JPH09280468A - Electric welding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate reading work by read means and the connecting work of a connector, by reading in a reader, welding condition data displayed on the surface of a synthetic resin-made member, and drivingly controlling an electric welding device by a welding condition just as the welding condition data through a radio communication line. SOLUTION: In the case that a coupling 5 and a synthetic resin pipe are welded to each other by the use of an electric welding device 1, firstly, a power supply cord 29 is connected to power supply. Next, after a bar code 51 on the surface of the coupling 5 is read by a bar code reader 3 and welding condition data read are memorized in a memory, the data are transmitted to the radio communicating apparatus of a device main body 2 through a radio communicating apparatus by operating an operating part 33, and memorized in the memory of the device main body 2. Then, after a connector 28a is connected to the terminal 52 of the coupling 5, and also a pipe is fitted to the coupling 5, electricity is supplied from welding power supply to a heater wire embedded in the coupling 5 through a cable 28 while being controlled by the operating part 25 of the device main body 2, so that the heater wire is heated, and the coupling 5 and the pipe are welded to each other.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electric welding device.

[0002]

2. Description of the Related Art For gas piping, water supply and sewerage piping, it is important in the laying work that the sealing property of the connecting portion between the pipes, that is, the pipes are connected so that there is no gas leakage or water leakage. Is. However, when connecting a synthetic resin pipe by welding through a joint, the synthetic resin joint and the synthetic resin pipe have different wall thicknesses depending on the diameter and size, and the resin of each manufacturer is different. Since the characteristics are different or the characteristics of the resin are slightly different from lot to lot, the optimum conditions for welding are different depending on the size, lot or manufacturer.

Therefore, the welding conditions most suitable for the joint are always displayed on the surface of the joint by a bar code so that anyone can easily weld under the optimum conditions. Also, Japanese Patent Laid-Open No. 63-160822. It has been proposed to weld using an electric welding device such as that disclosed in US Pat.
This electric welding device includes an apparatus main body, a connector, and a bar code reader as a reader.

The bar code reader reads data such as the type of the joint, the diameter of the joint, the thickness of the joint, the type of the resin, and the resistance value of the heater wire displayed on the surface of the joint made of synthetic resin by the bar code, This data is sent to the main body of the device via a cable. The device body analyzes the data sent from the bar code reader and supplies a predetermined amount of electricity to the connector via a cable in a pattern according to the welding conditions.

The connector supplies electricity supplied from the main body of the apparatus to the heater wire embedded in the joint through the terminal provided in the joint to heat the heater wire, so that the connector and the pipe connected to the joint are connected. The interface is melted to weld the joint and the pipe. That is, according to this electric welding device, anyone can easily ensure the joint and the synthetic resin pipe connected to this joint under the optimum conditions by simply reading the bar code provided on the joint surface by the bar code reader. Can be welded.

However, in the case of the above-mentioned conventional electric welding device,
Multiple cables extend from the device body, such as the device body and the bar code reader, and the device body and the connector are connected by cables.When these cables are used to read data with the bar code reader, There is a problem that workability is poor due to entanglement and entanglement when connecting to terminals.

[0007] Usually, the work site where the electric welding device is used is often soil or mud ground, but if the bar code reader is placed on such soil or mud ground after reading the data, the reading unit The bar code reader cannot be placed directly on the ground because it is easy to get dirty or damage the reading part by hitting feet or stones. Therefore, I would like to avoid placing the barcode reader directly on the ground by putting it in the operator's pocket or the like.However, since the barcode reader is connected to the device body with a cable, If the reader is put in a pocket, the work range of the worker is restricted. Therefore, the bar code reader must be placed on the receiver of the bar code reader provided in the main body of the apparatus, which is very troublesome.

[0008]

SUMMARY OF THE INVENTION In view of such circumstances, an object of the present invention is to provide an electric welding device which facilitates the reading work by the reading means and the connecting work of the connector.

[0009]

In order to achieve such an object, an electric welding apparatus according to the present invention has a reader for reading the welding condition data displayed on the surface of a synthetic resin member, and a reader for reading the welding condition data. In an electric welding device provided with welding energy to the synthetic resin member under welding conditions according to the welding condition data, and an apparatus main body adapted to weld a synthetic resin member and another synthetic resin member. Therefore, the reader and the apparatus main body are connected to each other via a wireless communication line capable of transmitting the welding condition data.

Further, in the above construction, the synthetic resin member usually means a pipe material or a joint used for connecting the pipe materials, but a rod-shaped or plate-shaped material may be used. The synthetic resin is not particularly limited, and examples thereof include polyethylene, polypropylene, polyvinyl chloride and the like.

As a welding method, welding power is supplied from a power supply terminal provided on the surface of a synthetic resin member to a heater wire wired inside the synthetic resin member through a connector to generate heat by the heater wire. A method in which a synthetic resin member is heated and melted and a synthetic resin member and another synthetic resin member are welded is preferably used. In addition to such a method, microwaves, high frequencies, far infrared rays, etc. A method of heating a synthetic resin member can also be used.

The means for displaying the welding conditions is not particularly limited, and a bar code is preferably used, but symbols such as Braille or direct numbers may be displayed. In addition, such a display unit may be directly printed on a synthetic resin member, or may be a member to which a printed sticker is attached.

In addition to the above-mentioned structure, as in claim 2 or claim 3, the reader is provided with a storage means capable of accumulating construction data including welding conditions, or the reader or the apparatus main body is provided with another place. It is preferable to provide a wireless communication means capable of transmitting construction data including welding conditions to the host computer installed in. The storage means may be provided in either the reader or the apparatus main body. The storage means is not particularly limited, and examples thereof include a memory and a memory card.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
This will be described in detail with reference to the drawings. FIG. 1 shows an example of an electric welding device according to the present invention.

As shown in FIG. 1, the electric welding device (electrofusion joint controller) 1 includes a device body (controller body) 2 and a bar code reader (handy terminal) 3 as a reading means. As shown in FIG. 2, the barcode reader 3 includes a wireless communication device 31, a storage unit 32, an operation unit 33, and a display unit 34.
A bar code 5 displayed on the surface of a joint (electrofusion joint) 5 which is a synthetic resin member by the reader body 36.
1 is read, and the welding condition data described in the bar code is temporarily stored in the storage unit 32.

In addition to the welding condition data, the storage unit 32 can also store other construction data such as welding date and time and welding location.

The wireless communication device 31 is adapted to transmit the welding condition data stored in the storage section 32 to the wireless communication device 26 of the apparatus main body 3 via the antenna 35, and to perform welding condition data and construction. Other construction data such as time and construction location is also transmitted in real time to the host computer 7 to which the wireless communication device 71 is connected via the serial interface (RS-232C) installed in another location. Data management can be done smoothly.

The display unit 34 can display the read data, the data already stored in the storage unit 32, the operation procedure, and the like. The operation unit 33 can input a code by key input when the code is not properly read by the reader body 36.

As shown in FIG. 2, the apparatus main body 2 includes a control unit 21, a storage unit 22, a welding power source 23, and a display unit 24.
, Operation unit 25, wireless communication device 26, antenna 27
And the power supply cord 29, and the welding condition data transmitted from the barcode reader 3 is received by the wireless communication device 26 via the antenna 27.
It is adapted to be temporarily stored in the storage unit 22.

That is, the bar code reader 3 and the apparatus main body 2 are not connected by a cable or the like, but only by a wireless communication line.

Further, in the apparatus body 2, the control unit 21 controls the welding power source 2 according to the welding condition data stored in the storage unit 22.
3 through the cables 28, 28, the connectors 28a, 2 provided at the tips of the cables (energizing cords) 28, 28
Power is supplied to 8a. Connector 2
As shown in FIG. 1, 8a and 28a are connected to terminals 52 and 52 protruding on the surface of the joint 5.

The display section 24 is adapted to display welding conditions, operating procedures and the like. The operation unit 25 is the welding power source 2
3 can be turned on and off, and data can be transmitted and received between the barcode reader 3 and the host computer 7.

In order to weld the joint 5 and the synthetic resin pipes 6 and 6 which are different synthetic resin members using the electric welding device 1, first, the power cord 29 is turned on (not shown).
In addition to being connected to, the apparatus main body 2 is carried to the vicinity of the work place where the joint 5 and the synthetic resin pipe 6 are connected. Next, the bar code 51 on the surface of the joint 5 is read by the bar code reader 3, the read welding condition data is once stored in the storage unit 32, and then the operation unit 33 is operated to perform the welding stored in the storage unit 32. The condition data is transmitted to the wireless communication device 26 of the device body 2 via the wireless communication device 31, and the storage unit 2 of the device body 2 is transmitted.
Store it in 2.

The connectors 28a and 28a are connected to the terminals 52 and 52 of the joint 5, and the synthetic resin pipes 6 and 6 are fitted into the joint 5 from both ends of the joint 5, respectively, and then the operation of the apparatus main body 2 is performed. By operating the section 25, the control section 21 controls the welding power source 23 to the cables 28, 28 and the connector 2 according to the welding condition data stored in the storage section 22.
Electricity is supplied in a predetermined pattern to a heater wire (not shown) embedded in the joint 5 through 8a, 28a and terminals 52, 52 to heat the heater wire, and the joint 5 and the synthetic resin pipe 6,
It is designed to be welded with 6.

As described above, in the electric welding device 1, the bar code reader 3 is connected to the device body 2 by the wireless communication line, and the cable is connected to the device body 2 and the connector 28a.
Since there are only cables 28, 28 for connecting to 28a,
The cables 28, 28 do not get entangled with other cables, and the data reading work and the connectors 28a, 28
Connection work between a and the terminals 52, 52 can be easily performed.
Moreover, an operator can carry it in his / her pocket and prevent an accident that the reading surface becomes dirty or damaged when it is directly placed on the ground.

Further, since the bar code reader 3 is provided with the storage unit 32 capable of storing the welding condition data and other construction data, the reading work can be performed even when the power source of the apparatus main body 2 side is not turned on, and the work can be performed. Waste can be saved.

Further, the bar code reader 3 has a storage unit 31.
In addition to the welding condition data, the storage unit 31 also stores other construction data such as construction time and construction location, and stores the stored data in real time via the wireless communication device 31 and the wireless communication device 71. Since it can be sent to the host computer 7, data management can be performed very easily.

The electric welding apparatus according to the present invention is not limited to the above embodiment. For example, in the above-described electric welding apparatus 1, the barcode reader 3 is provided with the storage unit 32 and the data read once is stored in the storage unit 32. However, the data read by the barcode reader 3 is immediately wirelessly transmitted. You may make it send to the apparatus main body 2 side with a communication device.

[0029]

Since the electric welding device according to the present invention is constructed as described above, the reading work of the welding condition data and the connecting work of the connector can be smoothly carried out, and the working time can be shortened. become able to.

If the storage means is provided in the reader as in claim 2, the reading work can be performed even when the power source of the apparatus main body side is not turned on, and the work is not wasted. Further, if data such as welding condition data and construction data can be transmitted and stored via a wireless communication means to a host computer placed in another place as in claim 3, the data can be stored. Management becomes easier.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an electric welding device according to the present invention.

FIG. 2 is a block diagram of the electric welding device of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electro-welding device 2 Device main body 21 Control part 22 Recording part (data storage means) 23 Welding power source 24 Display part 25 Operation part 26 Wireless communication device 3 Bar code scanner (reader) 31 Wireless communication device 32 Storage part 5 Joint (composite) Resin member) 51 Bar code (welding condition data) 52 Terminal 6 Synthetic resin tube (another synthetic resin member) 7 Host computer

Claims (3)

[Claims] 1. A reader for reading welding condition data displayed on the surface of a synthetic resin member, and a welding energy is supplied to the synthetic resin member under the welding conditions according to the read welding condition data. And a device body adapted to weld another synthetic resin member, wherein the reader and the device body are wireless communication lines capable of transmitting the welding condition data. An electric welding device characterized by being connected via. 2. The electric welding device according to claim 1, wherein the reader includes a storage unit capable of accumulating construction data including welding conditions. 3. The electric welding device according to claim 1, further comprising a wireless communication unit capable of transmitting construction data including welding conditions to a host computer installed in another place.