmed seal to the joint after completion of the joint caulking work. It has been.

Sekisui Chemical Co., Ltd. website URL: http://www.eslontimes.com/system/items-view/20/ Benkan Japan Co., Ltd. website URL: http://www.benkan-japan.com/consumer/mj/product/01.html Toyo Fitting Co., Ltd. website URL: http://www.toyo-fit.co.jp/tsugite15f.html KK Metal Co., Ltd. website URL: http://www.ckmetals.co.jp/products/sus.html

  However, in the conventional caulking-forgetting prevention method described above, if the joint is in a place where it is difficult to see, the worker may overlook it, and it is difficult to say that it is a perfect countermeasure.

  In addition, since the check data is summed manually, there is a problem that the summation work becomes complicated if the number of caulking portions of the joint is large.

  The present invention has been made to solve the above-described problems, and provides a caulking forgetting prevention system and method for a pipe joint that can easily prevent forgetting caulking of a joint, and that can easily prevent the caulking of the joint. It is intended to do.

  In order to achieve the above object, the present invention is a pipe joint forgetting prevention system for a pipe joint for preventing the joint from being forgotten when the joint is caulked and joined to the pipe using a dedicated caulking tool. An IC tag attached to the joint in a state where unique identification information corresponding to the joint is written, and attached to the caulking tool main body, and after the caulking work of the joint to the pipe by the caulking tool main body is completed And an attachment provided with a control device that automatically writes caulking history information to the IC tag.

  In the system for preventing caulking forgetting for pipe joints according to the present invention, the control device includes means for reading the identification information of the IC tag, and identification information in which the identification information of the read IC tag is stored in advance. And a means for permitting the power supply from the driving power source to the caulking tool main body when the two match.

  In the piping joint forgetting prevention system according to the present invention, the control device detects a current value of a power source for driving the caulking tool, and caulking by the caulking tool when a characteristic change of the current value is detected. It is preferable to determine that the work has been completed.

  Further, the pipe joint forgetting to caulking prevention system according to the present invention stores the history information written in the IC tag in association with the identification information written in the IC tag, and associates the history information with the written identification information. It is preferable to provide a terminal device that outputs the history information stored in association with the identification information of the joint to be caulked and stored in advance.

  Furthermore, it is preferable that the caulking forgetting prevention system for a pipe joint according to the present invention includes a reading device that directly reads history information written in the IC tag from the IC tag.

  Further, the present invention is a pipe joint forgetting prevention method for a pipe joint for preventing the joint from being forgotten when the joint is caulked and joined to the pipe using a dedicated caulking tool, and corresponds to the joint. A step in which the control device reads the identification information of the IC tag attached to the joint in a state where the unique identification information is written, and compares the read identification information of the IC tag with previously stored identification information; A step of permitting the power supply from the driving power source to the caulking tool body when the two match, and the control device detects a current value of the driving power source of the caulking tool, and a characteristic change of the current value is detected. A step of determining that the caulking operation of the joint to the pipe by the caulking tool is completed when detected, and the control after determining that the caulking operation by the caulking tool body is completed. Automatically writing the history information of the caulking work on the IC tag, and storing the terminal information in association with the identification information written on the IC tag, the history information written on the IC tag; The terminal device outputs the history information stored in association with the written identification information and the identification information of the joint to be caulked and stored in advance in association with each other. Features.

  According to the present invention, since the history information of the caulking work is automatically written to the IC tag during a series of caulking work, the caulking work and its confirmation work are simplified and the history information is also recorded. There is no risk of forgetting to write.

  Moreover, even if there is a joint that has not been caulked, for example, the joint can be easily found, so that forgetting caulking of the joint can be reliably prevented, and the reliability of construction can be improved.

  Further, since the modification of the caulking tool can be reduced and suppressed, the manufacturing cost and the development cost can be suppressed.

  Furthermore, even if the characteristic changes in the current value of the drive power supply during caulking work differ depending on the type and size of the joint, it can be handled by changing the software. Various excellent effects can be obtained, such as being able to easily cope with joints.

(A)-(e) is explanatory drawing which shows the structure of the caulking forgetting prevention system for pipe joints concerning embodiment of this invention. It is a block diagram which shows the control apparatus of the caulking tool of the caulking forgetting prevention system for pipe joints concerning embodiment of this invention. It is a flowchart which shows the caulking forgetting prevention method for piping joints concerning embodiment of this invention. It is a conceptual diagram which shows the state before caulking a joint with a caulking tool in the caulking forgetting prevention method for piping joints concerning embodiment of this invention. It is a conceptual diagram which shows the state which crimps the joint with the caulking tool in the caulking forgetting prevention method for piping joints concerning embodiment of this invention. It is a figure which shows the electric current detection result while caulking a coupling with the caulking tool in the caulking forgetting prevention method for piping couplings concerning embodiment of this invention. It is a conceptual diagram which shows the state which is performing the confirmation operation | work of the crimping operation | work in the caulking forgetting prevention method for piping joints concerning embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, (a) to (e) in FIG. 1 are explanatory diagrams showing the configuration of the caulking forgetting prevention system for pipe joints according to the embodiment of the present invention, and FIG. 2 is for the pipe joint according to the embodiment of the present invention. It is a block diagram which shows the control apparatus of the caulking tool of the caulking forgetting prevention system.

  The pipe joint forgetting prevention system 10 according to the present embodiment includes a joint 12 to which an IC tag 11 is attached (FIG. 1A), a caulking tool 13 dedicated to the joint 12 (FIG. 1B), PDA (Personal Data Assistant) 14 (FIG. 1 (c)) as a terminal device portable at the construction site, host personal computer 15 (FIG. 1 (d)) as a terminal device installed at the site office, construction It comprises a scanning device 16 (FIG. 1 (e)) as a reading device portable at the site.

  The IC tag 11 is of a type used in, for example, a UHF (Ultra High Frequency) band, and an identification number or the like is written in advance as unique identification information. Further, as the joint 12, for example, Metacut manufactured by Sekisui Chemical Co., Ltd., Morco joint manufactured by Bencan Japan Co., Ltd., double press, CU press, Propress S manufactured by Toyo Fitting Co., Ltd., manufactured by KK Metal Co., Ltd. A SUS press or the like is used.

  The caulking tool 13 includes a caulking tool main body 17, a caulking mechanism 18 provided at the tip of the caulking tool main body 17, a battery (DC12V) 19 as a driving power source provided on the proximal end side of the caulking tool main body 17, and a battery. 19 and an attachment 20 that is mounted by being interrupted by a power supply circuit between the caulking tool main body 17.

The attachment 20 includes a control device 22 whose main functions are reading / writing data to / from the IC tag 11, wireless communication with the PDA 14, and power supply control to the caulking tool body 17, and a tag holder to which the IC tag 11 can be inserted and removed. 21. As shown in FIG. 2, the control device 22 includes a relay 23, a current sensor 24, a microcomputer 25, a DC / DC converter 26, a Bluetooth (registered trademark) module 27, an RFID module 28, and an antenna 29. Has been. Further, the tag holder 21 preferably includes an antenna (not shown) and is provided at a position close to the antenna 29 in order to prevent an error in writing to the IC tag 11.

The PDA 14 includes a liquid crystal display screen 30 that also serves as a touch panel input device, and has a data link function with the control device 22 of the attachment 20 and the host personal computer 15 via Bluetooth (registered trademark) communication. The user is logged on by inputting the operator's name and password registered in advance, and the state of the system and the communication history with the attachment 20 are displayed. Further, by selecting a specific floor number and room name from a list of floor numbers and room names stored in advance, the construction location of the joint 12 is input, and work history such as work date and time is displayed. It is like that.

  The host personal computer 15 includes a main body 31 having a CPU (Central Processing Unit) and a hard disk, a liquid crystal display 32, and a keyboard 33, and aggregation software is installed on the hard disk of the main body 31.

  The scanning device 16 includes a high-power RFID (Radio Frequency IDentification) reader 34 and an antenna 35.

  Next, a method for preventing caulking forgetting for a pipe joint according to an embodiment of the present invention will be described mainly with reference to FIGS. Here, FIG. 3 is a flow chart showing the method for preventing caulking forgetting a pipe joint according to the embodiment of the present invention, and FIG. 4 shows the method for caulking forgetting caulking for the pipe joint according to the embodiment of the present invention. FIG. 5 is a conceptual diagram showing a state before crimping, FIG. 5 is a conceptual diagram showing a state in which a joint is caulked with a caulking tool in the method for preventing caulking for piping joints according to the embodiment of the present invention, and FIG. 6 is an embodiment of the present invention. FIG. 7 is a diagram showing a current detection result while caulking the joint with a caulking tool in the pipe joint forgetting caulking prevention method according to the embodiment, and FIG. It is a conceptual diagram which shows the state which is performing confirmation work.

  First, as shown in FIG. 4, when the joint 12 delivered to the construction site is inserted into the pipe 36 and the IC tag 11 of the joint 12 is inserted into the tag holder 21 of the attachment 20 of the caulking tool 13, the joint 12 is installed in the tag holder 21. An insertion operation of the IC tag 11 is detected by the limit switch (not shown), and this serves as a trigger for starting the following series of operations.

In the attachment 20, as shown in step 1 (S1) of FIG. 3, the identification number of the IC tag 11 is read by the microcomputer 25 via the RFID module 28 and the antenna 29, and the information is Bluetooth (registered trademark). It is transmitted to the PDA 14 by communication.

  In the PDA 14, as shown in step 2 (S 2), the identification information of the IC tag read by the attachment 20 is collated with the identification number of the IC tag 11 stored in the database in the PDA in advance. As shown in step 3 (S3), it is determined whether both identification numbers match.

As a result, if it is determined that both identification numbers match, a construction start command is transmitted to the control device 22 of the attachment 20 by Bluetooth (registered trademark) communication as shown in step 4 (S3). Is done. On the other hand, if it is determined in step 3 (S3) that the two identification numbers do not match, this is displayed on the liquid crystal display screen 30 of the PDA 14 as shown in step 5 (S5). Is done.

  Next, as shown in Step 6 (S6) of FIG. 2 and FIG. 3, the attachment 20 receives a construction start command transmitted from the PDA 14, and the power supply to the caulking tool body 17 is permitted by the microcomputer 25. Electric power is supplied from the battery 19 to the tool body 17 via the relay 23 and the current sensor 24.

  As a result, as shown in FIG. 5, the caulking operation of the joint 12 by the caulking tool 13 is started, and during this caulking operation, the electric power supplied from the battery 19 is supplied as shown in step 7 (S7). The current value detected by the current sensor 24 is detected. As shown in FIG. 6, the current value of the battery 19 during the caulking operation gradually increases as time passes, and once the caulking operation is completed, the current value suddenly decreases. A change occurs (see the broken line in FIG. 6), and thereafter, there is a tendency to show a constant output. Therefore, as shown in Step 8 (S8) in FIG. This is determined by the microcomputer 25. Note that the characteristic change of the current value detected at the time of the determination in step 8 (S8) may vary depending on the type and size of the joint 12. Therefore, the experimental value of the current value when the joint 12 is caulked in advance is used. To be determined.

  As a result of the determination in step 8, when it is determined that the current value has sharply decreased, it is determined that the caulking work of the joint 12 to the pipe 36 by the caulking tool 13 is completed, and the next step 9 (S9). As shown in FIG. 5, the microcomputer 25 stops the power supply from the battery 19 to the caulking tool body 17, and transmits a construction completion signal to the PDA 14. On the other hand, if it is not determined in step 8 (S8) that the current value has suddenly decreased, the process returns to step 7 (S7), and the current value is subsequently detected.

Next, as shown in step 10 (S10), the PDA 14 receives the construction completion signal transmitted from the attachment 20 and inputs the caulking work history information such as the installer and the construction date and time. Is stored in the PDA 14 and transmitted to the control device 22 of the attachment 20 by Bluetooth (registered trademark) communication.

  Thereafter, in the attachment 20, the history information is automatically written into the IC tag 11 by the microcomputer 25 as shown in step 11 (S11).

  In the host personal computer 15, as shown in step 12 (S 12), the history information stored in the PDA 14 is associated with identification information unique to the IC tag 11 in which the history information is written, and the main body 31. The history information stored in association with the identification information is associated with the identification information of the joint to be caulked and jointed in advance by being uploaded to the hard disk and stored, and the counting software being activated. Is output.

  Thereafter, the caulking work is performed on all the joints 12 by the same method as described above. Then, after the caulking work is completed, the scanning device 16 is carried to the construction site, and the history information written in the IC tag 11 is read by the RFID reader 34 via the antenna 35, thereby finding the joint 12 that has been forgotten to be caulked. be able to.

Thus, according to the above-described caulking forgetting prevention system and method for a pipe joint according to the embodiment of the present invention, the history information is automatically written to the IC tag 11 during a series of caulking operations. Therefore, the caulking work and its confirmation work are simplified, and there is no possibility of forgetting to write the history information. Further, in the host personal computer 15 of the field office, for example, when the identification numbers of the joints 12 to be caulked and stored in advance are 001 to 100, only the caulking work completion data of the joints 12 having the identification numbers 001 to 095 is stored. If it is not output, the history information stored in association with the identification information unique to the IC tag 11 is stored in advance so that the joints with the identification numbers 096 to 100 may be forgotten to be caulked. The identification information of the joint to be caulked and joined can be output in correspondence.
Further, after the caulking work is completed, the history information written in the IC tag 11 can be read by the scanning device 16 at the construction site. Therefore, even if there is a joint 12 that has not been caulked, the joint 12 can be easily found both at the site office and at the site. Can improve the reliability.

  Furthermore, according to the above-described caulking forgetting prevention system and method for a pipe joint according to the above-described embodiment of the present invention, the completion of caulking work is determined by detecting a characteristic change in the current value of the battery 19 during caulking work. Therefore, it is not necessary to attach a switch, a sensor, or the like for detecting the completion of the caulking work to the caulking tool 13, so that manufacturing costs and development costs can be suppressed. Furthermore, even if the characteristic change in the current value of the battery 19 during the caulking operation differs depending on the type and size of the joint 12, it can be easily handled by changing the software. The size of the joint 12 can also be accommodated.

10 Piping joint forgetting caulking prevention system 11 IC tag 12 Joint 13 Caulking tool 14 PDA (terminal equipment)
15 Host PC (terminal equipment)
16 Scanning device (reading device)
17 Caulking tool body 19 Battery (power supply for driving)
22 Control device 25 Microcomputer 36 Piping

Claims (6)

A caulking forgetting prevention system for a pipe joint for preventing forgetting caulking of the joint when the caulking joint is joined to the pipe using a dedicated caulking tool,
An IC tag attached to the joint in a state where unique identification information corresponding to the joint is written;
An attachment provided to the caulking tool main body, and provided with a control device that automatically writes caulking work history information to the IC tag after the caulking work of the joint to the pipe by the caulking tool main body is completed;
An anti-caulking system for pipe joints, characterized by comprising: The controller is
Means for reading the identification information of the IC tag;
Means for collating the read identification information of the IC tag with previously stored identification information, and permitting power supply from the driving power source to the caulking tool body when both match,
The caulking-forgetting prevention system for pipe joints according to claim 1, comprising:   3. The control device according to claim 1, wherein the control device detects a current value of a driving power source of the caulking tool, and determines that the caulking work by the caulking tool is completed when a characteristic change of the current value is detected. Caulking forgetting prevention system for pipe joints.   The history information written in the IC tag is stored in association with the identification information written in the IC tag, and the history information stored in association with the written identification information is combined with the caulking joint stored in advance. The piping joint forgetting prevention system for pipe joints according to any one of claims 1 to 3, further comprising a terminal device that outputs the corresponding joint identification information.   The pipe joint forgetting caulking forgetting prevention system according to any one of claims 1 to 4, further comprising a reading device that directly reads history information written in the IC tag from the IC tag. A caulking forgetting prevention method for a pipe joint for preventing caulking of the joint when the joint is caulked and joined to the pipe using a dedicated caulking tool,
A step in which the control device reads the identification information of the IC tag attached to the joint in a state where unique identification information corresponding to the joint is written;
Collating the read identification information of the IC tag with previously stored identification information, and permitting power supply from the driving power source to the caulking tool body when both match,
A step of determining that the caulking operation of the joint to the pipe by the caulking tool is completed when the control device detects a current value of the driving power source of the caulking tool and detects a characteristic change of the current value; ,
A step of automatically writing the history information of the caulking operation into the IC tag after the control device determines that the caulking operation by the caulking tool body has been completed;
The terminal device stores the history information written in the IC tag in association with the identification information written in the IC tag;
The terminal device outputs the history information stored in association with the written identification information in association with the identification information of the joint to be caulked and stored in advance, and
An anti-caulking method for piping joints, characterized by comprising:

Images