JPH0787959B2 - Spiral product manufacturing equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing apparatus used for producing a spiral product by continuously bending a long continuous rod-shaped or linear material at predetermined intervals. Is.

2. Description of the Related Art Another iron rod or steel rod may be spirally wound at a predetermined pitch in the axial direction reinforcing bar embedded in a reinforced concrete column in building construction.

In the above-mentioned spiral-shaped reinforcing bar, so-called hoop reinforcing bar, conventionally, a bar or iron wire cut into a predetermined length is bent by a press or the like to form a hoop reinforcing bar for each pitch. Therefore, at the site, the end of the hoop reinforcement is welded or bound to form a continuous spiral hoop reinforcement, and the hoop reinforcement is wound around the axial reinforcing bar and then fixed by welding or binding. However, in this work, there are many welding or binding points, which not only lowers the strength, but also requires a lot of labor and has a drawback of high cost.

Therefore, a continuous spiral hoop muscle is desired, and an apparatus for producing this spiral product is disclosed in Japanese Patent Publication No. Sho 57-2412.

Problems to be Solved by the Invention By the way, in recent years, in order to improve the weldability of the hoop reinforcing bar to the reinforcing bar and the strength of reinforced concrete as described above, an attempt to use a rod-shaped or linear PC steel material for the hoop reinforcing bar has been made. ing.

However, the above-mentioned PC steel material has a higher tensile strength than the bar material or wire material normally used for hoop muscles and has a strong spring property, so it is difficult to perform bending forming in the conventional spiral product manufacturing apparatus, and the spiral of the PC steel material. An apparatus for efficiently manufacturing a shaped product has not been proposed for practical use.

Means for Solving the Problems The present invention has been made in view of the above problems, and is provided with a core bar having a bent R portion and a bent arm that horizontally reciprocates, and the bent R portion is provided. In contrast, a bending roller that is always separated by a diameter of a long rod-shaped or linear material or more, and a pressing plate that is disposed on the bending arm and that rotates the spiral work in synchronization with the material. A folding mechanism, a cutting mechanism integrally attached to the folding mechanism, a supply mechanism for supplying a material to the folding mechanism, and a vertically movable vertically movable core under the folding mechanism. The supporting mechanism having a supporting rod that stabilizes the shape of the intermediate product when the material is bent, the stopper mechanism that can stop the spiral work at a predetermined position when the material is bent by 90 degrees, and the stopper mechanism that can be moved up and down. Of the spiral work formed by the bending mechanism The stacker mechanism that descends in response to the increase in the height, the transfer mechanism that is attached to the stacker mechanism, moves the spiral work in the same direction in synchronization with the supply of the material by the supply mechanism, and the material of the supply mechanism. An apparatus for manufacturing a spiral product, comprising a guide mechanism capable of moving up and down to guide the movement of a spiral work by a supply and transfer mechanism.

Effect The manufacturing apparatus for a spiral product according to the present invention bends a long rod-shaped or linear material supplied from a supply mechanism along a bend R portion of a core metal by a bending roller in the bending mechanism. At this time, the spiral work (intermediate product) connected to the lower part of the bent portion is rotated by the pressing plate in synchronization with the bending operation, and the inner corner of the work is supported by the support rod of the support mechanism. At the end of the 90 ° bend, the stopper mechanism securely stops the workpiece at a predetermined position to prevent it from collapsing.
Then, the work is moved by the transfer mechanism attached to the stacker mechanism in synchronization with the supply of the material by the supply mechanism, and the posture during the movement is held by the guide mechanism. The stacker mechanism descends in synchronism with an increase in the height of the work so that the height of the work is always kept constant and the bending operation is always performed under the same condition.

When a predetermined spiral product is bent and formed, it can be immediately cut from a linear material by a cutting mechanism integrally attached to the bending mechanism.

Embodiment FIG. 1 to FIG. 31 show an embodiment of an apparatus for manufacturing a spiral product according to the present invention.

In the drawings, (A) is a material (S) supply mechanism, (B) is a folding mechanism, (C) is a cutting mechanism integrally attached to the folding mechanism (B), (D) is a stacker mechanism, and (E) ) Is a transfer mechanism attached to the stacker mechanism (D), (F) is a work support mechanism provided below the folding mechanism (B), (G) is a guide mechanism, and (H) is a stopper mechanism.

The supply mechanism (A) is for continuously supplying the material (S) such as a rod-shaped or linear PC steel material, which is a raw material of the spiral product, in the horizontal direction toward the folding mechanism (B). , A total of four rollers (1) (1), which clamp the material (S) at two locations in the horizontal direction from above and below, and a hydraulic motor (M ₁ ) which drives the rollers (1) (1). The material (S) is moved by the rotation of the rollers (1) (1).

The moving side of the material (S) in the supply mechanism (A) (first
A length measuring mechanism (I) for detecting the supply amount of the material (S) is arranged on the left side in the drawings and FIG. This length measuring mechanism (I) includes a pair of driven rollers (2) and (3) for sandwiching the work (W) from above and below, and a driven roller (2) having a small diameter on the upper side and a driven roller having a large diameter on the lower side. The air cylinder (4) for urging a predetermined pressure toward (3), and the rotary encoder (R ₁ ) for detecting the rotation amount of the driven roller (2) having a small diameter, are made of the material (S). The amount of movement is
The rotary encoder (R ₁ ) detects the rotation amount of the driven roller (2) having a small diameter, and stops the supply mechanism (A) when the supply amount reaches a predetermined value.

A guide pipe (5) is arranged in the material (S) supply path after the length measuring mechanism (I), and the material (S) is guided in the guide pipe (5) by the folding mechanism. (B)
Be transported to.

The bending mechanism (B) bends the material (S) conveyed from the supply mechanism (A) at a predetermined angle.
Holding member (7) for holding the bent base portion of the core and the core metal (8)
, And the bending arm (9) as main constituent members.

As shown in FIG. 3, the holding member (7) is arranged on the distal end side of the guide pipe (5), has a diameter slightly larger than that of the material (S), and is the same as the guide pipe (5). It has a through hole (10) with its axis aligned.

The core metal (8) is a through hole (10) of the holding member (7).
A linear through hole (11) which is fixed to the front end opening side (opening side on the left side in FIGS. 1 and 3) and is continuous with the through hole (10) of the holding member (7), The through hole (11) has a bent R portion (12) having a semicircular contour formed continuously from the inside to the outside of the cored bar (8).

The bending arm (9) is, as shown in FIGS. 1 and 2, a drive section (13) arranged above the core metal (8).
A folding roller (14) is provided at the base end side of the folding arm (9), and a work pressing plate (15) is provided at the tip end side of the folding arm (9). The drive part (13) of the bending arm (9) includes a hydraulic swing motor (M ₂ ),
The pivot shaft (16) connected to the hydraulic rocking motor (M ₂ ) and having the bending arm (9) fixed to the lower end, and the rocking motor (M ₂ )
And a rotary encoder (R ₂ ) for detecting the rotation amount of the swing motor (M ₂ ). The pivot axis (16), which is the rotation axis of the bending arm (9), has an extension line of the axis that passes through the center of the R portion (12) and is arbitrary on a straight line along the longitudinal direction of the holding member (7). Is arranged in the vertical direction so as to pass through the position (in this embodiment, the boundary position between the through hole (11) of the core metal (8) and the R portion (12)).

Therefore, the bending arm (9) is configured to swing horizontally above the cored bar (8).

The bending roller (14) rotatably arranged on the lower surface of the bending arm (9) on the base end side has the same V-shaped groove (not shown) formed on the outer peripheral portion as the above-mentioned supply path. The bending roller (14) is set at a height higher than that of the R portion (12) of the core metal (8) by the rotation of the bending arm (9). It is set to be more than the diameter of.

The work pressing plate (15) is a flat plate member having a substantially V-shaped cross section, and a shaft (19) (which is slidably provided at the distal end portion and the central portion of the bending arm (9) in the longitudinal direction. 19) is erected and fixed between the lower end side faces of the bending arm (9), and the surface of the bending arm (9) is positioned slightly behind the supply path of the work (W) when the bending arm (9) is on standby. The tip portion of 15) is brought close to the above supply path of the material (S).

The cutting mechanism (C) is for cutting a product (intermediate product) with a predetermined number of turns and then cutting this product from the material (S) to form a spiral product. As shown in FIG. B) is integrally formed. That is, the folding mechanism (C) includes a plate blade (20) disposed at the rear end side (right side in FIGS. 1 and 3) opening of the through hole (10) of the holding member (7). , Holding member (7) and guide pipe (5)
The cylindrical fixed blade (21) disposed between the guide pipe (5) and the holding member (7) in the horizontal direction.
And a hydraulic cylinder (not shown) that moves in a direction at right angles to. Then, the plate blade (20) is formed with a semicircular groove (20a) having substantially the same diameter as the through hole (10) of the holding member (7), and the plate blade (20) has the fixed blade (21). ) Is arranged so as to be in sliding contact with or close to the end face. Therefore, the cutting mechanism (C) includes the blade plate (20).
And a fixed blade (21), which is a constraint cutting mechanism, and the material (S) is provided between the semicircular groove (20a) of the plate blade (20) and the inner peripheral edge of the fixed blade (21). Disconnect.

The stacker mechanism (D) is for supporting the upper end of the work (W) that is folded and manufactured by the folding mechanism (B) so that the work (W) always has a constant height. A table (23) and an elevating mechanism (24) are arranged horizontally below B).

The table (23) is supported on the base (22) of the device by the links (25) mounted on all sides so as to be vertically movable, and the link (25) has two levers (2).
6) is an X-shaped link that is swingably connected at the center. The sliding ends of the link (25) on the base (22) side are connected to each other by shafts (27) that face each other and extend in the width direction of the base (22).

The lifting mechanism (24) includes a speed reducer (28) connected to a hydraulic motor (M ₃ ), a lead screw (29) arranged in the longitudinal direction of the base (22), the speed reducer (28) and the lead screw. (29) Chain transmission mechanism (3)
0), which is fixed to the central portion of each shaft (27) and is composed of a nut (31) screwed to the lead screw (29). The speed reducer (28) is provided by the hydraulic motor (M ₃ ).
Lead screw (29) through chain transmission mechanism (30)
Is rotated and the nut (31) screwed with the lead screw (29) is moved to move the sliding end of the link (25), and the crossing angle of each lever (26) of the link (25) is changed. By changing it, the table (23) is raised and lowered while maintaining the horizontal state.

The stacker mechanism (D) is provided with a detection mechanism (32) for detecting the amount of elevation of the table (23). The detection mechanism (32) is for determining the descending amount of the table (23) in response to an increase in the height of the work (W),
The frame (33) and the frame (33) are arranged on the left rear side of the base (22) and are erected on the base (22).
Vertically supported by a lead screw (3
4), fixed to the frame (33) while being fixed to the table (23) and being connected to the nut (35) screwed to the lead screw (34) and the lead screw (34), It is composed of a rotary encoder (R ₃ ) that detects the amount of elevation of (23) as the amount of rotation of the lead screw (34).

The transfer mechanism (E) prevents the work (W) from deforming or becoming entangled by moving the work (W) on the table (23) in synchronization with the supply speed of the material (S). , A dolly (3) accommodated in the table (23)
6), two shafts (37) erected on the bogie (36), a push plate (38) fixed to the shaft (37), the bogie (36)
Drive mechanism (39).

The carriage (36) is provided with a predetermined number of rollers (41) on both sides, and the rolling of the rollers (41) causes the table (2) to move.
3) It is possible to move inside by a predetermined stroke in the longitudinal direction.

The shaft (37) has two slit holes (42) formed in the table (23) in parallel with each other in the longitudinal direction.
From above to the table (23), and the two shafts (37) are parallel to each other.

The push plate (38) is vertically installed and fixed between the tips of arms (43) horizontally arranged on the upper ends of the shafts (37).

The drive mechanism (39) of the carriage (36) includes a hydraulic motor (M ₄ ) arranged on the lower surface of the table (23), a speed reducer (44) connected to the hydraulic motor (M ₄ ), and a table (23). A belt (4) stretched between rollers (45) arranged at both ends in the longitudinal direction.
6) and a belt transmission mechanism (47) arranged between the speed reducer (44) and the belt (46) for driving the belt (46). And the carriage (36) is moved in the left-right direction by reciprocating the belt (46). The amount of movement of the carriage (36) is transferred to the roller (45) by the roller (45).
A rotary encoder (R ₄ ) that detects the amount of rotation is attached.

The support mechanism (F) holds the inner corner of the work (W) which is an intermediate product when the material (S) is bent to prevent the work (W) from being deformed by centrifugal force. A support rod (4) vertically movably provided vertically below the center point of the core metal (8) through a base block (48).
9), an air cylinder (51) for vertically moving the support rod (49) via a link (50), and the support rod (49) for each of the base blocks (48) in the R portion (12). It is composed of an air cylinder (52) for horizontally moving from the center position to the front side. The support rod (49) is
The table (23) is made to project from the notch or through hole (not shown) formed on the table (23) to the upper surface of the table (23).

The guide mechanism (G) is arranged on the inner side of the core metal (8) of the folding mechanism (B) and at a position where it does not interfere with the rotating operation of the folding arm (9), and the material (S ), A cylindrical guide plate (53) in contact with the supply path, and this guide plate (5
The air cylinder (54) for retracting 3) downward, and when the material (S) and the work (W) which is an intermediate product are transferred, it is wound around the folding mechanism (B). To prevent such obstacles. The guide plate (5
Similarly to the support rod (49), 3) also projects from the notch formed in the table (23) or a through hole (not shown) to the upper surface of the table (23).

The stopper mechanism (H) is for stopping the work (W) at a predetermined position when the material (S) is bent, and is attached to the main frame (55) standing on the rear part of the base (22). Has been.

In the stopper mechanism (H), two guide rods (56) that are parallel to each other are slidably arranged in the main frame (55) in a vertical direction, and the sub mechanism is provided between the lower ends of the guide rods (56). The frame (57) is horizontally installed and fixed, and the arm (5
A stopper plate (59) arranged vertically at the tip of (8) is swingably supported, and a shock arbor sover (6) is provided between the left side of the front surface of the sub-frame (57) and the stopper plate (59).
0) and an air cylinder (61) for raising the sub-frame (57) along the guide rod (56) in the main frame (55). 59) is arranged at a position along the supply path of the material (S) or in parallel with this and further on the back side. The air cylinder (61) functions only when the sub-frame (57) is raised, and in other cases, the sub-frame (57) can be lowered by its own weight in a free state.

The manufacturing procedure of the spiral product by the manufacturing apparatus having the above configuration will be described below. In the initial state, the folding arm (9) of the folding mechanism (B) is in a standby state in which the folding roller (14) is brought close to the material (S) conveyance path, and the work pressing plate is The lower end of (15) is brought into contact with the table (23) of the stacker mechanism (D), the table (23) of the stacker mechanism (D) is at the highest position, and the push plate (38) of the transfer mechanism (E) is ) Is retracted to the right side in FIG. 1, and the support rod (49) of the support mechanism (F) has risen to just below the core metal (8) of the bending mechanism (B), and the guide plate ( 53) is the material (S)
, And the stopper plate (59) of the stopper mechanism (H) is at the lowest position.

First, as shown in FIG. 4, the material (W) is supplied to the supply mechanism (A).
And the work (W) is detected by the length-measuring mechanism (I) to be transferred for a predetermined length capable of forming a hook portion at the tip, the supply mechanism (A) is temporarily stopped.

Next, as shown in FIG. 5, the folding mechanism (B) is operated,
The bending motor (M ₂ ) rotates the bending arm (9) by a predetermined angle, and the rotation of the bending arm (9) causes the material (S) to be pressed by the bending roller (14). , The hook forming angle along the R portion (12) of the core metal (8), for example, 13
Bend at 5 °.

At this time, the folding roller (14) is connected to the core metal (8).
The material (S) projecting tangentially from the R portion (12) is always pressed in the bending direction to bend the material (S). That is, the portion of the material (S) that is pressed by the folding roller (14) of the material (S) against the contact point with the R portion (12) in the bending process is separated by a predetermined distance in the tangential direction. Therefore, even if the material (S) has a high spring property and high rigidity such as PC steel material due to the lever principle, the reaction force against the bending roller (14) is small and the material (S) can be efficiently bent.

Next, as shown in FIG. 6, after rotating the swinging motor (M ₂ ) in the reverse direction and returning the folding arm (9) to the original position,
The supply mechanism (A) is operated again, and the material (S) is supplied by a length that allows one side of the work (W) to be formed.

Next, as shown in FIG. 7, the bending mechanism (B) is actuated, the bending arm (9) is rotated, and the material (S) is mixed with the R of the core metal (8) as described above. By pressing the folding roller (14) along the portion (12), the spiral product (P)
Bend at an angle corresponding to the corner (90 ° because it is a rectangular spiral product here). Then, the folding arm (9) is returned to the original position.

Next, as shown in FIGS. 8 to 11, the material (S) is supplied in a predetermined amount as described above, the bending arm (9) is rotated, and the bending roller (14) is used to The material (S) is bent along the R portion (12) of the cored bar (8).

Next, as shown in FIG. 12, the support rod (4) of the support mechanism (F)
9) is moved horizontally by the air cylinder (52) so as not to interfere with the hook part of the work (W). Then, the work (W) is supplied by the supply mechanism (A) to a predetermined length, and the work (W) is supplied to the hydraulic motor (M ₄ ) of the transfer mechanism (E) in synchronization with the supply operation of the material (S). Is operated to push and push the pushing plate (38) toward the left direction in the figure, that is, the feeding direction of the material (S).

At this time, the position of the material (S) and the work (W) protruding from the core metal (8) is regulated by the guide plate (53) of the guide mechanism (G) provided near the core metal (8). Transfer the material (S) reliably along the supply direction without colliding with the side of the work pressing plate (15) of the bending mechanism (B) or entanglement of the hook of the work (W). To be done.

Then, when the supply of the material (S) and the conveyance of the work (W) are completed, the air cylinder (52) is operated to support the support rod (4
Reposition 9) below the cored bar (8) and
Operate the hydraulic motor (M ₄ ) to retract the push plate (38) to its original position.

Next, as shown in FIG. 13, the bending arm (9) is rotated and the material is bent 90 ° along the R portion (12) of the cored bar (8) in the same manner as described above. A work (W) which is a product is formed.

Here, when the material (S) is bent by the rotation of the bending arm (9), a centrifugal force acts on the work (W) manufactured up to the previous step, and tends to come apart. Since the support rod (49) of the support mechanism (F) is located at the corner of the work (W), the work (W) bends the material (S) with the support rod (49) as a fulcrum. It rotates in the direction and prevents it from jumping out. At the end of bending of the material (S), even if the bending arm (9) is stopped from rotating, the work (W) below the bending point tends to rotate further due to inertia. However, the work (W) collides with the stopper plate (59) of the stopper mechanism (H), and this shock is absorbed by the shock absorber (60), whereby it is forcibly stopped at a predetermined position.

The work (W) for one turn hangs downward from the core metal (8) by its own weight and is located on the table (23) of the stacker mechanism (D). Every time the work (W) increases by one turn, it is lowered by driving the hydraulic motor (M ₃ ) by the diameter of the material (S). Further, as the table (23) descends, the work pressing plate (15) of the bending mechanism (B) and the stopper mechanism (H)
The stopper plate (59) follows the table (23) by its own weight and descends by the same amount.

In the following, the work (W) is the second turn bending work.

First, as shown in FIG. 14, while the bending arm (9) is returned to the original position, the supply mechanism (A) supplies a predetermined amount of the material (S) and synchronizes with it. The work (W) for one turn is moved by the push plate (38) of the transfer mechanism (E). At this time, similarly to the above, the material (S) and the work (W) for one turn are positionally regulated by the guide plate (53) of the guide mechanism (G) and are reliably transported along the material (S) supply direction. , The guide plate (5
3) functions similarly below.

Next, as shown in FIG. 15, the bending arm (9) is rotated, and the material (S) is moved by 90 ° along the R portion (12) of the core metal (8) by the bending roller (14). Fold. At this time,
Work (W) located below the material (S) in the bending process
Is pressed on one side by the work pressing plate (15) located on the tip side of the bending arm (9) and rotates in synchronization with the bending side of the material (S) without losing its shape. Then, the work (W) is rotated by the bending arm (19) while being supported at the corners by the support rods (49) of the support mechanism (F) as described above, and is rotated by a predetermined angle, that is, 90 °. At that time, the stopper plate (59) of the stopper mechanism (H) reliably stops at a predetermined position.

Next, as shown in FIGS. 16 to 19, the material (S) is further bent at two places as described above, and then the material (S) is supplied in a predetermined amount as shown in FIG. When the (W) is transferred by the push plate (38), the supporting rod (49) is used.
Similarly to FIG. 12, the air cylinder (52) is operated and moved in the horizontal direction so as not to interfere with the hook portion at the tip of the work (W). And the above-mentioned supply mechanism (A)
After the supply of the material (S) by the predetermined length and the movement of the work (W) by the transfer mechanism (E) are completed, the support rod (49) is returned to the original position, and then the material is processed as described above. By bending, a work (W) for two turns is formed.

After that, the work (W) having a desired number of turns is bent and formed by repeating the above operation. Here, the table (23) of the stacker mechanism (D) is lowered by the diameter of the material (S) as the number of turns of the work (W) increases, whereby the work (W) is densely packed. It is bent and formed.

When the work (W) reaches the desired number of turns,
As shown in FIG. 21, the guide plate (53) of the guide mechanism (G) and the air cylinder (54) are used to retract downward, and the stopper plate (59) of the stopper mechanism (H) is retracted to the upper position by the air cylinder (61). In this state, the bending arm (9) is rotated by a predetermined angle, and the material (S) is bent at the hook portion forming angle described above to form the hook portion on the terminal side.

Next, as shown in FIG. 22, the support rod (49) is retracted into the base block (48) by the operation of the air cylinder (51), and then the hydraulic cylinder of the cutting mechanism (C) is operated. , The holding member (7) and the cored bar (8) are moved horizontally with respect to the fixed blade (21). Then, the material (S) has a plate blade (20) attached to the holding member (7) and a fixed blade (21).
Is cut between and.

With the above operation, a spiral product (P) having hooks formed at both ends as shown in FIG. 23 and having a predetermined number of turns is obtained. After taking out the spiral product (P) from the table (23), The spiral products (P) may be sequentially manufactured by repeating the operation.

According to the device of the present invention, in addition to the spiral product (P) as described above, spiral products (P) having different hook forming positions as shown in FIG. 24 are shown in FIGS. 25 to 27. A one-turn spiral product (P) as shown in FIGS. 28 to 31 and a product with less than one turn having hook portions at both ends can be easily manufactured. When manufacturing a product having one turn or less as shown in the figure, it is not necessary to operate the stacker mechanism (D), the transfer mechanism (E), the support mechanism (F), and the stopper mechanism (H).

EFFECTS OF THE INVENTION As described above, according to the spiral product manufacturing apparatus of the present invention, even a material having a large tensile strength and high elasticity, such as PC steel material, which is impossible with the conventional apparatus, can be easily bent. Can produce spiral products efficiently,
Moreover, the spiral product is
The shape of the spiral product is prevented from being collapsed and the product is always in a good shape. When the spiral product is taken out, the cutting mechanism integrated with the folding mechanism can immediately cut the material from the material, which provides good workability.

Further, in the spiral product manufacturing apparatus according to the present invention, since the hook portions can be bent and formed at both ends at the same time when the spiral product is manufactured, workability and work efficiency are also improved in this respect.

Therefore, by using a high-rigidity spiral product such as a PC steel material manufactured by the manufacturing apparatus for a spiral product according to the present invention as a hoop bar for reinforced concrete, suitable for high-rise buildings in recent years, the rigidity is high and the reinforced concrete is lightweight. Can be obtained.

[Brief description of drawings]

1 to 31 show one embodiment of the manufacturing apparatus for spiral products according to the present invention. FIG. 1 is a plan view of the manufacturing apparatus, FIG. 2 is a front view, and FIG. 3 is a main part. Enlarged schematic diagram of
4 to 22 are schematic diagrams for explaining the operation procedure of the manufacturing apparatus, and FIGS. 23 to 31 are schematic diagrams showing examples of products manufactured by the apparatus of the present invention. (A) ... Supply mechanism, (B) ... Bending mechanism, (C) ... Cutting mechanism, (D) ... Stacker mechanism, (E) ... Transfer mechanism, (F) ... Support mechanism, ( G) ... Guide mechanism, (H) ... Stopper mechanism, (S) ... Material, (W) ... Work (intermediate product), (P) ... Spiral product (finished product), (8). Core bar, (9) …… Bending arm, (12) …… Bending R part, (14) …… Bending roller, (15) …… Pressing plate, (49) …… Support rod.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Manabu Hagino 16-4 Sakonyama, Asahi-ku, Yokohama, Kanagawa Prefecture 1-20-406 Sakonyama Complex (56) References JP-A-53-30461 (JP, A)

Claims (1)

[Claims] 1. A cored bar having a bent R portion, which is disposed on a bent arm that horizontally reciprocates, and is always separated from the bent R portion by at least a diameter of a long rod-shaped or linear material. And a folding mechanism including a pressing roller disposed on the folding arm for rotating the spiral work in synchronization with the material, and a cutting mechanism integrally attached to the folding mechanism. A supply mechanism for supplying a material to the bending mechanism, and a support rod vertically installed below the core metal of the bending mechanism so as to be movable horizontally and vertically, and which stabilizes the shape of the work when bending the material. The supporting mechanism, a stopper mechanism that can lift and lower the spiral work at a predetermined position for each 90 ° bending of the material, and an increase in the height of the spiral work formed by the bending mechanism. And the stacker mechanism A transfer mechanism that is attached to the cover mechanism and moves the spiral work in the same direction in synchronization with the supply of the material by the supply mechanism, and guides the material supply by the supply mechanism and the movement of the spiral work by the transfer mechanism. An apparatus for manufacturing a spiral product, comprising a guide mechanism capable of moving up and down.