JPH03281024A - Method and apparatus for making up reinforcing bar basket - Google Patents

Abstract

PURPOSE:To knit a reinforcing bar basket without twisting it and accurately by rotating the barrel ring of a reinforcing bar basket machine body and the chuck part of a chuck truck synchronously, winding a hoop reinforcing bar spirally on the external periphery of the main reinforcing bars and welding them. CONSTITUTION:When the starting point of the hoop bar 7 passes a press-contacted part a little, voltage is applied to a rotary electrode 8 and a fixed electrode 36, then, the end part of the hoop bar 7 is welded to the main bars 2 leaving the bent part. When the chuck truck is moved and retreated as the chuck part is rotated, the welded part between the hoop bar 7 and the main bar 2 is positioned in front of the rotary electrode under a bending device 13. When a lift 60 is lowered, a clamping click 11 clamps the main bar 2 and the locking groove of the bent click 12 clamps the hoop bar 7. When a bending cylinder 65 is driven and stretched, the hoop bar 7 is bent to the inside of the periphery where the main bars 2 are arranged. When the main bars 2 are rotated and drawn in a chucked state and the chuck base is retreated, the hoop bar 7 is wound spirally on the external periphery of the plural main bars 2 and the crossed parts are welded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a method and apparatus for knitting a reinforcing bar cage used as a core material for concrete piles, balls, etc.

1 Jubei's technology 1 Conventionally, cylindrical concrete piles, balls, etc. are generally made by setting a reinforcing bar cage as a core material in a cylindrical formwork, filling it with ready-mixed concrete, and then centrifugally forming it. It is manufactured by The iron sieve cage, which serves as the core material inserted into the concrete, is made by winding spiral hoop reinforcements around multiple main reinforcements arranged on the same circumference and welding them using a reinforcement cage knitting machine. It is organized into a circular rebar cage. An example of a conventional reinforcing bar 111Iil is shown in FIG. In Fig. 15, main reinforcements 2' are arranged at a predetermined pitch on the outer peripheral surface of a fixed electrode 36' provided on the # side of the reinforcing bar basket knitting machine main body 3', and the main reinforcements 2' are connected to the bogie 5.
The movable electrode 8' rotates concentrically around the fixed electrode 36' while being pulled by a 7-p bar supply drum located in front of the reinforcing bar basket knitting body 3' and rotating concentrically as well. 14
Then, the hoop muscle 7' is ided by the hoop muscle id 101 and fed into the pressure welding area 8i of the movable electrode 8', and the intersection of the fed hoop muscle 7' and the main reinforcement 2' is welded by pressure welding. Then, hoop reinforcements 7' were wound spirally around the main reinforcements 2' to form reinforcing bars.

[Problem to be Solved by the Invention 1] However, in the above conventional example, the main reinforcement 2'' is not rotated, but the hoop reinforcement 7' is knitted while being rotated.
Since it is a pHlIl method, it has the following drawbacks.

In other words, the diameter of reinforcing bar cage 1'' to be organized and the diameter of reinforcing bar cage 1'
Since the diameter of the movable electrode 8' is different from that of the seven-loop strip supply drum 14' that rotates around the outer periphery of the movable electrode 8', the rotation speed of the movable electrode 8' and the rotation speed of the seven-loop strip supply drum 14' that supplies the hoop strip 7' are different. Therefore, the 7-ply supply drum 14 has to be changed.
Not only is it necessary to adjust the rotation by changing the rotation speed of the motor that rotates the hoop strip or using a temporary brake, but in this case, the moment of inertia of the hoop strip supply drum 14 to be rotated is large, and the hoop There is a drawback that the hoop reinforcing steel 7' becomes slack or tense and breaks when the reinforcing steel supply drum 14' starts or stops rotating.Furthermore, each time the hoop reinforcing steel 7' is wound around the reinforcing bar @1', The weight of the single thread supply drum 14' and the diameter of the hoop thread delivery section change, making adjustment particularly difficult. In addition, in order to automatically knit, sensors are used to measure the feed amount of the hoop strip 7' and the tension of the hoop strip 7' (tension between the movable electrode 8' and the hoop strip supply drum 14') to prevent breakage. However, since the sensor is attached to the rotating 7-ply muscle supply drum 14' and the movable electrode 8', accurate detection is not possible, and this is a knitting method that cannot be automated. Furthermore, since the hoop reinforcement dome 14' is provided on the front surface of the reinforcing bar cage knitting machine main body 3', due to limitations on the installation space and the moment of inertia of the hoop reinforcement dome 14', the hoop reinforcement supply drum 14' is There is a limit to how many hoop muscles 7' can be wrapped around. Moreover, in this way, the 7-ply supply drum 14'
There is a limit to the amount of hoop muscle 7' that can be wrapped around the
If several reinforcing bars 1' are assembled, there will be a shortage of hoop bars 7', which will require time and effort to replace each time.Furthermore, if a huge number of reinforcing bars are attached, it will be difficult to rotate them. The problem is that the force required to drive and stop the device is large, which not only makes it inconvenient to handle, but also makes the device uneconomical. Furthermore, iron sieve fan 1 to be organized
As the diameter of t! increases, the diameter of the 7-ply supply drum 14' also increases. The problem is that j is increased.

The present invention was invented in view of the above-mentioned problem of the conventional example, and its purpose is to be able to form reinforcing bars with high accuracy, and to make it possible to form reinforcing bars with -8% during formation. It is possible to continuously supply hoop reinforcements with a 7-hole reinforcement drum wrapped with a large amount of 7-hole reinforcements without fear of breakage, and the reinforcing steel I! An object of the present invention is to provide a method and device for organizing reinforcing bars that can automate the organization.

[Means for Solving the Problems 1] In order to achieve the above-mentioned object, the method for knitting reinforcing bars of the present invention is based on the body of the knitting machine main body 3 in which the main reinforcing bars 2 constituting the reinforcing bars 1lIL1 are arranged and held at a predetermined diameter and pitch. A chuck part 6 of a chuck cart 5 that grips the ring 4 and the end of the main reinforcement 2 and pulls it.
The hoop reinforcements 7 are spirally wound and welded around the outer circumference of the main reinforcements 2 while rotating and pulling the plurality of main reinforcements 2 coaxially with this circle with the plurality of main reinforcements 2 arranged on the same circumference. It is characterized by organizing u1.

It is preferable that the 7-1 reinforcement 7 to be wrapped and welded is supplied from a fixed position on the side of the main reinforcement 2 at the front position of the knitting machine main body 3.

Further, the reinforcing bar knitting method of the present invention includes rotatably providing the body ring 4 for arranging and holding the main bars 2 constituting the reinforcing bars Ill at a predetermined diameter and pitch on the knitting machine main body 3, and A rotating electrode 8 that rotates concentrically with the body ring 4 is provided on the curved surface, and a pressure welding part 9 that can freely move forward and backward toward the rotating electrode 8 is formed on the side of the rotating electrode 8. That is.

Furthermore, it is preferable to provide a cutter part 1o on the side of the rotating electrode 8 for cutting the hoop muscle 7 to be supplied. It is preferable to provide a bending device 1f13 having a bending claw 12 that engages the hoop line 7 substantially perpendicular to the hoop line 7, so that the bending device 1f13 can move forward and backward toward the rotating electrode 8.

1 Effect] When a rebar cage is knitted by the method described above, the body ring 4 of the knitting machine main body 3 and the chuck portion 6 of the chuck cart 5 are rotated synchronously to arrange a plurality of main bars concentrically. The reinforcing bar cage 1 is knitted by winding and externally welding the hoop reinforcing bars 7 around the outer periphery of the main reinforcing bars 2 in a spiral manner while rotating and pulling the reinforcing bars coaxially with the circle.
- It is no longer necessary to rotate the movable electrode, which is placed outside the muscle supply drum or the fixed electrode. By supplying the hoop strips 7 to be wound and welded from a fixed position on the side of the main reinforcing bars 2 at the front position of the knitting machine main body 3, a large amount of hoop strips are continuously attached to the hoop strips by the hoop strip supply drum 14. It became possible to supply the hoop muscle 7 by doing so.

Further, the torso ring 4 is rotatably provided, and a rotating electrode 8 that rotates concentrically with the torso ring 4 is provided on the front surface of the knitting machine main body 3. By forming the pressure welding part 9 that can move forward and backward, it is possible to knit the reinforcing bar cage 1 by wrapping and welding the hoop reinforcing bars 7 while rotating the main reinforcing bars 2 arranged at a predetermined diameter and pitch using a simple device. Toru. Then, 1 of the interchanging electrodes 8
11, a cutter part 1 for cutting the hoop streak 7 to be supplied;
0, or a bending device 113 provided with a gripping claw 11 for grasping the main reinforcement 2 on the front side of the rotating electrode 8, and a bending claw 12 for engaging the hoop reinforcement 7 substantially perpendicular to the main reinforcement 2.
By providing it so that it can move forward and backward toward the rotating electrode 8,
Cutting the supplied hoop reinforcement 7 to an appropriate length, bending the end of the hoop reinforcement 7, and wrapping the main reinforcement 2 around it can now be done automatically without manual intervention.

[Example 1] The present invention will be described in detail below based on an example shown in the accompanying drawings.

The body ring 4 is freely provided on the knitting machine body 3 of the reinforcing bar cage 1. For example, as shown in FIGS. 3(a) and 3(b),
A rotary ring 15 is provided on the outer periphery of the body ring 4, and the rotary ring 15 is rotatably arranged on the rotary a-ra 16, and a transmission belt 18 is attached to another ring 17 provided on the outer surface of the body ring 4.
The rotation of the motor 19 is transmitted through the cylinder ring 4 to rotate the body ring 4. In FIG. 3(a), 20 is a bearing that supports the shaft of the rotating roller 16, and the base frame 2
It is provided in 1. Of course, the method of rotatably attaching the trunk ring 4 to the knitting machine main body 3 is not limited to the above embodiment.

The body ring 4 is provided with means for arranging and holding the main reinforcements 2 constituting the iron M'IJ cage 1 at a predetermined diameter and pitch.In the embodiment shown in FIG. Holes 22 are provided at a predetermined pitch on a plurality of circumferences that are concentric with each other and have different diameters. By inserting the main reinforcing bars 2 into the body ring 4, the main reinforcing bars 2 are arranged and held at a predetermined diameter and pitch at a predetermined pitch. In the embodiment shown in FIG. 3(,), a plurality of ring parts 23 having different diameters are arranged concentrically at the rear end of the body ring 4, and the smaller the diameter of the ring parts 23, the more rearward the ring parts 23 are. Each ring portion 23 has a stepped shape that protrudes toward the
A plurality of grooves 24 are provided on the outer peripheral surface of the ring s23, and the grooves 24 of the ring s23 in each stage communicate with the holes 22 provided on the circumference of each stage of the body ring 4. The main reinforcement 2 is automatically supplied from the cut groove 24 to the hole 22 by the main reinforcement supplying means 25, or the main reinforcement 2 is manually inserted into the hole 22.

Here, an example of the main reinforcement supplying means 25 will be described based on the size of approximately 2 circles in FIG. In other words, insert the main reinforcement 2 into the cut 124 of each ring part 23 at the position corresponding to the arbitrary ring fi23), push the main reinforcement 2 in with the main reinforcement pusher fI128, and insert the main reinforcement 2 into the hole 22 of the body ring 4. It is supposed to be done.

A rotating electrode 8 is attached to the cocoon end of the body ring 4.

In the embodiment shown in FIG. 3(,), holes 22 are provided on a plurality of concentric circumferences with different diameters, so that reinforcing bars wA1 with a plurality of diameters and pitches can be formed. A rotating electrode 8 with a diameter corresponding to the diameter of the reinforcing bar to be used is attached.

As shown in FIGS. 3(a) and 4(b), a 7-ply muscle supply pressure welding device [29] is provided at a side position of the rotating electrode 8 in front of the knitting machine main body 3. The hoop muscle supply pressure welding device W129 is attached to the front part of the base frame 21 of the knitting machine main body 3, and this 7-pipe muscle supply pressure welding device [29 is pressure welded] [9, 7, sieve supply section 30, and cutter section 10]. It is composed of: 7-pu muscle supply pressure welding device! 29 is located on the side of the rotating electrode 8 as described above, and is provided so as to be able to move forward and backward toward the rotating electrode 8.
It is adapted to be moved to a predetermined position by sliding left and right according to the diameter of the reinforcing bar cage 1 to be knitted.

As shown in FIGS. 6(a), (b), and (c), the pressure welded part 9
A pressure contact lever 33 is rotatably supported by a pin 34 at the end of a slide table 32 which is slidably attached to a base 3 attached to a base frame 21 of a knitting machine main body 3.
The other end of the pressure contact lever 33 is elastically pressed by a pressure spring 35, and the elastic force of the pressure spring 35 presses the main reinforcement 2 and the hoop reinforcement 7 toward the rotating electrode 8 with a light force. It is something that has a role to play. Here, the pressure welding lever 3 serves as a fixed electrode 8, and when a voltage is applied to the rotary electrode 8 and the fixed electrode 36, the intersection of the main reinforcement 2 and the hoop reinforcement 7 is pressure welded. The slide table 32 slides left and right in FIG. 4 (@) by a push-pull sill 37, 38 is a linear guide, and 39 is a linear bearing.

As shown in FIG. 4(a), the 7-pipe muscle supply section 30 is attached to the slide table 32 by an attachment arm 40 so as to be located below the pressure welding section 9, and is spaced at a constant distance from the pressure welding section 9. Figure 4b with the pressure search melting N section 9 while maintaining the
) that moves left and right. Figure 7(a) (
bHc), the mounting arm 40 has a hoop line 7.
A delivery loaf 41 is pivotally supported, and this delivery roller 4] is rotated by a drive motor 42.

A rotating lever 43 is rotatably supported on the mounting 7-m 40 by a pongee 44, and a feeding roller 45 facing the feeding loaf 41 is provided at one end of the rotating lever 43. By actuating the rotating sill 46 connected to the other end of the lever 43, the feed roller 45 approaches the feed roller 41, sandwiching the hoop strip 7 between the feed rollers 41 and 44, and drives the drive motor 42. The hoop strip 7 sandwiched between the feed rollers 41 and 44 is sent out toward the pressure welding part 9.

A pair of idle rollers 47 are provided below the feed rollers 41, 44, and serve as id for feeding the hoop strip 7 to the feed rollers 41, 44@. Note that the outer peripheral surfaces of the feed roller 41 and the idle roller 47 are provided with a circumference 8148 into which the hoop line 7 is fitted.

The cutter unit 10 is a device for cutting the hoop muscle 7 fed from the 7-pipe muscle supply unit 30 to a predetermined length, and is located between the pressure welding part 9 and the 7-pipe muscle supply unit 30. It is attached to the slide stand 32 by a support @ 49, and by sliding the slide stand 32, it moves left and right in FIG. It is something to do. As shown in FIGS. 8(a) and 8(b), a cutting sill 50 is attached to the support arm 49, and 7 frames are attached to the end of the cutting sill 50 from which the e17 dot 51 protrudes, avoiding the rod 51. A shaft 52 is provided protrudingly, and this seven-lem body 52
is provided with an insertion hole 53 and upper and lower side holes 54g and 54E+, and a fixed cutter 55 is provided on the side of the lower opening of the insertion hole 53 of the seven-lem body 52. A pair of idle rollers 56 are provided at the lower part of the 7-frame body 52, and serve as the id of the hoop muscle 7 supplied from the 7-beam muscle supply section 30, and serve as the id of the hoop muscle 7 supplied from the 7-beam muscle supply section 30, and the lower id hole 54b, the insertion hole 53, It has the role of guiding to the upper side hole 54@. A sliding plate 57 having a movable cutter 58 at its tip is attached to the rod 51 in the seven-frame body 52, and by operating the cutting sill 50, the movable cutter 58 intersects with the fixed cutter 55 to open it. *t is made so as to cut the hoop muscle 7.

In front of the knitting machine main body 3, a bent i[13 is provided at a position on the side of the rotating electrode 8 (in the embodiment shown in FIG. 4(a), on the upper side of the rotating electrode 8). The bending device W113 is attached to the front part of the base frame 21 of the knitting machine main body 3, and this bending device W113 bends the end of the hoop reinforcement 7 fed from the pressure welding part 9 into the inside of the reinforcing steel 1 to be knitted. This is a device that wraps around the main reinforcement 2. In other words, hoop lines 7 will not appear on the inner and outer surfaces of the concrete pile to be formed.)
This is a device for folding the paper into a shape. Then, the pressure welding part 9
In a later process, gripping claws 11 and bending claws 12, which will be described later, are provided so as to be located in front of the rotating electrode 8. The bending device 13 is attached to the base frame 21 of the knitting machine main body 3.
An ID 7 frame 59 is erected at the top of the front part of the
As shown in a) and (b), an idle wheel 61 is provided on the lifting platform 60 so as to sandwich the 141 part 59a of the idle frame 59, so that the lifting platform 60 is raised and lowered by the operation of the lifting sill 62. It has become. A holding frame 63 is rotatably attached to the lifting table 60, a reversing motor 64 is provided on the lifting table 60, and the upper part of a bending sill 65 is connected to a bin 66 via a coupling or the like. At the F end of the rod 67 of the shilling 65, the upper part of a bent claw 12 shaped like an abbreviation is pivotally supported by a bottle 68, and at the lower end of the holding frame 63, a gripping claw 11 is formed.
The gripping claw 11 and one end of the bending claw 12 are pivotally supported by a pin 69, and by operating the bending sill 65, the other end of the bending claw 12 is rotated downward lj. That is, the outer sill 62 is activated to grip the main reinforcement 2 with the grip claw 11, and in this state, the bending sill 65 is activated to rotate the bending claw 12 downward and push the end of the hoop reinforcement 7, as shown in FIG. It is folded as shown in (a) and (b). Also, when the reversing motor 64 is rotated, the prayer bending claw as shown in Figure 9(e)
2. The gripping claws 11 are reversed left and right to bend the hoop strips 7 in the opposite direction. In this case, the folded shilling 65 is also reversed. A locking groove 70 is provided at the end of the bending claw 12, as shown in FIG. 10(I).

As shown in FIGS. 4(a) and 5, the rotating electrode 8 is supplied with power by an electrode brush 71 coming into contact with, for example, the outer peripheral surface of the body ring 4.

7-The hoop muscle supply drum 14 is arranged at a lateral position in front of the knitting machine main body 3, and the hoop muscle supply drum 14 has the hoop muscle supply drum 14 wrapped around it, and the hoop muscle supply pressure welding device W1
The hoop muscle 7 is fed to a 7-pipe muscle supply section 30 of 29, and is driven by a motor equipped with a brake. FIG. 4 ([I) (c) shows another embodiment of the hoop muscle supply drum 14, in which only a brake mechanism side 105 is provided (no drive motor is provided). ), in this case hoop muscle 7
is fed into the knitting machine main body 311111 by a feeding device 106 separately provided between the knitting machine main body 3 and the 7-brace supply drum 14. The brake mechanism 105 is for preventing the hoop muscle 7 from being fed more than a predetermined amount and loosening due to the rotation due to the inertia of the seven-loop muscle supply dome 14, and for loosening the hoop muscle 7 due to the tension provided in the feeding device 1106. It is detected by the detection sensors S,' and operates the air cylinder 107 to restrict the rotation of the 7-pipe muscle supply dome 14. That is, in the brake machine #1105, when the air cylinder 107 is operated, the lever 108 rotates as shown in FIGS.
09 applies a brake by pressing against a brake wheel 110 provided on the shaft 14m of the 7-ply muscle supply drum 14. In FIGS. 4(a) and 4(b), reference numeral 111 is an adjustment spring, which controls the braking force l! ! 1.
12 is a bearing. Also, 113 is the infeed 1110
The deceleration motor 114 provided at 6 is a grooved roller that winds the hoop strip 7 several times and sends it out.
Reference numeral 5 designates an ID, 116 a tension detection sensor S, and an adjustment spring. The tension detection sensors S,' rotate when the hoop muscle 7 relaxes, thereby operating the limit switch 117.

As shown in Figures 1 and 2, there is a chuck part 6 in front of the knitting machine main body 3 that grips and pulls the ends of the main reinforcing bars 2 held at a predetermined diameter and pitch by the body ring 4. The chuck cart 5 is movably arranged, and the chuck cart 5 is provided with running wheels 73 that run on rails 74, and the running wheels 73 are rotated by a motor 72. A chuck e6 is rotatably provided on the chuck cart 5. The chuck section 6 for chucking the main reinforcement 2 is composed of a locking plate 76 having a locking hole 75 and a chuck plate 78 having a gourd-shaped locking hole 77, as shown in FIG. 11, for example. The locking plate 76 and the chuck plate 78 each have a disk shape, and the locking plate 76 is fixed to a main shaft 80 rotatably attached to the main body frame 79 of the chuck cart 5, and the chuck plate 78 is rotated on the main shaft 80. It can be installed freely. Here, the locking plate 76 is composed of two locking plates 76m and 76b, and a chuck plate 78 is provided between the two locking plates 76a and 76b.
It is a superposition with . Locking plate 76@, 7
6b is provided with a plurality of circular locking holes 76 having a predetermined diameter and a predetermined pitch as shown in FIGS. ), a plurality of gourd-shaped locking holes 77 are connected to the locking hole 75.
It is formed at a position corresponding to The large hole portion 77m of the locking hole 75 and the gourd-shaped locking hole 77 is threaded into the heading portion 2aC of the end of the main reinforcement 2.
When the screws 2b and 2b are screwed together, the hole 77b of the gourd-shaped locking hole 77 is a circular hole that is large enough to fit the header 2b) into the hole 77, and the small hole 77b of the gourd-shaped locking hole 77 is set so that the heading 2a can be locked.
The hole is smaller than a. As shown in FIG. 12, a bin 81 is provided on the outer periphery of the locking plates 76m and 76b, and
A bottle 82 is provided on the outer periphery of the chuck plate 78, and a bottle 81.
A spring 83 is tensioned between 82 and the elastic force of the spring 83 causes the chuck plate 7 to move against the locking plates 76a and 76b.
8 in the direction of the arrow in FIG. 12 (ft). The end of the main reinforcing bar 2 is inserted into the t& portion of the locking hole 75 of the locking plate 76b, and a guide vibrator 86 is provided.

At the rear of the locking plate 76, a sliding portion 85 having a sphide plate 84 is slidably fitted onto the main shaft 80. A pressing rod 98 is slidably inserted into the guide 186 on the front surface of the slide plate 84.
is a protruding part.

A connecting plate 87 is connected to the slide plate 84 via a bearing, and the connecting plate 87 is moved toward the rear of the cocoon by a pressing ring 88.

At least one of the locking plate 76 and the chuck plate 78 is rotated in the main body frame 79 to lock the end of the main reinforcement 2 into the gourd-shaped locking hole 7.
The 9 rotation locking device 89, which is provided with eight rotation locking devices for locking the 7, has the following configuration. That is, as shown in FIG.
0, and the -#a1 portion of a rotary lever 91 rotatably supported on the main body frame 79 is supported on this horizontal sill 90. By operating the horizontal sill 90, the rotary lever 91
A locking portion 92 provided at the tip of the holder is adapted to move up and down. The locking portion 92 is provided with a fixed pawl 93 and a sliding pawl 94, and when the locking portion 92 moves upward, the locking portion 9
The sliding claw 94 of No. 2 engages with the notch Wi95a provided on the circumference of the chuck plate 78, and the fixed claw 94 engages with the locking plate 76m.
, 76b is designed to be locked to the cut m95b,
When the locking portion 92 moves downward, the slide claw 94 is disengaged from the cut groove 95a, and the fixed claw 93 is disengaged from the cut groove 95b. Here, the fixed claw 93 is fixed to the upper surface of the locking part frame 96 of the locking part 92, and the sliding claw 94 is provided in the locking part frame 96 so as to be slidable. The slide pawl 94 is moved by the operation of a locking sill 97 provided. Therefore, when the locking portion 92 moves upward, the slide claw 94 moves in the tangential direction of the chuck plate 78 to rotate the chuck plate 78 by a slight angle.

The end of the main reinforcement 2 inserted into the large hole 77a of the gourd-shaped locking hole 77 of the chuck plate 78 is inserted into the small hole 77.
b. The end of the main reinforcement 2 is inserted with the locking hole 75 and the large hole 77a aligned, and the small hole 77b of the gourd-shaped locking hole 77 is inserted by the above operation.
When the slide plate 84 is moved to the curved blade and the end of the main reinforcement 2 is pushed with the press rod 98, the heading part 2a of the main reinforcement 2 is locked in the pressed state in the small hole part 77b. Become. With the plurality of main reinforcing bars 2 chucked in this manner, the chuck cart 5 is pulled and travels backward, and the drive motor 99 rotates the main shaft 80 via the pulleys 118, 119 and the belt 20, thereby rotating the main shaft 80. The chuck part 6 is rotated to rotate and pull the plurality of main reinforcing bars 2 coaxially with this circle in a state where they are arranged on the same circumference. The reinforcing bar cage is knitted by wrapping and welding it around the outer circumference of the reinforcing bar cage. Here, the chuck portion 6 is set to rotate in synchronization with the body ring 4. Figure 14 shows the chuck cart 5.
FIG. 7 is a side view of the vehicle in a state where it is retreating along the rail 74. In FIG. 14 (@), reference numeral 100 indicates a cage support for supporting reinforcing bars III.

The chuck portion 6 and the body ring 4 may be rotated synchronously by electrically controlling the motor 19 and the drive motor 99, respectively, as shown in FIG. 14(b). A spline shaft 121 is stretched over the running portion of the knitting machine main body 3 and the chuck cart 5, and the spline shaft 1
Gear and bully 122 installed in 21, spline boss 1
The chuck part 6 and the body ring 4 may be rotated synchronously by a rotation transmission means such as 23, 125 and 126 are
7.128 is a belt. In this case, the rotation transmission ratio is configured such that the rotation transmission means rotates synchronously, and the rotation transmission ratio is 12.
4 is a drive motor that rotates the spline shaft 121.

Next, a method of organizing reinforcing bar dragons using the apparatus of the present invention configured as described above will be explained.

A plurality of main reinforcements 2 are pushed through the holes 22 of the body ring 4 of the knitting machine main body 3 by the main reinforcement supply means 25, and the body ring 4
is supplied to the front of the Then, the chuck cart 5 is moved directly to the rotating electrode 8 at a position where the end of the main reinforcing bar 2 is attached to the front surface of the body ring 4 (supplied along the outer surface of the electrode 8 and slightly protruding from the front surface of the rotating electrode 8). The end portion (heading portion 2a) of the main reinforcing bar 2 is chucked with the chuck part 6 provided on the chuck cart 5. In this state, the hoop bar supply dome 14 is placed in the hoop bar supply dome 14. Sending out the 7-pipe wire 7 sent to the single-ply wire supply section 30, rotating the loaf 41.45, and feeding it to the pressure welding section 9;
In this case, the press-welded parts 9.7 and 1-beam reinforcement supply part 30 are moved to a predetermined position according to the diameter of the reinforcing bars 1!1 to be knitted by operating the push/pull cylinder f31. Further, the pressing lever 33 is in a state in which the 7-pipe reinforcement 7 is pressed against the rotating electrode 8 via the main reinforcement 2. When a voltage is applied to the rotating electrode 8 and the fixed electrode 36 when the starting end of the 7-p muscle 7 has slightly passed the press-contact part, a current flows between the IL poles 8 and 36, and the 7-p muscle 7
is welded to the main reinforcement 2, leaving a bent part at the end (which intersection of the main reinforcement 2 and the 7-pipe reinforcement 7 is welded), while rotating the chuck part 6 in this state (see Fig. 4(a)). When the chuck cart 5 is moved slightly and the chuck portion 6 is slightly retracted, the main reinforcement 2 rotates slightly and the welded portion between the hoop reinforcement 7 and the main reinforcement 2 is bent under the bending device 13. It is located on the curved surface of the rotating electrode 8. In addition,
The j1 portion of the 7-pipe line 7 is pressed by the pressing lever 33 and forms a substantially circular arc. Next, when the elevator platform 60 is lowered, FIG.
) As shown in (b), the gripping claw 11 grasps the main reinforcement 2, and the locking groove 70 of the bending claw 12 pinches the hoop reinforcement 7 that is approximately perpendicular to the main reinforcement 2. Here, the folding claw 65
When activated and stretched, the hoop reinforcing bars 7 are folded around the main reinforcing bars 2 as fulcrums inside the circumference around which the plurality of main reinforcing bars 2 are arranged (that is, inside the reinforcing bars 11). In this case, the ends of the hoop reinforcements 7 to be bent are bent so as to fit within the thickness of the concrete pile to be formed.

After that, the chuck cart 5 is moved backward while rotating and pulling the main reinforcement 2 while the main reinforcement 2 is chucked. As a result, the hoop reinforcements 7 are fed in order and the plurality of main reinforcements 2 arranged on the circumference are moved. The reinforcing bars 11!1 are wound spirally around the outer periphery of the reinforcing bars 11!1, and the intersections of the main reinforcing bars 2, 7 and 7 are welded to form reinforcing bars 11!1. The current flowing here may be alternating current or direct current, and the rotating main reinforcement 2
The position may be detected by a position sensor Sl and current may be caused to flow.

In addition, it is better to always apply a voltage between the electrode 8.36 so that a current flows every time the main reinforcement 2, etc. passes.
After knitting a predetermined length of 1, the movable cutter 58 of the cutter section 10 is moved, and the movable cutter 58 and fixed cutter 55 cut the 7-pipe reinforcement 7.
is rotated, and when the terminal end of the hoop bar 7 is located below the bending device 13, the rotation of the reinforcing bar III is stopped, the grip claw 11 and the bending claw 12 are lowered, and the terminal end of the hoop bar 7 is bent. In this case, the gripping claw 11 is driven by the reversing motor 64
to reverse the left and right sides as shown in Figure 9(c).
180°), the reinforcing bar of a predetermined length l! ! 1, when the rear end of the main reinforcement 2 is detached from the rotating electrode 8, the chuck part 6 is operated to release the locking state of the main reinforcement 2, and the main reinforcement 2 is removed from the cage rest 100. The reinforcing steel 1 is transferred to the next process using a transfer device such as a crane.

In addition, in the above-mentioned reinforcing bar knitting method, there is a rotation speed sensor S2 on the extrusion roller 41, and a ring-shaped position sensor S through which the hoop bar 7 passes in the vicinity thereof.

If such a device is provided, it is possible to detect the length of the 7-ply thread 7 to be fed out, the 1st part of the 7-ply thread 7, and the rear end. If a tension detection sensor S of the 7-pipe muscle 7 is provided (for example, by pressing the hoop muscle 7 with a constant elasticity and detecting the tension by a change in elasticity or a displacement of the 7-pipe muscle 7), tension can also be detected. It is possible to automate everything.

[Effect of the invention 1] In the present invention, as described above, the body ring of the main body of the knitting machine, in which the main bars constituting the reinforcing bars are arranged and held at a predetermined diameter and pitch, and the ends of the main bars are gripped and held. The chuck part of the chuck cart to be pulled is rotated in synchronization with the chuck section, and with the plurality of main reinforcements arranged on the same circumference, the hoop reinforcements are spirally drawn around the outer periphery of the main reinforcements while being rotated and pulled coaxially with this circle. Since the reinforcing bars are assembled by winding and welding, the reinforcing bars are not twisted and can be organized with high precision.In addition, there is no need to rotate the hoop reinforcement supply drum or fixed electrode, which has a large moment of inertia, so the reinforcing bars can be easily assembled. There is no fear that the attached hoop lines will break during knitting.

In addition, in the invention as claimed in claim 2, since the hoop strips to be wound and welded are supplied from a fixed position on the side of the main reinforcing bars at the front position of the knitting machine main body, a large amount of hoop strips can be wound continuously on the supply drum. In addition, it is possible to easily detect the feed amount of the hoop reinforcement and the tension of the hoop reinforcement using a sensor, etc., thereby making it possible to automate reinforcing bar AM precepts.

In addition, in the invention as set forth in claim 3, a body ring for arranging and holding main reinforcing bars having M4 reinforcing bars with a predetermined diameter and pitch is rotatably provided on the knitting machine main body, and the main reinforcing bars of the knitting machine main body are rotatably provided. A rotating electrode that rotates concentrically with the body ring is provided on one side, and a pressure welded part that can freely move forward and backward toward the rotating electrode is formed on the lli part of the rotating electrode. It is possible to organize reinforcing bars by holding and rotating main reinforcing bars arranged at a predetermined diameter and pitch, and then wrapping and welding hoop reinforcing bars.

Furthermore, in the invention as claimed in claim 4, since a cutter portion for cutting the supplied hoop muscle is provided on the side of the electrode, the supplied 7-pipe muscle can be automatically cut by a simple device. It can be cut to a predetermined length.

Furthermore, on the front surface 111 of the rotating electrode, a bending device is provided with a gripping claw for grasping the main reinforcement and a bending claw for engaging a 7-pipe reinforcement substantially perpendicular to the main reinforcement, so that the bending device can move forward and backward toward the rotating electrode. Since this is provided, the work of bending the 7-ply reinforcing bars, wrapping them around the main bars, etc. can be performed automatically without manual intervention, and the knitting time can be shortened. Furthermore, since the bending device is provided so as to be able to move forward and backward toward the rotating electrode, it can be adapted to any diameter of the main reinforcing bars, making it an ideal device for automation.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view of one embodiment of the present invention, Fig. 2 is a schematic side view of the same as above, and Fig. 3 (a) and (b) are a partially cutaway side view and a schematic front view of the main body of the knitting machine as above. Cross-sectional view, Figure 4 (a
), (b), and (c) are a front view of the knitting machine main body as above, a front view and a plan view with parts omitted of another embodiment of the hoop muscle supply drum, and Fig. 5 is a part of the attachment part of the electrode brush as above. 6(aHb)(c) is a front view, side view, and plan view of the same pressure welding section 31, and FIGS. 7(a)(b)(
e) is a front view, a side view, and a plan view of the supply section portion same as above, FIGS. 8(a) and (b) are front views and side views of the cutter portion portion same as above, and FIGS. e) is a front view, a side view, and a side view of the folding device portion same as above, and a side view in an inverted state, No. 10
Figures (a) and (b) are explanatory diagrams illustrating the bending of the 7-loop line and a front view of the hoop line being bent by the bending claws, Figure 11 is a partially cutaway front view of the chuck cart; Figures 12 (a), (b), (c), and (d) are a partially cutaway front view of the same chuck device as above, a front view of the outer locking plate portion, a front view of the chuck plate portion, and the inner locking plate portion. Figure 13 (aHb) and (e) are cross-sectional views of the X-X1 section of Figure 12 Ca>, and Figure #S12 (
, ), Z-Yli section in Figure 12(a)
14(a) and 14(b) are lliii views showing the retracted state of the same chuck device as above, and a side view of another embodiment in which the chuck part and the barrel ring rotate synchronously, FIG. 15 is a schematic side view of a conventional example, in which 1 is a reinforcing bar, 2 is a main bar, 3 is a knitting machine body, 4 is a trunk ring, 5 is a chuck truck, 6 is a chuck part, and 7 is a 7-ply bar. , 8 is a rotating electrode, 9 is a pressure welding part, 10 is a cutter part, 11 is a gripping claw, 12 is a bending claw, and 13 is a bending device.

Claims (5)

[Claims] (1) The body ring of the knitting machine body, which holds the main bars that make up the reinforcing bar cage arranged and held at a predetermined diameter and pitch, and the chuck part of the chuck truck that grips and pulls the ends of the main bars are rotated in synchronization. The method is characterized in that, with the plurality of main reinforcements arranged on the same circumference, the hoop reinforcements are wound spirally around the outer circumference of the main reinforcements and welded while being rotated and pulled coaxially with this circle to form a reinforcing bar cage. How to organize a rebar cage. (2) The method of knitting a reinforcing bar cage according to claim 1, characterized in that the hoop reinforcing bars to be wrapped and welded are supplied from a fixed position on the side of the main reinforcing bars at a position in front of the main body of the knitting machine. (3) A body ring that holds the main reinforcing bars that make up the reinforcing bar cage arranged and held at a predetermined diameter and pitch is rotatably provided on the knitting machine body, and a rotor that rotates concentrically with the body ring is provided on the front of the knitting machine body. 1. A reinforcing bar basket knitting device, characterized in that an electrode is provided, and a pressure welded part that moves freely forward and backward toward the rotating electrode is formed on the side of the rotating electrode. (4) The reinforcing bar cage knitting device according to claim 3, characterized in that a cutter portion for cutting the supplied hoop reinforcement is provided on the side of the rotating electrode. (5) On the front side of the rotating electrode, a bending device including a gripping pawl that grips the main reinforcement and a bending pawl that engages a hoop muscle that is substantially perpendicular to the main reinforcement is provided so as to be able to move forward and backward toward the rotating electrode. The reinforcing bar cage knitting device according to claim 3, characterized in that: