CN212611692U - Paper-plastic integral bottle and forming die - Google Patents
Paper-plastic integral bottle and forming die Download PDFInfo
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- CN212611692U CN212611692U CN202020814443.5U CN202020814443U CN212611692U CN 212611692 U CN212611692 U CN 212611692U CN 202020814443 U CN202020814443 U CN 202020814443U CN 212611692 U CN212611692 U CN 212611692U
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Abstract
The utility model relates to a whole bottle and forming die are moulded to paper, the mould is including inhaling thick liquid system, extrusion system and hot briquetting system, the bottle adopts the elastomer bag to exert pressure through pre-compaction forming die and produces the wet embryo of pre-compaction, shifts the wet embryo of pre-compaction to the hot pressing lower mould, and mould will wet even extrusion of embryo on the hot pressing lower mould surface through the expanded elastomer bag after the compound die, and the hot pressing lower mould has heating and exhaust function to dry wet embryo, produces integration paper bottle product.
Description
Technical Field
The utility model relates to a shaping technical field of shaping product is moulded to paper, in particular to development of the technology mould of whole bottle is moulded to paper.
Background
The existing technology of paper-plastic bottle products adopts two half-side bottles to be formed and then is bonded by glue or adopts a paper tube to bond a bottle opening and a bottle bottom, and the technology comprises the steps of forming, gluing, pressing and cutting excess edges, for example, patent CN201320746431 discloses a paper-plastic bottle body which comprises a bottle body and a plastic end arranged at the upper part of the bottle body, wherein the bottle body is a paper tube with an upward opening, and the lower edge of the plastic end is tightly connected with the opening of the paper tube to seal the inner cavity of the paper tube; patent CN 201420833805 discloses a stock solution bottle with go-between, including the paper bottle, the inside of paper bottle is provided with the inner bag that is used for storing liquid, and the paper bottle includes half first cavity and the half second cavity of relative setting, and half first cavity and the half butt joint of second cavity form and are used for holding the inner chamber of inner bag is through go-between fixed connection between. The process flow is long, the process is complex, the cost is high, and the gluing is not easy to decompose, so that the environmental protection performance is poor. In order to reduce the cost of paper plastic bottle to improve the feature of environmental protection, satisfy the environmental protection requirement, the utility model designs a whole paper plastic bottle forming process. The utility model discloses a bottle forming process is moulded to whole paper only has the shaping, cuts waste material two steps, has reduced technologies such as rubber coating pressfitting, improves the feature of environmental protection of product greatly to reduce the cost of bottle is moulded to paper, the large batch popularization of being convenient for.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the utility model discloses develop and use high temperature and high pressure resistant elastomeric material in the design of mould is moulded to paper. The novel in-bottle grouting process is adopted to solve the problem of the pulp suction process of the bottle, and the paper-plastic mold adopts the mold integral design made of a new elastomer and comprises an extrusion mold and a hot-pressing upper mold.
The utility model discloses specifically adopt following technical scheme:
a mould for paper-plastic integral bottles comprises a pulp suction system, an extrusion system and a hot-press forming system. The slurry suction system is used for grouting to preliminarily form a wet bottle blank, and the wet bottle blank preliminarily formed by grouting is formed into a wet blank after slurry suction through vacuumizing; the extrusion system is used for forming a preformed paper bottle by extruding an elastomer bag; the hot press molding system is used for forming the integral paper bottle through extrusion of the elastomer bag.
The slurry suction system comprises a grouting template, a grouting cavity and a slurry suction template, wherein the slurry suction template is provided with a concave cavity consistent with the appearance of the bottle, and is positioned above the concave cavity and connected with the grouting cavity; the grouting cavity is provided with an extension part, a grouting pipe hole is formed in the extension part, the extension part extends into a concave cavity of the slurry suction template, and a bottle wet blank is formed preliminarily through grouting of the grouting pipe hole; the slurry suction template is provided with a slurry suction hole and a slurry suction cavity, the slurry suction hole is formed in the surface of the concave cavity and is connected with the slurry suction cavity, the slurry suction cavity is connected with a vacuum device, and a bottle wet blank formed preliminarily by grouting is formed into a wet blank after slurry suction through vacuumizing.
Further, the grouting cavity is connected with a paper pulp pool, and the paper pulp can be selected from sugarcane pulp, bamboo pulp, wood pulp and the like.
Furthermore, grouting pipe holes are uniformly formed in the extending part.
And further, a pulp supplementing device is also arranged, a bottle wet blank is preliminarily formed by grouting through the grouting pipe hole, and if a part with uneven pulp exists, pulp is supplemented through the pulp supplementing device.
Specifically, the grouting template and the slurry suction template form a bottle cavity, and the slurry suction template consists of slurry suction half templates.
Further specifically, the pulp suction holes on the surface of the concave cavity respectively correspond to the bottle mouth, the bottle neck, the bottle body and the bottle bottom of the bottle cavity, and the density of the pulp suction holes on the bottle mouth, the bottle neck and the bottle body is greater than that of the pulp suction holes on the bottle bottom.
The extrusion system consists of an extrusion die, a pressurization cavity, an elastomer bag, a pulp suction die and a wet blank after pulp suction. The pressurizing cavity is arranged in the extruding die and connected with the elastomer bag, the extruding die is arranged above the slurry suction die and forms a bottle cavity with the slurry suction die, the wet blank after slurry suction is arranged in the bottle cavity, the elastomer bag extends into the wet blank arranged in the bottle cavity, and after die assembly, the elastomer bag pressurizes, expands and extrudes the wet blank to be attached to the inner wall of the bottle cavity to form the preformed paper bottle.
Furthermore, the elastomer bag is pressurized by filling high-pressure gas, water pressure or oil pressure and the like, so that the pressure of the inner cavity of the wet blank after slurry absorption plays roles in drainage and preforming.
Specifically, the extrusion die and the pulp suction die form a bottle cavity, and the pulp suction die consists of pulp suction half dies.
The hot-press molding system consists of a hot-press upper die, a pressurizing cavity, an elastomer bag, a hot-press lower die and a preformed paper bottle. The pressurizing cavity is arranged in the hot-pressing upper die and is connected with the elastomer bag, the hot-pressing upper die is arranged above the hot-pressing lower die and forms a bottle cavity with the hot-pressing lower die, the preformed paper bottle is arranged in the bottle cavity, the elastomer bag extends into the preformed paper bottle arranged in the bottle cavity, and after die assembly is carried out, the elastomer bag pressurizes, expands and extrudes the preformed paper bottle to be attached to the inner wall of the bottle cavity to form the integral paper bottle.
Furthermore, the elastomer bag is pressurized by filling high-pressure gas, water pressure or oil pressure and the like, so that the pressure of the inner cavity of the preforming paper bottle plays the roles of drainage and forming, and the paper blank is ensured to be formed.
Specifically, the hot-pressing upper die and the hot-pressing lower die form a bottle cavity, and the hot-pressing lower die consists of a bottle body part and a bottle bottom part.
The hot pressing lower die is made of a breathable material and can be polished, and water vapor is quickly exhausted at high temperature to quickly dry the product. The hot pressing mold is made of permeable steel, and the micro holes made of the permeable steel can absorb water vapor to achieve the purpose of rapid exhaust.
The elastomer bag is made of high-pressure-resistant and high-temperature-resistant materials. The elastomeric bags in the extrusion system and the hot-press forming system may be the same or different.
The hot-press molding system is also provided with a hot-press device for heating and pressurizing the system.
The bottle prepared by the mould is a paper-plastic integral bottle.
The bottle wall may be irregularly shaped.
The process for molding the integral bottle by using the mold comprises the following steps:
(1) assembling a slurry suction system to enable the slurry suction system to be in a mold closing state, and spraying slurry to the position of the bottle cavity through the grouting cavity and the grouting holes of the extension part to enable slurry in the bottle cavity to be sufficient and uniform;
if the slurry is not uniform, the slurry is supplemented through a slurry supplementing device;
(2) starting the vacuum equipment, and vacuumizing the pulp suction cavity to enable the paper pulp to be uniformly adsorbed on the surface of the pulp suction mould to form a wet blank after pulp suction;
the specific vacuum pumping controls the water content of the wet embryo to be about 70-80% and the thickness to be about 2.5 mm.
(3) Transferring the wet blank after slurry absorption to an extrusion system, placing the wet blank after slurry absorption in a bottle cavity, extending an elastomer bag into the wet blank placed in the bottle cavity, closing the mold, and pressurizing and expanding the elastomer bag to extrude the wet blank to be attached to the inner wall of the bottle cavity to form a preformed paper bottle;
the pressure of the elastomer bag is controlled to be 1 kilogram force, so that the water content of the preformed paper bottle is 40% -50%, and the thickness is 1.5 mm.
The elastomeric bag can apply different pressures according to different requirements of the product.
(4) Transferring the preformed paper bottle to a hot-press forming system, placing the preformed paper bottle in a bottle cavity, extending the elastomer bag into the preformed paper bottle placed in the bottle cavity, closing the mold, pressurizing and expanding the elastomer bag to extrude the preformed paper bottle to be attached to the inner wall of the bottle cavity, and hot-press forming the integral paper bottle.
The product has different thickness and water content, such as 3-5% of water content and 1.0mm of thickness.
The hot-press molding system is heated to 150 ℃ through a hot-press mold, the pressurization of the elastomer bag is about 5 kilograms force, and the hot-press molding system can be adjusted according to the requirements of products.
Drawings
Fig. 1 is a schematic structural diagram of a grouting system in a mold-opened state;
fig. 2 is a schematic structural diagram of the grouting system in a mold closing state;
FIG. 3 is a schematic structural view of the pulp-sucking system in the open state;
FIG. 4 is a schematic structural view of the slurry suction system in a mold closing state;
fig. 5 is a schematic structural view of the hot press molding system in the mold-opened state;
fig. 6 is a schematic structural view of the hot press molding system in a mold closing state.
Description of reference numerals:
1. grouting a template; 2. grouting a cavity; 21. an extension portion; 3. grouting pipe holes; 4. a pulp suction template; 5. a pulp sucking hole; 6. a pulp sucking cavity; 7. wet embryos after pulp absorption; 8. extruding the die; 81. performing paper bottles in advance; 9. a pressurizing cavity; 10. an elastomeric bag; 11. a pulp sucking mould; 12. hot-pressing the upper die; 13. hot-pressing the lower die; 91. a pressurizing cavity; 92. a body portion; 93. a bottle bottom portion; 14. an elastomeric bag; 15. integral paper bottle
Detailed Description
The invention will be further described with reference to fig. 1-6.
Example 1
The structure schematic diagram of the grouting system in the state of mold opening and mold closing of the utility model is described according to the attached drawings 1 and 2, the part marked with 1-5 is the mold structure design combined to form the grouting system, the concrete slurry suction system comprises a grouting template 1, a grouting cavity 2 and a slurry suction template 4, the slurry suction template 4 is provided with a cavity consistent with the appearance of a bottle, the grouting template 1 is positioned above the cavity, the grouting template 1 and the slurry suction template 4 form a bottle cavity, the slurry suction template 4 consists of slurry suction half templates, and the grouting template 1 is connected with the grouting cavity 2; the grouting cavity is provided with an extension part 21, a grouting pipe hole 3 is formed in the extension part 21, the extension part 21 extends into a concave cavity of the grouting template 4, and a bottle wet blank 7 is formed preliminarily through grouting of the grouting pipe hole 3; the pulp suction template is provided with a pulp suction hole 5 and a pulp suction cavity 6, the pulp suction hole 5 is arranged on the surface of the concave cavity and is connected with the pulp suction cavity 6, the pulp suction hole 5 on the surface of the concave cavity respectively corresponds to a bottle opening, a bottle neck, a bottle body and a bottle bottom of the bottle cavity, the density of the pulp suction holes on the bottle opening, the bottle neck and the bottle body is greater than that of the pulp suction holes on the bottle bottom, the pulp suction cavity 6 is connected with a vacuum device (not shown), under a mold closing state, pulp is sprayed to the part of the bottle cavity through the grouting cavity 2 and the grouting holes 3 of the extension part 21, the pulp is cane pulp, and the pulp in the bottle cavity is sufficient and uniform; starting a vacuum device (not shown), vacuumizing the pulp suction cavity 6 to enable the paper pulp to be uniformly adsorbed on the surface of the pulp suction mould to form a wet blank 7 after pulp suction, controlling the vacuumizing to be about 0.7Mpa through an electromagnetic valve and a pressure gauge, and controlling the water content of the wet blank to be about 70-80% and the thickness to be 2.5 mm.
According to fig. 3 and fig. 4, the structure schematic diagram of the slurry suction system in the mold opening and closing state is shown. The extrusion system consists of an extrusion die 8, a pressurizing cavity 9, an elastomer bag 10, a pulp suction die 11 and a wet blank 7 after pulp suction. The pressurizing cavity 9 is arranged in the extruding die 8 and connected with the elastomer bag 10, the extruding die 8 is arranged above the pulp absorbing die 11 and forms a bottle cavity with the pulp absorbing die 11, the wet blank 7 after pulp absorption is arranged in the bottle cavity, the elastomer bag 10 extends into the wet blank arranged in the bottle cavity, and after die assembly, the elastomer bag pressurizes, expands and extrudes the wet blank to be attached to the inner wall of the bottle cavity to form the preformed paper bottle 81. The elastic body bag 10 is an elastic body which can be stretched, and a mold is pressurized and formed by media such as inflation, water, oil and the like. And (3) performing the wet blank 7 of the suction pulp after the elastomer is pressurized in a 'die assembly' state, and controlling the pressure applied by the elastomer bag to be 1 kilogram force so that the water content of the preformed paper bottle is 40-50% and the thickness of the preformed paper bottle is 1.5 mm.
According to fig. 5 and fig. 6, the structure diagram of the hot press forming system in the mold opening and closing state of the present invention is shown, the hot press upper mold 12 is composed of the high temperature and high pressure resistant elastomer of the elastomer bag 14, the hot press lower mold 13 is composed of 2 mold body parts 92 and the bottom part 93, and the hot press forming system is composed of the hot press upper mold 12, the pressurizing cavity 91, the elastomer bag 14, the hot press lower mold 13 and the preformed paper bottle 81. The pressurization cavity 91 is arranged in the hot-pressing upper die 12 and is connected with the elastomer bag 14, the hot-pressing upper die 12 is arranged above the hot-pressing lower die 13 and forms a bottle cavity with the hot-pressing lower die 13, the preformed paper bottle 81 is arranged in the bottle cavity, the elastomer bag 14 extends into the preformed paper bottle arranged in the bottle cavity, the hot-pressing upper die 12 and the hot-pressing lower die 13 are provided with exhaust grooves, after die assembly, the integral paper-plastic bottle 15 is integrally formed by inflating and pressing the hot-pressing upper die 12 through elastomer deformation under the condition of die assembly, the heating is carried out to 150 ℃ through a hot-pressing die, the pressurization of the elastomer bag is about 5 kilograms, redundant moisture is discharged through the exhaust grooves, the moisture content of the finished integral paper-plastic bottle 15 is 3% -5%, the thickness is about 1.0mm, and the elastomer bag 14 is taken out by exhaust gas.
Example 2
The structural schematic diagram of the grouting system in the state of die opening and die closing is described according to the attached drawings 1 and 2, the part marked with 1-5 is the structural design of a die combined into the grouting system, the concrete slurry suction system comprises a grouting template 1, a grouting cavity 2 and a slurry suction template 4, the slurry suction template 4 is provided with a concave cavity consistent with the appearance of a bottle, the grouting template 1 is positioned above the concave cavity, the grouting template 1 and the slurry suction template 4 form a bottle cavity, the slurry suction template 4 consists of slurry suction half templates, and the grouting template 1 is connected with the grouting cavity 2; the grouting cavity is provided with an extension part 21, a grouting pipe hole 3 is formed in the extension part 21, the extension part 21 extends into a concave cavity of the grout suction template 4, and grouting is performed through the grouting pipe hole 3 to initially form a bottle wet blank 7; the pulp suction template is provided with a pulp suction hole 5 and a pulp suction cavity 6, the pulp suction hole 5 is arranged on the surface of the concave cavity and is connected with the pulp suction cavity 6, the pulp suction hole 5 on the surface of the concave cavity respectively corresponds to a bottle mouth, a bottle neck, a bottle body and a bottle bottom of the bottle cavity, the density of the pulp suction holes on the bottle mouth, the bottle neck and the bottle body is greater than that of the pulp suction holes on the bottle bottom, the pulp suction cavity 6 is connected with a vacuum device (not shown), the parts of the bottle cavity are grouted through the grouting cavity 2 and the grouting holes 3 of the extension part 21 in a mold closing state, the pulp is bamboo pulp, pressure is applied to enable the bamboo pulp to be grouted into the corresponding parts of the bottle cavity, and the pulp in the bottle cavity is sufficient and uniform; starting a vacuum device (not shown), vacuumizing the pulp suction cavity 6 to enable the paper pulp to be uniformly adsorbed on the surface of the pulp suction mould to form a wet blank 7 after pulp suction, controlling the vacuumizing to be about 0.7Mpa through an electromagnetic valve and a pressure gauge, and controlling the water content of the wet blank to be about 70-80% and the thickness to be 2.5 mm.
According to fig. 3 and 4, the structure of the slurry suction system in the open and closed states is schematically shown. The extrusion system consists of an extrusion die 8, a pressurizing cavity 9, an elastic body air bag 10, a pulp suction die 11 and a wet blank 7 after pulp suction. The pressurizing cavity 9 is arranged in the extruding die 8 and connected with the elastomer air bag 10, the extruding die 8 is arranged above the pulp absorbing die 11 and forms a bottle cavity with the pulp absorbing die 11, the wet blank 7 after pulp absorption is arranged in the bottle cavity, the elastomer air bag 10 extends into the wet blank arranged in the bottle cavity, and after die assembly, the elastomer bag pressurizes, expands and extrudes the wet blank to be attached to the inner wall of the bottle cavity to form the preformed paper bottle 81. The elastic body bag 10 is an elastic body which can be stretched and contracted, and is formed by pressurizing a mold by inflation, and after the formation is finished, the elastic body bag 10 is taken out by exhausting gas. The wet blank 7 absorbing the pulp is preformed after the elastic body is pressurized in a 'die assembly' state, the pressure of the elastic body air bag is controlled to be 1 kilogram force, the water content of the preformed paper bottle is 40% -50%, and the thickness of the preformed paper bottle is 1.5 mm.
Referring to fig. 5 and 6, which show the structural schematic diagrams of the hot press molding system according to the present invention in the open and closed states, the upper hot press mold 12 is composed of the elastomer air bag 14 resistant to high temperature and high pressure, and the lower hot press mold 13 is composed of 2 mold body portions 92 and a bottle bottom portion 93, and the hot press molding system is composed of the upper hot press mold 12, a pressurizing chamber 91, the elastomer air bag 14, the lower hot press mold 13, and a preformed paper bottle 81. The pressurizing cavity 91 is arranged in the hot-pressing upper die 12 and is connected with the elastomer air bag 14, the hot-pressing upper die 12 is arranged above the hot-pressing lower die 13, forming a bottle cavity with the hot-pressing lower die 13, placing the preformed paper bottle 81 in the bottle cavity, extending the elastomer air bag 14 into the preformed paper bottle placed in the bottle cavity, making the hot-pressing upper die 12 and the hot-pressing lower die 13 of breathable steel, the micro-holes with the diameter of 0.1-0.01mm are arranged on the upper die, after the die is closed, the hot-pressing upper die 12 is inflated with air to press and the integral paper-plastic bottle 15 is integrally formed by the deformation of the elastic body, the plastic bottle is heated to 150 ℃ by a hot-pressing die, the elastomer bag is pressurized to about 5 kilograms of force, redundant moisture is discharged through the micropores of the air-permeable steel, the moisture content of the finished product integral paper-plastic bottle 15 is 3-5%, the thickness is about 1.0mm, and the elastomer air bag 14 is taken out after the forming is finished and the gas is discharged.
Example 3
The structural schematic diagram of the grouting system in the state of die opening and die closing is described according to the attached drawings 1 and 2, the parts marked 1-5 are the structural design of the die which is combined to form the grouting system, the concrete slurry suction system comprises a grouting template 1, a grouting cavity 2 and a slurry suction template 4, the slurry suction template 4 is provided with a concave cavity consistent with the appearance of a bottle, the grouting template 1 is positioned above the concave cavity, the grouting template 1 is connected with a stirring slurry suction device (not shown) in the bottle, the grouting template 1 and the slurry suction template 4 form a bottle cavity, the slurry suction template 4 is composed of slurry suction half templates, and the grouting template 1 is connected with the grouting cavity 2; the grouting cavity is provided with an extension part 21, a grouting pipe hole 3 is formed in the extension part 21, the extension part 21 extends into a concave cavity of the grouting template 4, and a bottle wet blank 7 is formed preliminarily through grouting of the grouting pipe hole 3; the pulp suction template is provided with a pulp suction hole 5 and a pulp suction cavity 6, the pulp suction hole 5 is arranged on the surface of the concave cavity and is connected with the pulp suction cavity 6, the pulp suction hole 5 on the surface of the concave cavity respectively corresponds to a bottle opening, a bottle neck, a bottle body and a bottle bottom of the bottle cavity, the pulp suction hole density of the bottle opening, the bottle neck and the bottle body is greater than that of the bottle bottom, the pulp suction cavity 6 is connected with a vacuum device (not shown), pulp is sprayed to the part of the bottle cavity through the grouting cavity 2 and the grouting hole 3 of the extension part 21 in a mold closing state, the pulp is wood pulp, the wood pulp is uniformly dispersed through a stirring pulp suction device in the bottle, and the pulp sprayed into the bottle cavity is sufficient and uniform; starting a vacuum device (not shown), vacuumizing the pulp suction cavity 6 to enable the paper pulp to be uniformly adsorbed on the surface of the pulp suction mould to form a wet blank 7 after pulp suction, controlling the vacuumizing to be about 0.7Mpa through an electromagnetic valve and a pressure gauge, and controlling the water content of the wet blank to be about 70-80% and the thickness to be 2.5 mm.
According to fig. 3 and 4, the structure of the slurry suction system in the open and closed states is schematically shown. The extrusion system consists of an extrusion die 8, a pressurizing cavity 9, an elastomer water bag 10, a pulp suction die 11 and a wet blank 7 after pulp suction. The pressurizing cavity 9 is arranged in the extruding die 8 and connected with the elastomer water bag 10, the extruding die 8 is arranged above the pulp sucking die 11 and forms a bottle cavity with the pulp sucking die 11, the wet blank 7 after pulp sucking is arranged in the bottle cavity, the elastomer water bag 10 extends into the wet blank arranged in the bottle cavity, and after die assembly, the elastomer water bag pressurizes, expands and extrudes the wet blank to be attached to the inner wall of the bottle cavity to form the preformed paper bottle 81. The elastic body water bag 10 is made of an elastic body which can be stretched, the mold is pressurized by filling water, and after the molding is finished, the elastic body water bag 10 is taken out by discharging water. The pulp-absorbing wet blank 7 is preformed after the elastomer is pressurized in a 'die assembly' state, and the pressure of the elastomer water bag is controlled to be 1 kilogram force, so that the water content of the preformed paper bottle is 40-50%, and the thickness of the preformed paper bottle is 1.5 mm.
Referring to fig. 5 and 6, which show the structural schematic diagrams of the hot press molding system according to the present invention in the open and closed states, the upper hot press mold 12 is composed of the elastomer water bag 14 resistant to high temperature and high pressure, and the lower hot press mold 13 is composed of 2 mold body portions 92 and a bottle bottom portion 93, and the hot press molding system is composed of the upper hot press mold 12, a pressurizing chamber 91, the elastomer water bag 14, the lower hot press mold 13, and a preformed paper bottle 81. The pressurizing cavity 91 is arranged in the hot-pressing upper die 12 and connected with the elastomer water bag 14, the hot-pressing upper die 12 is arranged above the hot-pressing lower die 13 and forms a bottle cavity with the hot-pressing lower die 13, the preformed paper bottle 81 is arranged in the bottle cavity, the elastomer water bag 14 extends into the preformed paper bottle arranged in the bottle cavity, the hot-pressing upper die 12 and the hot-pressing lower die 13 are provided with exhaust grooves, after die assembly is carried out, the hot-pressing upper die 12 is inflated under the condition of die assembly, the integral paper-plastic bottle 15 is integrally formed by deformation of the elastomer, the heating is carried out to 150 ℃ through the hot-pressing die, the pressurization of the elastomer bag is about 5 kilograms force, the water content of the finished integral paper-plastic bottle 15 is 3% -5%, the thickness is about 1.0mm, and the elastomer water.
Example 4
The slurry suction system comprises a grouting template 1, a grouting cavity 2 and a slurry suction template 4, wherein the slurry suction template 4 is provided with a concave cavity consistent with the appearance of a bottle, the grouting template 1 is positioned above the concave cavity, the grouting template 1 and the slurry suction template 4 form a bottle cavity, the slurry suction template 4 consists of a slurry suction half template, and the grouting template 1 is connected with the grouting cavity 2; the grouting cavity preliminarily forms a bottle wet blank 7 in a roller slurry throwing mode; the pulp suction template is provided with a pulp suction hole 5 and a pulp suction cavity 6, the pulp suction hole 5 is arranged on the surface of the concave cavity and is connected with the pulp suction cavity 6, the pulp suction hole 5 on the surface of the concave cavity respectively corresponds to a bottle opening, a bottle neck, a bottle body and a bottle bottom of the bottle cavity, the pulp suction hole density of the bottle opening, the bottle neck and the bottle body is greater than that of the bottle bottom, the pulp suction cavity 6 is connected with a vacuum device (not shown), under a mold closing state, pulp is thrown through the pulp injection cavity 2 to spray pulp to the part of the bottle cavity, the pulp is sugarcane pulp, and the pulp in the bottle cavity is enough and uniform; starting a vacuum device (not shown), vacuumizing the pulp suction cavity 6 to enable the paper pulp to be uniformly adsorbed on the surface of the pulp suction mould to form a wet blank 7 after pulp suction, controlling the vacuumizing to be about 0.7Mpa through an electromagnetic valve and a pressure gauge, and controlling the water content of the wet blank to be about 70-80% and the thickness to be 2.5 mm.
According to fig. 3 and 4, the structure of the slurry suction system in the open and closed states is schematically shown. The extrusion system consists of an extrusion die 8, a pressurizing cavity 9, an elastomer oil bag 10, a slurry suction die 11 and a wet blank 7 after slurry suction. The pressurizing cavity 9 is arranged in the extruding die 8 and connected with the elastomer oil bag 10, the extruding die 8 is arranged above the slurry absorbing die 11 and forms a bottle cavity with the slurry absorbing die 11, the wet blank 7 after slurry absorption is arranged in the bottle cavity, the elastomer oil bag 10 extends into the wet blank arranged in the bottle cavity, and after die assembly, the elastomer bag pressurizes, expands and extrudes the wet blank to be attached to the inner wall of the bottle cavity to form the preformed paper bottle 81. The elastic body oil bag 10 is an elastic body which can be stretched, the pressure molding is carried out on the die by filling oil, and after the molding is finished, the oil is discharged to take out the elastic body oil bag 10. And (3) performing the wet blank 7 absorbing the slurry after the elastomer is pressurized in a 'die assembly' state, and controlling the pressure applied by the elastomer oil bag to be 1 kilogram force so that the water content of the preformed paper bottle is 40-50% and the thickness of the preformed paper bottle is 1.5 mm.
Referring to fig. 5 and 6, which show the structural schematic diagrams of the hot press molding system according to the present invention in the open and closed states, the upper hot press mold 12 is composed of the elastomer oil bag 14 resistant to high temperature and high pressure, and the lower hot press mold 13 is composed of 2 mold body portions 92 and a bottle bottom portion 93, and the hot press molding system is composed of the upper hot press mold 12, the pressurizing cavity 91, the elastomer oil bag 14, the lower hot press mold 13, and the preformed paper bottle 81. The pressurization cavity 91 is arranged in the hot-pressing upper die 12 and is connected with the elastomer oil bag 14, the hot-pressing upper die 12 is arranged above the hot-pressing lower die 13 and forms a bottle cavity with the hot-pressing lower die 13, the preformed paper bottle 81 is arranged in the bottle cavity, the elastomer oil bag 14 extends into the preformed paper bottle arranged in the bottle cavity, after die assembly, the oil is filled and pressed in the hot-pressing upper die 12 under the condition of die assembly to form the integral paper-plastic bottle 15 integrally through elastomer deformation, the integral paper-plastic bottle is heated to 150 ℃ through the hot-pressing die, the pressurization of the elastomer oil bag is about 5 kilograms, redundant water is discharged, the water content of the finished integral paper-plastic bottle 15 is 3% -5%, the thickness is about 1.0mm, and the oil is discharged after the forming to take out the elastomer oil bag 14.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a mould of whole bottle is moulded to paper which characterized in that: the mould comprises a pulp sucking system, an extrusion system and a hot press molding system; the slurry suction system is used for grouting to preliminarily form a wet bottle blank, and the wet bottle blank preliminarily formed by grouting is formed into a wet blank after slurry suction through vacuumizing; the extrusion system is used for forming a preformed paper bottle by extruding an elastomer bag; the hot press molding system is used for forming the integral paper bottle through extrusion of the elastomer bag.
2. The mold of claim 1, wherein: the slurry suction system comprises a grouting template, a grouting cavity and a slurry suction template.
3. The mold of claim 2, wherein: the slurry suction template is provided with a concave cavity with the same shape as the bottle, and the grouting template is positioned above the concave cavity and connected with the grouting cavity; the grouting cavity is provided with an extension part, a grouting pipe hole is formed in the extension part, the extension part extends into a concave cavity of the slurry suction template, and a bottle wet blank is formed preliminarily through grouting of the grouting pipe hole; the slurry suction template is provided with a slurry suction hole and a slurry suction cavity, the slurry suction hole is formed in the surface of the concave cavity and is connected with the slurry suction cavity, the slurry suction cavity is connected with a vacuum device, and a bottle wet blank formed preliminarily by grouting is formed into a wet blank after slurry suction through vacuumizing.
4. The mold of claim 1, wherein: the extrusion system consists of an extrusion die, a pressurization cavity, an elastomer bag, a pulp suction die and a wet blank after pulp suction.
5. The mold of claim 4, wherein: the pressurizing cavity is arranged in the extruding die and connected with the elastomer bag, the extruding die is arranged above the slurry suction die and forms a bottle cavity with the slurry suction die, the wet blank after slurry suction is arranged in the bottle cavity, the elastomer bag extends into the wet blank arranged in the bottle cavity, and after die assembly, the elastomer bag pressurizes, expands and extrudes the wet blank to be attached to the inner wall of the bottle cavity to form the preformed paper bottle.
6. The mold of claim 1, wherein: the hot-press molding system consists of a hot-press upper die, a pressurizing cavity, an elastomer bag, a hot-press lower die and a preformed paper bottle.
7. The mold of claim 6, wherein: the pressurizing cavity is arranged in the hot-pressing upper die and is connected with the elastomer bag, the hot-pressing upper die is arranged above the hot-pressing lower die and forms a bottle cavity with the hot-pressing lower die, the preformed paper bottle is arranged in the bottle cavity, the elastomer bag extends into the preformed paper bottle arranged in the bottle cavity, and after die assembly is carried out, the elastomer bag pressurizes, expands and extrudes the preformed paper bottle to be attached to the inner wall of the bottle cavity to form the integral paper bottle.
8. A bottle produced by the mold of any one of claims 1 to 7, wherein: the bottle is a paper-plastic integral bottle.
9. The bottle of claim 8, wherein: the bottle wall is irregularly shaped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020814443.5U CN212611692U (en) | 2020-05-15 | 2020-05-15 | Paper-plastic integral bottle and forming die |
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| CN202020814443.5U CN212611692U (en) | 2020-05-15 | 2020-05-15 | Paper-plastic integral bottle and forming die |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593615A (en) * | 2020-05-15 | 2020-08-28 | 永发（河南）模塑科技发展有限公司 | Paper-plastic integral bottle, forming die and production process |
| WO2021228262A1 (en) * | 2020-05-15 | 2021-11-18 | 永发（河南）模塑科技发展有限公司 | Pulp-molded integrated bottle, forming mold, apparatus, and production process |
| CN115162058A (en) * | 2022-07-21 | 2022-10-11 | 青岛永发模塑有限公司 | Air bag shaping device for inner cavity of paper pulp molding bottle-shaped container and process method thereof |
-
2020
- 2020-05-15 CN CN202020814443.5U patent/CN212611692U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593615A (en) * | 2020-05-15 | 2020-08-28 | 永发（河南）模塑科技发展有限公司 | Paper-plastic integral bottle, forming die and production process |
| WO2021228262A1 (en) * | 2020-05-15 | 2021-11-18 | 永发（河南）模塑科技发展有限公司 | Pulp-molded integrated bottle, forming mold, apparatus, and production process |
| CN115162058A (en) * | 2022-07-21 | 2022-10-11 | 青岛永发模塑有限公司 | Air bag shaping device for inner cavity of paper pulp molding bottle-shaped container and process method thereof |
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