JP3165621U - Balance set, balance and weighing container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a balance set, a balance and a measuring container capable of reducing the loss of powder or the like during weighing and the risk of erroneous weighing and reliably weighing the required amount of powder or the like. SOLUTION: This balance set 1 includes a measuring container 3 for accommodating an object to be measured and a balance 2 having a measuring table 4 on which the measuring container is placed, and the measuring container and the balance are attached to each other. It is a balance set that has an attractive magnetic material, and the measuring container and the measuring table are magnetized by the magnetic material. The balance has a measuring table on which a measuring container for accommodating a measuring object is placed, a measuring unit 5 for measuring the load of the measuring object, and a magnet for generating a magnetic field above the measuring table. Is. The measuring container is a measuring container that is placed on a measuring table of a balance and has a magnetic material that can be magnetized with the measuring table. [Selection diagram] Fig. 1

Description

  The present invention relates to a balance set, a balance, and a weighing container.

  Today, a balance is used as a weighing device used to weigh an appropriate amount of powder or the like. Such a balance usually has a weighing table and a weighing unit that supports the weighing table from below. When weighing an appropriate amount of powder using such a balance, the operator places a measuring container for storing the powder to be weighed on the weighing table, and then the amount of powder stored in the measuring container. Tweak the. The operator can obtain a desired amount of powder or the like by finely adjusting the amount of the powder or the like until the value indicated by the balance becomes equal to the weight to be measured.

  Today, various balances have been proposed as balances that can be used to weigh such powders. For example, an electronic balance (Japanese Patent Laid-Open No. 2009-257867) has been proposed.

  When a desired amount of powder or the like is weighed using such a balance, an operator usually measures the weight of the powder or the like while the weighing container is placed on a weighing table, while using a spatula or spoon. Is used to finely adjust the amount of the powder. Accordingly, during such fine adjustment work, the operator's hand or clothes sleeve may come into contact with the measuring container, and as a result, powder or the like may spill out of the measuring container. Such falling of the powder or the like not only causes loss of the powder and the associated cost, but also may lead to erroneous measurement due to the measurement of the dropped powder or a decrease in work efficiency. There is also.

  Therefore, as a balance used to weigh an appropriate amount of powder or the like, the necessary amount of powder or the like can be reliably obtained with little loss of powder or the like during measurement and the risk of erroneous measurement. It is desirable. However, there are currently no balance sets and balances and weighing containers that satisfy such requirements.

JP 2009-257867 A

  The present invention has been made in view of these inconveniences, and is a balance set and a balance that can reliably obtain a necessary amount of powder and the like, with less risk of loss of powder and the like during measurement and erroneous weighing. The purpose is to provide a weighing container.

The idea made to solve the above problems is
A weighing container for storing an object to be weighed;
A balance having a weighing platform on which the weighing container is placed;
The weighing container and the balance have magnetic materials that attract each other,
In the balance set, the weighing container and the weighing table are magnetically attached by the magnetic body.

  The balance set is configured such that the weighing container and the weighing table are magnetically attached by a magnetic material. Therefore, the balance set can stably hold the weighing container on the weighing table. Therefore, the balance set is less likely to lose the balance even if the operator's hand, clothes sleeve, or the like contacts the measurement container during measurement. As a result, the balance set can reduce the risk of the weighing object being lost during weighing, and reduce the risk of erroneous weighing due to the weighing object falling on the weighing table being weighed. It is possible to reliably weigh the necessary amount of objects to be weighed.

Another idea made to solve the above problems is
A weighing table on which a weighing container for storing an object to be weighed is placed;
A weighing unit for weighing the load of the object to be weighed;
And a magnet for generating a magnetic field above the weighing table.

  The balance has a magnet that generates a magnetic field above the weighing table. Therefore, the balance can stably hold the weighing container on the weighing table by forming the weighing container placed on the weighing table so as to be magnetically attached to the weighing table. Therefore, the balance is less likely to lose balance even if the operator's hand, clothes sleeve, or the like contacts the measurement container during measurement. As a result, the balance can reduce the risk of loss of the weighing object during weighing, and can reduce the risk of erroneous weighing due to weighing of the weighing object dropped on the weighing table. It is possible to reliably weigh the necessary amount of objects to be weighed.

  In the balance, the magnet is an electromagnet, and the weighing unit excites the electromagnet due to sensing a load, and the electromagnet excitation due to sensing the reduction or disappearance of the load. It is preferable to have excitation means for stopping As a result, when placing the weighing container on the weighing table, no magnetic force acts between the weighing container and the weighing table until the weighing container is placed on the weighing table, and the weighing container is placed on the weighing table smoothly. be able to. In other words, if a magnetic force acts between the weighing container and the weighing table before the weighing container is placed on the weighing table, the weighing container close to the weighing table is suddenly attracted to the weighing table by the magnetic force, and the weighing container Balance may be lost, and the object to be weighed may be lost. On the other hand, when the weighing unit has the excitation means, the weighing container can be smoothly placed on the weighing table, and loss of the object to be weighed can be prevented. On the other hand, when lifting the object to be weighed from the weighing table, the balance does not work when the weighing container is separated from the weighing table, and the weighing container can be smoothly lifted from the weighing table. As a result, when the weighing container is lifted from the weighing table, the balance is attracted to the weighing table due to the magnetic force acting between the weighing container and the weighing table. The risk of losing things can be reduced.

  In the balance, the magnet may be an electromagnet, and the weighing unit may include selection means for selectively exciting or de-energizing the electromagnet. Thus, the electromagnet can be excited only when it is desired to stably hold the weighing container on the weighing table, for example, during fine adjustment of the amount of the object to be weighed.

Furthermore, another idea made to solve the above problems is
A weighing container placed on a weighing platform of a balance and having a magnetic material that can be magnetically attached to the weighing platform.

  The weighing container has a magnetic material that can be magnetically attached to the weighing table. Therefore, the weighing container is stably held on the weighing table. Therefore, the weighing container is less likely to lose the balance even if the operator's hand, clothes sleeve, or the like comes into contact during weighing. As a result, the weighing container can reduce the risk of the weighing object being lost during weighing, and reduce the risk of erroneous weighing due to the weighing object falling on the weighing table being weighed. It is possible to reliably weigh the necessary amount of objects to be weighed.

  As described above, the balance set, the balance, and the measuring container of the present invention can reduce the loss of powder during measurement and the risk of erroneous measurement, and reliably measure the required amount of powder. Can do.

It is a typical perspective view which shows the balance set which concerns on one Embodiment of this invention. It is an AA fragmentary sectional view which shows the weighing stand of the balance in the balance set of FIG. It is a typical perspective view which shows the balance set which concerns on the form different from the balance set of FIG. It is a schematic block diagram which shows the excitation structure of the balance in the balance set of FIG. It is a schematic block diagram which shows the excitation structure of the balance in the balance set which concerns on a different form from the balance set of FIG.1 and FIG.3.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

(First embodiment)
The balance set 1 in FIG. 1 has a balance 2 and a weighing container 3. Although it does not specifically limit as a usage method of the balance set 1, It can use suitably for a dispensing operation | work etc.

  The balance 2 includes a weighing table 4, a weighing unit 5, and a magnet 6 as a magnetic body.

  The balance 2 is an electronic balance. Some electronic balances have various measuring means such as load cell type, electromagnetic type, tuning fork type, etc., but the balance 2 may have any of these measuring means, You may have other measuring means.

  The weighing table 4 is a table on which the weighing container 3 is placed. The weighing platform 4 has an upper wall and a side wall provided substantially vertically from the periphery of the upper wall downward. The weighing platform 4 is formed into a flat rectangular body having an opening below the upper wall and the side wall. The weighing platform 4 has a connecting portion for fitting a support rod (not shown) of the weighing portion 5 at the approximate center on the back side of the upper wall.

  The size of the weighing platform 4 is appropriately changed according to the size and weight of the object to be weighed, and is not particularly limited. When the balance 2 is for measuring a load such as powder, the size of the weighing platform 4 is usually about 10 cm to 20 cm in length and width, and 0.5 cm to 2.5 cm in thickness. It is said to be about. The material of the weighing platform 4 is not particularly limited, but generally stainless steel or the like can be used.

  The weighing unit 5 supports the weighing table 4 from below and measures the load of the object to be weighed placed on the weighing table 4. The weighing unit 5 has weighing means that a general electronic balance has. The weighing unit 5 has a support bar for supporting the weighing table 4 from below. The support bar is provided substantially perpendicular to the grounding surface of the measuring unit 5. The weighing unit 5 is configured to support the weighing table 4 from below by fitting one end of the support rod into the connecting portion of the weighing table 4.

  As shown in FIG. 2, the magnet 6 is attached to the back side of the weighing table 4. The magnet 6 is configured to generate a magnetic field above the weighing table 4. The magnet 6 may be directly attached to the back surface of the weighing table 4 or may be attached after a predetermined plating process is performed with nickel or the like. The said balance 2 can improve rust prevention property because the magnet 6 is predetermined-plated. In the present embodiment, the magnet 6 is configured to be attached to the back surface of the weighing table 4. However, the magnet 6 is configured integrally with the weighing table 4 by plating the periphery of the magnet 6 with stainless steel or the like. You may make it do.

  The measuring container 3 is for storing an object to be weighed. The size of the weighing container 3 is appropriately changed depending on the object to be weighed, the size of the weighing table 4 and the like, and is not particularly limited. When the measuring container 3 is used for containing powder or the like, the size of the measuring container 3 is usually about 4 cm to 10 cm in length and width, and 0.5 cm to 3 cm in height. It is said that it is about the following. The object to be weighed may be directly stored in the measuring container 3 or may be stored in the measuring container 3 via a medicine wrapping paper or the like. The measuring container 3 is formed of a magnetic material that exhibits magnetism by the magnetic force of the magnet 6. The measuring container 3 is usually made of a paramagnetic material. Although it does not specifically limit as a magnetic body which forms the measurement container 3, For example, iron, cobalt, nickel, silicon steel, a permalloy, a ferrite, stainless steel etc. can be mentioned. Further, the measuring container 3 may be one obtained by applying predetermined plating to these magnetic bodies.

  Next, a method for measuring the weight of the object to be weighed by the balance set 1 will be described.

  First, the operator turns on the balance 1 and places the weighing container 3 and the medicine-wrapping paper placed on the weighing container 3 on the weighing table 4. At this time, the measuring table 4 and the measuring container 3 are in a state in which the magnet 6 included in the balance 2 and the measuring container 3 made of a magnetic material are attracted to each other, and the measuring container 3 is magnetically attached to the measuring table 4. The operator performs taring with the measuring container 3 and the medicine wrapping paper placed on the measuring table. An operator places an appropriate amount of an object to be weighed, such as powder, on the medicine wrapping paper in a state where the weighing container 3 is placed on the weighing table 4 and the medicine wrapping paper is placed on the weighing container 3. The operator finely adjusts the amount of the object to be weighed on the medicine wrapping paper with a spatula or a spoon while confirming the numerical value indicating the load of the object to be weighed displayed on the weighing unit 5. The operator finely adjusts the amount of the object to be weighed so that the numerical value indicating the load of the object to be displayed displayed on the weighing unit 5 shows a desired value, and is placed on the measuring container 3 and the measuring container 3. Take the medicine wrapper and the object to be weighed.

  The balance set 1 is configured such that the weighing container 3 and the weighing table 4 are magnetized by a magnetic material. Therefore, the balance set 1 can stably hold the weighing container 3 on the weighing table 4. Therefore, the balance set 1 is less likely to lose the balance even if the operator's hand, clothes sleeve, or the like contacts the measurement container 3 during measurement. As a result, the balance set 1 can reduce the possibility that the object to be weighed will be lost during the weighing, and reduce the possibility of erroneous weighing due to the object to be weighed falling on the weighing table 4 being weighed. It is possible to reliably weigh the necessary amount of objects to be weighed.

  The balance 2 has a magnet 6 that generates a magnetic field above the weighing table 4. Therefore, the balance 2 can stably hold the weighing container 3 on the weighing table 4 by forming the weighing container 3 placed on the weighing table 4 so as to be magnetically attached to the weighing table 4. it can.

  The measuring container 3 is formed of a magnetic material that can be magnetically attached to the measuring table 4. Accordingly, the weighing container 3 is stably held on the weighing table 4 by being magnetically attached to the weighing table 4.

(Second embodiment)
The balance set 11 of FIG. 3 includes a balance 12 and a weighing container 3. In the balance set 11, the same components as those of the balance set 1 of FIG.

  The balance 12 includes a weighing table 4 and a weighing unit 13.

  The measuring unit 13 has an electromagnet 14 in the upper part in addition to the configuration of the measuring unit 5. Specifically, the electromagnet 14 is a place that is located below the weighing table 4 and can generate a magnetic field above the weighing table 4 in a state where the weighing table 4 is attached to the weighing unit 13. Is provided. The weighing unit 13 includes a control unit 15 that is electrically connected to the electromagnet 14.

  The electromagnet 14 is formed of an iron core and a coil wound around the iron core. The electromagnet 14 is electrically connected to the control unit 15 and is excited when a current is supplied from the control unit 15 to generate a magnetic field upward. The electromagnet 14 is in a non-excited state when the supply of current from the control unit 15 is stopped.

  The control unit 15 has excitation means 16. The control unit 15 is electrically connected to the weighing unit 17.

  When the excitation means 16 receives a signal indicating that a load has been detected from the weighing means 17, it supplies a current to the electromagnet 14. In addition, when the excitation unit 16 receives a signal indicating that the load has disappeared from the weighing unit 17, the excitation unit 16 stops supplying current to the electromagnet 14.

  The operation procedure of the balance set 11 will be described.

  First, the operator turns on the balance 11 and tares the weighing container 3 and the medicine wrapping paper placed on the weighing table 4. In relation to this taring operation, the weighing means 17 does not sense any load before the operator places the weighing container 3 and the medicine wrapping paper on the weighing table 4. Therefore, when the weighing container 3 is placed on the weighing table 4, the electromagnet 14 is in a non-excited state, and the operator places the weighing container 3 on the weighing table without being pulled toward the weighing table 4. 4 can be allowed to stand. Next, the operator places an appropriate amount of an object to be weighed such as powder on the medicine wrapping paper in a state where the weighing container 3 is placed on the weighing table 4 and the medicine wrapping paper is placed on the weighing container 3. At this time, the weighing means 17 senses at least the load of the weighing container 3 and the medicine wrapper. Therefore, the excitation means 16 receives a signal indicating that a load has been detected from the weighing means 17 and supplies a current to the electromagnet 14 based on this signal. As a result, since the electromagnet 14 is excited and generates a magnetic field upward, the weighing table 4 and the weighing container 3 are magnetized, and the weighing container 3 is stably held on the weighing table 4. Further, after the operator weighs a desired amount of the object to be weighed, when the weighing container 3 on which the object to be weighed is lifted from the weighing table 4, the weighing means 17 senses the disappearance of the load. . Therefore, the excitation means 16 has received a signal indicating that the load has disappeared from the weighing means 17 and has stopped supplying current to the electromagnet 14 based on this signal. As a result, since the electromagnet 14 is in a non-excited state, the magnetic adhesion between the measuring table 4 and the measuring container 3 is released, and the operator can lift the measuring container 3 smoothly.

  When the weighing container 3 is placed on the weighing table 4, the balance 12 does not exert a magnetic force between the weighing container 3 and the weighing table 4 until the weighing container 3 is placed on the weighing table 4. The container 3 can be smoothly placed on the weighing table 4. That is, if a magnetic force acts between the measuring container 3 and the measuring table 4 before the measuring container 3 is placed on the measuring table 4, the measuring container 3 close to the measuring table 4 is suddenly moved by the magnetic force. At this time, the balance of the measuring container 3 may be lost, and the object to be weighed may be lost. On the other hand, the balance 12 can place the weighing container 3 on the weighing table 4 smoothly because the weighing unit 13 has the excitation means 16 and can prevent loss of the object to be weighed. . On the other hand, when lifting the object to be weighed from the weighing table 4, the balance 12 does not have a magnetic force when separating the weighing container 3 and the weighing table 4, and can smoothly lift the weighing container 3 from the weighing table 4. As a result, when the weighing container 3 is lifted from the weighing table 4, the balance 12 is attracted to the weighing table 4 by the magnetic force acting between the weighing container 3 and the weighing table 4. The balance of 3 may be lost, and the risk of loss of the object to be weighed can be reduced.

(Third embodiment)
Compared with the balance 12 in the second embodiment, the balance 21 in the present embodiment is different in excitation means for exciting or de-energizing the electromagnet 14. Hereinafter, the excitation means of the balance 21 will be described.

  The balance 21 in FIG. 5 includes an electromagnet 14, a control unit 22, and a switch 24. Since the electromagnet 14 is the same as the balance 12 of FIG. 3, the same number is attached | subjected and description is abbreviate | omitted.

  The control unit 22 has excitation means 23. The control unit 22 is electrically connected to the switch 24.

  The excitation means 23 supplies current to the electromagnet 14 or stops supplying current to the electromagnet 14 based on the signal received from the switch 24.

  The switch 24 instructs the exciting means 23 to excite or de-energize the electromagnet 14 based on the operator's selection (selecting means). Specifically, the switch 24 is converted into an ON state or an OFF state by being pressed by an operator. The switch 24 gives an instruction to the excitation means 23 to supply current to the electromagnet 14 when it is pushed by the operator and converted to the ON state. In addition, when the switch 24 is pushed by the operator and converted to the OFF state, the switch 24 gives an instruction to the excitation means 23 to stop the supply of current to the electromagnet 14.

  The balance 21 can excite the electromagnet 14 only when it is desired to stably hold the weighing container 3 on the weighing table 4 during fine adjustment of the amount of the object to be weighed. Therefore, the balance 21 can place the weighing container 3 on the weighing table 4 and keep the weighing container 3 lifted smoothly from the weighing table 4 by leaving the electromagnet 14 in a non-excited state. In addition, the balance 21 can reduce the possibility that an object to be weighed will be lost during weighing by exciting the electromagnet 14 during the weighing operation, and also the object to be weighed that has dropped on the weighing table 4. The possibility of erroneous weighing due to the weighing of can be reduced, and the necessary amount of objects to be weighed can be reliably weighed.

  Since the balance 21 has the electromagnet 14 in the weighing unit 13, when weighing the load of the object to be weighed, not only the load of the weighing container 3 and the object to be weighed but also the weighing table 4 and There is a possibility that the weight taken into account by the force attracted to the measuring container 3 by the magnetic force is measured by the measuring means 17. Therefore, in this case, the balance 21 calculates in advance the weight generated by the force with which the weighing table 4 and the weighing container 3 are attracted, and calculates the value excluding this weight as the load of the object to be weighed. Is needed.

  The balance set, the balance, and the weighing container of the present invention can be implemented in various modified and improved forms in addition to the above-described embodiment. For example, the weighing container may be formed with a magnet, and the weighing platform of the balance may be formed with a magnetic material such as stainless steel that is attracted by a magnet. Further, both the weighing container and the balance may be formed with a magnet. The magnet or electromagnet provided in the balance may be provided in either the weighing table or the weighing unit as long as it generates a magnetic field above the weighing table, and only in a specific part such as the center of the weighing table. It may be provided.

  The balance stops the excitation of the electromagnet due to the excitation means detecting the disappearance of the load, and also the excitation of the electromagnet due to detecting the reduction of the load exceeding a preset value. May be configured to stop. When the balance is used for dispensing work, the amount of load reduction required to stop the excitation of the electromagnet should be heavier than the amount of load reduction assumed when performing fine adjustment work on the weighing object. It is preferable to set.

  Since the measurement container only needs to be stably magnetized on the measurement table, for example, only the bottom may be formed of a magnetic material.

  The balance set can be suitably used for powder dispensing operations and can be used for objects to be weighed other than powder, such as liquids and solids.

  As described above, the balance set, the balance, and the weighing container of the present invention can reduce the loss of powder during measurement and the risk of erroneous measurement, so that the necessary amount of powder, etc. can be reliably weighed. Suitable for

DESCRIPTION OF SYMBOLS 1 Balance set 2 Balance 3 Measuring container 4 Weighing base 5 Weighing part 6 Magnet 11 Balance set 12 Balance 13 Weighing part 14 Electromagnet 15 Control part 16 Excitation means 17 Weighing means 21 Balance 22 Control part 23 Excitation means 24 Switch

Claims (5)

A weighing container for storing an object to be weighed;
A balance having a weighing platform on which the weighing container is placed;
The weighing container and the balance have magnetic materials that attract each other,
A balance set in which the weighing container and the weighing table are magnetically attached by the magnetic body. A weighing table on which a weighing container for storing an object to be weighed is placed;
A weighing unit for weighing the load of the object to be weighed;
A balance having a magnet for generating a magnetic field above the weighing table. The magnet is an electromagnet,
3. The exciting unit according to claim 2, wherein the weighing unit has excitation means for exciting the electromagnet due to sensing of a load and stopping excitation of the electromagnet due to sensing of reduction or disappearance of the load. The described balance. The magnet is an electromagnet,
The balance according to claim 2, wherein the weighing unit includes selection means for selectively exciting or de-energizing the electromagnet.   A weighing container placed on a weighing table of a balance and having a magnetic material that can be magnetically attached to the weighing table.

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