CN104652178A - Large and bulky paper pulp die-pressing process and device - Google Patents
Large and bulky paper pulp die-pressing process and device Download PDFInfo
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- CN104652178A CN104652178A CN201510031989.7A CN201510031989A CN104652178A CN 104652178 A CN104652178 A CN 104652178A CN 201510031989 A CN201510031989 A CN 201510031989A CN 104652178 A CN104652178 A CN 104652178A
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Abstract
The invention relates to a large and bulky paper pulp die-pressing process, which includes the following steps: a pulp box loaded with paper pulp is arranged under a forming unit, a paper pulp agitation mechanism is arranged at the bottom in the pulp box, the recess of a forming female die is upward, and moreover, the forming female die can be driven by a driving mechanism to move down into the pulp box, and thereby is immerged into paper pulp; a vacuumizer is utilized to vacuumize the forming female die, so that a wet green is formed; the forming female die upwardly gets close to a male die, the wet green is transferred, the male die brings the wet green to move onto a shaping unit, and the wet green is heated and shaped. The process disclosed by the invention can prepare bulky and large-sized vegetable fiber die-pressed products, the cost is low, and the rate of finished products is high.
Description
Technical field
The present invention relates to a kind of plant fiber molding technique and equipment thereof, particularly a kind of large-scale thick body pulp molding technique and equipment thereof.
Background technology
Current moulding of plant fibres production line, mainly produces with waste paper and is used for the amortizing packaging material such as small household appliances and egg holder.It adopts traditional papermaking moulding process---and by having vacuum plant, cover the mould of silk screen and sink to adsorption paper slurry in paper pulp pond, after the surface that mould covers silk screen forms slurry embryo, then move on in drying tunnel and be dried to product.This technology is not owing to overcoming the slurry deadweight of embryo and the resistance of slurry, and thick and heavy wet embryo leaves stock tank and will come off on the net from shaping mould, so the product thickness produced is limited, cannot prepare thick body large product.
In order to solve the problem, body lining steel wire being made product had is in mould, and pulp spraying is sprinkled upon on the silk screen mould that is under vacuum state, makes slurry become wet embryo in silk screen mould surface accumulation, then the demoulding after hot-pressing drying.Due in the process of spraying slurry, vacuum space ground connection contacts atmospheric pressure, vacuum power can not do work completely effectively, the stock of equal densities, thickness cannot be obtained, the formed product time is long simultaneously, efficiency is low, defect ware rate is high, cost is high, and product thickness can only reach less than 1.5 millimeters, and full-size can only reach 500 millimeters.
Summary of the invention
The object of this invention is to provide a kind of structure simple, thick body large gauge can be made, molding time is short, production efficiency is high, production cost is low large-scale thick body pulp molding technique and equipment thereof, overcome the deficiencies in the prior art.
Large-scale thick body pulp molding technique of the present invention, step is as follows:
(1), in the below of former arrange and the slurry case of pulp material is housed, the interior side-lower of slurry case is provided with kneading pulper structure, and the recess of molding concave die upwards and come downwards under driving mechanism drives in slurry case, makes molding concave die immerse in pulp material;
(2), utilize vacuum extractor to vacuumize molding concave die, get rid of moisture content, pulp material covered on the silk screen of molding concave die inner surface and form desired thickness;
(3), molding concave die upwards shifts out slurry case under driving mechanism drives, after further dehydration be positioned at the forming convax mould phase matched moulds starched above case, then remove molding concave die to vacuumize, open the vacuum-pumping valve of forming convax mould, make to be adsorbed on forming convax mould at the wet indusium of die internal shaping;
(4), forming convax mould and the wet embryo transferred on forming convax mould to be moved on modular system by transverse moving mechanism and stop vacuumizing; in the sizing die that wet embryo is transferred on modular system; then forming convax mould return; punch of simultaneously shaping moves to above sizing die thereupon; sizing die and wet embryo move; heating, drying sizing is carried out to wet embryo with the sizing punch matched moulds vacuumized of top; after sizing, sizing die moves down, and sizing punch to move to above conveyer belt with the goods after sizing and removes the vacuum demoulding and spreads out of.
Large-scale thick body pulp molding technique equipment of the present invention, comprises and is arranged on former in frame and modular system.
The molding concave die establishing the slurry case of kneading pulper structure, band molding concave die vacuum tank in former has, the forming convax mould of band forming convax mould vacuum tank matched with molding concave die, molding concave die connects the driving mechanism driving molding concave die to be elevated.
Modular system has the sizing die of band sizing die heating plate, sizing die connects the driving mechanism driving the lifting of sizing die; The sizing punch being with shape punch heating plate and punch vacuum tank of shaping is furnished with mutually with sizing die.
Described former frame is fixed with shaping mould lower supporting plate, shaping mould lower supporting plate is fixed with shaping mould upper backup pad by shaping mould column, shaping mould upper backup pad is furnished with shaping mould guide pillar moving up and down, and described molding concave die is arranged on the lower end of shaping mould guide pillar by shaping mould lower shifting board.
The driving mechanism of described driving molding concave die lifting is the shaping mould hydraulic cylinder connected with hydraulic drive mechanism, the termination of shaping mould hydraulic cylinder is fixedly connected with described shaping mould upper shifting board, and the piston rod end matched with shaping mould hydraulic cylinder is fixedly connected with shaping mould upper backup pad.
The recess of described molding concave die upwards.
Described modular system is that frame is provided with stock mould bottom plate, the top of stock mould bottom plate is fixedly connected with stock mould upper mounted plate by sizing column, stock mould movable plate is furnished with mutually with sizing column, be connected to the stock mould hydraulic cylinder driving the lifting of stock mould movable plate below stock mould movable plate, described sizing die is arranged on above stock mould movable plate.
Stock mould upper mounted plate is fixed with the track of horizontally set, and described forming convax mould vacuum tank, sizing punch vacuum tank and described track match, between described forming convax mould vacuum tank, sizing punch vacuum tank, be provided with connector.
Described sizing punch vacuum tank connects transversal driving mechanism.
Described each vacuum tank is all connected with vacuum extractor by flexible pipe.
Described transversal driving mechanism is on stock mould upper mounted plate, be fixed with the transverse shifting hydraulic cylinder connected with hydraulic drive mechanism, and the piston rod matched with transverse shifting hydraulic cylinder is connected by the termination of connecting plate with sizing punch vacuum tank.
Large-scale thick body pulp molding technique equipment of the present invention, due to shaping mould recess upwards, during vacuum forming, whole die is immersed in paper pulp, the vacuum tank of molding concave die and atmospheric isolation, vacuum power is played one's part to the full, effectively overcomes by suction paper pulp obscission when moving up, formation wet embryo thickness obviously increase, can produce the plant fiber molding product of more than at least 2 millimeters, the specification of product can correspondingly increase; Because entirety is closed in paper pulp pond, so each point vacuum power is equal in mold cavity, no matter the body of product during molding concave die absorption paper pulp, the global density of product is identical, thickness uniformity, defect ware rate obviously reduces, and reduces production cost simultaneously.The enforcement of this technology and equipment, adds the kind of plant-fiber product, has widened the Application Areas in market, has improved the technical merit of the industry.
Accompanying drawing explanation
Fig. 1 is the structural representation of large-scale thick body pulp molding technique equipment of the present invention;
Fig. 2 is that schematic diagram is looked on the right side shown in Fig. 1;
Fig. 3 is the structural representation of molding concave die in the present invention.
Detailed description of the invention
Large-scale thick body pulp molding processing step of the present invention is as follows:
(1), in the below of former arrange and the slurry case of pulp material is housed, the interior side-lower of slurry case is provided with kneading pulper structure, and the recess of molding concave die upwards and come downwards under driving mechanism drives in slurry case, makes molding concave die immerse in pulp material;
(2), utilize vacuum extractor to vacuumize molding concave die, get rid of moisture content, pulp material covered on the silk screen of molding concave die inner surface and form desired thickness;
(3), molding concave die upwards shifts out slurry case under driving mechanism drives, after further dehydration be positioned at the forming convax mould phase matched moulds starched above case, then remove molding concave die to vacuumize, open the vacuum-pumping valve of forming convax mould, make to be adsorbed on forming convax mould at the wet indusium of die internal shaping;
(4), forming convax mould and the wet embryo transferred on forming convax mould to be moved on modular system by transverse moving mechanism and stop vacuumizing; in the sizing die that wet embryo is transferred on modular system; then forming convax mould return; punch of simultaneously shaping moves to above sizing die thereupon; sizing die and wet embryo move; heating, drying sizing is carried out to wet embryo with the sizing punch matched moulds vacuumized of top; after sizing, sizing die moves down; sizing punch to move to above conveyer belt with the goods after sizing and removes the vacuum demoulding, utilizes conveyer belt to spread out of.
As shown in Figure 1, 2: large-scale thick body pulp molding technique equipment of the present invention, comprises frame 1, frame 1 is provided with former and modular system.
Wherein former comprises the slurry case 32 being arranged on frame 1 bottom, is provided with gear type kneading pulper structure 15 in slurry case 32 inside bottom.Frame 1 is fixed with shaping mould lower supporting plate 6, shaping mould lower supporting plate 6 is fixed with shaping mould upper backup pad 8 by four shaping mould columns 7, shaping mould lower supporting plate 6 and shaping mould upper backup pad 8 arranged in parallel.Shaping mould upper backup pad 8 is furnished with four shaping mould guide pillars 5 moving up and down, and the lower end of shaping mould guide pillar 5 is fixed with shaping mould lower shifting board 2, and the upper end of shaping mould guide pillar 5 is fixed with shaping mould upper shifting board 12.Shaping mould lower shifting board 2 and shaping mould upper shifting board 12 arranged in parallel.Molding concave die 4 is arranged on shaping mould lower shifting board 2, and in other words, molding concave die 4 is arranged on the lower end of shaping mould guide pillar 5 by shaping mould lower shifting board 2.There is molding concave die vacuum tank 3 at the back side (below) of molding concave die 4, and molding concave die vacuum tank 3 is connected with vacuum extractor by die vacuum-pumping tube 14.
The driving mechanism driving molding concave die 4 to be elevated is the shaping mould hydraulic cylinder 13 connected with hydraulic drive mechanism, the termination of shaping mould hydraulic cylinder 13 is fixedly connected with shaping mould upper shifting board 12, and the piston rod end matched with shaping mould hydraulic cylinder 13 is fixedly connected with shaping mould upper backup pad 8.
As shown in Figure 3: the recess of molding concave die 4 upwards, molding concave die 4 is processed with multiple through hole 31, is inside lined with silk screen layer 30.
Be furnished with molding concave die 4 forming convax mould 9 being with forming convax mould vacuum tank 10 mutually, forming convax mould vacuum tank 10 is located at forming convax mould 9 back side (above), and forming convax mould vacuum tank 10 is connected with vacuum extractor by punch vacuum-pumping tube 11.The structure of forming convax mould 9 is identical with molding concave die 4, just mutually forms punch-die, is namely just clamped in the wet embryo that molding concave die 4 is formed after matched moulds.
As shown in Figure 1, 2: modular system is included in frame 1 and is provided with stock mould bottom plate 17, stock mould bottom plate 17 is connected with stock mould upper mounted plate 25 by four sizing columns 22, and sizing column 22 is furnished with stock mould movable plate 18.The stock mould hydraulic cylinder 16 connected with hydraulic drive mechanism is housed between stock mould bottom plate 17 and frame 1, and the piston rod end matched with stock mould hydraulic cylinder 16 connects with stock mould movable plate 18.Sizing die 21 is arranged on stock mould movable plate 18, is provided with sizing die heating plate 19 at the back side (below) of sizing die 21.
Be furnished with sizing die 21 the sizing punch 27 being with punch vacuum tank 28 of shaping mutually, sizing punch vacuum tank 27 is located at sizing punch 27 back side (above), and sizing punch vacuum tank 28 is connected with vacuum extractor by vacuum-pumping tube.Sizing die 21 and sizing punch 27 form punch-die, can clamp the wet embryo that molding concave die 4 is shaping during matched moulds.
Be fixed with the track 23 of horizontally set in the bottom of stock mould upper mounted plate 25, forming convax mould vacuum tank 10, sizing punch vacuum tank 28 match with track 23, namely on track 23 slidably.Connector 33 is provided with, to ensure forming convax mould vacuum tank 10, the synchronous slip on track 23 of sizing punch vacuum tank 28 between forming convax mould vacuum tank 10, sizing punch vacuum tank 28.
On stock mould upper mounted plate 25, be laterally fixed with the transverse shifting hydraulic cylinder 26 connected with hydraulic drive mechanism, the piston rod matched with transverse shifting hydraulic cylinder 26 is connected with sizing punch vacuum tank 28 by connecting plate 24.During 26 action of transverse shifting hydraulic cylinder, forming convax mould vacuum tank 10, sizing punch vacuum tank 28 and sizing punch 21 and forming convax mould 9 can be driven to slide along track 23 simultaneously.
Above-mentioned moulding convex-concave die is identical with the structure of sizing punch-die and vacuum tank, and inside establish silk screen layer, there is through hole centre, and each vacuum tank is all connected with vacuum extractor by the vacuum-pumping tube of soft body structure.Each hydraulic cylinder also can replace with the cylinder band connected with pneumatic means.
The course of work is as follows:
Plant fiber pulp poured in slurry case 32, slurry rabbling mechanism is opened and all the time in operation, is prevented slurries from precipitating.Shaping mould hydraulic cylinder 13 action, drive shaping mould upper shifting board 12, shaping mould guide pillar 5, shaping mould lower shifting board 2 and molding concave die 4 move down, molding concave die 4 is all immersed in pulp liquor, molding concave die vacuum tank starts to vacuumize, discharge slurry moisture, pulp material is attracted on the silk screen layer 30 in molding concave die 4, form wet embryo, when wet embryo reaches desired thickness, shaping mould hydraulic cylinder 13 drives above-mentioned parts to move simultaneously, molding concave die 4 is made to shift out slurry liquid level, when wet embryo in die 4 to be formed reaches required moisture content, molding concave die 4 moves and with forming convax mould 9 matched moulds of top, and molding concave die vacuum tank stops vacuumizing, negative pressure is removed after opening compressed gas valve, forming convax mould vacuum tank 10 starts to take out true chamber simultaneously, wet embryo is transferred on forming convax mould 9.Molding concave die 4 is descending to be entered in pulp material again, for next time ready.Afterwards, transverse shifting hydraulic cylinder 26 action, drive forming convax mould vacuum tank 10, forming convax mould 9, sizing punch vacuum tank 28, sizing punch 27 to move to left on track 23, forming convax mould 9 is positioned at above sizing die 21, and forming convax mould 27 is positioned at above conveyer belt 20.Then forming convax mould vacuum tank 10 stops vacuumizing, and namely removes negative pressure, is transferred to by wet embryo on sizing die 21.Transverse shifting hydraulic cylinder 26 action, drives forming convax mould vacuum tank 10, forming convax mould 9, sizing punch vacuum tank 28, sizing punch 27 to retract position track 23 is upper right.Sizing die 21 moves up under the drive of stock mould hydraulic cylinder 16, and with sizing punch 27 matched moulds, and carry out heat-shaping by type die heating plate 19 and sizing punch heating plate 29 pairs of stocks, punch vacuum tank 28 of now shaping is evacuated, and discharges moisture.After heat-shaping, sizing die 21 moves down under stock mould hydraulic cylinder 16 drives, and the goods after sizing are attracted on sizing punch 27.Repeat action, when sizing punch 27 and forming convax mould 9 move to left position, sizing punch vacuum tank 28 stops vacuumizing, and remove negative pressure, the goods of having shaped fall on conveyer belt 20 and are sent out.By that analogy, circulation is produced.
Claims (3)
1. a large-scale thick body pulp molding technique, is characterized in that: step is as follows:
(1), in the below of former arrange and the slurry case of pulp material is housed, the interior side-lower of slurry case is provided with kneading pulper structure, and the recess of molding concave die upwards and come downwards under driving mechanism drives in slurry case, makes molding concave die immerse in pulp material;
(2), utilize vacuum extractor to vacuumize molding concave die, get rid of moisture content, pulp material covered on the silk screen of molding concave die inner surface and form desired thickness;
(3), molding concave die upwards shifts out slurry case under driving mechanism drives, after further dehydration be positioned at the forming convax mould phase matched moulds starched above case, then remove molding concave die to vacuumize, open the vacuum-pumping valve of forming convax mould, make to be adsorbed on forming convax mould at the wet indusium of die internal shaping;
(4), forming convax mould and the wet embryo transferred on forming convax mould to be moved on modular system by transverse moving mechanism and stop vacuumizing; in the sizing die that wet embryo is transferred on modular system; then forming convax mould return; punch of simultaneously shaping moves to above sizing die thereupon; sizing die and wet embryo move; heating, drying sizing is carried out to wet embryo with the sizing punch matched moulds vacuumized of top; after sizing, sizing die moves down, and sizing punch to move to above conveyer belt with the goods after sizing and removes the vacuum demoulding and spreads out of.
2. a large-scale thick body pulp molding technique equipment according to claim 1, comprises and is arranged on former in frame (1) and modular system;
The molding concave die (4) establishing the slurry case (32) of kneading pulper structure (15), band molding concave die vacuum tank (3) in former has, the forming convax mould (9) of band forming convax mould vacuum tank (10) matched with molding concave die (4), molding concave die (4) connects the driving mechanism that driving molding concave die (4) is elevated;
Modular system has the sizing die (21) of band sizing die heating plate (19), sizing die (21) connects the driving mechanism driving sizing die (21) to be elevated; The sizing punch (27) being with shape punch heating plate (29) and punch vacuum tank (28) of shaping is furnished with mutually with sizing die (21);
It is characterized in that: described former is that frame (1) is fixed with shaping mould lower supporting plate (6), shaping mould lower supporting plate (6) is fixed with shaping mould upper backup pad (8) by shaping mould column (7), shaping mould upper backup pad (8) is furnished with shaping mould guide pillar (5) moving up and down, and described molding concave die (4) is arranged on the lower end of shaping mould guide pillar (5) by shaping mould lower shifting board (2);
The driving mechanism that described driving molding concave die (4) is elevated is the shaping mould hydraulic cylinder (13) connected with hydraulic drive mechanism, the termination of shaping mould hydraulic cylinder (13) is fixedly connected with described shaping mould upper shifting board (12), and the piston rod end matched with shaping mould hydraulic cylinder (13) is fixedly connected with shaping mould upper backup pad (8);
The recess of described molding concave die (4) upwards;
Described modular system is that frame (1) is provided with stock mould bottom plate (17), the top of stock mould bottom plate (17) is fixedly connected with stock mould upper mounted plate (25) by sizing column (22), stock mould movable plate (18) is furnished with mutually with sizing column (22), stock mould movable plate (18) is connected to the stock mould hydraulic cylinder (16) driving stock mould movable plate (18) to be elevated below, and described sizing die (21) is arranged on above stock mould movable plate (18);
Stock mould upper mounted plate (25) is fixed with the track (23) of horizontally set, described forming convax mould vacuum tank (10), sizing punch vacuum tank (28) match with described track (23), between described forming convax mould vacuum tank (10), sizing punch vacuum tank (28), be provided with connector (33);
Described sizing punch vacuum tank (28) connects transversal driving mechanism;
Described each vacuum tank is all connected with vacuum extractor by flexible pipe.
3. large-scale thick body pulp molding technique equipment according to claim 2, it is characterized in that: described transversal driving mechanism is on stock mould upper mounted plate (25), be fixed with the transverse shifting hydraulic cylinder (26) connected with hydraulic drive mechanism, the piston rod matched with transverse shifting hydraulic cylinder (26) is connected by the termination of connecting plate (24) with sizing punch vacuum tank (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510031989.7A CN104652178B (en) | 2015-01-22 | 2015-01-22 | Large and bulky paper pulp die-pressing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510031989.7A CN104652178B (en) | 2015-01-22 | 2015-01-22 | Large and bulky paper pulp die-pressing device |
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| CN104652178A true CN104652178A (en) | 2015-05-27 |
| CN104652178B CN104652178B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510031989.7A Active CN104652178B (en) | 2015-01-22 | 2015-01-22 | Large and bulky paper pulp die-pressing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930200A (en) * | 2018-07-18 | 2018-12-04 | 浙江家得宝科技股份有限公司 | Disposable fibrous tableware moulding equipment and technique |
| CN112796162A (en) * | 2020-12-23 | 2021-05-14 | 重庆工商大学 | Art paper preparation facilities |
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| CN203065897U (en) * | 2012-12-19 | 2013-07-17 | 杭州欧亚环保工程有限公司 | Rollover type pulp absorbing molding forming machine |
| CN203238497U (en) * | 2013-05-09 | 2013-10-16 | 张宝华 | Full-automatic pulp molding four-work-station integration equipment |
| CN103526649A (en) * | 2013-05-09 | 2014-01-22 | 张宝华 | Full-automatic molded pulp two-station integrated device and production process thereof |
| CN204023314U (en) * | 2013-12-27 | 2014-12-17 | 张宝华 | Full-automatic pulp-molding two station integrated equipment |
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2015
- 2015-01-22 CN CN201510031989.7A patent/CN104652178B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432240Y (en) * | 2000-07-19 | 2001-05-30 | 杨培泉 | Full-automatic pulp moulding multifunctional combination machine |
| CN2630300Y (en) * | 2003-08-14 | 2004-08-04 | 郑天波 | Fully-automatic pulp moulding-shaping machine |
| KR100427604B1 (en) * | 2003-11-22 | 2004-04-28 | 이범우 | Pulp Mold Machine |
| CN103015273A (en) * | 2012-12-19 | 2013-04-03 | 杭州欧亚环保工程有限公司 | Vegetable fiber molded product full-automatic manufacturing method and molding and trimming integrated machine |
| CN203065897U (en) * | 2012-12-19 | 2013-07-17 | 杭州欧亚环保工程有限公司 | Rollover type pulp absorbing molding forming machine |
| CN203238497U (en) * | 2013-05-09 | 2013-10-16 | 张宝华 | Full-automatic pulp molding four-work-station integration equipment |
| CN103526649A (en) * | 2013-05-09 | 2014-01-22 | 张宝华 | Full-automatic molded pulp two-station integrated device and production process thereof |
| CN204023314U (en) * | 2013-12-27 | 2014-12-17 | 张宝华 | Full-automatic pulp-molding two station integrated equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930200A (en) * | 2018-07-18 | 2018-12-04 | 浙江家得宝科技股份有限公司 | Disposable fibrous tableware moulding equipment and technique |
| CN108930200B (en) * | 2018-07-18 | 2020-07-07 | 浙江家得宝科技股份有限公司 | Disposable fiber tableware forming equipment and process |
| CN112796162A (en) * | 2020-12-23 | 2021-05-14 | 重庆工商大学 | Art paper preparation facilities |
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| Publication number | Publication date |
|---|---|
| CN104652178B (en) | 2017-02-22 |
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