JPH0133541Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a rotating disk type metering and feeding device for metering and feeding materials such as powder and granules.

(Prior Art) Conventionally, this type of rotating disk type metering and feeding device has been known, for example, in the Utility Model Publication No. 1983-11 filed by the applicant of the present application.
As described in Publication No. 11889, a hopper for storing materials is connected to a base, and a rotating disk is rotatably stored in the open space at the top of the base. It is known that a metering hole having a constant value is provided in a row at regular intervals.

(Problem to be solved by the invention) However, in the conventional device described above, the metering holes are formed in a row at regular intervals on the same circumference of the rotating disk, so that the measurement holes are formed in a row at regular intervals on the same circumference of the rotating disk. However, a fixed amount of material is dispensed from the discharge port periodically and intermittently (in a digital manner), which has the disadvantage that a fixed amount cannot be supplied continuously (in an analog manner) at any given moment.

For this reason, even if a timer or the like is used to meter and discharge a desired amount of time, a discharge amount that is proportional to the time cannot be obtained, and therefore it is difficult to measure an arbitrary discharge amount by time management. In other words, the instantaneous discharge amount could not always be kept constant and the metering accuracy was not sufficient.

Furthermore, when using this method to suction and supply material into the hopper using a vacuum pump, etc., outside air flows into the hopper from the exhaust port through the metering hole, significantly reducing the suction and transportation ability of the material. There was a detriment to it.

(Means for Solving the Problems) This invention is an attempt to solve the above-mentioned inconveniences and shortcomings, and as a means to solve the problems, the present invention provides a base having a storage space for a rotating disk and a material discharge port, and a base. The hopper comprises a rotary disk that is rotatably stored in the storage space and has a number of measuring holes formed in the circumferential direction, and a cap that covers the rotary disk and carries a hopper for accommodating the material. A rotating disk type metering and feeding device in which the material from the outlet is filled into a measuring hole in a rotating disk through a communication hole in a cap, and the metering hole is communicated with a material discharge port in a base for metering and discharging. The large number of measuring holes in the rotating disk are formed in two or more rows on a concentric circumference, and the measuring holes in each adjacent row are staggered as much as possible so that the measured value at a given point is constant, and when the material is discharged. The total cross-sectional area of all the measuring holes facing the material discharge port of the base is arranged so as to be always constant, and furthermore, an annular groove is formed in the upper part of each row of rotating disks in which the measuring holes are formed, The back side of the cap is provided with a protrusion that fits into the annular groove.

(Example) An example of this invention will be described below based on FIGS. 1 to 7.

Reference numeral 1 denotes a metering and feeding device main body, which includes a base 70 in which a rotating disk storage space 70a and a material discharge port 71 are formed, and the storage space 70a of the base 70.
A rotary disk 60 is rotatably housed in the rotary disk 60 and has a large number of measuring holes formed in the circumferential direction, and a hopper 14 that covers the rotary disk 60 and accommodates materials such as powder and granules is inserted through the flange 40. Mounted cap 5
It consists of 0.

As shown in FIG. 7, the base 70 is approximately dish-shaped with an outer wall 72 facing upward, and a cap 50 is fitted onto the inner circumferential surface of the upper end of the outer wall 72 in a depressed manner. An annular stepped portion 73 is formed. A pair of knob fittings 74, 74 are attached at appropriate positions on the outer wall 72, spaced apart from each other, and a knob pin screwing member 10 is attached between the knob fittings 74, 74. Outer wall 72 of flat plate portion 70b of base 70
The aforementioned material discharge port 71 is formed on the side, and a material guide member 75 is connected to the lower part thereof. A substantially cylindrical bearing part 76 that protrudes vertically is formed in the center of the base 70. A bearing hole 77 is formed in the center of the bearing part 76, and a bearing hole 77 is formed at an appropriate position on the inner circumferential wall of the bearing part 76. A bearing receiving flange 78 is provided to protrude inwardly.

As shown in FIG. 6, the rotating disk 60 has an annular step 61 formed on its outer periphery, and two or more rows (two rows in the embodiment) on the concentric circumference of the annular step 61.
A large number of measuring holes 62a...62a, 62b...62b are provided at equal positions in the circumferential direction. These many measuring holes are staggered so that the measured values at arbitrary points between the measuring holes 62a and 62b in each adjacent row are constant, and are arranged so that their ends overlap, and when discharging the material, The total cross-sectional area of all the measuring holes facing the material discharge port 71 of the base 70 is arranged so as to be always constant. Furthermore, an annular groove 63 is provided at the top of each row of the rotating disk 60 in which the large number of measuring holes 62a...62a, 62b...62b are formed.
a, 63b are formed. This annular groove 63
Measuring holes 62a and 62 in each row among a and 63b
The volume V ₂ of the annular groove between a or 62b and 62b is the volume V ₄ of the annular groove at the upper position than the total volume V ₁ of each unit measurement hole 62a or 62b.
It is made smaller than the volume V ₃ after subtracting . According to this configuration, all the material remaining in the V ₂ without being discharged through the material discharge port 71 is scraped into each of the unit measuring holes by the projections 56a and 56b provided on the back side of the cap 50, which will be described later. Therefore, there are advantages in that it is possible to prevent material from being caught in and the phenomenon of burning, and also to improve measurement accuracy.

An outward flange 64 is provided on the upper edge of the outer periphery of the rotating disk 60 to prevent material from entering between the outer periphery of the rotating disk 60 and the inside of the outer wall 72 of the base 70. There is. Further, a small cylinder 65 is suspended from the center lower part of the central flat plate portion 60a of the rotating disk 60, and a female threaded hole 65a is bored at a suitable position in the small cylinder 65. An insertion hole 66 is formed therein, and an annular recess 67 into which a bearing 76 of a base 70 is fitted is formed on the outside of the small cylinder 65.

To assemble this rotating disk 60 to the base 70,
As shown in FIG. 3, the bearing 8 is installed in the bearing hole 77 of the base 70, the bearing part 76 of the base 70 is fitted into the annular recess 67 of the rotating disk 60, and the rotating disk mounting plate 4 is inserted from below the bearing 8. , rotating disk 6
The rotary shaft 3 is fixed to the rotary disk 60 by fixing a bolt 6 to a female threaded hole 65a formed in a small cylinder 65 of 0, and the rotary disk 60 is made rotatable via the rotary shaft 3. Note that a square hole 7 is formed in the center of the rotating disk mounting plate 4 and communicates with the rotating shaft insertion hole 66, and the rotating shaft 3 formed in a square shape is inserted into the rotating shaft insertion hole 66 and the square hole 7. It's inserted. The method of coupling the base 70 and the rotating disk 60 and the method of coupling the rotating disk 60 and the rotating shaft 3 are not limited to the structure of the embodiment and may be arbitrary.

The cap 50 is constructed as shown in FIG. That is, this cap 50 is approximately disk-shaped, and has an outer wall 51 hanging from its outer periphery, and a step 52 that fits into the step 73 of the base 70 at the lower end of the outer periphery of the outer wall 51. forming an outer wall 51
A mounting portion 53 having a cutout portion 53a at a position corresponding to the knob mounting metal fitting 74 of the base 70 is provided at a suitable location on the outer peripheral surface.
The cap 50 is fixed to the base 70 by overlapping the attachment part 53 of the cap with the knob attachment fitting 74 of the base 70 and tightening the knob pin 12 through the notch 53a of the attachment part 53.

Also, on one side of the lower surface of the cap 50 is a rotating disk 6.
An arcuate plate-shaped slotted portion 54 is formed to fit with the annular step portion 61 of 0. A communication hole 5 in the center of this slotted portion 54 communicates with the outlet 14a of the hopper.
A cap 50, a base 70, and a rotating disk 60 are provided on the back side of the slotted portion 54.
In the assembled state, the annular grooves 63a and 63b of the rotating disk 60 are located near the end of the rotating disk 60 in the rotation direction.
Arc-shaped protrusions 56a and 56b that fit respectively with
is installed protrudingly. The protrusions 56a and 56b are not limited to the circular arc shape as shown in the figure, but can take any arbitrary shape.

Above the communication hole 55 of the cap 50 is an inlet 41 that communicates with the communication hole 55 and the hopper outlet 14a.
hopper 14 via a flange 40 formed with
is fixed in place. That is, the flange 40
is fixed to the cap 50 with bolts 42 as shown in FIGS. 1 and 3, the flange 13 of the hopper 14 is placed on the fixed flange 40, and both flanges 40 and 13 are fixed with bolts 43. 44 is a hole for inserting the bolt 42, and 45 is a hole for inserting the bolt 43.

Thus, the material fed to the hopper 14 is
From the hopper outlet 14a, through the inlet 41 of the flange 40, the communication hole 55 of the cap 50, and the measuring holes 62a, 62b of the rotating disk 60 and the annular groove 63.
a, 63b, and is scraped by the slotted portion 54 of the cap 50 as the rotary disk 60 rotates.

In this embodiment, the hopper 14 is of a suction type, and the hopper 14 has a material transport pipe 17 in its upper lid and an exhaust pipe 18 connected to a vacuum pump (not shown) in its lower part. They are connected to each other. However, the hopper 14 is not limited to this, and can also be implemented as a pressure-feeding type.

Note that 16 is a perforated plate installed inside the hopper 14.

The metering holes 62a, 62b and the annular grooves 63a, 63b of the rotary disk 60 are not limited to the shapes of the embodiments described above, and can be appropriately modified in design, and are not limited to two rows, but can also be provided in three or more rows. The protrusions 56a and 56b provided on the back side of the cap 50 are not limited to those of the embodiment, but may have any shape.

(Effect of Example) The operation of the above embodiment will be explained below.

By driving a vacuum pump (not shown) connected to the exhaust pipe 18, the material is suctioned and transported through the transport pipe 17 and stored in the hopper 14. Drive source 2
When the rotary disk 60 starts to rotate clockwise as seen in FIG. 1 due to the drive of , 63b are worn away by the slotted portion 54 of the cap 50 at the upper surface position, and sequentially move toward the material discharge port 71. From this material supply point to the material discharge point,
These measuring holes 62a, 62b and annular groove 63
Since the material is filled in the hopper a and 63b, it is possible to prevent outside air from entering through the metering hole and the annular groove, so that the airtightness within the hopper 14 can be maintained.

When the measuring holes 62a, 62b reach the material discharge port 71, the material in the measuring holes 62a, 62b and the annular grooves 63a, 63 located directly above the measuring holes 62a, 62b are removed.
The materials in b gradually fall downward due to their gravity. At this time, since the metering holes 62a and 62b are arranged in a staggered manner, the material is continuously discharged from the material discharge port 71 in fixed amounts without interruption.

The material remaining in the annular grooves 63a, 63b between the metering holes 62a, 62a, 62b, 62b is scraped off by the protrusions 56a, 56b of the cap 50 into the metering holes 62a, 62b at the rear of the remaining portion. , new material is filled from above. Then, the above operation is repeated. In this case, the metering hole 62a from the material discharge point to the material supply point
..., 62b... are not filled with material, so
Although there is a possibility that outside air may enter the hopper 14 through the metering hole, in this device, the protrusions 56a, 56b of the cap 50 fit into the annular grooves 63a, 63b of the rotary disk 60 in a part of the area. Since an air seal can be formed by combining the parts, this kind of inconvenience can be solved.

(Effect of the invention) This invention consists of the above-mentioned structure, in which the large number of metering holes in the rotating disk are formed in two or more rows on a concentric circumference, and the metering holes in each adjacent row are arranged arbitrarily. The measured value at each point is shifted as much as possible so that it is constant, and the total cross-sectional area of all the measuring holes facing the material discharge port of the base is always constant when discharging the material, so a constant amount is always delivered continuously at any moment. It can be metered and supplied in an analog manner.

Moreover, since the instantaneous discharge amount can always be kept constant in this way, the metered supply amount can be supplied in proportion to time. Therefore, when operating using a timer, the total metered supply amount can be accurately determined by calculating the product of the metered supply amount per unit time and the operating time. In other words, it is possible to measure an arbitrary amount of metered supply by time management, and the accuracy of measurement can be improved.

Furthermore, an annular groove is formed in the upper part of each row of rotating disks in which the measuring holes are formed, and a protrusion that fits into the annular groove is provided on the back side of the cap, so that the material can be discharged as described above. Because it creates an air seal effect from the ground point to the material supply point,
Even when the material is suctioned into the hopper and measured, it can be carried out without any loss in the suction and transportation ability of the material. At the same time, it has various effects such as preventing material from being caught between the two and contributing to improving measurement accuracy.

[Brief explanation of drawings]

The figures all show one embodiment of this invention, with Fig. 1 being a partially cutaway plan view, Fig. 2 being a side view, and Fig. 3 being a sectional view taken along the line shown in Fig. 1 (however, a hopper is attached). ), Figure 4 is a sectional view taken along the line of Figure 1, Figure 5 is
The figure is a perspective view of the cap viewed from the bottom, FIG. 6 is a perspective view of half of the rotating disk, and FIG. 7 is a perspective view of half of the base. 3...Rotating shaft, 14...Hopper, 40...Flange, 41...Inlet, 50...Cap, 54
...Slotted portion, 55...Communication hole, 56a, 56
b...Protrusion, 60...Rotating disk, 62a, 62b
...Measuring hole, 63a, 63b...Annular groove, 70...
... Base, 71 ... Material discharge port, V ₁ ... Total volume of each unit measuring hole, V ₂ ... Volume of annular groove, V ₃ ...
V ₁ −V ₄ , V ₄ ...Volume of the annular groove.

Claims (1)

[Claims for Utility Model Registration] (1) A base having a storage space for a rotating disk and a material discharge port, and a base that is rotatably stored in the storage space of the base and has a large number of measuring holes in the circumferential direction. A rotary disk formed with a rotary disk, and a cap that covers the rotary disk and carries a hopper for storing material,
A rotating disk type metering and feeding device in which the material from the hopper outlet is filled into the measuring hole of the rotating disk through the communication hole of the cap, and the metering hole is communicated with the material discharge port of the base for metering and discharging. The plurality of measuring holes in the rotating disk are formed in two or more rows on a concentric circumference, and the measuring holes in each adjacent row are staggered as much as possible so that the measured value at a given point is constant, and the material discharge is The measuring holes are arranged so that the total cross-sectional area facing the material discharge port of the base is always constant, and furthermore, an annular groove is formed in the upper part of each row of rotating disks forming the measuring holes. . A rotating disk type metering and feeding device, characterized in that the back side of the cap is provided with a protrusion that fits into the annular groove. (2) Among the annular grooves, the volume V ₂ of the annular groove between the metering holes in each row is determined by the volume V ₄ of the annular groove at the upper position than the total volume V ₁ of each unit metering hole.
The rotating disk type metering and feeding device according to claim (1) of the utility model registration, which is smaller than the volume V3 obtained by subtracting the volume _V3 .