JPS6132101B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire separating and conveying device, and more particularly to a wire separating and conveying device suitable for use in an automatic forming line for frame lines used for automobile seat frames and the like. For example, when processing a frame used as an external frame member for automobile seats, cushion furniture, pine tresses, etc. using a three-dimensional three-dimensional bending press, conventionally a simple die was attached to a lightweight single-acting press machine. A worker was assigned to each press machine to manually transport the wire rods to the press machine, and then feed the wire rods one by one into the press machine for manual processing.

Therefore, there were problems in that it was time-consuming to transport and that there was danger during feeding into a press machine and during processing. In order to solve this problem, it is possible to use a robot arm that has been used recently, but the control of the arm would be complicated, and the operation would be complicated because it would involve grasping.
This problem arises.

The present invention was made to solve the above problems, and by combining the simple movements of swinging and linear reciprocating motion of the walking beam, the supplied wires are automatically separated one by one and pressed. It is an object of the present invention to provide a wire separating and conveying device that can convey, feed, and press wire rods into the device.

As a result of intensive research into means for achieving the above object, the present inventors have developed the wire separating and conveying device described below.

That is, the wire rod separation and conveyance device of the present invention is a wire rod separation and conveyance device that separates a plurality of supplied wire rods one by one using a wire rod separation device, and conveys and discharges the wire rods to the next stage press device using a walking beam. upper and lower work chutes forming passages for accumulating wire rods supplied to the wire rod separation device; and upper and lower work chutes each rotatably provided and attached to the upper and lower work chutes so that their tips are closed by springs. The structure includes a vertical separation arm that is energized and a cooperative lever that is fixed to one of the vertical separation arms and that provides opening/closing motion to the separation arm, and a mechanism is provided at the rear end of the walking beam that causes the movement of the cooperative lever to move forward and backward. The wire separating and conveying device is characterized in that a cooperative lever abutting portion is provided which abuts and applies an opening/closing motion to the separation arm via the cooperative lever.

By using the wire separating and conveying device of the present invention, a large number of wires supplied by a conveyor or the like can be processed by moving the walking beam back and forth without the need for a new complicated device and drive source for separating the wires. can be automatically separated one by one in synchronization with

Furthermore, by attaching an unloader arm 134 provided with a forward-release unloader claw 137 as shown in FIG. 4 to the tip of the walking beam in the wire separating and conveying device of the present invention, the wire can be automatically supplied to the press device. The discharge can also be performed in conjunction with the forward and backward movement of the walking beam.

Note that the walking beam mechanism in the present invention performs a repeated movement that combines forward and backward movement and rocking movement by the cylinders 119 and 122, and sequentially conveys the conveyed object forward through the installation gaps of the intermediate receivers 138 and 139. A conventional walking beam mechanism can be used.

Hereinafter, one embodiment of the present invention will be described based on the drawings. First, each component in the wire separating and conveying device of this embodiment will be explained.

FIG. 1 shows an embodiment of the wire separating and conveying device according to the present invention, and the wire rod 2 is supplied to the wire separating device 8 from a belt conveyor 97. In the wire separating device 8, an inclined passage 100 is formed between an upper work chute 98 and a lower work chute 99, and the wire 2 guided from the belt conveyor 97 to the inclined passage 100 slides by gravity and moves diagonally downward. Being moved to.

As shown in detail in FIGS. 2 and 3, the upper surface of the distal end of the lower washute 99 is an inclined surface 122 that expands toward the front, and the wire 2 passing through the passage 100 is directed toward this inclined surface 112. It is meant to fall along.

On the other hand, an upper separation arm 101 is rotatably supported on the upper work chute 98 by a shaft 102, and a lower separation arm 103 is supported on the lower work chute 99.
is swingably supported by a shaft 104. These arms 101 and 103 function as control arms that feed out the wire one by one. Upper separation arm 1
01 is biased counterclockwise in the figure by a spring 105, so that the rising portion 106 at the tip can stop the wire falling within the passage 100 near its exit. The lower separation arm 103 is biased clockwise in the figure by a spring 108 that is locked to one end of a cooperating lever 107 that is integrally attached to the shaft 104, so that the rising portion 109 at the tip of the lower separation arm 103 is biased toward the upper separation arm. It is adapted to come into pressure contact with the rising portion 106 of 101 from below. The length of the rising portion 106 in the direction along the path 100 is longer than the length of the rising portion 109 of the lower separation arm 103 in the direction along the path 100 by the diameter of the wire 2.

The reference numeral 110 in the figure is a stopper, and this stopper 110 is connected to the rising portion 1 of the upper separation arm 101.
06 is prevented from rotating further counterclockwise beyond the position where the passage 100 is closed. Further, the reference numeral 111 in the figure is a stopper for the lower separation arm 103, and this stopper 111 is a stopper for the lower separation arm 103.
The rising portion 109 of 03 is prevented from rotating further clockwise beyond the position where the passage 100 is closed.

Cooperative lever 107 integrated with lower separation arm 103
protrudes downward from the lower separation arm 103, and its tip protrudes into the locus of movement of the walking beam 115 of the autoloader 9 for three-dimensional bending press. The rear end of this walking beam 115 is configured to move back and forth in a substantially horizontal direction as shown in FIG.
A cam roller 116 is rotatably provided as an abutting member to the cam roller 1, and the cooperative lever 107 is moved when the walking beam 115 moves backward.
16 to swing counterclockwise in the figure.

The walking beam 115 has a swing bed 117
It is placed on the top via rollers 118 so that it can move back and forth in a substantially horizontal direction. Furthermore, the walking beam 115 is driven back and forth by an air cylinder 119 for forward and backward movement provided on the swing bed 117. The swing bed 117 is swingably supported by a shaft 121 at a position near the wire separation device 8 on the top of the autoloader main body 120. Also, the shaft 12 of this swing bed 117
The end opposite to 1 is engaged with a shaft 123 provided at the tip of a swinging air cylinder 122 as a swinging device via a horizontal elongated hole 124, thereby swinging about the shaft 121. It is becoming more and more common. Reference numeral 125 in the figure is an autoloader main body 120
It shows the rollers provided on the lower side of the autoloader 9 so that the autoloader 9 can move on the rails 126.

Three wire transport claws 127 , 128 and 129 are provided on the walking beam 115 at equal intervals from the lower side of the inclined surface 112 of the wire separation device 8 . These conveyance claws 127, 128, 129
V-shaped first to third wire receiving portions 130A to 130C are formed on the upper surface of each wire receiving portion 130, and a magnet 131 is provided below the center of the wire receiving portion 130.
are respectively embedded so as to attract and hold the wire on the wire receiving portion 130.

Here, the stroke of the air cylinder 119 for advancing and retracting motion is the same as the pitch between the respective wire rod conveying claws.

Furthermore, as shown in detail in FIG. 4, at the front end of the walking beam 115, an unloader arm 134 serving as a U-shaped discharge section is integrally attached by a joint section 135 and a mounting bolt 136. . An unloader claw 137 is formed on the upper surface of the unloader arm 134, with the front end thereof rising vertically. The distance between the unloader claw 137 and the third wire transport claw 129 is the same as the distance between each wire transport claw.
And, this unloader arm 134 always
It is arranged at a position where it enters the press 10.

At a position above the walking beam 115, a first wire transport claw 127 of the walking beam 115, which is separate from this beam 115, is located below the inclined surface 112 of the wire separation device 8 as shown in the figure. Two intermediate receiving portions 138 and 139 are provided at positions corresponding to directly above the second and third wire transport claws 128 and 129.
These intermediate receiving parts 138 and 139 are in a planar position so that they can receive the wire from the first and second wire transport claws 127 and 128 and deliver it to the second and third wire transport claws 128 and 129, respectively. A V-shaped wire receiving portion 140 is formed between the walking beams 115 and similar to the wire transporting claws.

On the front end side of the autoloader main body 120, as shown in FIGS. 5A and 5B, a walking beam 115 is provided.
A pair of workpiece insertion guides 141 are provided at lateral positions, and the wire rod 2 suspended and held by the wire rod conveying claws 129 of the walking beam 115 is leveled as it approaches the next press device 10. , so that when placed on the lower die 142 of the press device 10, it is horizontal as shown in FIG. 5B. Here, the reference numeral 143 indicates the upper mold of the three-dimensional bending press 10.

Next, the operation of the wire separating and conveying device configured as described above will be explained.

The wire fed into the passage 100 is pooled within the passage 100 by the rising portion 109 of the lower separation arm 103. At this time, as shown in FIG. 1, the walking beam 115 of the autoloader 9 for three-dimensional bending press approaches the cam lever 107, which is a cooperative lever, and pushes the cam lever 107 counterclockwise. One wire is separated from the passage 100 by the rising portion 106 of the upper separating arm 101 which is swung counterclockwise against the spring 108 and is biased counterclockwise by the spring 105, and is separated from the inclined surface. 112, it falls onto the wire receiving part 130 of the first wire transport claw 127 waiting below.

One wire 2 that has fallen onto the first wire receiving portion 130A is held by the magnet 131 so that it does not fall off. After the wire rod 2 is held by the wire rod receiving part 130A, the swinging cylinder 122 as a swinging device
(1) Wire rod receiving part 130 of wire rod conveying claw 127
The entire stroke is extended until A is located above the intermediate receiving part 138. After that, the air cylinder 119 for forward/backward motion as a forward/backward drive device is energized, (2)
The entire stroke is extended until the wire transport claw 127 reaches the position of the intermediate receiving part 138. Here, (3) the swinging air cylinder 122 is retracted. As a result, the wire 2 on the wire transport claw 127 is transferred to the intermediate receiving part 13.
8 and is held. Then, (4) the air cylinder 119 for advancing and retracting movement is retracted to return the walking 115 to the position shown in FIG.

The walking beam 115 repeats such a series of movements, and the wire 2 transferred and held by the intermediate receiving part 138 is transferred to the wire transfer claw 128 by the next movement shown in (1). Then, by the movements shown in (2) and (3), the wire rod is transferred from the wire conveying claw 128 to the intermediate receiving part 139 and held there.

Moreover, the wire rod held in the intermediate receiving part 139 in this way is moved by the wire rod conveying claw 12 by the movement shown in (1).
9 and held, and by the following movements (2) and (3), it is placed on the lower die 142 of the press 10 at the next stage.

Furthermore, after the wire rod 2 placed on the lower mold 142 is pressed, the wire rod 2 placed on the lower die 142 is moved by the next movement (1).
It is moved to and held by the unloader arm 134 which reaches the position A shown by the two-dot chain line in FIG. Then, by the following movements (2) and (3), the unloader arm 134 reaches the position shown by the two-dot chain line in FIG. The upper wire rod 2 hits the left end surface of the lower die 142 of the press device 10 and falls onto a chute (not shown).

Walking beam 1 with reference to Figures 6A to 6E.
15 exercises will be explained in detail.

(1) First position (FIG. 6A) In the first position of the walking beam 115, the cam roller 116 biases the cooperative lever 107, and one wire 2 is removed from the wire separating device 8 in the first position.
The process moves on to the wire receiving portion 130A. In this position, the second wire receiving part 130B is in a position corresponding to the first intermediate receiving part 138, the third wire receiving part 130C is in a position corresponding to the second intermediate receiving part 139, and the lower mold 142 of the press device 10 is The unloader arm 134 is arranged correspondingly.

(2) Second position (Fig. 6B) Air cylinder 122 for rocking motion in the first position
The second position is the position where the walking beam 115 is extended and the second wire receiving part 130B swings the walking beam 115 to above the first intermediate receiving part 138.

If the second and third intermediate receiving portions 138 and 139
If the wire rod 2 is held in the second and third wire rod receivers 1 when the walking beam 115 swings from the first position to the second position,
30B and 130C, respectively, and if the wire rod 2 is placed on the lower die 142 of the press device 10, the wire rod 2 after pressing is transferred to the unloader arm 134 at this time.

(3) Second position (FIG. 6C) At the second position, the traveling air cylinder 119 is extended, and the walking beam 115 is moved to a position where the first wire receiving part 130A corresponds to the first intermediate receiving part 138. The position where is moved approximately horizontally is the third position. Note that at this time, the third wire receiving portion 13
If the wire rod 2 is held in the wire rod receiver 130C at 0C, the wire rod 2 will move along the guide 141 as shown by the two-dot chain line in the figure while moving to the third position.

(4) Fourth position (Fig. 6D) Air cylinder 122 for rocking motion in the third position
The fourth position is the position where the walking beam 115 is swung to the same level as the first position.
This is the position of

If the first to third wire receiving parts 130A to 130
If the wire rod 2 is held at C, the wire rod 2 will move between the first and second intermediate receivers 13 when the walking beam 115 swings from the third position to the fourth position.
8,139, and the press device 10
The mold is transferred onto the lower mold 142 of the mold.

(5) Fifth position (Fig. 6E) Retract the traveling air cylinder 119 at the fourth position, and move the walking beam 1 to the first position.
The position to which 15 is moved is the fifth position, which is exactly the same as the first position. If the wire rod 2 after pressing is held by the unloader arm 134, when moving from the fourth position to the fifth position, the wire rod 2 will hit the left end surface of the lower mold 142 and cause a shoot (not shown) to occur. to fall.

As described above, in one embodiment of the present invention, a plurality of supplied wire rods are separated one by one, and then the wire rods are transported and supplied to a press device, and the wire rods after being pressed are discharged from the press device. This makes it possible to work safely and quickly.

In addition, it is also possible to have only one intermediate receiving part 138, 139 and to provide two wire rod receiving parts 130A to 130C accordingly.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention, Figure 2 is a side view showing one embodiment of the present invention;
3 and 3 are enlarged side views showing details of the wire separation device, FIG. 4 is a perspective view showing the connection between the unloader arm and the walking beam, and FIG. 5A is a view taken from line V-V in FIG. 1. FIG. 5B is a plan view, FIG. 5B is a side view thereof, and FIGS. 6A to 6E are diagrams for explaining the movement of the walking beam. 8...Wire separation device, 10...Press device, 9
8,99...work shoot, 100...aisle,
101, 103...Upper and lower separation arm, 107...
Collaborative lever, 115...Walking beam, 1
16... Collaborative lever abutting member, 118... Roller, 119... Air cylinder for advance/retreat movement, 122
...Air cylinder for rocking motion, 127-129...
...Wire rod separation claw, 130A to 130C...Wire rod receiver, 134...Unloader arm, 138, 13
9...Intermediate receiving part, 142...Lower mold, 143...Upper mold.

Claims (1)

[Claims] 1. In a wire rod separation and conveyance device that separates a plurality of supplied wire rods one by one using a wire rod separation device, and transports and discharges the wire rods to the next stage press device using a walking beam, the wire rods supplied to the wire rod separation device are Upper and lower work chutes forming a passage for accumulation, upper and lower separation arms rotatably provided on the upper and lower work chutes and biased by springs so that their tips are mutually closed, and the lower separation arm. a cooperative lever that is fixedly fixed and provides an opening/closing movement to the vertical separation arm; and a cooperative lever that is attached to the rear end of the walking beam and contacts the cooperative lever as the walking beam advances and retreats, and opens and closes the separation arm via the cooperative lever. A wire separating and conveying device characterized by being provided with a cooperative lever abutting portion that provides motion.