KR102259317B1 - Equal distribution of powder material - Google Patents

Abstract

The present invention relates to a quantitative distribution device of a powder material, and more particularly, discloses a quantitative roller having a cavity and a load cell and a unit weight sensor for dispensing a powder material in a quantitative manner, and removes the substance remaining in the quantitative roller. It characterized in that it comprises a washing roller for.
The present invention includes a main frame 30 having a load cell 32 for measuring the total weight of the powder accommodated in the hopper 10 on one side thereof; The main frame 30 is hingedly connected, and a fixed-quantity motor 25 for rotating the fixed-quantity roller 26 and a washing motor 24 for rotating the washing roller 27 are attached to one side part, and a distribution body A tilting frame 22 fastened to the 20; A hopper 10; A distribution body (20) having a powder inlet (23) connected to the hopper (10), supporting the quantitative roller (26) and the washing roller (27), and having a dropping part (20a) and a residue discharge port (20b) Wow; A quantitative roller 26 formed with one or more cavities 29 on the outer circumferential surface; A cleaning roller 27 having a brush 28 on an outer circumferential surface to remove the powder remaining on the quantitative roller 26; A unit weight sensor 50 for measuring the weight of the falling powder; And a controller configured to receive an output value from the load cell and the unit weight sensor 50 and to control the rotational speed of the quantitative motor 25 and the washing motor 24 and store the operation history.

Description

Quantitative distribution of powder material{Equal distribution of powder material}

The present invention relates to a device for dispensing a powder material, and in more detail, a quantitative roller connected to a quantitative motor and having a cavity capable of receiving a powder drug supplied to an inlet in a quantitative amount, and a powder remaining in the quantitative roller. A cleaning roller for removal, a tilting frame for supporting the roller and the motor, a load cell for measuring the total weight of the powder accommodated in the hopper, and a unit weight sensor for measuring a unit weight falling by the rotation of the quantitative roller. It relates to a device for quantitative distribution of a powder material, characterized in that.

There is a need to uniformly and precisely distribute powder substances such as powdered drugs, gunpowder in shells, coffee, spices, and weak salts according to the mixing ratio.

Existing known techniques for quantitative distribution of a powder material disclose first, a method of using vibration, second, a method of using a stirrer, third, a method of using screw rotation, and fourth, a method of quantitative distribution using a gear pump or a lobe.

However, in the case of dispensing a component such as a powdered drug or an explosive of a shell in a quantitative manner, when one dispensing process is finished, a problem has arisen that adversely affects other processes due to the powder material remaining in the dispensing device.

As an example, when dispensing a powdered medicament to another patient after dispensing the medicament on a permeable paper according to a patient, the previous patient's medicament must not remain in the dispensing device. If not, this is because side effects and other symptoms may accompany the patient due to the use of inconsistent drugs.

Therefore, in a device for dispensing a powder material, a technology for preventing the generation of powder material remaining in the dispensing device as well as a precise dispensing function is required.

1. KR 20-0411006,'Powder automatic supply mechanism', registration date: 2006.03.03. vibration 2. KR 10-2018-0092418,'Automatic coffee powder filling device for coffee capsules', Publication date: 2018.08.20. agitator 3. KR 10-2016-0035830,'Quantitative distribution supply device and supply method', Publication date: 2016.04.01. Gear pump and lobe 4. KR 10-1083651,'Powder drug quantitative distribution device', registration date: 2011.11.09. Quantitative distribution using grinding chamber, scalpel cylinder and lifting device

The present invention was invented to solve the above problems, and it is an object of the present invention to disclose a device for dispensing a powder material, which is characterized in that it does not generate a powder material remaining in the dispensing device and a function of dispensing the powder material. .

In order to achieve the above object, the present invention is a quantitative distribution device for evenly distributing the same weight of the powder material, while in contact with the through hole 31 and the body cover 22 on one side of the hopper 10 A main frame 30 having a load cell 32 for measuring the total weight of the received powder, and a hinge support 35 for hinge-fastening with the tilting frame 22; The main frame 30 is hingedly connected, and a fixed-quantity motor 25 for rotating the fixed-quantity roller 26 and a washing motor 24 for rotating the washing roller 27 are attached to one side part, and a distribution body A tilting frame 22 fastened to the 20; A hopper 10 for accommodating a solid material in powder form; It is fastened with one side of the tilting frame 22, has a powder inlet 23 connected to the hopper 10, supports the quantitative roller 26 and the washing roller 27, and the falling part 20a A distribution body 20 having a remnant discharge port 20b; A quantitative roller 26 formed on an outer circumference of one or more cavities 29 capable of receiving a quantitative amount of powder supplied from the powder inlet; A cleaning roller 27 having a brush 28 on an outer circumferential surface to remove the powder remaining on the quantitative roller 26; A body cover 21 that is fastened to one side of the distribution body 20 and forms a sealing structure for the quantitative roller 26 and the washing roller 28; A unit weight sensor 50 that is fastened with the main frame 30 and maintains a certain distance, and measures the weight of the powder falling by the rotation of the quantitative roller 26; The load cell 32 and the unit weight sensor 50 receive output values, control the number of rotations and operation of the quantitative motor 25 and the washing motor 24, and display the user's input button and operation status. And, it is intended to disclose a device for quantitative distribution of a powder material comprising a; controller for storing the operation history.

In addition, the present invention is to supply the powder to the cavity 29 of the quantitative roller 26 at a constant level, one side of the distribution body 20 is a curved surface of the radius curvature of the approximate outer circumferential surface of the quantitative roller 26 (20c) and; It is intended to disclose a quantitative dispensing apparatus for a powder material comprising a; an airtight portion (26a) for maintaining a distance smaller than the diameter of the powder material by the quantitative roller 26 is close to the curved portion (20c).

In addition, the present invention is a powder, characterized in that the load cell 32 for measuring the total weight of the powder accommodated in the hopper 10 is replaced with a torque sensor fastened to the hinge support 35 of the main frame 30 It is intended to disclose a device for dispensing a quantity of a substance.

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With the above solution, the present invention has the following effects.

First, by removing the powder material remaining in the dispensing device due to the cleaning roller 27 provided with the brush 28 in contact with the quantitative roller 26, various kinds of raw materials such as drugs and ammunition should not be mixed. The powder material of can be stably distributed.

Second, the formation of the airtight portion 26a by the combination of the cavity 29 of the quantitative roller 26 and the curved portion 20c of the distribution body 20, and the weight error of ±0.05g due to the unit weight sensor 50 Precise quantitative distribution is possible within the range.

Third, it is possible to manufacture at low cost by applying a load cell and a unit weight sensor with a low manufacturing cost, while ensuring high control reliability.

1 is a perspective view of a preferred embodiment of the present invention.
Fig. 2 is a perspective view (A) and a front view (B) with the paper supply device removed.
3 is a perspective view (A) and a front view (B) of the hopper 10 and the body cover 21 removed.
4 is a perspective view of the metering roller 26 and the cleaning roller 27.
5 is a detailed view of the metering roller 26 and the cleaning roller 27.
6 is a flow chart of a control dispensing in gross weight.
7 is a control flow chart of distribution by unit weight.

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

The embodiments of the present invention are provided to more completely describe the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows. It is not limited to the examples. Rather, these embodiments are provided to make the present disclosure more faithful and complete, and to fully convey the spirit of the present invention to those skilled in the art.

In addition, in the following drawings, the thickness, size, and color of each layer are exaggerated for convenience and clarity of description, and the same reference numerals refer to the same elements in the drawings. As used herein, the term “and/or” includes any one and all combinations of one or more of the corresponding listed items. In addition, in the present specification, "connected" means not only the case where the A member and the B member are directly connected, but also the case where the member A and the member B are indirectly connected by interposing the member C between the member A and the member B. do.

The terms used in this specification are used to describe specific embodiments, and are not intended to limit the present invention.

As used herein, the singular form may include the plural form unless the context clearly indicates another case. In addition, when used herein, "comprise, include" and/or "comprising, including" refers to the mentioned shapes, numbers, steps, actions, members, elements, and/or groups thereof. It specifies existence and does not exclude the presence or addition of one or more other shapes, numbers, actions, members, elements, and/or groups.

In this specification, terms such as first and second are used to describe various members, parts, regions, layers and/or parts, but these members, parts, regions, layers and/or parts are limited by these terms. It is obvious that it is not possible. These terms are only used to distinguish one member, part, region, layer or portion from another region, layer or portion. Accordingly, the first member, part, region, layer or part to be described below may refer to the second member, part, region, layer or part without departing from the teachings of the present invention.

In the present invention, the colors and sizes of the drawings are only intentionally marked by the applicant for easy classification and description of components, and may be changed to various colors and sizes.

The present invention relates to a quantitative distribution device of a powder material, and in more detail, discloses a quantitative roller having a cavity and a load cell and a unit weight sensor for quantitatively dispensing the powder material, and removes the substance remaining in the quantitative roller. It characterized in that it comprises a washing roller for.

In the quantitative distribution device, the distribution device using screws, gears, and lobes, which are known technologies, has excellent quantitative distribution function, but it is troublesome to disassemble and clean all or part of the powder material remaining in the distribution device. Existed.

In addition, even in the case of a distribution device using a vibration stirrer, a material having a weight of a powder material or a material having a large diameter is easily discharged, but the material crushed in the form of a fine powder remains in the distribution device.

Therefore, in the present invention, it is intended to solve the above problem.

First, it aims to secure the quantitative distribution function while maintaining the manufacturing cost inexpensively. To this end, it is intended to disclose a quantitative roller 26 having a plurality of cavities 29 and a quantitative motor 25 which is connected to and rotates with the quantitative roller 26.

In addition, the airtight portion 26a is formed by maintaining a gap between the curved portion 20c and the quantitative roller 26 in the distribution body 20 so that the powder material of a certain weight can be accommodated in the cavity 29. I want to start the technology.

Second, by measuring the weight of the dispensed powder using the load cell 32 and the unit weight sensor 50, quantitative distribution and feedback of weight measurement are possible, so that the allowable weight error range can be precisely controlled to the unit of ±0.05g.

Third, a cleaning roller 27 having a brush 28 and a cleaning motor that rotates the cleaning roller 27 to remove powder substances that may remain in the cavity 29 of the quantitative roller 26 ( 24).

1 is a perspective view of a preferred embodiment of the present invention, FIG. 2 is a perspective view (A) and a front view (B) with a paper feeder removed, and FIG. 3 is a hopper 10 and a body cover 21 removed. It is a perspective view (A) and a front view (B) of the state.

In the present invention, in a quantitative distribution device for distributing the same weight of a powder material evenly, measuring the total weight of the powder accommodated in the hopper 10 while in contact with the through hole 31 and the body cover 22 on one side A main frame 30 having a load cell 32 for and a hinge support 35 for hinge-fastening with the tilting frame 22; The main frame 30 is hingedly connected, and a fixed quantity motor 25 for rotating the fixed quantity roller 26 and a washing motor 24 for rotating the washing roller 27 are attached to one side part, and a distribution body A tilting frame 22 fastened to the 20; A hopper 10 for accommodating a solid material in powder form; It is fastened with one side of the tilting frame 22, has a powder inlet 23 connected to the hopper 10, supports the quantitative roller 26 and the washing roller 27, and the falling part 20a A distribution body 20 having a remnant discharge port 20b; A quantitative roller 26 formed on an outer circumference of one or more cavities 29 capable of receiving a quantitative amount of powder supplied from the powder inlet; A cleaning roller 27 having a brush 28 on an outer circumferential surface to remove the powder remaining on the quantitative roller 26; A body cover 21 that is fastened to one side of the distribution body 20 and forms a sealing structure for the quantitative roller 26 and the washing roller 28; A unit weight sensor (50) that is fastened with the main frame (30) while maintaining a certain distance, and measures the weight of the powder falling by the rotation of the quantitative roller (26); The load cell 32 and the unit weight sensor 50 receive output values, control the number of rotations and operation of the quantitative motor 25 and the washing motor 24, and display the user's input button and operation status. It characterized in that it comprises a; and a controller for storing the operation history.

The main frame 30 has a through hole 31 through which the powder material falling by the rotation of the quantitative roller 26 passes, and the hinge support 35 is hinged with one side of the tilting frame 22. It is desirable.

In addition, the unit weight sensor 50 is fastened with one side of the main frame 30 at a predetermined distance, and the paper 1 is conveyed to the upper end of the unit weight sensor 50 by a conveyor.

In addition, the load cell 32 of the main frame 30 is fastened to one side, and the total weight of the powder accommodated in the hopper 10 is measured while contacting the body cover 22.

In the present invention, the load cell 32 for measuring the total weight of the powder accommodated in the hopper 10 may be replaced with a torque sensor fastened to the hinge support 35 of the main frame 30.

The load cell 32 is a component with high cost-effectiveness in consideration of measurement precision and manufacturing cost, but in some cases it can be replaced with a torque sensor fastened to the hinge support 35, and when replaced with a torque sensor, the structure is simple. The control program can be simplified.

3 is a perspective view (A) and a front view (B) of the hopper 10 and the body cover 21 removed.

The tilting frame 22 is hinge-connected to the main frame 30, is a support to which the quantitative motor 25 and the washing motor 24 are attached to one side portion, and is fastened to the distribution body 20 on the other side portion. .

The hopper 10 accommodates a solid material in the form of powder, is configured in a funnel shape, and continuously supplies the powder material to the powder inlet 23 of the distribution body 20. In some cases, a vibration plate or a stirrer may be additionally configured to facilitate the supply of powder.

The distribution body 20 preferably forms a powder transfer line and a discharge line for discharging the remaining powder, and it is preferable that the lines are separated and discharged. For this purpose, it is preferable that the distribution body 20 includes a falling part 20a from which powder supplied in a fixed quantity falls, and a residue discharge port 20b through which the residue collected by the washing roller 27 is discharged.

In addition, the discharge port 20b of the residue may be connected to a vacuum tube for efficiency of discharge.

4 is a perspective view of the quantitative roller 26 and the washing roller 27, and FIG. 5 is a detailed view of the quantitative roller 26 and the washing roller 27. As shown in FIG.

It is preferable that the quantitative roller 26 has a plurality of cavities 29 capable of receiving the powder supplied from the powder inlet 23 in a quantitative amount on the outer circumferential surface.

The cleaning roller 27 is preferably provided with a brush 28 on the outer circumferential surface to remove the powder remaining in the quantitative roller 26 and the cavity 29.

The brush 28 may be replaced with a brush, a sponge, an elastic member, a natural material, as well as a spray gun, a nozzle, and the like.

The core technology of the present invention is to supply a constant powder to the quantitative roller 26.

Therefore, the present invention is to supply the powder to the cavity 29 of the quantitative roller 26 at a constant level, one side of the dispensing body 20 is a curved portion of the radius curvature of the approximate outer circumferential surface of the quantitative roller 26 (20c) and; It characterized in that it comprises a; and a quantitative roller 26 is close to the curved portion (20c) to maintain a gap smaller than the diameter of the powder material airtight portion (26a).

The size of the hermetic part 26a may vary depending on the powder diameter.

That is, constant powder can be supplied to the cavity 29 by maintaining the outer peripheral surface of the curved portion 20c and the quantitative roller 26 at a distance smaller than the diameter of the pulverized powder.

Along with the quantitative supply, an important technology is a technology for controlling the feedback by measuring the weight of the dispensed powder.

In order to achieve the above object, the present invention discloses a load cell 32 and a unit weight sensor 50. The load cell 32 is to measure the weight of the powder accommodated in the hopper, and the weight sensor 50 is a device for measuring the unit weight distributed by the quantitative roller 26.

The controller is not described in the drawings.

The controller includes a unit weight sensor 50 for measuring the weight of the powder falling by the rotation of the quantitative roller 26; The load cell 32 and the unit weight sensor 50 receive output values, control the number of rotations and operation of the quantitative motor 25 and the washing motor 24, and display the user's input button and operation status. And, it includes a function to save the operation history.

The operation history of the controller performs an important function when dispensing drugs or chemicals. That is, in the case of a chemical substance that reacts when mixed or a drug that is dangerous to a patient when used in combination, it is possible to change the dispensing operation from washing to the next process with reference to the operation history.

6 is a control flow chart of distribution by gross weight, and FIG. 7 is a control flow chart of distribution by unit weight.

Quantitative dispensing can be largely set in two modes.

The first is when the powder contained in the hopper needs to be accurately divided, and the second is when the powder contained in the hopper needs to be distributed with a constant weight regardless of the powder.

When dividing based on the total weight of the powder accommodated in the hopper, the distribution operation should be controlled based on the signal of the load cell 32 and the output value of the unit weight sensor 50.

Accordingly, the present invention provides a quantitative distribution device for evenly distributing the same weight from the total weight supplied of the powder material, the step of measuring the total weight accommodated in the hopper 50 by the load cell 32 (S1); After the step (S1), setting the number of distributions and the target weight range by the controller (S2); After the step (S2), when the powder falls due to the rotation of the quantitative roller 26 by the operation of the quantitative motor 25, the unit weight sensor 50 located under the paper measures the weight (S3); After the step (S3), when the measured value of the unit weight sensor 50 reaches a set target weight, stopping of the quantitative motor 25 and rotating the paper roller 1 (S4); including Thus, it is characterized in that the above process is repeatedly performed as many times as the number set by the controller.

Due to the two components that measure the weight, such as the load cell 32 and the unit weight sensor 50, the distribution function can be improved and the accuracy of the quantitative distribution can be controlled while feedback-controlling.

In addition, a quantitative dispensing apparatus for distributing a set weight of a powder material of the present invention includes the steps of setting the number of dispensing and a target weight range by a controller (L1); After the step (L1), when the powder falls due to the rotation of the quantitative roller 26 due to the operation of the quantitative motor 25, the unit weight sensor 50 located under the paper measures the weight (L2); After the step (L2), when the measured value of the unit weight sensor 50 reaches a set target weight, stopping of the quantitative motor 25 and rotating the paper roller 1 (L4); including Thus, it is characterized in that the above process is repeatedly performed as many times as the number set by the controller.

With the above configuration, the present invention has the following effects.

First, by removing the powder material remaining in the dispensing device due to the cleaning roller 27 provided with the brush 28 in contact with the quantitative roller 26, various kinds of raw materials such as drugs and ammunition should not be mixed. The powder material of can be stably distributed.

Second, the formation of the airtight portion 26a by the combination of the cavity 29 of the quantitative roller 26 and the curved portion 20c of the distribution body 20, and the weight error of ±0.05g due to the unit weight sensor 50 Precise quantitative distribution is possible within the range.

Third, it is possible to manufacture at low cost by applying a load cell and a unit weight sensor with a low manufacturing cost, while ensuring high control reliability.

1: paper, 2: paper support,
10: hopper, 20: dispensing body, 21: body cover,
22: tilting frame, 23: powder inlet, 24: washing motor,
25: metering motor, 26: metering roller, 27: washing roller,
28: brush, 29: cavity,
30: main frame, 31: through hole, 32: load cell,
35: hinge support, 50: unit weight sensor,
20a: falling part, 20b: residue outlet,
20c: curved portion, 26a: airtight portion.

Claims (5)

In the quantitative dispensing device for evenly distributing the same weight of the powder material,
A through hole 31 on one side thereof, a load cell 32 for measuring the total weight of the powder accommodated in the hopper 10 while in contact with the body cover 22, and a hinge support for hinge-fastening with the tilting frame 22 ( A main frame 30 having 35;
The main frame 30 is hingedly connected, and a fixed-quantity motor 25 for rotating the fixed-quantity roller 26 and a washing motor 24 for rotating the washing roller 27 are attached to one side part, and a distribution body A tilting frame 22 fastened to the 20;
A hopper 10 for accommodating a solid material in powder form;
It is fastened to one side of the tilting frame 22, has a powder inlet 23 connected to the hopper 10, supports the quantitative roller 26 and the washing roller 27, and the falling part 20a A distribution body 20 having a remnant discharge port 20b;
A quantitative roller 26 formed on an outer circumference of one or more cavities 29 capable of receiving a quantitative amount of powder supplied from the powder inlet;
A cleaning roller 27 having a brush 28 on an outer circumferential surface to remove the powder remaining on the quantitative roller 26;
A body cover 21 that is fastened to one side of the distribution body 20 and forms a sealing structure between the quantitative roller 26 and the washing roller 28;
A unit weight sensor (50) that is fastened with the main frame (30) while maintaining a certain distance, and measures the weight of the powder falling by the rotation of the quantitative roller (26);
The load cell 32 and the unit weight sensor 50 receive output values, control the number of rotations and operation of the quantitative motor 25 and the washing motor 24, and display the user's input button and operation status. And, a controller for storing the operation history; quantitative distribution device of the powder material comprising a.
The method of claim 1
In order to constantly supply powder to the cavity 29 of the quantitative roller 26,
One side portion of the distribution body 20 includes a curved portion 20c having a radius curvature of an approximate radius to the outer peripheral surface of the quantitative roller 26;
And an airtight portion (26a) in which the quantitative roller (26) is adjacent to the curved portion (20c) to maintain a distance smaller than the diameter of the powder material.
The method of claim 1
The load cell 32 for measuring the total weight of the powder accommodated in the hopper 10,
Quantitative dispensing device of powder material, characterized in that it is replaced with a torque sensor fastened to the hinge support (35) of the main frame (30).
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