JP2003053760A - Device for continuously manufacturing plate-shape expanded material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure easy speeding-up of a plate-shape expanded material production. SOLUTION: A plurality of double conveyors 5 and 6 for press-molding which pressurize a continuous length laminate 2 from both sides under a treatment temperature atmosphere are arranged, in series, along a route for continuously conveying the laminate 2 formed of a lower face material and an upper face material, of a continuous length sheet shape, which sandwich an expandable resin material. In the device for continuously manufacturing a plate-shape expanded material, an intermediate retaining member 10 is arranged which has pressurizing planes 10a and 10b continuously retaining the upper face and the lower face of the laminate 2 while the laminate 2 passes through a gap S between the adjacent double conveyors 5 and 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously producing a plate-like foam material, and more particularly to an apparatus for continuously producing a plate-like foam material such as a sheet-like polyurethane foam used as a heat insulating building material.

[0002]

2. Description of the Related Art FIG. 7 shows the structure of a main part of a conventional continuous foaming material production apparatus 60. The continuous manufacturing apparatus 60 includes a long laminate 61 in which a foamable resin material P is sandwiched between a long sheet-shaped lower surface material 62 and a long sheet-shaped upper surface material 63.
During the continuous transportation, the temperature processing chamber 6
4 is pressed by a single double conveyor 65 under a processing temperature atmosphere, and while passing through the double conveyor 65, the resin material P is foamed and molded to continuously produce a plate-shaped foam material W. To do. The double conveyor 65 can be said to be the heart of the device, and greatly affects the thickness accuracy and surface accuracy of the plate-shaped foam material W that is a product, and occupies approximately half of the cost of the entire device in terms of cost. The production speed in the continuous production apparatus 60 is proportional to the transport speed (line speed) of the laminated body 61, and the faster the line speed, the faster the production speed. In FIG. 7, reference numeral 7 is a device for blowing out a foamable resin stock solution, for example, a mixing head or the like in the case of using foamed polyurethane that mixes and foams two solutions.

[0003]

However, in the case of the above conventional apparatus, it is not easy to increase the production speed. In other words, in order to increase the production speed, the laminated body 61
If the conveyance speed is increased, the time for which the laminated body 61 stays on the double conveyor 65 is too short, and the necessary curing time cannot be secured, so-called curing becomes insufficient, and the thickness accuracy and surface accuracy are significantly reduced. The length of the double conveyor 65 is determined according to the thickness of the foam material and the production speed that are assumed in advance at the design stage, and it is difficult to make the production speed faster than the speed assumed at the design stage.

On the other hand, if the double conveyor 65 is replaced with a longer one and the existing equipment is used for the other equipment, the production speed can be increased at almost the cost of the double conveyor. However, as mentioned above, the double conveyor, which is the main part of the equipment, occupies almost half of the price of the entire equipment, so if you try to use a longer double conveyor, the manufacturing cost will be significantly higher and the production cost will rise. Therefore, it is not easy to increase the production speed.

Therefore, in view of the above-mentioned problems of the prior art, it is an object of the present invention to provide an apparatus for continuously manufacturing a plate-shaped foam material which can easily increase the production speed of the plate-shaped foam material.

[0006]

The above objects can be achieved by the inventions described in the claims. That is, the characteristic configuration of the continuous production apparatus for a plate-shaped foam material according to the present invention (hereinafter, appropriately abbreviated as “continuous production apparatus”) is a length obtained by sandwiching a foamable resin material between a long sheet-shaped lower surface material and an upper surface material A scale-shaped laminated body, along a path for continuously conveying, and a plurality of pressure molding double conveyors for pressing the laminated body from both sides under a processing temperature atmosphere are arranged in series, An intermediate pressing member having a pressing plane that keeps pressing the upper surface and the lower surface of the stacked body is provided while the stacked body passes through the gap between the adjacent double conveyors.

According to this structure, a sandwich-shaped long laminated body in which the foamable resin material is sandwiched between the long sheet-shaped upper surface material and the long sheet-shaped lower surface material is provided in the conveyance path of this laminated body. While passing through a plurality of pressure molding double conveyors arranged in series along with it, foaming and molding of the resin material are performed as pressure is applied from both sides under a processing temperature atmosphere, The plate-shaped foam material is continuously manufactured.
And at the gap between adjacent double conveyors,
Instead of interrupting the pressurization by the double conveyor, the upper and lower surfaces of the laminate are continuously pressed by the pressing plane of the intermediate pressing member. In this case, if the laminated body is not pressed by the pressing plane of the intermediate pressing member, the pressure applied to the laminated body is temporarily released in the gap between the adjacent double conveyors and the laminated body swells due to the foaming of the resin material. After that, the laminated body that swelled due to repressurization on the next double conveyor is forced to be compressed, and cracks occur at the center of the plate-like foam material, and gas is accumulated on the back side of the top surface material etc. due to foam breaking. As a result, peeling of the top surface material occurs, resulting in a defective product. Also, if the surface that presses the upper surface and the lower surface of the laminated body is a curved surface,
The pressure applied to the laminate will be strong or weak depending on the degree of bending, and in places where the pressure is weak, foam breakage that induces peeling of the upper surface material as described above will occur, so the pressure of the laminate should be flat. is necessary.

As described above, in the case of this continuous manufacturing apparatus, in addition to the plurality of double conveyors being arranged in series, even if the gap between the adjacent double conveyors where the pressure by the double conveyors is interrupted, the intermediate pressing member is Since the pressed state of the laminated body is maintained by the pressing action of the pressing plane, the entire length of the double conveyor is the length obtained by adding the lengths of the plurality of double conveyors. Therefore, a new double conveyor is added to the existing double conveyor in series by adding an intermediate pressing member between the existing double conveyor by utilizing the existing continuous production facility for the plate-shaped foam material having one double conveyor. If a continuous manufacturing device is implemented, the total length of the double conveyor will be extended by the amount of the added double conveyor, so the production speed can be increased, and the additional equipment can be practically only the additional double conveyor and the intermediate pressing member. Therefore, the manufacturing cost does not rise so much, there is no difficulty in terms of cost,
It is easy to increase the production speed.

It is preferable that the intermediate pressing member has an adjustable distance between an upper pressing plane that presses the upper surface of the laminated body and a lower pressing plane that presses the lower surface of the laminated body.

According to this structure, the distance between the upper pressing plane that presses the upper surface of the laminated body and the lower pressing plane that presses the lower surface of the laminated body defines the thickness of the plate-like foam material to be manufactured. In manufacturing the plate-shaped foam material, the intermediate pressing member is adjusted after adjusting the distance between the upper pressing plane and the lower pressing plane to the thickness of the plate-shaped foam material. In this case, in the intermediate pressing member, the distance between the upper pressing plane and the lower pressing plane that defines the thickness of the plate-shaped foam material can be adjusted, so that the plate-shaped foam material with various thicknesses can be easily manufactured. It will be possible.

It is preferable that a large number of gas discharge holes are dispersed and opened on the pressing plane of the intermediate pressing member so that gas is blown out from these gas discharge holes.

According to this structure, the gas is blown out from the large number of gas discharge holes distributed and opened in the pressing plane of the intermediate pressing member, and a gas film is formed between the pressing plane and the upper surface or the lower surface of the laminated body. Therefore, the contact resistance (friction resistance) between the intermediate pressing member and the laminate is significantly reduced. As a result, as the contact resistance between the intermediate pressing member and the laminated body decreases, the contact becomes smooth, and the surface accuracy (smoothness) of the plate-shaped foam material improves.

Further, it is preferable that a large number of the gas discharge holes opened on the pressing plane are divided into at least three groups, and the gas is supplied to the gas discharge holes in each group. .

According to this structure, the gas that reduces the contact resistance between the intermediate pressing member and the laminated body is divided into each of a plurality of gas discharge holes opened in the pressing plane into three or more groups. Will be supplied,
Since the bias of the gas supply to the gas discharge holes is suppressed, the gas film is formed substantially evenly between the pressing plane and the upper surface or the lower surface of the laminate. As a result, a gas film that reduces the contact resistance between the intermediate pressing member and the laminated body is evenly formed between the pressing plane and the upper surface or the lower surface of the laminated body. Over time, the contact becomes smoother, and as a result, the surface accuracy (smoothness) of the plate-like foam material is further improved.

Furthermore, at the double conveyor side edge of the intermediate pressing member, a taper is formed on the surface opposite to the pressing plane to taper the edge, and the intermediate pressing member has an edge on the double conveyor side. Is preferably under the drum of the double conveyor.

According to this structure, the upper and lower surfaces of the laminated body are pressed even under the drum of the double conveyor by the edge portion of the intermediate pressing member that is under the drum of the double conveyor. The taper that tapers the edge on the double conveyor side is attached to the surface opposite to the pressing plane, so that the edge of the intermediate pressing member dives under the drum of the double conveyor, so that the laminate is This is because the pressing plane to be pressed extends to below the double conveyor drum. As a result, since the pressing plane of the intermediate pressing member extends to below the drum of the double conveyor, the upper surface and the lower surface of the laminated body can be sufficiently pressed by the pressing plane.

The expandable resin material is preferably a hard polyurethane resin composition. When the expandable resin material is a hard polyurethane resin composition, a rigid polyurethane foam type plate-like foam material having excellent heat insulating properties can be manufactured at low cost, which is convenient.

The plurality of double conveyors arranged in series are heated under different temperature atmospheres, and the double conveyors on the downstream side are heated to a lower heating atmosphere than the double conveyors on the upstream side. Preferably.

According to this constitution, the plate-shaped foam material to be molded is effectively cooled and the hardening is promoted, and the molding accuracy is improved, which is convenient.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic front structure showing a main configuration of a plate-shaped foam material continuous manufacturing apparatus according to the present embodiment.

This continuous production apparatus 1 is equipped with a foamable resin material P.
The long laminated body 2 sandwiching the long sheet-shaped lower surface material 3 and the long sheet-shaped upper surface material 4 is continuously conveyed. Two pressure forming double conveyors 5 and 6 for pressing the laminated body 2 from both sides under a processing temperature atmosphere are arranged in series along the conveyance path of the laminated body 2.
While the long laminate 2 passes through the double conveyors 5 and 6,
As the pressure is applied from both sides in the processing temperature atmosphere, the resin material P is foamed and molded, and the plate-shaped foam material W is continuously manufactured.

The foamable resin material P is not limited to a specific material, but for example, a hard polyurethane resin composition having good foamability can be mentioned. Lower surface material 3
Also, the upper surface material 4 is not limited to a specific material, but examples thereof include a resin film or sheet material, a steel sheet material, a paper material, and plywood. In the case of the continuous manufacturing apparatus 1 of this embodiment, the bottom surface material 3 that is continuously fed horizontally.
The (liquid) foamable resin material (stock solution) P is continuously discharged and supplied from the mixing head 7 to the surface of the. further,
The lower surface material 3 on which the foamable resin material P is discharged and the upper surface material 4 guided by the guide roll 9 and continuously fed from above are laminated by the laminating roll 8 to form the laminated body 2. After that, it is continuously conveyed horizontally.

The double conveyors 5 and 6 are installed in temperature processing chambers (temperature processing furnaces) CH1 and CH2, respectively. Each of the temperature processing chambers CH1 and CH2 is provided with a temperature control means (not shown) for keeping the inside of each of these chambers under a necessary processing temperature atmosphere, and the temperature processing means CH is used by the temperature control means CH.
By keeping the insides of 1 and CH2 at a predetermined processing temperature atmosphere, the double conveyors 5 and 6 are configured to press the laminated body 2 from both sides under the processing temperature atmosphere.

The double conveyor 5 includes rotating drums 5a, 5
b and a pair of conveyors 5A and 5B composed of endless belts 5c (for example, made of metal) suspended between the drums 5a and 5b face each other vertically with a distance corresponding to the thickness of the plate-shaped foam material W. It is located in. The double conveyor 6 also includes the rotating drums 6a and 6b and both of these drums 6
A pair of conveyors 6A and 6B composed of endless belts 6c (for example, made of metal) suspended between a and 6b are arranged so as to face each other at a distance corresponding to the thickness of the plate-shaped foam material W. . In the double conveyors 5 and 6, the intervals between the conveyors 5A and 5B and the conveyors 6A and 6B
It is configured such that the interval B can be adjusted according to the thickness of the plate-shaped foam material to be manufactured (for example, by moving the conveyors 5A and 6A in the vertical direction).

The two double conveyors 5 and 6 are driven synchronously so that the laminated body 2 is between the conveyors 5A and 5B or the conveyor 6.
When it is between A and 6B, the laminated body 2 is pressed by being sandwiched between the endless belt 5c or the endless belt 6c. Then, the laminated body 2 passing through the double conveyors 5 and 6
Then, while the foamable resin material P is being foamed, the endless belt 5c or the endless belt 6c presses and suppresses the laminated body 2 from trying to swell as the foaming progresses. Molding is performed. The plate-shaped foam material W that has come out of the double conveyor 6 after being molded is subjected to processing such as cooling and cutting as necessary, and is completed as a product.

Further, in the case of the continuous production apparatus 1 for plate-like foam material of this embodiment, the upper surface and the lower surface of the laminated body 2 are pressed while the laminated body 2 passes through the gap S between the adjacent double conveyors 5, 6. Intermediate pressing member 10 having continuous pressing plane
Is arranged between the double conveyors 5 and 6. The intermediate pressing member 10 includes an upper surface pressing member 10A having an upper pressing flat surface 10a for pressing the upper surface of the laminated body 2 and the laminated body 2.
And a lower surface pressing member 10B having a lower pressing surface 10b for pressing the lower surface of the upper surface, and the upper pressing surface 10a and the lower pressing surface 10b are installed so as to face each other with a proper distance. As the pressing members 10A and 10B, members made of metal or resin are used.

Pressing planes 10a, 1 of the intermediate pressing member 10
Even if the pressure applied by the double conveyors 5, 6 is interrupted in the gap S between the double conveyors 5, 6 by the pressing by 0b, the pressed state of the upper surface and the lower surface of the laminated body 2 is maintained, and the central portion of the plate-shaped foam material W is maintained. On the top surface material 4
The plate-shaped foam material can be manufactured without causing peeling.

FIG. 5 is a front view of essential parts showing an intermediate pressing member of a continuous manufacturing apparatus for a plate-shaped foam material of a comparative example. As shown in the figure, when the laminated body 2 is pressed with a cylindrical surface, which is a cylindrical surface having a diameter of about 50 to 100 mm and which is sufficiently smaller than the rotary drums 5b and 6a and is continuously spread, as a pressing surface, each roller is pressed. Release pressure while going through RA →
Pressurization → pressure release → pressurization is repeated multiple times, and the laminated body 2
Since the foaming is promoted on the surface portion of the above and the gas accompanying the foaming also accumulates and the upper surface material 4 or the like may be peeled off, it is possible to keep pressing the laminated body 2 on a flat surface such as the pressing flat surfaces 10a and 10b. is necessary.

As described above, the continuous manufacturing apparatus 1 of this embodiment
In the case of, in addition to the two double conveyors 5 and 6 being arranged in series, in the gap S between the double conveyors 5 and 6 where the pressurization by the double conveyors 5 and 6 is interrupted, the pressing plane of the intermediate pressing member 10 is Since the pressed state of the laminated body 2 is maintained by the pressing by the 10a and 10b, the total length of the double conveyors is a combination of the lengths of the two double conveyors 5 and 6.

Therefore, a new double conveyor (double conveyor 6) is added to the existing double conveyor (double conveyor 5) by using the existing continuous production facility for the plate-shaped foam material having one double conveyor. If the continuous manufacturing apparatus 1 is embodied by adding 10 in between and adding in series, the total length of the double conveyor is extended by the additional double conveyor 6, so that the production speed can be increased. For example,
With a double conveyor 5 having a length of 15 m, 10 m to 13
Where the production speed is about m / min, the length is 10m ~
The production speed can be increased to about 20 m / min by adding the double conveyor 6 of about 15 m. Moreover, the additional equipment is substantially the double conveyor 6 and the intermediate pressing member 10 for expansion.
Since the cost is low, there is no significant disadvantage in terms of cost, the construction period is short, and the production speed can be increased easily.

The intermediate pressing member 10 has an upper pressing plane 10
The distance between a and the lower pressing plane 10b is adjustable. Since the laminated body 2 is conveyed while being pressed against both pressing flat surfaces 10a, 10b, both pressing flat surfaces 10a, 1b
The interval of 0b also defines the thickness of the plate-shaped foam material W to be manufactured. Therefore, when manufacturing the plate-shaped foamed material, both flat surfaces 1 should be formed according to the thickness of the plate-shaped foamed material to be manufactured.
The manufacturing is started after adjusting the distance between 0a and 10b. The intervals between the conveyors 5A and 5B and the conveyors 6A and 6B
Since the distance between B also defines the thickness of the plate-like foam material W, the distance between the conveyors 5A and 5B and the distance between the conveyors 6A and 6B are adjusted simultaneously with the adjustment of the distance between the pressing planes 10a and 10b.
The interval of B will also be adjusted.

For example, the plate-like foam material W to be manufactured has a thickness d
When increasing from 1 to d2 (d1 <d2), as shown in FIG. 2, the interval between the conveyors 5A and 5B and the conveyor 6
The distance between A and 6B is increased from d1 to d2, and the distance between both pressing planes 10a and 10b is also increased from d1 to d2. Specifically, for example, the mounting rod 10 provided upright on the back surface of the upper surface pressing member 10A shown in FIG.
By raising and lowering A1, the upper surface pressing member 10A
Is moved up and down to change the distance between the two pressing planes 10a and 10b. As described above, the intermediate pressing member 10 has the pressing plane 10 that defines the thickness of the plate-shaped foam material W.
Since the distance between a and 10b can be adjusted, it is possible to manufacture plate-like foam materials having various thicknesses.

Further, in the intermediate pressing member 10, a taper 10T is formed at each end of the pressing members 10A, 10B on the double conveyors 5, 6 side opposite to the pressing planes 10a, 10b. The double-conveyor 5 side end edge portion is under the drum 5b of the double conveyor 5, and the double-conveyor 6 side edge portion is under the drum 6a of the double conveyor 6. , 6 also under the drums 5b and 6a, the upper and lower surfaces of the laminated body 2 are pressed by the pressing planes 10a and 10b. Since the taper 10T that tapers each edge is provided on the surface opposite to the pressing planes 10a and 10b, the edge of the intermediate pressing member 10 goes under the drums 5b and 6a of the double conveyors 5 and 6. As a result, the pressing planes 10a and 10b also move to the respective drums 5b and 6a.
Because it extends to the bottom. In this way, the pressing plane 1 is pushed to the bottom of the drums 5b and 6a of the double conveyors 5 and 6.
When 0a and 10b are expanded, the pressing planes 10a and 10b
Sufficient pressing of the upper and lower surfaces of the laminate 2 by b.

In particular, if the taper 10T is formed on the cylindrical concave surface so as to closely follow the cylindrical convex surfaces of the drums 5b and 6a of the double conveyors 5 and 6, as shown in FIGS. The end edges of the members 10A and 10B on the double conveyors 5 and 6 side can be made to go deep into the drums 5b and 6a, and the pressing planes 10a and 10b can be enlarged. On the other hand, as shown in FIG. 5, when the cylindrical roller RA is continuously spread and the laminated body 2 is pressed, for example, as shown in FIG.
Is 1000 mm and the diameter of the cylindrical roller RA is 100 mm, an unpressurized zone Z having a length of 300 mm occurs.

Further, as shown in FIG. 4, a large number of gas discharge holes 11 are dispersedly opened in a vertical and horizontal alignment in the pressing planes 10a and 10b of the pressing members 10A and 10B, and the gas discharge holes 11 are formed. A gas (for example, air) can be blown from the top to the upper surface or the lower surface of the laminated body 2. The gas discharge holes 11 usually have a diameter of about 0.5 to 1.0 mm and an opening pitch of 40 mm or more, but the present invention is not limited to this. A gas film (for example, an air film) is formed by the gas blown out from the gas discharge holes 11 between the upper surface and the lower surface of the laminated body 2 and the pressing planes 10a and 10b of the pressing members 10A and 10B, and the intermediate pressing member 10 is formed.
The contact resistance of the laminated body 2 is reduced and the contact becomes smooth, and as a result, the surface accuracy (smoothness) of the plate-shaped foam material W is improved.

It is preferable that the large number of gas discharge holes 11 which are opened in the pressing planes 10a and 10b are divided into three groups G1, G2 and G3, as shown by a chain line in FIG. Then, as shown in FIG.
The gas supply line 13 from the gas supply source 12 is
After splitting into two branch lines 13a, 13b, 13c,
The gas release holes 11 are connected to the groups G1, G2, G3, respectively, and the gas is supplied to the gas release holes 11 separately for the groups G1, G2, G3. In addition, each branch line 13a, 13b, 1
3c is provided with gas decompressors 14A to 14C, respectively, and the gas of the gas supply source 12 is gas decompressor 14A.
It is supplied after being adjusted to a pressure in a suitable range of 0.02 to 0.04 MPa / cm ^{2 at} -14C. The gas that reduces the frictional resistance of the contact surface between the intermediate pressing member 10 and the laminated body 2 is not limited to the form of being divided into three, and may be divided into an appropriate number of four or more.

As described above, when the gas for reducing the frictional resistance of the contact surface between the intermediate pressing member 10 and the laminated body 2 is divided into three and supplied to the gas discharge hole 11, the gas discharge hole 11
The bias of the gas supply to the pressing plane 10a,
Since a gas film is formed substantially evenly between the upper surface and the lower surface of the laminated body 10b and the laminated body 2, the contact resistance between the intermediate pressing member 10 and the laminated body 2 is reduced over the entire contact surface, resulting in smoother contact. The surface accuracy (smoothness) of the plate-shaped foam material W is further improved.

When the intermediate pressing member 10 is made of metal, a resin plate for protection may be attached to the pressing planes 10a and 10b, or a chromium plating layer for protection may be formed. By pressing the resin plate or forming a chrome-plated layer, the pressing flat surfaces 10a and 10b are protected, and even if the lower surface material 3 and the upper surface material 4 are rigid materials such as metal materials, the surface of the plate-like foam is scratched. It becomes difficult to attach.

The continuous manufacturing apparatus 1 of the present embodiment is not limited to the case where the temperatures of the processing temperature atmospheres of the temperature processing chambers CH1 and CH2 are the same, but the processing temperature atmospheres may have a temperature difference. For example, depending on the formulation of the polyurethane resin composition, the chamber CH1 is set to a heat treatment atmosphere and the chamber CH2 is set to a cooling treatment atmosphere lower by 15 to 50 ° C. to cool and cure the surface of the urethane foam. In addition to promoting smoothing of the surface, cooling of the product can be promoted and packaging and shipping can be performed promptly. For example, the temperature processing chamber CH1 is set to a temperature atmosphere of 50 to 80 ° C., and the temperature processing chamber C is
It is conceivable that the temperature of H2 is 20 to 30 ° C., etc. By doing so, it is possible to effectively promote cooling and curing and improve the molding accuracy.

Further, the chamber CH2 is replaced with the chamber CH
It is also possible to set the heat treatment atmosphere at a temperature higher than 1 to make the chamber CH1 a preliminary heat treatment atmosphere and the chamber CH2 a main heat treatment atmosphere. That is, in the above-mentioned embodiment, since the double conveyors 5 and 6 are installed in the separate temperature processing chambers CH1 and CH2, the efficiency can be improved by controlling the temperature of the processing temperature atmosphere of the temperature processing chambers CH1 and CH2. It is possible to perform a good cure.

[Other Embodiment] (1) In the above embodiment, an example was shown in which the gas release hole 11 was opened in both the pressing planes 10a and 10b, but the gas release hole 11 is in any of the pressing planes 10a and 10b. It may be opened only on one side.

(2) In the above embodiment, an example in which the double conveyors 5 and 6 are installed in the separate temperature processing chambers CH1 and CH2 has been described.
May be installed in the same temperature processing chamber.

(3) In the above embodiment, an example in which two double conveyors 5 and 6 are arranged in series has been described.
The number of double conveyors arranged in series is not limited to two and may be three or four or more.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a main configuration of a plate-shaped foam material continuous manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a front view showing an intermediate pressing member in the apparatus shown in FIG.

FIG. 3 is a perspective view showing an upper surface pressing member in the apparatus of FIG.

4 is a plan view showing a pressing plane of an intermediate pressing member in the apparatus of FIG.

FIG. 5 is a front view of an essential part showing an intermediate pressing member of a continuous manufacturing apparatus for a plate-shaped foam material of a comparative example.

FIG. 6 is a partial front view illustrating an arrangement state of an intermediate pressing member in a device of a comparative example.

FIG. 7 is a schematic front view showing a main part configuration of a conventional continuous production apparatus for a plate-shaped foam material.

[Explanation of symbols]

1 Continuous production equipment for plate-like foam materials 2 laminate 3 Long sheet-like bottom material 4 Long sheet top material 5,6 Double conveyor for pressure molding 5b, 6a double conveyor drum 10 Intermediate pressing member 10a Upper pressing plane 10b Lower pressing plane 10T taper 11 Gas release hole G1-G3 (for gas release holes) group P foamable resin material W Plate foam

Claims (6)

[Claims] 1. A laminated body in which a foamable resin material is sandwiched between a long sheet-shaped lower surface material and an upper surface material, and the laminated body is formed under a processing temperature atmosphere along a path for continuously conveying the laminated body. A plurality of pressure-forming double conveyors for pressing from both sides are arranged in series, and a pressing plane that keeps pressing the upper surface and the lower surface of the laminated body while the laminated body passes through the gap between the adjacent double conveyors. An apparatus for continuously manufacturing a plate-shaped foam material, in which an intermediate pressing member having the above is arranged. 2. The plate-like foam according to claim 1, wherein the intermediate pressing member has an adjustable space between an upper pressing plane that presses an upper surface of the laminated body and a lower pressing plane that presses a lower surface of the laminated body. Continuous production equipment for wood. 3. The plate-like foam material according to claim 1, wherein a large number of gas discharge holes are dispersed and opened on the pressing plane of the intermediate pressing member, and gas is blown out from these gas discharge holes. Continuous manufacturing equipment. 4. A large number of the gas discharge holes open to the pressing plane are grouped into at least three groups, and gas is supplied to the gas discharge holes in each group. The continuous production apparatus for the plate-shaped foam material according to claim 3. 5. The double conveyor side end of the intermediate pressing member has a taper on the opposite side of the pressing plane to taper the end, and the intermediate pressing member has an end on the double conveyor side. The continuous manufacturing apparatus for a plate-shaped foam material according to any one of claims 1 to 4, wherein an edge portion of the double conveyor is under the drum. 6. A plurality of the double conveyors arranged in series are heated under different temperature atmospheres, and the downstream double conveyor has a lower heating atmosphere than the upstream double conveyor. Heated 1-5
An apparatus for continuously producing a plate-shaped foam material according to any one of 1.