KR20040097544A - Apparatus for experiment of polyurethane foam - Google Patents

Abstract

PURPOSE: A polyurethane foam experiment equipment for accurately simulating a stirring process in a laboratory is provided to enable properties of polyurethane foam reactants to be grasped more efficiently. CONSTITUTION: The polyurethane foam experiment equipment comprises: a receiving vessel(100) having an opening at its upper portion and an accommodating space for polyurethane reactants; a receiving vessel rotating unit for rotating the receiving vessel(100); an eccentric stirring rod(300) mounted in the vicinity of the bottom surface of the receiving vessel(100) through the opening of the receiving vessel(100); a stirring rod rotating unit(400) for rotating the eccentric stirring rod(300); and a controller for controlling the receiving vessel rotating unit and the stirring rod rotating unit(400).

Description

Polyurethane Foam Tester {APPARATUS FOR EXPERIMENT OF POLYURETHANE FOAM}

The present invention relates to an apparatus for testing polyurethane foam, and more particularly, to an apparatus for precisely simulating a stirring process for reaction of a polyurethane foam reactant in a real factory to be more similar to the actual situation.

Polyurethane is a generic term for a polymer compound that chemically contains a certain amount or more of urethane bonds, and a polymer addition reaction of a compound having at least two hydroxyl groups (-OH) and a polyfunctional isocyanate (-NCO) It refers to a plastic formed by the (urethane), the urethane bond is obtained by the addition reaction of the reactive material polyisocyanate (polyisocianate) and the activated hydrogen compound (polyol).

Depending on the type of reactant, component ratio, reaction time, temperature and other reaction conditions, polyurethane compounds having various kinds of properties and shapes can be obtained. Polyurethane foam is a foaming agent in the process of forming polyurethane. By adding and expanding, it is possible to obtain a foam molding of a desired shape by injecting and reacting the reactants into a mold of a predetermined shape.

Looking at the manufacturing process of the polyurethane foam molding is as follows.

Each reactant is placed in a feed tank and agitated while maintaining a constant processing temperature. A slow stirrer maintains a uniform temperature distribution and a uniform phase.

Each reactant is then circulated through a circulation pump, which is precisely and independently adjusted which is conveyed from the tank to the mixing head via pipelines, hoses and the like.

The reactant stocks that reach the mixing head are mixed at a predetermined ratio.The polyol and the isocyanate are introduced from the mixing chamber and start the addition reaction, and the liquid reactant before the polymerization is completed leaves the mixing chamber and enters the mold. It is discontinuously introduced.

After the reaction is completed, the final product can be obtained by removing the molding from the mold, and the stock solution mixture is continuously introduced into the conveyor apparatus to prepare the molding in the form of a plate or slab, which is then chopped to produce the final product.

The most important in such a manufacturing process is a process of mixing and foaming each reactant at a predetermined ratio in the mixing head, and a generally used process is classified into a low pressure process using a low pressure foamer and a high pressure process using a high pressure foamer.

In the low pressure foamer, each reactant before mixing is individually circulated through the mixing head at low pressure, and then the reactant is discharged by the automatic opening of the mixing valve, whereby each reactant is hollowed out at a predetermined rate. into the cylinder and stirring to cause an addition reaction.

In the high pressure foaming machine, each reactant before mixing is independently circulated through the mixing head and the supply tank by a circulation pump in a high pressure state, and then discharged upwards in the stock state by the control piston of the mixing head, and each reactant discharged Are simultaneously encountered at the nozzles of the mixing head.

After the predetermined amount has been discharged, the control piston is closed and at the same time the circulation passage is opened to recycle the non-discharged components, which also serves to push out the remaining reactants in the mixing chamber.

On the other hand, one of the most important factors affecting the quality of the polyurethane foam is the quality of the reactants. In order to test their quality in the laboratory in advance, the actual foaming process as described above is simulated in the laboratory. It is necessary to see

Polyisocyanates (polyisocianate) and activated hydrogen compounds (polyols), which are the reactants of polyurethane foams, cause addition reactions and foaming reactions in a very short time, so that each component is required to be uniformly stirred during the short time.

In the related art, since no other experimental apparatus has been developed for this purpose, the experimenter stores the reaction materials at a predetermined ratio in a storage container such as a beaker, and then adds and foams the reaction to the polyurethane foam molding while stirring with a low sound bar. Has been used to determine the quality of the reactants.

In view of the characteristics of the polyurethane foam reactants that the reaction is terminated in a very short time, it is difficult to completely stir the reactants contained in the beaker by hand for such a short time, so an accurate judgment on the quality of the reactants is made. This has been pointed out as a problem in that it is virtually impossible.

In addition, the reaction time by agitation is also one of the main factors for determining the quality of the reactant. As in the conventional method, the reaction time and the quality of the reactant are accurately determined by the method of directly stirring by the experimenter's hands. It has also been pointed out as a problem in that it cannot be grasped.

The present invention is to solve the above problems, to accurately and completely achieve the stirring of the reaction material of the polyurethane foam for a predetermined time, to be able to simulate the actual polyurethane foam stirring process very close to the actual Accordingly, it is an object of the present invention to provide a polyurethane foam experimental apparatus that can more efficiently grasp the quality of the polyurethane foam reactants in the laboratory.

1 to 5 show an embodiment of the present invention,

1 is a front view

2 is a side view

Figure 3 is a perspective view of the reactant container and the eccentric stirring rod

Figure 4 is an exploded perspective view of the support plate and the clamp

5 is a perspective view of the clamp

** Description of the symbols for the main parts of the drawings **

1: main body 100: reaction material container

200: storage container rotating means 210: motor

211: rotating shaft 221: storage container mounting portion

220: rotating support plate 300: eccentric stirring rod

310: stirring port 400: stirring rod rotating means

500: up and down driving means of the stirring rod 510: support shaft

520: guide 521: stir bar rotating means fixed portion

522: Shatterproof cover fixing part 523: Pneumatic cylinder connection

524: support shaft through hole 530: pneumatic cylinder

600: shatterproof cover 610: through hole stirring rod

700: storage container departure prevention means 710: clamp

711: contact portion 712: mounting bolt through hole

713: support portion 714: storage container guide portion

720: clamp mounting hole 730: clamp mounting bolt

800: stirring rod eccentric moving means

In order to achieve the object as described above, the present invention, an opening is formed in the upper portion, the reaction material storage container 100 formed therein the receiving space of the polyurethane foam reactant material; Storage container rotating means (200) for rotating the reactant storage container with the axis of rotation (O1) in the vertical center line of the reaction material storage container; A lower end is mounted adjacent to the bottom surface of the reactant container 100 through an opening of the reactant container 100, and an eccentric rotation axis O2 with respect to the axis of rotation O1 of the reactant container 100. An eccentric stirring rod 300 mounted to have; A stirring rod rotating means 400 for rotating the eccentric stirring rod 300 around the vertical center line of the eccentric stirring rod 300 with a rotation axis O2; A control unit (not shown) for controlling rotation of the storage container rotating means 200 and the stirring rod rotating means 400; It presents a polyurethane foam experimental apparatus comprising.

Here, it is preferable that the lower end of the eccentric stirring rod 300 has a structure further provided with a stirring hole 310 for expanding the contact area with the polyurethane foam reactant contained in the reactant container 100. Do.

In addition, it is preferable that the stirring rod rotating means 400 and the eccentric stirring rod 300 are further provided with a stirring rod vertical drive means 500 for reciprocating the vertical direction.

In addition, an opening is formed in a lower portion of the upper side of the reaction material storage container 100, a storage container storage space in which the reaction material storage container 100 is stored is formed therein, and the eccentric stirring rod 300 on the top. A stirring rod through hole 610 is formed therethrough, and a scattering prevention cover 600 mounted on the stirring rod vertical drive means 500 and reciprocating in the vertical direction together with the eccentric stirring rod 300 is further provided. It is preferable to take the provided structure.

In addition, the receiving container rotating means 200 includes a motor 210 having a vertical axis of rotation 211 in the upper portion; The rotary support plate 220 is installed on the upper portion of the rotating shaft 211 and provided with an accommodating container mounting portion 221 and an accommodating container detachment preventing means 700 mounted thereon with the reactant accommodating container 100 at an upper core portion thereof. ; It is desirable to take a structure that includes.

In addition, the storage container departure preventing means 700 is a contact portion 711 which the inner surface is in contact with the outer surface of the reaction material storage container 100, and extends outward from the lower end of the contact portion 711 and clamped to the core A plurality of clamps 710 having a support part 713 having a mounting bolt through hole 712 and a storage container guide part 714 extending from the upper end of the contact part 711 to have a predetermined inclination; A clamp mounting hole 720 spaced apart from the center of the rotation receiving plate 220 and formed in plural in a radial symmetry; A plurality of clamp mounting bolts 730 that are detachably mounted to the clamp mounting holes 720 through the clamp mounting bolt through holes 712; It is desirable to take a structure that includes.

In addition, it is preferable that the clamp mounting hole 720 takes a structure in which a plurality of clamp mounting holes 720 are formed to have a predetermined distance from the center of the rotation supporting plate 220 to the outside.

In addition, the eccentric stir bar 300 and the eccentric stir bar 300 and the stirring rod up and down so as to be adjacent or spaced apart in parallel with the rotation axis (O1) of the reaction material container 100. It is preferable to take the structure further provided with the stirring rod eccentric moving means 800 for horizontally moving the means 500.

In addition, the stirring rod vertical drive means 500 includes a support shaft 510 installed in parallel with the rotary shaft (O1) of the reaction material container 100 and the rotary shaft (O2) of the eccentric stirring rod (300); Stirring rod rotating means fixing portion 521 is formed so that the stirring rod rotating means 400 is fixed to one side end, shatterproof cover fixing portion 522 extending downward from the stirring rod rotating means fixing portion 521 And a guide hole 520 having a pneumatic cylinder connecting portion 523 formed at the other end, and a support shaft through hole 524 formed so that the support shaft 510 penetrates the core portion; A pneumatic cylinder 530 connected to the pneumatic cylinder connection 522; It is desirable to take a structure that includes.

In addition, the control unit (not shown) preferably takes a structure for controlling the storage container rotating means 200 and the stirring rod rotating means 400 to start the rotation at the same time and stop the rotation at the same time.

In addition, the control unit (not shown) preferably takes a structure for controlling the vertical drive of the stirring rod vertical drive means 500 together.

Here, the control unit (not shown) starts the rotation of the storage container rotating means 200 and the stirring rod rotating means 400, and drives the stirring rod vertical drive means 500 downward to the storage container rotating means At the same time as the rotation of the 200 reaches a predetermined speed, it is preferable to take a configuration in which the eccentric stirring rod 300 and the scattering prevention cover 600 are controlled to stop at a predetermined position.

Further, the control unit (not shown) is the storage container rotating means 200 and the stirring rod rotating means 400 at the same time start the stop of the rotation, the stirring rod up and down driving means 500 to drive the eccentric It is preferable to take the structure which controls the stirring rod 300 and the shatterproof cover 600 to stop at a predetermined position.

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

1 to 5 show an embodiment of the present invention, Figure 1 is a front view, Figure 2 is a side view, Figure 3 is a perspective view of the reactant container and the eccentric stirring rod, Figure 4 is an exploded view of the rotating support plate and the clamp 5 is a perspective view of the clamp.

As shown in Figures 1 to 3, the present invention is an opening is formed in the upper portion, the reaction material receiving container 100 formed therein the receiving space of the polyurethane foam reactant material; Storage container rotating means (200) for rotating the reactant storage container with the axis of rotation (O1) in the vertical center line of the reaction material storage container; A lower end is mounted adjacent to the bottom surface of the reactant container 100 through an opening of the reactant container 100, and an eccentric rotation axis O2 with respect to the axis of rotation O1 of the reactant container 100. An eccentric stirring rod 300 mounted to have; A stirring rod rotating means 400 for rotating the eccentric stirring rod 300 around the vertical center line of the eccentric stirring rod 300 with a rotation axis O2; A control unit (not shown) for controlling rotation of the storage container rotating means 200 and the stirring rod rotating means 400; It is configured to include.

That is, the reactant storage container 100 is mounted to rotate about the rotation axis O1 by the storage container rotating means 200 and is mounted adjacent to the bottom of the storage container 100. Is configured to rotate around the rotating shaft (O2) formed to have an eccentricity with respect to the rotating shaft (O1) by the stirring rod rotating means (400).

Therefore, when the reactant is accommodated in the reactant container 100 at a predetermined ratio and the storage container rotating means 200 and the stirring rod rotating means 400 are operated, the reactant containing the rotating shaft O1 as the axis is accommodated. By reacting the rotational motion of the container 100 and the rotational motion of the eccentric stirring bar 300 with the eccentric rotation axis O2 as the axis, the reactants may be uniformly stirred.

When the reaction is started by the mixing of the reactants, since all the reactions of the substances cannot occur at the same time, some of them will coexist in the undiluted state before the reaction, and the other part in the foam state after the reaction, the reactant storage container 100 Rotating will cause the reactant in the undiluted state to be driven near the inner circumferential surface of the reactant storage container 100 by the centrifugal force. It can be said that the features of the present invention.

In order to achieve such stirring more efficiently, a stirring hole 310 is further provided at the lower end of the eccentric stirring rod 300 to enlarge the contact area with the polyurethane foam reactant stored in the reactant storage container 100. It is desirable to take the structure.

Here, the stirring port 310 is to increase the contact area between the eccentric stirring rod 300 and the reactant in a range that does not affect the rotational drive of the eccentric stirring rod 300 in the reaction material storage container (100). Any structure can be used, and FIG. 3 illustrates a structure in which a plate or the like of a predetermined size is fixed to the lower end of the eccentric stirring rod 300.

In order to accommodate the reactants of the plurality of components in the correct proportion before the experiment, the eccentric stir bar 300 is advantageously detached from the reactants containing container 100 in the storing process, and thus, stirring It is preferable to take the structure further provided with the stirring rod vertical drive means 500 for reciprocating the rod rotating means 400 and the eccentric stirring rod 300 in the vertical direction.

When storing the reactant in the undiluted state in the reactant container 100 and rotating the reactant container 100, the reactant stored by the centrifugal force passes through the upper opening of the reactant container 100. Bar to be scattered, in order to prevent this, it is preferable to take a structure that is further provided with a scattering prevention cover 600 on the upper side of the reaction material container 100.

An anti-scattering cover 600 has an opening formed at a lower portion thereof, and a storage container containing space for accommodating the reactant storage container 100 therein, and a stirring rod having the eccentric stirring rod 300 penetrated thereon. The through hole 610 is formed, and is mounted on the stirring rod vertical drive means 500 to take a configuration of reciprocating up and down with the eccentric stirring rod 300.

The stirring rod vertical drive means 500 described above drives the stirring rod rotation means 400 and the scattering prevention cover 600 in a vertical direction with respect to the reaction material storage container 100. At the time of downward driving, the scattering prevention cover 600 covers and protects the reactant container 100 while the eccentric stir bar 300 is located at the bottom of the reactant container 100 to stir efficiently the reactant. In this case, when the stirring rod vertical drive means 500 is driven upward, the cover 600 for preventing scattering and the eccentric stirring rod 300 are separated from the reactant storage container 100, so that before the experiment, Storing can be made easy, and after an experiment, it is easy to remove the polyurethane foam after reaction.

The stirring rod vertical drive means 500 may be any structure as long as the structure has the same function as described above, and in this embodiment, the rotary shaft O1 of the reactant container 100 and the eccentric stirring rod 300 are used. A support shaft 510 installed in parallel with the rotation axis O2 of the support shaft 510; Stirring rod rotating means fixing portion 521 is formed so that the stirring rod rotating means 400 is fixed to one side end, shatterproof cover fixing portion 522 extending downward from the stirring rod rotating means fixing portion 521 And a guide hole 520 having a pneumatic cylinder connecting portion 523 formed at the other end, and a support shaft through hole 524 formed so that the support shaft 510 penetrates the core portion; A pneumatic cylinder 530 connected to the pneumatic cylinder connection 522; The configuration to include is presented.

Reactant container 100 may take a structure fixed to the experimental device, it may take a structure detachable to the experimental device, it is preferable to take the latter structure to precisely improve the reaction material to be stored in the container. Do.

Therefore, as shown in Figures 4 and 5, the storage container rotating means 200 includes a motor 210 having a vertical axis of rotation (211) in the upper portion; The rotary support plate 220 is installed on the upper portion of the rotating shaft 211 and provided with an accommodating container mounting portion 221 and an accommodating container detachment preventing means 700 mounted thereon with the reactant accommodating container 100 at an upper core portion thereof. ; It is preferable to take a configuration that includes, when taking such a configuration, the reaction material storage container 100 is mounted to the storage container mounting portion 221 is fixed by the storage container departure preventing means 700, performing the experiment You can do it.

Here, the storage container departure preventing means 700 may take any structure as long as the reactant storage container 100 is not detached even during the rotation of the rotary support plate 220, and the present embodiment may include the reactive material storage container. A contact portion 711 having an inner surface in contact with the outer surface of the 100, a support portion 713 extending from the lower end of the contact portion 711 to the outside, and having a clamp mounting bolt through-hole 712 formed in the core portion thereof; A plurality of clamps 710 having storage container guides 714 extending to have a predetermined inclination outward from an upper end of 711; A clamp mounting hole 720 spaced apart from the center of the rotation receiving plate 220 to the outside and formed in plural with radial symmetry; A plurality of clamp mounting bolts 730 that are detachably mounted to the clamp mounting holes 720 through the clamp mounting bolt through holes 712; The configuration to include is presented.

That is, the clamp mounting hole 720 is formed at a predetermined position of the rotation support plate 220, and the clamp 710 having a structure capable of supporting the reactant container 100 is clamped by the clamp mounting bolt 730. Since the structure is mounted to the mounting hole 720, by adjusting the material and the inclination of the clamp 710, it is possible to stably mount the reactant storage container 100 to the rotating support plate 220.

In addition, the amount of the reactant may vary according to the contents of the experiment, and for this purpose, it is advantageous to take a structure in which the reactant container 100 of various sizes may be mounted. As shown in FIG. 4, the clamp is mounted. Ball 720 preferably takes a structure in which a plurality is formed so as to have a predetermined interval toward the outside from the center of the rotary support plate 220.

Accordingly, the clamp 710 is mounted in the clamp mounting hole 720 having an inner diameter suitable for the size of the reactant storage container 100 to be used among the clamp mounting holes 720 formed by radial symmetry, and the clamp 710. By supporting the reactant container 100 by the experiment it is possible to experiment with various amounts of the reactant.

In addition, for more efficient agitation, the eccentric stir bar 300 is advantageously located as close to the inner circumferential surface of the reactant container 100 as possible. In the case of mounting the larger reactant container 100 as described above If there is no variation in the position of the eccentric stir bar 300, a relatively eccentric stir bar 300 may be a result of moving away from the inner peripheral surface of the reaction material storage container (100).

Therefore, in response to the size variation of the reactant container 100 as described above, it is advantageous that the means for varying the position of the eccentric stirring rod 300 is provided with a bar, the rotation axis of the eccentric stirring rod 300 Stirring bar for horizontally moving the eccentric stirring bar 300 and the stirring rod vertical drive means 500 so that (O2) is close to or spaced apart in parallel with the rotation axis (O1) of the reaction material storage container 100 It is preferable to take the structure further provided with the eccentric moving means (800).

Here, the stirring rod eccentric movement means 800 is the stirring rod rotation means fixing part 521 and the scattering prevention cover fixing part 522 is close to or spaced apart from the support shaft 510 by a bolt and a plurality of bolt hole structures, etc. It can be easily implemented by taking the configuration to make.

In addition, the reaction time required for stirring the polyurethane foam reactant is also one of the main factors for determining the quality of the reactant, in the present invention by the control unit (not shown) the storage container rotating means 200 and Stirring rod rotating means 400 is configured to start the rotation at the same time and stop the rotation at the same time, it is possible to accurately control the reaction time.

In addition, in order to achieve complete automation of the experiment process, the control unit not only rotates the storage vessel rotating means 200 and the stirring rod rotating means 400, but also moves up and down the stirring rod vertically driving means 500 together. It is desirable to control.

Hereinafter, the operation of the present invention according to an embodiment of the controller (not shown) will be described.

As shown in FIGS. 1 and 2, in the state where the eccentric stirring rod 300 and the scattering prevention cover 600 are separated upward from the rotation support plate 220, the reactant stock solution is added to the reactant storage container 100. Is stored at a predetermined ratio and the storage container 100 is mounted in the storage container mounting portion 221.

Subsequently, by the user's operation command by a switch or the like, the control unit drives the stirring rod up and down driving means 500 to stop the eccentric stirring rod 300 and the scattering prevention cover 600 at a predetermined position, Instructs the rotation of the storage container rotating means 200 and the stirring rod rotating means 400.

For a more accurate experiment, it is preferable to control the storage container rotating means 200 to start the stirring by the eccentric stirring bar 300 at the same time as reaching the target rotational speed, the control unit (not shown) Beginning the rotation of the rotating means 200 and the stirring rod rotating means 400, and by driving the stirring rod up and down the drive means 500 to the rotation of the storage container rotating means 200 reaches a predetermined speed and At the same time, it is effective to control the eccentric stirring rod 300 and the shatterproof cover 600 to stop at a predetermined position.

In addition, after the stirring for the target time is finished, it is preferable to check the test result by removing the reaction material storage container 100 from the experimental apparatus as soon as possible, the control unit (not shown) is the storage container rotating means At the same time as the 200 and the stirring rod rotating means 400 starts to stop the rotation, the stirring rod up and down driving means 500 is driven upward so that the eccentric stirring rod 300 and the shatterproof cover 600 are predetermined. It is effective to control to stop at the position.

In this configuration, the user merely stores a predetermined reactant in the reactant accommodating container 100, mounts it on the accommodating container mounting part 221 of the rotary base plate 220, and the desired operation by only one operation of pressing the switch. The experimental results can be obtained accurately.

The present invention enables to accurately and completely agitate the reaction material of the polyurethane foam for a predetermined time, so that the stirring process of the actual polyurethane foam can be simulated very close to the actual, so that the reaction of the polyurethane foam Polyurethane foam test equipment is provided for better quality grasp in the laboratory.

Claims (13)

An reactant accommodating container 100 in which an opening is formed at an upper portion thereof, and an accommodating space of the polyurethane foam reactant is formed therein; Storage container rotating means (200) for rotating the reactant storage container with the axis of rotation (O1) in the vertical center line of the reaction material storage container; A lower end is mounted adjacent to the bottom surface of the reactant container 100 through an opening of the reactant container 100, and an eccentric rotation axis O2 with respect to the axis of rotation O1 of the reactant container 100. An eccentric stirring rod 300 mounted to have; A stirring rod rotating means 400 for rotating the eccentric stirring rod 300 around the vertical center line of the eccentric stirring rod 300 with a rotation axis O2; A control unit (not shown) for controlling rotation of the storage container rotating means 200 and the stirring rod rotating means 400; Polyurethane foam experiment apparatus comprising. The method of claim 1, Polyurethane foam, characterized in that the lower end of the eccentric stirring rod 300 is further provided with a stirring hole 310 for expanding the contact area with the polyurethane foam reactant contained in the reactant storage container 100 Experiment apparatus. The method of claim 2, Polyurethane foam experiment apparatus characterized in that the stirring rod rotating means 400 and the eccentric stirring rod 300 is further provided with a stirring rod vertical drive means (500) for reciprocating in the vertical direction. The method of claim 3, On the upper side of the reaction material container 100 An opening is formed at a lower portion thereof, and a storage vessel accommodation space is formed therein to accommodate the reaction substance storage container 100 therein, and a stirring rod through hole 610 through which the eccentric stirring rod 300 penetrates is formed therein. In addition, the polyurethane foam experimental apparatus, characterized in that the stirring rod is installed on the vertical drive means 500 is further provided with a scattering prevention cover 600 for reciprocating in the vertical direction together with the eccentric stirring rod 300. The method of claim 4, wherein The storage container rotating means 200 A motor 210 having a vertical rotation shaft 211 thereon; The rotary support plate 220 is installed on the upper portion of the rotating shaft 211 and provided with an accommodating container mounting portion 221 and an accommodating container detachment preventing means 700 mounted thereon with the reactant accommodating container 100 at an upper core portion thereof. ; Polyurethane foam experimental apparatus comprising a. The method of claim 5, The storage container departure preventing means 700 is A support portion 713 in which the inner surface is in contact with the outer surface of the reactant container 100, extending from the lower end of the contact portion 711 to the outside and the clamp mounting bolt through-hole 712 is formed in the core portion 713 A plurality of clamps (710) having an accommodating container guide portion (714) extended to have a predetermined inclination from the upper end of the contact portion (711) to the outside; A clamp mounting hole 720 spaced apart from the center of the rotation receiving plate 220 to the outside and formed in plural with radial symmetry; A plurality of clamp mounting bolts 730 that are detachably mounted to the clamp mounting holes 720 through the clamp mounting bolt through holes 712; Polyurethane foam experimental apparatus comprising a. The method of claim 6, The clamp mounting hole 720 is Polyurethane foam experiment apparatus characterized in that a plurality is formed to have a predetermined interval toward the outside from the center of the rotary support plate 220. The method of claim 7, wherein The eccentric stir bar 300 and the stirring rod 300 and the stirrer rod up and down driving means so that the rotation axis O2 of the eccentric stir bar 300 is close to or spaced apart in parallel with the rotation axis O1 of the reactant container 100 ( Polyurethane foam experiment apparatus further comprises a stirring rod eccentric moving means (800) for horizontally moving the 500. The method of claim 8, The stirring rod vertical drive means 500 A support shaft 510 installed in parallel with the rotation shaft O1 of the reactant accommodating container 100 and the rotation shaft O2 of the eccentric stirring rod 300; Stirring rod rotating means fixing portion 521 is formed so that the stirring rod rotating means 400 is fixed to one side end, shatterproof cover fixing portion 522 extending downward from the stirring rod rotating means fixing portion 521 And a guide hole 520 having a pneumatic cylinder connecting portion 523 formed at the other end, and a support shaft through hole 524 formed so that the support shaft 510 penetrates the core portion; A pneumatic cylinder 530 connected to the pneumatic cylinder connection 522; Polyurethane foam experimental apparatus comprising a. The method according to any one of the preceding claims, The control unit (not shown) is a polyurethane foam test apparatus, characterized in that for controlling the storage vessel rotating means 200 and the stirring rod rotating means 400 to start the rotation at the same time and stop the rotation at the same time. The method of claim 10, The control unit (not shown) is a polyurethane foam experimental apparatus, characterized in that for controlling the vertical drive of the stirring rod vertical drive means 500 together. The method of claim 11, The controller (not shown) The rotation of the storage vessel rotating means 200 and the stirring rod rotating means 400 is started, and the stirring rod vertically driven means 500 is driven downward to rotate the storage vessel rotating means 200 at a predetermined speed. At the same time, the eccentric stirring rod 300 and the scattering prevention cover 600 controls the polyurethane foam characterized in that the control to stop at a predetermined position. The method according to claim 11 or 12, wherein The controller (not shown) The storage vessel rotating means 200 and the stirring rod rotating means 400 starts to stop the rotation, and simultaneously drives the stirring rod up and down driving means 500 to the eccentric stirring rod 300 and the scattering prevention cover. Polyurethane foam experimental apparatus, characterized in that to control the 600 to stop at a predetermined position.