JP2557334B2 - Knitting device for polygonal rebar cage - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to organize system of polygon rebar cage.

[0002]

2. Description of the Related Art For example, in order to construct a pillar of a concrete building, a form is cylindrically assembled around a reinforcing bar and concrete is placed inside the form. Since it takes a lot of time to assemble and dismantle, in recent years, a form is used by manufacturing a square concrete cylinder in a factory, externally inserting it into a reinforcing bar on the spot, and placing concrete in this concrete cylinder. A method of constructing concrete pillars has been proposed, and the work of assembling and dismantling the formwork is not required, so the construction period can be shortened, cost can be reduced, and a wide variety of surface finishes for pillars can be performed. There is an advantage that it can be adopted.

By the way, in order to manufacture the above-mentioned rectangular cylindrical concrete cylinder, a rectangular reinforcing bar cage is required for reinforcement and shape retention. .

Conventionally, in order to manufacture a quadrangular rebar cage, as shown in FIG. 10, a wire mesh 1 having a required size in a plane is made and is bent into a quadrangular cylinder at a position indicated by a dashed line in FIG. It was formed by binding and welding the abutted ends.

[0005]

However, the method of manufacturing a rebar cage from a wire mesh requires many steps such as wire mesh manufacturing, wire mesh bending, end bundling, and welding, resulting in poor manufacturing efficiency and cost reduction. There is a problem of being expensive.

Therefore, an object of the present invention is to efficiently and automatically knit a polygonal reinforcing rod cage such as a quadrangle.
And to provide a Ru knitting forming apparatus can supply polygonal reinforcing bar cage at a low cost.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is arranged so that it can rotate in a fixed position.
Placed on the rotating drum and installed on this rotating drum, many
Arrangement of the vertical lines of the book in a polygonal shape coaxial with the axis of rotation of the drum
One-sided electrode, which is supported so that it can move freely in the longitudinal direction.
Electrode ring and one of the polygons of vertical stripes on the rotary drum.
A drive mechanism for intermittently rotating an angle equal to the side,
It moves forward and backward with respect to the drum in front of the drum.
With the dolly arranged in this way, it is rotatably attached to this dolly,
A chuck that holds the tip of the vertical follower group that penetrates the electrode ring.
And the chuck mechanism on one side of the polygon of the vertical stripes.
A drive unit installed on the trolley so that it can be intermittently rotated by an equal angle.
And a spiral line on the outer periphery of the vertical line group that has passed through the electrode ring.
Is supplied and is wound spirally by the rotation of the vertical muscle group and the movement in the axial direction.
The spiral muscle supply part to attach and the winding part of the spiral muscle
It is placed at a position facing one side of the vertical muscle group that has stopped
Welding the intersection of the vertical and spiral muscles on one side when the muscle group is stopped
One-sided electrode and a drive mechanism for the rotary drum and a chuck.
The drive mechanism of the vibration mechanism is the same as the rotating drum and the chuck mechanism.
Electrically or mechanically to rotate intermittently in synchronization with the angle
The other electrode is connected to one side of the vertical stripe group to be stopped.
To move away and recede and move in the length direction of one side,
By moving the spiral muscle while pressing it, the vertical muscle and the spiral muscle intersect.
It employs a configuration in which the points are welded .

[0008]

[0009]

[0010]

[Operation] A large number of vertical stripes are inserted through the electrode ring of the rotary drum in a polygonal arrangement, and the tip of each vertical stripe is firmly held by the chuck mechanism of the truck, and the rotary drum and the chuck mechanism are angled to one side of the polygon. Only while rotating intermittently, the carriage is given intermittent movement that moves forward only during the rotation, and the spiral muscles that are supplied to the outer circumference of the vertical muscle group that intermittently rotate and move in the axial direction are spirally wound. .

The other electrode, which is stopped at the standby position when the vertical muscle group is stopped, moves toward one side of the polygon and moves in the length direction of the one side while being pressed against the spiral muscle and supplied to the outer periphery of the vertical muscle group. The intersection of the spiral line and the vertical line thus formed is electrically welded to the one electrode.

The other electrode retreats after welding one side and returns to the standby position. After that, the group of vertical stripes rotates by an angle equal to one side and moves axially for a predetermined length, and the next one side has the other electrode. When stopped to the side, the other electrode welds the intersection of this side of the spiral and the longitudinal.

As described above, the polygonal reinforcing bar cage can be automatically knitted by sequentially welding the spiral bars of one side of the polygon and the vertical bars every time the rotation of the vertical bar group is stopped.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 6 to FIG. 6, the knitting device for the rectangular rebar cage is located behind the knitting machine 11 and the knitting machine 1 and has a longitudinal bar A.
A gutter member 12 on which the group is placed, a carriage 13 which moves forward and backward with respect to the knitting machine 11 at a position in front of the knitting machine 11, and a second electrode mechanism 14 arranged at a position below the front part of the knitting machine 11. ,
The knitting machine 11 is arranged at one side position, and is composed of a straightening tensioner 15 for correcting the spiral muscle B supplied to the knitting machine 11 and a chuck mechanism 16 attached to the carriage 13.

As shown in FIGS. 1 to 3, the square reinforcing bar cage knitting machine 11 has a pair of support plates 1 erected on a base stand 17.
8 and 18 are provided with a plurality of rollers 19, and both support plates 18 and 1
A circular cylindrical rotary drum 20 is arranged on the base 8 so as to be rotatable around a horizontal axis center by being supported by rollers 19, and a drive mechanism 21 for intermittently rotating and driving the drum 20 on a base table 17. Is provided, an electrode ring 22 serving as one electrode is fixed to the front surface of the rotary drum 20, and the other electrode mechanism 14 is arranged at a lower front position of the electrode ring 22.

The electrode ring 22 is disk-shaped, and has a large number of insertion holes 23 at the central portion thereof, through which the longitudinal stripes A penetrate in the axial direction.
Are arranged in a rectangular shape coaxial with the rotary drum 20, and each vertical stripe A is supported inside the portion surrounded by the group of insertion holes 23 on the front surface side of the electrode ring 22 with its outer periphery being substantially half exposed. A supporting frame 24 is provided so as to project, and a guide pipe 25 having a vertical streak A is projected at the portion of each insertion hole 23 on the rear surface side of the ring 22.

The electrode ring 22 is prepared in such a manner that the insertion holes 23 having different rectangular arrangement diameters are prepared. The electrode ring 22 is detachably attached to the rotary drum 20 by means of bolts so that the reinforcing bar cages having different square diameters can be knitted. ing.

The electrode ring 22 serves as a negative electrode due to the electrode slidably contacting the outer peripheral surface of the rotary drum 20, and the drive mechanism 21 for rotating the rotary drum 20 is driven by the servo motor 2.
6 and a speed reducer 27, and a small diameter gear 28 provided on the output shaft of the speed reducer 27 and a gear 29 provided on the outer circumference of the rotary drum 20.
The rotary drum 20 is intermittently rotated at an angle of 90 ° which is equal to one side of the square arrangement of the insertion hole 23 by engaging with the servo motor 26 or the intermittent index.

In the other electrode mechanism 14, as shown in FIGS. 4 to 6, a horizontal shaft 30 is rotatably attached to the lower part of the front surface of the support plate 18, and the horizontal shaft 30 is connected to a motor 31 capable of rotating in the forward and reverse directions. At the same time, the sprockets 32 and 33 are fixed to both ends of the horizontal shaft 30, and the sprockets 34 and 35 are rotatably attached to both upper sides of the support plate 18 so that the sprocket 32 and 34 and the 33 and 35 corresponding to the upper and lower sides are fixed. Chains 36 and 37 are wound around.

Brackets 40 and 41, which are vertically movable along guides 38 and 39 fixed to the support plate 18, are arranged at positions on both sides of the front surface of the support plate 18, and horizontal between the brackets 40 and 41. Two guide rods 42 and 43 that are parallel to each other in a state are erected, and both ends of the chains 36 and 37 are connected to the upper and lower sides of the brackets 40 and 41 at corresponding positions, and the guide rods 42 and 43 are activated by starting the motor 31.
It is designed to move up and down horizontally.

A base plate 45 is placed on the upper surface of a slider 44 mounted on both guide rods 42 and 43 so as to be movable in the longitudinal direction, and a support bracket 46 standing on the base plate 45 is provided with a support electrode 46 and the other electrode 47. A tip end of the spring is pivotally stopped, and a spring 48 is contracted between the rear end of the other electrode 47 and the base plate 45.

On the other hand, a motor 49 fixed to the bracket 40
The sprocket 50 is attached to the output shaft of the sprocket 50, the sprocket 51 is also pivotally fixed to the other bracket 41, both ends of the chain 52 wound between the sprocket 50 and 51 are connected to the slider 44, and the motor 49 is rotated forward and backward. On the other hand, the electrode 47 is horizontally reciprocated along the guide rods 42 and 43.

The other electrode 47 serves as a positive electrode, and is controlled by both motors 31 and 49 to perform vertical movement and horizontal movement. The other electrode 47 may have a structure in which it rolls by a roller.

As shown in FIGS. 1 to 3, the carriage 13 has a lower wheel 54 mounted thereon so as to move along rails 53, 53 installed on the floor surface, and a rack 55 provided between the rails 53, 53. By driving the pinion 56 that meshes with the motor 57 with the motor 57, the pinion 56 moves forward and backward with respect to the knitting machine 11.

As shown in FIGS. 1 and 2, the chuck mechanism 16 has a horizontal shaft 58, which is coaxial with the rotary drum 20, projecting from the rear side of the carriage 13 facing the knitting machine 11, and the shaft 5
A rectangular face plate 59 is rotatably attached to the tip of 8 and the end of the vertical stripe A penetrating the electrode ring 22 is held by a cylinder on the face of the face plate 59 facing the knitting machine 11, though not shown. The holding tools are arranged in the same number as that of the vertical stripes A in a rectangular shape equal to the quadrangle of the vertical stripes A.

The face plate 59 includes a motor 60 and a speed reducer 61.
The driving mechanism 62 consisting of is driven to rotate intermittently in the same direction as the rotary drum 20 at the same speed.

That is, the servo motor 26 for driving the rotary drum 20 and the motor 60 for driving the face plate 59 of the chuck mechanism 16 are interlocked so as to be electrically synchronized, and the rotary drum 20 and the chuck mechanism 16 are rotated by 90 °. Intermittent rotation will be performed.

As shown in FIG. 2, the spiral tension straightening machine 15 straightens the spiral muscle B by passing the spiral muscle B between a plurality of rollers 63, and pulls it out of the reel to form the longitudinal muscle A.
When it is sent to the outer circumference of the group, a constant tension is given, and the spiral muscle B that has passed through the corrective tensioner 15 is
The vertical stripe group A is supplied to the lower position on the outer circumference of the portion of the electrode ring 22 supported by the support frame 24, and is spirally wound by the rotation of the vertical stripe group A and the axial movement thereof.

The knitting apparatus of the present invention has the above-mentioned structure. Next, a method of knitting a polygonal reinforcing bar cage will be described.

As shown in FIGS. 1 and 2, in a state where the carriage 13 approaches the knitting machine 11 and stops, the tips of the vertical streaks A placed on the gutter member 12 are inserted into the guide pipe 25, In a state where the tip protruding from the insertion hole 23 to the front of the electrode ring 22 is grasped by the grasping tool of the chuck mechanism 16 and the tip of the spiral muscle B pulled out from the correction tensioner 15 is fixed to an appropriate longitudinal muscle, Rotating drum 20 and chuck mechanism 16 at the same time 90 °
And the carriage 13 is moved forward by a predetermined stroke.

When the rotary drum 20 and the chuck mechanism 16 are stopped, as shown by the solid line in FIG. 4, one side located below the group of vertical stripes A arranged horizontally is horizontal and the other electrode mechanism 14 is the other electrode 47. Is waiting at the lower left corner of FIG.

On the other hand, when the rotary drum 20 stops, the other electrode 47 is first rotated by the motor 31 and moved up by a height corresponding to the square diameter of the vertical stripe group A, and then by the motor 60 rotated by the guide rod 42. , 43 from the left end of FIG. 4 to the right side, and the other electrode 47 moves while being in pressure contact with the spiral muscle B supplied to one lower side of the vertical muscle A during the movement.

While the other electrode 47 moves while being pressed against the spiral muscle B, the intersection of the spiral muscle B and each longitudinal muscle A is sequentially welded by the electrode ring 22 which serves as one electrode.

The other electrode 47 is shown in FIG.
When it reaches the right end and stops, the intersection of the lower side of the vertical bar A group and the spiral bar B is electrically welded, the motor 31 reverses and the guide rods 42 and 43 return to the lowered position, and the other electrode 47 moves the vertical bar. After being separated from the group A, the motor 60 is reversely rotated and the other electrode 47 is moved to the left end in FIG. 4 along the guide rods 42 and 43, and is returned to the standby position to prepare for the next welding.

As described above, when the other electrode 47 returns to the standby position, the rotary drum 20 and the chuck mechanism 16 rotate 90 °, and at the same time, the carriage 13 moves forward by a certain stroke. As a result, the next side of the vertical stripe A group is positioned at the bottom and becomes horizontal, and the vertical stripe A group is pulled out to the electrode ring 22 by a certain length, and the spiral stripe B is spiral with respect to the lower side. When the rotary drum 20 is stopped, the other electrode 47 automatically moves upward, horizontally forward, downward, and horizontally backward from the standby position as described above. The intersection of the spiral bars B is welded, and the spiral bars B are welded to the entire length of the vertical bar group A in this manner to knit the rectangular reinforcing bar cage C as shown in FIG.

In the illustrated embodiment, the knitting of the rectangular rectangular rebar cage is shown, but any polygonal shape can be knitted as long as it is a polygon having a triangle shape or larger. In this case, the rotary drum 20 is used.
The intermittent rotation angle of the chuck mechanism 16 may be set according to the angle of one side of the polygon.

When the spiral bar B having a large diameter is used, it is desirable that the corners of the polygon can be surely bent. As one of the methods, when welding the vertical bar A and the spiral bar B by the other electrode 47,
At the time of welding the last longitudinal bar A and spiral bar B on one side, the other electrode 47
Is temporarily stopped and the heating time of the position corresponding to the bent portion of the spiral muscle B is lengthened to soften it, and the spiral muscle B wound by the rotation of the vertical muscle group A can be easily bent.

As another method, as shown in FIG.
On the other hand, at the end of the base plate 45 to which the other electrode 47 is attached, a right-angled pressing die 64 is attached to the corner portion of the vertical streak group A in the cylinder 6
5. A press machine 66 that moves up and down in 5 is installed, and after welding one side, the vertical bar group A is rotated by 45 ° so that the corner portion is located at the lowermost portion, and in this state, the other electrode mechanism 14 is stopped immediately below the corner portion. Then, the pressing die 64 is raised to form a right angle on the portion corresponding to the corner of the spiral muscle B, and then the pressing die 64 is lowered to return the other electrode mechanism 14 to the standby position, and then the vertical muscle group A remains. It is possible to adopt a press type in which 45 ° is rotated and welding of the next side is performed.

[0040]

As described above, according to the present invention, a large number of vertical streaks are arranged in a square shape, and the vertical streaks are intermittently rotated by an angle equal to one side of the square shape, and intermittently in the axial direction. It was moved and wound by supplying a spiral line to the outer circumference and welding the intersection of the spiral line and the vertical line on one side of the square, so that polygonal reinforcing bar cages can be automatically and continuously knitted. The polygonal rebar cage can be efficiently manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a reinforcing bar cage knitting machine according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the knitting machine of the above.

FIG. 4 is an enlarged front view of the other electrode mechanism.

FIG. 5 is a side view of the above.

FIG. 6 is a plan view of the above.

FIG. 7 is a vertical cross-sectional view showing a welded portion of a vertical bar and a spiral bar.

FIG. 8 is a perspective view of a braided square rebar cage.

FIG. 9 is an explanatory diagram showing an example of a spiral muscle typing method.

FIG. 10 is a perspective view showing a conventional method for manufacturing a rectangular rebar cage.

[Explanation of symbols]

 11 Knitting machine 13 Carriage 14 Other electrode mechanism 15 Straightening tensioner 16 Chuck mechanism 17 Base stand 18 Support plate 20 Rotating drum 21 Drive mechanism 22 Electrode ring 23 Insertion hole 24 Support frame 25 Induction pipe 26 Servo motor 30 Horizontal axis 31 Motor 42, 43 guide rod 47 other electrode 48 spring 49 motor 59 face plate 62 drive mechanism

Claims (1)

(57) [Claims] 1. A rotary drum arranged so as to be rotatable at a fixed position, and a plurality of vertical stripes provided on the rotary drum in a polygonal arrangement coaxial with the rotation axis of the drum in the longitudinal direction. An electrode ring that serves as one electrode that is movably supported on the rotary drum, a drive mechanism that causes the rotary drum to intermittently rotate at an angle equal to one side of a polygon of a vertical streak group, and a position in front of the rotary drum with respect to the drum. And a chuck mechanism that is rotatably attached to the trolley and that holds the tip of the vertical streak group that penetrates the electrode ring,
A driving mechanism provided on the carriage so as to intermittently rotate the chuck mechanism by an angle equal to one side of the polygon of the vertical line group, and a spiral line is supplied to the outer periphery of the vertical line group passing through the electrode ring,
A spiral muscle supply unit that spirally winds by the rotation and axial movement of the vertical muscle group, and is arranged at a position facing one side of the vertical muscle group that has stopped rotating at the winding portion of the spiral muscle, and when the vertical muscle group stops. It is composed of a vertical electrode on one side and the other electrode for welding the intersection of spirals, and electrically drives the drive mechanism of the rotary drum and the drive mechanism of the chuck mechanism so that the rotary drum and the chuck mechanism are intermittently rotated in synchronization with each other at an equal angle. Alternatively, mechanically interlocking, the other electrode can be freely moved toward and away from one side of the vertical muscle group to be stopped and can be moved in the length direction of the one side. A knitting device for polygonal rebar cages formed by welding the intersections of spirals.