CN1360109A - Method and mould for producing paper pulp moulded products - Google Patents
Method and mould for producing paper pulp moulded products Download PDFInfo
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- CN1360109A CN1360109A CN 00136002 CN00136002A CN1360109A CN 1360109 A CN1360109 A CN 1360109A CN 00136002 CN00136002 CN 00136002 CN 00136002 A CN00136002 A CN 00136002A CN 1360109 A CN1360109 A CN 1360109A
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Abstract
A process for producing moulded paper pulp product includes breaking raw material, removing sand, grinding to obtain paper pulp, feeding it in pulp pool, putting a transfer mould in a vacuum adsorption case, putting the case in said pulp pool, vacuum adsorption, press drying whille shaping and demoulding. Its mould structurally is characterized by that its lower mould is linked with its support plate, the inner cavity of said lower mould is communicated with vacuum box, its upper mould linked to its bottom plate has a washer connected to demoulding unit, said upper and lower moulds are communicated with heater, and a transfer mould is in said lower mould.
Description
The invention belongs to a kind of production method and pulp molding die of production method and mould, particularly a kind of paper pulp moulding product of product.Be mainly used in the moulded paper pulp product of producing tubular or approximate tubular.
" paper mould " is that new environmental protection of rising one of is produced, paper mould production at present mainly is to apply on mould with wire netting, by preformed behind the vacuum suction slurry, entering after the wet demoulding of moulding that the drying box inner drying becomes product or be dried to moisture content is the dry forming of finalizing the design once more behind 30% the wet base, and then cuts edge.The used mould of this method can only be produced as products such as egg holder, disposable snack box, back yard industry packing materials, because the shortcoming of forming technique and ejection technique can not be produced tubular or be similar to tubular products, as yarn tube.It is Wrapping formed that present yarn tube made of paper all adopts cardboard to add glue, cost height, complex process.
The purpose of this invention is to provide a kind of tubular or be similar to the method and the pulp molding die simple in structure, easy to operate, that produce the tubular moulded paper pulp product of the paper pulp moulding product of tubular, to fill up the blank that the tubular moulded paper pulp product is produced.
Technical solution of the present invention is: a kind of production method of paper pulp moulding product is characterized in that comprising the steps:
A. with raw material pulverizing, desanding, milled processed, make moisture at the paper pulp of 85-97% and put into reserve pit;
The transfer mould that b. will have the metallic plate making in the hole of arranging is in length and breadth inserted in the vacuum adsorption box, and integral body is put into reserve pit;
C. vacuum suction;
D. compaction drying moulding;
E. the demoulding.
A kind of pulp molding die, it is characterized in that: counterdie 6 joins with counterdie support plate 8, the inner chamber of counterdie 6 and vacuum tank 15 join, counterdie 6 inboards vertically are provided with groove 18, the patrix 5 that matches with counterdie 6 joins with last baffle plate 3, is with extrusion packing ring 11 on the patrix 5, and extrusion packing ring 11 connects stripper apparatus, patrix 5 all joins with heater with counterdie 6, is furnished with the transfer mould in counterdie 6.
Described transfer mould is a board making, the hole of which is provided with vertically, laterally arranging in order.
Described stripper apparatus structure is: extrusion packing ring 11 connects extrusion nail 17, and the top of extrusion nail 17 leans on ejecting plate 2 bottom surfaces of being in prison, and extrusion plate 2 joins with extrusion bar 1.
Described heater is heating tube 10, heating plate 9.
The described baffle plate 3 of going up connects die-cushion plate 12, and upper die plate 12 connects mould support plate 4, thereby the top of patrix 5 is sandwiched between upper die plate 12 and the patrix support plate 4 and is fixed on the baffle plate 3.
Described counterdie 6 is along the center line separated into two parts, and side taps into out device.
Described in-out apparatus is a cylinder system.
Described transfer mould is along the center line separated into two parts, by jig combination or separation.
The present invention compared with prior art has following advantage: filled up the blank that can not produce the moulded paper pulp product of tubular at present, owing to adopt board making with holes to shift mould, die body is well-pressed, the easy demoulding of goods, realize the typing of paper pulp moulding product with the utility model, can produce the strong pulp moulding article of complicated geometirc physiques such as tubular fast, can Development and Production go out yarn axis, series of products such as dixie cup, also can be used for the production of disposable snack box, mess tin with its production can have heat insulation base, body is attractive in appearance, intensity height, and the operation of need not cutting edge.The present invention is improved the paper mould technology.
Below in conjunction with the drawings and the specific embodiments the present invention is further described:
Fig. 1 is the structural representation of the specific embodiment of the invention;
Fig. 2 is the front view of counterdie 6 in the specific embodiment of the invention;
Fig. 3 is a upward view shown in Figure 2;
Fig. 4 is a B-B partial sectional view shown in Figure 3.
Earlier finished paper pulpboard or waste paper or waste paperboard being put into hydrabrusher pulverizes; Raw material after pulverizing is input to by stock pump grinds to form the paper pulp of moisture in defibrination sand removing machine or the mill at 96 (90-97) %; Paper pulp is injected into the storage that to stir with in the pond; To shift mould and insert in the vacuum adsorption box, and vacuum adsorption box will be sent in the reserve pit, the absorption slurry of limiting the quantity of, absorption thickness defines with adsorption time; The transfer mould that absorption is good places in the fixed mould on the hydraulic press and pressurizes, and handles and make it setting through heating system on the mould and forced drainage gas extraction system; The product that taking-up is moulded is peeled off the transfer mould, formed product.
As shown in the figure: 6 is counterdie, and counterdie 6 is made into two parts, promptly is divided into A, B two bodies (referring to Fig. 3) along center line.The following termination counterdie support plate 8 of counterdie 6 is inlaid with draining mandrel 7 in the counterdie support plate 8, draining mandrel 7 is provided with group hole.On counterdie 6 madial walls are vertical, be provided with groove 18 (referring to Fig. 3), 0.5 millimeter of its width, 1 millimeter of the degree of depth.By the group hole on groove 18, the draining mandrel 7 inner chamber of counterdie 6 and vacuum chamber 15 are joined.Group's bore dia on the described draining mandrel 7 is 2 millimeters, evenly distributes.Can be provided with a thin metallic sieve above the draining mandrel 7.Be provided with counterdie backing plate 13 between vacuum chamber 15 and the counterdie support plate 8, counterdie support plate 8, counterdie backing plate 13, vacuum chamber 15 fixed with bolt.Between counterdie backing plate 13 and vacuum chamber 15, be provided with sealing gasket 16.
The top of patrix 5 is provided with seam, and is sandwiched between patrix support plate 4 and the upper die plate 12, and patrix support plate 4, upper die plate 12, last baffle plate 3 are all with bolting together.In last baffle plate 3, be inlaid with a mobilizable extrusion plate 2, extrusion plate 2 is fixedlyed connected with extrusion bar 1, end face with extrusion nail 17 below the extrusion plate 2 contacts, and the extrusion packing ring 11 on extrusion nail 17 passes upper die plate 12, patrix support plate 4 and is enclosed within patrix 5 is threaded.
As shown in Figure 1: present embodiment is to adopt double mould to be provided with, from Fig. 1, about row's counterdie 6 is respectively arranged because each mould is to be divided into two bodies along center line, its inside part be A part, Outboard Sections be the B part all with counterdie side plate 19 bolting.Be provided with electric hot plate 9 between counterdie 6 and the counterdie side plate 19.The counterdie side plate 19 and counterdie limit base plate 20 bolting in the outside are provided with thermal insulation board 14 between the two.Counterdie limit base plate 20 is fixedlyed connected with the termination of guide rod 25 with the piston rod 24 on the oil cylinder 23, is provided with at interval.Guide rod 25 matches with seat 26, and seat 26 is bolted on the counterdie support plate 8.Oil cylinder 23 is bolted on the counterdie support plate 8.
Patrix 5 inboards are provided with electrothermal tube 10.
Described transfer mould is that the metallic plate in the longitude and latitude that adopts steel or iron or copper or aluminium etc. to stamp out 1 millimeter of spacing (0.5-2 millimeter) hole of arranging is made, thickness of slab 2 (0.2-2) millimeter, 0.3 millimeter in aperture (0.2-0.5 millimeter), this metallic plate is struck out shape of product, product is that the round platform body that is similar to tubular is a yarn tube in the present embodiment, therefore patrix 5 profiles, counterdie 6 inner chambers and transfer mould are truncated conical shape, 50 millimeters of outside diameters, 28.6 millimeters of end diameters, 175 millimeters of the height between the round platform top and bottom.In order to cooperate with counterdie 6, conveniently stripped, shift mould and also be made into the two parts that separate along center line, promptly strike out the transfer mold of two halves unification, make up with jig.
To go up earlier during installation on the upper table 21 that baffle plate 3 is fixed by bolts to hydraulic press, the base plate 22 of vacuum tank 15 is bolted on the lower table of hydraulic press.Electrothermal tube 10, electric hot plate 9 join with temperature control equipment.The inner chamber and the vacuum plant of vacuum tank 15 join.Oil cylinder 23 joins with hydraulic system.
The course of work is as follows: will shift mould earlier and put into vacuum equipment, again its integral body being put into slurry pool vacuumizes, control time makes the quantitative pulp material of absorption on this transfer mould, the transfer mould that applies pulp material is inserted in the counterdie 6, the control hydraulic means makes piston rod 24 drive counterdie limit base plate 20, counterdie side plate 19 merges to the inside, and 6 liang of bodies of counterdie are merged.The upper table 21 that drives hydraulic press again moves down, and patrix 5 is pressed in the counterdie 6, and the moisture content that shifts the mould spreading mass is extruded groove 18 from counterdie 6 inboards, group's orifice flow on the draining mandrel 7 to vacuum tank 15, again by vacuum plant sucking-off in vacuum tank 15.Electric hot plate 9, electrothermal tube 10 heat simultaneously at this moment, play desiccation.The operating temperature of mould is controlled at 140 ℃ (130 ℃-180 ℃).Keep after 6 (5-15) minutes, hydraulic system drives oil cylinder 23 actions, make piston rod 24, counterdie limit base plate 20, counterdie side plate 19 drive counterdies 6 the outside half to two side shiftings, the upper table 21 that drives hydraulic press moves up, and baffle plate 3 is gone up in drive, upper die plate 12, patrix support plate 4, and patrix 5 rises, at this moment patrix 5 is together with compressing formed product thereon and shifting mould and rise, pawn rod 1 top when being collided, extrusion plate 2 moves down the distance in a gap 27 with respect to last baffle plate 3, and collision extrusion nail 17 promotion extrusion packing rings 11 relative patrixes 5 move down, to be fastened on the formed product demoulding on the patrix 5 simultaneously, jig separately shifts mould, at last formed product is taken out, finish a process.Repeat said process once more, carry out next working cycles and get final product.
Claims (9)
1. the production method of a paper pulp moulding product is characterized in that comprising the steps:
A. with raw material pulverizing, desanding, milled processed, make moisture at the paper pulp of 85-97% and put into reserve pit;
The transfer mould that b. will have the metallic plate making in the hole of arranging is in length and breadth inserted in the vacuum adsorption box, and integral body is put into reserve pit;
C. vacuum suction;
D. compaction drying moulding;
E. the demoulding.
2. pulp molding die, it is characterized in that: counterdie (6) connects with counterdie support plate (8), the inner chamber of counterdie (6) and vacuum tank (15) join, counterdie (6) inboard vertically is provided with groove (18), the patrix (5) that matches with counterdie (6) joins with last baffle plate (3), is with extrusion packing ring (11) on the patrix (5), and extrusion packing ring (11) connects stripper apparatus, patrix (5) all joins with heater with counterdie (6), is furnished with the transfer mould in counterdie (6).
3. pulp molding die according to claim 2 is characterized in that: described transfer mould is a board making, the hole of which is provided with vertically, laterally arranging in order.
4. the described pulp molding die of claim 3, it is characterized in that: described stripper apparatus structure is: extrusion packing ring (11) connects extrusion nail (17), and the top of extrusion nail (17) leans on ejecting plate under detention (2) bottom surface, and extrusion plate (2) joins with extrusion bar (1).
5. the described pulp molding die of claim 4, it is characterized in that: described heater is heating tube (10), heating plate (9).
6. pulp molding die according to claim 5, it is characterized in that: the described baffle plate (3) of going up connects die-cushion plate (12), upper die plate (12) connects mould support plate (4), the top of patrix (5) be sandwiched in upper die plate (12) and patrix support plate (4) thus between be fixed on the baffle plate (3).
7. according to the described pulp molding die of claim 6, it is characterized in that: described counterdie (6) is along the center line separated into two parts, and side taps into out device.
8. according to the described pulp molding die of claim 7, it is characterized in that: described in-out apparatus is a cylinder system.
9. pulp molding die according to claim 8 is characterized in that: described transfer mould is along the center line separated into two parts, by jig combination or separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136002 CN1360109A (en) | 2000-12-18 | 2000-12-18 | Method and mould for producing paper pulp moulded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136002 CN1360109A (en) | 2000-12-18 | 2000-12-18 | Method and mould for producing paper pulp moulded products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1360109A true CN1360109A (en) | 2002-07-24 |
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ID=4597010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00136002 Pending CN1360109A (en) | 2000-12-18 | 2000-12-18 | Method and mould for producing paper pulp moulded products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1360109A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226323A (en) * | 2011-05-20 | 2011-10-26 | 界首市曙光包装材料有限公司 | Technique for producing packaging material from waste paper |
| CN102463708A (en) * | 2010-11-05 | 2012-05-23 | 伍强 | Production method for environment-friendly paper product |
| CN113272495A (en) * | 2019-01-03 | 2021-08-17 | 赛尔怀斯公司 | Pickup press apparatus and method for producing 3D molded products from pulp slurry |
-
2000
- 2000-12-18 CN CN 00136002 patent/CN1360109A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463708A (en) * | 2010-11-05 | 2012-05-23 | 伍强 | Production method for environment-friendly paper product |
| CN102226323A (en) * | 2011-05-20 | 2011-10-26 | 界首市曙光包装材料有限公司 | Technique for producing packaging material from waste paper |
| CN113272495A (en) * | 2019-01-03 | 2021-08-17 | 赛尔怀斯公司 | Pickup press apparatus and method for producing 3D molded products from pulp slurry |
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