Nozzle valve for in-the-mold coating apparatus

[Detailed Description of the Invention]

The present invention relates to the covering device in a model, and a method, and is the Showa 53 patent application No. (American serial number No. 814502) 65862, It is the invention relevant to the Showa 54 patent application No. (American serial number No. 897980) 2307 and American serial number No. 944093. It includes that the coating method in a model first fabricates the basic part of the article in the cavity (blank) of a pair of die part material of the Di fabrication Set which can be moved relatively. It is made to harden the basic part of an article and it is ejected by the surface on which outer skin formation covering material should be improved after that. Outer skin formation covering material is substantially distributed over the surface of a basic portion uniformly, and pressure is put on die part material so that it may be substantially filled up with the porous and arbitrary contraction portions on the surface by it. Prior art, American JP,4076780,B;4076788;, No. 4082426, and Robert who are altogether transferred to general Moders Editorial of the title called Venice (RObertOngena) work "dynamics over forming covering of compression molding reinforced plastic parts" (The technical meeting in the 1978 The 33rd fiscal year per year, strengthening plastics / compound material in stay chewed; the society Of the plus Chicks industry, parrot Powered, 14B51~7 pages of sections) And William It is best stated to 54~56 pages of the modern plastic June, 1976 items by a dot (WilliamTOdd). The device indicated in the prior art consists of a pair of die part material which can move relatively, and one of them can move to the direction of others by oil pressure Lamb. In order to close die part material and to mold an article by a desired outside, a cavity is formed between die part material. As for one of the die part material, it is the feature and intermediary To have that the room made to suit so that the quantity by which the liquefied covering material of the form of the thermosetting resin used later in order to connect with a cavity and to cover the 1 surface of the fabricated article was measured may be received is formed into it. liquefied covering material -- the inside of a cavity from the room -- and the room is provided with the piston on which it can be slid or plan Shear moved with a suitable operation machine so that it may move on the 1 surface of the fabricated article, without requiring that die part material is opened. although room The day of the covering material is carried out by the catapult device which has a body part, the end of a body part adjoins the room and the position is defined -- nozzle formation is carried out. It is formed into the related die part material, it moves alternatively with the entrance connecting with the room, and a nozzle is ON To get out to a sealing engagement state. When the basic part of the article is first fabricated in the cavity, the height as a metallic mold cavity with same piston in the room is adjoined, and the position is defined so that both the room and an entrance may be closed from connection with a cavity. The back piston hardened, so that it was enough for the basic part of an article to hold the form is moved to the 2nd position with an operation machine, and exposes to a cavity the capacity the room was beforehand decided to be. An ejection device is simultaneously moved to an entrance, and fluid covering material is supplied to the room, while the oil pressure on Lamb is canceled. After the nozzle of a catapult can provide a position in an entrance and covering material is ejected by the room, a piston is moved to the direction of a cavity with an operation machine so that covering material may be pushed aside on the surface which should be covered under pressurization. Lamb of a compressor operates again, and moves die part material to mutual one, pressure is put on covering material, and in order to set up to allow enough opening of die part material, and extraction of the covered molded product article, sufficient time pressure and temperature are maintained to covering material. Metallic mold Di of a prior art is maintained by parallel arrangement in the oil pressure cylinder attached on the compressor board of the bottom forced up to the top plate. A cylinder separates Di for ejection again. Lamb of 1500-pound A tax pushes a top plate below, and it produces as a result two water pressure machines which operate mutually. Although the device of a prior art is serious development in this art, it is very complicated and the Noodle nozzle, i.e., the thing [ like ] which a nozzle draws after ejecting a reservoir first and filling (the content of the reservoir to the next is ejected in a metallic mold), is included in the toggle device which comes to contact a metallic mold. The present invention makes unnecessary the leveling (formation of Uniformity exhibition) device by the discharge system of the fluid of the above toggle mechanisms, a reservoir, and a reservoir, and the oil pressure of a prior art. The present invention contains the catapult nozzle with a water-cooled valve everlastingly attached on hot die part material. A catapult nozzle carries out ejection directly into a metallic mold cavity. a flow -- oh, rot -- it is ejected in parallel with a It was machine body surface. oh, rot -- Di who forms a It was side -- therefore, it has a coarse field. It is not necessary to carry out business of the mechanical assistance device in mobile upper part Di's living in assisting the climbing power started with the oil pressure operation oil used in order to open a metallic mold. It is used in order that conventional end Plock may maintain Di to parallel arrangement. A suitable regulator does not need to be used in order to make it synchronize with the rate of the flow to the cavity of opening a metallic mold moreover or covering material. While carrying out the present invention, law is indicated in details below with reference to drawings. With reference to drawings, a conventional oil pressure compressor (with no illustration) holds a pair of die part material 2 and 4 which can move relatively, Although the thing of the lower part of [ which is identified with reference number 4 ] them is firmly fixed to a base, on the other hand, upper die part material 2 is being fixed to the tabular member which can move perpendicularly by double-acting oil pressure Lamb attached on the attachment component. Although oil pressure Lamb does the duty which raises upper die part material 2 relatively to downward die part material 4 and is not illustrated, it is shown to him to upper die part material 2 between such movements by a suitable guidance member. Upper die part material 2 can take the sealing position taken down as shown in an open ascending position or Drawing 1 by operating oil pressure Lamb in this way. When die part material 2 and 4 is closed, these form the cavity for fabricating a plastic article by desired arrangement on the basis of heat and pressure. Die part material 2 has incorporated the parts and ingredient which are indicated as for the following which gives covering on the 1 surface of the fabricated article out of [ instead of the length which is useful for die part material 2 and 4 to fabricate a plastic article so that it may be seen in Drawing 1 ] it. Covering is a form of the liquefied coat formation thermosetting resin ejected to the surface covered. In order to give the surface which should have liquefied thermosetting resin covering material improved, it is designed so that die part material 2 may contain ejection nozzle 6 with a valve, and intermediary formation of the die part material 2 is carried out about the point of t This also in dent 8 of the cylindrical shape which carries out for Arrangement horizontally to which catapult nozzle 6 with a valve is attached everlastingly. turning to one end or the other end of oil pressure cylinder 14 the pressurized fluid in which pin 10 of the valve is connected with the operation machine in the form of double-acting oil pressure piston 12 which can move in cylinder 14 -- piston 12 -- bumper 1 made of cloth -- 16 and bumper 1 made of cloth -- it can move between 18. bumper 1 made of cloth of piston 12 -- movement to 18 opens valve 20 of a catapult. in the open position -- thermosetting resin -- material entrance 24, barrel 26 made from stainless steel, and open valve 20 -- a connoisseur -- it flows into intermediary metallic mold blank 28. Ejection device 6 is supported by die part material 2 of the lower one, and this carries out the duty which attaches an ejection device to die part material 2 of the lower one firmly by end 32 of a nozzle where the screw was turned off including dent 8 of the cylindrical shape which has portion 30 of the end where the screw is turned off so that it may be seen in Drawing 1. Sleeve member 34 of the method of outside is an end of the left hand so that it may be seen in Drawing 1, it is fixed to barrel 26 of a long and slender inner side by flange 34, and sleeve member 34 of the method of outside is attached to barrel 26 with catapult nozzle assembly object 36 at the end of the right hand. The surface around the a part of inner direction of sleeve member 34 forms the passage for circumferential intermediary guided by and the cooling fluid which ranks next and is discharged at exit 40 for barrel 26 from entrance 38 with the way surface outside barrel 26. A position can be defined so that Teflon Baffle 42 may turn Flow of cooling water all over a cooling channel in cooling room 43 of catapult nozzle assembly object 36. It permits that Baffle 42 of Teflon has flat surfaces 44 and 45 so that it may be seen in Drawing 2, water flows between method sleeve member 34 of outside, and Teflon Baffle 42, and these go into nozzle assembly object 36 of a catapult. This barrel 26 suits hole 46. Turning cooling of water to nozzle assembly object 36 of a catapult keeps it warm enough to such an extent that the shortage of hardening of resin in the zone is not caused without cooling the portion of the metallic mold to which it is attached, although it is so cold enough that the resin ejected with a nozzle in a catapult nozzle assembly object is not stiffened. The nozzle with a valve is opened and closed by 100Psi (689KPa) air or the operation fluid of 1000Psi (6894KPa), When operation fluid (including air) is turned to the room by the left-hand side of piston member 12 through mouth 48 in central flange 35, it carries out as [ eject / resin / pin 10 is moved to the right direction and / in a metallic mold ]. In contrast, when operation fluid is turned to the room by the right-hand side of piston member 12 through mouth 50 in end flange 52, pin 10 of an ejection device moves to the direction of the left, and closes a valve by 20, and pin 10 completes the smooth surface on the inside of Di 2. Since air removes a risk of polluting catapult resin with operation fluid, it is desirable fluid. Since catapult resin is maintained by 1000Psi (6894KPa), arbitrary disclosure is not the contraries of Tottering by resin to the air room. covering resin in a model is supplied into a catapult with a valve at resin entrance 24 -- a resin entrance -- the thermosetting resin system of one ingredient or two ingredients -- Supplementary -- pass a lead pipe (with no illustration) to the source of supply of a pressure supply ingredient -- you are made to suit so that it may be connected Supposing two-ingredient resin is used, although built by Kenics (Kenics), a static mixer [ like ] will carry out the duty which mixes 2 fluid ingredients of a heat hardening resin system, before being introduced through mouth 24. Other known mixers may be used. When pin 10 is moved to the direction of the right, it is in Ming to flow into die part material 4 and to make it go into it, if large enough although a nozzle is opened and the pressure by which pressure is done with a compressor on Di in thermosetting resin covering material is conquered. Di 2 has roughened internal surface 3. This gives the field roughened by the base portion. It leaves the layer which caused separation of horizontal OFF intermediary To flow, resin, and a bulking agent, and was rich in resin in the surface where covering resin in a model was roughened to the base surface. It seems that the layer which was rich in resin helps adhesion. The notch in Di's surface may be a range from about 0.001 rm(s) to 0.01 m. The above-mentioned device operates as following. Upper die part material 2 is made to go up relatively to downward die part material 4 first so that a cavity section may be exposed in downward die part material. The slab (comparatively thick and wide boards, such as a plastic and form) of a sheet forming compound ranks next, and it is placed into the bottom of die part material 4 of the lower part in a cavity in a suitable position. Pin 10 is placed so that Di's 2 inner side surface and the smooth inner side surface may be formed by pressurization of mouth 50. It is made for a metallic mold to become downward die part material 4 and that of a nest type which were pressurized, drove heated upper die part material 2 below, and were fixed and heated, or ~ Rearrange. The slab of a sheet forming compound is made to change under heat and pressure, and it flows so that a base with a metallic mold cavity and a rib may be formed, and it may be filled up with the arbitrary rib formation slots in it, and this is identified in reference number 28 as it is closed by upper die part material 2 on downward die part material. the compacting pressure which occurred by Lamb of the metallic mold is enough to allow separation of upper die part material 2, without base 28 hardening and having a bad influence on a base -- it is maintained on upper die part material 18 until it carries out grade solidification. Metallic mold timer number 1 is set up in 5 minutes so that the first hardening may be completed. Since contraction usually takes place on a rib, the surface sink mark between hardening cycles is formed. the same -- other defects, such as a crack of porosity and a line again, -- with, it may be. [ surface / of a base ] Such a defect in the external surface of base 28 is removed by giving makeup covering to the surface which it is going to improve. According to the present invention, this covering is applied between the final stages of hardening of a base. It is canceled by operation of timer T-2 by which the ram pressure of this intermediary metallic mold is set up in about 1 thru/or 4 seconds for applying covering on upper die part material 2. This opens 14 inches of metallic molds. The pressurized fluid is turned to the left-hand side of piston member 12 through mouth 48, and, on the other hand, you are made to discharge another piston member side through mouth 50. It is used in order that gas Without timer T-3 of a metallic mold may adjust both a motion of pin 10 and metallic mold open time. The covering material in a model is ejected for abbreviation 1 thru/or 15 seconds through material entrance 24. when time specification of T-3 goes out, a compressor returns to the number of A tax defined beforehand -- T1 -- it was carried out as [ harden / by 4 / covering ] at the time of Tone (about 1 thru/or 15 minutes). It moves so that pin 10 may form some inner side metallic mold walls, and is returned to a basis at the same time a compressor gets down. Covering material flows in into a cavity between the time when pin 10 is drawn in. covering material -- the surface of base 28, and parallel -- the method of outside -- Toward -- it moves once, and since a base is firmly compressed by oil pressure to die part material 4 of the direction currently fixed, it prevents a base shifting from die part material. The compressor is made to operate once again again and makes it covering material uniformly distributed to the surface which should be covered after supplying covering material to the field of the lower part of base 28 under pressurization, so that die part material 2 and 4 may be closed. Plock 60 of the end which becomes hollow 62 and a brace acts in a straight line as two Di of the metallic mold under closing. The hollow which becomes a guidance pin and a brace may also be used in relation to end Plock. pressure, temperature, and this invention -- therefore, the model of the covering material which can be used with this device is indicated in detail to the above-mentioned relation place A request. Therefore, please refer to these applications to sufficient understanding of the method of enforcing by the present invention. This X will indicate the specific example which ejects a covering thing using the ejection nozzle which has the pin projected through puncturing in the nozzle. In the closed position, the end face of the pin is making the mere small part on the surface of a metallic mold. A pin is pulled [ in the open position ] from puncturing in a nozzle from a metallic mold in back, and it carries out as [ eject / covering material / in a metallic mold ]. Since the pin is stabilized to rotation, it always forms the wall of a metallic mold, and a smooth field in a closed position. Since the nozzle is water-cooled, it is in I was wrong. temperature with a metallic mold. 0. Generally covering of an average of 0.07 thru/or 0.10rm is enough to give both perfect covering with it being opaque although the preparation weight which gives covering of 5wn length was used, and it is Oh. The usual base portion was averaged, and since it was the thickness of 2.5rfm, typical covering required covering of about 0.03 per Tm of a sheet molding compound (SMC) thru/or 0.05tm used. it was often formed by high-pressure ejection with arrangement of easy covering thing preparation -- single -- it accumulated or A piece gave perfect covering. Covering with satisfactory tool temperature from 140 to 160degreeC was given. Although at least 10 thru/or the cure time for 30 seconds were used by 150 degreeC, the late rate was often needed by preventing too early gelling which produces imperfect covering formation. As expected, the steep slope of higher compacting pressure kept being lower, and it gave better covering formation of the slope side. However, it is suitable again for the typical pressure taken to fabricate a base SMC portion to give perfect covering generally, and Oh. The main target of covering in a metallic mold fills an opening, and carries out the duty as a substitute of the first coating filler which reduces a surface sink and is ordinarily used by the custom molder of SMC today. The covering section article in a metallic mold was passed to the examination of the car usually used. If all the parts and percentage do not have specification in others in the following example like other parts in a specification and a claim, it will be based on weight. Example 1 The panel of lattice puncturing of the Orzu mobile (01dsm0bi1e) in the 1973 fiscal year is standard loam. And The sheet molding compound based on Haas's polyester was fabricated using the pressure of Use 68.95KPa (1000Psi). Engineering which has the used compressor to Pennsylvania Eli 1 (Erie) -- therefore, it was built leafless. the compressor built by various manufacturers -- mostly -- an automatic degassing regulator -- or [ with, / that it is ] -- or it was added. In order that the automatic degassing cycle of a compressor might cover opening a metallic mold in order to eject an order required to fabricate parts and fabrication covering in a model, and an article, it was made to act so that it may adjust being re-closed down to suitable pressure. The article was fabricated and appearance was excellent. These had all the experimental experiments examined, and it passed them. Depending on the case, since covering was very thick, it did not experiment in crossing Hatchi adhesion. A thickness of 2.2 m of an one-ingredient type inner covering thing is Oh. It is as follows and a molding order is Oh. In the compressor, four timers were used altogether. No. 1 of a timer (T-1) is a preliminary hardening timer, and it was set to fabricating and hardening parts at the 2-? part. carrying out the flow of oil at the time of Tone, in order that a compressor may separate from is determined tonnage beforehand and T-2 may return Lamb, when cure time passes -- t et al. (it sets up in a 1 1 second) -- this opens a metallic mold 13 wn. The covering material in a model ranked next and it was ejected in the metallic mold by the timer on the catapult which is T-3 timer. This was set as 13 seconds in this case. When the timing of T-3 went out, the compressor returned below, became is determined tonnage beforehand, and it was carried out by T-4 (60 seconds) at the time of Tone in order to harden a covering thing. these order of all the very often operates to fabrication and covering of an article -- a compressor -- each time -- the same order was repeated correctly. However, as 3-mm change occasionally produced in T-2 in the direction of either, it is Oh. Since required separating power teaches with preparation weight, can be changed with the change in arrangement and changed again when shearing force opens widely also in this part, he can understand this. It is different intermediary There was for preliminary hardening pressure and hardening pressure hiding the surface sink on a rib with a boss in this situation. Metallic mold hardening pressure was made to decrease per zone of the front end (per front end zone 100 A tax) smaller than the tonnage of preliminary hardening by 78740Kf in order that parts might decrease the tendency to be cracked. It is used for other signals from T-3 stopping it, in order that the interface signal from T-2 may operate a catapult. This abolishes the necessity for another timer over a catapult. The metallic mold between ejection ate and sealing was maintained with the end edge. It is ejected in parallel with the separation side ejected through the ejection nozzle which could define the position between the separation sides of a metallic mold, and was cooled, and the following covering constituent in a model is Oh. the used covering constituent -- the next prescription -- with, it was. The next is the processing parameter and test result of an example. The article is evaluated in actual handling and use. Failure has not been reported. The intermediary example which attaches a Use examination section article for a two ingredients of example type inner covering constituent is Repetitive food Was done. Prescription is generally indicated to American JP,4081578,B. The proportionality pump was used. a pump -- two big cylinders -- with, it was. The piston in each cylinder was driven by the common drive so that each piston might move correctly in the same distance. One cylinder contained the reaction ingredient of others [ cylinder / hidden another ] for one reaction ingredient. The distance of two cylinders is Oh above enough to covering in [ 1 time of ] a model. It was mixed in the static mixer (Kineticus mixer 1), and what came out of two cylinders was ejected in the Use metallic mold in the catapult nozzle with present invention 0 valve. The cure time over covering in a model is 1 minute, and is Oh. the same procedure as the procedure indicated in Example 1 except the above-mentioned difference -- To obey t et al. -- a desirable metallic mold -- chromium or the cavity by which nickel plating was carried out -- with, it was. As for the inside of a metallic mold, it is preferred to be carried out by a collision or sand Plast of a glass grain before chromium Metsuki in a rough side. The roughened field gave the phase which produced resin of covering in a model, and separation of the bulking agent, and was rich in resin by the interface between a base and covering in a model. Both a catapult and a proportionality pump are 49202 Michigan Shakerson. The waist of (JacksOn) Michigan Thomkins Jyonson of avenue (WestMichiganAvenue) 2425 It can obtain from a company (TOmpkins-JOhn-SOnCO.). Various change and change do in this structure, without deviating from the soul of the present invention. The artificer has intention of Or X Change and change, and they do not desire to be limited except being based on an attached claim.

[Brief Description of the Drawings]

Drawing 1 is a sectional view of the portion of the metallic mold which has the ejection nozzle with a valve attached into Di who can dissociate. the --A [ 1 ] figure is a sectional view of the portion of an ejection nozzle with a valve. Drawing 2 is a figure of Teflon Baffle used in the ejection nozzle of Drawing 1. Drawing 3 is a figure of Di who shows pillow Plock. Drawing 4 -- oh, rot -- it is a bottom view of Di of the direction separated who shows the It was side. 2 ...... Die part material (it is separable), 3 ...... The internal surface, 4 which were roughened ...... Die part material (fixation), 6 ...... A catapult nozzle, 8 ...... The dent of a cylindrical shape, 10 ...... The pin of a valve, 12 ...... A double-acting oil pressure piston, 14 ...... Cylinder 16 ...... Bumpers 1 and 18 made of cloth ...... Bumper 1 made of cloth 20 ...... The valve of a catapult, 24 ...... A material entrance, 26 ...... The barrel made from stainless steel, 28 ...... A metallic mold cavity, 30 ...... The portion of the end where the screw was turned off, 32 ...... The end of a nozzle, 34 ...... The sleeve member of the method of outside, 35 ...... A flange, 36 ...... A catapult nozzle assembly object, 38 ...... An entrance, 40 ...... An exit, 42 ...... A Baffle Teflon barrel, 43 [ ...... A hole, 48 / ...... A mouth, 50 / ...... A mouth, 52 / ...... A flange, 60 / ...... End Plock, 62 / ...... Hollow. ] ...... A cooling room, 44 ...... The flat surface, 45 ...... The flat surface, 46