JP5090394B2 - MANUFACTURING METHOD AND MANUFACTURING APPARATUS FOR STRING REACTIVE RESIN FOAM MOLDED ARTICLE - Google Patents

Description

The present invention relates to a method and an apparatus for simultaneously producing a plurality of string-like reactive resin foam moldings using a sheet-like substrate.
More specifically, the foamed reactive resin foam molding material is introduced into a liquid separation coat hanger type die under specific conditions, separated, and discharged to a sheet-like substrate having a plurality of grooves in the traveling direction. Thus, the present invention relates to a method of manufacturing a plurality of strings of reactive resin foamed molded articles by reaction curing and a manufacturing apparatus therefor.

The inventors of the present invention previously developed and filed a technique for manufacturing a string-like resin molded body continuously in a plurality of rows as shown in Japanese Patent Application Nos. 2000-126648 and 2000-396263.
These main technologies are to form a plurality of rows of grooves in the direction of travel through the radial forming guide along a single sheet-like base material that runs along a plurality of rows of radial forming guides that converge in the direction of travel. A plurality of reactive resin molded body raw materials are discharged and filled into the groove to produce a plurality of strings of reactive resin foam molded bodies at a time.

  The technology for producing the above-mentioned reactive resin raw material continuously in a plurality of rows simultaneously is that the manifold opening angle θ at the raw material introduction port is set in the range of 115 ° to less than 170 °, and the die internal volume excluding the manifold is The ratio of the manifold volume is set in the range of 1: 0.1 to 1:10, and the liquid divider is installed substantially parallel to the line connecting the raw material inlet and the die raw material outlet to the die lip at the shortest distance. This is a technology that uses a liquid-coated hanger die to simultaneously discharge and form each of the multiple rows of grooves formed on the sheet-like substrate. However, it turns out that there are some problems.

In order to explain this problem, a conventional method for producing a string-like reactive resin molded body will be described with reference to the drawings to clarify the problem.
FIG. 10 is a schematic top view of a production line for a string-like reactive resin foam molding.
11 is a side view of FIG. 10, FIG. 12 is a cross-sectional view of P1-P1 ′ of FIG. 10, FIG. 13 is a cross-sectional view of P2-P2 ′ of FIG. 15 is a cross-sectional view taken along the line P4-P4 'of FIG.
In FIG. 10, 21, 22, 23, 24, 25, 26 and 27 are radial forming guides, and 20, 30, 40, 50, 60, 70 and 80 are parallel guide rails.
The sheet-like base material 19 having releasability is unwound from the feeding roll 15 and is converged toward the convergence point 13 of the radial molding guide on the upper surface of the radial molding guides 21, 22, 23, 24, 25, 26, 27. Proceed along.
The sheet-like base material 19 is pressed downward by the primary pressing jigs 41, 42, 43, 44, 45, 46 with the radial molding guide as a fulcrum, and further the secondary pressing jigs 51, 52, 53, 54, 55, The sheet-like base material grooves 61, 62, 63, 64, 65, 66 are formed by being pressed further downward by 56, and the reactive resin raw material is discharged and filled into the raw material injection point 17 before the upper surface of this groove is closed. The The upper part of the groove is then closed and then travels along the parallel guide rails 20, 30, 40, 50, 60, 70, 80.

The reactive resin raw material 81 is put into the plurality of sheet-like base material grooves 61, 62, 63, 64, 65, 66 formed as shown in FIG. 13, and the reactive resin raw material 81 is shown in FIG. Reacts to form a reactive resin foam molded body 16. At this time, the product becomes circular due to the self-generated gas pressure. In the case where the reactive resin foamed molded material charged at this time is excessive, gaps 71, 72 between the parallel guides 20, 30, 40, 50, 60, 70, 80 as shown in FIGS. Since the raw material overflows from between the two sheet-like base materials at positions 73, 74, 75, and 76 and applies foaming pressure to the parallel guide rails, a large gap is formed between the sheet-like base materials and the parallel guide rails. There may be a problem that the production line stops due to pressure.
15 is a cross-sectional view taken along the line P4-P4 ′ of FIG. 10, and the sheet-like base material 19 is spread by the take-up roll 18, so that the string-like reactive resin foam 16 is automatically demolded and the sheet-like base material 19 is removed. Carried on board.

In other words, this string-like reactive resin foamed molded article has a great advantage that a plurality of rows can be molded at the same time. On the other hand, particularly when the plurality of rows extend over 8 rows, the production line is frequently stopped. It is difficult to form all the string-like reactive resin foam moldings in a row in an optimal state.
This is because it is difficult to make all the sizes of the grooves made from the sheet-like base material the same size, and it is also difficult to make the weight of the liquid separation material to be injected the same amount. Furthermore, since the size of the groove made from the sheet-like substrate and the amount of the injected raw material are subject to changes over time of the operation, it becomes more difficult to set the same manufacturing conditions.
In addition, in this manufacturing method, when the raw material is injected into the groove of the sheet-like base material, the injected raw material is neither bubbled nor reacted nor rate-determined. Increases and creates a vertical difference. This is because the product size of the string-like reactive resin foam molding is small, so the filling amount is small, and therefore the heat generation amount due to the reaction is small and the foaming speed is slow, and the inner surface material of the sheet-like substrate mold forming the filling container It is considered that the difference in density increases due to the increase in the rising resistance of the foaming liquid and the fact that the endothermic amount of the sheet-like substrate is large relative to the filling amount. In particular, when the product is a product such as a roll, unevenness occurs in the rotation of the roll, which is fatal.

A first object of the present invention is to provide a separation-reactive resin foaming raw material production apparatus for producing a reactive resin foaming raw material and stably separating and discharging the foamed raw material.
The second object of the present invention is to produce a plurality of string-like reactive resin foamed moldings by filling a plurality of separated liquid-reactive resin foaming raw materials into a sheet-like substrate having a plurality of grooves. Even if there is a difference in the size of the groove formed by the sheet-shaped substrate and the weight of the liquid-reactive resin foaming raw material to be filled, and the raw material is excessively filled with respect to the size of the groove, a large foaming pressure is generated. It is an object of the present invention to provide a manufacturing method in which the parallel guide rail is not braked by foaming pressure and the manufacturing line does not stop.
The third object of the present invention is to provide a product having no density difference between the lower part and the upper part of the manufactured product.

Claim 1 introduces pump means for metering and conveying raw materials necessary for producing a string-like reactive resin foam molded article, and raw materials and inert gas conveyed from these pump means to a mechanical floss stirrer. Separating reactive resin bubbles having means for mixing and forming bubbles and reactive resin bubble forming raw material introduced into a separation coat hanger type die under specific conditions and divided into a plurality of parts and discharged This coated hanger type die has a manifold opening angle at the raw material introduction port in the range of 120 to 150 degrees, and the ratio of the die internal volume excluding the manifold to the manifold volume is It is in the range of 1: 0.1 to 1: 0.7, and the manifold groove width and cross-sectional area become smaller than the groove width and cross-sectional area at the center as it goes to the end, and the raw material for the die lip Inlet and a line separation reactive resin foam manufacturing apparatus formed by installing a parallel liquid partition member in connecting the die exit in the shortest distance.

In the present invention, a mechanical foaming stirrer called a mechanical froth stirrer is used instead of a normally used polyurethane foaming machine used to produce a polyurethane foam using a water foaming agent called chemical foaming. In order to make the inert gas finer and finely dispersed in the raw material to form bubbles, the reactive resin foam molding raw material is applied to the separation coat hanger type die in Japanese Patent Application Nos. 2000-126648 and 2000-396263 filed earlier. Unlike the case of introducing the reactive resin raw material, the reactive resin raw material is introduced into the separation coat hanger type die in the state of being already aerated.
The mechanical floss stirrer used here is a little larger than the conventional polyurethane foaming machine using a foaming agent, so the internal volume is slightly larger, and the raw material flowing into the separation coat hanger type die is aerated. The efficiency of washing the inner surface of the separation coat hanger type die with the inflowing reactive resin foaming raw material itself is deteriorated, and the gelation in the die is likely to proceed.

In addition, since the liquid separation coat hanger type die is provided with a liquid divider on the die lip of the die, it becomes a flow resistance, and the periphery of the jig is more easily gelled.
Therefore, even if the reactive resin foaming raw material with reduced detergency has been studied intensively to prevent gelation in the die and enable long-time operation, the manifold opening angle is narrowed to a range of 120 to 150 degrees. The ratio of the die internal volume excluding the manifold to the manifold volume is narrowed to a range of 1: 0.1 to 0.7, the residence time is shortened, and the liquid flow rate over the entire die width is made constant. It has been found that the flow at both ends in the width direction can be improved, the difference between the residence time at the end and the groove residence time at the center can be reduced, and the gelation around the liquid partition can be prevented.
In other words, by using a separation coat hanger type die under specific conditions, the inside of the die can be washed in a shorter time before the reaction is rate-determined, and even in the case of a bubbled raw material, gelation in the die can be prevented. It has been found that the present invention has been completed.

The opening angle of the manifold of the separation coat hanger type die indicates θ in FIGS. 5, 8, and 9, and indicates the opening angle of the left and right manifold tangent lines at the raw material inlet position.
The feature of the present invention is that a mechanical floss stirrer and a liquid separation coat hanger type die (hereinafter referred to as a liquid separation mechanical floss coat hanger type die) with specific conditions are used as a unit to gel the inside of the liquid separation coat hanger type die. It is to produce a liquid-reactive resin foaming raw material without making it.

  As the raw material metering pump used in the present invention, any pump can be used as long as it is a pump capable of quantitatively transporting a liquid. For example, a gear pump, a plunger pump, etc. can be used, preferably 0.3 Mpa. A pump that can be used at the above hydraulic pressure is preferred. Further, the pressure inside the stirrer for the mechanical floss stirrer can be used in the range of about 0.02 MPa to 1.5 MPa, and particularly preferably used in the range of 0.3 MPa to 1.1 MPa. This is preferable from the viewpoint of reducing the cell size and reducing the density of the reactive resin foam molding.

Here, the mechanical floss stirrer is different from the usual polyurethane foam stirrer for chemical foaming using CO ₂ gas generated by the reaction of water and polyisocyanate as a foaming agent. A mechanical stirrer that forcibly mixes the reactive resin foam raw material with a powerful agitating shear force to make the inert gas into bubbles before the reactive resin foam raw material determines the reaction rate. As a typical mixer, there is an Oaks mixer or a Hobart mixer.

An oak mixer type stirrer that is a mechanical floss stirrer will be described in detail with reference to FIGS. 1, 2, 3, and 4.
FIG. 1 is a schematic view of a liquid-reactive resin foaming raw material production apparatus comprising a liquid separation mechanical floss coat hanger type die in which a mechanical floss stirrer and a liquid separation coat hanger type die of the present invention are directly connected.
In FIG. 1, reference numeral 1 denotes a liquid separation mechanical floss coat hanger type die, which is a liquid separation reactive resin bubbling production apparatus. It is mainly composed of an Oaks mixer 3, a separation coat hanger die 4 and a motor 2 for rotating the Oaks mixer.
The reactive resin raw material sent from the metering pump is introduced into the Oaks mixer 3 through the inert gas inlet 34 through the raw material inlets 31, 32, 33, and is stirred and mixed by the motor 2. It flows into the liquid coat hanger die 4 and is separated and discharged from the die outlet 11.

FIG. 2 is a cross-sectional view of the mechanical floss stirrer 3. FIG. 3 is an enlarged view of the circled portion of FIG. 4 is a partial cross-sectional view taken along the line AA ′ of FIG.
Raw material components and inert gas are introduced from the reactive resin raw material inlets 31, 32, 33 and the inert gas inlet 34, and flowed into the upper gap between the upper stator 35 of the Oaks mixer 3 and the rotor 36 at the center, It reaches the side of the rotor 36 while being agitated by the blades of the rotor 36, then flows to the lower surface, gathers in the center through the lower gap between the lower stator 37 and the center rotor 36, and is discharged from the Oaks mixer outlet 38. Is done.

Here, as shown in FIG. 4, the central rotor 36 includes a rotor blade 361 that is a protrusion and a rotor cavity 362 in which no blade is present. The top stator is also composed of similar upper stator blades 351 and a hollow portion 352.
In FIG. 4, the raw material of the reactive resin foam molding and the inert gas flow from the central portion to the side portion, but the rotor is subjected to shear by the rotation of the rotor 36 by the rotor blades 361 of the upper stator 35 and the rotor 36. The raw material moves to the side part from the cavity part 362. The raw material that has reached the side moves to the lower stage, is similarly sheared by the rotation of the rotor, gathers at the center of the lower stage, and is discharged from the oak mixer outlet 38.
Since a normal polyurethane foaming machine has only a rotor composed of only rotating blades, the whole liquid can be stirred evenly in a macro manner, but the inert gas cannot be uniformly divided into finely divided parts. That is, a portion where uniform fine division and fine dispersion are insufficient occurs, and the bubble diameter is large, and large bubbles are mixed.

As the inert gas used in the present invention, there are air, N ₂ gas, argon gas, helium gas, CO ₂ gas and the like, and N ₂ gas is preferable in that the bubbles become fine.
Air is preferable in terms of cost, but it is good when the pressure inside the Oaks mixer is 0.3 MPa or less, but when it is 0.3 MPa or more, it is difficult to dehumidify the air, it is difficult to handle it as dry air, and it reacts with water. This is not particularly preferred in polyurethane foams using polyisocyanates that cause

The liquid separation coat hanger type die of specific conditions used in the present invention will be described in detail with reference to FIGS. 5, 6, 7, 8, and 9. FIG.
5 is a perspective view of a separation coat hanger type die used in the present invention, FIG. 6 is an enlarged view of the die lip 7 of FIG. 5, and FIG. 7 is a sectional view of the separation coat hanger type die of FIG.
FIG. 8 is a perspective view of another separation coat hanger type die used in the present invention, and FIG. 9 is a perspective view of another separation coat hanger type die used in the present invention.

The reactive resin foaming raw material discharged from the mechanical floss stirrer is introduced from the die raw material introduction port 6, expanded by the manifold 5, thinned through the die land 8, and at the same speed and in the same direction toward the die lip outlet. In the direction toward the shortest line connecting the raw material inlet and the die outlet, the liquid is separated by the liquid divider. Therefore, since the die land and the die lip travel at a constant speed, basically, if the liquid dividers are installed at equal intervals, all the liquid separations have substantially the same discharge amount and the same residence time.
The liquid divider is basically installed on the die lip of the separation coat hanger type die of the present invention, but may partially reach the die land.

  The liquid separation coat hanger type die 4 of the present invention shown in FIG. 5 ensures a stable discharge amount for a long time by finely adjusting the gap of the die outlet 11 in each die width direction by the curvature of the die lip 7. Since the liquid divider 9 is installed in the die lip 7, there is a limit in adjusting the discharge amount of each quantile by freely turning the flow rate adjusting bolt 10 installed in the die lip. When the flow rate at both ends in the die width direction decreases during long-time operation, the flow rate adjusting bolt 10a or 10f is rotated to widen the die lip gap t (shown in FIG. 7) at the die exit 11 at the end portion. Can be increased and the operation can be continued for a longer time.

FIG. 8 shows another separation coat hanger type die 4 'according to the present invention. The flow rate adjusting plate 14 is bent by freely rotating the adjusting bolt 10 of the flow rate adjusting plate 14 instead of bending the die lip 7'. The flow rate of each part can be freely adjusted by narrowing or widening the gap t (not shown, see FIG. 7) at the flow rate adjusting plate position.
Further, the bolts 10a and 10f can be rotated to increase the flow rate at both ends in response to the decrease in flow rate due to gelation of the die end in the die width direction for a long time, and the operation can be performed for a long time.

FIG. 9 shows another divided liquid separation coat hanger type die 4 ″ of the present invention. The divided flow rate adjusting plate 14 ′ is divided into 6 blocks of divided flow rate adjusting plates 141, 142, 143, 144, 145, and 146, respectively. In addition, by turning the flow rate adjusting bolt 10 of each block, it is possible to freely move back and forth regardless of the adjacent divided flow rate adjusting plate block, and the flow rate of each block can be freely adjusted largely or finely. It is possible.
The liquid divider must be installed on the die lip 7 ″ parallel to the line connecting the raw material inlet 6 and the die outlet 11 with the shortest distance. By this, the staying part of the reactive resin foaming raw material can be eliminated, and the resin gelation can be prevented.

In claim 2, the reactive resin foamed molding material and the inert gas in carrying out the present invention are bubbled with a mechanical floss stirrer, and an oak mixer type stirrer is particularly preferred. is there.
The stirrer of the Oaks mixer type is partly because the stirrer blades and the rotor blades surely accumulate the number of stirrer stages of the reactive resin foam molded body raw material and the inert gas to the first stirrer blade and the next stirrer blade. It is superior to the Hobart mixer because it can produce a string-like reactive resin foamed molded article of uniform fine bubbles that does not cause bubble division and insufficient bubble dispersion and does not have partially coarse bubbles or pinholes.

The mechanical floss stirrer will be described more specifically with reference to FIGS. 2, 3, and 4. The stirrer of the Oaks mixer type is composed of a fixed stator blade and a rotor blade, and the raw material is stirred by the rotation of the rotor blade.
In the upper stage of the rotor 36 in FIG. 3, the reactive resin material that has entered the center of the rotor passes through the upper stator blade 351-3 and proceeds to the upper stator blade 351-4. And the reactive tree raw material which reached | attained the stator edge part moves to the lower stage, proceeds to the lower stator blade 371-3 via the lower stator blade 371-4. That is, the traveling direction of the reactive resin raw material is the arrow Y-1 direction in the upper stage and the arrow Y-2 direction in the lower stage.
In the cross-sectional view of FIG. 4, the progress direction of the reactive resin foaming raw material is the direction of arrows Y-3 and Y-4. In this stirring mode, the raw material never returns in the reverse direction, and as can be seen from the figure, the reactive resin foam molded body raw material is surely advanced to the next blade while being stirred by each blade, and the number of stirring blade stages is accumulated. It is the type of stirring that goes.

A third aspect of the present invention is that the flow rate adjusting plate is provided on the separation coat hanger type die, and the flow rate adjusting plate is divided into a plurality of portions in the direction perpendicular to the die width. By dividing, it is possible to freely change the height of the flow rate adjusting plate at each position and adjust the flow rate of the reactive defoaming raw material. By using this divided flow rate adjusting plate, the flow rate at each position in the die width direction can be adjusted, and the flow rate due to the gelation of the reactive resin foaming raw material at the end in the die width direction during continuous operation for a long time. It is possible to adjust independently of the decrease, and the flow rate can be increased to enable continuous operation for a long time.
Normally, the liquid separation ratio at each liquid separation position is determined by the arrangement interval length of the liquid divider, but even if the arrangement interval length is set to an equal interval, the liquid separation ratio can be adjusted only by adjusting the divided flow rate adjustment plate up and down. The ratio can be changed to about 1: 1 to 1: 3, preferably about 1: 2.

The number of divisions of the divided flow rate adjusting plate is preferably an integer multiple of the number of liquid divisions by the liquid divider.
The integer multiple is 1 time, 2 times, 3 times, 4 times, 5 times or more, preferably 1 to 2 times. Increasing the factor by a factor of 3 or more does not significantly improve the effect.
By making the divided flow rate adjusting plate an integer multiple, the divided position flow rate at the target position can be increased or decreased, and the influence on other adjacent divided positions can be minimized.

  According to the fourth aspect of the present invention, raw materials necessary for producing a string-like reactive resin foam molded article are metered and transported using a pump, and the main transported raw material and an inert gas are introduced into a stirrer to form mixed bubbles. The reactive resin bubbling raw material thus discharged has a manifold opening angle θ in the range of 120 ° to 150 °, and the ratio of the die volume to the manifold volume excluding the manifold is 1: 0.1. ˜1: 0.7, and the groove width and cross-sectional area at both ends of the manifold are smaller than the groove width and cross-sectional area at the center as it goes to the end. The divider is introduced into a separation coat hanger die that is installed in parallel to the line connecting the raw material introduction port and the die outlet at the shortest distance, and a plurality of reactive resin foaming raw materials discharged in the liquid separation direction. Running continuously with multiple grooves Discharged filling the grooves of over preparative-shaped substrate, a method for producing a string-like reactive resin foamed molded product of the present packing is characterized by reacting cure.

  Since the reactive resin foaming raw material flowing in the die is a foam and a liquid divider for separating liquid is used in the die, the inside of the die is more easily gelled. As a result of intensive studies to solve this problem, the opening angle of the manifold is limited to a range of 120 to 150 degrees, and the ratio of the volume in the die and the manifold volume excluding the manifold is 1: 0.1 to 1: 0. It has been found necessary to limit the range to .7.

  In addition, a plurality of reactive resin foamed raw materials that have been separated and discharged are discharged and filled into the grooves of a sheet-like base material that continuously runs and has a plurality of grooves in the traveling direction. Even if it is a strip-shaped sheet-like base material, it may be a sheet-like base material having a plurality of grooves.

The sheet-like substrate used in the present invention may be any sheet-like substrate as long as it can be applied, and may be a film or paper, a composite of film and paper, or a sheet. Further, the sheet-like substrate may be stationary or moved.
When producing a single string-like reactive resin foam molded article, a sheet-like base material having releasability may be selected, and when a sheet-like base material and a composite product are desired, the releasability is low. It is only necessary to select paper, woven fabric, nonwoven fabric, or a film having adhesiveness that has no adhesiveness.

Examples of the sheet-like substrate used in the present invention include kraft paper, polyethylene film, polypropylene film, polymethylpentene film, polyester film, polyamide film, polyimide film, Teflon (registered trademark) film, fiber, woven fabric, and non-woven fabric. It is not limited to these. When the sheet-like substrate is the above-described plastic film, the thickness is preferably in the range of 15 μ to 150 μ, and preferably in the range of 20 μ to 100 μ.
Moreover, as the composite sheet-like base material having releasability, a release paper obtained by baking a releasable resin such as a silicon resin, or a film or a film laminated paper obtained by baking a releasable silicon resin or the like, There are a resin or other film that is integrated with a releasable resin film such as methylene pentene resin, a paper that is treated with oil or surfactant, a glass fiber reinforced Teflon resin sheet, etc. Further, it may be appropriately selected depending on the properties of the sheet-like substrate.

In the case of the composite sheet of the sheet-like base material and the particular paper or paper and other materials, the basis weight to the object shape shape retention and stable is preferably from ^{70g / m 2 ~200g / m 2} . Further, the case where the sheet-like base material having releasability is repeatedly used as a belt after the beginning and end of the sheet-like base material is also included in the scope of the present invention as a sheet-like base material.
As the plastic film having releasability, a film obtained by baking a resin having releasability such as silicon resin on a polyethylene terephthalate resin film or a film in which a non-releasable film and a releasable film are integrated is preferable. The thickness is preferably in the range of 15 μm to 150 μm. More preferably, it is the range of 20 micrometers-100 micrometers.

  According to a fifth aspect of the present invention, an oak mixer type stirrer is preferable as the mechanical floss stirrer. The agitator of the Oaks mixer type stirs with a strong shear force by the rotor blades and the stator blades, whereas the Hobart mixer type stirrer applies a strong shear force by the rotor blades rotating in the opposite direction. However, a stirrer of the Oaks mixer type is preferable because there is no return in the reverse direction of the liquid during stirring.

  A flow rate adjusting plate is installed on the separation coat hanger type die of claim 4 and the flow rate adjustment plate is divided, and a string-like reactive resin foam molding using the split liquid separation coat hanger type die. Is to make the body. By using this split flow rate adjusting plate, the split flow rate at each split position can be easily increased or decreased and the flow rate can be easily reduced due to gelation of the resin at the end of the die exit width direction due to long-time operation. The product having the same shape can be manufactured stably for a long time.

According to a seventh aspect of the present invention, a continuous sheet-like substrate having a plurality of grooves in the traveling direction is a single sheet-like substrate, and the groove is filled with a reactive resin foam material.
The method for producing the sheet-like base material continuously rolls out the roll-like sheet-like base material and places the fed-out sheet-like base material into a plurality of radial forming guides that converge in the traveling direction. The sheet-like base material is almost always advanced on the radial forming guide and at the same time the distance between the radial forming guide and the radial forming guide is reduced, and the sheet-like base material is pressed with a pressing jig or the like through the radial forming guide. A plurality of rows of continuous grooves are formed on a single sheet-like base material by three-dimensional bending into a groove shape.

The formation of the groove will be specifically described.
FIG. 16 is a schematic view of only a radially shaped guide that converges in the direction of travel. Increasing the number of string-like reactive resin foam moldings gradually increases the opening angle β of the radial molding guide, but preferably β is 15 degrees or less. When the opening angle of the radial forming guide is 15 degrees or more, large wrinkles are formed on both side portions of the sheet-like base material on which the grooves are being formed, and a plurality of uniform grooves cannot be formed.
FIG. 17 is an image diagram showing an example of the structure of a sheet-like substrate made of a groove-shaped molded body used in the process of manufacturing a string-like reactive resin foam molded body.
In (a), the sheet-like base material 19 is simulated by the pressing jigs 41 to 46 with the radial forming guides 21 to 27 as fulcrums to form V-shaped grooves.
In (b), the sheet-like base material 19 is pressed by the pressing jigs 41 ′, 42 ′, 43 ′ using the radial forming guides 21 to 26 as fulcrums, and a state in which a square groove is formed is schematically shown. Is.

The manufacturing method of the string-like reactive resin foam molding of the present invention will be described with reference to FIGS. 10 and 18 to 21 while comparing with the conventional manufacturing method.
The conventional manufacturing apparatus and the manufacturing apparatus of the present invention are basically the same except for the mixing and discharging apparatus for reactive resin raw materials, and therefore the manufacturing line for the string-like reactive resin foamed molded product is the same equipment.
That is, the production line diagram of the conventional string-like reactive resin foam molded body is a plan view of the production line FIG. 10, a side view of FIG. 11, a P1-P1 ′ sectional view of FIG. 12, a P2-P2 ′ sectional view of FIG. This will be described with reference to the P3-P3 ′ sectional view of FIG. 14 and the P4-P4 ′ sectional view of FIG.
Further, the production line diagram of the string-like reactive resin foam molded body of the present invention is the production line plan view of FIG. 10, the side view of FIG. 18, the P1-P1 ′ sectional view of FIG. 19, the P2-P2 ′ sectional view of FIG. This will be described with reference to the P3-P3 ′ sectional view of FIG. 21 and the P4-P4 ′ sectional view of FIG.
In FIG. 10, the sheet-like base material 19 having releasability unwound from the feeding roll 15 is converged in the traveling direction (converging point 13). Radial forming guides 21, 22, 23, 24, 25, 26, 27 It always extends over the radial forming guide along the radial forming guide.
The radial forming guide width gradually decreases and the pressing jigs 41, 42, 43, 44, 45, 46 press the sheet-like substrate with the radial forming guides 21-27 as fulcrums, and further press jigs 51, 52, 53, 54. , 55, and 56, the groove is gradually deepened.
The radial forming guide may be a round bar, a square member, a belt, or a short member provided with a space. In short, it may be a linear radial forming guide. The pressing jig may be the one shown in FIG. 16 as an example, or a rotating roll or air pressure.

As shown in FIG. 10, before the upper surfaces of the grooves 61, 62, 63, 64, 65, 66 formed in this way are closed, the reactive resin bubbling raw material is discharged to the raw material injection point 17, and then the upper portion of the groove as it progresses. Is closed and proceeds according to parallel guide rails 20, 30, 40, 50, 60, 70, 80, and is reaction-cured (usually using a heating oven but omitted in this figure) to produce a string-like reactive resin foam molded body Is done.
18 is a side view of FIG. 10 when the string-like reactive resin foam molded article of the present invention is manufactured. As can be seen from comparison with FIG. 11, in the present invention, the raw material of the reactive resin foaming material is almost full from the beginning as shown in FIG. 20 when it is filled at the raw material injection point 17. On the other hand, the conventional manufacturing method is in an unfoamed state as shown in FIG.
Then, the sheet-like base material further advances, the upper part of the groove is closed, and the foamed raw material expands by heating, and the sheet-like base material groove, which is a groove made of the sheet-like base material, is shown in FIG. It becomes full.
In the present invention, since bubbles are formed in advance, even if the filling amount becomes excessive and overflows between the two sheet-like substrates at the position of the rail gap, the amount is within the range of thermal expansion due to heating. Therefore, it was possible to operate continuously for a long time without the pressure to stop the line. That is, the foaming pressure can be lowered by pre-bubbleting, and the production line does not stop.

The eighth aspect is that the sheet-like base material is a release film or release paper that runs continuously.
By using a release film or release paper, the reactively cured string-like reactive resin foam molded article can be easily peeled off.
As shown in FIG. 10, when a releasable film or release paper is used by re-expanding and winding the reactively cured string-like reactive resin foam molding 16 with the take-up roll shaft 18, the string-like shape is automatically formed. The reactive resin foam molding 16 is peeled off and conveyed in a peeled state on the sheet-like base material shown in FIG.

A ninth aspect of the present invention is that the string-shaped reactive resin foam molded body produced in the eighth aspect is a string-shaped reactive resin roll precursor. Here, the precursor refers to a state one step before becoming a roll, and has a shape as shown in FIG.
That is, when producing a substantially circular string-like reactive resin foam molded article using a releasable sheet-like substrate, the reactive resin foam material is discharged into a plurality of grooves formed on the sheet-like substrate. The roll precursor having the shape shown in FIG. 22 can be easily manufactured continuously by inserting the roll shaft 88 in which the bearing cap 87 shown in FIG. 23 is set immediately before or immediately after discharging. Since this precursor can be peeled off at the position of the bearing cap 87 made of silicon resin or the like, it can be easily made into a single bearing roll.

The tenth aspect of the present invention is that the polyurethane resin foam or the silicon resin foam is the most suitable production method for carrying out the string-like reactive resin foam molded article of the present invention.
Originally, the present invention can be applied to any reactive resin foam molding, and in addition to polyurethane resin foam and silicon resin foam, polyacrylic resin foam, epoxy resin foam, melamine resin foam, phenol resin foam Body, urea resin foam, etc., but polyurethane resin foam or silicon resin foam is most suitable depending on raw material viscosity, reaction rate, durability of the obtained product, physical strength and the like.
In the case of a silicon resin foam, as in the case of a liquid reactive polyurethane foam, an inert gas is added to a one-component or two-component liquid reactive silicon resin raw material and stirred with a mechanical froth stirrer. The present invention can be accomplished by introducing the aerated raw material into a separation coat hanger type die used in the present invention and discharging it.

In the present invention, in producing a plurality of strings of reactive resin foam moldings, the reactive resin foam raw material and the inert gas are mixed into bubbles using a mechanical froth stirrer, and the reactive foaming raw material is obtained. Is introduced into a liquid separation coat hanger type die under specific conditions and separated, and this liquid separation is introduced into a plurality of rows of grooves made of a sheet-like base material and cured by reaction to continuously form a string-like reactive resin foam molding. To manufacture.
Unlike conventional methods, the foamed reactive resin foaming raw material is introduced into a groove made of a sheet-like substrate and cured by reaction, so that no foaming pressure is applied to the parallel guide rails during molding, even with excessive foaming pressure under excessive raw material conditions. The production line can be operated continuously for a long time without stopping. Further, the obtained product is a product having almost no difference in density between the upper and lower positions.
In particular, the roll produced from the roll precursor produced in the present invention has a productivity of 10 times or more compared with a molding method in which a raw material is injected into a conventional mold and heated to react and demold. Cost reduction is expected in such fields.
In addition, it has high performance stability due to its non-uniform density and can be used in sealing fields such as air sealing materials, water sealing materials, and electromagnetic sealing materials.

An object of the present invention is to simultaneously produce a plurality of rows of fine-bubble string-like reactive resin foam molded bodies using a reactive resin foaming raw material production apparatus comprising a liquid separation mechanical floss coat hanger type die.
Further, a polyurethane resin foam or a silicone resin foam is particularly suitable as a string-like reactive resin foam molded body, but here, only the polyurethane resin foam will be described in detail.
As an optimum stirrer, there is an Oaks mixer type stirrer or a Hobart mixer type stirrer. However, since the Oaks mixer is excellent, the use of the Oaks mixer will be described.

The gap ΔH between the upper stator and the rotor shown in FIG. 3 is preferably 0.5 to 2.0 mm. When the thickness is 2.0 mm or more, an insufficiently agitated part is generated, and the foam does not have a uniform size and becomes a polyurethane resin foam molded article containing pinholes that are coarse bubbles. Moreover, although 0.5 mm or less may be sufficient, since especially good effect will not be produced even if it becomes 0.5 mm or less, it is not necessary to make it below that. Moreover, there is a large risk of contact between the rotor and the stator, which is not preferable. Further, the gap ΔW between the stator and the rotor is preferably 0.5 to 2.0 mm. When the thickness is 0.5 mm or less, heat generation is large, and when the thickness is 2.0 mm or more, it is difficult to form uniformly fine bubbles. Further, the pitch between the upper and lower stators and the rotor blade stages is preferably 6 to 9 mm. Further, the number of blade stages (4 stages in FIG. 2) of the stator and the rotor is preferably 7-10.
Since the oak mixer is subjected to shear by rotation for a long time and causes high heat generation, a cooling jacket is preferably attached to the upper stator and the lower stator, although not shown in FIG.
Further, the rotational speed of the rotor is preferably about 500 to 4000 revolutions / minute, and if it exceeds 4000 times, the heat generation is large and the raw material becomes high temperature, which is not preferable. Moreover, the raw material temperature after stirring is preferably about 15 to 35 ° C. When the temperature is higher than this, the reaction proceeds rapidly, and gelation may occur in the coat hanger type die.

The separation coat hanger type die of the present invention is basically divided into a plurality of reactive resin foaming raw materials and discharged before the reaction occurs in the entire die width.
Therefore, the total volume of the die is important. Therefore, the land clearance of the present coat hanger type die becomes important. In the case of producing a thin string-like resin foam molded article, the land gap is preferably 0.2 to 1.0 mm, and in the case of a large large string-like resin foam molded article, the die land gap is preferably about 1.0 to 2.0 mm.

A method for producing a plurality of string-like reactive resin foam molded articles of the present invention will be briefly described with reference to the drawings.
FIG. 10 is a schematic view of a production line for continuously producing multiple rows of string-like reactive resin foam molded articles. 18 is a side view of FIG. 10, FIG. 19 is a cross-sectional view at the P1-P1 ′ position in FIG. 10, 20 is a cross-sectional view at the P2-P2 ′ position in FIG. 10, and FIG. 21 is a P3-P3 ′ position in FIG. FIG. 15 is a sectional view taken along the line P4-P4 ′. A method for producing a plurality of string-like reactive resin foam molded bodies will be described with reference to these drawings.
The sheet-like substrate having releasability is preferably a polyester film baked with a silicone resin.
In FIG. 10, the releasable film 19 is unwound from the feed roll 15 and converges in the traveling direction (converging point 13) and proceeds on the upper surfaces of the radial forming guides 21, 22, 23, 24, 25, 26, 27. . In the progress, the pressing jigs 41, 42, 43, 44, 45, and 46 are pressed through the radial forming guide to form grooves. Next, the pressing jigs 51, 52, 53, 54, 55, and 56 are further pressed to form deeper grooves 61, 62, 63, 64, 65, and 66. The width of the sheet-like base material gradually becomes narrower as the depth of the groove becomes deeper.
Next, the aerated raw material is charged into the created grooves 61, 62, 63, 64, 65, 66 from a mechanical floss separation coat hanger type die.

In the present invention, as shown in FIGS. 18 and 20, when the sheet is inserted into the groove, the grooves 61 to 66 of the sheet-like base material under the radial forming guide are almost in the state of full groove, and thereafter heating or the like is performed. Is added to form a circular shape by thermal expansion. Since this thermal expansion pressure is small, it does not become a large pressure with respect to the gap between the parallel guide rails, so that the production line does not stop. Further, since the reactive resin foam material is almost full at the time of filling, there is almost no difference in density between the upper part and the lower part of the product.
FIG. 21 particularly shows the production of a circular product, but after filling the raw material of FIG. 20, before the raw material is cured by the reaction, a circular shape is formed by installing a molding guide so that the desired shape is formed from the surface of the release film. Square and irregular shaped products can also be manufactured.

The case where the reactive resin foam molding is a polyurethane resin foam molding will be described in detail.
Any material can be used as the raw material for the polyurethane foam molding as long as it is used for general polyurethane foams. For example, any polyol such as polyoxyalkylene polyol, polyester polyol, and polyolefin polyol can be used.
In the mechanical froth foam, the higher the raw material viscosity, the better the bubble stability. Therefore, it is preferably used as a polyol prepolymer having a terminal OH group obtained by reacting polyol and polyisocyanate in advance.
As the polyisocyanate, generally usable polyisocyanates such as tolylene diisocyanate, hexamethylene diisocyanate, polymethylene polyphenylene polyisocyanate, and carbodiimide-modified polymethylene polyphenylene polyisocyanate can be used.
Further, as described above, since the higher the raw material viscosity, the fine bubbles and the stability of the bubbles increase. Therefore, it is preferably used as a polyisocyanate prepolymer having a terminal NCO group obtained by reacting a polyol and a polyisocyanate in advance.

As the crosslinking agent or chain extender, 1.4 butanediol, ethylene glycol, diethylene glycol, low molecular weight polyols such as ethylene oxide adducts of glycerin and trimethylolpropane can be used, but are not limited thereto.
As the inert gas, N ₂ gas, air, CO ₂ gas, helium gas and the like can be used, but N ₂ gas is preferable in terms of fine bubbles.
The foam stabilizer is preferably a polydimethylsiloxane-polyoxyalkylene glycol copolymer, but a nonionic surfactant can be used alone or in combination with a polydimethylsiloxane-polyoxyalkylene glycol copolymer. is there.
Examples of the catalyst include tertiary amines typified by triethylenediamine used for general polyurethane resin foams, organometallic compounds such as stannous octoate, dibutyltin dilaurate, and inorganic bismuth.
Also, a retarding catalyst can be used, and the productivity can be further increased by using 2 to 3 times the amount of catalyst used at the time of normal mechanical froth foaming. The retarding catalyst can be used alone or in combination with a general-purpose urethane catalyst. Examples of the retarding catalyst include nickel acetylacetonate and nickel diacetylacetonate.
The present invention mainly aims to produce a reactive resin foam without delaying the reaction, but the reaction is delayed due to the type of reactive resin raw material, the increase in the number of bubbles, and the application of low density bubbles. However, it is possible and included in the scope of the present invention.

As the reactive polyurethane resin foam, not only a flexible soft polyurethane resin foam but also a semi-rigid polyurethane resin foam or a rigid polyurethane resin foam raw material can be used to carry out the present invention.
Further, the present invention can be carried out with an open-cell polyurethane resin foam or a closed-cell polyurethane resin foam.
In addition, aluminum hydroxide, calcium carbonate, clay, barium hydroxide, barium sulfate, etc. can be used as thickening inorganic fillers, and petroleum resin, asphalt, polybutene, oil etc. are used as organic fillers, which are generally used. Can be used.
Carbon nanotubes, ionic liquids, metal powders, carbon black, and the like can be used alone or in combination.

（７）操出ロール１５と放射状成形ガイドとの空間部：約３５０ｍｍ
（８）放射状成形ガイドと平行ガイドレールとの空間部：約５０ｍｍ
（９）放射状成形ガイドの開き角度β：約５．０５度
（１０）平行ガイドレール間隙：０．３０ｍｍEight rows of string-like reactive polyurethane resin foam molded bodies were manufactured according to the string-shaped reactive resin foam molded body manufacturing apparatus of FIG.
The use of the Oaks mixer, coat hanger type die, and production line used in the production will be described below.
(Production line specifications)
(1) Feeding roll width: 1100 mm
(2) Coat hanger type die outlet width: 200 mm
(3) Cure oven temperature: 130 ° C
(4) Release sheet base material PET film thickness: 25 μm
PET film width: 1000mm
PET film mold release agent: Silicon baking type PET film speed: 1 to 6 m / min (5) Radial molding guide: 10 mm wide, 25 m high square material, clearance 61.1 mm between each radial molding guide and radial molding guide at the start
(6) Radial forming guide A schematic top view of each radial forming guide is shown in FIG.
21, 22, 23, 24, 25, 26, 27, 28, 29 are radial forming guides 20, 30, 40, 50, 60, 70, 80, 90, 100 are parallel guide rails The length of each radial forming guide is It is as follows.

(7) Space between the feed roll 15 and the radial forming guide: about 350 mm
(8) Space between the radially formed guide and the parallel guide rail: about 50 mm
(9) Radial forming guide opening angle β: about 5.05 degrees (10) Parallel guide rail gap: 0.30 mm

(Oaks mixer specification)
[Fig. 1] [Fig. 2] [Fig. 3] [Fig. 4] As shown in FIG.
The equipment specifications are described below.
(1) Rotor blade height: 4mm
Number of blades: Upper 6 sheets (6 stages), Lower 7 sheets (7 stages)
Feather stage pitch: 6mm
(2) Upper stator blade height: 4mm
Number of blades: 6 (six steps)
Feather stage pitch: 6mm
(3) Lower stator blade height: 4mm
Number of feathers: 7 (7 steps)
Feather stage pitch: 6mm
(4) Vertical gap ΔH between upper stator blades and rotor upper blades: 0.6 mm
(5) Vertical clearance ΔH between the lower stator blade and the rotor upper blade: 0.6 mm
(6) Left and right clearance ΔW between upper and lower stator blades and rotor upper and lower blades: 0.5 mm
(7) Rotation speed 500-4000rpm
(8) Seal pressure resistance of Oaks mixer: 1.1 MPa
(9) Internal volume: 67ml

(Divided coat hanger type die: Fig. 9 type)
(1) Die discharge width: 200mm
(2) Die opening angle: 128 degrees (3) Ratio of die inner volume excluding manifold and manifold is about 1: 0.23
(4) Dieland gap (t) about 0.5mm
(5) Separation number: 8 (Liquid divider pitch 25 mm)
(6) Die internal volume: about 20.9ml
(Containing string-like polyurethane foam molding)

The production line was performed with an apparatus according to FIG. 10, but the number of production was 8 or 8 rows. A silicon release PET film having a width of 1000 mm is fed out at a speed of 1.05 m / min, and the film between the radial molding guide and the radial molding guide is pressed to create a single sheet-like substrate having eight rows of grooves. When the groove width becomes 12 mm, the polyurethane foam molded body raw material having the above-mentioned blending prescription is charged into the aforementioned Oaks mixer at a rate of 345 g / min and N ₂ gas is charged at a rate of 460 cc / min, The mixture was stirred at 2000 revolutions / minute, and charged into a divided liquid coat hanger type die according to FIG. The chamber pressure of the Oaks mixer at this time was 0.42 MPa. After discharging, the top film was closed and cured at 130 ° C.
When the end flow rate adjusting bolt of the divided flow rate adjusting plate was adjusted, it was possible to operate continuously for 120 minutes. Table 1 shows the physical properties of the obtained polyurethane foam.

  The blended prescription, production line specifications, Oaks mixer specifications, and split liquid coat hanger type die were manufactured under the same production conditions as in Example 1 to produce a string-like polyurethane roll precursor.

A silicon release agent baking PET film having a width of 1000 m is fed out at a speed of 1.03 m / min, and the silicon release agent baking PET film between the radial forming guide and the radial forming guide is pressed using a spindle to form eight rows of grooves. One sheet-like base material having the following was continuously formed.
The raw material of the polyurethane foam molded body having the above composition was charged into an Oaks mixer at a rate of 345 g / min, N ₂ gas was charged at a rate of 460 cc / min, stirred at 2500 rpm, and then directly connected to an 8-minute liquid. The solution was put into a divided liquid coat hanger type die and dividedly discharged. The Oaks mixer chamber pressure at this time was 0.44 MPa.
This 8-divided polyurethane foamed raw material has a 13.5 mm diameter silicon resin bearing cap in the shape shown in FIG. 23 at the position where the groove width of the one sheet-like base material is 19 mm, 5 mm in diameter, A shaft with a length of 200 mm was immediately put into a foamed polyurethane foaming raw material to proceed, the top surface of the film was closed and cured at 130 ° C.
The operation was continued for 90 minutes with the flow rate adjusting bolts of the end divided flow rate adjusting plate. Table 1 shows the physical properties of the obtained string-like polyurethane roll precursor.

Comparative Example 1

The production line specifications and split-split coat hanger die are the same as in Example 1, the Oaks mixer is changed to a normal pin type agitating foaming machine, and the compounding formula is also changed from a mechanical floss foaming machine to a normal chemical foaming machine. An eight-ply string-like polyurethane foam molded article was produced. The formulation is as follows.
(Stringed polyurethane foam molded product formulation)

A silicon release agent-baked PET film having a width of 1000 m was fed out at a speed of 1.10 m / min, and a single sheet-like substrate having 8 rows of grooves was produced in the same manner as in Example 1, resulting in a groove width of 12 mm. At the time, the raw material of the blended polyurethane foam molded body composition consisting of the above-mentioned compound was introduced into the pin type stirrer at a rate of 345 g / min. At this time, N ₂ gas was introduced at a rate of 27 cc / min as a bubble nucleating agent. The mixture was stirred at 4500 revolutions / minute, and charged into a divided liquid coat hanger type die according to FIG. The chamber pressure of the foaming machine was 0.17 MPa. After the discharge injection, the sheet-like substrate was further run as shown in FIG. 10 to close the upper part of the groove of the sheet-like substrate, foamed at 75 ° C., and then cured at 130 ° C.
As in Example 1, the flow rate adjustment bolt of the divided flow rate adjustment plate at the end was adjusted to suppress the decrease in the liquid separation amount at the end of the die, but the flow rate at the center position 3 and 4 at the 8 picks increased sequentially. The production line stopped 26 minutes after the start. The obtained physical properties are shown in Table-1.

Comparative Example 2

A silicon release agent baking PET film having a width of 1000 m was fed out at a speed of 0.89 m / min. When a 200 mm long shaft with a silicone resin bearing cap reaches a groove width of 19 mm in the sheet-like base material, the raw material is introduced into a pin type agitator, and then a 200 mm long shaft with a silicone resin bearing cap is immediately injected into the raw material. It was manufactured under the same conditions as in Example 1 except that it was put in.
As in Comparative Example 1, the split flow rate adjusting plate at the end of the die was adjusted to prevent a decrease in the liquid separation amount. The production line stopped after 19 minutes. Table 1 shows the physical properties of the obtained string-like polyurethane roll precursor.

As can be seen from Table 1, it was difficult for ordinary chemical foaming to operate for a long time regardless of whether or not the roll shaft was inserted.
When mechanical floss and chemical foaming are compared, it can be seen that the cord-like polyurethane foam is superior in the mechanical floss method with a smaller vertical density difference.
Even when the roll shaft is inserted, the mechanical floss method has a smaller density difference than chemical foaming, and the increase in the foam density due to the roll shaft is small. In addition, when a shaft is inserted by chemical foaming, a pinhole is generated in the upper part. This is thought to be caused by entrainment of bubbles on the shaft surface when the filled reactive resin material is sequentially foamed.

Overview of the liquid separation mechanical floss coat hanger type die of the present invention FIG. 1 is a cross-sectional view of the mechanical floss stirring device portion of FIG. Enlarged view of the circle in FIG. AA 'sectional view of FIG. The perspective view of the liquid separation coat hanger type die used for the present invention Enlarged view of the die lip 7 of FIG. Sectional view of the separation coat hanger type die of FIG. Perspective view of another separation coat hanger type die used in the present invention Perspective view of another separation coat hanger type die used in the present invention Schematic top view of string-like reactive resin foam molding production line 10 is a side view of the production line of FIG. 10 when manufacturing a conventional string-like reactive resin foam molded article. 10 is a cross-sectional view of the production line P1-P1 ′ of FIG. 10 is a cross-sectional view of the production line P2-P2 'of FIG. 10 is a cross-sectional view of the production line P3-P3 ′ of FIG. P4-P4 ′ cross-sectional view of FIG. 10 when producing a string-like reactive resin foam molded body Schematic top view of radial forming guide Image diagram showing the relationship between radial forming guide and pressing jig The side view of FIG. 10 at the time of manufacture of the string-like reactive resin foam molding of the present invention 10 is a cross-sectional view taken along line P1-P1 ′ of FIG. P2-P2 'cross-sectional view of FIG. 10 when the string-like reactive resin foam molded article of the present invention is manufactured P3-P3 ′ cross-sectional view of FIG. 10 when the string-like reactive resin foam molded article of the present invention is manufactured. Cross-sectional view of string-shaped reactive resin roll precursor Roll shaft perspective view with bearing cap Top view of radial forming guide used in Example 1, Example 2 and Comparative Example 1

1: Separation of reactive resin foam comprising a liquid separation mechanical floss coat hanger die 2: Motor 3: Oaks mixer 31: Reactive resin raw material inlet 32: Reactive resin raw material inlet 33: Reactive resin raw material Inlet 34: Inert gas inlet 35: Upper stator 351: Upper stator blade 351-3: Upper stator blade 351-4: Upper stator blade 352: Upper stator space 36: Rotor 361: Rotor blade 362: Rotor space 37: Lower stator 371-3: Lower stator blade 371-4: Lower stator blade 38: Oaks mixer outlet 39: Oaks mixer rotating shaft 4: Liquid separation coat hanger type die 4a: Component plate 4b of liquid separation coat hanger type die: Separation coat hanger-shaped die component plate 4 ': Another separation coat hanger Shape die 4'a: Component plate 4'b of another separation coat hanger type die: Component plate 4 "of another separation coat hanger type die: Another separation coat hanger type die 4" a: Separate Separation coat hanger-type die component plate 4 ″ b: Separate coat hanger die component plate 5: Manifold 6: Raw material introduction port 7: Die lip 7 ′: Separation coat hanger die die 7 ′ ': Die lip of another liquid separation coat hanger type die 8: Die land 9: Liquid dividers 91, 92, 93, 94, 95: Each liquid divider 10: Flow rate adjusting bolts 10a, 10b, 10c, 10d, 10e, 10f : Each flow adjusting bolt 11: die outlet 12: pressure adjusting groove 13: convergence point 14 of the radial forming guide 14: flow adjusting plate 14 ': divided flow adjusting plates 141, 142, 143, 144, 145, 146: divided flow adjusting Plate 15: Feeding roll 16: String-like reactive resin foam molding 16 ': String-like reactive resin roll precursor 17 of the present invention 17: Raw material injection point 18: Winding roll 19: Sheet-like substrate having releasability 20, 30, 40, 50, 60, 70, 80: 6 parallel guide rails
20, 30, 40, 50, 60, 70, 80, 90, 100: another parallel guide rail (8 pieces)
21, 22, 23, 24, 25, 26, 27: Radial molding guide (six)
21, 22, 23, 24, 25, 26, 27, 28, 29: Another radial forming guide (8 pieces)
41, 42, 43, 44, 45, 46: primary pressing jigs 51, 52, 53, 54, 55, 56: secondary pressing jigs 61, 62, 63, 64, 65, 66: sheet-like base materials Grooves 71, 72, 73, 74, 75, 76: Parallel guide rail gap 81: Filling reactive resin material 87: Bearing cap 88: Roll shaft 90: Conventional stirrer coat hanger type die 200: Separating mechanical floss coat hanger type Die θ: Manifold opening angle ΔH: Vertical gap between upper stator blade and rotor upper blade ΔW: Left and right gap between upper stator blade and rotor upper blade t: Die lip gap

Claims (10)

Pump means for metering and conveying the raw materials necessary to produce the reactive resin foam molded article, and the raw materials and inert gas conveyed from these pump means are introduced into a mechanical froth stirrer to form mixed bubbles. A separation liquid reactive resin foam continuous production apparatus comprising: a means for mixing and forming a reactive resin foamed raw material into a liquid separation coat hanger type die under specific conditions; The opening angle of the manifold at the raw material inlet of the liquid separation coat hanger type die is in the range of 120 ° to 150 °, and the ratio of the die internal volume excluding the manifold and the manifold volume is 1: 0.1. ˜1: 0.7, and the manifold groove width and cross-sectional area are smaller than the groove width and cross-sectional area at the center as it goes to the end, and the raw material inlet and die are connected to the die lip. Mouth and shortest distance becomes installed parallel to the liquid partitioning device a line connecting with separation reactive resin foam raw material manufacturing apparatus. The liquid-reactive resin foaming raw material manufacturing apparatus according to claim 1, wherein the mechanical floss stirrer is an Oaks mixer type stirrer. The apparatus for producing a liquid-reactive resin foaming raw material according to claim 1, wherein a flow rate adjusting plate is installed on the separation coat hanger type die, and the flow rate adjusting plate is divided. The raw materials necessary for producing the string-like reactive resin foam molded article are metered and transported using a pump, and the transported raw materials and inert gas are introduced into a stirrer to form mixed bubbles and discharged. The reactive resin bubble forming raw material thus discharged has a manifold opening angle in the range of 120 ° to 150 °, and the ratio of the die volume to the manifold volume excluding the manifold is 1: 0.1 to 1: 0. .7, and the groove width and cross-sectional area at both ends of the manifold are smaller than the groove width and cross-sectional area at the center as it goes to the end. Introduce into a separation coat hanger type die that has a liquid divider parallel to the line connecting the outlet with the shortest distance, and discharge the separation liquid. A continuously traveling sea with a plurality of grooves Discharged filling the grooves of Jomotozai method for producing a string-like reactive resin foam molded body characterized by reacting cure the filler. The method for producing a string-like reactive resin foam molded article according to claim 4, wherein the stirrer is an Oaks mixer type stirrer. The manufacturing method of the string-like reactive resin foaming molding of Claim 4 by which the flow volume adjustment board is installed in the liquid separation coat hanger type | mold die, and also this flow volume adjustment board is divided | segmented. The string-like reaction according to any one of claims 4 to 6 , wherein the groove of the continuous sheet-like substrate having a plurality of grooves in the traveling direction is a sheet-like substrate produced by the following production method. For producing a porous resin foam molded article.
The sheet-like base material is continuously drawn out, and the sheet-like base material on the radial shaping guide is almost always placed on the radial shaping guide along a plurality of radial shaping guides that converge the drawn-out sheet-like base material in the traveling direction. At the same time, while pressing the sheet-shaped substrate through the radial molding guide while reducing the distance between the radial molding guide and three-dimensionally bending into a groove shape, Form multiple rows of continuous grooves in the material.
The method for producing a string-like reactive resin foam molded article according to claim 7, wherein the sheet-like base material is a release film or release paper that runs continuously. The method for producing a string-like reactive resin foam molded article according to any one of claims 4 to 8 , wherein the string-like reactive resin foam molded article is a string-like reactive resin roll precursor.
The string-like reactive resin foam molded article according to any one of claims 4 to 9 , wherein the string-like reactive resin foam molded article is a string-like polyurethane resin foam molded article or a string-like silicon resin foam molded article. Production method.

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