JPH0638020Y2 - Hopper for vibration feeder - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to the structure of a hopper of a vibrating feeder, and in particular, when powder particles are filled into the hopper, the powder particles do not fly up or flow freely. The present invention relates to the structure of a hopper that is designed to prevent the above.

[Conventional technology and its problems]

 FIG. 5 shows the structure of a conventional vibrating feeder.

The vibrating feeder having the configuration shown in the figure is a comparatively small vibrating feeder for discharging a medicine or the like. This vibrating feeder intermittently supplies electric power to the electromagnetic section 31 arranged in the vibrating feeder main body, so that the suction plate 36 fixed to the hopper 32 side.
Is intermittently attracted to the electromagnetic side, and when not attracted, the leaf spring
The elasticity of 33a and 33b causes it to return to its original position so that vibration is applied in accordance with the frequency of the supplied power.

In the vibrating feeder having this structure, first, the powder and granules are supplied and filled into the hopper of the vibrating feeder before the discharging operation of the powder and granules. In this case, the hopper 32
When 34 is dropped and supplied, depending on the type of powder or granular material, the powder or granular material that has fallen up may be blown out of the hopper, or may be partially discharged through the trough 35. For this reason, the filling work of the granular material must be done carefully, and even if it is done carefully, when the container is discharged into the hopper, the granular material layer in the container collapses and a large amount of granular material is suddenly discharged. There is a possibility that it will fall into the hopper, and it is not possible to completely prevent the occurrence of the above situation by merely performing careful work. Especially, when the vibrating feeder is stopped, the granular material falls freely through the trough, which results in a significant decrease in the accuracy of discharging the granular material by the vibrating feeder. In that case, it cannot be tolerated.

[Means for solving problems]

The present invention is configured to solve the above-mentioned problems, and one or more shock absorbing plates are directly arranged in the hopper of the vibrating feeder, or indirectly by disposing the shock absorbing plate unit in the hopper. In addition, the buffer plate is preferably a perforated plate having a large number of small holes.

[Action]

Since one or more buffer plates are arranged in the hopper of the vibrating feeder so as to be substantially orthogonal to the falling direction of the granular material, the granular material falling toward the hopper at the time of filling the granular material is The buffer plate attenuates the falling energy and gently drops and accumulates on the bottom of the hopper. Therefore, due to the large amount of falling energy, the situation in which the powder or granular material falls and is discharged by itself through the trough does not occur.

〔Example〕

Embodiments of the present invention will be specifically described below with reference to the drawings.

In FIGS. 1 and 2, 1 is a hopper attached to a vibrating feeder main body (not shown), and 2 is a trough connected to the hopper 1. Reference numerals 3a and 3b are buffer plates installed in the hopper 1, and both buffer plates are arranged so as to be substantially parallel to the hopper bottom surface 1c. Of these, the upper buffer plate 3a has one side fixed to the rear wall 1b of the hopper 1, and the lower buffer plate 3b.
Is fixed to the front wall 1a of the hopper 1 on one side so as to face the upper buffer plate 3a, whereby the trough 2
Is arranged so as to cover the upper part of the opening 2a. Further, of the upper and lower buffer plates 3a, 3b, the buffer plate tip portions 3a 'located opposite to each other.
And 3b 'are arranged so as to project from each other on the buffer plate side of the other in the falling direction of the powdery or granular material 34 supplied to the hopper 1, or to be located substantially on the same line.

A large number of sub-holes are formed in the upper and lower buffer plates 3a and 3b, so that each buffer plate is formed as a perforated plate.

When the powder and granules 34 are dropped and supplied to the hopper 1 having this configuration, the powder and granules 34 hit the buffer plates 3a and 3b, the drop energy is attenuated, and the powder and granules 34 are gently dropped and deposited on the bottom surface 1c of the hopper 1. Further, the upper and lower cushioning plates 3a, 3b are arranged such that their tip portions 3a ', 3b' substantially overlap each other in the powder falling direction and cover the hopper bottom surface 1c, so that the powder particles 34 directly contact the hopper bottom surface 1c. It never falls. Also, the lower buffer plate 3b
Is disposed so as to cover the opening 2a of the trough 2, so that a situation in which powder particles are arbitrarily discharged to the outside through the trough 2 does not occur due to the synergistic effect with the reduction of the fall energy.

Further, since each of the buffer plates 3a, 3b is a perforated plate, the powder particles remaining on the buffer plate after the completion of the powder or granular material filling work, the buffer plate as a porous plate is sieved by the vibration during the powder particle discharging process. It acts as a (sieve) and gradually falls into the hopper 1. Therefore, it is not necessary to limit the filling amount of the granular material 34 to the lower part of these buffer plates, and it is possible to fill a large amount so as to cover the upper buffer plate 3a. It is also possible to further advance the structure of the perforated plate to form each buffer plate in a net shape.

Further, since the buffer plates 3a and 3b are arranged so as to project into the space inside the hopper 1 as shown in the figure, the hopper 1
The buffer plate itself also vibrates when vibrating, and as a result, each buffer plate 3a,
3b also acts as a kind of stirring member, and can be expected to be discharged well even if a large amount of powder or granules is filled or if it is easily solidified.

FIG. 3 shows a second embodiment of the present invention.

In this structure, the buffer plate unit main body is made of wire or the like, and the buffer plate is fixed to the unit main body to form the buffer plate unit.

In the figure, reference numeral 4 is a unit main body formed by bending with a wire, and is configured corresponding to the internal shape of the hopper 1 of the vibrating feeder, and is housed and fixed in the hopper 1. 4a is a locking portion for fixing the unit main body 4 to the hopper when it is stored in the hopper. By locking the locking portion 4a at the upper end edge of the hopper 1 when it is stored in the hopper 1. The unit 4 is fixed to the hopper 1. The buffer plates 3a, 3b are fixed to the unit main body 4, and by fixing the unit main body 4 in the hopper 1, each buffer plate is indirectly connected to a predetermined portion of the hopper via the unit main body. It will be fixed.

With this configuration, after the discharging work of the powder and granules is completed, the buffer plate unit can be taken out of the hopper and easily and completely cleaned, and the powder and granules remaining in the buffer plate portion are filled with powder next. It can be easily prevented from being mixed into the granules.

In the illustrated construction, the constituent material of the unit is a wire, but the constituent material of the unit is not limited to the wire, and a plate material similar to the material forming the hopper (small one is a large paper such as paper or plastic). It is also possible to firmly construct the object with a stainless plate or the like).

FIG. 4 shows still another configuration.

Reference numerals 5 and 6 denote cushion plate constituent members, of which the cushion plate member 5 is a support plate 5a that is in close contact with the front wall 1a of the hopper 1 and is connected to the support plate 5a and is substantially orthogonal to the support plate 5a. It consists of a buffer plate 3b. Similarly, the buffer plate structure 6 also includes a support plate 6a that is in close contact with the rear wall 1b of the hopper 1, and a buffer plate 3a that is connected to the support plate 6a and that is substantially orthogonal to the support plate 6a. A support plate 5a for these buffer plate structures 5 and 6,
By fixing the 6a to the front wall 1a and the rear wall 1b of the hopper, the buffer plates 3a and 3b integrated with the support plate are fixed to predetermined parts in the hopper 1. The support plate can be fixed to the wall surface of the hopper by a bonding means such as a double-sided adhesive tape or an adhesive in the case of a small hopper, and by a connecting means such as a bolt in the case of a relatively large hopper. Good to do.

Further, in the illustrated structure, the support plates 5a and 6a of each buffer plate structure are formed into a substantially trapezoidal shape to match the shape of the front wall or the rear wall of the hopper, so that the position of the buffer plate in the hopper is naturally determined. However, if the support plate is formed in a shape that does not correspond to the wall shape, such as a rectangle, the height of the buffer plate in the hopper can be set freely.

[Effects] The present invention, as concretely shown in the configuration above, indirectly by providing one or more buffer plates to the hopper of the vibrating feeder or by disposing a buffer plate unit or the like in the hopper. Since it is arranged in the above, the buffer plate reduces the falling energy of the powder particles that are dropped and filled in the hopper. As a result, the powder and granules that are filled will gently fall and accumulate on the bottom of the hopper, preventing a large amount of powder and granules from flying up when the powder and granules are filled, or the powder and granules being arbitrarily discharged through the trough. can do.

Further, since each buffer plate vibrates in response to the vibration of the hopper, it also has a function of stirring the packed powder or granules, so that the hopper may be packed with a large amount of powder or granules, or the powder that originally has poor fluidity. Even particles can be discharged well.

[Brief description of drawings]

FIG. 1 is a partially broken perspective view of a vibrating feeder hopper showing a first embodiment of the present invention, FIG. 2 is a vertical sectional view of the vibrating feeder shown in FIG. 1, and FIG. 3 is a second embodiment. FIG. 4 is a perspective view of a buffer plate unit shown in FIG. 4, FIG. 4 is a perspective view of a buffer plate assembly and a hopper showing a third embodiment, and FIG. 5 is a vibrating feeder showing a filling state of powder particles in a conventional hopper for a vibrating feeder. It is a longitudinal cross-sectional view of a hopper for use. 1 …… Hopper 1a …… Hopper front wall 1b …… Hopper rear wall 1c …… Hopper bottom surface 2 …… Trough 2a …… (Trough) opening 3a …… Upper buffer plate 3b …… Lower buffer plate 3a ′… … Tip of upper shock absorber 3b ′ …… Tip of lower shock absorber 4 …… Shock absorber unit 5, 6 …… Shock absorber structure 5a, 6a …… Support plate 30 …… Vibrating feeder main body 34 …… Powder particles body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-287626 (JP, A) JP-A-61-229722 (JP, A) Actually open 62-71125 (JP, U) Actual-open Sho-50- 5367 (JP, U) Actual public 43-7538 (JP, Y1) Actual public 54-36472 (JP, Y2)

Claims (3)

[Scope of utility model registration request] 1. A trough for discharging powder particles is provided at the bottom,
A hopper for a vibrating feeder configured to be attached to a vibration source, wherein the hopper (1) has an inner portion that is substantially parallel to the hopper bottom surface (1c) and partially covers the inner portion of the hopper (1). The upper and lower two-stage buffer plates (3a) and (3b) are respectively arranged, and one side of the lower buffer plate (3b) is located on the front wall (1a) of the hopper so that the opening (2a) of the trough (2). The upper cushioning plate (3a) is arranged on one side of the rear wall (1b) of the hopper, and the upper and lower cushioning plates (3a), (3b) are arranged in the falling direction of the granular material (34). 2. A hopper for a vibration feeder, characterized in that it is configured to substantially cover the bottom surface (1c) of the hopper. 2. A buffer plate unit comprising a unit main body (4) which is housed and fixed in a hopper (1), and buffer plates (3a) and (3b) are fixed to the unit main body (4). And the buffer plate unit is housed and fixed in the hopper (1) to form the buffer plates (3a), (3b).
The hopper for a vibration feeder according to claim (1), characterized in that the hopper is indirectly arranged at a predetermined position in the hopper (1). 3. A buffer plate constructing body (5) and (6) is formed by forming buffer plates (3b) and (3a) connected to support plates (5a) and (6a), respectively. Construct (5)
The support plates (5a) and (5b) of (6) and hopper (1)
A utility model registration request, characterized in that each cushion plate (3b), (3a) is arranged at a predetermined position in the hopper (1) by fixing it to the front wall (1a) and the rear wall (1b) of In the range (1), the hopper for the vibration feeder.