JP2873173B2 - Method for producing foam synthetic resin-filled plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the production of a foamed synthetic resin-filled plate material in which a synthetic resin to be foamed while heating is injected into a hollow plate, and the injected synthetic resin is foamed while the hollow plate is heated by a hot plate. Method.

[0002]

2. Description of the Related Art Synthetic resin-filled plate materials in which a synthetic resin foam is filled are widely used for panels having excellent heat insulating properties. The foamed synthetic resin-filled plate is manufactured using the apparatus shown in FIG. 1 as follows.

A hollow plate 2 is assembled in a material setting place 1. The hollow plate 2 is a plate material having a hollow inside so that a synthetic resin can be injected. The hollow plate 2 is assembled by fixing a surface plate to both sides of a rectangular frame member. The hollow plate 2 contains a core material for supporting the face plate if necessary. The assembled hollow plate 2 is carried into the shelf of the loader 3. The loader 3 has a multi-stage shelf (not shown). Loader 3
When the hollow plate 2 is carried into all the shelves, the loader 3 moves to the right of the press device 4. The hollow plate 2 is supplied from the shelf of the loader 3 between the hot plates of the press device 4. At this time, the plurality of hollow plates 2 are carried into the hot plate together. The loader 3 having carried the hollow plate 2 into the hot plate moves upward in FIG.

The hot plate is closed and both surfaces of the hollow plate 2 are pressed with the hot plate. In this state, a synthetic resin is injected into the hollow plate 2. The synthetic resin is a synthetic resin that is foamed while being heated, for example, a urethane resin. The synthetic resin is injected into the hollow plate from the gun by inserting the tip of the gun into the injection hole of the hollow plate. The gun is moved vertically to inject synthetic resin into all the hollow plates pressed by the hot plate in order. The synthetic resin injected into the hollow plate is foamed while being heated by the hot plate. The hot plate assists the injected synthetic resin in foaming, and holds the hollow plate in a pressed state to prevent the foamed synthetic resin from pressing and deforming the surface material of the hollow plate. I do.

When the injected synthetic resin foams and hardens, all the hot plates are opened, and the foamed synthetic resin-filled plate 6 is taken out to the shelf of the unloader 7 from between the hot plates. The unloader 7 into which the foamed synthetic resin-filled plate 6 is carried from the hot plate has moved to the right of the press device 4. Unloader 7 is shown in FIG.
Move downward, and take out the foamed synthetic resin-filled plate 6 from the unloader 7. After the unloader 7 moves downward, the loader 3 with the hollow plate 2 set on the shelf moves to the side of the press device 4, and carries the hollow plate 2 between the hot plates 5 of the press device 4. Thereafter, the steps (1) to (4) are repeated to inject a synthetic resin into the hollow plate and foam-harden it to produce a foamed synthetic resin filled plate.

[0006]

As described above, the conventional method for producing a foamed synthetic resin-filled plate material includes a method in which a plurality of hollow plates are placed in a pressing device 4 using a loader 3 between all open hot plates. Bring in. The loader 3 carries a plurality of hollow plates together from the shelf to the hot plate of the press device 4. Further, the unloader 7 discharges the foamed synthetic resin-filled plate material 6 formed by foaming the synthetic resin together from between the opened hot plates 5. Loader 3
The unloader 7 and the unloader 7 are disposed on the side of the press device 4.
The loader 3 supplies the hollow plate 2 to the hot plate 5, and the unloader 7 discharges the foamed synthetic resin filled plate 6 formed by foaming and curing the synthetic resin from the hot plate 5. Thus, the loader 3 and the unloader 7
The method of supplying the hollow plate 2 to the hot plate 5 and discharging the foamed synthetic resin-filled plate material 6 from the hot plate 5 using the above method makes the whole system considerably large. The loader 3 and the unloader 7
Is a complicated and considerably expensive mechanism because a large number of hollow plates 2 and a foamed synthetic resin-filled plate 6 are put in and out. For this reason, there is a disadvantage that the cost of the production line is considerably high.

Further, in this manufacturing method, since the synthetic resin is injected into the hollow plate while being pressed against the hot plate, it takes time to inject the synthetic resin into a large number of hollow plates sandwiched in multiple stages. Since the synthetic resin is injected into the hollow plates one by one, the injection time cannot be reduced, and the processing capacity per time decreases. Further, in order to inject the synthetic resin into the multistage hollow plate, it is necessary to move the injection gun up and down in accordance with the vertical position of the hollow plate. For this reason, it is difficult to increase the processing capacity per time.

Further, in the method using a loader and an unloader, a large number of hollow plates are simultaneously loaded and a foamed synthetic resin-filled plate material which has been foam-cured is simultaneously discharged. It is difficult to reliably transfer an accurate position. There is a disadvantage that the apparatus stops even if one hollow plate or a foamed synthetic resin-filled plate material cannot be conveyed well during the conveyance. Furthermore, since a large number of hollow plates and a foamed synthetic resin-filled plate are conveyed in multiple stages, there is a disadvantage that it takes time and effort to correct a clogged hollow plate or a foamed synthetic resin-filled plate to a normal state.

The present invention has been developed to solve this drawback. An important object of the present invention is to provide a method for producing a foamed synthetic resin-filled plate which can efficiently produce a foamed synthetic resin-filled plate using a compact and low-cost apparatus.

[0010]

According to the production method of the present invention, in order to achieve the above-mentioned object, a foamed synthetic resin-filled plate is produced as follows. In the manufacturing method of the present invention, the hollow plate 2 is sandwiched between the hot plates 5 stacked in a plurality of stages, a synthetic resin is injected into the hollow plate 2 sandwiched between the hot plates 5, and the injected synthetic resin is removed. This is an improvement of the production method of foaming by heating with a hot plate 5.

According to the method for producing a foamed synthetic resin-filled plate material of the present invention, the hollow plate 2 is held in a state of being pressed by a plurality of stages of the hot plate 5, a part of the hot plate 5 is opened, and the opened hot plate 5 is opened. 5, the hollow plate 2 is carried in. Further, the foamed synthetic resin-filled plate material 6 in which the synthetic resin is foamed is discharged from between the opened hot plates 5. That is, the method for producing a foamed synthetic resin-filled plate material of the present invention comprises:
The hot plate 5 holds the synthetic resin-injected hollow plate 2 in a pressed state, discharges the foamed synthetic resin-filled plate 6 from the non-pressed hot plate 5, and loads the hollow plate 2. It is characterized by doing.

[0012]

The method for producing a foamed synthetic resin-filled plate material of the present invention is as follows.
While the synthetic resin-injected hollow plate 2 is pressed and heated by the hot plate 5, a part of the hot plate 5 is opened, and the foam synthetic resin filled plate 6 and the hollow plate 2 are put in and out. In order to realize this, a part of the hot plate 5 is opened by opening the pressure, as shown in FIG. The hot plate 5, which is not opened, sandwiches the hollow plate 2 into which the synthetic resin is injected, and presses and heats the surface thereof. The foamed synthetic resin-filled plate 6 and the hollow plate 2 are put in and taken out between the hot plates which are opened and the interval is widened. Thereafter, the hot plate 5 is closed and the hollow plate 2 is pressed to inject the synthetic resin. The multi-stage hot plates 5 are sequentially opened and opened, pressed for a certain period of time, and the foamed synthetic resin-filled plate material 6 obtained by heating and foaming the injected synthetic resin is taken out. After the foamed and hardened foamed synthetic resin-filled plate 6 is taken out between the hot plates 5 which are opened by opening the pressure, the hollow plate 2 is carried in. Thereafter, the hot plate 5 is closed and the synthetic resin is injected into the hollow plate 2, and thereafter, the hollow plate 2 is kept in a pressurized and heated state.

The press device 4 shown in FIGS. 2 and 3 opens the space between the sixth and seventh hot plates 5 from the bottom to discharge the foamed synthetic resin filled plate material 6 in which the synthetic resin has been cured. The hollow plate 2 is carried into the step. The hollow plate 2 becomes a foamed synthetic resin-filled plate 6 when a synthetic resin is injected and cured. After the hollow plate 2 is supplied, the hot plates 5 other than the sixth and seventh plates are closed, synthetic resin is injected into the hollow plate, and the injected synthetic resin is heated to foam and harden. In this manner, the spaces between the hot plates 5 are opened in order from the top, or from the bottom, or in a predetermined order, the foamed synthetic resin-filled plate 6 is discharged, the hollow plate 2 is loaded, and the hot plate 5 is closed and a synthetic resin is injected to foam and harden the synthetic resin. FIGS. 3 and 3 show that the hot plate 5 is opened one step and one foam synthetic resin filled plate material 6 is discharged.
Further, one hollow plate 2 is carried in.

Although not shown, the method for producing a foamed synthetic resin-filled plate of the present invention is such that two or more hot plates 5 are opened, and two or more hollow plates 2 are carried in between the opened hot plates 5. Alternatively, the foamed synthetic resin-filled plate 6 can be discharged. However,
Not all hot plates 5 are opened. When some of the hot plates 5 are opened, the other hot plates 5 are closed and the hollow plate 2 is pressed to be kept in a heated state.

As described above, a method of opening and opening a part of the hot plates 5 to open and discharge the foamed synthetic resin-filled plate material 6 from here and loading the hollow plate 2 is performed by pressing the hollow plate 2, As a heating state, the foam synthetic resin-filled plate 6 and the hollow plate 2 are put in and out. When the foamed synthetic resin-filled plate 6 and the hollow plate 2 are taken in and out, the hot plate 5 that is not opened is pressing the hollow plate 2 into which the synthetic resin is injected. As in the conventional manufacturing method, all the hot plates 5 are opened and a large number of hollow plates 2 are carried in at the same time, and a large number of foamed synthetic resin filled plate materials 6 are not discharged at the same time. For this reason, the manufacturing method of the present invention does not require the loader 3 for carrying in a large number of hollow plates 2 at the same time and the unloader 7 for carrying out the foamed synthetic resin filled plate 6. Further, the hollow plate 2 into which the synthetic resin has been injected is heated so as to be kept in a state of being foamed and cured, and the foamed synthetic resin-filled plate material 6 in which the synthetic resin has been foamed and cured is discharged from the hot plate 5.
, The synthetic resin can be efficiently heated and foamed.
Further, it is not necessary to transfer a large number of hollow plates 2 and the foamed synthetic resin-filled plate 6 together, so that loading and discharging of the hollow plate 2 and the foamed synthetic resin-filled plate 6 can be performed simply and easily.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. However, the following examples illustrate a manufacturing method for embodying the technical idea of the present invention,
The present invention does not specify a manufacturing method as follows.

Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims”, “action”, and “action”. In the column of "Means for solving the problem". However, the members shown in the claims are
It is by no means specific to the members of the embodiment.

According to the method for producing a foamed synthetic resin-filled plate of the present invention, a foamed synthetic resin-filled plate is produced using the apparatus shown in FIGS. The apparatus shown in the figure will be described, and a method of manufacturing a foamed synthetic resin-filled plate using the apparatus will be described in detail.

The apparatus shown in the figure includes a frame 8, a moving frame 9 connected to the frame 8 so as to be able to move up and down, a main cylinder 10 fixed to the moving frame 9 and pressing the hot plate 5; A plurality of hot plates 5 arranged in multiple stages so as to be able to move up and down in the moving frame 9; intermediate expanding means 11 for opening between the hot plates 5 to insert and remove the hollow plate 2; A moving cylinder 12 for moving the means 11 in and out of both sides of the hot plate 5 and a transfer means 1 for transferring a hollow plate between the hot plates 5
3 and an injection means 14 for injecting a synthetic resin into the hollow plate 2 sandwiched between the hot plates 5.

The moving frame 9 has a frame shape in which the hot plates 5 can be arranged in multiple stages inside. Method for producing a foamed synthetic resin filling plate of the present invention, as in the prior art, is not open at one <br/> cord all hands multistage hot plate. A part of the hot plate is opened, and the foam synthetic resin filled plate material and the hollow plate are taken in and out. Therefore, the height of the moving frame 9 is designed to be low so that some of the hot plates 5 can be opened. As shown in FIG. 2, the traveling frame 9 has traveling wheels 15 fixed on both sides of an upper end and a lower end. The running wheel 15 moves along the inside of the frame 8, and the moving frame 9 moves up and down. The reason why the moving frame 9 is moved up and down is that the hollow plate and the foamed synthetic resin filled plate material are put in and out of the hot plate 5 of each stage by the transfer means 13 which does not move up and down. In order to move the moving frame 9 up and down, the moving frame 9 is connected to up-and-down means 16 fixed to the frame 8. The vertical means 16 is a vertically fixed cylinder, which extends the rod to raise the moving frame 9 and expands and contracts the rod to lower the moving frame 9.

The main cylinder 10 is fixed to the upper part of the moving frame 9 and presses the hot plate 5 from top to bottom. The device shown in the figure has four main cylinders 10 vertically fixed to the upper part of the moving frame 9. The main cylinder 10 has a pressing plate fixed to the lower end. The main cylinder 10 presses the hot plate 5 with a constant pressure via a pressing plate. The main cylinder 10 is designed to always press the hot plate 5 with a constant pressure even if the press hot plate 5 moves up and down. Hot plate 5
This is because the hot plate 5 presses and sandwiches the hollow plate even when a part of the hollow plate is opened.

The hot plate 5 is connected to a moving frame 9 via guide means (not shown) so as to be able to move up and down. There are a plurality of hot plates 5 so that a large number of hollow plates can be pressed and heated at the same time. The hot plate 5 is heated by the steam, and foams the injected synthetic resin while heating the hollow plate. In order to heat the hot plate 5 with steam, a steam path through which the heated steam passes is opened inside the hot plate 5. The hot plate 5 is heated to about 40 ° C. by passing the heated steam through the steam path, and the hollow plate 2 is sandwiched between the heated hot plates 5 for production. However, the heating temperature of the hot plate 5 is set to an optimum value by the synthetic resin injected into the hollow plate 2. As shown in FIG. 2, the hot plate 5 has convex ridges on both sides so that a part of the hot plate 5 can be opened and the hollow synthetic resin-filled plate material can be taken in and out with the main cylinder 10 pressing the hollow plate 2. 5A is provided. The convex strip 5A is pressed by the intermediate expanding means 11 to partially open the hot plate 5.

The intermediate expanding means 11 includes an expanding hook 11A and a pressing hook 11B for hooking and opening the hot plate 5, an opening and closing cylinder 11C for driving the expanding hook 11A, and a movable table 11D for fixing the opening and closing cylinder 11C. Have.
The opening / closing cylinder 11C is connected to the frame 8 via the moving table 11D.
It is fixed to. The open / close cylinder 11C is a specific hot plate 5
Press up to open the pressure. The opening / closing cylinder 11C is provided at the tip of the rod with an expanding hook 11A for pushing up the hot plate 5.
Is fixed. A pressing hook 11B that pushes down the hot plate 5 is fixed to the movable base 11D of the opening / closing cylinder 11C. The pressing hook 11 </ b> B pushes down the hot plate 5, and the opening / closing hook pushes up the hot plate 5 to expand the space between the specific hot plates 5.

The expanding hook 11A and the pressing hook 11B are moved to a position where they do not interfere when the moving frame 9 is moved up and down. In order to realize this, the moving cylinder 12 rotates the moving table 11D. The moving cylinder 12 has the upper end on the frame 8 and the lower end of the rod on the moving table 11.
D is connected to the tip of the arm. When the rod is pushed out in the direction of the arrow, the moving cylinder 12 shown in FIG. 2 rotates the moving table 11D in the direction of the arrow so that the expanding hook 11A and the pressing hook 11B do not disturb the movement of the moving frame 9. Move to position. When the rod is contracted and moved in the direction opposite to the arrow, as shown in FIG. 2, the expanding hook 11A and the pressing hook 11B are moved to a position where the ridge of the hot plate 5 can be pressed.

The transfer means 13 is a so-called tray belt type, and includes a thin belt conveyor 13A inserted between the opened hot plates 5, and a main body for moving the belt conveyor 13A forward and backward. I have. The main body is inserted between the hot plates 5 without rotating the belt conveyor 13A on which the hollow plates 2 are placed, and the hollow plate 2 is carried between the hot plates 5. At this time, the foamed synthetic resin-filled plate material 6 which is located between the hot plates 5 and has completed foaming and curing of the synthetic resin is extruded at the end of the belt conveyor 13A and discharged. Thereafter, the belt conveyor 13A retreats while transferring the hollow plate 2 placed thereon onto the hot plate 5. When the speed at which the belt conveyor 13A moves backward and the speed at which the belt conveyor 13A transfers the hollow plate 2 are the same, the hollow plate 2 is transferred onto the hot plate 5 without moving.

The injection means 14 is arranged below the transfer means 13. The injection means 14 includes an injection gun 14A for injecting the synthetic resin into the hollow plate 2, a front-rear cylinder 14B for moving the injection gun 14A back and forth, and a supply pump for press-fitting the synthetic resin to be foamed while being heated into the injection gun 14A (FIG. (Not shown). The injection gun 14 </ b> A has a distal end shaped to be inserted into an injection hole opened at an end of the hollow plate 2. The front and rear cylinders 14B are for the injection gun 1
4A is moved back and forth, and the injection gun 14A is put in and out of the injection hole of the hollow plate 2.

In the apparatus shown in FIG. 2, the movable frame 9 is moved up and down so that the hollow plate 2 into which the synthetic resin is injected is injected into the injection gun 14A.
The injection gun 14A does not need to be moved up and down because it is moved to the same height as. The device shown in FIG.
Although 4A is arranged below the transfer means 13, the injection gun 14A can be arranged at the same height as the transfer means 13. Although not shown, the injection gun disposed at the same height as the transfer means is disposed on the side of the hollow plate to inject the synthetic resin into the hollow plate. The injection gun provided with the injection gun at the same height as the transfer means can carry the hollow resin between the hot plates, close the hot plate, and then inject the synthetic resin without moving the moving frame up and down.

As the synthetic resin injected into the hollow plate 2 by the injection gun 14A, a two-part urethane resin is optimal. As the synthetic resin, any resin that is in the form of a paste or liquid until it is injected into the hollow plate and that foams when injected into the hollow plate and heated is used. The injection pump pressurizes and supplies the paste or liquid synthetic resin to the injection gun 14A.

The apparatus shown in FIGS. 2 and 3 manufactures a foamed synthetic resin-filled plate in the following steps. [Step of Supplying Hollow Plate Between Hot Plates and Injecting Synthetic Resin] (1) At the beginning of the operation, the hollow plate 2 is not supplied between the hot plates 5. (2) The rod of the moving cylinder 12 is pushed out, and the expanding hook 11A and the pressing hook 11B are moved to a position that does not hinder the vertical movement of the moving frame 9. (3) Move the moving frame 9 to the uppermost position. (4) The rod of the moving cylinder 12 is contracted, and the expanding hook 11A and the pressing hook 11B are moved to positions where they are hooked on the ridges of the hot plate 5. At this time, the main cylinder 10 is pressing the hot plate 5. (5) The rod of the opening / closing cylinder 11C is pushed out, and the second hot plate 5 from below is pushed up. The first hot plate 5 does not rise because it is pressed by the pressing hook 11B. Therefore, the pressure between the first and second hot plates 5 is opened and opened. (6) The belt conveyor 13A of the transfer means 13 places the hollow plate 2 thereon and inserts it between the opened hot plates 5 to transfer the hollow plate 2 onto the hot plate 5. (7) Thereafter, the belt conveyor 13A is retracted while rotating the belt conveyor 13A so that the hollow plate 2 is not pulled out of the hot plate 5. In this way, the transfer means 13 sends the hollow plate 2 onto the open hot plate 5. (8) The open / close cylinder 11C is contracted to bring the first and second hot plates 5 into a pressed state. (9) The open / close cylinder 11C is moved to a position where it does not interfere, and the moving frame 9 is lowered by a height corresponding to one step of the hot plate 5. (10) The injection gun 14A is advanced by the front and rear cylinders 14B. The tip of the injection gun 14A is inserted into an injection hole of the hollow plate 2 sandwiched between the first and second hot plates 5. After injecting the determined amount of synthetic resin, the front and rear cylinders 14B retract the injection gun 14A. (11) The movable base 11D is tilted to move the pressing hook 11B and the opening / closing hook to a position where they are hooked on the ridges of the second and third hot plates 5. (12) The rod of the opening / closing cylinder 11C is pushed out to open the second and third hot plates 5, and the hollow plate 2 is supplied on the second hot plate 5. (13) Then, the moving frame 9 is lowered, and the synthetic resin is injected into the hollow plate 2 sandwiched between the second and third hot plates 5.

The above steps are repeated to supply a hollow plate between all the hot plates. The hollow plate 2 is sandwiched between the hot plates 5 and a synthetic resin is injected. The hollow plate 2 into which the synthetic resin has been injected is sandwiched between the hot plates 5 and foamed and cured in order from the lower one. The cured synthetic resin-filled plate material is taken out from the bottom in order, and the hollow plate 2 into which the synthetic resin is injected is supplied. The belt conveyor 13A inserted between the hot plates 5 in which the hollow plates 2 are opened presses out the foamed synthetic resin-filled plate material 6 in which the synthetic resin has been cured when entering between the hot plates 5. The hot plate 5 is pushed open by the expanding hook 11A and the pressing hook 11B, and the belt conveyor 13A is inserted between the opened hot plates 5 to discharge the foamed synthetic resin-filled plate 6 and supply the hollow plate 2.
When the foamed synthetic resin-filled plate material 6 is discharged and the hollow plate 2 is supplied, as shown in FIGS.
Is pushed up by the expanding hook 11A, and the lower hot plate 5 is pushed down by the pressing hook 11B to open the space between the hot plates 5 to expand. In this state, the hot plate 5 at the lower stage than when the pressure is opened is pressed by the pressing hook 11B.
And the hot plate 5 above the opening pressure is pressed by the main cylinder 10. Therefore, the hot plate 5 other than the one to be opened is kept in the pressed state. The hollow plate 2 supplied between the hot plates 5 is injected with a synthetic resin after being sandwiched between the hot plates 5.

In the apparatus shown in FIGS. 2 and 3, the space between the hot plates 5 is expanded in one step, and one hollow plate and a foamed synthetic resin-filled plate are conveyed. However, as shown in FIG. 4, two movable cylinders 11C are provided on the movable base 11D, the hot plate 5 is opened in two stages, the two foamed synthetic resin filled plate materials are discharged together, and the hollow plate is carried in. You can also. In this case, the transfer means 13
Also has a two-stage transfer structure capable of transferring two hollow plates and a foamed synthetic resin-filled plate together. Furthermore, it is also possible to open three or more hot plates, carry in three or more hollow plates together, and discharge a foam-filled synthetic resin-filled plate.

[0032]

According to the method for producing a foamed synthetic resin-filled plate of the present invention, a pressure is applied between some hot plates, a hollow plate is carried in between the hot plates, and a foamed synthetic resin-filled plate obtained by foaming and curing the synthetic resin is produced. Discharge. That is, the hollow plate into which the synthetic resin has been injected is maintained in a heated state, and the foamed synthetic resin-filled plate material in which the synthetic resin has been cured is discharged from between the hot plates, and the hollow plate is carried in here. When the foam synthetic resin-filled plate and the hollow plate are taken in and out, the hot plate that is not opened is pressing the hollow plate into which the synthetic resin has been injected. Unlike the conventional manufacturing method, all the hot plates are opened and a large number of hollow plates and a foamed synthetic resin-filled plate are not taken in and out at the same time. In this way, the manufacturing method of the present invention, in which the foamed synthetic resin-filled plate material and the hollow plate are taken in and out between some of the hot plates, and this state is repeated in order to carry in the hollow plate between all the hot plates and manufacture, Unlike the related art, there is no need for a loader for simultaneously loading and discharging a large number of hollow plates and an unloader for discharging a foamed synthetic resin-filled plate material in which a synthetic resin is cured. This is because the hollow plate is carried into all the hot plates at once, and the foamed synthetic resin-filled plate material in which the synthetic resin is cured is not discharged. Therefore, the manufacturing method of the present invention can significantly reduce the cost of the entire plant and can significantly reduce the installation area. Further, since a loader and an unloader are not required, the power is significantly reduced and an energy saving plant can be obtained.

Further, the manufacturing method of the present invention has a feature that the foamed synthetic resin-filled plate can be efficiently manufactured since the foamed synthetic resin-filled plate and the hollow plate are taken in and out while the hollow plate is pressed and heated. Also, since there is no need to transport a large number of hollow plates and the foamed synthetic resin-filled plate together, there is also a feature that the loading and discharging of the foamed synthetic resin-filled plate can be made simple and easy, and the plant stoppage due to an accident can be reduced. .

[Brief description of the drawings]

FIG. 1 is a schematic plan view of an apparatus for manufacturing a foamed synthetic resin-filled plate by a conventional method.

FIG. 2 is a side view showing an example of an apparatus used in the manufacturing method of the present invention.

FIG. 3 is a front view of the apparatus shown in FIG. 2;

FIG. 4 is a front view showing a main part of another apparatus used in the manufacturing method of the present invention.

[Explanation of symbols]

1 ... material setting place 2 ... hollow plate 3 ... loader 4 ... press device 5 ... hot plate 5A ... ridge 6 ... foam synthetic resin filled plate 7 ... unloader 8 ... frame 9 ... moving frame 10 ...... main cylinders 11 ...... intermediate expansion means 11A ...... spreader hook 11B ... pushing the hook 11C ...... closing cylinder 11D ... movable carriage 12 ...... moving cylinder 13 ...... transferring means 13A ...... belt conveyor 14 ... … Injection means 14A …… injection gun 14B… front and rear cylinders 15 …… running wheels 16 …… up and down means

Claims (1)

(57) [Claims] 1. A hollow plate (2) is sandwiched between hot plates (5) stacked in a plurality of stages, and a synthetic resin is injected into the hollow plate (2) sandwiched between the hot plates (5). In the method for producing a foamed synthetic resin-filled plate material (6) in which the injected synthetic resin is foamed while being heated by the hot plate (5), the hot plate (5) having a plurality of stages includes a hollow plate (2 ) Is held in a pressed state, opening between a part of the hot plate (5),
Load the hollow plate (2) between the open non-pressed hot plates (5),
After that, press the hollow plate with hot plate (5) and inject synthetic resin
After curing the injected synthetic resin in a foamed state,
Opening a part of the plate (5), the synthetic resin- cured foamed synthetic resin-filled plate (6) is inserted between the hot plates (5) in the non-pressed state.
Method for producing a foamed synthetic resin filler plate material, characterized that you discharge.