JPS6248444A - Vibration conveying type parts feeder - Google Patents

Abstract

PURPOSE:To early and surely attain a fit, by placing a ring member in a standby vibrating condition in a fixed position while dropping a headed shank member, with a shank leading, by a proper fitting attitude and position relation and fitting the shank member into the ring member by the automatic probing action in a fitting position. CONSTITUTION:A parts feeder, supplying a rivet 1 to a receiving cylinder 13 and holding the rivet 1 to be guided in a non-vibrative condition, drops the rivet 1, fitting its shank part 1b into a slit of a top plate 9, on a washer 2 in a standby state in a curved path 6a. Then the feeder, placing the washer 2 receiving vibration in a vibration conveying system and oscillating the washer 2 little by little for the shank part 1b placed almost in a fixed position, fits the shank part 1b to a hole 2a being automatically and easily probed by the automatic probing action. And the shank part 1b is fitted in a very short time further surely to the washer 2. The shank part 1b, fitted to the washer 2, drops on a standby washer 3 in a curved path 7a further through a slit of the curved path 6a, similarly being surely fitted in a very short time.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a vibration conveyance type parts feeder, more specifically, a vibration conveyance type parts feeder that combines a headed shaft and a wheel during conveyance. A device that performs rolling thread cutting on the foot of a tack to form a screw with a washer.
It is used when automatically feeding materials with washers.

(Prior Art) Conventionally, a vibration conveyance type parts feeder that feeds a baited shaft and a wheel in combination is known, for example, from Japanese Utility Model Application Publication No. 59-46642. As seen in the disclosed embodiments, this device has a shaft conveyance path for suspending and vibratingly conveying the headed shaft body, and a wheel conveyance path for vibratingly conveying the wheel body, which are disposed vertically and gradually By bringing them close to each other, the headed shaft body and the wheel body that are vibrated and conveyed are brought closer to each other and fit into each other, and thereafter, the assembled state is vibrated and conveyed by being suspended by the washer portion. Further, a contrivance has been made to form a chevron-shaped protuberance on the wheel conveyance path so that the wheel waits in an inclined position in which the shaft body is easily fitted.

(Problems to be Solved by the Invention) In the conventional method, the hanging end of the shaft body being suspended and conveyed and the wheel body being conveyed below fit together simply by vertically approaching each other without positioning in the conveying direction. Since they fit together, it is difficult for them to fit into each other and the success rate of combination is low.Also, the idea of providing the above-mentioned chevron-shaped raised part makes it easy for the hanging end of the shaft to fit into the wheel that reaches the raised part and waits in an inclined position. However, the hanging end of the shaft slides as if scanning over the wheel, and when it meets the hole in the wheel, it gets caught in it, and the wheel gets stuck in that catch 11.
Since the shaft is pulled by the pupil to get over the bulge and fit deeply into each other, the shaft may get caught in the hole of the wheel but come off without being able to bring the wheel along, or the shaft may become bulged. The next ring may not ride on the predetermined position of the protuberance even though it has reached the protrusion, and the probability of fitting is only about 60%.

If this were to meet the demand for combining two wheels with one shaft, the probability of fitting would drop to 36%, making it unusable.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a method for vibrating a wheel body at the end of a wheel conveyance path in which the wheel body is conveyed by vibrating in a lying state. A bent path is extended to prevent the progress of the vibrating conveyed object and hold it in a vibrating state, and the headed shaft body is received from above and moved downwards above the axis of the wheel body that is held in a vibrating state. A receiving cylinder to be guided is provided supported by a non-vibrating system, and the headed shaft body is conveyed by vibration so as to face the shaft side first, and is fed to the receiving cylinder from above, and a ring body under the receiving cylinder is placed on standby for vibration. a shaft transportation path to be fitted to the wheel; a detection means for detecting when the headed shaft reaches a fitting position with the wheel; and a detection means for receiving the combination of the headed shaft and the wheel from the bending path. It is characterized by comprising a combination body conveyance path that vibrates progressively, and a sending means that sends out the combination body of the wheel body and headed shaft body on the curved path to the combination body conveyance path based on the detection by the detection means. There is.

The wheel conveyance path and the bending path can be arranged above and below depending on the number of wheels to be fitted to the shaft, so that a plurality of wheels can be fitted to one shaft.

The shaft conveyance path has a pipe-shaped conveyance path at the end in order to ensure vibration conveyance in the lengthwise direction of the headed shaft and to feed the headed shaft from above to the receiver without causing it to fall off. It is desirable to do so.

The receiving tube holds the received headed shaft in an appropriate posture to fit into the wheel and guides it so that it falls.The receiving tube has a feeding port for the shaft head at the lower end, which is unrelated to the guidance. It will be done.

The detection means may detect the presence or absence of a specific portion located only with respect to the headed shaft that can be fitted into the wheel, and may employ various known methods such as a proximity switch or a photosensor.

The delivery means is suitably an air nozzle, but could also be by the same method as using a mechanical pusher.

Although it is desirable that the combination transport means vibrate and transport the baited shaft by suspending it by a washer part fitted thereto, it can be modified in various ways depending on other reasons.

(Function) The bending path directs the wheels vibratingly conveyed from the wheel conveying path almost at right angles to the vibration conveying direction, thereby increasing the
It receives the component force in the direction of the f1 road without generating it, prevents it from advancing together with the subsequent wheel body on the wheel conveyance path, and makes it stand by in a vibrating state. On the other hand, the receiver receives the headed shaft fed from the shaft transport path and transfers it onto the wheel that is waiting for vibration.
The wheel is dropped onto the axis of the wheel, which is in the correct posture and position, and held in a non-vibrating state, and only the waiting wheel vibrates in small increments. The ring body and the headed shaft body are fitted together with an automatic search function for the fitting position as shown in FIG.

The feeding means is activated when it is detected that the headed shaft body to be fed has reached the position where it would have fit into the wheel body parked on the bending path, that is, the position where it would have fit, The fitted combination body is sent out to the combination body conveyance path, and thereafter is vibrated and conveyed.

(Example) (Figure 1, Figure 2, Figure 3) In the case where it is applicable to a vibration conveyance type parts feeder using a spiral slope,
An example is shown in which a small-diameter conical spring washer 2 and a large-diameter flat washer 3 are combined with a rivet l as a headed shaft body.

As seen in FIG. 1, a spiral slope-type shaft body conveyance path 5 is formed on the inner circumference of the bowl 4 for vibratingly conveying the studs l, and a wheel body conveying path for vibratingly conveying the washers 2 and 3 is formed on the outer circumference of the bowl 4. A channel 6.7 is formed. The shaft conveyance path 5 is connected to the bowl 4
The rivets 1 inserted into the bowl 4 are conveyed along the inner circumference of the bowl 4 in the length direction, and a known reverse rivet removing section (not shown) provided in the middle moves the head 1a forward. While dropping the rivets 1 with the head 1a facing backward into the bowl 4, only the rivets 1 facing in a predetermined direction with the head 1a facing backward are vibrated and conveyed forward.
have.

The wheel body conveyance path 6.7 carries out vibration conveyance from individual parts storage sections provided on the outer periphery of the bowl 4, or separates the washers 2 and 3 which have been vibrated and conveyed from a single parts storage section according to their differences in size and shape, and then The wheel conveying path 6 of the washer 2 has a known reverse washer removal part (not shown) in the middle thereof, and removes the washer 2 whose conical convex surface faces downward. However, only the washer 2 in the proper orientation, with the conical convex surface facing upward, is vibrated and conveyed first.

At the end of each wheel conveying path 6.7, bent paths 6a, 7 are bent toward the center of the bowl 4 and approximately perpendicular to the vibration conveying direction thereof.
a is extended and receives the washer 2.3 vibratingly conveyed from the wheel body conveyance path 6.7 without generating any component force in the direction of the path, and the subsequent washer 2 on the conveyance path 6.7 following it. Along with .3, its progress is blocked and it is kept on standby in a vibrating state. The bent paths 6as and 7a connect the ends of the closed conveyance paths 6b and 7b, which are provided so as to align the washers 2.3 to be vibrated and conveyed at the end of each wheel body conveyance path 6.7 in a single line, respectively, to the bowl 4. The closed conveyance paths 6b, 7b and the bent paths 6a, 7a are formed by a block 8 made of laminated plate materials.
As seen in FIG. 2, openings 6c of the bending paths 6a, 7a;
The washers 2 and 3, which are connected integrally with the wheel conveying path 6.7 in an inclined state so that 7c is slightly upwardly inclined, reach the bending paths 6a and 7a and are kept in a vibrating state, vibrate to open the openings 6c and 7c. This is to prevent it from shifting to the 7C side or popping out.

a top plate 9 in which each bending path 6a, 7a is shaped like a pocket;
The partition plate 10 and the bottom plate 11 are formed with a shaft body escape ring 1-12 cut from the openings 6c and 7c side, and the foot portion 1 of the stud l is formed.
b is accepted and its sending is not hindered. Further, the inner edge of each slit 12 is formed as a sloped guide surface in the form of a slider so that the foot portion 1b of the stud l can easily slide into the slit 12.

Above the bending paths 6a, 7a, the tip of the pipe conveyance path 5a of the shaft body conveyance path 5 is located above the bending paths 6a, 7a. It is provided so as to be located on the axis of the washer 2.3 that is held in a standby position and open in almost the same direction as that of the washer 2.3, and to face from above on the axis of the washer 2.3 that is on standby. We try to supply it in good condition.

The top plate 9 covering the upper bending path 6a is provided with a receiving tube that receives the studs l supplied from the shaft conveyance path 5 and holds them in a fitting posture with respect to the washers 2.3 waiting in the bending paths 6a and 7a. 13 is supported via a height articulated leg 20 to a non-vibration system (not shown). This non-vibrating system may share a base equipped with a vibratory device for the bowl 4, for example.

The stud l supplied to the receiving tube 13 is held and guided in a vibration-free state, and when the foot portion 1b fits into the sulin l-12 of the top plate 9 and falls onto the washer 2 waiting in the bending path 6a, Since the washer 2 is vibrated little by little by the vibration of the vibration conveyance system with respect to the foot 1b which is in a fixed position, the fitting position between the foot 1b and the hole 2a is automatically and easily adjusted. The foot portion 1b that has been found and fitted into the washer 2 is securely inserted into the washer 2 in a short period of time.
Further, the bending path 7a passes through the slit 12 of the bending path 6a.
It falls onto the standby washer 3, and as in the case of washer 2, it fits securely in a very short time.

The stud 1 whose foot portion 1b is fitted into the holes 2a and 3a of the washer 2.3 has its foot portion 1b inserted into the slit 12 under the bending path 7a.
The head 1a is received by the edge of the slit 12 of the top plate 9.

Below the bending path 7a, the hole 2a of the washer 2.3,
A proximity switch 14 is provided for detecting the leg 1b that has either stuck into the rivet 3a or fallen into it, and detects when the rivet 1 has reached its mating position with each washer 2.3.

On the open side of the slit 12 at the lower end of the receiving tube 13, a delivery port 15 for the rivet head 1a received on the top plate 9 is formed, and air is blown into the interior from the slit 13a on the delivery port 15 side of the receiving container 13. An air nozzle 16 is provided for receiving ffj.
Blow air onto the stud 1 in la until it fits with the washer 2.3 and is detected by the switch 14, making sure that it does not fall off or lose its proper fitting posture and position with the washer 2.3. ing.

On the other hand, at the lower end of the receiving tube 13 and at the back of the bending path 7a,
Air nozzles 17.18 that blow air when the switch 14 detects the engagement of the stud 1 with the washer 2.3.
is connected, shared air is blown onto the station head 1a and the large-diameter washer 3 of the combination body of the rivet 1 and the wa-noshi + 2.3, and the combination body is made to continue from the bending paths 6a and 7a. The provided combination body is pushed out to a combination body feed path 19 that vibrates and conveys it.

The combination conveyance path 19 consists of upper and lower vibration conveyance paths 19a and 19b formed on the outer periphery of the bowl 4, both of which have a slot 7H9c for releasing the foot portion 1b of the stud 1, and the upper vibration conveyance path 19a is connected to the top plate. The lower vibrating conveyance path 19b receives the heads 1a of the rivets 1 of the combination body continuously fed out from the bending paths 6a and 7a, and vibrates and conveys the rivets 1 in a suspended manner.
is continuous with the bottom plate 11, receives both upper and lower washers 2.3 which are fitted with the foot portions 1b of the studs 1, and is vibrated and conveyed. The upper vibrating conveyance path 19a and the lower vibrating conveyance path 19b are brought close to each other, and the upper vibrating conveyance path 1
The washer 2 is vibrated and conveyed on the lower vibration conveyance path 19b.
．． 3 as shown in FIG. 1, and then the assembled body is suspended by washers 2 and 3 and transported to a desired location using frR motion.

If only one washer is combined with the stud 1, the head difference between the top plate 9 and the lower vibrating conveyance path 19b becomes small, and the stud l is dropped directly from the top plate 9 onto the lower vibrating conveyance path 19b. Even though
The stud 1 may fall sideways or separate from the fitted washers 2 and 3.
If falling off from the photographing 1 general transport path 19b does not occur, the upper vibration transport path 19a may be omitted.

In addition, it is possible to combine three or more wheels to one stud 1 using the same principle as described above, and each vibration conveyance system and the bending path for suppressing vibration conveyance can be used in each f ! It can be similarly applied to a straight type vibrating conveying parts feeder instead of the type using a helical slope.

(Effects of the Invention) According to the present invention, the bending path at the end of the wheel body conveyance path allows the wheel body that has been vibrationally conveyed to stand by in a vibrating state at a certain position,
The receiving cylinder receives the headed shaft body from the shaft conveyance path with the shaft side first, and drops it into the wheel body, which is waiting for vibration, in an appropriate mating posture and positional relationship, and also holds it in a vibration-free state. Since only the wheels waiting at the wheel vibrate in small increments, the two are fitted together with an automatic search for the fitting position, which seems to be done manually, so that the fitting is achieved very quickly and reliably. The probability and speed of fitting are greatly improved.

In addition, the fitting position of the shaft body with respect to the ring body is automatically detected, and the fitted combination body is immediately sent out from the bending path to the combination body conveyance path and conveyed by vibration, and the next receiving body is transported in the bending path. Since the fitting between the wheel body and the supply shaft can be started, together with the fast fitting speed, the fitting efficiency is also significantly improved.

Furthermore, even if multiple wheels are fitted to one shaft, by keeping each wheel on the same axis and waiting for vibration, it will produce almost the same effect as a combination with one wheel. I can do it.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a main part of a vibrating parts feeder using a spiral slope showing an embodiment of the present invention, Fig. 2 is a sectional view of the main part, and Fig. 3 is a sectional view of the main part. FIG. 2 is a partially sectional plan view.

Claims (1)

[Claims] (1) At the end of the wheel conveyance path that vibrates and conveys the wheel in a lying state, there is a bending path that is bent almost at right angles to the vibration conveyance direction to prevent the progress of the vibrating conveyed object and wait in the vibrating state. A receiver is installed above the axis of the wheel that is placed on standby for vibration, and is supported by a non-vibration system to receive the headed shaft from above and guide it downward. The shaft is conveyed by vibration so as to face the cylinder from above, and is fitted into the ring body under the cylinder where vibration is held, and the shaft body is moved to the position where the headed shaft body fits into the ring body. a detection means for detecting the arrival of the wheel body on the bending path; A vibrating conveyance type parts feeder comprising a feeding means for feeding a combined body with a headed shaft body to a combined body conveyance path.