JP2001334483A - Device for separating and transferring annular molding material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an annular molding material separating and transferring device for individually separating a plurality of stacked annular molding materials and automatically transferring these to the next process. SOLUTION: The uppermost annular molding material A of the plurality of stacked annular molding materials A is held between a pair of right and left chuck jaws 12 of a chuck mechanism 1. The chuck mechanism 1 is connected to an elevation mechanism 5 via a floating mechanism 4 in a freely tilting manner. A press holding mechanism 2 is fixed to the lower part of the chuck mechanism 1 for giving downward press to the annular molding materials A when the chuck mechanism 1 is elevated down. A transfer mechanism 6 is provided for transferring the mechanisms 1, 2, 4, 5 together with the annular molding materials A to the next process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ring for taking out each member individually and automatically transferring it to the next step in a state where a plurality of members formed in a ring shape are stacked in multiple stages. The present invention relates to an apparatus for separating and transferring a shaped material.

[0002]

2. Description of the Related Art In general, as a reinforcing bar for concrete of a structure such as a pillar or a beam of a reinforced concrete building, a reinforcing bar having a ring shape arranged around a main bar having a straight rod shape is used. In order to process the reinforcing bar into a ring shape, a straight bar-shaped reinforcing bar is cut into a predetermined length, and then this is bent into a ring shape using a forming machine, and finally, the facing ends are welded with a welding machine or the like. Use and weld.

[0003] A member which is bent in a ring shape by such a forming machine and has both ends unjoined (hereinafter referred to as a "ring-shaped formed material"), after molding, is fixed in a certain amount by a work transport conveyor or the like. Since they are carried out in a state of being stacked in the direction, it is necessary to individually take out the carried-out ring-shaped formed materials and supply them to the next process such as welding. In such a case, the ring-shaped moldings carried out of the molding machine by the work transport conveyor or the like are not stacked in an orderly manner, but may be displaced from side to side with respect to each other or may be distorted during processing. There is a tilt. For this reason, conventionally, all the operations of individually taking out the ring-shaped molding materials that are carried out in a stacked state and supplying them to the next process such as welding are performed manually, and automation is not achieved. is the current situation.

[0004]

However, it takes an enormous amount of labor to manually take out the ring-shaped molding materials thus stacked from the uppermost stage and supply them to the next step. However, there is a problem that work processing efficiency is poor. The present invention solves the conventional problems as described above, and a ring-shaped molding capable of taking out a plurality of stacked ring-shaped moldings individually and automatically transferring them to the next step. An object of the present invention is to provide an apparatus for separating and transferring materials.

[0005]

In order to achieve the above object, a ring-shaped formed material separating and transferring apparatus according to the present invention is provided with a ring-shaped formed material at the uppermost stage among a plurality of stacked ring-shaped formed materials. A chuck mechanism that is sandwiched and gripped by at least a pair of chuck claws, an elevating mechanism that moves the chuck mechanism up and down, and a floating mechanism that connects the chuck mechanism to be tiltable with respect to the elevating mechanism.
A holding mechanism fixed to a lower portion of the chuck mechanism and holding down the ring-shaped molding material in a state where the chuck mechanism is lowered by the elevating mechanism, and transferring each of the mechanisms together with the ring-shaped molding material to the next step. And a transfer mechanism that performs the operation (claim 1).

According to this structure, when the chuck mechanism is lowered to the position corresponding to the uppermost stage of the stacked ring-shaped molding materials by the lifting mechanism, the pressing mechanism presses the ring-shaped molding material downward. As a result, the lifting of the ring-shaped molding material is regulated, and the chuck mechanism is positioned with respect to the uppermost ring-shaped molding material. At this time, if the uppermost ring-shaped molding material is inclined due to its deformation or the like, the floating mechanism causes the chuck mechanism and the holding mechanism to tilt following the inclination. In this state, the ring-shaped formed material is gripped by the chuck claws of the chuck mechanism, and the ring-shaped formed material is raised together with the chuck mechanism by the elevating mechanism, whereby only the uppermost ring-shaped formed material can be taken out. Next, the ring-shaped formed material can be automatically supplied to the next step by transferring each mechanism together with the ring-shaped formed material by the transfer mechanism.

The chuck mechanism includes an extruding mechanism for individually extruding the chuck claws toward a ring-shaped molding material, and a slide mechanism for holding each of the extruding mechanisms and moving the two together in conjunction with each other. Is preferable (claim 2). In this case, the chuck claw can be pushed out toward the ring-shaped molded material independently of the operation of the slide mechanism by the pushing mechanism held by the slide mechanism. Even if it is located, the ring-shaped molding material can be reliably gripped.

The floating mechanism includes a pair of left and right connecting portions provided on the chuck mechanism, a pair of connecting bars one end of which is swingably engaged with each of the connecting portions, and the other end of each connecting bar. It is preferable to include a pair of balance mechanisms that hold In this case, since the chuck mechanism can be swingably held via the connecting portion and the connecting rod, the chuck mechanism can be mounted on the ring formed material so as to be tiltable, and the weight of the chuck mechanism is reduced by the balance mechanism. When the chuck mechanism is moved up and down by balancing, the chuck mechanism can be softly lowered and raised with respect to the ring-shaped molding material.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be shown and features thereof will be described in more detail. FIG. 1 is a front view showing an apparatus for separating and transferring a ring-shaped molded material according to an embodiment of the present invention. FIG. 2 is a side view showing a part of a chuck mechanism constituting the separating and transferring apparatus shown in FIG. FIG. 3 is a sectional view taken along line XX of FIG. As shown in FIG. 1, the separation and transfer device for the ring-shaped molding material has a carrier C
A chuck mechanism 1 for gripping the ring-shaped molding material A stacked on the substrate, and a holding plate 2 as a holding mechanism for contacting and holding the ring-shaped molding material A when the chuck mechanism 1 is lowered. A lifting mechanism 5 for moving the chuck mechanism 1 up and down, and a floating mechanism 4 for tiltably connecting the chuck mechanism 1 to the lifting mechanism 5
A main part is constituted by a transfer mechanism 6 for transferring the mechanisms 1, 5, and 4 together with the ring-shaped molding material A to the next step.

The chuck mechanism 1 includes two pairs of left and right chuck claws 12, a pushing mechanism 3, and a slide mechanism 13. As shown in FIGS. 2 and 3, the slide mechanism 13 has a horizontal shaft 15 connected to a drive unit (not shown) in a casing 14. Both ends of the horizontal shaft 15 And is rotatably supported by bearings and the like. The horizontal shaft 15 has two pinion gears 1 at the front and rear along the axial direction.
A pair of upper and lower racks 13a are meshed with the respective pinion gears 13b. Then, the pair of racks 1
A pair of left and right slide arms 13d inserted through through holes 13c provided on both side surfaces of the casing 14 are connected to both ends of each of the 3a.

Of the left and right slide arms 13d located on the upper side with the pinion gear 13b interposed therebetween, the left slide arm 13d in FIG.
Through the insertion hole 33 formed in the second side plate 32
Is fixed to the first side plate 13e arranged outside. On the other hand, the right slide arm 13d is inserted into a through hole 33 formed in the second side plate 32 and a through hole 11b formed in the first side plate 13e disposed outside the second side plate 32, respectively. It has been inserted. On the left and right slide arms 13d located below the pinion gear 13b, on the contrary, the left slide arm 13d has an insertion hole 33 formed in the second side plate 32 and the first slide arm 13d. The right side slide arm 13d is fixed to the first side plate 13e through an insertion hole 33 formed in the second side plate 32, while being inserted into the through holes 11b formed in the side plate 13e. Thus, when the slide mechanism 13 is driven, the pushing mechanism 3 and the chuck claw 12 follow the sliding arm 13
Since it moves along d, the mutual distance between the left and right extrusion mechanisms 3 can be adjusted according to the width of the ring-shaped molding material A.

The pushing mechanism 3 comprises a first hydraulic cylinder 31 and a second side plate 32. The first hydraulic cylinder 31 is attached to the first side plate 13e and has a piston. The rod 31a is connected to the first side plate 13e.
Is connected to the second side plate 32 through a through hole 11c formed in the second side plate 32. Further, the second side plate 32 is a first side plate 1.
3e can be moved toward and away from the chuck claw 1e.
2 are installed. Accordingly, as the piston rods 31a of the left and right first fluid pressure cylinders 31 advance, the second side plate 32 slides along the slide arm 13d, and the left and right chuck claws 12 are individually moved. It is extruded toward the ring-shaped molding material A.

The force by which the first hydraulic cylinder 31 presses the chuck jaws 12 is smaller than the force by which the slide mechanism 13 moves the chuck jaws 12, and the chuck jaws 12 pinch the ring-shaped molding material A. Is set to the minimum value required to hold. The pair of chuck claws 12 are provided with V-shaped grooves 12a extending along the peripheral surface of the element wire of the ring-shaped molding material A, and are arranged with the grooves 12a facing each other.

The holding plate 2 is a long and narrow plate-like body longer than the width of the ring-shaped material A. The longitudinal direction of the holding plate 2 is parallel to the slide arm 13d at two positions before and after the lower surface of the casing 14. In this way, it is fixed via the spacer 21. When the chuck mechanism 1 descends, the presser plate 2 presses the ring-shaped molding material A downward to limit the lifting thereof. In addition, the spacer 2
1 is that when the holding member 2 presses the ring-shaped molding material A, the lower surface of the holding plate 2 and the upper part of the groove 12a of the chuck claw 12 are flush with each other, The thickness is set in advance so that the groove 12a of the claw 12 is accurately fitted.

The floating mechanism 4 includes the chuck mechanism 1
Is tiltably connected to the elevating mechanism 5 so as to maintain the posture following the inclination of the uppermost ring-shaped molding material A. The floating mechanism 4 includes a pair of left and right connecting portions 41 provided on an upper portion of the chuck mechanism 1, and connecting rods 4 individually connected to the respective connecting portions 41.
2, and an air cylinder 43 as a pair of left and right balance mechanisms that hold the upper end of each connecting rod 42.

Each of the connecting portions 41 has a cylindrical main body portion 4.
A flange portion 41a extending outward from the bottom portion of the casing 1c is fixed to the upper surface of the casing 14, and the main body portion 41
In the upper part of c, a circular hole 41b larger than the outer diameter of the connecting rod 42
The lower end of the connecting rod 42 is inserted into the circular hole 41b, and a hemispherical head 42a having a diameter larger than that of the circular hole 41b is formed at the end thereof. An axial gap is provided between the hemispherical head 42a and the upper part of the main body. Thus, the connecting rod 42 is restricted by the hemispherical head 42a so as not to come out of the circular hole 41b of the connecting jig 41c, and the chuck mechanism 1 is connected to these connecting rods 42 so as to be tiltable in all directions. Is done.

Further, the air cylinder 43 balances the weight of the chuck mechanism 1 and the ring forming material A.
It functions as a kind of air cushion that can be softly placed on the upper and lower sides of the horizontal beam 51 of the lifting mechanism 5 as shown in FIG.
Holds the upper end of

The elevating mechanism 5 is for raising and lowering the entire chuck mechanism 1, and includes a horizontal beam 51 provided with the air cylinder 43, a second fluid pressure cylinder 53, and a horizontal beam 51.
And a pair of guide lots 54 for guiding the ascending and descending. The lower end of the piston rod 55 of the second fluid pressure cylinder 53 is connected to the upper surface of the center of the cross beam 51 via a joint 52.

The transfer mechanism 6 includes an automatic welding machine B for moving the chuck mechanism 1 and the elevating mechanism 5 together with the ring-shaped molding material A.
Is transported to the position where is installed. The transfer mechanism 6 includes a guide rail 61 suspended from above the mounting table C and the automatic welding machine B, a movable carriage 62 mounted with the elevating mechanism 5 and held by the guide rail 61, and a movable carriage 62. And a drive device (not shown) for moving the roller 62 along the guide rail 61.

Next, a series of operations of the apparatus for separating and transferring a ring-shaped molded material having the above-described structure will be described with reference to FIGS. FIG. 3 shows that the chuck mechanism 1 is lowered by the elevating mechanism 5 with respect to the ring-shaped molding materials A stacked in an irregular state on the carrier C, and the pressing plate 2 is moved to the uppermost ring-shaped molding material A. It shows a state of being placed on the upper surface. When the chuck mechanism 1 is lowered, the chuck mechanism 1 is softly placed on the upper surface of the ring-shaped molding material A by the action of the air cylinder 43 provided on the cross beam 51. When the uppermost ring-shaped molding material A is slightly inclined with respect to the horizontal plane, the holding plate 2 receives a reaction force from the ring-shaped molding material A, so that the floating mechanism 4
Works, the chuck mechanism 1 and the holding plate 2 are tilted following the inclination of the ring-shaped molding material A, and the holding plate 2 is brought into close contact with the upper surface of the ring-shaped molding material A finally. As described above, the lifting of the ring-shaped molding material A is limited, and the chuck claw 12 of the chuck mechanism 1 is positioned at a position where the ring-shaped molding material A can be securely gripped. When the presser plate 2 comes into close contact with the upper surface of the ring-shaped molding material A, this is detected by a sensor, and the driving of the second fluid pressure cylinder 53 of the elevating mechanism 5 is stopped.

In this state, when the pinion gear 13b is rotated clockwise in FIG. 3 by driving the horizontal shaft 15 constituting the slide mechanism 13, the upper rack 13a and the gear connected to the upper rack 13a are correspondingly rotated. The allied arm 13d moves to the right, and the lower rack 13a and the slide arm 13d connected thereto move to the left. Along with this, the first side plates 13e arranged on the left and right come closer to each other, and the distance between the first and second side plates 13e gradually decreases.
When the piston rod 31a of the first fluid pressure cylinder 31 of each of the left and right pushing mechanisms 3 is moved forward during the operation, the second side plate 32 is pressed by the piston rod 31a, and moves on each slide arm 13d. Slide toward casing 14. Therefore, the chuck claws 12 finally attached to the second side plate 32 sandwich and hold the ring-shaped molding material A from the left and right (see FIG. 4). At this time, even if the ring-shaped molding material A is deviated left and right with respect to the chuck mechanism 1, the second side plates 32 are individually slid along the slide arms 13d by the first left and right hydraulic cylinders 31. Therefore, both sides of the ring-shaped molding material A can be reliably held.

Next, when the second fluid pressure cylinder 53 of the elevating mechanism 5 is retracted to raise the cross beam 51, the connecting rod 42 connected to the air cylinder 43 of the cross beam 51 gradually rises. Then, when the hemispherical head 42a at the tip of the connecting rod 42 comes into contact with the upper part of the connecting jig 41c, the weight of the chuck mechanism 1 is gradually applied to the lifting mechanism 5 side via the air cylinder 43, and The gripped ring-shaped molding material A floats away from the lower ring-shaped molding material A. At this time, the chuck mechanism 1 is held horizontally by the action of the floating mechanism 4 (see FIG. 5).

Next, when the pinion gear 13b of the slide mechanism 13 is further rotated clockwise, the left and right first side plates 13e further approach each other, and the distance between the two first side plates 13e gradually decreases. At this time, the movement of the left and right second side plates 32 is restrained by the chuck claws 12 gripping the ring-shaped molding material A.
The piston rod 31a of the first hydraulic cylinder 31 is
The second side plate 32 gradually contracts while being kept pressed at a constant pressure, and finally the first side plate 13 e is
It is in a state of close contact. When the rotation of the pinion gear 13b is stopped in this state, the center position of the ring-shaped molding material A in the left-right direction matches the center position of the chuck mechanism 1 in the left-right direction. Therefore, even if the center positions of the ring-shaped molding materials A are shifted when the ring-shaped molding material A is gripped, these are automatically corrected (see FIG. 6).

In this way, the ring-shaped molding material A lifted together with the chuck mechanism 1 by the lifting mechanism 5 is transferred by the transfer mechanism 6 to the automatic welding machine B in the next processing step. Then, after the ring-shaped molding material A is lowered by the elevating mechanism 5, the gripping of the ring-shaped molding material A is released from the chuck mechanism 1, and the ring-shaped molding material A is set in the automatic welding machine B, Here, the opposite ends of the ring-shaped molding material A are welded.

The ring-shaped molded material of the present invention is not limited to the above-described embodiment. For example, at least one pair of chuck claws 12 may be provided, and in other respects, various shapes may be used. Design changes can be made.

[0026]

As described above, according to the apparatus for separating and transferring a ring-shaped material according to the first aspect, the ring-shaped material is automatically moved by the chuck mechanism regardless of the inclination of the uppermost ring-shaped material. , And automatically separate from the lower ring-shaped molded material, and can be automatically transferred to the next step, so that the ring-shaped molded material can be separated,
The labor of the transfer operation can be saved, and the productivity can be improved.

According to the second aspect of the present invention, even if the ring-shaped molded material is deviated from a predetermined position with respect to the chuck mechanism, the ring-shaped molded material can be reliably gripped. In addition, since it is possible to correct and hold the deviation, it is possible to center the ring-shaped molded material only by transferring it to a predetermined position in the next step, and the automatic supply is further facilitated.

According to the apparatus for separating and transferring a ring-shaped material according to the third aspect, the chuck mechanism can be lowered and raised softly on the ring-shaped material.
Operation reliability is high.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of a device for separating and transferring a ring-formed material according to the present invention.

FIG. 2 is a side view showing a part of the chuck mechanism cut away.

FIG. 3 is a cross-sectional view taken along line XX of FIG. 2 showing a state where the chuck mechanism is lowered onto a ring-shaped molding material.

FIG. 4 is a cross-sectional view showing a state where the chuck mechanism has gripped the ring-shaped molding material from the state shown in FIG.

5 is a cross-sectional view showing a state where the chuck mechanism grips and lifts the ring-shaped molding material from the state shown in FIG.

FIG. 6 is a cross-sectional view showing a state where the chuck mechanism has centered while gripping the ring-shaped molding material from the state shown in FIG. 5;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 chuck mechanism 12 chuck claw 13 slide mechanism 2 holding plate (holding mechanism) 3 pushing mechanism 31 first fluid pressure cylinder 4 floating mechanism 41 connecting part 42 connecting rod 43 air cylinder (balance mechanism) 5 elevating mechanism 51 cross beam 52 joint 53 second hydraulic cylinder 55 piston rod 6 transfer mechanism A ring-shaped molding material

Claims (3)

[Claims] 1. A chuck mechanism for holding an uppermost ring-shaped member among a plurality of stacked ring-shaped members by at least a pair of chuck claws, and a lifting mechanism for lifting and lowering the chuck mechanism. A floating mechanism for tiltably connecting the chuck mechanism to the lifting mechanism; a floating mechanism fixed to a lower portion of the chuck mechanism; and holding down the ring-shaped molding material in a state where the chuck mechanism is lowered by the lifting mechanism. An apparatus for separating and transferring a ring-shaped material, comprising: a holding mechanism for attaching; and a transfer mechanism for transferring each of the mechanisms together with the ring-shaped material to the next step. 2. A chuck mechanism comprising: an extrusion mechanism for individually pushing out the chuck claws toward a ring-shaped molding material; and a slide mechanism for holding each of the extrusion mechanisms and for moving the two together in conjunction with each other. The apparatus for separating and transferring a ring-shaped molded material according to claim 1. 3. The floating mechanism comprises: a pair of left and right connecting portions provided on the chuck mechanism; a pair of connecting rods each of which has one end swingably engaged with each of the connecting portions; The apparatus for separating and transferring a ring-shaped molded product according to claim 1, further comprising a pair of balance mechanisms for holding the other end.