JPH057284B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Industrial Application Field The present invention relates to a coil spring supply device for supplying a large number of coil springs one by one without entangling them with each other.

(2) Conventional technology Conventionally, such a supply device has been used, for example, in the
It is known from Publication No. 47957.

(3) Problems to be Solved by the Invention In the conventional device described above, a large number of coil springs housed in the hopper control the rotation of the rotor blades disposed at the bottom of the hopper and the flow of air from the rotor blades. The water is suspended and stirred by the ejection, loosening the entangled coil springs, and leading out from the outlet facing the upper part of the hopper.

However, since the outlet is formed by a cylindrical body inserted into the hopper and guides the coil spring in the axial direction, the efficiency of guiding the coil spring to the outlet is poor.

Moreover, in the case of closed-end type coil springs, their axes intersect when they are entwined with each other, so if the outlet is slightly larger than the outer dimensions of the coil spring, they will be discharged from the outlet in a tangled state. However, in the case of an open-end type coil spring, since the shafts are the same and the coil springs are entwined, the coil springs may be discharged from the outlet in the entangled state.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a coil spring supply device that can efficiently supply coil springs one by one, regardless of whether the spring is an open-end type or a closed-end type. With the goal.

B. Structure of the Invention (1) Means for Solving the Problems According to the first device of the present invention for achieving the above object, a stirring chamber for floating and stirring a large number of coil springs and both outside thereof are provided. At the bottom of the hopper, which is separated from the discharge chamber by a partition wall, an air jet plate having air jet holes is fixedly installed facing the stirring chamber,
An air conduit is connected to blow out air from the air outlet into the hopper, and at the top of the hopper,
A ceiling member is formed by interconnecting the lower ends of a pair of guide parts that are inclined toward the discharge chamber while moving away from each other toward the top, and is opposed to the air jet plate to define the upper end of the stirring chamber. A rectangular outlet with an opening dimension slightly larger than the outer dimensions of the coil spring is provided in the partition wall to connect the stirring chamber and the discharge chamber. an inclined guide section inclined to the side;
A guide plate, which is connected to the upper end of the inclined guide part and is smoothly curved, and which is connected to the lower edge of the outlet port, is fixed to the partition wall facing the stirring chamber.

According to a second device of the present invention for achieving the above object, in addition to the configuration of the first device of the present invention, the bottom of the discharge chamber is formed by an inclined plate to allow the coil spring to slide down. A chute having a notch larger than the outer diameter at the middle lower part and connected to the inclined plate is connected to the hopper, has a closing plate at one end that can close the notch from below, and has a balance weight at the other end. A rotating rod having a notch is supported by the chute so as to be rotatable between a position where the notch is closed by the closing plate and a position where the notch is opened, and the weight of the balance weight is The spring is configured to rotate the closure plate to the open position when loaded.

(2) Effect According to the configuration of the first device of the present invention, a large number of coil springs housed in the stirring chamber are suspended and stirred by the air jetted from the air jetting hole, and are released from mutual entanglement. Furthermore, the coil springs are guided to the outlet by the ceiling member and the guide plate, and are discharged one by one from the outlet to the discharge chamber. At this time, when an open-end type coil spring entwined with the same axis is placed on the curved guide part connected to the outlet, the center of gravity is lifted from the curved guide part and falls downward from the curved guide part. Therefore, it is avoided as much as possible that the particles are discharged from the outlet in a tangled state.

Further, according to the configuration of the second invention device, the above-mentioned first device
In addition to the action of the invented device, when the coil spring discharged from the discharge chamber via the chute is in a tangled state, the closing plate rotates to the position to open the notch, so that the coil spring is discharged in a tangled state. This can be more reliably prevented from occurring.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings. First, in FIGS. 1 and 2, the hopper 1 includes a stirring chamber 2 and a discharge chamber 3 outside the stirring chamber 2. , 3, and a large number of coil springs 4 housed in the stirring chamber 2 are suspended and stirred by the air flow jetted from below, and are discharged from the outlet ports 5, 5... after being disentangled from each other. The pieces are taken out one by one from the chutes 6, 6 through the chambers 3, 3.

By the way, when the coil spring 4 is of a closed-end type, the axial directions intersect and intertwine, as shown in FIG. Also, if the coil spring 4 is an open end type,
As shown in Fig. 4, they are intertwined with the same axis.

The hopper 1 includes a rectangular cylinder part 8 having a square cross section with a pair of side walls facing each other as partition walls 7, and a lid plate 9 that closes the upper end of the rectangular cylinder part 8 so as to be openable and closable.
In order to define a discharge chamber 3, 3 between a pyramidal part 10 which becomes narrower as it goes downward and is connected to the lower end of the square tube part 8, and the outer surfaces of the partition walls 7, 7, a hole is formed on the outer surface of the partition walls 7, 7. It consists of box-shaped parts 11, 11 that are fixed,
It is erected on the floor by four support legs 12, 12, .

An air jetting plate 14 having a plurality of air jetting holes 13, 13, . Further, one end of an air conduit 15 is connected to the bottom of the hopper 1, and the other end of this air conduit 15 is connected to an air supply source (not shown). As a result, the air guided through the air conduit 15 is ejected upward into the hopper 1 from the air ejection holes 13, 13, . A pair of guide portions 1 are provided on the lower surface of the lid plate 9 and are inclined so as to move away from each other toward the top and approach the partition walls 7, 7.
Ceiling member 1 formed by interconnecting the lower ends of 6 and 16
The upper end of 7 is fixed. Square tube part 8, pyramid part 10,
The air blowing plate 14 and the ceiling member 17 define the stirring chamber 2, and the air blowing plate 14 and the ceiling member 17 face each other.

For example, a pair of rectangular outlet ports 5, 5 connecting the stirring chamber 2 and the discharge chamber 3 are bored in the intermediate portions of the partition walls 7, 7 that define both sides of the stirring chamber 2. The opening dimensions of these outlet ports 5, 5, . . . are set to be slightly larger than the outer dimensions of the coil spring 4. Further, the box-shaped portion 11 is connected to the upper edge of each outlet 5 and fixed to the outer surface of the partition wall 7, and plate members 18 and 1 extending between the outlet port 5 and the box-shaped portion 11 are attached to both side edges of the outlet 5.
8 are arranged in succession. This prevents the coil spring 4 from being caught on the partition wall 7 at the outlet 5.

The distance between the outer surfaces of the box-shaped portion 11 and the partition wall 7 is set to be larger than the diameter of the coil spring 4. Further, an inclined plate 19 forming the bottom of the discharge chamber 3 is fixed on the inner surface of the box-shaped part 11, and the coil spring 4 guided from the outlet 3 to the discharge chamber 3 slides down on the inclined plate 19. . Further, the box-shaped portion 11 is provided with discharge ports 20 at positions corresponding to the lower ends of the inclined plate 19 for discharging the coil springs 4 that have slid down on the inclined plate 19.

In FIG. 5, guide plates 21, 21 are fixedly installed on the inner surface of each partition wall 7, 7. As shown in FIG. This information board 21 is
The stirring chamber 2
a curved guide part 23 connected to the upper end of the inclined guide part 22 and smoothly curved and connected to the lower edge of the outlet 5;
It consists of The curved guide portion 23 is formed with its center angle α being about 90 degrees. Moreover, the curved guide section 23
The relationship between the horizontal distance L from the center angle of 45 degrees with the partition wall 7 to the lower edge of the outlet 5 and the axial length l of the coil spring 4 is set to L≒l~0.5l. be done.

6 and 7, chute 6, 6 connected to discharge port 20 is provided in both box-shaped parts 11, 11 of hopper 1 in series. These chute 6, 6 are inclined on the extension of the inclined plate 19 in the discharge chamber 3, and are connected to the box-shaped parts 11, 11, and their cross-sectional shape is formed into a semicircular shape with an open top. be done. Also, a stopper 2 is provided at the tip of each chute 6, 6.
4 are fixed respectively.

A notch 25 is provided in the middle lower part of each chute 6, and a closing plate 26 capable of closing each notch 25 is located between a position where the notch 25 is closed and a position where the notch 25 is opened. It is placed so that it can be rotated. The closing plate 26 includes a circular arc portion 27 that can be flush with the lower inner surface of the chute 6, and a circular arc portion 27 that can be flush with the lower inner surface of the chute 6.
It is integrally formed with a fall guide part 28 that hangs downward from the side edge of the circular arc part 27 near the center thereof, and is fixed to one end of a rotating rod 29. Further, a pair of brackets 30, 30 are fixed to the intermediate lower surface of the chute 6 at intervals in the longitudinal direction, and a support shaft 31 parallel to the chute 6 is rotatably supported by these brackets 30, 30. supported. The support shaft 31 is integrated with the rotation rod 29 so as to intersect in a cross shape, and the rotation rod 29, that is, the closing plate 26, rotates around the axis of the support shaft 31. Moreover, a balance weight 32 is attached to the other end of the rotation rod 29 so that its position along the axis of the rotation rod 29 can be adjusted.
When more than one coil spring 4 is mounted, the closing plate 26 is set to be rotated to a position where the notch 25 is opened, as shown in FIG.

Chute 6 from notch 25 to stopper 24
For example, five coil springs 4 can be stored in sequence on the top, and in the chute 6 in the vicinity of the notch 25, for example, five coil springs 4 can be stored after passing through the notch 25. A sensor 34 is provided for detecting.

When the coil spring 4 placed on the closing plate 26 falls due to the rotational action of the rotation rod 29, a tray 33 for receiving the fallen coil spring 4 is placed on the two support legs 12, 12. It will be permanently installed.

Next, to explain the operation of this embodiment, when taking out the coil springs 4 one by one, a large number of coil springs 4 are put into the stirring chamber 2 with the cover plate 9 open, and the cover plate 9 is opened. Keep 9 closed.

Next, when the supply of compressed air from the air supply source is started, air is ejected into the stirring chamber 2 from the plurality of air ejection holes 13, 13..., and each coil spring 4 is stirred while floating upward, thereby preventing mutual entanglement. It will be canceled. Moreover, the air flow is controlled by both guide portions 1 of the ceiling member 17.
6, 16 and is guided to the outlet ports 5, 5..., and is also guided to the outlet ports 5, 5... by the guide plates 21, 21, so the coil spring 4 is guided by the air flow to the outlet ports 5, 5... , 5...

The coil spring 4 that has reached the outlet ports 5, 5... passes through the outlet ports 5, 5... and is led out to the discharge chambers 3, 3. At this time, when the coil spring 4 is a closed-end type, as shown in FIG. Since it has a large opening size,
The entangled coil spring 4 cannot pass through the outlet ports 5, 5, . . . and falls from the guide plates 21, 21 to the lower part of the stirring chamber 2. Further, when the coil spring 4 is of an open-end type, as shown in FIG. 4, since the coil springs 4 are entwined with the same axis, it is possible to pass through the outlet ports 5, 5, . . . with the coil springs 4 entwined. However, when the open-end type coil spring 4 is entangled and placed on the curved guide portion 23 of the guide plates 21, 21, the center of gravity G is lifted from the curved guide portion 23 as shown in FIG. The coil spring 4 in the entangled state tilts and slides so that its center of gravity G is aligned with the curved guide portion 23. Therefore, the coil spring 4 guided to the outlet ports 5, 5... is in a single, untangled state, and the coil spring 4 guided to the discharge chambers 3, 3 from the outlet ports 5, 5... is in a single state. The spring 4 slides down on the inclined plate 19 and slides on each chute 6 from the discharge port 20.

When only one coil spring 4 slides on the chute 6, the closing plate 26 does not open, so the coil spring 4 slides on the chute 6 until it comes into contact with the stopper 24. The sensor 34 indicates that the five coil springs 4 have passed through the notch 25 in this way.
When detected, the supply of air from the air conduit 15 is stopped, and the discharge of the coil spring 4 is also temporarily stopped. Therefore, during this time, the coil spring 4 on the chute 6 is recovered and the supply of air from the air conduit 15 is restarted.
supply will be resumed.

By the way, the coil spring 4 is released from each outlet 5, 5...
It is difficult to completely prevent the coil springs 4 from being drawn out into the discharge chamber 3 in a tangled state, and it is conceivable that the coiled spring 4 remains tangled and slips down on the chute 6. However, a notch 25 is provided in the middle of the chute 6, and the closing plate 25 that closes the notch 25 opens downward when two or more coil springs 4 are placed on it. The coil spring 4 in which the
fall on top. Therefore, it becomes possible to reliably take out the coil spring 4 in a single state.

C. Effects of the Invention As described above, according to the first device of the present invention, the bottom of the hopper is provided with a stirring chamber for floating and stirring a large number of coil springs and a discharge chamber outside both of the stirring chambers separated by a partition wall. An air blowing plate having air blowing holes is fixedly installed facing the stirring chamber, and an air conduit is connected to blow air from the air blowing holes into the hopper. A ceiling member is arranged opposite to the air jet plate to define the upper end of the stirring chamber, and is formed by interconnecting the lower ends of a pair of guide portions that are inclined in a direction that moves away from each other toward the discharge chamber and approaches the discharge chamber. A rectangular outlet with an opening size slightly larger than the outer dimensions of the coil spring is provided in the partition wall to connect the stirring chamber and the discharge chamber, and the outlet port is provided in the partition wall with a rectangular outlet opening that connects the stirring chamber and the discharge chamber. A guide plate consisting of an inclined guide section that is inclined to the side, and a curved guide section that is connected to the upper end of the inclined guide section, is smoothly curved, and is connected to the lower edge of the outlet, and faces the stirring chamber and faces the partition wall. It has a relatively simple structure because it is fixedly attached to the coil spring, and regardless of whether the coil spring is a closed-end type or an open-end type, it is possible to separate coil springs that are intertwined with each other and efficiently separate them one by one. It becomes possible to take it out.

According to the second device of the present invention, in addition to the configuration of the first device, the bottom of the discharge chamber is formed by an inclined plate to allow the coil spring to slide down, and has a notch larger than the outer shape of the coil spring. A chute provided at the lower intermediate portion and connected to the inclined plate is connected to the hopper, and has a closing plate at one end that can close the notch from below, and a rotary rod having a balance weight at the other end. The balance weight is rotatable between the position where the notch is closed by the closing plate and the position where the notch is opened, and the balance weight is supported by the chute when two or more coil springs are placed on the closing plate. Since the plate is set to rotate to the open position, in addition to the effects of the first invention device, it is possible to reliably eliminate the coil springs that occasionally slip down on the chute while remaining entangled. It is possible to further ensure the supply of coil springs one by one.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a partially cutaway perspective view, Fig. 2 is a sectional view taken along the line - - of Fig. 1, and Fig. 3 shows the state of entanglement of a closed-end type coil spring. Figure 4 is a diagram showing the intertwined state of open-end type coil springs, Figure 5 is an enlarged view of the V section in Figure 2, Figure 6 is an enlarged plan view of the chute, and Figure 7 is Figure 6. FIG. 8 is a sectional view corresponding to FIG. 7 showing the open state of the closing plate. 1... Hopper, 2... Stirring chamber, 3... Discharge chamber,
4... Coil spring, 5... Outlet, 6... Chute, 7... Partition wall, 13... Air outlet, 14...
Air blowing plate, 15...Air conduit, 16...Guiding section, 17...Ceiling member, 19...Slanted plate, 21...
... Guide plate, 22 ... Inclined guide section, 23 ... Curved guide section, 25 ... Notch, 26 ... Closing plate, 29 ...
...Rotating rod, 32...Balance weight.

Claims (1)

[Scope of Claims] 1. An air ejection plate having air ejection holes is provided at the bottom of the hopper, which has a stirring chamber for floating and stirring a large number of coil springs and a discharge chamber on both sides separated by a partition wall. It is fixedly installed facing the stirring chamber, and an air conduit is connected to blow out air from the air outlet into the hopper.At the top of the hopper, air pipes are connected to the air conduit, which separates from each other as they go upwards and enter the discharge chamber. A ceiling member, which is formed by interconnecting the lower ends of a pair of guide parts that are inclined in a direction adjacent to each other, is arranged opposite to the air jet plate to define the upper end of the stirring chamber. A rectangular outlet having an opening dimension slightly larger than the above dimensions is provided between the stirring chamber and the discharge chamber, and includes an inclined guide section which is inclined inwardly as it goes upward from the bottom of the partition wall, and the inclined guide section. The coil is characterized in that a guide plate is fixed to the partition wall facing the stirring chamber, the guide plate being connected to the upper end of the part and smoothly curved, and the curved guide part being connected to the lower edge of the outlet port. Spring feeding device. 2. At the bottom of the hopper, which has a stirring chamber for floating and stirring a large number of coil springs and a discharge chamber on both sides separated by a partition wall, an air blowing plate with air blowing holes faces the stirring chamber and is fixed. At the same time, an air conduit is connected to blow out air from the air outlet into the hopper, and at the top of the hopper, there are pipes that slope away from each other toward the discharge chamber as they move upward. A ceiling member formed by interconnecting the lower ends of a pair of guide parts is arranged opposite to the air blowing plate to define the upper end of the stirring chamber, and a ceiling member with a diameter slightly larger than the external dimensions of the coil spring is provided on the partition wall. A rectangular outlet having an opening size of A guide plate is fixed to the partition wall facing the stirring chamber, and the bottom of the discharge chamber is sloped to allow the coil spring to slide down. A chute formed of a plate and having a notch larger than the outer shape of the coil spring at the middle lower part and connected to the inclined plate is connected to the hopper, and has a closing plate at one end that can close the notch from below. A rotating rod having a balance weight at the other end is rotatably supported by the chute between a position where the notch is closed with the closing plate and a position where the notch is opened. A coil spring supply device characterized in that the device is configured to rotate a closing plate to an open position when two or more coil springs are placed on the plate.