JP3528858B2 - Bolt feeder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt feeder for feeding different types of bolts using the same delivery path.

[0002]

2. Description of the Related Art Conventionally, as a device for delivering different types of bolts, there has been known a bolt supply device in which a conveying chute is provided in each part feeder which accommodates each bolt. In such an apparatus, when switching the type of bolt, it is common to close the transfer chute corresponding to the bolt being supplied and open the transfer chute of a new parts feeder to start the supply. Is.

[0003]

However, the method of providing the transfer chute for each type of bolt has the advantage that the interruption time is shortened when the models are switched and the work efficiency is improved, but There is a drawback that the device becomes large. Therefore, there has been a demand for a device that can be downsized and that can shorten the interruption time when switching models.

[0004]

In order to solve the above problems, the present invention provides a bolt supply capable of supplying different types of bolts housed in a plurality of parts feeders using the same delivery path. Configured the device. In other words, a bolt receiving part is provided between the parts feeder and the entrance of the delivery route so that the bolts sent from the parts feeder selected by the bolt receiving part are received and transferred to the delivery route, and the delivery route is provided in the middle of the delivery route. A switching mechanism was provided, and this delivery path switching mechanism was provided with a stock section for temporarily stocking bolts during supply interruption. Then, the stock portion is stocked with a quantity of bolts which does not cause work interruption even when the type of the supply bolt is changed.

[0005]

By supplying different types of bolts using the same delivery path, the size of the device can be reduced. In addition, the delivery path switching mechanism is equipped with a stock section that temporarily stocks the bolts during supply interruption, and by stocking a quantity of bolts that does not cause work interruption even when the type of supply bolt is switched to this stock section. Even if the bolt type is changed, it can be dealt with immediately and work interruption time does not occur.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a bolt supply device of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view of the entire supply device, and FIG. 2 is a side view of the same.

The bolt supply device of the present invention is constructed as a device for supplying a bolt for fastening a cap to a large end of a connecting rod, which is an engine part of an automobile, for example, and as shown in FIG. It has a first parts feeder A and a second parts feeder B for accommodating bolts.

The parts feeders A and B are provided with delivery passages 1a and 1b for delivering the respective bolts a and b. The delivery passages 1a and 1b hook the heads of the respective bolts a and b. It is configured so that it can be conveyed in a two-row aligned state in a suspended posture.

A bolt delivery mechanism 2 for receiving the head bolts a, b and delivering them to the bolt receiving portion 3 is provided at the downstream ends of the delivery passages 1a, 1b. It is movable from the line connecting the tips of 1a and 1b toward the entrance of the delivery section 4 on the extension line.

The delivery section 4 is provided with a chute member 5 arranged so that the inlet side is high and the outlet side is low, and four rows of delivery paths 6a to 6d provided in the chute member 5, and these delivery paths 6a to 6d are provided. Reference numeral 6d is a groove which allows the heads of the bolts a (b) to be hooked and hung so that the bolts a (b) can be slid down in an aligned state. In the vicinity of the entrance of the delivery section 4, the bolts a (b) of the bolt receiving section 3 are attached to the delivery paths 6a-6.
A pushing pusher 7 for pushing into d is provided.

A delivery path switching mechanism 8 is provided on the downstream side of the delivery path 4. The delivery path switching mechanism 8 is for switching operation when the type of the bolt a (b) is changed.
The left and right movable switching member 9 is provided with two sets of four rows each, and a total of eight rows of passages 9a to 9d and 9A to 9D.

A catcher portion 11 for receiving the supply of the bolt a (b) is provided further downstream of the delivery path switching mechanism 8, and the bolt a (b) received by the catcher member 11 is assembled to a part. go.

Now, the structure of the delivery paths 1a and 1b will be sequentially described.

The delivery path 1a (1b has the same configuration) is provided with two rows of groove grooves in which the respective bolt shaft portions can be inserted, and the groove width of the groove grooves is wider than that of the bolt shaft portion. The bolt head is hooked by making it narrower than the head. Then, the bolts are aligned in a row in the groove and are oscillated by, for example, a vibrator (not shown) or the like to feed the bolts in small pieces in the column direction.

The head of the bolt a (b) is shown in FIG.
4 which is a view in the XX direction and FIG. 5 which is a partially enlarged view of FIG. 1, the ellipse is formed in a plan view and the semicircle in the short circle direction of the ellipse is tapered in a side view. By making the passage interval of the part that guides the bolt head on the upper part of the groove substantially match the short circle width of the bolt head, the ellipse direction of the bolt head becomes the conveying direction. I am sending it to you.

As shown in FIG. 3, which is a partially enlarged view of FIG. 2, the bolt delivery mechanism 2 includes a pair of elevating members 12 facing the end of each groove of the delivery path 1a (1b), and elevating and lowering them. Each lifting / lowering drive source 13 for driving the member 12 up and down is provided.

The upper part of these lifting members 12 is
A groove communicating with the groove of the delivery passage 1a (1b) is provided so that the tip bolt a (b) fed from the delivery passage 1a (1b) can be received.

A motor 14 for rotating the elevating member 12 about a vertical axis is provided below the elevating member 12. That is, it is for adjusting the phase of the taper head of the bolt a (b) in the scraped-off direction, and when the lifting member 12 is lifted by the driving of the lifting driving source 13, the detection as shown in FIG. The tool 15 detects the taper direction, and if the taper direction is opposite, the motor 14 rotates the lifting member 12 by 180 degrees to match the phase.

The bolt receiving portion 3 is, as shown in FIGS. 3 and 5, a slide member 1 slidable with respect to a base 16.
7, a first plate member 18 provided upright on the slide member 17, and a first plate member 18 provided on the front surface of the first plate member 18 and movable horizontally by a predetermined stroke with respect to the first plate member 18. 2 plate members 19 are provided,
The motor 20 (FIG. 5) is actuated to slide in the lateral direction of FIG.

Further, the first plate member 18 has a structure shown in FIG.
4 grooves 18a to 18d are provided, and the second plate member 19 also has 4 grooves 19a.
.About.19d are provided, and the intervals between the two left and right columns are made to match the intervals between the respective groove grooves of the delivery path 1a (1b).

Further, stoppers 22 and 23 as shown in FIG. 5 are provided at both ends in the sliding direction of the bolt receiving portion 3, and these stoppers 22 and 23 are end surfaces of the second plate member 19. The stopper 24 on one side is provided with a spring 24, and the position of the spring 24 is regulated.

That is, when the bolt receiving portion 3 moves to the parts feeder A side, the end surface of the second plate member 19 initially comes into contact with the spring 24 and stops, and the first plate member 18 moves for the remaining sliding stroke. By doing so, the grooves 18a to 18d, 19a of both plate members 18, 19 are formed.
~ 19d out of phase, the first plate member 18
The positions of the two rows of grooves 18a and 18b are
We are trying to face 12 in front.

Therefore, when the bolt a is fed in such a state, the bolt a strikes the second plate member 19 and is held in the grooves 18a and 18b of the first plate member 18, and at this time, as shown in FIG. The pushing member 25 shown in FIG. 2 is pushed by the drive source 26 so that the bolt a lifted up is pushed into the grooves 18 a and 18 b of the first plate member 18. As will be described later, after being pushed into the two grooves 18a, 18b, the remaining two grooves 18c,
The bolt a is pushed into the 18d, and four bolts a at the same time.
Hand over.

On the other hand, when the bolt receiving portion 3 moves toward the delivery portion 4, the end surface of the second plate member 19 initially comes into contact with the stopper 22 and stops, and further the first plate member 18 slides for the rest. By moving the stroke, the grooves 18a to 18d, 19a to 1 of both plate members 18 and 19 are moved.
9d is in phase.

For this reason, if the bolt a is pushed out from the rear in this state, the bolt a will be removed from the second plate members 19a to 19a.
It is sent into the delivery paths 6a to 6d through d.

As will be described later, when the bolt b of the parts feeder B on the other side is supplied, the bolt receiving portion 3 is stopped in front of the feeding passage 1b, but at this time, the first plate Since the grooves 18a to 18d of the member 18 and the grooves 19a to 19d of the second plate member 19 need to be out of phase with each other, for example, the bolt receiving portion 3 is temporarily stopped by the stopper 24.
It is moved to the full side to shift the phase, and then returned by a predetermined stroke.

Next, the pushing pusher 7 will be described.

The push-in pusher 7 is, as shown in FIG.
The drive source 28 attached to the base 16 and the drive source 28
The push-out plate 29 that can be moved back and forth by means of the push-out plate 29, and the four pins 30, ...
It has ... Then, the upper pin 30 simultaneously presses the upper part of the bolt and the lower pin 31 simultaneously presses the lower part of the bolt.

Next, the delivery section 4 will be described.

As described above, the chute member 5 of the delivery section 4 is provided with four rows of delivery paths 6a to 6d.
The components a to 6d have substantially the same configuration as that of the delivery path 1a (1b).

That is, the bolt shaft is inserted into a groove having a groove width that is wider than the bolt shaft portion and narrower than the bolt head portion, and the bolt head portion is hooked on this to slide down by its own weight. . In addition, the passage spacing of the part that guides the bolt head above the groove is roughly matched with the short circle width of the bolt head, and the ellipse direction of the phase-matched bolt head is aligned with the conveying direction to shift the phase. I try not to rank.

Next, the delivery path switching mechanism 8 will be described.

The delivery path switching mechanism 8 includes a drive source 33 fixed to the base 16 as shown in FIG. 6 which is a partially enlarged view of FIG. 2 and FIG. 8 which is a ZZ direction view of FIG. A slide body 35 that horizontally slides on the guide rail 34 by the drive source 33 is provided, and the switching member 9 is fixed to the slide body 35.

The switching member 9 is arranged adjacent to the chute member 5 at the same angle of inclination and has two sets of four rows of groove grooves 9a connected to the delivery paths 6a to 6d of the chute member 5. .About.9d and 9A to 9D are provided so that the line grooves 9a to 9d and 9A to 9D can be switched when the switching member 9 moves left and right.

Further, on both sides of the switching member 9, a detection tool 36 is provided at a position which is located at a predetermined distance from the downstream end, and the detection tool 36 detects the presence or absence of the bolt a (b) and the detection signal. A sent from the upstream side by
The supply of (b) is controlled.

That is, the detection tool 36 is the bolt a (b).
By continuously supplying the bolt a (b) until it is confirmed that the presence of the bolts a (b), the groove 9a-9d on the downstream side of the detection tool 36 is always
Make sure that bolts a (b) are fully filled in (9A to 9D).

Next, the catcher section 11 will be described.

As shown in FIG. 6 and FIG. 7 which is a YY direction view of FIG. 6, the catcher portion 11 is a drive source 37 attached to the base 16 and a support which can be raised and lowered by the drive source 37. The plate 38 and the end plates 3 mounted on the front surface of the support plate 38 and below the mounting plate 46 laterally at predetermined intervals.
, And the guide bar 4 fixed to the upper part of the mounting plate 46
, A pair of holding claws 42, 42 attached to the pivot shaft 41 of the support plate 38 and having a lower end portion opened and closed are provided between the end plates 39 ,.

The lower ends of the holding claws 42, 42 closely face the extension lines of the grooves 9a-9d (9A-9D) of the switching member 9, and the holding claws 42, 42 are provided.
Is located on the extension line of the groove grooves 9a to 9d on one side, the end plates 39, ... Are located on the extension line of the groove grooves 9A to 9D on the other side, or vice versa.

A spring 43 for urging in the closing direction is stretched between the holding claws 42, 42, and pins 44, 44 project from the rear surface of the holding claws 42, 42, respectively. A taper block 45 fixed to the base 16 faces below the pins 44, 44.

The taper block 45 has a narrow upper width and a wide lower part. Therefore, when the holding claws 42, 42 descend and the pins 44, 44 come into contact with the taper block 45, the holding claws are held. 42 and 42 open so that they can be pushed apart.

When the holding claws 42, 42 are closed,
Between the holding claws 42, 42, a bolt shaft portion can be inserted, and a groove into which the bolt head can be hooked is formed.

Below the holding claw 42, a receiving component 47 for receiving the bolt is positioned.

The operation of the bolt supply device as described above will be described.

First, when supplying the bolt a accommodated in the parts feeder A shown in FIG. 1, the bolt a is sent out in two rows through the delivery path 1a, and the two leading rows of the sent two rows are fed.
The pair of elevating members 12 of the bolt delivery mechanism 2 receives the bolt a of the book.

The elevating member 12 having received the bolt a is lifted by the elevating drive source 13 shown in FIG. 2, and the phase is detected by the detector 15. Then, the motor 14 is actuated as necessary to rotate 180 degrees.

Then, when the pushing member 25 advances, the bolt a is pushed into the two grooves 18a and 18b of the first plate member 18 of the bolt receiving portion 3.

When the pushing of the two bolts a is completed, the bolt receiving portion 3 shown in FIG. 5 is moved leftward by a predetermined stroke by the operation of the motor 20, and the first plate member 18 is moved.
The two remaining grooves 18c, 18d of the lifting members 12, 12
In front of. Then, the bolt a is pushed into the remaining two grooves 18c and 18d by the same procedure as described above.

When the bolt receiving portion 3 receives the four bolts a, the motor 20 operates and moves toward the delivery portion 4. Then, after the second plate member 19 abuts on the stopper 22, the first plate member 18 further moves slightly, so that the grooves 18a to 18 of the first plate member 18 are made.
d, the grooves 19a to 19d of the second plate member 19, and
The delivery paths 6a to 6d of the chute member 5 are aligned.

Then, when the push-in pusher 7 is actuated and the four bolts a are simultaneously pushed into the delivery passages 6a to 6d, the bolts a slide down in the delivery passages 6a to 6d by their own weight.

At this time, the switching member 9 shown in FIG. 1 is set in such a position that the four rows of the groove grooves 9a to 9d communicate with the delivery paths 6a to 6d. Therefore, the bolt a has the groove groove 9a. ~
It advances toward the catcher portion 11 through 9d, enters the holding claws 42, 42 as it is, and is held.

When the holding claws 42, 42 hold the respective bolts a, the holding claws 42, 42 are driven by the drive source 37 shown in FIG.
42 is lowered, the pin 44 and the taper block 45 interfere with each other, the holding claws 42, 42 are opened, and the bolt a is received by the receiving part 47.
To be delivered to.

While the catcher portion 11 is descending, the bolt a in the rear row is sequentially fed into the delivery passages 6a to 6d, and the head bolt a fed into the groove grooves 9a to 9d of the switching member 9 is attached to the mounting plate. 46 Because it is blocked by the front,
A predetermined number of bolts a are stocked in the groove 9a to 9d. Then, the supply on the upstream side is cut off when the detection tool 36 is full. That is, the bolt a is always fully stocked in the grooves 9a to 9d on the downstream side of the detection tool 36.

When changing the type of bolt to be handled, the catcher portion 11 is lowered and each groove 9 is moved.
The drive source 33 is actuated and the switching member 9 is moved horizontally while regulating the head bolt a in a to 9d. That is, the predetermined number of bolts a are moved while stocked in the grooves 9a to 9d. At this time, the front surface of each groove 9a to 9d is moved toward the end plate 3.
Since 9 is blocked, there is no risk that bolt a will come off. Further, on the front surface of the holding claws 42, 42, the other groove 9A-
9D will come.

Therefore, in this state, the catcher section 11
, The front surface of the groove 9a to 9d of the original bolt a remains blocked by the end plate 39, and the holding claws 42, 42 face the front surface of the groove 9A to 9D and the new bolt b. Is started to be supplied.

That is, in the inside of the groove 9A-9D newly facing the front surface of the holding claws 42, 42, a predetermined number of groove 9A-9D downstream of the detection tool 36 have already been processed in the same procedure as above. Since the bolt b is filled, the supply can be started immediately after switching the switching member 9.

Then, while supplying the previously stocked bolt b, switching to the upstream delivery path 1b,
Also, the position of the bolt receiving portion 3 is changed, and the supply system from the parts feeder B is prepared.

That is, the amount of bolts temporarily stocked in the grooves 9a to 9d (9A to 9D) is interrupted until the supply operation is completed after the switching work accompanying the model change on the upstream side is completed. It is set to a sufficient amount so as not to cause.

[0059]

As described above, in the bolt supply device of the present invention, the same delivery path is used for supplying different types of bolts, so that the device does not become large and can be compactly assembled. Moreover, since the delivery path switching mechanism is equipped with a stock section that can stock bolts in an amount that does not cause work interruptions, it is possible to supply bolts from the beginning when the delivery path switching mechanism is activated due to a model change. It can be done without interruption of work.

[Brief description of drawings]

FIG. 1 is a plan view of the device.

FIG. 2 is a plan view of the same.

FIG. 3 is a partially enlarged view of FIG.

4 is a XX direction view of FIG.

5 is a partially enlarged view of FIG.

FIG. 6 is a partially enlarged view of FIG.

7 is a YY direction view of FIG.

8 is a ZZ direction view of FIG.

[Explanation of symbols]

3 bolt receiving section 6a, 6b, 6c, 6d Delivery route 8 Delivery route switching mechanism 9 Switching member 9a, 9b, 9c, 9d Partial groove for stock 9A, 9B, 9C, 9D Part of the stock groove A, B parts feeder a, b bolt

─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP-A-58-52109 (JP, A) JP-A-4-75910 (JP, A) JP-A-2-295814 (JP, A) JP-A-64- 51234 (JP, A) Actual development 62-116014 (JP, U) Actual development 63-135154 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65G 47/14 101 B65G 11/02 B65G 47/78

Claims (2)

(57) [Claims] 1. A bolt supply device adapted to supply different types of bolts housed in a plurality of parts feeders using the same delivery path, wherein the device is provided between the parts feeder and the delivery path inlet. A bolt receiving section for receiving the bolts of the selected parts feeder and sending the bolts to the delivery path, and a delivery path switching mechanism provided in the middle of the delivery path. A bolt supply device characterized by having a stock section for temporarily stocking bolts. 2. The bolt supply device according to claim 1, wherein the stock portion is stocked with an amount of bolts that does not cause a work interruption when the type of the supply bolt is switched.