JPS605487B2 - Vibration feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for storing, aligning, and transporting articles in an apparatus for processing and assembling articles.

Among the secondary vibrating feeders, as shown in FIG. 4, a container surrounding wall 5 having a spiral conveying path 4 in which the bottom 2 of the container 1 is attached to a vibration spring 3 is used as a feeder that achieves almost the same purpose as the present invention. There is a structure that is separated from and attached to the base 6.

The features of this follow-up example are as follows: - The vibration conditions applied to the container do not change much depending on the number of objects to be transported in the container 1, and the transport speed remains almost constant.

(b) Since the conveyed articles stored in the container 1 are less subject to unnecessary vibrations, noise is reduced and the articles are less likely to be damaged compared to an integrated container.

C. An auxiliary storage container 7 can be attached above the bottom 2 of the container in order to increase the amount of articles stored, eliminating the need for a mounting base such as a separate layer hopper. On the other hand, the problems with this conventional example are: (a) Since the bottom 2 of the container 1 is attached to the base 6 where reactionary vibrations occur, the vibrations cannot be eliminated, and objects placed on the bottom 2 also It is not possible to completely solve the noise and damage to goods caused by vibrations.

(b) If an auxiliary storage container 7 is installed, this storage container 7
A gap 8 formed around the circumference between the lower end of the surrounding wall and the bottom 2 of the container.
Because the conveyed articles are fed "topically" through the conveyance path 4 by the action of gravity, the The storage container 7 that has been removed becomes an obstacle.

- Gap 8' between the lower end of the enclosure wall of the storage container 7 and the bottom 2 of the container
Clogging may occur, making it difficult to adjust the gap to maintain an appropriate supply amount.

- Since the goods supplied from the storage container 7 are dependent on gravity, the supply amount is not constant and becomes unstable depending on the quantity of stored goods.

C. If the auxiliary storage container 7 is not installed, the storage capacity will be reduced. (2) Since the cover 9 is also attached to the base 6 where recoil vibrations are generated, the cover also generates noise due to the vibrations.

The present invention does not lose the above-mentioned features of the conventional example, but solves the problems of
This simultaneously solves problems in the use of the storage container, clogging and adjustment of transported articles, instability in the amount of supply, and noise caused by the cover.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. In the figure, 10 is an immovable substrate, 11 is a ring-shaped mass body, 12 is 3 to 4 vibration-proof rubbers attached to the mass body 11 and positioned on the base plate 10, and 13 is from the lower edge of the garden wall. Spiral conveyance path 1 provided toward the upper edge
4, the bottom of which is circularly cut out.

15 connects the mass body 11 and the transport container 1 at a predetermined angle.
Vibration springs provided in three places connecting 3 and 16
is a storage container, which is positioned on the immovable substrate 10 via three or four vibration-proof rubbers 17, and whose upper edge penetrates the bottom notch of the transport container 13 and comes into contact with the transport container 13. It extends to the height of the top surface of the bottom with a small gap.

Reference numeral 18 denotes the bottom plate of the storage container 16, which can be raised and lowered via a threaded bearing 20 that is engaged with a threaded ratchet 19 that rotates at its center.

The threaded shaft 19 has an unthreaded lower portion rotatably supported by a bearing 22 of a bracket 21 attached to the upper bottom surface of the storage container 16, and has a worm wheel 23 between the two bearings. An electric motor 24 capable of forward and reverse rotation is attached to the bracket 21, and a worm 25 is fixed to its output shaft, meshing with the worm wheel 23. 26 is a rotation stopper attached in the axial direction in contact with the inner wall of the storage container 16, and is attached to the bottom plate 18.
It engages with a notch provided on the outer periphery of.

27 is attached to the mass body 11 and is attached to the transport container 13
An electromagnet L 29 is an actuator for detecting the number of articles to be transported in the transport container 13, and an electromagnet L 29 is for transmitting vibrations through a suction block 28 attached to the lower surface of the transport container 13.
0 is the limit switch, and 31 is a fixed arm that is fixed to the outer wall of the immovable storage container 16.

32 is a mitt switch that detects the lowering limit of the bottom plate 18;
Reference numeral 33 denotes a limit switch for detecting the limit of rise, which is attached to the lower surface of the bottom plate 18 and also detects the upper notch of the detent 26.

34 is a tubular cover fixed to the outer periphery of the immovable substrate io.

With the above configuration, when the number of transported articles supplied from the storage container 16 in the transport container 13 decreases to a predetermined amount or less, the limit switch 30 detects and sets the amount through the actuator 29. time, motor 24
rotates, the bottom plate 18 rises to a predetermined height via the worm 25, the worm wheel 23 to the screw ratchet 19, the transported articles are pushed up, and the transport container 13 is replenished with a predetermined amount, and the spiral transport is carried out. The posture of the articles is sorted through the path 14 and sent to the outside of the transport container 13. The bottom plate 18 repeats the above-mentioned raising and stopping, and the articles are sequentially replenished into the transport container 13.Next, when the bottom plate 18 reaches its upper limit, lj
Detected by the mitt switch 33 and a switch (not shown) on the operating box for replenishing the article into the storage container.
is switched to reverse the electric motor 24, and after lowering the bottom plate 18 until the lowering limit is detected or until the mitt switch 32 detects it, the articles are replenished. Subsequently, the switch on the operation box is changed to start raising the bottom plate 18 as described above. As is clear from the above description, the present invention has the following remarkable effects.

1 By providing a separate, fixed storage container at the bottom of the transport container that transports the goods, the quantity of goods transported within the transport container can always be maintained constant, and changes in the vibration conditions applied to the transport container are minimized. The transport speed becomes stable.

2 Only the items in the transport container are subjected to vibrations, while the items in a completely fixed storage container, which is completely separated from the vibration system on an immovable substrate, are not subjected to unnecessary vibrations and are free from noise and vibrations. Damage is significantly reduced.

3. Since the storage container is not located outside or above the transport container, but is built into the bottom of the transport container, the vibration feeder can be easily incorporated into other equipment without any obstacles.

Further, it does not become an obstacle during rough installation, adjustment, and maintenance of a device for sorting the posture of articles on a conveyance path. 4 When supplying goods into a transport container, instead of using the gravity of the goods to discharge them downward through a gap, the goods are pushed upwards from a storage container provided below the bottom of the transport container and fed. This eliminates clogging at the article outlet.

In addition, the amount of supplies to be supplied is not adjusted by increasing or decreasing the area of the discharge port, but after detecting the number of products in the transport container using an actuator and a mitt switch, the bottom of the storage container is pressed for a set time or to a set height. Since it is supplied at a raised level, the adjustment operation is simple and the supply quantity is stable. 5. Since the cover is not attached to a mass body through which recoil vibrations are transmitted, but is attached to a completely fixed board, there is no noise from the cover caused by vibration.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a vibrating feeder according to an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line A-A, and Fig. 3 is a cross-sectional view taken along the line B-B.
4 is a sectional view of a conventional example. 10...Substrate, 11...Mass body, 12
...Vibration-proof rubber, 13...Transportation container, 15.
...Vibration spring, 16...Storage container, 18...Bottom plate, 34...Cover. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] 1. A vibrating conveyance unit consisting of a mass body and a conveyance container that is coupled to the mass body via a vibration spring and has a surrounding wall with a spiral conveyance path provided therein, and a bottom portion of the conveyance container. An article having a cylindrical storage container for accommodating an article with its upper end opening edge brought close to an opening provided in the storage container, and a bottom plate whose outer periphery slides into or comes close to the inner wall surface of the storage container and is movable up and down within the storage container. A vibrating feeder that is separated from a storage section and provided on an immovable substrate via a vibration isolator, and configured to sequentially replenish the articles stored in the article storage section into a vibrating transport container by raising the bottom plate. . 2. The vibratory feeder according to claim 1, wherein the substrate is provided with a cover that surrounds at least the mass body and the vibrating spring article storage section.