JPS6067130A - Method and apparatus for preparing double-wall molded article - Google Patents

Abstract

PURPOSE:To obtain a double-wall molded article whose corner parts are also excellent in strength by a method wherein the shape of a preliminarily-molded spherical parison is changed in accordance with the shapes of male and female forces, the parison is sealed up between the male and female forces, the air pressure inside the parison is adjusted, and then the parison is set. CONSTITUTION:A melted tubular parison P1 injected from an extruding die 10 of an extruder is held from above and below, and air is blown from an air nozzle 60 into the parison P1 to inflate the same in the shape of a sphere. Next, a male force 50 and a female force 40 whose peripheral wall is divided into several peripheral wall members are made to contact with the spherical parison P1, and while the internal pressure of the parison is adjusted, the shape of the parison P1 is changed in accordance with the shapes of the forces 40 and 50. Then, a part of the parison forced out of the forces 40 and 50 being cut away, the air pressure inside the parison P1 is adjusted through a small hole opened, from the male force 50 side, in the parison P1 sealed up in the forces. After the parison P1 is set, an article thus molded is taken out by opening the forces.

Description

[Detailed Description of the Invention] [Vagina Higashibu Nail] The parison injected from the extrusion die of the extrusion mold is confined between the male and female molds, and by the blown F)< Linnwo is extruded and molded, attache case, container, # Especially deep-drawn hollow molded products with a two-walled space such as bath bonds!
It relates to a method for manufacturing and an apparatus for the same.

[Prior art]

In the prior art for manufacturing second-wall molded products on this machine, the bath-state Hakuba Linn is confined within the opposing space of the al&' male mold from the start to the end of the blow molding, especially in the four
In the conical type, the upper and lower ends of the parison first come into contact with the edges of the male and female molds, and the contact area does not move at all to the subsequent bulging ground, and the remaining parison or the four-conical type As the paper part expands and loses 1, the contact area with the 4-contour mold surface increases, and the parts that come into contact with the female mold are restrained from expanding and opening.
Only the parts that are not in contact with the tray type IC are removed,
Since blow molding follows the corners of the male mold, the surface of the inner wall of the female mold, especially the parison located at the corners, is thinner than other parts, resulting in a hollow double cliff wall of uniform thickness. It was not possible to obtain a molded product, and there was a drawback that the corner portions of the molded product were particularly weak. (See Figure 1) [Purpose] The invention of the present application is to make a pre-blown spherical balin into a male and female material in an unrestrained state by dividing the material into pieces, which is a disadvantage of the prior art described in MI. After deforming it according to the mold, the parison is enclosed in a male and female mold IMJ, and the air pressure inside the parison is adjusted to assimilate the parison. The main purpose is to deliver #iL wall molded products.

〔composition〕

In order to form a MIJ recorder IEI target, the manufacturing method of the first invention involves clamping the bath-like sheet metal injected from a die molding machine at the top and bottom, and then inserting the upper and lower clamps. Air is blown into the parison from the # part 4, and the first step is to pre-inflate it into a spherical shape with a surface area equal to y, which is the surface area of the 2m-walled molded product to be manufactured.

(KIc Nil @r2 At the intermediate position between the upper and lower chivalrous positions, first apply the castle-shaped barring from the male side to the glenoid and advance it to a predetermined position, and then exchange this parison in a rigid manner. Along with copying deformation or displacement, the opposite 1
Each valley-shaped ridge from ttu? #Each chest wall member divided at the M position is 1q4-shaped Ka! Approach the parison in the opened state, and attach the paper surface tit to this opposite 11111 membrane so that the arm on the opposite side of the spherical parison mentioned above is destroyed.
A two-piece machine that brings the molded surface of the T material into contact with the inner circumferential wall surfaces of several parapet members.

Next, the parison breaks this internal pressure M L quickly v! Each inner circumferential wall surface of the circumferential wall section is J41. Until it approaches the conical peripheral wall surface, MiJ) M
Place the wall member on the parapet member 1 and the surface member, make it into a female mold shape of 100 mm, and deform or displace it by following the opposite side of the parison to make the parison of the extra ribs. At the same time, insert the space between the parapet members and between the surrounding wall member and the mounting E member with the divided i2e ridgeline cage of the female mold, and
: Yusogatama and Parin's upper and lower arms, spear 6 that erupts from the neck
E process.

Hisashi [4 Akusako type is combined with the length, and the periphery of the s
n'l tJt2 'X Cut the parison that was put out~r
After making 4 small holes in the inner precious membrane of the parison confined in these male and female molds from the above ma111j and feeding the air pressure in the parison through these small holes and solidifying the parison,
Four steps are used to separate the male and female molds from each other and remove the double-walled molded product.

The above is a special model that consists of 1 spear and 4 steps.

2-i1 The manufacturing apparatus of the invention holds the injected molten parin from the extrusion die of an extrusion molding machine between four molds of mutual approach and separation, and forms the parison by the F pressure blown into the parison. In a device that bulges in the same direction with male and female conical internal blood, solidifies it, and molds it into an article with 2m walls on the inside and outside. A pair of clamps are provided above and below to hold the parison so that it can be pre-blown, and the female press mold is divided into several pieces at the ridgeline of the valley mold. Each battlement wall member is supported on the paper surface member with both axes parallel to this ridge line at a position outward from the ridge line with the paper surface member, and these peripheral wall members are Equipped to be swingable between a V-shaped expanded position that tilts toward the member and a position that forms a white edge LIfT stage female mold shape with neighboring wall members and paper surface members at the ridge line. An air supply/discharge nozzle is provided on one side of the jaws of the two pairs of clamps #+J. These nozzles and air ports each have 4 air pressures and 1
4.The inner molded part of the male mold is
Facing the paper part of the female mold, cut the periphery of the rudder mold together with the tip of the part to make a parison. ! 8
The fact that it is movably deployed against En S@ is considered a % detective.

In the arrow, a representative example of the present invention of the mounting device for actually playing the present presentation method party song is described based on the figure. This is a cylindrical parison in a bath-molten state that is injected from the extrusion die 10 of the form, and there are two pairs of clamps 20.6 that clamp the upper and lower ends of P.
υ are provided above and below at intervals outside the approach and separation path of the female and male positions 4L1.50 so as not to hit the spout Po of the parison P when the parison P is deformed. As shown in Fig. 8, there is also a bottom member 41 having a rectangular plane and four battlement members 42. These Jg facing member 41 and battlement wall members 42 are mutually divided at the ridgeline positions 46a and 46b of each valley shape, and can be moved toward and away from each other. Each wall member 42 is pivoted to the paper member 41 by a pin 44 parallel to this step d43a at a position outward from the ridgeline 45a with the bottom member 41, and these wall members 42 are ! !
! :Toko 42 is a pressure or interpressure cylinder device &4 at - location.
By the operation of 5, the 11-character-shaped wave-delivery that was once transmitted to the sex bacteria against the # and ■ members 41, and the surrounding area at the ridge line 468.43b with the comrades of the Shuso Gunba 42 and the paper member. Depends on L
It is equipped with an increased OJM between the position that forms the horizontal shape.

The au princess elephant 50 has a tip cut ξ [sealed MM
In collaboration with 42b, both ffl! 40 and 50 +u+1000cm rectangular river surface periphery 5t to cut off parison Pa
S material (52 units) 51, an inner molded member 52 which is movable with respect to the chest corps receiving deck 51 and is provided opposite to the bottom member 41 of the female elephant shape 4U, and this inner molded member 52. It has a pneumatic or hydraulic cylinder device 56 for moving and displacing the peripheral edge receiving member 51.

An air supply nozzle 60 provided on a pair of clamp jaws 60 of the upper iron of the upper and lower two pairs of clamps 2'0.6o, and #,
An inner molded member 52Vc of the Kaoru type 50 is provided, and both strong types 40
The air lower 0 with the bud hole tool 70a that makes a hole in the parison P trapped between the
are connected to each.

Reference numeral 90 denotes a parison cooling water passage provided in the double-contour type 4Ll, bU.

The above-mentioned nitrogen gas filter 70 may be provided on the previous Ml S feather 51 instead of providing the inner surrounding member 62iC, and the invention of this mounting device is the same. of,
It may be provided on the chest of the extrusion die 1u, that is, on the pair of clamps +jA20 on the upper side.

[For production]

The operation of the present manufacturing apparatus invention configured as in #51 will be explained together with the present f+ manufacturing method.

First, 5 caps of cylindrical balin P in a bath-molten state is placed in the extrusion die 1 of the extrusion molding machine for the 2J@wall nitride molded product to be manufactured.
Shun, who ejected from zero, immediately held this parison P at the upper and lower ends of the pair of clamps 20. ．． 50, air is blown into the parison 772 yen from the air supply nozzle 60 provided on the lower pair of clamps @ 50, and the parison P is pre-blown into a spherical shape. Let the total surface area of the two-wall molded article I to be manufactured be the same as the total surface area L&I.

Meanwhile, at the intermediate position between the two upper and lower clamping positions held by the pair of clamping members 2LI, 50, 1lJnt
Bring the left and right male and female molds 4Ll and 5LI close to each other with business luck, and from the male mosquito type 4u treasure body request method, 8iJ eye self-contained shape palin Px
At 111111, the top surface b2a of the inner molded member 52 is whitened, and the -+J marked inner molded member 52 in the center is made the same as the paper surface member 41 of the female mold 4υ by operating a pneumatic or hydraulic cylinder 560. , move forward toward the Zhoutan receiving side 51,
A peripheral wall member 42 of 4-karat gold m40 is formed by deforming and drawing a thin film of the parison Ps, that is, the inwardly thinning opening surface of the molded product, following the male elephant pattern surface, and developing the 4-karat gold m40 incline toward the outer mass in a V-shape. With the sheet member 41, bring the 4-shaped 4υ closer to the parison P1 on the opposite side so as to embrace the side opposite to the outer ILLS of the parison Px, and open the opposite 1111 of the parison Px.
Outside the JXIIJ molded product 1IIJ round surface enclosing 8d The molded surface 41a of the paper surface member 41 and the valley inner peripheral wall surface 42a of the circumference part @42 of several pieces, four in the case of illustration. .

At this time, the above was heated to 11 iJ by the operation of the pneumatic ceramic filter 8o.
I followed the full Qicho Wandering Nozzle 6oze and abused the metal Qi inside the Palin Pl, and the male elephant type haQHod was inside the Balinn? +41
In order to prevent the damage of the parison P1 due to the internal pressure of the parison Pl during the U process, the total A pressure in the parison P1 is adjusted to the pressure suitable for the U process. . f
When the female mold 4u is brought into contact with the opposite thin film of the barin P5, the V-shaped peripheral wall member 42, which has been developed into an apocryphal form, is brought into contact with the cylindrical mold 4u. Also, even if IB is connected to the parison on the capital side '41.42 at the same time,
The present manufacturing method invention is the same, and the peripheral wall member 42 only needs to be placed in the parison before the opening member 41.

Trap, each mold 40.50 and two pairs of upper and lower clamps 20.6
The part of the parison located between 0 and 40.50 obediently follows the movement of the gold m40.50 and is displaced or deformed, but does not extend.

In this way, in addition to parison Pl, it contacts 5Lllm and R1
4-karat gold 940 bale ridge peripheral wall member 4
2 to the magnetic shaft 44 by full atmospheric pressure or the operation of the hydraulic cylinder 45.
The peripheral wall surface of the male mold 5o is rocked all at once, centering on
J approach, and the distance between the inner circumferential walls of each circumferential wall member 42 is J4.
1. A gap is provided in the circumferential wall surface of the conical shape 60, and the circumferential wall member 421 in contact with Fk is aligned parallel to the horizontal ridge line 46a.
And, JI! III wall member 42 and bottom surface ttll'41
are brought into contact with the ridges 46b, that is, the peripheral wall member 42 is brought together with the peripheral wall members and the paper surface S material 41, and the female mold shape is in the =r period, and the excess parison is at the P311 grenades 43a, 4, and 5b positions. It is sandwiched between the adjacent peripheral wall member a2+b'' and the peripheral wall member 42 and the paper surface member 41, and the male and female parts 40.6
-s of parison between 0 and parin upper and lower holding position tjit
The PO protrudes once, and as the peripheral wall member 42 moves, the inner peripheral wall surface 42aJC of the wing 42 occasionally moves and deforms, and its movement is not hindered in any way, and R1. The parison, which is deformed by following the mold peripheral wall surface, reacts with the -IJJ gland of '5', and without local expansion by placing the Par foot line, the 1Itll membrane opposite the parison Pl is placed on the d mold surface. It is deformed according to the shape.

At this time, in order to prevent the parison i'1 from rupturing due to the increase in the total air pressure inside the parison h'l which is sweating due to the deformation process of the opposite 1+11+ glands of the parin P5, the parison i'1 a) is removed from the air constriction nozzle 6U as described elsewhere. i''day's air is exhausted and its internal pressure is evaporated.

The peripheral wall member 4 which closed the sf3rM female funnel shape in this way
Temporary and both molds 40 and bO formed by 2 and paper ■ member 41
J/I: Yoriai and finally completed a narrow sakujo, 4th a! ! 40 f) The tip cut seal #42b of each sJ wall gun 42 that abuts against each other at the ridge line 46a is brought into contact with the cutting edge retaining material 51 of the male mold 5o, and by this contact, the aforementioned gouge is removed. I cut the 'o' on the parison,
Parison P2 is confined within the close-fitting molds 4o and 50.

The male mold 5 is placed in the inner group of this confined parison P2.
Pierce the perforation 70a of the air lower o provided at 0,
The air pressure inside the parison is adjusted by blowing or exhausting air into the parison P1, and the remaining air between the can mold and the parison is removed from the suction hole 71 of the mold, and the parison P2
The parison P2, which is still in a molten state, is solidified by the cooling water that flows through the cold water passage 90 provided in each can mold with 40.5 LIC. At this time, %mJ recorded gland 46
Paris B, who lived at positions a and 43b, also solidifies.

Set each part of the female mold 40 to a pneumatic or hydraulic cylinder iron fit: 4! After being caught in the action of b and expanding to the outside measurement and returning to the V-shaped position, both m4o and 50 are separated from each other without any hesitation, and the inner surface of the male mold 50 is formed in the state where the m opening is completed. The member 52 is moved back and is at least adjacent to the ItJ wall member 4.
A two-wall molded product with a central nitrogen lining B' at a corner corresponding to the edge 4 and the sa position of 2 is removed from the male mold 50 and woven with a Paris weave to form a final molded pot.

After removing the dust pile and -IJ, install two sets of upper and lower clamps 2L.
J, 3Q each a separation f, inner metal 1 JI 140.60 parison with one bite cut out from the periphery) y4Ps, h
Dispense 20.6 Ul from each clamp.

Next, the kanebarin/k was heated from the extrusion die 1o to the h constant m.
Let it eject, F! Repeat the process described above and continuously blow and mold the two-dimensional wax molded product.

The parison P that is injected from the extrusion die 10 can be a single assembled sensin japanese face piece, or by extruding two sheets in parallel and making them into a P-U face piece by extruding them in parallel. As a percent light, it is 1 lee.

[Not effective]

The young fruits of the present % Ming that are distributed and acted upon by htI are as follows.

The parison P that was ejected at the beginning of the meeting in this case
The parison P is inflated in advance into a spherical shape by the pre-yN blowing process 4, with the parison P being held between the upper and lower sides. -ζn 4F P Lee +-
g) Because of the molding process, as the male mold bO advances, the inside of the double wall becomes the inner side of the molded product chest. It is possible to smoothly deform or displace the Ichisho group following the surface of the male mold 5υ and the parison clamping position, and the parison between the male mold 5υ and the parison clamping position also deforms or displaces along with the deformation or displacement. Shis ti
Inner molding of molded products can be performed quickly.

Opposite of parison P, which is the outer surface of Huki molded product name 114
For molding of Group 11, noJ' 8c: male mold 4υ
Each circumferential wall S-shaped barb 42 is rolled out to the outside, and in a state where it is unfolded in a V-shape, the male mold 40 is brought close to the anti-phantom chest group of the parison P,
In order to make this opposite l I 411 gland, this Q foul N gland is separately described.
2, each of the inner circumferential wall surfaces 42a of 2 is brought into contact with the circumferential wall surface of the male mold 5υ by abutting them at the sa ab spacing position, and connecting these circumferential wall members 42 and the circumferential wall portion @41. In order to form a 4-mold shape, and to deform or displace the parison opposite 1i411 membrane by following the female mold shape, when the peripheral wall s wing 42 moves inward from the outer surface, the opposite side of the parison P is formed. The meninges are located on this inner peripheral wall surface 42avc')
Natama~follows the movement of the peripheral wall side 42 and deforms $ movingly,
The opposite membrane of the parison P can be deformed or displaced by following the shape of the female mold without being restricted in any way, and the membrane of the parison P can be deformed or displaced by following the circumferential surface of the male mold 11411%. The upper and lower membranes of the parison P can be deformed in opposing positions with the two sides facing each other.Similar to the molding of the 1141J agricultural machine, there are 6 baskets with 4 axles 1J4U and a ballin upper and lower clamp. When the parison in between is deformed by copying or replacing the parison with the shape of the molding mold, the peripheral wall printing 42 of the 4-ring type 4o obediently follows the displacement. It is possible to confine the parison within the female grip shape 40, 50 in the long process without pulling the pregnant balin/ in the seventh position, without causing partial B'J extension, It is possible to produce a molded product with a uniform thickness of 2 km II.

On the opposite flank of the parison P, which is deformed following the shape of the female mold, the excess part of the parison remains on the punch as burrs between the outer wall parts along the breaking holes 46a of the surrounding wall members, and the part of the parison is Secondly, there are burrs at the corners of the hollow-walled molded product, and the thickness of the corner can be compensated for, making it possible to obtain a molded product with reinforced corners and a deep 22. Wall hollow molded products can be manufactured efficiently at a high temperature of 411 degrees.

Parison rf) Separate Note Before being confined between m40 and m50, the parison P was only held by the upper and lower clamping doves, and moved obediently following the mutual approach movement of the mold 40.5υ, and this parison P The deformation of Rin R, the addition of air pressure JvI in BARIN P is reduced by exhausting the nitrogen gas in BARIN P, and by adjusting the air pressure,
It is possible to prevent the parison P from becoming WB during deformation of the parison P.

In this way, Barin/P is transformed into the circular shape of Yongei type bO1 and female type 4o, and it is an inner relative of Length!
Mold 4 threatens 40 and 50 with Ai-Kanju and leaves them to their surroundings.
Cut off the excess parison P that has been cut out from υ, 5LJ, and insert the parison from the male mold 50 side into the ball ring P2, which is confined within both molds 40 and 50, and which already follows the inward shape of υ. The parison r2 is deformed by blowing air into this parin P2 in order to adjust the air pressure in -P2 of P and make the inner and outer membranes of the parison follow the inner shape of the mold 40.50: #K. The deformation and displacement violet is because the parison P2 has already been deformed in the direction of the molds of both companies in the I Nil process, so there is a slight depression, which requires a large blowing air pressure. IJ4υ, 50
The punch can be extended to the corner of the hole, and a two-imaginary-wall nitride molded product with a Br phase shape can be obtained.

4: 1/4" As for the young fruit of the keratinized clay, it is possible to completely exclude the percentage of the hu-wiring method, and the young fruit of the cut-off produced by the invention of the wire threading method can be pre-planted. In addition, each station's rozutsuki 42 is positioned outward from the ridge line 45b with the ridge line 41, and the axis 44 is parallel to the ridge line 45b.
As mentioned above, it is supported by the swinging mouth, and when it is not in operation, it is expanded outward/in a cylindrical shape.
When the parison P is injected from the extrusion die 10, the conventional peripheral wall non-divided type 6NM→・Product injection f Table k Pour h
The injection process can be carried out without any trouble, and the manufactured molding can be easily taken out, and when moving to the operating position, it can be moved around this axis to the peripheral wall side 42. By swinging the
The bottom member 41, the surrounding wall member 42 for instantaneous coal, and the ridge Ivii4
It contacts the 44 fruit at positions 5 a and 45 b, and clamps the anti-I411 agricultural sosashi part of the parison P at each ridgeline position, and can generate burrs 13 for bikai as necessary @ One clamp The air supply nozzle 60 provided on the jaw 20 (or 6υ) and the I#, with the perforation J47Ua provided on the smoke type 50, are installed in the air lower 0. , Molding of the parison〃During the molding process, the air pressure inside the parison can be precisely adjusted, the rupture of the ring 7 can be prevented, and the circular outer wall is spaced to the next fixed dimension. This jII can be equipped with σ! Since the inward molding member 52 of the mold 50 is movable with respect to the peripheral edge member 51, the parison RX-111111 membrane can be deformed and softened in two stages, making it possible to It is possible to perform deep softening processing on phosphorus 7 without the need for excessive stretching force.

Since the air lower 0 is equipped with a bud hole tool 7υa, pressurized air is supplied to both molds 40 at the same time as the small hole is drilled in the parison P2.
It can be blown into Ballin P2, which is limited to 50 songs.

[Effect of *, m mode]

In the case of the invention of the R processing method, it is impossible to transform the blunt group of parison P1 into two steps like the creation method (parison P can be processed in a simple manner).

[Brief explanation of drawings]

The figures relate to this invention; Figures A and 1 are schematic diagrams illustrating the problem of deformation of the parison during molding of stool rice, and Figures 2 to 16 are schematic diagrams of the parisons that are representative embodiments of the present invention. Of these, figures 2 to 7 are the four figures of the parison's Yoshihanikoki tt blessing, and figure 8 is a four-pronged outline with the page member facing upward. FIG. Explanation of raw symbols in the diagram 4υ... Female mold, 41... River bottom member, 4
2... Peripheral wall member, 50... Heavy metal. Figure 3, 5-article procedural amendment (from @) 1981 1071. - / 7th day cow, 1″ Director-General 1 Mr. Aio Wakasugi 1 Indication of the case 1981 % Pff 1 No. 175707 2 Title of the invention Method for manufacturing a two-stop wall molded product and its manufacturing equipment 3 Make an amendment Relationship with the case %1゛Junto Ide (ii) Mr. 4-11-8 Kamiaoki, Yoguchi City, Saitama Prefecture
Name (Also) Pu2''' Co., Ltd. Representative Sho Hyaku Sugiura 4 Agent 104 Address 2-6-16 Jk Funeral to Spring Chuo-ku, Tokyo
Koda Building: 8:,:,? Sleeve y stop 2 pcs 1 house etc. 'Shun□h4
1. The second line from the bottom of the attached specification pigeon/naka, tusk 16 negative is corrected as follows. - "If you don't touch the parison, you'll be fine."

Claims (1)

[Scope of Claims] 1) A molten cylindrical parison injected from an extrusion molding machine is clamped at the top and bottom, and the liquid is injected into the parison from the upper and lower clamping parts. The surface area of a molded product is approximately 11, which is inflated in advance into a spherical shape that has a surface area equivalent to y. At the intermediate position between the upper and lower halves of the +5iJ mark, first apply the j & type to the 14iJ order shape ballin one-measure group from 11111'yJ and move it back 1'' to the specified position, and move this parison one group to the Ikinjo side. In addition to deforming or ascending the position according to Then approach the parison in a V-shaped R-opened state, and as if holding the opening of the M-shaped ballin, move the bottom mold direction of the castle face wing and several surrounding wall members in the opposite #J direction. Next, while applying this internal pressure to the parison so that the parison does not break, connect each inner peripheral wall surface of the peripheral wall part until each inner peripheral wall surface of the peripheral wall part approaches the virile-shaped Ml wall surface. The members are assembled into the peripheral wall members and the paper surface part to form the desired four-mold shape, and the opposite side group of the parison is deformed or displaced by following the shape of this female mold, and the excess parison is divided into trend shapes. It is sandwiched between the surrounding wall members and the space between the surrounding wall members and the paper surface S, which are instantly combined at the etched edge forest position, and %
M: 4 spouts are ejected between the male and female molds of J and the upper and lower positions of the ballin, 6 strokes. Then, the parison with 1 g of cutting edge was cut by the circumferential edge of the mold, and the inner membrane of the parison, which was confined in the inner layer of the hole, was placed on the mold side in an F5iJ arrangement. A small hole is created, the air pressure in the parison is adjusted through this small hole, and the parison is solidified. Machinery. A method for constructing a two-wall molded product characterized by comprising the above steps 1 to 4. wa) -811 -r舊f711i ni 4 "m l 4 j
When contacting the m i4a IZ I+ 17'/n- side, the top surface of the inner molded member of the male mold is charred once against the parison, and then the inner molded member is further extruded into the female mold, and the balin/ - A method for manufacturing a two-wall molded product of 1JA Kii, which is claimed by %tn, by processing 1I411 in two stages. 6) Extrusion molding The molten parison injected from the extrusion die is held between four releasable metal rings, and the parison is forced into the inner surface of the female mold by the F pressure blown into the parison. In the scissors straight, the material is blown out in one direction, solidified, and formed into an article with two inner and outer walls. Separately, there is a pair of chivalrous jaws on the top and bottom of the burin/preparatory blow-in port for the dust-proximity and separation passages of the two company models. Consisting of 11 parapet groups I and paper-faced members divided by a valley-shaped enclosure, the valley peripheral wall sister members are connected to a connecting axis semi-column with this ridgeline at a position outward from the ridgeline with the 1st member. These peripheral wall members are simultaneously tilted toward the outer axis with respect to the bearing surface members, and abut against the peripheral wall members and the paper surface portion, which are in contact with each other at the ridge line. It is equipped so as to be able to swing between the position where the desired female mold shape is formed, and an air supply nozzle is provided at one end of the two sets of clamps, and the male mold has both firefly-shaped nozzles. There is an air port with a bud hole that punches a hole in the parison, which is trapped in the darkness, and each nozzle and air port are connected to the Air Seishin Ii.
It is connected to the device, and the inward molding member of the male mold faces the four-rod-shaped paper member, and cuts the burr cut out in collaboration with the tip of the peripheral fluorescent material of the male mold. A manufacturing device for a two-Jk wall molded product whose characteristic is that it is disposed in a movable position with respect to a crucible mold MI edge receiving member.