JPH089080B2 - Spiral product manufacturing equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a manufacturing apparatus used for manufacturing a spiral product by continuously bending a long continuous rod-shaped or linear material at predetermined intervals, More specifically, the present invention relates to a manufacturing apparatus provided with a mechanism that facilitates the supply of the above materials and prevents the spiral product from deforming.

2. Description of the Related Art In some cases, another iron rod or steel rod may be spirally wound at a predetermined pitch on an axial reinforcing rod embedded in a reinforced concrete column in a building construction.

The above-mentioned spiral reinforcing bar, so-called hoop reinforcing bar, has been conventionally manufactured by bending a steel bar or the like cut into a predetermined length with a press or the like at every pitch. Therefore, at the construction site, the end portions of the hoop reinforcement are welded or bundled to form a continuous spiral hoop reinforcement, and the hoop reinforcement is wound around the axial reinforcing bar and then welded or bundled and fixed. However, the work using such hoop muscles has many drawbacks such as many welding or binding points, which not only lowers the strength but also requires a lot of labor and cost. Therefore, a continuous spiral hoop muscle is desired, and a device for producing this spiral product is disclosed in JP-B-57-2412, and hereinafter, this device will be referred to FIGS. 34 to 40. While explaining.

In the drawings, (1) shows an upper frame, (2) shows a feeding mechanism, (3) shows a bending mechanism, and (4) shows a table.

The feed mechanism (2) is for moving the long rod-shaped body (S) toward the bending mechanism (3) in the longitudinal direction thereof, and includes the fixed drive roller (5) and the fixed drive roller (5). 5)
A rod-shaped body (S) composed of a free-running roller (6) urged toward the roller and pinched between the rollers (5) and (6) is driven by a fixed drive roller (5). .

The bending mechanism (3) has an upper frame (1) so as to come into contact with the inner surface of the bent portion of the long rod-shaped body (S) that has stopped being transferred.
A member for vertically bending fulcrum (hereinafter referred to as a fulcrum member) (7) provided between the fulcrum member and the table (4), which is coaxially fitted onto the fulcrum member (7) and is also an air cylinder (8). The cylindrical body (13) rotatable in an appropriate angle range via the substantially V-shaped link arm (9), the chain (10), the spring (11) and the sprocket (12) by the expansion and contraction of the rod, and the rod-shaped body (S). ) Attached to the lower end of the tubular body (13) in a flat state so that it can contact the outer surface of the bent portion, and the tubular body (13)
The force point member (14) in a vertical posture in which the fulcrum member (7) is rotated about the fulcrum member (7) in an appropriate angular range (normally 90 ° range) horizontally or substantially horizontally in the forward and reverse directions, and the force point. It is composed of an auxiliary pressing member (15) in a vertical posture that presses the central portion in the length direction of the rod-shaped body portion (Sa) as the working member (14) rotates in the positive direction.

The table (4) is bent by the bending mechanism (3), and a carriage (16) for mounting a processed product (W ') positioned spirally around the fulcrum member (7) and the feed are provided. The dolly (16) is processed into a product (W ') at the time of feeding in a new bending rod portion (unbent rod portion) (Sb) by the mechanism (2) and bending the rod (S). ) Along with the long rod-shaped body (S) in the horizontal or substantially horizontal direction along the conveying direction to move the table (4) and the spirally processed product (W ′).
And a mechanism (17) for reducing friction between the endless chain (18) and the sprocket (19),
It is composed of a motor (20).

Then, the spiral product is manufactured by the above manufacturing apparatus as follows.

As shown in FIGS. 37 and 38, the feeding mechanism (2) transfers the rod-shaped body (S) until the bent end of the rod-shaped body (S) contacts the stopper piece (21), and The rod-shaped body (S) is mounted on the carriage (16) on which the spiral processed product (W ') is placed under the rod-shaped body (S).
Move in the same direction in synchronization with the transfer of.

Then, as shown in FIG. 39 and FIG. 40, the tubular body (13) is rotated counterclockwise by the operation of the air cylinder (8), and the force point member (14) becomes the fulcrum member (7). The rod-shaped body portion (Sa) to be processed is rotatably moved around the fulcrum member (7) while the rod-shaped body portion (Sa) to be processed is pinched. (7)
Bend into a shape that follows.

At this time, the cart (16) for mounting and supporting the spiral processed product (W ') connected to the lower side of the rod-shaped body (S) along with the bending of the rod-shaped body to be processed (Sa) is provided with the rod-shaped body. By moving the body (S) in the direction opposite to the supply direction, the resistance from the processed product (W ') that rotates in synchronization with the bending of the rod-shaped body (S) is reduced, and the bending is performed before and after the bending. The position of the processed product (W ') on the dolly (16) after the bending is kept constant.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above manufacturing apparatus, when the rod-shaped body is moved in the longitudinal direction for the next bending operation after one bending operation of the rod-shaped body is completed, In order to reduce the load on the feeding operation of the rod-shaped body by moving the spiral product connected to the above-mentioned spiral-shaped body in synchronization with the movement of the rod-shaped body, the cart is moved to the right in the figure when bending the rod-shaped body. By moving the spiral product, the resultant force of the bending device for the rod-shaped body and the inertial force in the moving direction of the trolley act to cause the spiral product to lose its shape. Further, in the above manufacturing apparatus, since the spiral product is mounted on the trolley that reciprocates on the product cradle and is moved by the trolley, the product cradle including the trolley becomes large. Further, the trolley requires a strong structure for stably mounting and supporting the product, and therefore the manufacturing apparatus itself tends to be large. Further, in the above structure, when the product becomes large, the product cannot be stably placed and supported unless the truck is made large.

In addition, conventionally, a roller conveyor method was used as the method for moving the bent spiral work when supplying the material, and a method for bending upward around the horizontal axis was adopted as the material bending method. What was done is JP-A-53-3046.
Although it is known in Japanese Patent Publication No. 1, in the roller conveyor system, there is uneven feeding due to slip, there is no guarantee that it can be transferred in the same moving state as the material, and deformation and distortion of the spiral work cannot be prevented. . Moreover, it is not possible to prevent the material feeding load from increasing and unnecessary force acting on the material and the spiral work.

Further, when a method of bending upward about a horizontal axis is adopted as a material bending method, the weight of the work cannot be used for feeding the work in the spiral axis direction, and the spiral pitch becomes uneven.

Means for Solving the Problems The present invention has been made in view of the above problems, in which a long continuous rod-shaped or linear material is intermittently supplied to a folding mechanism along the longitudinal direction, and the folding is performed. In a device for producing a spiral product by horizontally bending a material around a vertical axis at a predetermined interval by a bending mechanism, the device is located below the bending mechanism,
A table that supports a spiral work that extends downward from the material and that lowers a fixed amount each time the bending operation of one turn by the bending mechanism is completed, and a table that is built in the table and that feeds the material in the direction described above. A transfer mechanism including a trolley that moves in synchronization with the material and a push plate that is connected to the trolley and that is located on a table and that pushes the spiral work by the movement of the trolley. It is what

Effect The present invention employs a method of moving a bent spiral work when supplying a material, by using a method of moving by a pressing plate, and therefore, there is no unevenness in feeding due to slip unlike the roller conveyor method, and it is the same as the material. In the moving state, it is possible to easily and surely move synchronously, and thereby, it is possible to surely prevent the bent spiral work from being distorted or deformed. Further, it is possible to reduce the load on the material feeding operation, and it is possible to prevent unnecessary force from acting on the material and the spiral work.

Further, the present invention adopts a method of bending the material in the horizontal direction around the vertical axis as a method of bending the material.
It is only necessary to lower the table by a fixed amount each time the bending operation for one turn is completed, and the gravity of the work itself can be used to feed the work in the spiral axis direction, which facilitates the setting of the spiral pitch.

Embodiment FIG. 1 to FIG. 33 show an embodiment of the spiral product manufacturing apparatus according to the present invention.

In the drawings, (A) is a bending mechanism for a rod-shaped or linear material (S) that is intermittently supplied from a supply mechanism (B),
(C) is a cutting mechanism integrally attached to the folding mechanism (A), (D) is a stacker mechanism, (E) is a transfer mechanism attached to the stacker mechanism (D), and (F) is the folding mechanism. The work support mechanism disposed below the mechanism (A), (G) a guide mechanism, and (H) a stopper mechanism.

The folding mechanism (A) is arranged on a frame (31) standing upright on the left rear side of the base (30) of the manufacturing apparatus, and a holding member (32) for holding the bending base of the material (S). ), A cored bar (33) arranged on the holding member (32), and a bending arm (34) for pressing the material (S) against the cored bar (33).

The holding member (32) is horizontally arranged in a suspended state on the frame (31) and has a through hole (35) having a diameter larger than that of the material (S) as shown in FIG. ing.

As shown in FIG. 6, the core metal (33) is fixed to the tip opening side (left side in the figure) of the through hole (35) of the holding member (32), and the through hole (35). And a bent R portion (37) having a semicircular contour formed continuously from the opening to the outer surface of the core metal (33).

As shown in FIGS. 1 and 2, the bending arm (34) is given a predetermined reciprocating rotation in the horizontal direction by a drive section (38) arranged above the frame (31). The bending roller (39) is arranged at the base end side of the bending arm (34), and the work pressing plate (40) is arranged at the tip end side. The drive section (38) includes a hydraulic swing motor (M ₁ ) and a pivot shaft (41) connected to the hydraulic swing motor (M ₁ ) and extending in the vertical direction, and the bending arm (34). Is integrally connected to the lower end of the pivot shaft (41) at the base end. The pivot shaft (41), which is the pivot shaft of the bending arm (34), has its lower end located directly above the cored bar (33), and the axis line extending in the vertical direction is the through hole (35) and R It is set to pass through the boundary of the section (37). Therefore, the bending arm (34) is configured to horizontally rotate right above the cored bar (33) about the pivot axis (41). Further, a rotary encoder (R ₁ ) is connected to the hydraulic swing motor (M ₁ ) for controlling the rotation angle of the bending arm (34) in the drive section (38). The operation amount and operation state of the hydraulic swing motor (M ₁ ) are controlled by the signal of the encoder (R ₁ ).

The folding roller (39) is horizontally rotatably supported on the lower surface of the folding arm (34) at the base end side, and the folding roller (39) is located at a height position on the outer periphery. V formed on
A groove (not shown) is set to be at the same height as the through hole (35) of the holding member (32), and the position of the folding roller (39) from the pivot axis (41) is set. During rotation of the folding arm (34), the folding roller (39)
At least material (S) from the R portion (37) of the core metal (33)
It is set to be separated by more than the diameter of.

The work pressing plate (40) is a flat plate-shaped member having a substantially V-shaped cross section, and has two shafts (42) slidably provided at the distal end and the center of the bending arm (34). It is erected and fixed between the lower side surfaces of the.

The supply mechanism (B) continuously supplies a material (S) such as a PC steel material, which is a raw material for a spiral product, in the horizontal direction toward the folding mechanism (A). B) is composed of a hydraulic motor (M ₂ ) that drives a total of four rollers (43) that pinch the material (S) from above and below at two horizontal positions via a speed reducer (44). The material (S) is moved by rotationally driving the roller (43).

On the supply side (the left side in FIGS. 1 and 2) of the material (S) in the supply mechanism (B), the supply amount of the material (S) is detected and the supply device (B) is stopped appropriately. A long mechanism (I) is provided. The above measuring mechanism (I)
Is a pair of driven rollers (45) (4) arranged on the material (S) supply path and pressing the material (S) from above and below.
6) and a rotary encoder (R ₂ ) for detecting the rotation amount of the driven roller (45) having a small diameter on the upper side, and the supply length of the material (S) is set as the rotation amount of the driven roller (45). It is being detected.

The supply path of the material (S) after the measuring mechanism (I) passes through a guide pipe (47) arranged horizontally between the bending mechanism (A) and the guide pipe (47). )
Is the through hole (3) of the holding member (32) of the folding mechanism (A).
It is located on the same axis as 5) and is continuous with the through hole (35).

The cutting mechanism (C) is for separating this product from the material (S) after the spiral product having a predetermined number of turns is manufactured, and is formed integrally with the folding mechanism (A). That is, as shown in FIG. 6, the cutting mechanism (C) is a plate blade (48) arranged at the rear end side (right side in the figure) opening of the through hole (35) of the holding member (32). And the cylindrical fixed blade (49) arranged between the holding member (32) and the guide pipe (47) and the holding member (32) in the horizontal direction and on the guide pipe (47). It is composed of a hydraulic cylinder (not shown) that moves in a direction perpendicular to the hydraulic cylinder. Then, the plate blade (48) is formed with a semicircular groove (not shown) having substantially the same diameter as the through hole (35) of the holding member (32).
8) is arranged so as to be in sliding contact with or close to the end face of the fixed blade (49). Therefore, the cutting mechanism (C) is
A constraining cutting mechanism is constituted by the plate blade (48) and the fixed blade (49), and the material is provided between the semicircular groove of the plate blade (48) and the inner peripheral edge of the fixed blade (49). (S) is cut.

The stacker mechanism (D) supports the upper part of the spiral work (intermediate product) (W) that is folded and manufactured by the folding mechanism (A) so that it is always at a constant height position. And below the folding mechanism (A),
It is composed of a horizontally arranged table (50) and a lifting mechanism (51).

The table (50) is lifted up and down horizontally from four sides on the base (30) of the manufacturing apparatus by an X-shaped link (52) formed by connecting two levers to each other so that they can swing together. The sliding ends on the base (30) side of the above-mentioned link (52) are supported by each other.
Are connected by a shaft (53) extending in the width direction.

The lifting mechanism (51) is arranged in the longitudinal direction of the hydraulic motor (M ₃ ) and the base (30) arranged on the right rear side of the base (30), and by the hydraulic motor (M ₃ ), A lead screw (56) that is rotationally driven via a speed reducer (54), a chain transmission mechanism (55), and a nut (fixed to the center of each shaft (53) and screwed with the lead screw (56). 57) and the lead screw (5
By rotating 6), the nut (54) is moved to move the sliding end of each link (52), and each link (52) is moved.
The table (50) is moved up and down by changing the crossing angle of each lever.

The stacker mechanism (D) is further provided with a mechanism (58) for detecting the amount of elevation of the table (50). The detection mechanism (58) uses a lead screw and a nut, and a rotary encoder, and monitors the descending amount of the table (50) corresponding to the increase in the height of the work (W).

The transfer mechanism (E) moves the work (W) on the table (50) in synchronism with the supply speed of the material (S) to prevent the work (W) from deforming or becoming entangled. Trucks (59) and trucks (5) housed in the table (50)
9) A flat work pushing plate (61) arranged via two shafts (60) standing upright, and the dolly (5).
9) The drive mechanism (62).

The dolly (59) has rollers (63) that rotate vertically on both sides.
And a roller (64) that horizontally rotates with the roller (63) (64) in the table (50) in the longitudinal direction.
The carriage (59) is accommodated in the table (50) so as to be able to reciprocate for a predetermined stroke in a stable posture by being supported by guide rails (65) arranged parallel to each other and facing each other.

The shaft (60) is erected parallel to each other on the front edge side (the left side in FIG. 3) of the carriage (59) in the traveling direction, and the upper portion of the shaft (60) is located above the table (50).
On the upper surface of the table, two slit grooves (66) projecting parallel to each other along the longitudinal direction are projected onto the table (50). On the upper end of the shaft (60), the pushing plate (61) is vertically installed and fixed between the tips of horizontally arranged arms (67).

A thin plate member (61a) made of synthetic resin such as nylon is spread on the surface of the push plate (61) to prevent collision and impact force between the push plate (61) and the work (W). The work (W) is prevented from being scratched while being reduced.

The drive mechanism (62) is a hydraulic motor (M ₄ ) arranged on the lower left side of the table (50) in FIG. 1 or 2.
And a belt transmission mechanism (68) arranged along the longitudinal direction at the center of the table (50), and for transmitting the power of the hydraulic motor (M ₄ ) to the belt transmission mechanism (68). It is composed of a speed reducer (69) and another belt or chain transmission mechanism (70).
The belt (71) of 8) is connected to the carriage (59).
That is, when the hydraulic motor (M ₄ ) is operated, the driving force is transmitted to the belt transmission mechanism (68) via the speed reducer (69) and the transmission mechanism (70), and the belt transmission mechanism (68) By the reciprocating drive of the belt (71), the carriage (59) is configured to reciprocate in the right and left directions within a predetermined range along the guide rail (65). Therefore, the push plate (61)
By the movement of the carriage (59), the carriage moves on the table (50) while maintaining a vertical state with respect to the table (50).

The transfer mechanism (E) has a rotary encoder (R ₄ ) attached to the belt transmission mechanism (68) for detecting and controlling the movement amount and position of the push plate (61). An encoder (R ₄ ) detects the movement amount and position of the push plate (61) as the rotation amount and rotation position of the roller or pulley of the belt transmission mechanism (68).

When the material (S) is bent, the support mechanism (F)
It is for supporting the inner corners of the work (W) connected to the lower side of the material (S) to prevent the work (W) from losing its shape due to centrifugal force, and the R part of the core metal (33). (37)
A support rod (73) vertically hung through a base block (72) vertically below the center point of the, and the support rod (73).
The air cylinder (7
5) and the support rod (73) to the base block (72)
And an air cylinder (76) for horizontally moving from the center position of the R portion (37) toward the front.

The guide mechanism (G) is disposed on the inner side of the core metal (33) of the folding mechanism (A) so as not to interfere with the rotating operation of the folding arm (34) and is made of the material (S). Curved guide plate (77) close to the supply path of this, and this guide plate (77)
And an air cylinder (78) that retracts the
When the material (S) and the work (W) are transferred, the guide plate (77) prevents obstacles such as the work (W) being caught in the folding mechanism (A).

The stopper mechanism (H) stops the work (W) at a predetermined position when the material (S) is bent, and is attached to a main frame (79) standing on the rear portion of the base (30).

The stopper mechanism (H) is connected to the main frame (7
9) Two guide rods (80) parallel to each other are slidably arranged in the vertical direction, and a subframe (81) is horizontally installed between the lower ends of the guide rods (80) and fixed. A stopper plate (83) vertically arranged on the tip of an arm (82) horizontally fixed to the left side of the front side of the subframe (81) is swingably supported, and the stopper plate (83) is connected to the right side of the front side of the subframe (81) and the stopper. A shock absorber (84) is arranged between the plate (83) and an air cylinder (85) for raising the sub frame (81) along the guide rod (80) on the main frame (79). The stopper plate (83) is arranged at a position along the supply path of the material (S) or further in parallel to it at a further back side.

The air cylinder (85) is a sub-frame (81).
The sub-frame (81) is configured so that the sub-frame (81) can be lowered by its own weight while it functions only when the sub-frame (81) is raised.

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 (34) of the folding mechanism (A) is in a standby state in which the folding roller (39) is located on the rear side of the material (S) transport path, Attach the lower end of the work pressing plate (40) to the stacker mechanism (D).
The table (50) of the stacker mechanism (D) is at the highest position, and the push plate (61) of the transfer mechanism (E) is retracted to the right side in FIG. The support rod (73) of the support mechanism (F) has risen to just below the core bar (33) of the bending mechanism (A), and the guide plate (77).
Is raised to the position where the material (S) is conveyed, and the lower end of the stopper plate (83) of the stopper mechanism (H) is substantially in contact with the table (50) of the stacker mechanism (D). I shall.

First, as shown in FIG. 6, the material (S) is supplied toward the bending mechanism (A) by the supply mechanism (B), and the hook portion at the tip of the work (W) is formed by the length measuring mechanism (I). The supply mechanism (B) is temporarily stopped when it is detected that the material has been transferred for a predetermined length.

Next, as shown in FIG. 7, the folding mechanism (A) is actuated, and the swinging motor (M ₁ ) rotates the folding arm (34) by a predetermined angle to move the folding arm (34). By turning,
The material (S) is pressed by the folding roller (39), and the hook forming angle, for example, along the R portion (37) of the core metal (33),
Fold it to 135 °.

In the folding process, the folding roller (39) projects tangentially from the R portion (37) of the core bar (33) of the material (S),
At a position apart from the core metal (33) by a predetermined position, the R portion (3
The material (S) is bent by pressing in the direction along 7).

Next, as shown in FIG. 8, the swinging motor (M ₁ ) is rotated in the reverse direction, the folding arm (34) is returned to its original position, and then the supply mechanism (B) is operated again to move the material ( S) is supplied for a length such that one side of the work (W) (S) can be formed.

Next, as shown in FIG. 9, the bending mechanism (A) is actuated to rotate the bending arm (34), and the material (S) is transferred to the R of the core metal (33) in the same manner as described above. By pressing the folding roller (34) along the portion (37), the spiral product (P)
Bend at an angle corresponding to the corner of (90 ° because it is a rectangular spiral product here). Then, the bending arm (34) is returned to the original position.

Next, as shown in FIGS. 10 to 13, the material (S) is supplied in a predetermined amount as described above, the bending arm (34) is rotated, and the material is transferred by the bending roller (39). (S) is bent along the R portion (37) of the core bar (33).

Next, as shown in FIG. 14, the support rod (7) of the support mechanism (F) is
3) is moved horizontally by the air cylinder (76) so as not to interfere with the hook part of the work (W). The material (S) is supplied by the supply mechanism (B) to a predetermined length, and the work (W) is transferred 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 move the pressing plate (61) in the left direction in the figure, that is, in the supply direction of the material (S). At this time, the work (W) is pressed and moved in synchronization with the material (S) by the guide plate (77), the work pressing plate (40), and the moving pressing plate (61), whereby the supply mechanism ( It is possible to smoothly supply the material (S) with a light load without applying unnecessary load to B), and unnecessary stress is not applied to the material (S) and the work (W) supplied by the supply mechanism (B). Therefore, the material (S) is transferred without being bent and the work (W) is not deformed or deformed, and is in a standby state for the next bending operation. Further, at this time, the material (S) and the work (W) protruding from the core metal (33) are regulated in position by the guide plate (77) of the guide mechanism (G) provided near the core metal (33). , The work (W) is reliably transferred along the supply direction without colliding with the side end of the work pressing plate (40) of the bending mechanism (A) or the work (W) being entangled. .

Then, when the supply of the material (S) and the conveyance of the work (W) are completed, the air cylinder (76) is operated to reposition the support rod (73) below the core metal (33) and the hydraulic pressure is applied. Operate the motor (M ₄ ) to retract the push plate (61) to its original position.

Next, as shown in FIG. 15, the bending arm (34) is rotated by 90 °, and the material (S) is transferred to the R portion (37) of the core metal (33) as described above.
If it is bent along, a work (W) for one turn is formed.

Here, when the material (S) is bent by rotating the bending arm (33), the work (W) manufactured up to the previous step
Centrifugal force acts on the work to disperse it, but since the support rod (73) of the support mechanism (F) is located at the inner corner of the work (W), the work (W) is not supported. The rod (73) is used as a fulcrum to rotate in the bending direction of the material (S) to prevent the material (S) from jumping out. At the end of bending the material (S), even if the rotation of the bending arm (34) is stopped, the work (W) located below the bending point tends to rotate further due to inertia. The work (W) collides with the stopper plate (83) of the stopper mechanism (H), and the shock is absorbed by the shock absorber (84), whereby the work (W) is forcibly stopped at a predetermined position.

The work (W) for one turn is hung downward from the core metal (33) by its own weight and is positioned on the table (50) of the stacker mechanism (D). Every time the workpiece (W) increases by one turn, the diameter of the material (S) is lowered by the drive of the hydraulic motor (M ₃ ). Furthermore, as the table (50) descends,
The work pressing plate (40) of the folding mechanism (A) and the stopper plate (83) of the stopper mechanism (H) descend by the same amount by their own weight following the lowering of the table (50).

Below, it will be the bending work of the second turn of the work (W).

First, as shown in FIG. 16, with the bending arm (34) returned to its original position, the supply mechanism (B) supplies a predetermined amount of the material (S) and synchronizes with it. The push plate (61) of the transfer mechanism (E) moves the work (W) for one turn. At this time, since unnecessary stress is not applied to the material (S) and the work (W) as described above, the deformation of the shape such as bending is prevented, and the material (S) and the work (W) for one turn are prevented. Is regulated by the guide plate (77) of the guide mechanism (G) and reliably transported along the material (S) supply direction, and the pushing plate (61) and the guide plate (77) of the transport mechanism (E) are transferred. Works the same as below.

Next, as shown in FIG. 17, the bending arm (34) is rotated 90 ° and the material (S) is moved along the R portion (37) of the core metal (33) by the bending roller (39). Fold. At this time, the work (W) located below the material (S) in the bending process is pressed on one side by the work pressing plate (40) and is deformed in synchronism with the bent side of the material (S). Rotate without doing. The work (W) is rotated by the swinging motion of the bending arm (34) while being supported at the corners by the support rods (73) of the support mechanism (F) in the same manner as described above. That is, when it rotates 90 °, it is surely stopped at a predetermined position by the stopper plate (83) of the stopper mechanism (H).

Next, as shown in FIGS. 18 to 21, the material (S) is further bent at two places as described above, and then the material (S) is supplied as shown in FIG. ) Push plate (6
At the time of transfer by 1), the support rod (73) is moved in the horizontal direction by operating the air cylinder (76) so as not to interfere with the hook part of the work (W) as in the case of FIG. I will let you. Then, after the supply mechanism (B) has supplied the material (S) for a predetermined length and the transfer mechanism (E) has moved the work (W), the support rod (73).
After returning to the original position, the work (W) for two turns is formed by bending the material (S) as described above.

After that, the work (W) having a predetermined number of turns is bent and formed by repeating the above operation. In addition, the table (50) 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. 23, with the stopper plate (83) of the stopper mechanism (H) retracted upward by the air cylinder (85), the bending arm (34) is rotated by a predetermined angle, and the material (S ) The above-mentioned hook portion forming angle is bent to form the hook portion on the terminal side.

Next, as shown in FIG. 24, after the support rod (73) is retracted into the base block (72) by the operation of the air cylinder (75), the hydraulic cylinder of the cutting mechanism (C) is operated. , The holding member (32) and the cored bar (33) are moved horizontally with respect to the fixed blade (49). Then, the material (S) has the plate blade (48) attached to the holding member (32) and the fixed blade (49).
To be sheared between.

With the above operation, a spiral product (P) having hooks formed at both ends as shown in FIG. 25 and having a predetermined number of turns can be obtained. After taking out the spiral product (P) from the table (50), The spiral products (P) may be sequentially manufactured by repeating the operation.

As described above, according to the spiral product manufacturing apparatus of the present invention, the guide plate is provided by the push plate (61) having the work (W) directly mounted and supported on the table (50) attached to the carriage (59). It is not necessary for the material (S) or the work (W) during the above-mentioned movement because it is pressed and moved in synchronism with the supply of the material (S) under the constraint between the (77) and the work pressing plate (40). Since no force is applied, deformation such as bending and deformation are prevented, and the push plate (61) is moved on the table (50) by the reciprocating movement of the carriage (59) housed in the table (50). Since the work (W) is moved, the device can be downsized. According to the device of the present invention, in addition to the spiral product (P) as described above, spiral products (P) with different hook portion forming positions as shown in FIG. 26 are shown in FIGS. 27 to 29. Such a one-turn spiral product (P) and a spiral product with less than one turn having hook portions at both ends as shown in FIGS. 30 to 33 can be easily manufactured, and the above-described FIGS. 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 The present invention employs a method of moving a bent spiral work when supplying a material, by using a method of moving by a pressing plate, so that there is no unevenness in feeding due to slip unlike the roller conveyor method, It is possible to easily and surely perform synchronous movement in the same movement state as described above, and thereby, it is possible to reliably prevent the bent spiral work from being distorted or deformed. Further, it is possible to reduce the load on the material feeding operation, and it is possible to prevent unnecessary force from acting on the material and the spiral work.

Further, the present invention adopts a method of bending the material in the horizontal direction around the vertical axis as a method of bending the material.
It is only necessary to lower the table by a fixed amount each time the bending operation for one turn is completed, and the gravity of the work itself can be used to feed the work in the spiral axis direction, which facilitates the setting of the spiral pitch.

[Brief description of drawings]

1 to 33 show an embodiment of the manufacturing apparatus for spiral products according to the present invention. FIG. 1 is a front view of the above apparatus, FIG. 2 is a plan view of FIG. 1, and FIG. FIG. 4 is a plan view of the main part of the transfer mechanism in the above apparatus, FIG. 4 is a side view of FIG. 3, FIG. 5 is a front view of FIG. 3, and FIGS. 6 to 24 are operation procedures of the manufacturing apparatus. 25 to 33 are schematic diagrams for explaining the above, and FIGS. 25 to 33 are schematic diagrams showing examples of products that can be manufactured by the device of the present invention. 34 to 40 show an example of a conventional manufacturing apparatus for spiral products, FIG. 34 is a front view, FIG. 35 is a side view,
FIG. 36 is a plan view, and FIGS. 37 to 40 are schematic diagrams for explaining the operation of the above apparatus. (A) …… Bending mechanism, (D) …… Transfer mechanism, (P) ……
Spiral product (finished product), (S) ... Material, (W) ...
… Work (intermediate product), (50) …… Table, (59)…
… Car, (61) …… Push plate.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Manabu Hagino 16-4 Sakonyama, Asahi-ku, Yokohama-shi, Kanagawa 1-20-406 Sakonyama housing complex (56) References JP-A-53-30461 (JP, A)

Claims (1)

[Claims] 1. A long continuous rod-shaped or linear material is intermittently supplied to a folding mechanism along the longitudinal direction, and the folding mechanism horizontally folds the material at predetermined intervals around a vertical axis. In a device for manufacturing a spiral product by bending, a spiral work located below the bending mechanism and extending downward from the material is placed and supported, and each time the bending operation for one turn is completed by the bending mechanism. A table that descends a fixed amount on the table, a carriage that is built in the table, and moves in the material supply direction in synchronization with the material, and a table that is connected to the carriage and that is located on the table. An apparatus for manufacturing a spiral product, comprising a transfer mechanism including a pressing plate for pressing and moving a spiral work.