JPS62271727A - Manufacture of frp molded product - Google Patents

Abstract

PURPOSE:To obtain a molded material whose quality is uniform by improving productivity, by a method wherein an FRP molded material is molded on a molding tool through an action of each part by moving the molding tool on a molding line. CONSTITUTION:A molding tool 1 is constituted of the top 1a, a suspension surface 1b suspended from an end fringe of the top 1a and a plane 1c extending horizontally from the lower end of the suspension surface 1b, which is mounted on a molding line movably. A gelcoat application part A is formed on a molding surface 1' of the molding tool 1 by applying gelcoat resin layer 100 to the molding surface 1' for the surface of a molded product. A surface side resin molding part B is constituted of a glass supply part, FRP resin supply part and defoaming part by interlocking them electrically with one another. A urethane pressure bonding part C is arranged on a down stream side of the surface side resin molding part B and a unit plate 18 of foamed urethane which has the same area as that of a pressure plate c1 and bored a large number of resin jets is mounted on the molding surface 1'. Then the same is bonded with pressure by an air cylinder 17 from the upper part and press bonding state is held until the FRP resin is solidified. A molded product is obtained by demolding an FRP molded material F, whose backside resin layer has been molded by a backside resin molding part D, after core.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to FRP molded products, more specifically, to floor panels for swimming pools with lengths of meters to several tens of meters, etc. So-called large FR
The present invention relates to a method for manufacturing P molded products.

[Prior art and its problems]

Conventionally, for this type of large FRP molded product, a mold equipped with casters was sequentially moved to various locations, and at each location, the following operations were performed manually: applying gel coat, resin molding on the front side, urethane bonding, and resin molding on the back side. Because it is manufactured by

[Problem that the invention seeks to solve]

The problem to be solved by the present invention is to improve productivity and obtain molded products of uniform quality.

(Means for Solving the Problems) The technical means taken to solve the above problems is to movably place a mold on an endless molding line and to install a gel coat coating section on the line.

The front resin molding part, the urethane crimping part, and the back resin molding part are sequentially arranged, and the mold is moved on the molding line and the FRP molded body is molded into the mold by the action of each part. It is to remove the mold.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

The present invention includes an endless molding line (2), a mold (1) movably placed on the molding line (2), and a gel coat coating 11 (A) sequentially placed on the line (2).
, a front side resin molded part (B), a urethane crimped part (C), and a back side resin molded part (D).

The mold (1) has an upper surface (1a), a hanging surface (1b) hanging from one end edge of the upper surface (1a), and the hanging surface (1b).
A molding surface (1C) consisting of a plane (1C) extending horizontally from the lower end
1') for a so-called swimming pool floor panel, which is movably placed on the forming line (2).

The molding line (2) has parallel rails (1e) that guide the wheels (1d) of the mold (1), and the rails (1e).
It consists of a moving device 2 (E) disposed between the two and forcibly moving the mold (1), and is formed into an endless shape.

The moving device (E) has a carrier (el) attached to a chain (el) wrapped around a forward/reverse rotary motor, and the mold (1) can be moved forward using this carrier (ez).

The gel coat application area <A) is the molding surface (
Gel coat resin B (10°) for the surface of the molded product.
The resin coating machine (a) is electrically linked to the moving position (E) to automatically apply the resin as the mold (1) moves. .

The resin applicator (a) has a mounting base (al) that has a front gate shape.
, a spray gun support (as) which is movable up and down using the rotational force of a first variable motor (al) fixed to the upper surface of the mount (al), and the support (as).
a spray gun (a4) that reciprocates and applies gel coat resin onto the molding surface (1°) using
It consists of

The spray gun support (as) includes first sprockets (at-2) (at-2) at both ends of a transmission shaft (at-1) horizontally installed across the front surface of the mounting base (al). , a chain (ax-7) wrapped around the second sprocket (a34) fixed to the lower ends of both legs of the mounting base (al);
With both ends supported in a suspension shape, the first motor
The rotational force of al) is transmitted to the transmission shaft (at-1), and the rotational force allows vertical movement in parallel to the molding surface (1').

In addition, the spray gun support (as) is constructed by winding a chain (ax-5) across the third sprockets (as-4) (as-4) attached to both ends of the front surface of the spray gun support (as). The rotating shaft (a) of the second variable motor (AS-6) fixed to
Spray gun (A4) attached to chain (AS-5) by transmitting rotational force of S-8) to its chain (AS-5)
) can be reciprocated left and right.

The spray gun (a4) has a vertical groove (a4) that guides the guide bottle (a4-1) that protrudes from the chain (as-5).
-2) with block (a4-3) and its block (
a<-3), and a nozzle part (a4-4) fixed to the support body (a
s) Move back and forth on the surface.

The optical sensor (as) is disposed on the inner surface of the tip of the sensor mounting piece (as-1) (as-1) hanging from both ends of the support (as), and is attached to the molding surface (1) of the advancing mold (1). ′)
When the light projection is blocked at a portion corresponding to the tip of the plane (1C), the first variable motor (al) and the second variable motor (ax-6) are actuated.

To explain the action of the gel coat application part (A), the mold (1) passes under the support mount (at) and then moves backwards by the action of the moving device (E) to the plane ( 1C) When the light emitted from the optical sensor (as) is cut off at the tip of the spray gun support (as), the first variable motor (al) rotates at a constant rate to move the spray gun support (as) downward;
The nozzle part (a4-4) is placed on the plane (1) of the molding surface (1').
C). At this time, the second variable motor (as
-6> is started and the gel coat resin is applied to the flat surface (1C) and the hanging surface (1b) while reciprocating the nozzle part (a4-4). Next, the first variable motor (al) rotates in reverse to move the nozzle part (a4-4) to the upper surface (1a) of the molding surface (1).
close to u. And the second variable motor (az-6>
operates again and applies the gel coat resin while reciprocating the nozzle part (a<-4) and coats the top surface (1a) with gel coat 5.
(100) is molded.

The front side resin molding part (B) includes a glass supply part (b+), F
The RP resin supply section (bl) and the defoaming section (b3) are configured to be electrically interlocked.

The glass supply section (bl) has the function of supplying various glass fibers for forming the next layer on the gel coat 1ll (100) of the mold (1), and the FRP resin supply section (bl)
) has the function of supplying resin for FRP molding onto the glass fiber, and the defoaming part (b3) has the function of supplying resin for FRP molding onto the glass fiber.
It has the function of removing air bubbles that get mixed in with the P molding resin.

The glass supply unit (bl) supplies a roll of glass mat (b+
-1), Roving cloth O-ru(t)+-1>,
A support stand (b+-2>) that rotatably supports a roll of glass fiber to be supplied to the next layer of the gel coat layer, such as a roll (b+-1) of surface mat, and each of its rollers (
b+ -1) (b+ -1) (b+-1) Guide rollers (
b+-3>, and a cutter mechanism (b+-4) that automatically cuts the mat or cloth when it is supplied onto the molding surface (1') of the mold (1).

Each roll (b + -1) (b + -IHb +-1
>... is a support stand (b+-2>) assembled into a front gate shape, and placed horizontally above the mold (1) moving between its legs (b+-2') (b+-2'). Build.

The guide roller (t) + - 3) guides the mat and cloth so that when the mat and cloth are fed to the molding surface (1'') of the mold (1), the mat and cloth are quickly fed. It is for.

The cutter mechanism (t)+-4) is operated by a moving device (E) when mats and cloths are supplied to the entire surface of the molding surface (1') of the mold (1) that moves through the moving device (E). The actual mechanism is a motor (14
) A cutter mount (16) is attached to a chain (15) linked to the chain (15), and reciprocates following the rotation of the chain (15) to automatically cut the mats and cloths.

The FRP131 resin supply section (bl) is equipped with a wood 11 coater (a) similar to the gel coat coater (A) downstream of the glass supply section (bl), and the light emitted from the optical sensor (az) is When the molding surface (1') of the molding die (1) is blocked by a portion corresponding to the tip of the plane (1C), the FRP molding resin is applied to the glass by the same action as the gel coat application part (A). The mat is supplied onto the molding surface (1') by the supply section (bl).

Apply on cloth.

The defoaming section (b3) includes an i defoaming device ff1(t)z-1) and a lateral defoaming device fi on the downstream side of the FRP resin supply section (bl).
(b3-2) are sequentially deployed and configured.

llll82 foam ra (t)3-1) Ha, many t [I
(7) The cylinder rod (6') inserted through the roller mounting plate (5) that supports the I11 rollers (4)
) through a suspension support rod (7), and the suspension support rod (7) equipped with an air cylinder (6) is extended in the same direction as the moving direction of the mold (1). It is supported by the slide guide (8') in the machine frame (8), and the mold (
The rodless cylinder (9) is installed in the machine frame (8) so as to face in the same direction as the moving direction of the air cylinder (1), and the other suspension support rod (7) is connected to the rodless cylinder (9). 6
), the vertical defoaming roller (4) is in a floating state,
Following the movement of the mold (1), it descends to the molding surface (1゛)
The rodless cylinder (9) comes into contact with the top and reciprocates in the vertical direction, that is, in the same direction as the moving direction, by the reciprocating motion of the rodless cylinder (9), thereby defoaming air bubbles.

The horizontal defoaming device (bx-2) is used for forming the pool floor.
Two rows of two horizontal defoaming rollers (10) at an interval of about half the width of the panel, that is, two rows of one roller in total, make one set, and two sets of these are connected to the suspension support plate (11). A slide guide (12) in a machine frame (12) with a suspension support plate (11) extending in a direction perpendicular to the moving direction of the mold (1)
), and the suspension support plate (11) is connected to a rodless cylinder (9) installed in the machine frame (12) so as to be perpendicular to the moving direction of the mold (1). , horizontal defoaming roller (10) on the suspension support plate (11)
The air cylinder (13) is installed so that it communicates with the rodless cylinder (9). ), the hanging support plate (11
) reciprocates, one side (one set) of lateral defoaming rollers (
10) is lowered by the action of the air cylinder (13) and defoamed while remaining in contact with the molding surface (1) to a position slightly over half the width of the molding surface (1'). At this time, the other pair of lateral defoaming rollers (10) is in a floating state, and one of the lateral defoaming rollers (10) has reached a position slightly over half the width of the molding surface (1'). Beside it 11A foam roller (1
0) rises (levitation) and at the same time descends due to the action of the air cylinder (13), leaving the molding surface (1') of the other half.
While still in contact with the top, defoaming is performed to a position slightly over half the width of the molding surface (1゛), and this operation is repeated.

To explain the function of the front side resin molding part (B), first, in order to apply the FRP molding resin onto the gel coat layer, the mold (1) is moved to the glass supply part by the movement device (E). (b+) and downstream FRP resin supply section (bl)
Move with constant speed and speed. At this time, the optical sensor (
The light emitted from (as) (as) enters the mold (1),
When the spray gun support body (B3) moves downward and the nozzle part (a
+-4> is brought close to the plane (1C) of the molding surface (1').

Next, the spray gun (B4) moves back and forth to spray the flat surface (1C).
And apply FRP molding resin to the hanging surface (1b) part. Next, the nozzle part (B4-4) floats up and the molding surface (1')
The resin for FRP molding is applied by reciprocating in a state close to the upper surface (1a) of. The mold (1) further advances and the defoaming section (
After passing through the mold (1), the mold (1) moves backward by the operation of the moving device [(E) and returns to the position of the glass supply part (bl).

In this state, manually rewind the desired mat or cloth.
Touch the tips of mats and cloths to the flat surface (1C) and hanging surface (1b) of the molding surface (1°) coated with resin, and turn on the switch of the electrically linked control section (not shown). do. Then, the mold (1) automatically advances, and when the glass fiber is supplied to the entire molding surface (1'), the cutter mechanism (BL-4) automatically reciprocates to remove the glass fiber (
Cut mats, cloths). The mold (1) further advances, and the FRP molding resin is applied onto the supplied glass fibers at the FRP resin supply section (bl). As the mold (1) advances, the vertical WA foaming device (bz-1) moves back and forth and the horizontal defoaming device (bz-2> moves back and forth to the left and right, respectively, to defoaming the mixed air bubbles. Horizontal defoaming device (bz-2)
When the defoaming on the molding surface (1') at the end is completed,
The defoaming section (bz) stops and the mold (1) moves backward to the original glass supply section (b+).

Then, this glass supply, FRP resin supply, and 11R bubble process were repeated several times (for 51 sheets of mats and cloths) to reach a urethane pressure of 1 m (C).

In addition, the reciprocating movement of the mold (1) in the front side resin molding section (8), the operation and stopping of the FRP resin supply section (bl), and the operation of the vertical 1B2 foaming device (bz-1) in the defoaming section (bz). , stop, and operate and stop the horizontal defoaming device (t) 3-2), which are installed on the rail (1C) and on the mask of the mold (1), respectively.
1) It is automatically controlled by a number of limit switches (not shown) that come into contact as the process progresses.

The urethane crimping part (C) is arranged downstream of the front resin molding part (B), and includes a pressing plate (C+) which divides the area corresponding to the molding surface (1') of the mold (1) into a large number of parts. Connect the air cylinder (17) to the molding surface (1°)
A unit plate (18) made of foamed urethane, etc., which has the same area as the suppression plate (C+) and has a large number of resin injection holes, is placed on the molding surface (1') after defoaming. artificially!
After the FRP molding resin is placed, it is pressed from above with an air cylinder (11) at a time lag as shown in the figure, and the pressed state is maintained for 40 to 50 minutes until the FRP molding resin solidifies.

The mold (1) is moved from the defoaming section (bz) to the urethane pressure bonding section (C) by manually pushing it on the molding line (2).

The actual resin molding part (D) is similar to the front resin molding part <8), and is composed of a glass supply part (bl), an FRP resin supply part (b2), and a ll52 bubble part (b3) arranged in this order. However, like the front resin molded part (B), control is performed by a large number of limit switches (not shown).

Then, the FRP molded body (F) with the back side resin layer molded in the back side resin molded part (D>) is molded after curing to obtain a molded product.

In addition, on the molding line (2), the gel coat application area (A
>, upstream of the front side resin molded part (B), and downstream of the back side resin molded part (D).

By the way, since the molding line (2) is endless,
At the desired location, for example at a point on the track, a switching device is used, or a device such as a traverser is used.

〔Effect of the invention〕

As described above, the present invention allows a mold to be moved on an endless molding line. At the same time, gel coat application part 0 front side resin molding part, urethane crimping part, 1! The side resin molding parts are sequentially arranged, and the mold is moved on the molding line, and the FRP is placed on the mold by the action of each part.
Now that the molded object has been molded, the FRP molded object is molded onto the mold by the action of each gel coat application section 1 front resin molding section, urethane crimping section, and back resin molding section while moving the mold on the endless molding line. As a result, productivity can be improved and molded products of uniform quality can be obtained.

Therefore, the intended purpose can be achieved.

[Brief explanation of drawings]

The drawings show an embodiment of the method of the present invention, FIG. 1 is a schematic process diagram of the method, FIG. 2 is a side sectional view of the curing chamber, and FIG.
3)-(3) Cross-sectional view, Figure 4 is a side sectional view of the gel coat resin application part, Figure 5 is a front view of the gel coat resin I11 application part, and Figure 6 is the gel coat resin applied to the top surface of the mold. FIG. 7 is a side sectional view of the glass supply section in the front resin molding section, FIG. 8 is a front view,
Fig. 9 is a 1° side sectional view showing the cutter mechanism in operation in the glass supply section, Fig. 10 is a front view of the same, Fig. 11 is a side sectional view of the FRP resin supply section and defoaming section, and Fig. 12 is a side sectional view of the cutter mechanism in operation. Figure 13 is a front view of the vertical defoaming device, Figure 13 is a front view of the horizontal defoaming device, Figure 14 is a side view of the urethane crimping section showing the state before crimping, and Figure 15 is the same side view showing the pressure @ FIG. 16 is a sectional view taken along line (17)-(17). In the figure, (2): Molding line, (A) Nigel coat application area, (B): Front side resin molding area, (C): Urethane crimping area, (D): Back side resin molding area, (1): mold

Claims (1)

[Claims] A mold is movably placed on an endless molding line, and a gel coat application section is provided on the line. A front side resin molding part, a urethane crimping part, and a back side resin molding part are sequentially arranged, and the mold is moved on the molding line, and an FRP molded body is molded on the mold by the action of each part. A method for manufacturing FRP molded products that is demolded after demolding.