Inverted-inclination product forming die and production process of inverted-inclination product

Abstract

The invention belongs to the technical field of mold equipment, and particularly relates to an inverted-inclination product forming mold and a production process of an inverted-inclination product, the inverted-inclination product forming mold comprises a slurry suction forming mold, a wet pressing shaping mold and a hot pressing shaping mold, the slurry suction forming mold is used for forming slurry into an inverted-inclination product wet blank, and the hot pressing shaping mold is used for hot pressing; the wet-pressing shaping die extrudes a reverse-inclination product wet blank through inflation expansion of the first air bag to form a prefabricated reverse-inclination product, the hot-pressing shaping die conducts hot pressing on the prefabricated reverse-inclination product through inflation expansion of the second air bag to form a reverse-inclination product finished product, a traditional male die is replaced with the first air bag and the second air bag, and the reverse-inclination product can be produced and machined in a matched mode.

Description

Technical Field

[0001] The invention belongs to the technical field of mold equipment, and in particular relates to a molding mold for a reverse slope product and a production process for the reverse slope product. Background Art

[0002] Existing products with inverted slopes, such as bracelet stands and watch stands, have a concave middle position and a certain inverted slope, and cannot be produced and processed using traditional concave and convex molds;

[0003] For example, the spring seat extrusion mold with patent application number CN202011419567.4 comprises a die and a punch; the die is cylindrical and has openings at both ends; the punch comprises a first mold core and a second mold core, and the first mold core and the second mold core can be inserted into the die from both ends of the die, and the first mold core is provided with a limiting part forming groove of the spring seat, and the second mold core and the inner wall of the die together form the limiting part forming groove of the spring seat, and the limiting part forming groove is used to form the limiting part of the spring seat; after the mold is closed in place, the distance between the inner end faces of the first mold core and the second mold core is not less than twice the thickness of the support part of the spring seat, and the diameter of the part of the inner hole of the die between the inner end faces of the first mold core and the second mold core is greater than or equal to the outer diameter of the support part of the spring seat, but the disadvantage of this technical solution is that the die and the punch cannot be closed to produce products with a reverse slope. Summary of the invention

[0004] The purpose of the present invention is to provide a molding die for a sloped product and a production process for the sloped product to solve the problems in the prior art. The specific technical solution is as follows:

[0005] A forming mold for an inverted slope product comprises a slurry suction forming mold, a wet pressing shaping mold and a hot pressing shaping mold. The slurry suction forming mold is used to form a wet embryo of an inverted slope product from slurry. The wet pressing shaping mold extrude the wet embryo of the inverted slope product into a prefabricated inverted slope product by inflating a first airbag. The hot pressing shaping mold hot presses the prefabricated inverted slope product into a finished inverted slope product by inflating a second airbag.

[0006] Furthermore, the slurry suction forming mold includes a slurry suction upper mold and a slurry suction lower mold. After the slurry suction upper mold and the slurry suction lower mold are molded together, the card groove set on the slurry suction upper mold is engaged with the card block set on the slurry suction lower mold, and the cavity in the slurry suction upper mold and the cavity in the slurry suction lower mold are combined to form a combined cavity consistent with the shape of the inverted slope product.

[0007] Furthermore, a slurry suction chamber is provided in the upper slurry suction mold and the lower slurry suction mold, and a plurality of slurry suction holes are provided on the upper slurry suction mold and the lower slurry suction mold. The combined chamber is connected with the slurry suction chamber through the slurry suction holes, and connecting pipes are provided on the sides of the upper slurry suction mold and the lower slurry suction mold, and the ends of the connecting pipes are connected to the vacuum equipment.

[0008] Furthermore, the ends of the slurry suction upper mold and the slurry suction lower mold are fixed with a limiting block, the limiting block is threadedly connected with a locking nut, the locking nut is rotatably connected with a pressure plate, and after the slurry suction upper mold and the slurry suction lower mold are closed, a grouting equipment is inserted in the combined chamber, the end of the grouting equipment is against the slurry suction upper mold and the slurry suction lower mold, the grouting equipment is limited by the limiting block, the pressure plate is rotated, the front end of the pressure plate is against the edge of the grouting equipment, the locking nut is rotated, and the grouting equipment is pressed tightly against the slurry suction upper mold and the slurry suction lower mold through the pressure plate.

[0009] Furthermore, the grouting equipment includes a grouting shell, which is fixedly connected to the grouting pipe, the end of the grouting pipe is rotatably connected to the end of the extension pipe, the extension pipe is rotatably connected to the grouting shell, and the extension pipe is provided with a slurry outlet hole. After the slurry suction upper mold and the slurry suction lower mold are closed, the extension pipe is inserted into the combined chamber, the grouting shell is against the slurry suction upper mold and the slurry suction lower mold, a pair of limit blocks are used to limit the grouting shell, and a locking nut is rotated.

[0010] Furthermore, a sealing ring is provided between the upper and lower slurry suction molds and the grouting shell after they are closed, a filler is provided at the rotating connection between the extension tube and the grouting shell, the extension tube is fixedly connected to gear 1, gear 1 is meshed with gear 2 for transmission, gear 2 is connected to the output end of the motor, and the motor is fixed on the grouting shell.

[0011] Furthermore, the wet pressing shaping mold includes an extrusion upper mold and an extrusion lower mold, and the ends of the extrusion upper mold and the extrusion lower mold are fixed with a limiting block 2, the limiting block 3 is threadedly connected to the locking nut 3, and the locking nut 2 is rotatably connected to the pressure plate 2.

[0012] Furthermore, after the extrusion upper die and the extrusion lower die are closed together, an extrusion chamber is formed between the extrusion upper die and the extrusion lower die, a fixed shell one is against the ends of the extrusion upper die and the extrusion lower die, a fixed tube one is fixed in the fixed shell one, one end of the fixed tube one is connected to the inflation device, the other end of the fixed tube one is connected to an airbag one, the airbag one is located in the extrusion chamber, a sealing ring two is provided between the end portion after the extrusion upper die and the extrusion lower die are closed together and the fixed shell one, and a filler two is provided at the connection between the fixed tube one and the fixed shell one.

[0013] Further, the hot pressing shaping mold includes a hot pressing upper mold and a hot pressing lower mold, both of which are made of breathable steel, and a heating device is provided in the hot pressing upper mold and the hot pressing lower mold. After the hot pressing upper mold and the hot pressing lower mold are closed, a hot pressing chamber is formed between the hot pressing upper mold and the hot pressing lower mold, and the fixed shell two is against the ends of the hot pressing upper mold and the hot pressing lower mold. A fixed tube two is provided in the fixed shell two, one end of the fixed tube two is connected to the inflation device, and the other end of the fixed tube two is connected to the airbag two, and the airbag two is located in the hot pressing chamber;

[0014] The ends of the hot pressing upper die and the hot pressing lower die are both fixed with limiting blocks three, the limiting blocks three are threadedly connected with locking nuts three, the locking nuts three are rotatably connected with pressure plates three, the fixed shell two is fixedly connected with sealing rings three, and a filler three is provided at the connection between the fixed tube two and the fixed shell two.

[0015] A production process for a reverse slope product, producing the reverse slope product by using a reverse slope product forming mold as described in any one of the above, comprising the following steps:

[0016] S1. After the upper slurry suction mold and the lower slurry suction mold are molded together, slurry is injected into the combined cavity through the slurry injection equipment, and the slurry is adsorbed on the inner wall of the combined cavity through the vacuum equipment to form a wet embryo of the inverted slope product;

[0017] S2. Place the wet embryo of the inverted slope product into the extrusion lower die, and after the extrusion upper die and the extrusion lower die are closed, extend the airbag into the wet embryo of the inverted slope product, inflate the airbag, and squeeze the wet embryo of the inverted slope product close to the inner wall of the extrusion chamber to form a prefabricated inverted slope product;

[0018] S3. Place the prefabricated inverted slope product into the hot pressing lower mold. After the hot pressing upper mold and the hot pressing lower mold are closed, extend the second airbag into the prefabricated inverted slope product. The first airbag is inflated to squeeze the prefabricated inverted slope product tightly against the inner wall of the hot pressing chamber. At the same time, start the heating device, and the prefabricated inverted slope product is hot pressed to become a finished inverted slope product.

[0019] The advantages of the present invention are:

[0020] The slurry absorption forming mold can spray the slurry evenly onto the inner wall of the slurry absorption forming mold, and the slurry absorption forming mold has a certain vacuum adsorption function, which can keep the slurry close to the inner wall of the slurry absorption forming mold to form a wet embryo of a reverse slope product. The wet embryo of the reverse slope product is taken out from the slurry absorption forming mold and placed in a wet pressing shaping mold. Airbag one is inserted into the wet embryo of the reverse slope product, and airbag one is inflated to extrude the wet embryo of the reverse slope product to form a prefabricated reverse slope product. The prefabricated reverse slope product is taken out and placed in a hot pressing shaping mold. Airbag two is inserted into the prefabricated reverse slope product, and airbag two is inflated to hot press the prefabricated reverse slope product into a finished reverse slope product. By replacing traditional punches with airbags one and two, the production and processing of reverse slope products can be adapted. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the slurry suction molding mold of the present invention is schematically shown. Figure 1 ;

[0022] Figure 2 The structure of the slurry suction molding mold of the present invention is schematically shown. Figure 2 ;

[0023] Figure 3 The grouting equipment structure of the present invention is schematically shown in FIG. Figure 1 ;

[0024] Figure 4 The grouting equipment structure of the present invention is schematically shown in FIG. Figure 2 ;

[0025] Figure 5 The wet pressing shaping mold structure of the present invention is schematically shown in FIG. Figure 1 ;

[0026] Figure 6 The wet pressing shaping mold structure of the present invention is schematically shown in FIG. Figure 2 ;

[0027] Figure 7 The wet pressing shaping mold structure of the present invention is schematically shown in FIG. Figure 3 ;

[0028] Figure 8 The hot pressing shaping mold structure of the present invention is schematically shown in FIG. Figure 1 ;

[0029] Fig. 9 The hot pressing shaping mold structure of the present invention is schematically shown in FIG. Figure 2 ;

[0030] Fig.10 This is a schematic diagram of the finished product structure of the inverted slope product of the present invention;

[0031] Description of the markings in the figure:

[0032] The slurry suction molding mold 1; the slurry suction upper mold 101; the slurry suction lower mold 102; the slurry suction hole 103; the slurry suction chamber 104; the connecting pipe 105; the slot 106; the block 107; the limit block 108; the locking nut 109; the pressing plate 110; the grouting shell 111; the sealing ring 112; the extension pipe 113; the slurry outlet hole 114; the grouting pipe 115; the gear 116; the gear 2 117; the motor 118; the filler 119; the wet pressing shaping mold 2; the extrusion upper mold 201; the extrusion lower mold 20 2; limit block two 203; locking nut two 204; pressure plate two 205; fixed shell one 206; sealing ring two 207; fixed tube one 208; filler two 209; airbag one 210; hot pressing shaping mold 3; hot pressing upper mold 301; hot pressing lower mold 302; limit block three 303; locking nut three 304; pressure plate three 305; fixed shell two 306; fixed tube two 307; airbag two 308; sealing ring three 309; filler three 310; heating device 311; finished product 4 of inverted slope product. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] Embodiment 1

[0036] like Figure 1-Figure 10 As shown, a reverse slope product forming mold includes a slurry suction forming mold 1, a wet pressing shaping mold 2 and a hot pressing shaping mold 3. The slurry suction forming mold 1 is used to form a wet embryo of a reverse slope product from slurry. The wet pressing shaping mold 2 is used to extrude the wet embryo of the reverse slope product into a prefabricated reverse slope product by inflating an airbag 1 210. The hot pressing shaping mold 3 is used to hot press the prefabricated reverse slope product into a finished reverse slope product 4 by inflating an airbag 2 308.

[0037] The working principle of the above technical solution is as follows: the slurry absorption molding mold 1 can spray the slurry evenly onto the inner wall of the slurry absorption molding mold 1, and the slurry absorption molding mold 1 has a certain vacuum adsorption function, which can make the slurry close to the inner wall of the slurry absorption molding mold 1 to form a wet embryo of a reverse slope product, the wet embryo of the reverse slope product is taken out from the slurry absorption molding mold 1, and put into the wet pressing shaping mold 2, the airbag 1 210 extends into the wet embryo of the reverse slope product, the airbag 1 210 is inflated, and the wet embryo of the reverse slope product is squeezed to form a prefabricated reverse slope product, the prefabricated reverse slope product is taken out and put into the hot pressing shaping mold 3, the airbag 2 308 extends into the prefabricated reverse slope product, the airbag 2 308 is inflated, and the prefabricated reverse slope product is hot-pressed into a finished reverse slope product 4, and the traditional punch is replaced by the airbag 1 210 and the airbag 2 308, which can be adapted to the production and processing of reverse slope products;

[0038] The pulp can be selected from sugarcane pulp, bamboo pulp, wood pulp, etc.

[0039] Embodiment 2

[0040] like Figure 1-Figure 10As shown, the slurry suction molding mold 1 includes a slurry suction upper mold 101 and a slurry suction lower mold 102. After the slurry suction upper mold 101 and the slurry suction lower mold 102 are molded together, the clamping groove 106 provided on the slurry suction upper mold 101 is clamped with the clamping block 107 provided on the slurry suction lower mold 102, and the cavity in the slurry suction upper mold 101 and the cavity in the slurry suction lower mold 102 are combined to form a combined cavity consistent with the shape of the inverted slope product;

[0041] The slurry suction upper mold 101 and the slurry suction lower mold 102 are both provided with a slurry suction chamber 104, and the slurry suction upper mold 101 and the slurry suction lower mold 102 are both provided with a plurality of slurry suction holes 103, and the combined chamber is connected with the slurry suction chamber 104 through the slurry suction holes 103, and the slurry suction upper mold 101 and the slurry suction lower mold 102 are both provided with a connecting pipe 105 on the side, and the end of the connecting pipe 105 is connected to the vacuum device;

[0042] The ends of the slurry suction upper mold 101 and the slurry suction lower mold 102 are fixed with a limiting block 108, the limiting block 108 is threadedly connected with a locking nut 109, and the locking nut 109 is rotatably connected with a pressing plate 110. After the slurry suction upper mold 101 and the slurry suction lower mold 102 are molded together, a grouting device is inserted in the combined chamber, and the end of the grouting device is against the slurry suction upper mold 101 and the slurry suction lower mold 102. The grouting device is limited by the limiting block 108, and the pressing plate 110 is rotated, and the front end of the pressing plate 110 is against the edge of the grouting device, and the locking nut 109 is rotated, and the grouting device is pressed tightly against the slurry suction upper mold 101 and the slurry suction lower mold 102 through the pressing plate 110;

[0043] The working principle of the above technical solution is as follows: the slurry suction upper mold 101 is moved downward, and the clamping groove 106 provided on the slurry suction upper mold 101 is clamped with the clamping block 107 provided on the slurry suction lower mold 102, so that the slurry suction upper mold 101 and the slurry suction lower mold 102 are molded together, and the front end of the grouting equipment is inserted into the combined chamber, and the rear end of the grouting equipment is against the slurry suction upper mold 101 and the slurry suction lower mold 102, and blocked at the mouth of the combined chamber, and the two limiting blocks 108 on the slurry suction upper mold 101 and the two limiting blocks 108 on the slurry suction lower mold 102 are in contact with the edge of the grouting equipment, and the grouting equipment is limited so that the front end of the grouting equipment is located at the center of the combined chamber, so that the grouting equipment evenly sprays slurry on the inner wall of the combined chamber, and the vacuum equipment is started, and the slurry suction chamber 104 is vacuumed through the connecting pipe 105, and the slurry is adsorbed onto the inner wall of the combined chamber through the slurry suction hole 103, and the slurry forms a wet embryo of an inverted slope product;

[0044] Rotate the pressing plate 110, the front end of the pressing plate 110 is against the edge of the grouting equipment, and the locking nut 109 is rotated to press the grouting equipment tightly against the grouting upper mold 101 and the grouting lower mold 102 through the pressing plate 110, so as to increase the sealing between the grouting upper mold 101 and the grouting lower mold 102 and the grouting equipment after the mold is closed.

[0045] Embodiment 3

[0046] like Figure 1-Figure 10 As shown, the grouting equipment includes a grouting shell 111, the grouting shell 111 is fixedly connected to the grouting pipe 115, the end of the grouting pipe 115 is rotatably connected to the end of the extension pipe 113, the extension pipe 113 is rotatably connected to the grouting shell 111, and a slurry outlet hole 114 is provided on the extension pipe 113. After the slurry suction upper mold 101 and the slurry suction lower mold 102 are molded together, the extension pipe 113 is inserted into the combined chamber, the grouting shell 111 is against the slurry suction upper mold 101 and the slurry suction lower mold 102, the limit block 108 limits the grouting shell 111, and the locking nut 109 is rotated;

[0047] After the upper slurry suction mold 101 and the lower slurry suction mold 102 are molded together, a sealing ring 112 is provided between the slurry injection shell 111, a filler 119 is provided at the rotation connection between the extension tube 113 and the slurry injection shell 111, the extension tube 113 is fixedly connected to the gear 116, the gear 116 is meshed with the gear 2 117 for transmission, the gear 2 117 is connected to the output end of the motor 118, and the motor 118 is fixed on the slurry injection shell 111;

[0048] The working principle of the above technical solution is as follows: one end of the grouting pipe 115 is connected to the slurry pump, and the other end of the grouting pipe 115 is rotatably connected to the extension pipe 113. The slurry pump is started to extract the slurry, and the slurry enters the extension pipe 113 through the grouting pipe 115, and then is ejected through the slurry outlet hole 114. The motor 118 is started to drive the gear 2 117 to rotate, drive the gear 1 116 to rotate, drive the extension pipe 113 to rotate, and drive the slurry to rotate and eject, so that the ejection is uniform, and the thickness uniformity of the wet embryo of the inverted slope product is guaranteed;

[0049] The sealing ring 112 increases the sealing performance between the upper slurry suction mold 101 and the lower slurry suction mold 102 and the grouting shell 111 after the mold is closed, and the filler 119 increases the sealing performance of the rotation connection between the grouting shell 111 and the extension tube 113.

[0050] Embodiment 4

[0051] like Figure 1-Figure 10 As shown, the wet pressing shaping mold 2 includes an extrusion upper mold 201 and an extrusion lower mold 202, and the ends of the extrusion upper mold 201 and the extrusion lower mold 202 are fixed with a second limiting block 203, the third limiting block 303 is threadedly connected with a locking nut 304, and the locking nut 204 is rotatably connected with a second pressing plate 205;

[0052] After the extrusion upper die 201 and the extrusion lower die 202 are molded together, an extrusion chamber is formed between the extrusion upper die 201 and the extrusion lower die 202, a fixed shell 206 is against the ends of the extrusion upper die 201 and the extrusion lower die 202, a fixed tube 208 is fixed in the fixed shell 206, one end of the fixed tube 208 is connected to the inflation device, and the other end of the fixed tube 208 is connected to the airbag 210, and the airbag 210 is located in the extrusion chamber, a sealing ring 207 is provided between the end of the extrusion upper die 201 and the extrusion lower die 202 after the mold is closed and the fixed shell 206, and a filler 209 is provided at the connection between the fixed tube 208 and the fixed shell 206;

[0053] The working principle of the above technical solution is as follows: the wet embryo of the inverted slope product is placed into the extrusion lower die 202, and after the extrusion upper die 201 and the extrusion lower die 202 are molded together, the airbag 210 is extended into the wet embryo of the inverted slope product, and the fixed shell 206 is against the end of the extrusion upper die 201 and the extrusion lower die 202 after the mold is closed, the pressing plate 205 is rotated, and the front end of the pressing plate 205 is pressed on the edge of the fixed shell 206, and the locking nut 204 is rotated so that the front end of the pressing plate 205 is tightly pressed on the edge of the fixed shell 206, the sealing ring 207 can increase the sealing between the fixed shell 206 and the extrusion upper die 201, the filler 209 can increase the sealing between the fixed tube 208 and the fixed shell 206, and the inflation device is started, and the airbag 210 is inflated to squeeze the wet embryo of the inverted slope product tightly against the inner wall of the extrusion chamber, and the inner and outer surfaces of the wet embryo of the inverted slope product are squeezed smooth to form a prefabricated inverted slope product.

[0054] Embodiment 5

[0055] like Figure 1-Figure 10 As shown, the hot pressing shaping mold 3 includes a hot pressing upper mold 301 and a hot pressing lower mold 302, both of which are made of breathable steel, and a heating device 311 is provided in the hot pressing upper mold 301 and the hot pressing lower mold 302. After the hot pressing upper mold 301 and the hot pressing lower mold 302 are molded together, a hot pressing chamber is formed between the hot pressing upper mold 301 and the hot pressing lower mold 302, and a fixed shell 306 is against the ends of the hot pressing upper mold 301 and the hot pressing lower mold 302. A fixed tube 307 is provided in the fixed shell 306, one end of the fixed tube 307 is connected to the inflation device, and the other end of the fixed tube 307 is connected to the airbag 308, and the airbag 308 is located in the hot pressing chamber;

[0056] The ends of the hot pressing upper mold 301 and the hot pressing lower mold 302 are fixed with a limiting block 303, the limiting block 303 is threadedly connected with a locking nut 304, the locking nut 304 is rotatably connected with a pressing plate 305, the fixed housing 2 306 is fixedly connected with a sealing ring 309, and a filler 310 is provided at the connection between the fixed pipe 2 307 and the fixed housing 2 306;

[0057] The working principle of the above technical solution is as follows: the prefabricated inverted slope product is placed in the hot pressing lower mold 302, and after the hot pressing upper mold 301 and the hot pressing lower mold 302 are molded together, the airbag 2 308 is extended into the prefabricated inverted slope product, the fixed shell 2 306 is pressed against the end of the hot pressing upper mold 301 and the hot pressing lower mold 30 after the mold is closed, the pressing plate 3 305 is rotated, and the front end of the pressing plate 3 305 is pressed on the edge of the fixed shell 2 306, and the locking nut 304 is rotated so that the front end of the pressing plate 3 305 is tightly pressed on the fixed shell 2 On the edge of 306, the sealing ring three 309 can increase the sealing between the fixed shell two 306 and the hot pressing upper mold 301, the filler three 310 can increase the sealing between the fixed tube two 307 and the fixed shell two 306, start the inflation device, the airbag two 308 is inflated, and the prefabricated inverted slope product is squeezed tightly against the inner wall of the hot pressing chamber, and the heating device 311 is started at the same time, part of the moisture in the prefabricated inverted slope product is evaporated, and the prefabricated inverted slope product is hot pressed to become a finished inverted slope product 4.

[0058] Embodiment 6

[0059] like Figure 1-Figure 10 As shown, a production process of a reverse slope product, producing a reverse slope product by a reverse slope product forming mold as described in any one of the above, comprises the following steps:

[0060] S1. After the upper mold 101 and the lower mold 102 are molded together, grouting is injected into the combined chamber by the grouting equipment, and the slurry is adsorbed on the inner wall of the combined chamber by the vacuum equipment to form a wet embryo of the inverted slope product;

[0061] S2. The wet embryo of the inverted slope product is placed in the extrusion lower die 202. After the extrusion upper die 201 and the extrusion lower die 202 are closed, the airbag 210 is extended into the wet embryo of the inverted slope product, the airbag 210 is inflated, and the wet embryo of the inverted slope product is squeezed close to the inner wall of the extrusion chamber to form a prefabricated inverted slope product;

[0062] S3. The prefabricated inverted slope product is placed in the hot pressing lower mold 302. After the hot pressing upper mold 301 and the hot pressing lower mold 302 are molded together, the airbag 2 308 is extended into the prefabricated inverted slope product, and the airbag 1 210 is inflated to squeeze the prefabricated inverted slope product tightly against the inner wall of the hot pressing chamber. At the same time, the heating device 311 is started, and the prefabricated inverted slope product is hot pressed to become a finished inverted slope product 4;

[0063] The working principle of the above technical solution is as follows: after the slurry absorption upper mold 101 and the slurry absorption lower mold 102 are molded together, slurry is injected into the combined chamber through the slurry injection equipment, and the slurry is adsorbed on the inner wall of the combined chamber through the vacuum equipment to form a wet embryo of the inverted slope product, and the wet embryo of the inverted slope product is placed in the extrusion lower mold 202. After the extrusion upper mold 201 and the extrusion lower mold 202 are molded together, the airbag 210 is extended into the wet embryo of the inverted slope product, and the airbag 210 is inflated to squeeze the wet embryo of the inverted slope product tightly. The prefabricated inverted slope product is attached to the inner wall of the extrusion chamber to form a prefabricated inverted slope product. The prefabricated inverted slope product is placed in the hot pressing lower mold 302. After the hot pressing upper mold 301 and the hot pressing lower mold 302 are closed, the airbag 2 308 is extended into the prefabricated inverted slope product. The airbag 1 210 is inflated to squeeze the prefabricated inverted slope product tightly against the inner wall of the hot pressing chamber. At the same time, the heating device 311 is started, and part of the moisture in the prefabricated inverted slope product is evaporated. The prefabricated inverted slope product is hot pressed to become a finished inverted slope product 4.

[0064] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A mold for forming a product with an inverted slope, characterized in that: The invention comprises a slurry suction molding die (1), a wet pressing shaping die (2) and a hot pressing shaping die (3). The slurry suction molding die (1) is used to form a wet embryo of a reverse slope product from slurry. The wet pressing shaping die (2) is used to extrude the wet embryo of the reverse slope product into a prefabricated reverse slope product by inflating a first airbag (210). The hot pressing shaping die (3) is used to hot press the prefabricated reverse slope product into a finished reverse slope product (4) by inflating a second airbag (308).

2. A mold for forming a product with an inverted slope according to claim 1, characterized in that: The slurry suction molding die (1) comprises a slurry suction upper die (101) and a slurry suction lower die (102). After the slurry suction upper die (101) and the slurry suction lower die (102) are molded together, a clamping groove (106) provided on the slurry suction upper die (101) is clamped with a clamping block (107) provided on the slurry suction lower die (102), and the cavity in the slurry suction upper die (101) and the cavity in the slurry suction lower die (102) are combined to form a combined cavity that is consistent with the appearance of the inverted slope product.

3. A mold for forming a product with an inverted slope according to claim 2, characterized in that: The slurry suction upper mold (101) and the slurry suction lower mold (102) are both provided with a slurry suction chamber (104), and the slurry suction upper mold (101) and the slurry suction lower mold (102) are both provided with a plurality of slurry suction holes (103), the combined chamber is connected with the slurry suction chamber (104) through the slurry suction holes (103), and the sides of the slurry suction upper mold (101) and the slurry suction lower mold (102) are both provided with connecting pipes (105), and the ends of the connecting pipes (105) are connected to a vacuum extraction device.

4. A mold for forming a product with an inverted slope according to claim 3, characterized in that: The ends of the slurry suction upper mold (101) and the slurry suction lower mold (102) are both fixed with a limiting block (108), the limiting block (108) is threadedly connected to a locking nut (109), and the locking nut (109) is rotatably connected to a pressing plate (110). After the slurry suction upper mold (101) and the slurry suction lower mold (102) are molded together, a slurry injection device is inserted into the combined chamber, and the ends of the slurry injection device are against the slurry suction upper mold (101) and the slurry suction lower mold (102). The slurry injection device is limited by the limiting block (108), and the pressing plate (110) is rotated, and the front end of the pressing plate (110) is against the edge of the slurry injection device. The locking nut (109) is rotated, and the slurry injection device is pressed tightly against the slurry suction upper mold (101) and the slurry suction lower mold (102) through the pressing plate (110).

5. A mold for forming a product with an inverted slope according to claim 4, characterized in that: The grouting equipment comprises a grouting shell (111), the grouting shell (111) is fixedly connected to a grouting pipe (115), the end of the grouting pipe (115) is rotatably connected to the end of an extension pipe (113), the extension pipe (113) is rotatably connected to the grouting shell (111), a grouting hole (114) is provided on the extension pipe (113), after the grouting upper mold (101) and the grouting lower mold (102) are molded together, the extension pipe (113) is inserted into the combined chamber, the grouting shell (111) is pressed against the grouting upper mold (101) and the grouting lower mold (102), a limiting block (108) limits the grouting shell (111), and a locking nut (109) is rotated.

6. A mold for forming a product with an inverted slope according to claim 5, characterized in that: After the upper slurry suction mold (101) and the lower slurry suction mold (102) are molded together, a sealing ring (112) is provided between the slurry injection shell (111); a filler (119) is provided at the rotation connection between the extension tube (113) and the slurry injection shell (111); the extension tube (113) is fixedly connected to the gear (116); the gear (116) and the gear (117) are meshed for transmission; the gear (117) is connected to the output end of a motor (118); and the motor (118) is fixed to the slurry injection shell (111).

7. A mold for forming a product with an inverted slope according to claim 6, characterized in that: The wet pressing shaping die (2) comprises an extrusion upper die (201) and an extrusion lower die (202), the ends of the extrusion upper die (201) and the extrusion lower die (202) are both fixed with a second limiting block (203), the third limiting block (303) is threadedly connected to a third locking nut (304), and the second locking nut (204) is rotatably connected to a second pressing plate (205).

8. A mold for forming a product with an inverted slope according to claim 7, characterized in that: After the extrusion upper die (201) and the extrusion lower die (202) are molded together, an extrusion chamber is formed between the extrusion upper die (201) and the extrusion lower die (202); a fixed shell (206) is pressed against the ends of the extrusion upper die (201) and the extrusion lower die (202); a fixed tube (208) is fixed inside the fixed shell (206); one end of the fixed tube (208) is connected to the inflation device; the other end of the fixed tube (208) is connected to an airbag (210); the airbag (210) is located in the extrusion chamber; a sealing ring (207) is provided between the end of the extrusion upper die (201) and the extrusion lower die (202) after the molds are molded together and the fixed shell (206); a filler (209) is provided at the connection between the fixed tube (208) and the fixed shell (206).

9. A sloped product forming die according to claim 8, characterized in that: The hot pressing shaping mold (3) comprises a hot pressing upper mold (301) and a hot pressing lower mold (302), both of which are made of breathable steel. A heating device (311) is provided in the hot pressing upper mold (301) and the hot pressing lower mold (302). After the hot pressing upper mold (301) and the hot pressing lower mold (302) are molded together, a hot pressing chamber is formed between the hot pressing upper mold (301) and the hot pressing lower mold (302). A second fixed shell (306) is pressed against the ends of the hot pressing upper mold (301) and the hot pressing lower mold (302). A second fixed tube (307) is provided in the second fixed shell (306). One end of the second fixed tube (307) is connected to the inflation device, and the other end of the second fixed tube (307) is connected to the second airbag (308). The second airbag (308) is located in the hot pressing chamber.

10. A production process for a reverse slope product, producing the reverse slope product by a reverse slope product forming mold according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. After the slurry suction upper mold (101) and the slurry suction lower mold (102) are molded together, slurry is injected into the combined chamber through the slurry injection equipment, and the slurry is adsorbed on the inner wall of the combined chamber through the vacuum equipment to form a wet embryo of the inverted slope product; S2. The wet embryo of the inverted slope product is placed in the extrusion lower die (202). After the extrusion upper die (201) and the extrusion lower die (202) are closed, the airbag (210) is extended into the wet embryo of the inverted slope product. The airbag (210) is inflated to extrude the wet embryo of the inverted slope product tightly against the inner wall of the extrusion chamber to form a prefabricated inverted slope product. S3. The prefabricated inverted slope product is placed in the hot pressing lower mold (302). After the hot pressing upper mold (301) and the hot pressing lower mold (302) are molded together, the second airbag (308) is extended into the prefabricated inverted slope product, and the first airbag (210) is inflated to squeeze the prefabricated inverted slope product tightly against the inner wall of the hot pressing chamber. At the same time, the heating device (311) is started, and the prefabricated inverted slope product is hot pressed to become a finished inverted slope product (4).

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