JPS60221148A - Device for controlling concentration of mold releasing agent - Google Patents

Abstract

PURPOSE:To control adequately and automatically the concn. of a recovered mold releasing agent soln. and to enable effective reuse thereof by providing means for measuring and displaying the soln. concn. in a storing and adjusting tank for said soln. and supplying a diluent or original liquid according to the concn. thereof. CONSTITUTION:The mold releasing agent soln. (a) recovered from a metallic mold 4 passes through the 1st and 2nd separating tanks 11, 12 from a recovering tank 8 and after impurities C, etc. are separated away from said soln., the soln. is introduced into the storing and adjusting tank 42. The concn. of the soln. (a) is measured in the tank 42 by a measuring device 43 and is displayed on a densitometer 44. In case that the soln. (a) does not reach the prescribed conc., a relay 45 is energized and the original liquid or diluent of the mold releasing agent in an original liquid tank 48 is supplied into the tank 42. The soln. (a) regulated to the prescribed concn. is returned to a tank 53 and is used again.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an M-type agent honeycomb management device, which is used in metal casting, die casting, etc. to -C gold. This invention relates to a method in which the temperature of the 1411 mold agent sprayed onto the mold surface of the mold is controlled so that it can be reused.

[Conventional technology]

Conventionally, during casting such as die casting, a solution of a mold release agent is sprayed onto the mold to improve the mold releasability of the product.
There is a tendency for the excess solution that flows out of the mold after injection into the mold to be directly disposed of as factory waste.

[Problems that the invention attempts to solve]

- According to the conventional method of treating the solution of type II agent, the solution of the former type agent is discharged as factory waste, which is not only inconvenient, but also causes problems such as polluting the environment and causing pollution problems. are doing.

However, when the mold release agent that flows out from the mold is collected and reused at the mold stage, cooling water from the mold may be mixed into the solution of the mold release agent. Not only that, but also impurities such as hydraulic oil for mold operation, chips, and lubricating oil are often mixed in. Therefore, it is necessary to reuse the recovered mold release agent solution again for the mold. What we do is product &R'I
There are many problems with N that make it impossible.

Therefore, the present invention was made in view of the above points, and the solution of the mold release agent injected into the mold is collected and stored, the concentration of this solution is measured, and the concentration is adjusted to a predetermined concentration that can be re-injected into the mold. It is an object of the present invention to provide a mold release agent concentration control device that allows a mold release agent solution to be used experimentally and prevents the occurrence of pollution problems by adjusting settings.

[Means for solving problems]

The present invention provides a storage adjustment tank for collecting and storing a mold release agent solution injected into a mold, a measurement mechanism for measuring the concentration of the solution in this storage adjustment tank, and a measurement mechanism for measuring the concentration of the solution. A concentration word indicating the measured concentration of the solution is connected, and a diluted solution or Ili; The liquid supply IaWI set to 1 is connected to the above measurement mechanism.

[Function] With the present invention configured as described above, the release agent solution collected in the storage adjustment tank is measured by a measurement unit, and this measured value is expressed as a concentration of 1.

In addition, if the 'cJ degree of the solution measured by the measuring mechanism is less than a predetermined concentration, the drive mechanism is activated to drive the liquid supply mechanism, and the liquid is added to the storage adjustment tank according to the current measurement status of the solution. A diluent or stock solution is supplied and set to a predetermined ff1li required to inject the solution into the mold.

In this way, the concentration of the recovered mold release agent solution is automatically managed, and the solution can be prepared for injection onto the mold while always maintaining an appropriate concentration.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, 1 is a casting section, and this casting section 1 is provided with a die 4 consisting of a fixed die 2 and a movable die 3. The movable die is a movable die consisting of a cylinder, a pump, piping, etc. The mechanism 5 advances and retreats from the fixed mold 2, and the respective mold surfaces 6 and 7 form a cavity when the molds are assembled.
It has become so.

Further, in the casting section 1, a recovery tank 8 is provided below the mold 4 and the movable mold gl=4M5.

Next, a fourth part 9 is formed at the bottom of the recovery IQ 8,
One end of a communication path 10 is communicated with this recess 9, and a separation tank is connected to the other end of this communication path 10))1
The separation tank 11 is communicated with -C. This first minute vlJ
Inside the tank 11, there are a plurality of cut walls 12 and 13, which are spaced at predetermined intervals and whose height is gradually lowered in the flow direction, forming a bottom plate 14.
A discharge passage 17.18 is formed in the guide plate 15.1G with a frontage at the lower end on one side of each of the cutouts 12.13, and each of these υ1 outlet passages 17°18
An overflow discharge 11 part 17d is provided at the tenth end.

18a is formed by bending in the flow direction. In addition, contaminating impurities such as oil are discharged from D1 at the upper end between each of the partition walls 12 and 13, at approximately the same height as the respective discharge ports 17a and 18a. 1-1 exit path 20° 21, 22 are formed, and each of these 1-1) exit path 2
0.21.22 is disposed of via the conduit 23.24.25! II! There is a pillow connected to tank 2G. A pump 27 is provided on the right side of the discharge path 22 of the first separation tank 11, and is connected to the pump 27 and connected to the first separation tank 11 via a conduit 28 to the second separation tank. The separation tanks 29 are connected to each other. This second minute I! iII tank 2
9 includes a plurality of partition walls 30, 31 at predetermined intervals.
are erected on the bottom plate 32, and discharge passages 35.36 are formed by respective guide plates 33.34 having lower ends on one side of each of the partition walls 30.31, and discharge passages 35.36 are formed in each of the discharge passages 35.36.
Overflow outlet 35i1 at the upper end of 313
, 36a are formed. In addition, each of the above partition walls 30.3
-L portion between 1 and 3, each of the above discharge port portions 35a,
36a position (J) There is oil etc. at the same height position.
Exhaust passages 37 and 38 are formed in which impurities 19 are discharged, and each exhaust passage 37 and 38 returns to the first separation section of the first separation 41'i 11 through a communication passage 39. and reprocessed.

Next, a supporting frame 40 is protruded from the upper outer side wall of the second portion t1 tank 29 in the flow direction, and a plurality of filters 41 made of, for example, sponge are stacked vertically on this supporting frame 40 and can be attached or removed. The filters 41 arranged above and below each have a mesh that gradually becomes thinner toward the bottom.

As the filter 41, a porous refractory, a porous metal plate, a sponge, P paper, etc. are used.

Next, a storage adjustment tank 42 is provided below the filter 41. A measuring device 43 as a measuring mechanism for measuring the concentration of the solution is provided in the storage adjustment tank 42, and a meter 8144 connected to this measuring device 43 is provided.
A relay 45 as a side of the drive a is connected to the relay 45, and a pump 46 as a side of the liquid supply B1 that supplies the stock solution or diluted solution to the storage adjustment 4142 is connected via a conductor 47. Installed in tank 48 ()
At the same time, the discharge l]50 of the conduit 49 connected to this pump 46 faces the storage adjustment tank 42.
It is opened. In addition, a pump 5 is installed in the storage adjustment tank 42.
1 is provided, and a solution tank 53 is connected to this pump 51 via a conduit 52. A release agent stock solution tank 54 and a diluted solution tank 55 are provided in this solution tank 53, and a conduit 56 for introducing the diluted solution is connected to this diluted solution tank 55, and a conduit 56 is connected to the diluted solution tank 55 in the middle of this conduit 5G. Valve 57 and conduit 5
The stock solution tank 54 is communicated via 8. and,
The stock solution φ54 is automatically diluted at a predetermined magnification in the diluent tank 55, and a discharge pipe 59 is connected to the solution tank 53 as a release agent solution a. from the nozzle 60 attached to the mold 4
It is designed to be injected into the air.

It is configured like this! , : J3 in the thing, solution [53
In this step, a stock solution of a water-soluble one-mulsion type mold release agent for aluminum and zinc die casting is diluted to a predetermined concentration with dilution water, and this solution a is pumped through a discharge pipe 59 by driving a driving means (not shown). At the same time, #Jl is applied from the nozzle 60 at the tip to the mold surfaces 6 and 7 of the fixed mold 2 and the movable mold 3 along with the mold 4, and a mold release agent made of solution a is applied to the mold surfaces 6 and 7. A film is formed.

Next, ゛-Excess solution a sprayed onto the mold surface 6.7.
is recovered from the mold 4 into the collection tank 8, and impurities C such as cooling water of the mold 4, hydraulic oil of the mold movable i structure 5, chips, and lubricating oil are also collected into the collection tank 8.

The solution a containing impurities C recovered in the recovery tank 8 is introduced into the first separation section of the first separation tank 11 through the communication path 10, and is sequentially introduced from each extraction path 17 and 18. It is overflowed and flows into the final separation section. At this time, in the first portion tillt4Fi11, discharge passages 20, 21 and 22 are formed close to each discharge passage 17 and 18 for each separation part at a height that allows for A'-puff flow, so that the inflow can be carried out sequentially. Impurities C such as oil floating in solution A are
A-purfuses into the output channels 20, 21 and 22 and is separated and removed from the solution a.
24 and 25, and are captured and processed in the waste treatment tank 2G.

Then, by driving the pump 21, the solution a in the separation tank 11 of @1 from which impurities C have been separated is introduced into the first separation section of the second separation tank 29 through the conduit 28. Both of them are sequentially overflowed from each discharge path 35.3G and flowed into the last separation section.

At this time, impurities C such as oil floating in the solution a that sequentially flows in are sequentially overflowed into the discharge passages 37 and 38 to be further separated and removed from the solution a, and these impurities are passed through the communication passage 39 to the above-mentioned The waste is returned to the first separation tank 11 and sequentially captured and processed in the waste treatment tank 26.

Solution a then overflows from the second separation tank 29 and passes through the filter 41. This filter 41
It is roughly filtered to remove dust, oil scum, soil, carbon, etc., and then introduced into the storage adjustment tank 42.

In this storage adjustment tank 42, the concentration of solution a is measured by a measuring device 43, and this measured concentration is displayed on a concentration meter 44. However, if the solution a does not have a predetermined CJ degree, When the relay 45 is energized, the pump 46 is driven, and the pump 46 automatically supplies the stock solution or diluted solution of the mold release agent in the stock solution tank 48 to the storage adjustment tank 42 through the conduit 49. The solution a is supplied until the concentration of the solution a reaches a predetermined concentration equal to the concentration of dissolved Ma in the solution tank 53.

Then, when the solution a reaches a predetermined concentration, it is measured by the measuring device 43 and displayed on the 5iit 44, and the relay 45 is de-energized and the operation of the bomb 46 is stopped.

Next, when the pump 51 provided in the storage adjustment tank 42 is driven, the adjusted solution a is returned to the solution tank 53 via the conduit 52 and is reused.

In the above case, the concentration of the release agent solution can be freely set depending on the casting product.

In addition, since the filter 41 is detachably attached, it is easy to shake and remove, and in the case of refractories and porous metal plates, it will not be burned, and in the case of sponge, paper, etc., it will not be amortized in the incineration path.
It is a good idea to do so.

〔Effect of the invention〕

According to the present invention, the solution of the -1ift mold agent injected into the mold is collected in the storage adjustment tank, and the concentration is constantly measured by the measuring mechanism, and the measured temperature is displayed next to the concentration. At the same time, if the measured eJlf is less than a predetermined cJ standard, the liquid supply mechanism is activated to supply diluted liquid or undiluted solution to the recovered solution to a predetermined concentration that can be injected into the mold. Adjustments can be made with certainty.

Therefore, the concentration of the release agent solution collected during storage adjustment (n) can be automatically controlled to the appropriate concentration by injection into the mold, so that the release agent solution injected into the mold is collected at the factory. This can be effectively used without discharging the waste liquid as it is.
Since it can be reused, it is extremely economical, greatly contributes to productivity, and is less likely to cause pollution problems that contaminate the environment.

[Brief explanation of drawings]

The figure is an explanatory diagram showing an embodiment of the release agent concentration control device of the present invention. 4...Mold, 42...Storage adjustment tank, 43...Measuring mechanism,
44...Thermometer, 46...Liquid supply mechanism.

Claims (1)

[Claims] (1) A storage adjustment tank that collects and stores the release agent solution injected into the mold, a measurement mechanism installed in the storage adjustment tank that measures the temperature of the solution, and a measurement mechanism connected to the measurement mechanism. A thermometer that reads the temperature of the solution measured by the measurement mechanism supplies the diluted solution or the stock solution into the storage adjustment tank according to the concentration of the 2L solution measured by the measurement mechanism, and the solution is 1. A release agent concentration control device, comprising: a liquid supply shield for setting a predetermined temperature.