JP2008157696A - Quantity determining hopper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a quantity determining hopper capable of maintaining satisfactory working environment, despite its being a simple and low-cost device constitution, and which can readily and efficiently reuse excess amount of power and granular materials which occur at measurement. <P>SOLUTION: A cover body 8 made of a flexible member connects a peripheral part of a power and granular material feeding chute 6, at a lower end part of a storage hopper 5 for storing various types of power and granular materials to a peripheral part of a power and granular material casting opening 3 at the upper end of a casing body 2 arranged, below the feeding chute 6 and having a tapered structure on its upper side. The cover body 8 is provided with an extending and contracting means 12. When power and granular materials are to be measured, a slightly excessive amount of power and granular materials is supplied and filled in the quantity determining hopper 1, in such a way as to make it overflow with the cover body 8, in a relaxed state, and their volume is measured. The amount of power and granular materials which have overflowed is collected and stored in the cover body 8 that surrounds the casing opening 3, while the cover body 8 is extended, prior to the next measurement of power and granular materials to make the power, and the granular materials which are stored in the cover body 8 is hurled into the quantity determining hopper 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a quantitative soot that measures a certain volume of granular material by filling various types of granular material.

  When packing various types of granular materials such as vegetation soil and fertilizer into bags, etc., in a certain amount, as a method of weighing the granular material by a certain amount, for example, weight measurement using a load cell etc. In addition, volumetric measurement using a quantitative jar is adopted. Among these, in the weight weighing method using a load cell or the like, the apparatus configuration becomes complicated and the cost is inevitably high, and it may be difficult to adopt in a small-scale facility or the like. On the other hand, the volumetric measurement method using a fixed amount can be considered to be relatively easy to adopt even in a small-scale facility or the like because the device configuration is simple and the cost can be kept low.

  The fixed amount soot is a substantially box-shaped body having a desired volume.For example, while the upper end of a hollow casing main body as a main body is used as a release surface as a powder inlet, A powder gate that is configured to be openable and closable with a discharge gate for discharging powder, and that is placed below the storage hopper that stores various powders such as vegetation soil and fertilizer, and is supplied from the storage hopper By a very simple operation of filling a body, a certain volume of powder particles can be repeatedly measured in a short time.

By the way, when performing volumetric measurement of the granular material with the above-mentioned quantitative determination rod, for example, as described in Patent Document 1 as a conventional technique, a slightly excessive amount of granular material is supplied so as to overflow and quantified. After full filling, the excess amount of the granular material piled up at the upper part of the granular material inlet at the upper end of the fixed volume is scraped off with a scraper.
Japanese Patent Laid-Open No. 1-173836

  However, in the above-described conventional quantitative soot, the granular material that overflows every measurement and is scraped off by the scraper is scattered around the quantitative soot or scattered depending on the particle size of the granular material. It was not necessarily preferable in terms of surface. In addition, when collecting and reusing powder particles scattered around the metering bowl, the work efficiency is very poor if it is human power, and the burden on the worker is large. Automating can be expected to improve work efficiency, but it is expected to be costly.

  In view of the above points, the present invention is capable of maintaining a good working environment with a simple and inexpensive apparatus configuration, and capable of easily and efficiently reusing excessive powder particles generated during measurement. The issue is to provide.

  In order to solve the above-mentioned problem, in the quantitative soot according to claim 1 according to the present invention, it is disposed below the storage hopper for storing various powder particles and is filled with the powder particles supplied from the storage hopper. This is a quantitative bowl for measuring a certain volume of granular material, and has a hollow casing body with the upper end as a release surface and a granular material inlet, and the lower end portion of the casing body is for discharging the granular material. A discharge gate of the storage unit, and a peripheral part of the granular material inlet and a peripheral part of the granular material supply chute at the lower end of the storage hopper are connected by a cover body made of a flexible member, The cover body is provided with means for extending / relaxing the cover body, and when measuring powder particles, the cover body is relaxed and a slightly excessive amount of powder particles is supplied into the metering bowl and filled to overflow. While measuring the volume, The granular material is collected and stored in the cover body around the powder inlet, and before the next measurement of the granular material, the cover body is stretched and the overflowed granular material stored in the cover body is quantitatively measured. It is characterized in that it is configured so as to be put in.

  According to a second aspect of the present invention, there is provided a taper structure in which the upper side of the casing body is gradually reduced toward the upper end.

  According to the fixed quantity container of claim 1 concerning the present invention, it is arranged in the lower part of the storage hopper which stores various granular materials, and is filled with the granular material supplied from the storage hopper, so that a certain volume of granular material This is a quantitative bowl for weighing the body, which has a hollow casing body with the upper end as a release surface and a powder body inlet, and a lower end of the casing body can open and close a discharge gate for discharging the powder body And connecting the peripheral edge of the granular material inlet and the peripheral edge of the granular material supply chute at the lower end of the storage hopper with a cover body made of a flexible member. Equipped with stretching / relaxation means, and when measuring powder particles, the cover body is relaxed, a slightly excessive amount of powder particles are supplied into the measuring bowl and filled to overflow, and the volume is measured. Minute powder is around the powder inlet The cover body is collected and stored in the cover body, and the cover body is stretched before the next measurement of the powder body. In spite of the low-cost equipment configuration, it is possible to maintain a good working environment by preventing the scattering of powder particles around the metering gutter at the time of weighing, and the excess powder particles generated at the time of weighing are easy and efficient at the next weighing. It can be reused well and is suitable.

  Moreover, according to the fixed quantity container of Claim 2, since it was made into the taper structure so that the upper side of the said casing main body may be gradually reduced toward an upper end, it is the powder of the surplus powder which is piled up on the granular material inlet at the time of measurement The amount of granules can be suppressed, and the measurement accuracy can be improved with a simple and inexpensive apparatus configuration.

  In the metering bowl of the present invention, the upper side of the hollow casing body is tapered so as to gradually decrease toward the upper end, and the upper end is used as a release port as a powder inlet. The lower end portion is provided with a discharge gate for discharging powder particles. And this casing main body is arrange | positioned in the lower part of the storage hopper which stores various granular materials, such as vegetation soil and a fertilizer, for example, the powder body inlet periphery of a casing main body upper end, and the powder of a storage hopper lower end part The peripheral edge of the granule supply chute is connected so as to be covered with a cover member made of, for example, a filter cloth, which is a flexible member. The cover body is configured to extend and relax by moving the upper edge of the cover body up and down along the peripheral wall of the powder supply chute.

  And when measuring the granular material with the quantitative soot having the above-mentioned configuration, first, the cover body is in a relaxed state, and then the amount of the powder slightly larger than the volume of the quantitative soot in the quantitative soot from the storage hopper. The volume is measured by filling the body so that it overflows from the top of the powder inlet, while the powder that overflows and spills out is covered with a cover placed around the powder inlet. Collect everything and store it temporarily. At this time, since the upper side of the casing body has a tapered structure, the amount of powder particles formed according to the angle of repose of the powder particles and piled up in a mountain shape at the upper part of the powder particle inlet is suppressed, for example, Even a simple device configuration without a scraping mechanism such as a scraper can be measured with relatively high accuracy, and can be sufficiently practically used. Then, before the next measurement of the granular material, the cover body in a relaxed state is stretched, and after overflowing the powder material that has overflowed during the previous measurement stored in the cover body into the fixed quantity container, After returning the body to the relaxed state again, the granular material is supplied from the storage hopper as before, and the volume is measured.

  In this way, the quantitative kite of the present invention maintains the working environment in a good condition by reliably preventing the scattering and scattering of powder particles around the quantitative kite at the time of weighing, even though the device configuration is very simple and inexpensive. In addition, it is preferable that the excess powder particles caused by overflow or scraping during measurement can be reused easily and efficiently at the next measurement.

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

  In the figure, 1 is a fixed quantity meter for measuring a certain volume of powder particles by filling the powder particles, and the main body is a hollow casing body 2 made of steel, and the upper side of the casing body 2 is As shown in the figure, the taper structure is formed so as to be gradually reduced toward the upper end, and the granular material inlet 3 is formed with the upper end portion as a release surface, while the lower end portion of the casing body 2 has a powder. A discharge gate 4 for discharging particles is provided so as to be freely opened and closed.

  A storage hopper 5 that stores various powders A such as vegetation soil and fertilizer is disposed above the fixed amount tub 1, and the stored powder A is stored at the lower end of the storage hopper 5. A powder supply chute 6 for dispensing and supplying to the metering jar 1 is provided, and its tip opening faces the powder particle inlet 3 at the upper end of the metering jar 1, and a supply gate 7 is provided at the tip opening. It can be opened and closed freely.

  8 is a flexible material such as a filter cloth or a rubber plate that connects the peripheral edge of the granular material inlet 3 at the upper end of the casing body 2 and the peripheral edge of the granular material supply chute 6 at the lower end of the storage hopper 5. It is a cover body made of a member, and the lower end portion of the cover body 8 is fixed to the peripheral edge portion of the granular material inlet 3, while the upper end portion of the cover body 8 is along the wall surface of the granular material supply chute 6. It is fixed to a plurality of sliding members 9 that slide, and the periphery of the powder body inlet 3 is surrounded and covered by a cover body 8.

  Each of the sliding members 9 is fixed to the tips of the piston rods 11 of a plurality of cylinders 10 provided on the peripheral wall portion of the granular material supply chute 6, and according to the expansion and contraction of the piston rod 11, as shown in the figure. Thus, it slides up and down along the wall surface of the powder supply chute 6. Then, when the piston rod 11 is extended and the upper end of the cover body 8 is lowered, the cover body 8 can be in a relaxed state accordingly, while the piston rod 11 is contracted and the upper end of the cover body 8 is raised. In response to this, the cover body 8 can be extended, and thus the extending / relaxing means 12 of the cover body 8 is configured.

  And when measuring granular material A, such as vegetation soil in the storage hopper 5, fertilizer, etc. in the storage hopper 5 comprised as mentioned above, as shown in FIG. 2, first, granular material supply of the storage hopper 5 is carried out. The piston rod 11 of each cylinder 10 provided on the peripheral wall of the chute 6 is extended to keep the cover body 8 in a relaxed state (a). Next, the supply gate 7 at the lower end of the powder supply chute 6 is released, the powder A in the storage hopper 5 is discharged, and supplied to the casing body 2 of the metering bowl 1 through the powder inlet 3. Fill and measure volume (b).

  At this time, a slightly excessive amount of the powder A is supplied from the upper part of the powder body inlet 3 at the upper end of the casing body 2 so that a slight amount of the powder A overflows from the volume of the metering bowl 1, and the casing In this embodiment, the upper part of the casing body 2 has a tapered structure as shown in FIG. The amount of granular material A ′ formed according to the angle of repose of A and piled up in a mountain shape at the upper part of the granular material inlet 3 can be suppressed as much as possible. For example, as in this embodiment, a scraper or the like is scraped. Even a simple device configuration without a dropping mechanism is designed so that it can be measured with an accuracy that is practically satisfactory. In addition, for example, when the volume of the fixed amount tub is small and the diameter of the casing main body is originally small, the upper part of the granular body inlet is not required to have a tapered structure on the upper side of the casing main body as in this embodiment. Therefore, the amount of the granular material piled up in a mountain shape does not increase so much, and it is possible to perform the measurement to the extent that there is no practical problem. Further, the granular material A ″ spilled around the granular material inlet 3 due to overflow is collected and temporarily collected by the loose cover body 8 arranged around the granular material inlet 3. Store.

  When the volume measurement of the powder body A is finished in this way, the discharge gate 4 at the lower end of the casing body 2 is released, the powder body A filled in the casing body 2 is dispensed, and packed in a bag body B or the like prepared appropriately thereunder. Go (c). When all the powder particles A in the casing body 2 have been discharged, the discharge gate 4 is closed to prepare for the next measurement of the powder particles A, while the piston rod 11 of the cylinder 10 is contracted to be in a relaxed state. The cover body 8 is extended and the overflowing granular material A "stored in the cover body 8 at the previous measurement is poured into the casing body 2 through the granular material inlet 3. (D) Then, in a state where this small amount of the powder A ″ is stored in the casing body 2, the piston rod 11 of the cylinder 10 is extended to return the cover body 8 to the relaxed state again, As before, the granular material A is supplied from the storage hopper 5 and volumetric measurement is performed.

  As described above, the quantitative kit of the present invention can prevent the scattering and scattering of powder particles around the quantitative kit at the time of weighing, while ensuring a simple and inexpensive device configuration. In addition to being able to maintain a good state, surplus particles produced by overflow or scraping during measurement can be reused easily and efficiently at the next measurement, and the particles can be used without waste. The burden on the operator can be greatly reduced.

  In the present embodiment, in order to simplify the device configuration, a scraper or the like that scrapes off the granular material stacked on the upper part of the granular material inlet at the upper end of the casing body is described. If a scraper or the like is provided, the accuracy of volumetric measurement is further improved, although some device costs are required. In this case, since the granular material scraped off by the scraper is collected by the cover body in a relaxed state as well as the granular material spilled due to overflow, there is no problem.

It is a partially cutaway perspective view showing an embodiment of a quantitative bowl according to the present invention. It is explanatory drawing which shows the measurement procedure of a fixed amount tub.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Fixed quantity bowl 2 ... Casing main body 3 ... Granule body inlet 4 ... Discharge gate 5 ... Storage hopper 6 ... Granule body supply chute 7 ... Supply gate 8 ... Cover body 12 ... Extension / relaxation means A, A ', A "... powder body B ... bag body

Claims (2)

  This is a fixed quantity container that is placed under the storage hopper that stores various powders and measures a certain volume of powder by filling the powder supplied from the storage hopper, with the upper end as the release surface. A hollow casing body serving as a powder body inlet is provided, and a lower end portion of the casing body is provided with a discharge gate for powder body discharge so as to be openable and closable. The peripheral part of the powder supply chute at the lower end of the hopper is connected by a cover body made of a flexible member, and the cover body is provided with means for extending / relaxing the cover body. While the body is relaxed, a slightly excessive amount of powder is supplied into the metering bowl and filled to overflow, and the volume of the overflow is covered with the cover around the powder inlet. Collected and stored at the next time Quantitative boxes, characterized in that to constitute a granular material overflow fraction which by stretching the cover member before the amount accumulated in the cover body so as to put into the quantitative boxes.   2. The quantitative scissor according to claim 1, wherein a taper structure is formed so that the upper side of the casing body is gradually reduced toward the upper end.

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