CN1969101A - Reinforcement binder and wire reel - Google Patents

Abstract

A reinforcement binder, wherein the antenna of an RF tag reader and a photo sensor detecting the rotating position of a wire reel are installed in a wire reel storage part. The photo sensor detects a mark on the wire reel, a control part decelerates or stops the wire reel when an RF tag fitted to the side face of the wire reel is opposed to the antenna of the RF tag reader, and the RF tag reader performs an RF tag recognizing operation to identify the type of a wire. Since the wire reel is decelerated or stopped and transmission/receiving are performed when the RF tag is opposed to the antenna of the RF tag reader, a stable communication canbe performed.

Description

Rebar Binders and Wire Reels

technical field

The invention relates to a steel bar binding machine and a steel wire reel, in particular to a steel bar binding machine and a steel wire reel which use a non-contact sensor to identify the type of steel wire wound on the steel wire reel.

Background technique

JP-08-114034 and JP-08-114035 disclose a motor-driven steel bar binding machine, which includes a binding wire (steel wire) that is sent out while bending the binding wire (steel wire) and is wound around the steel bar. The conveying mechanism and the binding wire twisting mechanism that twists and binds the binding wire wound on the reinforcing bar perform a cyclic binding operation through the binding wire conveying operation and the binding wire twisting operation according to the trigger operation.

Moreover, Japanese Patent No. 3050369 discloses a steel bar binding machine, which is provided with a display device for displaying the type of steel wire on the steel wire reel, and is also provided with a device for detecting the steel wire type display device of the steel wire reel on the above-mentioned steel bar binding machine. And the device for controlling the wire torque according to the type of wire, the detection means detects the type of wire, and the control means automatically sets the wire torque to an appropriate value corresponding to the type of wire.

In Japanese Patent No. 3050369, as a device for reading information such as the type of steel wire, a reflective photoelectric sensor is disclosed to read the reflective seal or barcode seal attached to the steel wire reel. A structure in which a magnetic sensor such as a contact switch reads a magnet embedded in a wire reel also discloses a structure in which a concave portion or a convex portion is formed on the side surface of the wire reel so that the front end of the rod is aligned with the wire reel. The elastic contact on the side is detected by the rod-type switch that opens and closes following the concave or convex part when the wire reel rotates.

Since the steel bar binding machine is mainly used on an outdoor construction site, etc., it is exposed to wind, rain or sand, and dirt or dust adheres to the main body, making it easy to get dirty. Therefore, when optical elements such as photoelectric sensors are used as the wire reel identification device, raindrops or mud adhere to the optical element of the main body or the reflective seal of the wire reel, sometimes failing to work or misoperation.

Contents of the invention

One or more embodiments of the present invention provide a steel bar binding machine and a steel wire reel, which have the identification performance of a non-contact steel wire reel identification device such as a stable RF identification system.

According to one or more embodiments of the present invention, the steel bar binding machine includes a steel wire conveying mechanism, a steel wire twisting mechanism and a steel wire cutting mechanism. The steel wire ring fastens the steel bar, cuts the steel wire ring from the subsequent steel wire, and binds the steel bar, and also includes: a device for reading steel wire identification information arranged on the steel wire reel; corresponding to the read Steel wire identification information, a control device for controlling the amount of steel wire feeding and torque; an RF tag reader installed on the main body side of a steel bar binding machine; an RF tag installed on a steel wire reel; and a response to the transmission of the above RF tag reader It is a control device that identifies the type of steel wire based on the radio wave emitted by the above-mentioned RF tag, and controls the feeding amount and torque of the steel wire.

According to one or more embodiments of the present invention, the above-mentioned RF tag is installed on the side of the above-mentioned steel wire reel, and the antenna of the above-mentioned RF tag reader is arranged on the RF tag adhesive surface of the above-mentioned steel wire reel loaded in the steel bar binding machine. to the position.

Moreover, according to one or more embodiments of the present invention, the steel bar binding machine also includes a signal sending and receiving time control device, an optical, magnetic or mechanical position detection device for detecting the rotational position of the above-mentioned steel wire reel; when the side of the above-mentioned steel wire reel When the RF tag is at a position substantially facing the antenna of the RF tag reader, the RF tag identification operation is performed.

According to one or more embodiments of the present invention, the steel bar binding machine is provided with a steel wire that reduces the rotation speed of the steel wire drum at a position where the RF tag on the side of the steel wire drum is roughly opposite to the antenna of the RF tag reader. Conveyor control or wire drum brake.

According to one or more embodiments of the present invention, the steel bar binding machine further includes a steel wire conveying control device or a steel wire drum braking device that stops the RF tag on the side of the steel wire drum within the range of the RF tag reader for sending and receiving signals.

Moreover, according to one or more embodiments of the present invention, the steel bar binding machine is provided with a steel wire conveying control that stops the steel wire reel at a position where the RF tag on the side of the steel wire reel is roughly opposite to the antenna of the RF tag reader device or wire reel braking device.

Moreover, according to one or more embodiments of the present invention, the braking device of the steel wire reel is composed of a recess provided on the steel wire reel, and a braking member provided on the steel bar binding machine and combined with or disengaged from the recess.

Moreover, according to one or more embodiments of the present invention, as part of initialization operations including steel wire conveyance when the power of the steel bar binding machine is turned on, the steel bar binding machine performs the RF tag identification process performed by the above-mentioned RF tag reader. .

Moreover, according to one or more embodiments of the present invention, the steel wire reel sends out the steel wire wound on the steel wire reel in a ring shape and winds it on the steel bar, twists the steel wire loop to fasten the steel bar, and the The steel wire loop is cut from the subsequent steel wire, and the steel bar is bundled, which includes an RF tag that emits a signal capable of identifying the type of the steel wire in response to a transmission wave from an RF tag reader installed on the above-mentioned steel bar binding machine.

Other features and effects can be more clearly understood from the description of the embodiments and the claims.

Description of drawings

Fig. 1 is the side view of the state after pulling down the reel cover of steel bar binding machine;

Fig. 2 is the circuit block diagram of steel bar binding machine;

Fig. 3 (a) is the longitudinal sectional view of steel wire reel;

Fig. 3 (b) is the front view of steel wire reel;

Fig. 4 is the rear view of steel bar binding machine;

Fig. 5 is the flowchart of the initialization action of steel bar binding machine;

Figure 6 is a front view showing another embodiment of the wire reel;

Fig. 7 is a side view showing the state after the reel cover of the reinforcing bar binding machine is removed according to another embodiment;

Fig. 8 (a) is the longitudinal sectional view of steel wire reel;

Fig. 8 (b) is the front view of steel wire reel;

Fig. 9 is a plane sectional view of a steel bar binding machine;

Fig. 10 is a plane sectional view of a steel bar binding machine;

Fig. 11 is the plane sectional view of steel bar binding machine;

Fig. 12 is a front view showing another embodiment of the wire drum.

Explanation of reference signs

1 steel bar binding machine

3 Steel wire reel housing

6 Reel support bosses

7 loop antenna

8 reflective photoelectric sensor

9 RF tag reader

10 Control Department

21 steel bar binding machine

22 round holes

23 solenoid

24 iron core

25 tablet

26 micro switch

27 spring

31 wire reel

32 Bushing

33, 34 Reel flange

36 RF tags

38 reflective marker

39 reflective marker

41 Steel wire reel

42 Bushing

43, 44 Reel flange

46 round hole

47 RF tags

48 long holes

Detailed ways

One or more embodiments of the invention are described below with reference to the accompanying drawings.

Figure 1 shows the right side of a steel bar binding machine 1 in one or more embodiments of the invention. The steel bar binding machine 1 includes a binding wire conveying mechanism, a binding wire cutting mechanism and a binding wire twisting mechanism, and loads the steel wire reel into the steel wire reel accommodating part 3 formed at the rear right side of the housing 2 . A binding wire conveying mechanism (not shown) consisting of a pair of gear-type pulleys meshing with each other is provided in front of the steel wire reel housing part 3, and the steel wire wound on the steel wire reel is forwarded by the binding wire conveying mechanism. Conveying, sending out in a loop along the curved steel wire guide point 4 at the front, and wrapping it on the steel bar. After the steel wire is sent out to a specified length and wound multiple times on the steel bar, the binding wire conveying mechanism stops, and the hook (not shown) inside the hook cover 5 arranged at the front end of the binding wire twisting mechanism holds the steel wire ring , the rear end of the wire ring is cut off by the binding wire cutting mechanism (not shown) near the base of the steel wire guide tip 4, and the wire ring is cut off from the subsequent steel wire. Then, the hook is driven to rotate, twisting a part of the wire loop, thereby binding the steel bar.

A circular reel support boss 6 is arranged at the center of the steel wire reel housing part 3, and an RF tag reader (radio frequency tag reader) and a flat loop antenna 7 are arranged on the reel support boss 6 top. in. On the surface of the reel support boss 6, a reflective photoelectric sensor 8 integrated with a light-emitting part and a light receiving part is provided. With the reel support boss 6 as the center, the loop antenna 7 and the reflective photoelectric sensor 8 have a shape of approximately 90 degree of positional relationship.

2 is a block diagram showing the circuit configuration of the steel bar binding machine. An RF tag reader (RF transceiver) 9 and a reflective photoelectric sensor 8 are connected to a control unit 10 . When the control unit 10 executes the initialization operation (feeding the steel wire to the steel wire guide tip 4 and cutting off the front end portion by the binding wire cutting mechanism) when the main power is turned on, the reflective photoelectric sensor 8 reads the rotation position of the steel wire reel described later. , the RF tag reader 9 reads the information of the RF tag of the steel wire reel, and automatically sets the delivery amount, torque, etc. corresponding to the type of steel wire. Once a trigger signal is input from the trigger switch 11 to the control unit 10, the steel wire feeding motor drive circuit 12 and the steel wire twisting motor driving circuit 14 are controlled according to the automatically set feeding amount and torque, and the steel wire feeding motor 13 and the wire twisting motor driving circuit 14 are sequentially driven. Steel wire twists motor 15, carries out the steel bar binding action of a cycle.

Fig. 3 (a) and (b) show the steel wire reel 31, is the resin molded product that the reel flange 33,34 is integrally formed on the both sides of the cylindrical bushing 32, on the outer surface of the reel flange 33 A rectangular RF tag mounting seat 35 is formed, and a sheet-shaped RF tag 36 adhered to the RF tag mounting seat 35 is loaded on the reinforcing bar binding machine 1 so as to face the loop antenna 7 of the reinforcing bar binding machine 1 . And, on the pin support column 37 that is formed in the bushing 32, white reflective mark 38 is installed, and the positional relation of RF tag 36 and reflective mark 38 corresponds to the positional relation of loop antenna 7 and reflective photoelectric sensor 8, and the wire coil When the cylinder 31 rotates, when the reflective marker 38 faces the reflective photoelectric sensor 8 , the RF tag 36 faces the loop antenna 7 . In FIG. 4, the state after loading the steel wire reel 31 on the steel bar binding machine 1 is shown. In addition, 9 denotes an RF tag reader 9 .

There is a type of RF tag 36 in which a coil pattern and a capacitor pattern of aluminum foil are formed on both sides of a dielectric film, and the coil pattern and the capacitor pattern are connected to form an RF resonance circuit read-only RF tag (real Kaiping No. 5-75890 communique, etc.); In addition, there are also RF tags that are equipped with IC chips such as EEP-ROM and can read data (Japanese Unexamined No. 2000-148950 communique, etc.), although it can be any form However, if only the type of steel wire is identified, the RF tag 36 not equipped with an IC chip can be used, and the cost can be suppressed. In addition, in the case of an RF tag equipped with an IC chip, in addition to the wire identification data, various data such as manufacturer data and manufacturing lot number can also be written, and the following structure can also be adopted if necessary: it can be bound with steel bars The RF transceiver of the machine reads data such as the balance of the steel wire and the starting date of use.

Next, a system composed of a read-only RF tag and an RF tag reader will be described. The RF tag reader 9 mounted on the steel bar binding machine includes a signal sending unit, a receiving unit and a sending and receiving control unit. The signal transmitting part of the RF tag reader 9 scans by changing the frequency of the transmitting wave step by step in a predetermined frequency band. The wave resonates to generate an induced current, and the radio wave with the same frequency as the transmission wave of the RF tag reader 9 is sent from the RF tag. The receiving part of the RF tag reader 9 receives the radio wave sent from the resonant circuit of the RF tag 36, and the transceiver control part The frequency channel of the RF tag 36 is determined by identifying the natural resonance frequency of the RF tag from the frequency of the received wave.

For example, in the frequency band a from frequency channel a1 to a20, if the RF tags of frequency channels a1, a8, a15 are respectively attached to the three kinds of steel wires and steel wire reels A, B, C, then the RF The type of the steel wire can be identified by any one of the resonance frequencies a1, a8, a15 of the RF tag 36 received by the tag reader 9 . In addition, when there is no response to the signal transmission unit, it can be determined that the steel wire and the steel wire reel are not genuine products.

FIG. 5 shows the flow of the wire reel recognition operation of the steel bar binding machine. First, load the steel wire reel 31 into the steel bar binding machine 1, and turn on the main power switch to make the steel bar binding machine 1 enter the initialization operation, and transport the front end of the steel wire to a specified length until it reaches the steel wire guide tip 4. Now, the steel wire reel 31 rotates, and the reflective mark 38 arrives in front of the reflective photoelectric sensor 8, and when the RF tag 36 is positioned at the front of the loop antenna 7 of the RF tag reader 9, the signal is output from the reflective photoelectric sensor 8, When the control unit 10 provided as a control device receives the ON signal, it drives the RF tag reader 9 and executes an RF tag recognition operation.

At this time, the type of the wire reel (wire type) is identified based on the frequency reflected from the RF tag 36, and the control unit 10 sets an appropriate torque and feeding amount corresponding to the type, stops feeding the wire, and ends the initialization process. Then, each time the trigger switch is operated before the main power switch is turned off, the binding operation is performed with the torque and delivery amount set in the initialization process. Thus, since the RF tag identification operation is performed when the RF tag 36 installed on the wire drum 31 faces the front of the loop antenna 7 of the RF tag reader 9, the wire drum can be reliably identified.

In addition, when the reflective photoelectric sensor 8 detects the reflective mark 38 of the steel wire reel 31, that is, when the RF tag 36 of the steel wire reel 31 faces the front of the loop antenna 7 of the RF tag reader 9, deceleration can also be carried out. The steel wire or the control of stopping the steel wire conveyance reduces the rotation speed of the steel wire reel 31 or stops the rotation, so that the RF tag identification action can be performed reliably. Furthermore, as shown in FIG. 6, the reflective mark 31 of the steel wire 31 may not be a dot shape, but may be a reflective mark 39 whose shape is extended in the rotation direction, and the detection range of the reflective mark may be enlarged. In addition, it is not necessary to interfere with the continuation of the RF tag recognition operation during the binding operation after the initialization process is completed.

Example 2

Although Embodiment 1 describes the structure in which the rotation position of the wire reel is detected by the photoelectric sensor, the method of temporarily stopping the wire reel mechanically to implement the RF tag recognition operation and further reducing the possibility of recognition errors will be described below. Example.

Fig. 7 shows steel bar binding machine 21, although the disposition mode of loop antenna 7 and RF tag reader is identical with the steel bar binding machine among Fig. 1, but in Fig. 7 has the following structure of replacing photoelectric sensor: The wall surface of the rear of the reel support boss 6 of 3 forms circular hole 22, makes the iron core of the solenoid that is arranged on the inside of steel wire reel accommodating portion 3 from circular hole 22 to the surface of steel wire reel accommodating portion 3 (Fig. 6 in front of the paper surface) to protrude, so that the wire reel stops.

Fig. 8 (a) and Fig. 8 (b) represent steel wire reel 41. 42 represents bushing, and 43,44 represent spool flange, and 45 represent RF label mounting seat, on bushing 43, in view from the center of rotation and A circular hole 46 is formed at a position 90 degrees from the RF tag mounting seat 45 . The positional relationship between the RF tag mounting base 45 , the RF tag 47 and the round hole 46 is the same as the positional relationship between the RF tag 36 and the reflective marker 38 in the wire reel 31 in FIG. 3 . Moreover, the position of the circular hole 22 of the steel wire reel accommodating part 3 in the steel bar binding machine 21 of FIG. 7 corresponds to the circular hole 46 of the steel wire reel 41 of FIG. 8( a ) and FIG. 8( b ).

As shown in Figure 9, the iron core 24 of the solenoid 23 that is arranged on the inside of the steel wire reel housing part 3 passes through the circular hole 12 on the wall surface of the above-mentioned steel wire drum housing part 3. When the solenoid 23 is energized, the iron core 24 protrudes into the steel wire reel accommodating portion 3 . A flat plate 25 is attached to the rear end of the core 24 . When the iron core 24 advances and fits into the round hole 46 of the steel wire reel 41 , the plate 25 presses the micro switch 26 arranged near the solenoid 23 to turn on the micro switch 26 . In addition, 27 denotes a spring, and 28 in front of the wire reel 41 (upper in the figure) denotes a wire feeding mechanism.

Fig. 9 shows the initial state of steel bar binding machine 21, after loading steel wire reel 41, in case power is turned on, then enter initialization procedure, begin to convey steel wire, energize to solenoid 23 simultaneously, drive iron core 24 to forward direction. Thus, as shown in Figure 10, the iron core 24 is in the state of being in elastic contact with the reel flange 43 of the steel wire reel 41, and the steel wire reel 41 rotates, and when the circular hole 46 of the steel wire reel 41 reaches the position of the iron core 24, as As shown in FIG. 11 , the iron core 24 fits into the round hole 46 , and at the position where the RF tag 47 faces the loop antenna 7 of the RF tag reader 9 , the wire reel 41 stops rotating.

At this time, the micro switch 26 is turned on by the flat plate 25 of the spiral tube 23, and the control unit starts the RF tag recognition operation according to the on signal. When the resonant frequency of the RF tag 47 is read and the type of the steel wire is identified, the control unit sets an appropriate torque and delivery amount corresponding to the type of steel wire, and at the same time stops energizing the solenoid 23, and the iron core 24 moves to the initial state through the spring 27. The position retreats, breaks away from the round hole 46 of the steel wire reel 41, and ends the initialization process.

In this way, when the RF tag 47 of the steel wire reel 41 is at a position facing the loop antenna 7 of the RF tag reader 9, the rotation is temporarily stopped and the RF tag identification operation is performed, so that the wire type can be reliably determined.

In addition, as shown in FIG. 12, the hole of the wire reel 41 may also be formed with a long hole 48 having a long circumferential direction in the same manner as the reflective mark 39 of the wire reel 31 of FIG. 6. At this time, the iron core 24 can be easily Fitting into the hole of the rotating wire reel 41 can reliably stop the wire reel, reduce the elastic contact force of the iron core 24, and reduce the rotation resistance and power consumption of the reel.

In addition, the present invention is not limited to the above-described embodiments, and various changes can be made within the technical scope of the present invention. For example, instead of the torque of the wire, it is also possible to set the twisting operation time of the wire, or set the overload stop current value of the motor performing the wire twisting operation. Moreover, it is also possible to display characters, marks, colors, etc. that can identify the type of steel wire on the surface of the RF tag, and to identify the steel wire reel in advance visually. The above changes are obviously included in the scope of the present invention.

Although this invention was demonstrated in detail with reference to the specific Example, it is possible for those skilled in the art to make various changes and modifications within the spirit and range of this invention.

This application is based on Japanese Patent Application (Patent Application No. 2004-181732) filed on June 18, 2004, the contents of which are referred to herein.

Industrial Applicability

According to one or more embodiments of the present invention, the structure of the steel bar binding machine is that an RF tag is set on the steel wire reel, and the information of the type of steel wire is read by the RF tag reader equipped on the steel bar binding machine, so as to Wire feeding volume and torque are controlled. Therefore, it is less affected by weather conditions such as rain and dirt such as mud than the conventional technology that uses a photoelectric sensor to read information, and wire information can be reliably acquired. Moreover, when the RF tag is within the range of the RF tag reader for transmitting and receiving signals, by slowing down or stopping the rotation of the wire reel, it is possible to prevent the RF tag from identifying errors.

Claims (35)

1. reinforcing-bar binding machine, it comprises steel wire conveying mechanism, steel wire twist mechanism and wire cutting off machine structure, the steel wire that is wrapped on the wire reel is sent with ring-type, and be wound on the reinforcing bar, reverse this steel wire ring, carry out fastening to reinforcing bar, this steel wire ring is cut off from follow-up steel wire, wiretie is characterized in that, comprising:

Be used to read the device of the steel wire identifying information that is arranged on the wire reel;

Corresponding to the steel wire identifying information that is read, the control device that steel wire conveying capacity and moment of torsion are controlled;

Be arranged on the RF label reader of main body one side of reinforcing-bar binding machine;

Be installed in the RF label on the wire reel; And

Respond the transmission ripple of above-mentioned RF label reader, the electric wave identification steel wire kind of being sent according to above-mentioned RF label, and the control device that the conveying capacity of steel wire and moment of torsion etc. are controlled.

2. reinforcing-bar binding machine according to claim 1 is characterized in that,

Above-mentioned RF label is installed on the side of above-mentioned wire reel;

Above-mentioned RF label reader is arranged on antenna and be loaded on the RF label bonding plane position in opposite directions of the above-mentioned wire reel in the reinforcing-bar binding machine.

3. reinforcing-bar binding machine according to claim 2 is characterized in that, comprising:

Be used to detect the position detecting device of the turned position of above-mentioned wire reel;

When the RF label on the above-mentioned wire reel side is in and the antenna of above-mentioned RF label reader roughly during in opposite directions position, carry out the signal transmitting and receiving time-controlling arrangement of RF tag recognition action.

4. reinforcing-bar binding machine according to claim 3 is characterized in that,

Be provided with the device that the velocity of rotation of wire reel is reduced at the antenna of the RF label of above-mentioned wire reel side and above-mentioned RF label reader.

5. reinforcing-bar binding machine according to claim 3 is characterized in that,

Also comprise the device that is used to make the RF label on the above-mentioned wire reel side in the receiving and transmitting signal scope of above-mentioned RF label reader, to stop.

6. reinforcing-bar binding machine according to claim 5 is characterized in that,

The device that is used to make the RF label on the above-mentioned wire reel side to stop in the receiving and transmitting signal scope of above-mentioned RF label reader is by being arranged on recess on the wire reel, being arranged on the reinforcing-bar binding machine and combining with above-mentioned recess or the brake component that breaks away from constitutes.

7. reinforcing-bar binding machine according to claim 3 is characterized in that,

Also comprise the device that is used to make wire reel roughly to stop in opposite directions the position at the antenna of RF label on the above-mentioned wire reel side and above-mentioned RF label reader.

8. reinforcing-bar binding machine according to claim 7 is characterized in that,

Be used to device that above-mentioned wire reel is stopped, by being arranged on recess on the wire reel, being arranged on the reinforcing-bar binding machine and combining with above-mentioned recess or the brake component that breaks away from constitutes.

9. according to the described reinforcing-bar binding machine of claim 1～8, it is characterized in that,

As when the power supply of reinforcing-bar binding machine is devoted oneself to work, comprising the ring in interior initialization action such as steel wire conveying, carry out the RF tag recognition operation of above-mentioned RF label reader.

10. wire reel, its steel wire with package is sent and is wound up on the reinforcing bar with ring-type, reverses this steel wire ring, reinforcing bar is carried out fastening, and this steel wire ring is cut off from follow-up steel wire, and wiretie is characterized in that,

Comprise that response from the transmission ripple that is arranged on the RF label reader on the above-mentioned reinforcing-bar binding machine, sends the RF label of the signal that can identify this steel wire kind.

11. a reinforcing-bar binding machine comprises:

The wire reel resettlement section;

The RF label reader; And

Link to each other with this RF label reader, and be arranged on loop aerial in the above-mentioned wire reel resettlement section.

12. reinforcing-bar binding machine according to claim 11 is characterized in that,

Also comprise being arranged in the above-mentioned wire reel resettlement section, and have the reflective photoelectric sensor of illuminating part and light accepting part.

13. reinforcing-bar binding machine according to claim 12 is characterized in that,

Also comprise the roll support boss that is arranged in the above-mentioned wire reel resettlement section;

Above-mentioned loop aerial and above-mentioned photoelectric reflection type sensor, being arranged on above-mentioned roll support boss is that the center roughly is on the position of 90 degree.

14. reinforcing-bar binding machine according to claim 11 is characterized in that, also comprises:

The circular hole that on the wall of above-mentioned wire reel resettlement section, forms; With

Be arranged on the solenoid on the inside of above-mentioned wire reel resettlement section;

Above-mentioned solenoidal iron core can be side-prominent to the surface one of above-mentioned wire reel resettlement section from above-mentioned circular hole.

15. reinforcing-bar binding machine according to claim 14 is characterized in that,

Also comprise the roll support boss that is arranged in the above-mentioned wire reel resettlement section;

It is that the center roughly is on the position of 90 degree that above-mentioned loop aerial and above-mentioned circular hole are arranged on above-mentioned roll support boss.

16. the control circuit of a reinforcing-bar binding machine comprises that RF label reader, trigger switch, steel wire conveying motor-drive circuit, steel wire reverse motor-drive circuit and control part.

17. the control circuit of reinforcing-bar binding machine according to claim 16 is characterized in that,

Above-mentioned control circuit, when from above-mentioned trigger switch input triggering signal, the steel wire recognition data that is read corresponding to above-mentioned RF label reader, carry motor-drive circuit and above-mentioned steel wire to reverse motor-drive circuit to above-mentioned steel wire and control, carry motor and steel wire to reverse motor to steel wire and drive.

18. a wire reel comprises columnar lining, spool flange and is installed in RF label on the said reel flange.

19. wire reel according to claim 18 is characterized in that,

Also be included in the RF label mount pad that forms on the lateral surface of said reel flange;

Above-mentioned RF label adheres on the above-mentioned RF label mount pad.

20. wire reel according to claim 18 is characterized in that,

Above-mentioned RF tag storage steel wire recognition data.

21. wire reel according to claim 20 is characterized in that,

Above-mentioned RF label is also stored producer's data and is made Lot Number.

22. wire reel according to claim 20 is characterized in that,

In above-mentioned RF label, can write the steel wire surplus and use Start Date.

23. wire reel according to claim 18 is characterized in that,

Also comprise reflecrtive mark.

24. wire reel according to claim 23 is characterized in that,

The center of rotation that above-mentioned RF label and above-mentioned reflecrtive mark are arranged on wire reel is that the center roughly is on the position of 90 degree.

25. wire reel according to claim 18 is characterized in that,

Also be included in the circular hole that forms on the said reel flange.

26. wire reel according to claim 25 is characterized in that,

The center of rotation that the circular hole of above-mentioned RF label and said reel flange is arranged on wire reel is that the center roughly is on the position of 90 degree.

27. steel wire that is wound on the described wire reel of claim 18.

28. the binding reinforcing bars method of a reinforcing-bar binding machine is characterized in that, comprises the steps:

Carry steel wire, until the front end arrival steel wire guide nose of steel wire;

The RF label reader is driven;

According to the frequency that is reflected from the RF label that is installed on the wire reel, the kind of identification steel wire;

Corresponding to the kind of this steel wire, set moment of torsion and conveying capacity.

29. the binding reinforcing bars method of reinforcing-bar binding machine according to claim 28 is characterized in that,

Reflecrtive mark to above-mentioned wire reel detects;

When detecting above-mentioned reflecrtive mark, the RF label reader is driven.

30. the binding reinforcing bars method in the reinforcing-bar binding machine according to claim 29 is characterized in that,

When detecting above-mentioned reflecrtive mark, slow down and carry steel wire.

31. the binding reinforcing bars method of reinforcing-bar binding machine according to claim 29 is characterized in that,

When detecting above-mentioned reflecrtive mark, stop to carry steel wire.

32. the binding reinforcing bars method of reinforcing-bar binding machine according to claim 28 is characterized in that,

Forward direction drives unshakable in one's determination;

When above-mentioned iron core is fitted in the circular hole of above-mentioned wire reel, the RF label reader is driven.

33. the binding reinforcing bars method in the reinforcing-bar binding machine according to claim 32 is characterized in that,

When above-mentioned iron core is fitted in the circular hole of above-mentioned wire reel, stop to carry steel wire.

34. the recognition methods of the steel wire kind of a reinforcing-bar binding machine is characterized in that, comprises the steps:

By the signal transmission unit that is arranged on the RF label reader on the reinforcing-bar binding machine, change frequency interimly and send electric wave;

When the wave frequency that is sent and the resonance frequency that is installed in the RF label on the wire reel at once, produce induced-current by the resonant circuit of RF label;

Send electric wave by above-mentioned RF label;

By the signal receiving part of RF label reader, receive the electric wave that above-mentioned RF label is sent;

By the signal transmitting and receiving control part of RF label reader, discern the resonance frequency of above-mentioned RF label;

According to the resonance frequency of above-mentioned RF label, the kind of identification steel wire.

35. the recognition methods of the steel wire kind of reinforcing-bar binding machine according to claim 34 is characterized in that,

When above-mentioned RF label did not respond the electric wave that signal transmission unit sent of above-mentioned RF label reader, being judged as steel wire and wire reel was not certified products.

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