JPH0732490Y2 - Coil spring alignment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a coil spring aligning device that supplies a so-called coil spring formed by winding a wire into a coil while aligning and feeding the coil spring.

[Conventional technology]

The applicant of the present invention, as disclosed in Japanese Utility Model Laid-Open No. 62-63127,
A coil spring aligning device for aligning and supplying coil springs while untangling them has already been proposed.

As shown in FIGS. 3 and 4, this coil spring aligning device has a parts feeder main body (1), a entanglement spring separation container (6), and an aligning bowl (14) as main components.

The parts feeder main body (1) has a lower vibrating body (4) fixedly mounted on a base (2) via a vibration-proof rubber (3), and a predetermined number of circumferential positions on the lower vibrating body (4). An upper vibrating body (5) supported through a plurality of supporting leaf springs (not shown) arranged at an angle, and an electromagnet core is provided on one of the lower vibrating body (4) and the upper vibrating body (5). , And an exciter (not shown) provided with a movable core corresponding to the electromagnet core on the other side through a predetermined gap, and is moved by intermittently exciting the electromagnet core of the exciter. An intermittent suction force is applied to the core, and due to this suction force and the repulsive elastic force of the support plate spring, vibrations of opposite phases are generated between the lower vibrating body (4) and the upper vibrating body (5).

Entangled spring separation container (6) is the part feeder body (1)
A cylindrical container body (7) is vertically fixed to the lower vibrating body (4), and a rotary disc (9) is rotatably driven by a drive motor (8) at the bottom of the container body (7). In addition to the above, the spring disc blade (10) is provided on the upper surface of the rotating disc (9), and a plurality of spring protrusion windows (11) are provided at appropriate positions in the circumferential direction at the upper open end of the container body (7). The ceiling plate (13) is attached via the spacer (12).

The alignment bowl (14) is concentrically arranged on the outer periphery of the upper end of the entanglement spring separation container (6), and the parts feeder main body (1) is provided.
Attached to the upper vibrating body (5) of the above, and is composed of an annular bottom plate (15) and a cylindrical body (16) integrally extending upward from the outer peripheral edge thereof, and the bottom plate is provided on the inner peripheral surface of the cylindrical body (16). (15)
A spiral alignment passage (17) having a starting end is formed on the top. A sorting mechanism (not shown) for removing from the discharge passage (18) a entangled spring having two or more entangled springs in the middle of the discharge passage (18) connected to the end of the spiral alignment passage (17) of the bowl (14). ) Is provided. Further, the container body (7) is provided with a entangled spring recovery passageway (19) for guiding the entangled spring removed from the carry-out passageway (18) into the entangled spring separation container (6) by the sorting mechanism.

In the above structure, the coil springs (a) (a) ... Randomly supplied into the bowl (14) are spirally aligned by the vibration of the bowl (14) in the reciprocating direction due to the parts feeder body (1). ) Is transported upwards while being aligned in a line from the start end to the alignment passage (1
At the end of 7), it moves to the unloading passageway (18) and thereafter it is transported along it. The coil springs (a), (a), etc., which are conveyed along the carry-out passage (18) are intertwined with each other, but the entangled spring (a ') is provided in the middle of the carry-out passage (18). The sorting mechanism removes the entangled spring recovery passageway (19) from the carry-out passageway (18), and only unentangled coil springs (a), (a), etc. pass through the sorting mechanism and are aligned in a line to form a desired position. Is supplied to.

On the other hand, the entanglement spring (a ') removed from the entanglement spring recovery passageway (19) from the carry-out passageway (18) in the sorting mechanism is sequentially fed into the entanglement spring separation container (6) from the entanglement spring recovery passageway (19). Be done. The entanglement spring (a ') that has entered the entanglement spring separation container (6) moves violently by the rotation of the rotating disk (9) provided at the bottom of the entanglement spring separation container (6), and rotates during the movement. Since it collides with the disc (9) and the spring blasting blade (10) and expands and contracts, or bends, the entanglement can be released at this time. The coil springs (a) (a) ... which are untangled become lighter and the spring elasticity becomes larger than that in the entangled state, so the coil springs (a) (a) ...
… Bounces greatly when the entanglement is released, and the spacer (1) is attached to the upper open end of the container body (7) of the entangled spring separation container (6).
It collides with the ceiling plate (13) attached via 2) and is automatically re-loaded into the bowl (14) from the spring pop-out window (11) of the spacer (12) in order, and again used for the alignment operation.

[Problems to be solved by the device]

By the way, in the above-mentioned conventional coil spring alignment device, the entangled spring separation container (6) is attached to the lower vibrating body (4) of the parts feeder body (1), and the entangled spring separation container (6) is cantilevered. Entangled in the state Spring recovery passage (1
9) is fixedly supported. Generally, the bowl (14) mounted on the lower vibrating body (4) and the upper vibrating body (5) vibrates in opposite phases via the support leaf springs, and the ratio of their amplitudes is inversely proportional to the moment of inertia. Therefore, in the conventional structure, the entanglement spring separation container (6) and the entanglement spring recovery passageway (19) supported in this cantilever state always vibrate according to the amplitude and the moment of inertia of the bowl (14). Therefore, the bowl (14)
When the amplitude and the moment of inertia become large, the cantilevered entanglement spring recovery passageway (19) receives a large acceleration and resonates, which is unnecessary for the lower vibrator (4) of the parts feeder body (1). Such irregular vibration is applied, and this irregular vibration propagates to the bowl (14) through the supporting leaf spring and the upper vibrating body (5) and hinders the progress of the coil springs (a) (a) .... There is a coil spring (a) (a)
There was a problem that the ordered supply of ... was significantly hindered.

Moreover, since there is a gap between the container body (7) of the entangled spring separation container (6), the rotating disc (9) and the spring blasting blade (10), a small coil spring (for example, wire diameter (0.2 mm in diameter, 1.0 mm in outer diameter) bites into the rotating disk (9) and impinges on the rotary motion of the blades (10), and causes problems such as defective springs. Even if it can be applied, it has a drawback that it cannot be applied to a small coil spring.

Furthermore, since the top surface of the ceiling plate (13) is formed flat,
The coil spring (a) that jumps up vigorously and rides on the ceiling plate (13) accumulates without rolling down, and the coil spring (a) accumulated on the ceiling plate (13) is manually put into the bowl (14) again. It required work.

[Means for Solving the Problems]

The present invention has been made in view of the above problems, and provides a coil spring aligning device capable of effectively exhibiting the aligning and supplying ability of a parts feeder, and the gist thereof is an annular portion and A base composed of a boss portion extending upward from the inner peripheral edge of the annular portion, and a lower vibrator having a large mass supported by the annular portion of the base via a vibration-proof rubber, and an upper vibrator having a small mass via a supporting leaf spring. Supporting an electromagnet core on one of these lower and upper vibrators,
On the other hand, a cylindrical container main body is attached to the part feeder main body which is opposed to the electromagnet core with a gap and has a movable core attracted thereto, and a cylindrical container main body is attached to the boss portion of the base, and the upper surface thereof is attached to the bottom of the container main body. Enclosed on the outer circumference of the upper end of the entangled spring separation container, which is provided with a rotating disk having spring blasting blades, and a ceiling plate is provided at the upper open end of the container body with a gap through which the coil spring can protrude. An aligning bowl that is arranged concentrically and is attached to the upper vibrating body of the parts feeder main body, and has a spiral aligning passage having a starting end on the bottom surface on the inner peripheral surface of the cylindrical portion, and spiral aligning of the aligning bowl. A carry-out passage connected to the end of the passage and having a sorting mechanism for excluding two or more entangled entangled springs in the middle, and a tangled spring separation container that is fixedly supported by the above-mentioned sorting mechanism from the conveying passage. It removed the entangled entangled spring recovery passage for introducing the spring separator tangled springs and lies in the configuration with.

[Action]

In such a structure, the entanglement spring separation container and the entanglement spring recovery passage fixedly supported by the entanglement spring separation container and the entanglement spring recovery passage are completely separated from the parts feeder main body. Without vibrating, 100% of the parts feeder body can be aligned and supplied.

〔Example〕

An embodiment of the coil spring aligning device according to the present invention will be described below with reference to FIGS. 1 and 2. The same parts as those of the conventional apparatus shown in FIGS. 3 and 4 are designated by the same reference numerals, and the duplicated description will be omitted.

1 and 2, the base (2) has an annular portion (2
It consists of b) and the boss (2a). Reference numeral (20) is a entangled spring separation container attached to the boss portion (2a) of the base (2), which has a cylindrical shape on the boss (2a) integrally extending upward from the inner peripheral edge of the annular portion (2b) of the base (2). The container body (21) is fixed vertically, and a rotary disc (23) rotatably driven by a drive motor (22) is provided at the bottom of the container body (21) and the rotary disc (23 ) Is provided with a spring blow-off blade (24). (26) is a bottomed cylindrical ceiling plate having a diameter larger than that of the container body (21) provided at the upper part of the container body (21) with the opening facing downward, and at the upper end of the container body (21), ,
It is attached via a plurality of support columns (25) arranged at appropriate positions in the circumferential direction. Further, a cap plate (27) having a substantially conical shape is mounted on the ceiling plate (26). And the container body (21)
Entangling the spring (a ') near the lower part of the spring separation container (20)
The base of the entangled spring recovery passageway (28) for guiding the inside is fixedly supported. Further, as shown in FIG. 2, a flange (23a) is provided on the upper end of the outer peripheral surface of the rotating disc (23),
The circumferential clearance between the container body (21) and the inner peripheral surface is formed to be the minimum clearance required for the rotation of the rotary disc (23), and the outer peripheral end surface (24a) of the spring blow-off blade (24). )
Is formed in an inclined shape. Further, the ceiling plate (26) is composed of a bottomed cylindrical body having a diameter larger than that of the container body (21), and an annular space (29) in which the coil spring (a) can protrude from the upper end edge of the container body (21). ) Has been formed.

The coil spring (a) in the coil spring aligning device according to the present invention is aligned and supplied by the coil spring (a) untangled by the rotation of the rotating disk (23) provided at the bottom of the entanglement spring separation container (20). 3 and 4 except that it is ejected from the annular space (29) between the upper end of the main body (21) and the lower end of the ceiling plate (26) to the bowl (14). The same is true and the description is omitted.

By the way, according to the above-described coil spring aligning device of the present invention, since the entanglement spring separation container (20) is directly attached to the boss portion (2a) of the base (2), the entanglement spring separation container (20).
The entangled spring recovery passage (28) fixedly supported by this and the entangled spring recovery passage (28) can be completely separated from the parts feeder main body (1) to eliminate vibration, which causes irregular vibration in the alignment bowl (14). It is possible to make full use of the aligned supply capability of the parts feeder main body (1) without adding.

Further, in this coil spring aligning device, a flange (23a) is provided on the upper end of the outer peripheral surface of the rotating disc (23) to allow the container body (2
The circumferential clearance between the inner peripheral surface of (1) and the inner surface of the rotary disk (2
In addition to forming the minimum clearance required for the rotation of 3) and the outer peripheral side end surface (24a) of the spring blow-off blade (24) being inclined, the container body (21) and rotating disc (23) can be formed even with a small coil spring. ) And the spring blow-off blade (24) are not caught.

Further, since the cap plate (27) having a substantially conical shape is mounted on the ceiling plate (26), even if the coil spring (a) rides up vigorously and jumps up, the tilt of the cap plate (27) causes the inside of the bowl (14) to fall. The coil spring (a) will not accumulate on the ceiling plate (26) by rolling down.

[Effect of device]

According to the present invention, the entanglement spring separation container and the entanglement spring recovery passage fixedly supported by the entanglement spring separation container are completely separated from the parts feeder main body so that the parts feeder main body has an alignment supply capacity of 100.
%, The coil springs can be aligned and supplied at a higher speed, and the environment can be improved by reducing noise. Further, while minimizing the circumferential clearance between the container body of the entangled spring separation container and the rotating disk,
Since the outer peripheral end surface of the spring skipping blade is formed in an inclined shape to prevent the coil spring from being caught between the container body, the rotating disk and the spring skipping blade, it is applicable to relatively small coil springs. The effect is obtained. Further, since the coil spring does not accumulate on the ceiling plate, it is possible to omit the conventional work of manually inserting the coil spring accumulated on the ceiling plate into the bowl.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a coil spring alignment device according to the present invention, and FIG. 2 is an enlarged view of a main part of a entangled spring separation container. FIG. 3 and FIG. 4 are a vertical sectional front view and a partially cutaway plan view showing a conventional coil spring alignment device. (1) …… Parts feeder main body, (2) …… Base,
(2a) ... Boss part, (2b) ... annular part, (3) ... vibration-proof rubber, (4) ... lower vibrating body, (5) ... upper vibrating body,
(14) …… Aligning bowl, (18) …… Unloading passage, (20)
...... Entangled spring separation container, (21) …… Container body, (23)…
… Rotating disk, (24) …… Spring-splitting blade, (25) …… Supporting pillar, (26) …… Ceiling board, (27) …… Board board, (28) ……
Entangled spring recovery passage, (29) ... annular space.

Claims (3)

[Scope of utility model registration request] 1. A support leaf spring for a base having an annular portion and a boss portion extending upward from an inner peripheral edge of the annular portion, and a lower vibrating body having a large mass supported on the annular portion of the base via a vibration-proof rubber. The upper vibrating body having a small mass is supported via the electromagnet core, and one of the lower vibrating body and the upper vibrating body is provided with an electromagnet core, and the other is provided with a movable core which is opposed to the electromagnet core with a gap and is attracted thereto. A cylindrical container main body is attached to the parts feeder main body and the boss portion of the base, and a rotary disk having spring-flicking blades is provided on the upper surface of the bottom of the main body of the container, and a coil spring is attached to the upper open end of the container main body. A entangled spring separation container provided with a ceiling plate with a gap that can be popped out, and is concentrically arranged on the outer periphery of the upper end of the entangled spring separation container and attached to the upper vibrating body of the parts feeder body. An aligning bowl in which a spiral aligning passage having a start end on the bottom surface is provided on the inner peripheral surface of the cylindrical portion, and the aligning bowl is connected to the end of the spiral aligning passage, and a entangled spring having two or more intertwined springs is excluded. And a entanglement spring recovery passage for introducing the entanglement spring fixedly supported by the entanglement spring separation container and excluded from the conveyance passage by the entanglement spring into the entanglement spring separator. Coil spring alignment device. 2. The circumferential clearance between the container body of the entangled spring separation container and the rotating disk is formed to be the minimum clearance required for the rotation of the rotating disk, and the outer peripheral end surface of the spring skipping blade. The coil spring aligning device according to claim 1, wherein the coil spring is formed in an inclined shape. 3. The coil spring aligning device according to claim 1, wherein a substantially conical cap plate is mounted on the ceiling plate of the entangled spring separation container.