Manufacture and manufacturing device of synthetic resin molded product

[Detailed Description of the Invention]

The object of A6 invention (1) Field of the Invention The present invention relates to the manufacture device used for the manufacturing method of a synthetic resin cast, the method of press-fitting the sheet for fabrication to the die surface of the form block provided with the convex part and the crevice, and manufacturing a cast especially, and operation of the method. (2) PRIOR ART The method of adopting a prestretching means to swell that thick uneven-ization of the cast should be conventionally controlled as a manufacturing method of a synthetic resin cast while extending the sheet for fabrication in advance of the press-fit to a die surface is known (for example, refer to JP,48-40071,B). (3) In Object of the Invention, however the conventional describing [ above ] method, When presenting a complicated aspect as the die surface is provided with the convex part and the crevice though thick uneven-ization of a cast can be controlled by adoption of the above prestretching means since a convex form with a simple die surface of a form block is only made, the result should be satisfied with the above prestretching means of a result cannot be obtained. The present invention hits obtaining a synthetic resin cast from the sheet for fabrication using the form block which has the die surface provided with the convex part and the crevice in view of the above, It aims at providing the above-mentioned manufacturing method and manufacture device which enabled it to control thick uneven-ization of a synthetic resin cast by adopting at least 2 times of prestretching means. Constitution of B9 invention (1) Means for solving problem The process which the manufacturing method of the synthetic resin cast concerning the present invention makes the sheet for fabrication counter the die surface of the form block provided with the convex part and the crevice, and it allocates, The process of prestretching the primary above-mentioned sheet for fabrication so that it may turn to the above-mentioned die surface and may bulge, Primary prestretching is canceled with approach with the above-mentioned sheet for fabrication, and the above-mentioned die surface, The process which the above-mentioned sheet for fabrication is put on it by the above-mentioned convex part, and is prestretched the 2nd order so that it may be pushed in in the above-mentioned crevice, the process of press-fitting the above-mentioned sheet for fabrication to the above-mentioned die surface, and fabricating an intermediate, and the process which stiffens the above-mentioned intermediate are performed one by one. A manufacturing method of the synthetic resin cast concerning the present invention, The process of making the sheet for fabrication countering the die surface of the form block provided with the convex part and the crevice, and allocating it, The process of prestretching the primary above-mentioned sheet for fabrication so that it may turn to the above-mentioned die surface and may bulge, The process prestretched the 2nd order so that primary prestretching may be canceled and it may transform the above-mentioned sheet for fabrication into the section waveform which consists of a convex part which counters the crevice which counters the convex part of the above-mentioned die surface, and the crevice of the above-mentioned die surface, The process of putting the above-mentioned crevice on the convex part of the above-mentioned die surface, and allocating the above-mentioned convex part in the crevice of the above-mentioned die surface, the process of press-fitting the above-mentioned sheet for fabrication to the above-mentioned die surface, and fabricating an intermediate, and the process that stiffens the above-mentioned intermediate are performed one by one. A manufacturing method of the synthetic resin cast concerning the present invention, The process of making the sheet for fabrication countering the die surface of the form block provided with the convex part and the crevice, and allocating it, The process of prestretching the primary above-mentioned sheet for fabrication so that it may turn to the above-mentioned die surface and may bulge, Primary prestretching is canceled with approach with the above-mentioned sheet for fabrication, and the above-mentioned die surface, The process which the above-mentioned sheet for fabrication is put on it by the above-mentioned convex part, and is prestretched the 2nd order so that it may be pushed in in the above-mentioned crevice, The process of prestretching the 3rd above-mentioned sheet for fabrication so that it may estrange from the above-mentioned convex part, the process of press-fitting the sheet for the account fabrication of 3rd prestretching release back to front to the above-mentioned die surface, and fabricating an intermediate, and the process that stiffens the above-mentioned intermediate are performed one by one. The manufacture device of the synthetic resin cast concerning the present invention is a non-molding position where they estrange a prestretching member to the whole surface side of the sheet for fabrication, and estrange a form block from the above-mentioned sheet for fabrication to a side on the other hand again, The above-mentioned form block has a die surface with a convex part and a crevice by allocating, respectively so that the molding position close to the sheet for fabrication may be occupied that the edge of the above-mentioned sheet for fabrication should be fastened, and it is the above-mentioned prestretching member, When the member is in a molding position and the above-mentioned form block is in a non-molding position, When both primary prestretching means which consist of at least 1 side of the movable plug and Compressed air source which turn the above-mentioned sheet for fabrication to the above-mentioned die surface, and bulge it, and the above-mentioned prestretching member and a form block are in a molding position, The above-mentioned sheet for fabrication is put on the convex part of the above-mentioned die surface, and it has secondary prestretching means which consist of a fixed plug pushed in in a crevice, and had the source of air pressure which press-fits the above-mentioned sheet for fabrication after secondary prestretching to the above-mentioned die surface. A manufacture device of the synthetic resin cast concerning the present invention, The non-molding position where they estrange a prestretching member to the whole surface side of the sheet for fabrication, and estrange a form block from the above-mentioned sheet for fabrication to a side on the other hand again, The above-mentioned form block has a die surface with a convex part and a crevice by allocating, respectively so that the molding position close to the sheet for fabrication may be occupied that the edge of the above-mentioned sheet for fabrication should be fastened, and it is the above-mentioned prestretching member, When the member is in a molding position and the above-mentioned form block is in a non-molding position, Primary prestretching means which consist of at least 1 side of the movable plug and Compressed air source which turn the above-mentioned sheet for fabrication to the above-mentioned die surface, and bulge it, It has secondary prestretching means which consist of the source of a vacuum and fixed plug which are made to transform the above-mentioned sheet for fabrication into the section waveform which consists of a convex part which counters the crevice which counters the convex part of the above-mentioned die surface, and the crevice of the above-mentioned die surface, and had the source of air pressure which press-fits the above-mentioned sheet for fabrication after secondary prestretching to the above-mentioned die surface. A manufacture device of the synthetic resin cast concerning the present invention, The non-molding position where they estrange a prestretching member to the whole surface side of the sheet for fabrication, and estrange a form block from the above-mentioned sheet for fabrication to a side on the other hand again, The above-mentioned form block has a die surface with a convex part and a crevice by allocating, respectively so that the molding position close to the sheet for fabrication may be occupied that the edge of the above-mentioned sheet for fabrication should be fastened, and it is the above-mentioned prestretching member, When the member is in a molding position and the above-mentioned form block is in a non-molding position, When both primary prestretching means which consist of at least 1 side of the movable plug and Compressed air source which turn the above-mentioned sheet for fabrication to the above-mentioned die surface, and bulge it, and the above-mentioned prestretching member and a form block are in a molding position, The above-mentioned sheet for fabrication is put on the convex part of the above-mentioned die surface, and it has secondary prestretching means which consist of a fixed plug pushed in in a crevice, The 3rd prestretching means which consists of Compressed air source which makes the above-mentioned form block estrange the above-mentioned sheet for fabrication from the convex part of the above-mentioned die surface was established, and it had the source of air pressure which press-fits the above-mentioned sheet for fabrication after the 3rd prestretching to the above-mentioned die surface. The above-mentioned source of air pressure is at least 1 side of the source of a vacuum, and Compressed air source. (2) Action According to the above-mentioned manufacturing method, it is possible by adopting 2 times or 3 times of prestretching means to manufacture the synthetic resin cast controlled as much as possible in thick uneven-ization. According to the above-mentioned manufacture device, it is possible to enforce the above-mentioned method certainly. (3) EXAMPLE Drawing 1 shows an example of textiles strengthening synthetic resin cast 1, and the cast 1 has main part 2 which forms a box form, and flange 3 provided in the whole opening perimeter edge of the main part 2. The bottom wall 4 central part of main part 2 is equipped with hollow convex part 6 which the tip side projects to the method of outside [ opening / 5 ]. Cast 1 is a layered product and comprises inner side A textiles reinforcing layer 7 and outside surface coat 8. Sheet 9 for fabrication used in order that Drawing 2 may obtain cast 1 is shown, and the sheet 9 for fabrication is, Between top good 1 film 10. and lower visibility film 10, unhardened base material layer 11 located in a top flexibility film 10. side and synthetic resin liquid layer 12 located in a lower flexibility film 10□ side are piled up and provided. In a top, lower flexibility film iontow comprises vinylon, they function as a base material of unhardened base material layer 11 and synthetic resin liquid layer 12, and after fabrication exfoliates from cast 1. Unhardened base material layer 11 comprises a textiles set thing for strengthening, and synthetic resin liquid impregnated with the set thing. Glass fiber is used as textiles for strengthening, and unsaturated-polyester-resin liquid is used as synthetic resin liquid. Synthetic resin liquid layer 12 is hardened at the time of the curing treatment of unhardened base material layer 11, forms surface coat 8 of cast 1, makes unsaturated polyester resin the main ingredients, blends paints, a crosslinking agent, a curing catalyst, etc. with this, and is prepared. Next, the example of manufacture of sheet 9 for fabrication is explained. Product name Borac N-325 Anhydrous silicic acid powder 2-weight section titanium dioxide paints 15 weight sections of 10-weight section styrene (crosslinking agent) was supplied to the gay mixer, and it mixed, and obtained the mixed-solution. Subsequently, t-Butyl pel benzoate (curing catalyst) of 11 weight sections of 2-weight section MgO(s) was added into the 100-weight section mixed-solution, and synthetic resin liquid was prepared into it. This synthetic resin liquid was applied to the lower flexibility film 10. upper surface with a thickness of 50 micrometers which consists of vinylon at thickness 1~2 big building, it ranked next, thickening processing for 40degreeC and one day was performed to the coating layer, and synthetic resin liquid layer 12 was formed. To 100 weight sections of unsaturated polyester resin (the Nippon Shokubai Kagaku Kogyo Co., Ltd. make, Commodity master Pollack G-105), 1 weight section of t-Butyl pel benzoate was added, and the synthetic resin liquid for unhardened substrate Jill was prepared to it. The glass tissue (the Nittobo Co., Ltd. make, brand name C-450A) of three sheets was piled up, and the textiles set thing for strengthening was produced. What impregnated this set thing with the above-mentioned synthetic resin liquid is laminated on the upper surface of synthetic resin liquid layer 12, and 2~3-m-thick unhardened base material layer 11 is formed, Subsequently, with a thickness of 50 micrometers which consists of vinylon top flexibility film 10. was laid on top of the upper surface of the layer 11, defoaming processing was performed to the lamination thing after that, and sheet 9 for fabrication of thickness about 4 big buildings was obtained. the -- the [ 3a~] --e [ 3 ] figure shows an example of the manufacture device used for a manufacturing method of cast 1, and a method for the same. the -- ina [ 3 ] figure, clamping circuit 14 which grasps the edge part of sheet 9 for fabrication is provided in the up-and-down direction intermediate part of support 13 which carries out for relativity. The clamping circuit 14 consists of fixed board 15 of the lower part fixed to support 13, and movable board 17 of the upper part which goes up and down by working cylinder 16. At the whole surface side of sheet 9 for fabrication, and the example of illustration, prestretching member 18 is above sheet 9 for fabrication, As for the other side side of sheet 9 for fabrication, in the example of illustration, form block 19 is allocated under the sheet 9 for fabrication, respectively, and these prestretching member 18 and form block 19 are, The non-molding position estranged from sheet 9 for fabrication and the molding position which approaches the sheet 9 for fabrication that the edge of sheet 9 for fabrication should be fastened via clamping circuit 14 can be occupied. Ill which die surface 20 of form block 19 is established in crevice 21 which turns an opening upward, and the bottom central part of the crevice 21, and the tip side projects upwards rather than the opening of crevice 21! It has 4822. Main part 2 of cast 1 is fabricated by crevice 2I, and hollow convex part 6 is fabricated by convex part 22. Flange 3 is fabricated by clamping circuit 14. Vent 23 carries out an opening to the crevice 21 bottom and convex part 22 crestal plane, and these vents 23 are connected to source vl of a vacuum. Form block 19 can be gone up and down by working cylinder 24, and can go back and forth between the molding position after a rise, and the non-molding positions after descent. Prestretching member 18 has box 25 which places an opening upside down, and movable plug 26 and a plurality of fixed plugs 27 which consist in the circumference are allocated in the box 25. Movable plug 26 is expanded and contracted by working cylinder 28, and the lower end side is opposite to convex part 22 crestal plane of form block 19. The lower end side of each fixed plug 27 is opposite to the crevice 21 bottom. Vent 29 carries out an opening to the ceiling surface of box 25, and the vent 29 is connected to Compressed air source P1. Box 25 can be gone up and down by working cylinder 30, and can go back and forth between the non-molding position after a rise, and the molding positions after descent. When prestretching member 18 is in a molding position and form block 19 is in a non-molding position, movable plug 26 has the function to turn sheet 9 for fabrication to die surface 20, and to bulge it, and corresponds to primary prestretching means. When prestretching member 18 and form block 19 are in a molding position, sheet 9 for fabrication is put on convex part 22 of die surface 20, and each fixed plug 27 has [ both ] a function pushed in in crevice 21, and corresponds to secondary prestretching means. Source of vacuum ■1 and Compressed air source P1 constitute the source of air pressure which press-fits sheet 9 for fabrication to die surface 20. In manufacture of cast 1, each of following processes are carried out one by one. There) the -- as shown ina [ 3 ] figure, raise prestretching member 18, and drop form block 19, and maintain them at a non-molding position. Form block 19 is heated by abbreviated 120-degreeC. Clamping circuit 14 is made to grasp the edge part of sheet 9 for fabrication which located lower flexibility film 10z in the bottom, and the sheet 9 is allocated in the die surface 20 upper part. (11) the -- as shown inb [ 3 ] figure, on sheet 9 for fabrication, make a pair of heaters 31 approach the undersurface, respectively, allocate them, and eliminate back each heater 31 which made 60 degreeC heat and soften the sheet 9 for fabrication from a lower part on sheet 9 for fabrication. (iii) the -- as shown inc [ 3 ] figure, drop prestretching member 18 and maintain at a molding position. In this molding position, the lower end side of box 25 sticks to the movable board 17 upper surface of clamping circuit 14, and the seal of between them is carried out. Movable plug 26 is in an extension state, and sheet 9 for fabrication is bulged by the movable plug 26 towards die surface 20. The sheet 9 whole for fabrication is lengthened by Roughly equal - by this, therefore primary sheet 9 for fabrication is prestretched. (iv) As shown in the 3rdd figure, raise form block 19 and maintain at a molding position. In this molding position, die surface 20 edge part of form block 19 sticks to the fixed board 15 undersurface of clamping circuit 14, and the seal of between them is carried out. It contracts so that movable plug 26 may not hit convex part 22 crestal plane with approach with sheet 9 for fabrication, and die surface 20, and primary prestretching is canceled. If convex part 22 crestal plane of form block 19 passes through the lower end side of each fixed plug 27, sheet 9 for fabrication will be pushed up by convex part 22, and the Oshiage Kicking of sheet 9 for fabrication will be prevented by each fixed plug 27 in the convex part 22 circumference. As a result, sheet 9 for fabrication will be put on convex part 22 by each fixed plug 27, and it will be pushed in in crevice 21, and sheet 9 for fabrication is lengthened by Roughly equal - by this corresponding to convex part 22 and crevice 21, therefore secondary sheet 9 for fabrication is prestretched. (V) the -- as shown ine [ 3 ] figure, both Compressed air#P1 and source of vacuum ■1 are operated, and sheet 9 for fabrication after secondary prestretching is press-fitted to die surface 20, fabricate intermediate 10, subsequently carry out heating hardening of the intermediate 10 in the state of the press-fit, and obtain cast 1. Thus, by adopting 2 times of prestretching means, it is possible to obtain cast l controlled as much as possible in thick uneven-ization. above -- thickness about 411I[-- in cast 1 using sheet 9 for fabrication of 11, the thickness of the Yamagata part 1a is 3~4 Engineering, and the thickness of valley-shaped portion 1b is 4~5 liver, and it turns out that thick equalization is attained. Drawing 4 prestretches primary sheet 9 for fabrication with the pressurization air from Compressed air source P1 instead of movable plug 26, and also shows an example -- the -- it corresponds toC [ 3 ] figure. Even if it uses such a means, the above-mentioned, same effect is acquired. the -- the 5a~5thf figure shows the other examples of the manufacture device used for a manufacturing method of cast 1, and a method for the same. the -- ina [ 5 ] figure, vent 29 of prestretching member 18 is alternatively connected to source of vacuum ■2, and Compressed air source P via change-over valve 32. other structures in a device -- the -- since it is the same as the example ofa [ 3 ] figure, the same numerals are given to an identical configuration portion, and detailed explanation is omitted. In manufacture of cast 1, each of following processes are carried out one by one. (1) * -- the -- as shown ina [ 5 ] figure, raise prestretching member 18, and drop form block 19, and maintain them at a non-molding position. Form block 19 is heated by abbreviated 120-degreeC. Clamping circuit 14 is made to grasp the edge part of sheet 9 for fabrication which located lower flexibility film 10t in the bottom, and the sheet 9 is allocated in the die surface 20 upper part. (ii) the -- as shown inb [ 5 ] figure, on sheet 9 for fabrication, make a pair of heaters 31 approach the undersurface, respectively, allocate them, and eliminate back each heater 31 which made 60 *c heat and soften the sheet 9 for fabrication from a lower part on sheet 9 for fabrication. (ij) the -- as shown inc [ 5 ] figure, drop prestretching member 18 and maintain at a molding position. In this molding position, the lower end side of box 25 sticks to the movable board 17 upper surface of clamping circuit 14, and the seal of between them is carried out. Movable plug 26 is in an extension state, and sheet 9 for fabrication is bulged by the movable plug 26 towards die surface 20. The sheet 9 whole for fabrication is lengthened by Roughly equal - by this, therefore primary sheet 9 for fabrication is prestretched. (iv) As shown in the 5thd figure, shrink movable plug 26, keep the lower end side up rather than the lower end side of each fixed plug 27, and cancel primary prestretching. Source of vacuum of 18 prestretching members ■2 is operated, and the inside of box 25 is decompressed via change-over valve 32. Since sheet 9 for fabrication bulges upwards among both fixed plugs 27 adjacent to each other by this, the sheet 9 for fabrication is, It is lengthened by Roughly equal - so that it may change into the section waveform which consists of downward crevice (crevice) 9a which counters convex part 22 of die surface 20, and downward convex part (convex part) 9b which counters crevice 21 of die surface 20, therefore secondary sheet 9 for fabrication is prestretched. (v) the -- as shown ine [ 5 ] figure, raise form block 19 and maintain at a molding position. In this molding position, die surface 20 edge part of form block 19 sticks to the fixed board 15 undersurface of clamping circuit 14, and the seal of between them is carried out. Downward crevice 9a of sheet 9 for fabrication is put on convex part 22 of die surface 20, and downward convex part 9b is allocated in crevice 21 of die surface 20. (vi) As shown in the 5thf figure, operate Compressed air source P by the side of prestretching member 18, and it supplies pressurization air in box 25 via change-over valve 32, Source of vacuum ■1 by the side of form block 19 is operated, between die surface 2o and sheet 9 for fabrication is decompressed, this press-fits sheet 9 for fabrication to die surface 20, and it fabricates intermediate 10. Heating hardening of the intermediate 10 is carried out in the state of the press-fit, and cast 1 is obtained. It is thickness 41 [ about ] as mentioned above! In cast 1 using sheet 9 for fabrication of III+, the thickness of the Yamagata part 1a is 3 and 5~4 mm, and the thickness of valley-shaped portion 1b is 4'~4.5 snipe, and it turns out that thick equalization is attained. the -- the 6a~6thf figure shows the other sides of the manufacture device used for a manufacturing method of cast 1, and a method for the same. the -- ina [ 6 ] figure, vent 23 of form block 19 is alternatively connected to source of vacuum ■1, and Compressed air source P2 via change-over valve 33. other structures in a device -- the -- since it is the same as the example ofa [ 3 ] figure, the same numerals are given to an identical configuration portion, and detailed explanation is omitted. In manufacture of cast 1, each of following processes are carried out one by one. (i) the -- as shown ina [ 6 ] figure, raise prestretching member 18, and drop form block 19, and maintain them at a non-molding position. Form block 19 is heated by abbreviated 120''C. Clamping circuit 14 is made to grasp the edge part of sheet 9 for fabrication which located lower flexibility film IO□ in the bottom, and the sheet 9 is allocated in the die surface 20 upper part. (11) the -- as shown inb [ 6 ] figure, make a pair of heaters 31 approach sheet 9 top for fabrication, and the undersurface, respectively, allocate, and eliminate back each heater [ make ] 31 which heats the sheet 9 for fabrication to 6o''C, and it softens from a lower part on sheet 9 for fabrication. (iii) the -- as shown inc [ 6 ] figure, drop prestretching member 18 and maintain at a molding position. In this molding position, the lower end side of box 25 sticks to the movable board 17 upper surface of clamping circuit 14, and the seal of between them is carried out. Movable plug 26 is in an extension state, and sheet 9 for fabrication is bulged by the movable plug 26 towards die surface 2o. The sheet 9 whole for fabrication is lengthened by Roughly equal - by this, therefore primary sheet 9 for fabrication is prestretched. (iv) As shown in the 6thd figure, raise form block 19 and maintain at a molding position. In this molding position, die surface 20 edge part of form block 19 sticks to the fixed board 15 undersurface of clamping circuit 14, and the seal of between them is carried out. It contracts so that movable plug 26 may not hit convex part 22 crestal plane with approach with sheet 9 for fabrication, and die surface 20, and primary prestretching is canceled. If convex part 22 crestal plane of form block 19 passes through the lower end side of each fixed plug 27, sheet 9 for fabrication will be pushed up by convex part 22, and the Oshiage Kicking of sheet 9 for fabrication will be prevented by each fixed plug 27 in the convex part 22 circumference. As a result, sheet 9 for fabrication will be put on convex part 22 by each fixed plug 27, and it will be pushed in in crevice 21, and sheet 9 for fabrication is lengthened by Roughly equal - by this corresponding to convex part 22 and crevice 21, therefore secondary sheet 9 for fabrication is prestretched. (v) the -- as shown ine [ 6 ] figure, operate Compressed air source P2 by the side of form block 19, and supply pressurization air between sheet 9 for fabrication, and die surface 20 via change-over valve 33. It is lengthened by Roughly equal - so that sheet 9 for fabrication may estrange from convex part 22 of die surface 20 by this, therefore 3rd sheet 9 for fabrication is prestretched. (vi) As shown in the 6thf figure, operate Compressed air source P1 by the side of prestretching member 18, and it supplies pressurization air in box 25, Source ■ of a vacuum by the side of form block 19 is operated, between die surface 20 and sheet 9 for fabrication is decompressed via change-over valve 33, this press-fits sheet 9 for fabrication to die surface 20, and it fabricates intermediate 10. Heating hardening of the intermediate 10 is carried out in the state of the press-fit, and cast 1 is obtained. above -- thickness 4 [ about ] -- in cast 1 using hazy sheet 9 for fabrication, the thickness of the Yamagata part 1a is 3.5~tetravalence, and the thickness of valley-shaped portion 1b is 4~4.50, and it turns out that thick equalization is attained. The effect of C0 invention According to the present invention manufacturing method, the synthetic resin cast controlled as much as possible in uneven-ization thicker than the die surface provided with the convex part and the crevice can be obtained by adopting a means to prestretch the sheet for fabrication 2 times or 3 times in advance of the press-fit to a die surface. According to the present invention manufacture device, the above-mentioned method can be enforced certainly.

[Brief Description of the Drawings]

Drawing 1 -- the sectional view of a synthetic resin cast, and Drawing 2 -- the [ the sectional view of the sheet for fabrication, and ] -- the [ 3a~] -- the [ the explanatory view of one process / in /e / 3 / figure can be set in the 1st cast manufacturing method explanatory view, and / in Drawing 4 / the 2nd cast manufacturing method /, and ] -- the [ the 5a~5thf figure and ] -- the 6a~6thf Yin -- the -- the [ 3. ] -- it is a cast manufacturing method explanatory view of four. P -- + -- Pt ... Compressed air source -- V -- V ... a vacuum -- a source -- one ... a synthetic resin -- a cast -- ten ... an intermediate -- nine ... fabrication -- for -- a sheet -- nine -- a ... facing down -- a crevice (crevice) -- nine -- b ... facing down -- convex -- a part (convex part) -- ten .. ten . ... a top -- the lower part -- flexibility -- a film -- ]

1 ... unhardened base material layer, 12 ... a synthetic resin liquid layer and one day [ ... A crevice, 22 / ... A convex part, 26 / ... A movable plug, 27 / ... Fixed plug ] ... A prestretching member, 19 ... A form block, 20 ... A die surface, 21