JP3374512B2 - Automatic powder melting equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic powder melting apparatus for automatically opening a bag in which powder is measured and sealed and supplying a solution to adjust the powder to a predetermined concentration.

[0002]

2. Description of the Related Art Conventionally, for example, a bicarbonate dialysis solution used for a patient with renal failure in a hospital or the like is prepared by quantitatively mixing three kinds of agents A, B and water. Of these, B
In general, powdery substances are often used as an agent, and as an apparatus for automatically dissolving such powders, for example,
JP-A-83250 discloses a package which is transported and held while holding both ends of a packaging bag filled with powder by an endless transporting band having a plurality of mounting portions capable of holding both ends of the packaging bag. An apparatus has been proposed in which the lower central part of the bag is cut and unsealed, the powder is dispensed, and then the powder is weighed and a predetermined amount is put into a dissolution tank, mixed and dissolved with dilution water, and supplied.

[0003]

However, the above-mentioned conventional device has the following problems. That is, in the above device, it is necessary to attach both ends of the powder packaging bag one by one to the plurality of mounting portions provided in the endless conveyor belt, which requires time for preparation and its operation. There is a problem of poor sex. Further, it is necessary to manually remove the empty bag after the powder is dispensed, which is troublesome. There is also a problem that the packaging bag may come off from the mounting portion and fall off due to vibration of the device during transportation. Further, since the lower surface of the center of the packaging bag where the powder is present is cut by a rotary blade etc. while holding both ends of the packaging bag, the powder comes into contact with the rotary blade etc. However, there is a problem that the inside of the device is contaminated due to the occurrence of dust and the scattering of powder.

In view of the above problems in the conventional apparatus, the present invention can omit the work of setting the powder bag in the mounting portion in advance or removing the empty bag after it has been discharged, and it is possible to prevent foreign matter from entering or contamination of the apparatus. It is an object of the present invention to provide an automatic powder melting apparatus capable of preventing the above-mentioned problems and capable of quickly and stably adjusting the dissolution and mixing.

[0005]

In order to achieve this object, an automatic powder melting apparatus according to the present invention is provided with a mounting means for stacking and stacking multiple powder bags in which a predetermined amount of powder is metered and filled, An elevating means for moving the means up and down, a conveying means for conveying the uppermost bag of the powder bags stacked in multiple layers, a bag holding means for holding the conveyed bag and raising the powder bag, Grasping means for gripping the upper end of the erected bag, cutting means for cutting and opening the upper part of the gripped bag, and powder in the bag by inclining the powder-filled bag with the upper part cut and opened. A powder supply means for discharging the body, a dissolution tank having a stirring means for receiving the powder supplied from the powder supply means, and a liquid supply means for supplying a dissolution liquid for dissolving the powder into the dissolution tank. And a concentration measuring means for measuring the concentration of the solution in the dissolution tank in which the powder is dissolved, A storage tank for reserving to feed solution to the next step, it consists those characterized by that and a recovery means for recovering empty bag after dispensing the powder.

The above-mentioned placing means, or the placing means and the carrying means may be separated from the apparatus main body. Further, it is often convenient in use to provide a dissolving tank and a storage tank for each solution so that two or more kinds of solutions can be supplied individually. Further, it is preferable that means for measuring, diluting, and mixing the solution are provided after the storage tank.

[0007]

In the above apparatus, the powder bags in which a predetermined amount of powder has been metered and filled are piled up on the mounting means which moves up and down, and the uppermost bag is conveyed and the bags are held by the holding means. Retention,
Stand up, open the bag by cutting the upper part of the bag, supply the powder in the bag and a certain amount of the dissolution liquid to a dissolution tank having a stirring means, dissolve and mix, then measure the concentration and set the concentration. In contrast to this, determine whether to use it, and transfer a solution with a normal solution concentration to the storage tank. On the other hand, the empty bag after the powder is supplied is released from the holding means and is collected by the collecting means so that the next powder bag can be received. When the solution in the storage tank is supplied to the next step and the liquid level in the tank is lowered, the next operation is repeated to start the next dissolution.

In such an apparatus, a large number of powder bags are successively opened one by one and subjected to a predetermined dissolution treatment, and then a solution having a predetermined concentration is sequentially transferred from the storage tank to the next step. Is sent out. Since it is only necessary to stack the powder bags in multiple layers, the work of setting them in a specific mounting portion is eliminated, and empty bags are automatically collected.
As a result of automation of a series of operations, the manual operation in the conventional apparatus can be omitted, and the dissolution and mixing adjustment can be performed quickly and accurately. In addition, the powder bag is opened with the cutter while it is upright, but since the powder can be cut while it is moved to the lower part of the bag, direct contact between the cutter and the powder can be avoided, and contamination of foreign matter It is possible to prevent the powder from scattering.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic powder melting apparatus according to an embodiment of the present invention will be described below with reference to the drawings. 1 to 7
Shows an automatic powder melting apparatus according to an embodiment of the present invention, and FIGS. 1, 3 to 7 show the operation of this apparatus in order. First, the configuration of the present apparatus will be described with reference to FIGS. 1 and 2 showing the standby state of the present apparatus.

In FIGS. 1 and 2, powder bags X, into which a predetermined amount of powder has been metered and filled, are stacked on the mounting means 1 in multiple layers. The loading means 1 is moved up and down by the lifting means 2 including a cylinder and a motor, and the uppermost bag of the loaded bags is stopped at a predetermined position by a sensor (not shown). Further, the placing means 1 or the placing means 1 and the elevating means 2 is provided with, for example, a moving caster in the lower part so as to be separable from the main body of the automatic powder melting apparatus, and the powder bag is loaded in another place. However, it may be set in the main body of the automatic powder melting apparatus, or a plurality of the above-mentioned placing means may be preliminarily loaded with powder bags and sequentially set in the main body of the apparatus. You may make it the structure integrated in the main body.

Above the mounting means 1, as a conveying means for transferring the uppermost powder bags of the powder bags X stacked in multiple layers,
The gripping means 3 for sucking and gripping with a vacuum or the like, and the moving means 4 for moving the gripping means 3 gripping the uppermost powder bag to a predetermined position.
Is provided. The gripping means 3 is not limited to the above means, but means for sandwiching the tip of the powder bag with a clip or the like, means for arranging pins or claws to grasp a part of the powder bag, and support the rear end of the powder bag. You may In addition, the mounting means 1 is fixed and the gripping means 3, or the gripping means 3 and the moving means 4 are held.
May be moved up and down, and the uppermost powder bag of the loaded powder bags X may be transferred.

A guide plate 5 is provided below the powder bag which has been conveyed to a predetermined position by the conveying means 21. Further, diagonally below it, a box-shaped bag holding means 9 having an open upper part, which can be swung by a motor 7 about a shaft 6 and can be moved in the device width direction by a driving device such as a motor (not shown).
Is provided. A sensor S1 for detecting the presence / absence of a powder bag and a holder 8 for holding the powder bag by vacuum or the like are attached to the bag holding means 9.

Above the position where the bag holding means 9 is rotated upright and moved in the width direction of the apparatus, there is a gripping means 10 for nipping the upper end of the bag according to the size of the powder bag by using a driving means such as an air cylinder. It is provided. Below the gripping means 10,
Cutter blade 11 having a width corresponding to the entire width of the upper bag
There is a, and cutting means 11 is provided which drives the cutter blade 11a back and forth to open the entire width of the bag. Cutting means 1
1 is not limited to the above configuration, and may be a cutting and opening method in which the rotary blade is rotated or a fixed blade such as a knife is moved in the width direction of the bag.

Below the bag holding means 9, a dissolving tank 12 is installed. In the dissolution tank 12, the powder in the bag is dissolved in the dissolution tank 1
2, a fixed hopper 13 for guiding to 2, a liquid supply means 14 for supplying a predetermined amount of the solution into the dissolution tank 12 by a sensor (not shown), a stirring means 15, and the concentration of the solution in the dissolution tank 12. A concentration measuring means 16 is provided.

Below the dissolution tank 12, a storage tank 17 for storing the solution dissolved in the dissolution tank 12 for supplying to the next step is provided. Next to the storage tank 17, a recovery box 18 as a recovery means for storing the empty bag after the powder in the bag is discharged to the dissolution tank 12 and a shooter 19 for guiding the empty bag to the recovery box 18 are provided. is there.

The operation of the above-described device will be described together with its operation with reference to FIGS. 1 and 3 to 7. When the bag loading button is pressed in the state shown in FIG. 1, the loading means 1 is lowered to the lowermost position by the elevating means 2 and the powder bags X can be loaded. The operator opens the front door of the main body and multiplies the loading means 1 with multiple powder bags X into which a predetermined amount of powder has been measured and filled. When the loading of the powder bags X is completed, the front door is closed and the melting start button is pressed, the placing means 1 is moved up by the elevating means 2, and as shown in FIG. Stops at a position where the upper surface of the abuts against the grip 3. The grip portion 3 is connected to a vacuum generator such as a vacuum pump (not shown) and sucks and grips the upper surface of the powder bag. When the gripping portion 3 completes gripping the powder bag, the gripping portion 3 that grips the uppermost powder bag by the transport means 21 moves onto the guide plate 5 and stops, as shown in FIG. When the powder bag is conveyed to a predetermined position, the vacuum of the grip portion 3 is stopped and the powder bag is released from the grip portion 3. The released powder bag falls on the guide plate 5 by its own weight, slides down on the guide plate 5, and is guided into the bag holding means 9 as shown in FIG. When the sensor S1 confirms that the powder bag is guided to the bag holding means 9, the powder bag is sucked and held by the holder 8. When the holding is completed, the bag holding means 9 starts to swing by the motor 7 and stops at the standing position.

The bag holding means 9 moves in the apparatus width direction in the upright state, and the upper portion of the powder bag is inserted into the holding means 10.
When the movement of the bag holding means 9 is completed and the insertion of the upper part of the powder bag is confirmed, the holding means 10 operates the cylinder to hold the upper part of the powder bag as shown in FIG. When the grip of the upper part of the powder bag is completed, the cylinder of the cutting means 11 is operated to advance the cutter 11a, and the upper part is cut and opened over the entire width.
When the upper part of the powder bag is opened, the bag holding means 9 moves onto the hopper 13, and the motor 7 is operated to swing the bag holding means 9 toward the hopper 13 side, and as shown in FIG. The powder of the above is discharged into the dissolution tank 12. Therefore, the bag holding means 9 including the swing mechanism by the motor 7 and the hopper 13 constitute a powder supply means for discharging the powder in the bag. After the powder is discharged, the bag holding means 9 swings to the standing position and moves to the position below the gripping means 10 again. The gripping means 10 is released and the section X1 on the upper part of the bag is stored in the bag holding means 9, swings toward the shooter 19 side, the vacuum of the holding means 8 is released, and the empty bag after the powder is discharged. The section at the upper end of the bag is discharged from the bag holding means 9 and stored in the collection box 18. After that, it swings to the same angle as the guide plate 5, moves to the position of the guide plate 5, returns to the standby state, and prepares for receiving the next powder bag.

On the other hand, in the melting tank 12, after the powder is supplied,
The solution is supplied from the liquid supply means 14 to the dissolution tank 12 by a sensor in a predetermined amount. At the same time, the stirring means 15 is activated to start the dissolution of the powder. After a lapse of a certain time from the start of stirring, the concentration measuring means 16 measures the concentration of the solution, and when the concentration reaches a predetermined range, the stirring means 15 Stop and send solution to storage tank 17. The solution stored in the storage tank 17 is
When the signal from the next process is received, it is supplied to the next process by opening the solenoid valve 20. When the solution in the storage tank 17 is supplied to the next step and the liquid level decreases, the above-described operation from raising the mounting means to shifting to the storage tank 17 is repeated.

A series of operations from the movement and opening of the powder bags thus loaded, to the dissolution and solution adjustment, the empty bag collection, and the supply of the solution to the next process are all automated, and manual work during this period is performed. It becomes unnecessary. Therefore, the predetermined process is performed quickly and accurately. In addition, the powder bag is in an upright state during cutting and bag opening by the cutter 11a, the powder in the bag is moving to the lower part of the bag, and the upper part of the bag in which substantially no powder is present is cut off. There is no direct contact between 11a and the powder. As a result, it is possible to prevent contamination of the device due to mixing of foreign matter and scattering of powder.

[0020]

As is apparent from the above description, according to the automatic powder melting apparatus of the present invention, it is possible to simply stack the powder bags into which the predetermined amount of powder is metered and filled on the mounting means in multiple stages. Since the process from opening the powder bag to melting the powder and processing the empty bag is performed automatically, after installing the powder bag in a predetermined location or setting it, or after discharging the powder in the powder bag, The manual work of removing the empty bag can be omitted, and the powder bag does not fall off during transportation. As a result, the predetermined processing can be performed efficiently, quickly, and stably.

In the powder automatic melting apparatus according to the present invention, the powder bag is erected, the powder in the powder bag is moved to the lower side of the bag, and then the upper part of the bag containing no powder is cut. Since the opening is performed, there is no contact between the cutting blade and the powder, it is possible to prevent contamination of the device due to mixing of foreign matter and scattering of the powder, and it is possible to stably supply the target solution of the powder.

[Brief description of drawings]

FIG. 1 is a schematic side view of a powder automatic melting apparatus according to an embodiment of the present invention in a standby state.

2 is a front view of the device of FIG. 1. FIG.

3 is a side view showing a state in which the placing means is raised and the uppermost powder bag is held in the apparatus of FIG. 1. FIG.

4 is a side view showing a state in which the grasped powder bag is conveyed to a fixed position in the apparatus of FIG.

5 is a side view showing a state where the powder bag is stored and held in the bag holding means in the apparatus of FIG. 1. FIG.

6 is a side view showing a state in which the powder bag is erected and the upper end of the bag is held in the apparatus of FIG.

7 is a side view showing a state in which the holding means is swung and powder is supplied to the melting tank in the apparatus of FIG. 1. FIG.

[Explanation of symbols]

X powder bag 1 Placement means 2 lifting means 3 grip 4 means of transportation 5 information board 6 axes 7 motor 8 holder 9 bag holding means 10 gripping means 11 Cutting means 12 Melting tank 13 hopper 14 Liquid supply means 15 Stirring means 16 Concentration measuring means 17 Storage tank 18 collection box 19 Shoota 20 solenoid valve 21 Transporting means S1 powder bag detection sensor

Continuation of front page (56) Reference JP-A-3-161043 (JP, A) Actual flat 4-83250 (JP, U) Actual flat 4-18540 (JP, U) Actual flat 5-58150 (JP , U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) A61J 3/00 312 A61M 1/14 511 B01F 15/02

Claims (4)

(57) [Claims] 1. A mounting means for stacking and stacking multiple powder bags in which a predetermined amount of powder has been metered and loaded, an elevating means for vertically moving the mounting means, and the multiple stacked powders. Conveying means for transferring the uppermost bag of the bags, bag holding means for holding the conveyed bag and raising the powder bag, holding means for holding the upper end of the raised bag, and the grasped bag A cutting means for cutting and opening the upper part of the bag, a powder supply means for tilting the powder-filled bag with the upper part cut and opened, and discharging the powder in the bag; and a powder supply means for supplying the powder. A dissolution tank having a stirring means for receiving the powder, a liquid supply means for supplying a dissolution liquid for dissolving the powder into the dissolution tank, and measuring the concentration of the solution in the dissolution tank in which the powder is dissolved. Concentration measuring means, a storage tank for storing the solution for supplying to the next step, and the powder An automatic powder melting device, comprising: a collecting means for collecting empty bags after the body is discharged. 2. The automatic powder melting apparatus according to claim 1, wherein the placing means, or the placing means and the conveying means are separated from the apparatus main body. 3. A dissolution tank and a storage tank for each solution are provided so that two or more kinds of solutions can be individually supplied.
The powder automatic melting device according to claim 1 or 2. 4. A metering of the solution after the storage tank,
The automatic powder melting apparatus according to claim 1, 2 or 3, wherein means for diluting and mixing are provided.