CN212611695U - Plastic suction mould of paper-plastic integral bottle and integral mould - Google Patents
Plastic suction mould of paper-plastic integral bottle and integral mould Download PDFInfo
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- CN212611695U CN212611695U CN202020813266.9U CN202020813266U CN212611695U CN 212611695 U CN212611695 U CN 212611695U CN 202020813266 U CN202020813266 U CN 202020813266U CN 212611695 U CN212611695 U CN 212611695U
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Abstract
The utility model relates to a plastic uptake mould and whole mould of whole bottle are moulded to paper, plastic uptake mould includes slip casting template, slip casting cavity and inhales the thick liquid template, carries out the slip casting for the position in bottle chamber through the slip casting hole of slip casting cavity and extension, lets the even absorption of paper pulp wet embryo after inhaling the thick liquid mould surface formation through inhaling the thick liquid cavity evacuation.
Description
Technical Field
The utility model relates to a shaping technical field of paper moulding shaping product, in particular to the development of the slip casting suction mould of the 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 plastic suction mould for a paper-plastic integral bottle comprises a grouting template, a grouting cavity and a slurry suction template, 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.
Further, the grouting cavity is connected with a paper pulp pool, and the 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 grouting can be slurry spraying, grouting, stirring and slurry sucking in a bottle or slurry throwing by a roller.
And further, a pulp supplementing device is also arranged, and if a part with uneven pulp exists in the wet blank of the bottle preliminarily formed by grouting through the grouting pipe hole, 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.
A pulp suction process of a paper-plastic integral bottle uses the pulp suction mould, and comprises the following steps:
(1) assembling the slurry suction mold to enable the slurry suction mold 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;
(2) and 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.
A mould for paper-plastic integral bottles comprises the pulp suction mould, an extrusion mould and a hot-pressing forming mould. The slurry suction mould 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 die is used for forming a preformed paper bottle by extruding the elastomer bag; the hot-pressing forming die is used for forming the integral paper bottle through extrusion of the elastomer bag.
The extrusion die consists of an extrusion die, a pressurizing cavity, an elastomer bag, a pulp sucking die and a wet blank after pulp sucking. 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-pressing forming die consists of a hot-pressing upper die, a pressurizing cavity, an elastomer bag, a hot-pressing 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 die and the hot-press forming die may be the same or different.
The hot-pressing forming die is also provided with a hot-pressing device for heating and pressing the die.
The process for molding the integral bottle by using the mold comprises the following steps:
(1) assembling the slurry suction mold to enable the slurry suction mold to be in a mold closing state, and grouting 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;
the grouting in the step (1) can be guniting, grouting, stirring and slurry sucking in a bottle or slurry throwing by a roller.
(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 die, 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 die, 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. And after the molding is finished, discharging the pressurized gas or liquid and taking out the elastomer bag.
The elastomeric bag can apply different pressures according to different requirements of the product.
(4) The preformed paper bottle is transferred to a hot-pressing forming die, the preformed paper bottle is arranged in a bottle cavity, the elastomer bag extends into the preformed paper bottle arranged in the bottle cavity, after die assembly, the elastomer bag is pressurized, expanded and extruded to be pasted on the inner wall of the bottle cavity, and hot-pressing forming is carried out to form the integral paper bottle.
The product has different thickness and water content, such as 3-5% of water content and 1.0mm of thickness. And after the molding is finished, discharging the pressurized gas or liquid and taking out the elastomer bag.
The hot-pressing forming die is heated to 150 ℃ through the hot-pressing die, the pressurization of the elastomer bag is about 5 kilograms of force, and the hot-pressing forming die can be adjusted according to the requirements of products.
Drawings
Fig. 1 is a schematic structural view of a slip casting mold in a mold-opened state according to the present invention;
fig. 2 is a schematic structural view of the grouting mold in a mold closing state according to the present invention;
FIG. 3 is a schematic structural view of the pulp suction mold in a mold-opened state;
fig. 4 is a schematic structural view of the slurry suction mold in a mold closing state according to the present invention;
fig. 5 is a schematic structural view of the hot press molding die of the present invention in the open state;
fig. 6 is a schematic structural view of the hot press mold of the present invention 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 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 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 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 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 pressurization 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 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 air 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, and redundant moisture is discharged through the exhaust grooves, so that the moisture content of the finished integral paper-plastic bottle 15 is 3% -5%, the thickness is about 1.0mm, and the exhaust gas is discharged after.
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 plastic suction mould of whole bottle is moulded to paper which characterized in that: the plastic suction mould comprises a grouting template, a grouting cavity and a slurry suction template; the pulp sucking template is provided with a concave 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.
2. The plastic suction mold of claim 1, wherein: the grouting template and the slurry suction template form a bottle cavity, and the slurry suction template consists of slurry suction half templates.
3. The plastic suction mold of claim 1, wherein: the grouting cavity is connected with the paper pulp tank.
4. The plastic suction mold of claim 1, wherein: and a slurry supplementing device is also arranged for supplementing slurry to the wet blank of the bottle preliminarily formed by grouting through the grouting pipe hole.
5. The plastic suction mold of claim 1, wherein: the pulp sucking 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 sucking holes on the bottle mouth, the bottle neck and the bottle body is greater than that of the pulp sucking holes on the bottle bottom.
6. The utility model provides an integral mould of whole bottle is moulded to paper which characterized in that: the mould comprises a plastic suction mould of the paper-plastic integral bottle of any one of claims 1 to 5.
7. The one-piece mold according to claim 6, wherein: the die further comprises an extrusion die and a hot-press forming die.
8. The unitary mold of claim 7, wherein: the extrusion die consists of an extrusion die, a pressurizing cavity, an elastomer bag, a pulp sucking die and a wet blank after pulp sucking.
9. The unitary mold of claim 7, wherein: the hot-pressing forming die consists of a hot-pressing upper die, a pressurizing cavity, an elastomer bag, a hot-pressing lower die and a preformed paper bottle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020813266.9U CN212611695U (en) | 2020-05-15 | 2020-05-15 | Plastic suction mould of paper-plastic integral bottle and integral mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020813266.9U CN212611695U (en) | 2020-05-15 | 2020-05-15 | Plastic suction mould of paper-plastic integral bottle and integral mould |
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| CN212611695U true CN212611695U (en) | 2021-02-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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