JP7374779B2 - Two-liquid mixing device - Google Patents

Description

The present invention relates to a two-liquid mixing device for mixing two relatively highly viscous liquids for preparing adhesives, paints, etc.

2. Description of the Related Art Conventionally, there have been various devices for mixing relatively highly viscous two-part adhesives, paints, and the like. A two-liquid mixing device as shown in Patent Document 1 is known. The invention described in Patent Document 1 transfers a certain amount of the first liquid stored in the first liquid storage tank and the second liquid stored in the second liquid storage tank into each mixing mechanism via piping. The mixture is mixed and discharged within this mixing mechanism.

Patent No. 3417548

However, in the invention described in Patent Document 1, the supply amount per fixed time from the first liquid storage tank and the second liquid storage tank to the mixing mechanism is set so that the first liquid and the second liquid storage tank are supplied in advance in a desired amount. Devices that are provided with a function to preset the supply amount of the second liquid are generally used.

However, it has been difficult to confirm how much liquid is actually supplied to the mixing mechanism from each liquid storage tank. In addition, due to equipment malfunctions, the preset supply amount may not be reliably supplied to the mixing mechanism, and a portion of the amount may be returned to the original liquid storage tank from the first introduction body or the second introduction body. There was a case. Also in such cases, it is difficult to immediately grasp the fact that the first liquid or the second liquid is refluxing and the amount thereof. Therefore, the first liquid and the second liquid could not be mixed at a desired mixing ratio that had been set in advance, and there was a possibility that the quality of the mixed liquid would be adversely affected.

Therefore, the present invention is an attempt to solve the above-mentioned problems, and is to provide a two-liquid solution comprising two different liquid storage tanks and a mixing mechanism for mixing the different liquids supplied from these liquid storage tanks. In the mixing device, it is possible to easily check the actual amount supplied from the liquid storage tank to the mixing mechanism, and also to check the situation in which the first liquid or the second liquid is refluxed from the introduction body to the liquid storage tank and the amount thereof. The aim is to obtain a device that can instantly detect.

The present invention provides a mixing mechanism for mixing two liquids, a first introduction body and a second introduction body for introducing the first liquid and the second liquid into the mixing mechanism, and a first introduction body and a second introduction body for introducing the first liquid and the second liquid into the mixing mechanism, respectively. A first liquid storage tank and a second liquid storage tank are provided for supplying a first liquid and a second liquid, respectively, and the mixture is mixed from the first liquid storage tank and the second liquid storage tank through a first introduction body and a second introduction body. Two-liquid mixing in which the first liquid and the second liquid are each supplied to the mixing mechanism, and the excess first liquid and second liquid that are not supplied to the mixing mechanism are returned to the first liquid storage tank and the second liquid storage tank, respectively. This assumes the equipment.

Between the first liquid storage tank and the second liquid storage tank and the first introduction body and the second introduction body, a first introduction body and a second introduction body are provided from the first liquid storage tank and the second liquid storage tank. A first supply pipe and a second supply pipe supplying the first liquid and the second liquid to the body, and surplus first liquid from the first introduction body and the second introduction body to the first liquid storage tank and the second liquid storage tank. and a first reflux pipe and a second reflux pipe for refluxing the second liquid, respectively, and the first supply pipe and the first reflux pipe are equipped with a first supply flow meter and a first supply flow meter capable of measuring the flow rate of the first liquid. In addition, the second supply pipe and the second reflux pipe are respectively equipped with a second supply flowmeter and a second reflux flowmeter that can measure the flow rate of the second liquid, The piping and the second supply piping at least connect the first supply piping and the second supply piping to the first liquid storage tank and the second liquid storage tank, and the first supply flowmeter and the second supply flowmeter. and is inclined upward from the horizontal direction from the connecting portion toward the first supply flowmeter and the second supply flowmeter.

Further, a first snake pump for transferring the first liquid from the first liquid storage tank to the first introducing body is provided between the first liquid storage tank and the first supply pipe, and a first snake pump is provided between the first liquid storage tank and the first supply pipe. A second snake pump for transferring the second liquid from the second liquid storage tank to the second introducing body may be provided between the second liquid storage tank and the second supply pipe.

By providing the first snake pump and the second snake pump in this way, the first liquid and the second liquid can be supplied from the first liquid storage tank and the second liquid storage tank to the first introduction body and the second introduction body. It can be done quickly and smoothly.

With the above configuration, even if the supply pipe has unevenness and viscous liquid passes through it, the air in the supply pipe does not remain and the liquid flows through the supply pipe. Even if bubbles were to occur inside, they would not remain in the unevenness but would move upward by themselves. Therefore, a situation in which the flow rate of liquid passing through the supply pipes from each storage tank is less likely to occur due to air staying in the unevenness in the supply pipes. Therefore, it becomes possible to reliably supply desired prescribed amounts of the first liquid and the second liquid from each storage tank to the mixing mechanism.

As described above, the present invention includes a first supply flowmeter and a first reflux flowmeter that can measure the flow rate of the first liquid in the first supply pipe and the first reflux pipe, and also includes a first supply flowmeter and a first reflux flowmeter that can measure the flow rate of the first liquid. Since the second reflux piping is equipped with a second supply flowmeter and a second reflux flowmeter that can measure the flow rate of the second liquid, the mixing mechanism can be connected to the first liquid storage tank and the second liquid storage tank. You can easily check the actual flow rate supplied to the device over a given period of time.

In addition, due to a malfunction of the device, a predetermined supply amount may not be reliably supplied to the mixing mechanism, and a portion of the supply may be returned from the first introduction body or the second introduction body to the original liquid storage tank. may occur.

Therefore, in the present invention, even if such a situation occurs, the first reflux flow meter and the second reflux flow meter provided in the first reflux piping and the second reflux piping ensure that the liquid is refluxed from the mixing mechanism side to the liquid storage tank side. The reflux amounts of the first liquid and the second liquid can be immediately grasped. Therefore, it is possible to quickly identify any malfunctions in the equipment, and it is also possible to reliably mix the first and second liquids at the desired mixing ratio, thereby maintaining good quality of the mixed liquid. .

1 is a conceptual diagram showing Example 1 of the present invention. FIG. 3 is a partially enlarged conceptual diagram of a second liquid storage tank and a second supply piping portion of Example 1.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings. (1) is a mixing mechanism in which, for example, a first liquid (2) corresponding to a hardening agent and a main ingredient of a two-component adhesive or paint is mixed. The liquid is mixed with the second liquid (4). A first introducing body (3) for introducing the first liquid (2) and a second introducing body (5) for introducing the second liquid (4) are connected to this mixing mechanism (1). ing.

A first liquid storage tank (6) and a second liquid storage tank (6) are connected to the first liquid supply port (8) of the first introduction body (3) and the second liquid supply port (10) of the second introduction body (5), respectively. The liquid storage tank (7) is connected via a first supply pipe (32) and a second supply pipe (34).

The first introduction body (3) and the second introduction body (5) also have a first liquid return port (11) that communicates with the first liquid supply port (8) and the second liquid supply port (10), respectively. ) and a second liquid return port (13). The first liquid return port (11) and the first liquid storage tank (6) are connected to each other by the first reflux pipe (33), and the second liquid return port (13) and the second liquid storage tank (7) are connected to each other by the first reflux pipe (33). By connecting them with the second reflux pipe (35), the first liquid (2) and the second liquid (4) that were not introduced into the mixing mechanism (1) can be transferred to the first introducing body (3) and the second liquid (4). The liquid can be returned to the first liquid storage tank (6) and the second liquid storage tank (7) from the second introducing body (5), respectively.

Further, the first supply pipe (32) and the first reflux pipe (33) are equipped with a first supply flow meter (36) and a first reflux flow meter (37) that can measure the flow rate of the first liquid (2). In addition, the second supply pipe (34) and the second reflux pipe (35) are provided with a second supply flow meter (38) and a second reflux flow meter (40) that can measure the flow rate of the second liquid (4). ) are provided for each.

As described above, by providing the first supply flow meter (36) and the second supply flow meter (38), the mixing mechanism (1) can be connected from the first liquid storage tank (6) and the second liquid storage tank (7) to the mixing mechanism (1). It is possible to easily check the actual supply amount per fixed time.

Here, due to a malfunction of the device, the preset supply amount is not actually all supplied to the mixing mechanism, and a part of it is transferred from the first introducing body (3) or second introducing body (5) to the original source. A situation may arise where the liquid is refluxed to the first liquid storage tank (6) or the second liquid storage tank (7).

However, even if such a situation occurs, the first reflux flow meter (37) and the second reflux flow meter (40) installed in the first reflux pipe (33) and second reflux pipe (35) can be used to detect If the entire set amount of the first liquid (2) or second liquid (4) is not supplied to the mixing mechanism (1), a part of it may be in the first liquid storage tank (6) or the second liquid storage tank ( 7) can be quickly grasped.

Therefore, in the past, it was not possible to quickly grasp the situation of reflux, making it difficult to immediately grasp troubles caused by malfunctions in the equipment, whereas in this embodiment, as described above, the fact of reflux can be quickly detected and the equipment can be improved. It becomes possible to immediately respond to problems, etc. Therefore, troubles caused by device malfunctions can be minimized.

Further, the mixing mechanism (1) is provided with a stirring shaft (12) for stirring and mixing the two liquids. The mixing mechanism (1) is formed with a first introduction port (16) and a second introduction port (17) for introducing the first liquid (2) and the second liquid (4), respectively. There is. A first introduction port (16) for introducing the first liquid (2), which is a non-curing liquid, is connected to the first introduction body (3).

Further, a second introduction port (17) through which a second liquid (4), which is a hardening agent liquid, flows is connected to a second introduction body (5). This second introduction port (17) is arranged and formed in the flow direction of the first liquid (2) with an interval from the first introduction port (16). Further, the first inlet (16) and the second inlet (17) are connected to the first liquid supply port (8) and the second inlet through the first on-off valve mechanism (20) and the second on-off valve mechanism (21). Each of them communicates with the liquid supply port (10).

Therefore, the first liquid (2) supplied from the first liquid supply port (8) or the second liquid (4) supplied from the second liquid supply port (10) is connected to the first on-off valve mechanism (20). Alternatively, it is supplied to the first inlet (16) or the second inlet (17) via the second on-off valve mechanism (21). Further, the first liquid supply port (8) and the second liquid supply port (10) are connected to the first liquid storage tank (6) and the first liquid storage tank (6) via the first supply pipe (32) and the second supply pipe (34). It is connected to a first snake pump (24) and a second snake pump (25) respectively provided in the two liquid storage tanks (7).

The first snake pump (24) and the second snake pump (25) are directly connected to the lower ends of the first liquid storage tank (6) and the second liquid storage tank (7) without using any piping or the like. ing. By connecting the first snake pump (24) and second snake pump (25) to the first liquid storage tank (6) and second liquid storage tank (7) via piping etc. in this way, the structure can be simplified. It is possible to reduce the size of the entire device.

The first snake pump (24) and the second snake pump (25) are connected to a rotating shaft of a prime mover (26) which is arranged at the upper end of the first liquid storage tank (6) and the second liquid storage tank (7). (27), the first liquid (2) and second liquid (4) in the first liquid storage tank (6) and second liquid storage tank (7) are supplied to the first supply pipe. (32) and the second supply pipe (34) to the first liquid supply port (8) and second liquid supply port (10) of the first introduction body (3) and second introduction body (5). It is said that it can be supplied to

By providing the first snake pump (24) and the second snake pump (25) in this way, the first introduction body (3) and the second liquid storage tank (6) and the second liquid storage tank (7) are provided. The first liquid (2) and the second liquid (4) can be quickly and smoothly supplied to the second introduction body (5).

In addition, the first liquid (2) and the second liquid (4) that are not supplied to the mixing mechanism (1) from the first inlet (16) and the second inlet (17) are transferred to the first liquid storage tank (6) and In order to reflux the second liquid storage tank (7), the first reflux pipe (33) and the second reflux pipe (35) are connected from the first liquid return port (11) and second liquid return port (13) to the first liquid return port (11) and the second liquid return port (13). It is connected to a liquid storage tank (6) and a second liquid storage tank (7).

By allowing the surplus liquid to be refluxed in this manner, the first liquid (2) and the second liquid (4) can be used efficiently. Furthermore, even if fine powder such as calcium carbonate or silica agent is mixed into the first liquid (2) and the second liquid (4) for a specific purpose, the first introduction body (3) or the second liquid By refluxing the first liquid (2) or second liquid (4) remaining in the introduction body (5) to the first liquid storage tank (6) or second liquid storage tank (7), the first introduction is completed. Problems such as precipitation of fine powder in the body (3) and the second introduction body (5) and clogging of the introduction route can be effectively prevented.

Furthermore, in this embodiment, as shown in FIG. 2, the first supply pipe (32) and the second supply pipe (34) are connected to the first liquid storage tank (6) and the second liquid storage tank (7). The part (41) side is connected from the first liquid storage tank (6) and the second liquid storage tank (7) to the first introduction body (3) and the second introduction body (5), that is, the first liquid storage tank. (6) and the second liquid storage tank (7), it is formed to be inclined upward from the horizontal direction.

Therefore, even if the first supply pipe (32) and the second supply pipe (34) have unevenness and a viscous liquid passes through the first supply pipe (32) and the second supply pipe (34), the first supply pipe (32) and the second supply pipe (34) (34) This makes it difficult for air to stagnate inside.

Therefore, even if bubbles are generated in the liquid flowing through the first supply pipe (32) and the second supply pipe (34), they will not remain in the unevenness but will move upward by themselves. Therefore, due to air remaining in the unevenness in the first supply pipe (32) and the second supply pipe (34), air is removed from the first liquid storage tank (6) and the second liquid storage tank (7). This makes it difficult for the flow rate of the liquid passing through the first supply pipe (32) and the second supply pipe (34) to decrease. Therefore, the desired prescribed amounts of the first liquid (2) and the second liquid (4) are reliably supplied to the mixing mechanism (1) from the first liquid storage tank (6) and the second liquid storage tank (7). It becomes possible to do so.

Therefore, desired prescribed amounts of the first liquid (2) and the second liquid (4) are supplied to the first supply flowmeter (1) provided in the first supply pipe (32) and the second supply pipe (34), respectively, as described above. 36) and the second supply flow meter (36).

1 Mixing mechanism 2 First liquid 3 First introducing body 4 Second liquid 5 Second introducing body 6 First liquid storage tank 7 Second liquid storage tank 24 First snake pump 25 Second snake pump 32 First supply pipe 33 First 1 Reflux piping 34 2nd supply piping 35 2nd reflux piping 36 1st supply flowmeter 37 1st reflux flowmeter 38 2nd supply flowmeter 40 2nd reflux flowmeter 41 Connection part

Claims (2)

A mixing mechanism that mixes two liquids, a first introduction body and a second introduction body that introduce the first liquid and the second liquid into the mixing mechanism, and a first liquid introduction body and the second introduction body, respectively. and a first liquid storage tank and a second liquid storage tank that supply a second liquid, and the first liquid storage tank and the second liquid storage tank supply the first liquid to the mixing mechanism through the first introduction body and the second introduction body. In the two-liquid mixing device, which supplies the liquid and the second liquid respectively, and returns the excess first liquid and second liquid that are not supplied to the mixing mechanism to the first liquid storage tank and the second liquid storage tank, respectively, the above-mentioned Between the first liquid storage tank and the second liquid storage tank and the first introduction body and the second introduction body, the first liquid storage tank and the second liquid storage tank are connected to the first introduction body and the second introduction body. A first supply pipe and a second supply pipe supplying the first liquid and the second liquid, and surplus first liquid and second liquid from the first introduction body and the second introduction body to the first liquid storage tank and the second liquid storage tank. A first reflux pipe and a second reflux pipe are respectively provided for refluxing the liquid, and the first supply pipe and the first reflux pipe are equipped with a first supply flow meter and a first reflux flow rate that can measure the flow rate of the first liquid. The second supply pipe and the second reflux pipe are each equipped with a second supply flow meter and a second reflux flow meter that can measure the flow rate of the second liquid, The second supply piping includes at least a connecting portion between the first supply piping and the second supply piping and the first liquid storage tank and the second liquid storage tank, and a connection portion between the first supply flowmeter and the second supply flowmeter. A two-liquid mixing device, characterized in that the space between the connecting portion and the first supply flow meter and the second supply flow meter is inclined upwardly from the horizontal direction. A first snake pump for transferring the first liquid from the first liquid storage tank to the first introducing body is provided between the first liquid storage tank and the first supply pipe, and a first snake pump is provided between the first liquid storage tank and the first supply pipe, and 2. The apparatus according to claim 1, further comprising a second snake pump provided between the storage tank and the second supply pipe for transferring the second liquid from the second liquid storage tank to the second introducing body. Two-liquid mixing device.