CN109706795A - A kind of two-sided high glossy paper pulp moulding product formation system and forming method - Google Patents
A kind of two-sided high glossy paper pulp moulding product formation system and forming method Download PDFInfo
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- CN109706795A CN109706795A CN201910045484.4A CN201910045484A CN109706795A CN 109706795 A CN109706795 A CN 109706795A CN 201910045484 A CN201910045484 A CN 201910045484A CN 109706795 A CN109706795 A CN 109706795A
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Abstract
The invention discloses a kind of two-sided high glossy paper pulp moulding product formation systems, successively include the midge mold for being respectively provided with the front type chamber and reverse side type chamber of same layered product by sequencing prepared by moulded paper pulp product；Hot pressing die includes the hot pressing upper mold and hot pressing lower die of corresponding midge mold, and the contact surface of hot pressing upper mold and hot pressing lower die and embryo material to be extruded is highlight surface；Hot pressing upper mold can move up and down along the vertical direction, and hot pressing lower die can move left and right in the horizontal direction, when be moved to above and below hot pressing upper mold to it is corresponding when hot-pressing processing.The object of the present invention is to provide a kind of thickness is uniform, the formation system of two-sided high glossy paper pulp moulding product；Obtain that thickness is uniform using above-mentioned formation system the present invention also provides a kind of simultaneously, layered product forming method of the whole high smooth without matte, method is simple to operation, reduces the equipment forming moving time, improves the cycle period that equipment prepares moulding article.
Description
Technical field
The present invention relates to molding manufacture technology fields, and in particular to a kind of two-sided high glossy paper pulp moulding product molding system
System and forming method.
Background technique
Paper mould is also referred to as " three-dimensional paper technology ", with vegetable-fibre slurry (bamboo pulp, wood unlike traditional papermaking
Slurry, cane syrup, reed, stalk etc.), by shaping machine, by certain pressure on specific midge shaping mould mold,
Temperature is dehydrated paper pulp fiber, is compression molded into a kind of technique of pulp product currently, traditional paper pulp forming technique, because of technology, if
Standby, the limitation of the various aspects such as raw material, product is all extensive structure, but with industry chain upgrade, consumer is to product appearance
And the idea of functional requirement is also stepping up, and develops towards the direction more refined, certain promotion certainly will be brought to the industry
Power.
In the paper mould production process using plant fiber as primary raw material, the slurry that midge mould drops to pulp storage tank is put down
Face starts midge hereinafter, opening negative pressure of vacuum system, and the moisture in paper pulp under the action of negative pressure, is returned by the midge hole of midge mould
It takes out, under the midge net filtration of midge mould surface covering, it is online that the paper fiber in paper pulp is covered on midge, is formed and midge mould shape
The completely identical in structure paper mould wet embryo of shape.During this, since midge hole aperture is small, distributed quantity is limited, causes
The online vacuum degree of midge is uneven, so that will appear the suction of paper pulp wet embryo covers non-uniform phenomenon, the suction of paper pulp wet embryo is covered uneven
Product thin and thick after will lead to later period hot pressing is inconsistent, influences the quality of product.
As required precision of the market to layered product quality is higher and higher, advanced layered product, such as expensive goods are manufactured
Packing box, lining box or other holders etc., it is desirable that layered product whole smooth is without matte, and box body thickness is uniform, and color is uniform.
Meanwhile paper moulding forming equipment currently on the market, including midge mold, extrusion die, hot pressing upper mold, hot pressing lower die shift mould
With discharging fixture, upper wet embryo after extruding is carried out hot pressing in the step and is removed water with being formed and going by hot pressing upper mold and hot pressing lower die
Point, but since current technology is that air suction structure is arranged on mould under heat, it is all using 3 movement techniques of lower plate
Station, especially the process time longest in 2 link of station.
Summary of the invention
For deficiency present in existing above-mentioned background, the object of the present invention is to provide a kind of thickness is uniform, two-sided bloom
The formation system of slippery paper pulp moulding product；Using above-mentioned formation system, to obtain thickness equal the present invention also provides a kind of simultaneously
Even, layered product forming method of the whole high smooth without matte, this method is simple to operation, and to portion link structure therein
It improves, has saved cost, reduce the equipment forming moving time, improve the cycle period that equipment prepares moulding article.
To achieve the goals above, the present invention is to realize by the following technical solutions:
A kind of two-sided high glossy paper pulp moulding product formation system, comprising: by the successive suitable of moulded paper pulp product preparation
Sequence successively includes:
Midge mold is respectively provided with the front type chamber and reverse side type chamber of same layered product；
Extrusion die is set to the corresponding top of the midge mold, after midge die strip wet embryo inverts upwards, squeezes with described
Compression mould carries out First Extrusion to wet embryo；
Hot pressing die, hot pressing die include the hot pressing upper mold and hot pressing lower die of the corresponding midge mold, in the hot pressing
The contact surface of mould and hot pressing lower die and embryo material to be extruded is highlight surface；Hot pressing upper mold can move up and down along the vertical direction, hot pressing
Lower die can move left and right in the horizontal direction, when be moved to above and below hot pressing upper mold to it is corresponding when hot-pressing processing.
Optionally, it is equipped with air suction structure in the hot pressing upper mold, is equipped with blowing structure in the hot pressing lower die.
Optionally, spray equipment is set before hot pressing die, and spray equipment includes:
Sliding rail, it is arranged in parallel；
Pipe support is sprayed, is laterally set between the sliding rail, which is provided with several spray heads, the spray head is with spray pipe support
It moves on the slide rail, in mobile process, sprays spray liquid to the surface to be fit of wet mold base.
Optionally, the air suction structure includes suction chamber, and suction chamber is equipped with air entry relative to product waste material zone position；It blows
Depressed structure includes air blowing chamber, and air blowing chamber is equipped with inflatable mouth relative to product two sides waste material zone position.
Optionally, the new transfer mould in the hot pressing lower die and the downstream side for being placed in the hot pressing lower die is fixed on horizontal sliding
On plate.
The present invention also provides a kind of two-sided high smooth paper pulp moulding product forming methods, comprising the following steps:
Slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material by midge；
Front type chamber wet embryo obtained above and reverse side type chamber wet embryo are placed on the opposite on hot pressing lower die by matte by hot pressing
Interior, hot pressing lower die moves down extruding and heats, and 80 DEG C~110 DEG C of heating temperature；Meanwhile after the completion of heating, when hot pressing upper mold
After separating with hot pressing lower die, moulding article is formed by hot pressing upper mold absorption migration.
Optionally, further include the steps that spray before a hot pressing, be waited for the original double-deck embryo material obtained above
Adhesive surface sprays spray liquid.
Optionally, the spray liquid is 2wt%~10wt% hydrogel solution.
Optionally, the front type chamber of midge mold and reverse side type chamber midge, overturning from stock tank respectively, and be provided thereon
Extrusion die squeeze, overturn again after extruding, at this point, hot pressing lower die is moved to the left the lower section of midge mould, midge mould will be positive
Type chamber wet embryo and reverse side type chamber wet embryo are placed on the opposite in first group of hot pressing lower die by matte, form station 1；
Hot pressing lower die moves right to position corresponding with hot pressing upper mold, station 2 is formed, at this point, hot pressing upper mold is vertical
It moves down, squeezes wet embryo and heat-shaping with hot pressing lower die；
Hot pressing upper mold and the moulding article being attached in hot pressing upper mold move straight up；
Hot pressing lower die moves to left jointly with discharging fixture, returns to station 1, at this point, hot pressing upper mold is corresponding with new transfer mould,
The moulding article of formation is placed in new transfer lower die by hot pressing upper mold；It moves to right and returns to station 2, material fetching mechanism feeding.
The invention also includes one kind moulding articles made of above equipment or method.
Technical solution of the present invention has the advantages that
The embodiment of the invention provides a kind of two-sided high glossy paper pulp moulding product formation system, midge mold has respectively
There are the front type chamber and reverse side type chamber of same layered product；Hot pressing die is respectively provided with the hot pressing upper mold of the corresponding midge mold
With hot pressing lower die；The contact surface of hot pressing upper mold and hot pressing lower die and embryo material to be extruded is highlight surface, is inhaled by corresponding front and back sides
The front and back sides of the obverse and reverse moulding article for the layered product that slurry type chamber obtains, two moulding articles of gained are matte, then
Squeeze simultaneously hot pressing to product obtained above by matched high smooth surface hot-die, obtains two-sided smooth paper pulp die
Molding product；More preferably, further include spray equipment between midge mold and extrusion die assembly line, treated by spray equipment viscous
Conjunction face is sprayed, and obtains moulding article in homogeneous thickness, then by squeezing bonding, obtain high-quality moulding article.In vacuum
The top for inhaling mold device is equipped with spray equipment, and spray equipment is moved on the slide rail with certain speed, to wet mould in mobile process
Spray liquid in base surface, on the one hand, the billet surface moisturizing that the liquid of sprinkling facilitates after moisture absorption and inside in vacuum due to inhaling
The variation of molded shape caused by the internal stress not enough uniformly generated is locally dehydrated in wet process, in addition, midge is uneven
Or the wet non-uniform problem of base surface thickness caused by other reasons, it can be significantly improved by squirting for certain pressure
And solution.
The present invention will be arranged air suction structure in hot pressing upper mold, blowing structure is arranged in hot pressing lower die, when the second wheel wet embryo from
When producing in stock tank, the wet embryo of prior art uses the wet embryo of the application equipment to be located in hot pressing upper mold under heat in mould；
When the transfer mould of prior art device, which stretches in hot pressing lower die, shifts moulding article, the hot pressing upper mold of the application is also by mould
Modeling product is placed in new transfer mould, meanwhile, the wet embryo of next round is placed into hot pressing lower die, and waiting moves to right rear and hot pressing
Upper mold is hot-forming；When the moulding article of the prior art device first round also wait discharging fixture move to right when, the application equipment
First moulding article taken away, and second moulding article completes the sizing of upper and lower hot-die, i.e., will shift.It is comprehensive
On, it can be clearly seen that, molding equipment of the invention is obviously improved on the fabrication cycle compared with the molding of the prior art, after tested,
Single product improves 20s or more, if calculating by 10000 moulding articles, saves at least 8 days than original technology, greatly improves
Production cycle.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of whole signal of embodiment of the two-sided high glossy paper pulp moulding product formation system of the present invention
Figure；
Fig. 2 is the structural representation of second of embodiment of the two-sided high glossy paper pulp moulding product formation system of the present invention
Figure；
Fig. 3 is structure of extrusion schematic diagram of the present invention；
Fig. 4 is spray equipment structural schematic diagram of the present invention；
Fig. 5 is the forming schematic diagram of moulded paper pulp product of the present invention；
Fig. 6 is midge mold structure diagram of the present invention；
Fig. 7 is extrusion die operation schematic diagram of the present invention；
Fig. 8 forms station schematic diagram when being worked by prior art device；
Fig. 9 present device formed station schematic diagram when working.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
A kind of two-sided high glossy paper pulp moulding product formation system provided in this embodiment, it is shown in Figure 1, by paper pulp
The sequencing of moulding article preparation successively includes: that midge mould 2 forms wet embryo after 1 integrated mud suction of stock tank；Extrusion die 3 is set to suction
The corresponding top of mould 2 is starched, after midge mould 2 inverts upwards with wet embryo, First Extrusion is carried out to wet embryo with extrusion die 3；Hot pressing upper mold 4
It can move up and down along the vertical direction；Hot pressing lower die 5 can move left and right in the horizontal direction, when be moved to in hot pressing lower die 5
Under to it is corresponding when hot-pressing processing is carried out to wet embryo；It is equipped with air suction structure in hot pressing upper mold 4, is equipped with blowing structure in hot pressing lower die 5；
The new transfer mould 8 in hot pressing lower die 5 and the downstream side for being placed in hot pressing lower die 5 is fixed on horizontal sliding panel, it is new shift in mould 8 at
Type moulding article is shifted by the automatic material taking mechanism feeding 9 for being set to side downstream.Wherein, automatic material taking mechanism is not of the invention
At innovation, it can excessively not described herein for material fetching mechanism suitable in the market, specific structure.
Specifically, shown in Figure 5, midge mold includes the front type chamber 101 and reverse side type with same layered product
The midge mold 102 of chamber, sets vacuum values, and midge obtains molding wet embryo 40, wherein front type chamber midge mold 101 and reverse side
The type chamber size of type chamber midge mold 102 differs 0.3mm~0.5mm, so that obtained two wet embryos intussusception and can paste completely
It is combined, two obtained wet embryo 40 is sent to respectively in the hot pressing lower die of hot pressing die 30.Referring to fig. 2 and shown in Fig. 6, front
The wet embryo that type chamber obtains is delivered to hot pressing upper mold 301, and the wet embryo that reverse side type chamber obtains is delivered to hot pressing lower die 302, hot pressing upper mold
301 and the contact surface of hot pressing lower die 302 and embryo material to be extruded be highlight surface, hot pressing upper mold moves straight down, hot pressing lower die phase
It to movement and squeezes, so that two opposite faces of two wet embryos are highlight surface, there is heating component in extrusion die, such as add
Hot pin, while hot-die squeezes wet embryo, by heating so that the moisture in wet embryo scatters and disappears from the evaporation of the side of extrusion die,
While squeezing, in mutual extrusion and when heating, fibrous layer can be bonded to each other together, be formed for the adhesive surfaces of two wet embryos
The moulded paper pulp product of two sides highlight surface, it is shown in Figure 4.
More preferably, in the intermediate link of whole system, i.e., mold spray is additionally provided between midge part and heated pressure section
Device 20 sprays certain thickness spray liquid to the face to be bonded of wet embryo after midge, and shown in Figure 3, spray equipment includes phase
Mutually parallel sliding rail 201, spray pipe support 203 are laterally set between sliding rail 201, which is provided with several spray heads 202, spray head
202 move on sliding rail 201 with spray pipe support 201, spray spray liquid to the surface to be fit of wet mold base in mobile process.
Spray liquid uses 5wt%~8wt% hydrogel solution as spray liquid, in practice it has proved that can be with using above-mentioned spray liquid
Extraordinary to solve the problems, such as that the suction of paper pulp wet embryo is covered and unevenly causes the product thin and thick after later period hot pressing inconsistent, hydrogel is
The swelling body with cross-linked structure formed between macromolecular chain with chemical bond or physical force, can produce the stimulation of external condition
Raw corresponding volume phase transition, firstly, hydrogel is that have hydrophilic residue using water as decentralized medium, it can be with water molecules, it will
Hydrone is connected to network internal, therefore, has water conservation moisture retention well, in addition, the friendship that hydrophobic residue water-swellable is formed
Linked polymer, cross-linked polymer are sprayed in wet base surface with certain pressure, since it is swollen resiliency, will not be made to wet base surface
At two times punch bring inhomogeneities, the slurries of its surface position Hou Dian can also be broken up uniformly well, piled stock
Demoulded again after breaking up out hot pressing lower die carry out hot pressing, on the other hand, two moulding articles to be bonded under the pressure of extrusion die,
It can be bonded by fiber faying face, but adhesive strength is inadequate, and the hydrogel component of spray liquid can play adhesive
Effect, tests prove that, the bonding intensity indifference of binding strength and general industry glue, obtained double smooth surface moulded works
Quality obtain the approval of L 1 customer.
Specifically, the corresponding air suction structure of hot pressing upper mold includes suction chamber, and suction chamber is relative to product two sides waste material position
Air entry is installed, the gas circuit of air-breathing is connect with the device for providing negative pressure；The corresponding blowing structure of hot pressing lower die includes air blowing chamber,
Air blowing chamber is equipped with inflatable mouth relative to product two sides waste material zone position, and the gas circuit of air blowing is advertised gas device with offer and connect.It inhales
Gas and blowing structure are acted in addition to air-breathing and air blowing, and air-breathing exhausts vapor when hot-forming, and die sinking when blows, and are blown out
Product.
Above-mentioned listed air suction structure and blowing structure are an embodiment of the present embodiment, can also choose realization energy
Enough other air-breathings or blowing methods being adsorbed in wet embryo on mold.
Embodiment 2
A kind of forming method of paper mould is present embodiments provided, it is shown in Figure 9, include the following steps:
Midge mould 2 is after midge in stock tank 1, overturning, squeezes with the extrusion die 3 being provided thereon, overturns again after extruding, this
When, hot pressing lower die 5 is moved to the left the lower section of midge mould 2, and wet embryo is placed in hot pressing lower die 5 by midge mould 2, at this point, being formed
Station 1, hot pressing lower die 5 move right to position corresponding with hot pressing upper mold 4, form station 2, at this point, hot pressing upper mold 4 is vertical
It moves down, wet embryo and heat-shaping is squeezed with hot pressing lower die 5, due to being equipped with air suction structure, hot pressing lower die 5 in hot pressing upper mold 4
Interior to be equipped with blowing structure, therefore, the moulding article being here formed as is in hot pressing upper mold 4, and hot pressing lower die 5 and discharging fixture are total later
With moving to left, station 1 is returned to, at this point, hot pressing upper mold 4 is corresponding with new transfer mould 8, hot pressing upper mold 4 puts the moulding article of formation
It is placed in new transfer mould 8, moves to right and return to station 2,9 feeding of material fetching mechanism.Present invention reduces the forming moving time of equipment,
Improve the cycle period 20s or more of equipment.
Fig. 8 is the working principle of the prior art, includes the following steps: midge mould 2 after midge in stock tank, overturning and is set
Extrusion die 3 thereon squeezes, and overturns again after extruding, at this point, the lower section that hot pressing lower die is moved to midge mould 2 to 5, midge mould
2 are placed in wet embryo in hot pressing lower die 5, at this point, forming station 1, hot pressing lower die 5 moves right to corresponding with hot pressing upper mold 4
Position, form station 2, at this point, hot pressing upper mold 4 moves straight down, squeeze wet embryo and heat-shaping with hot pressing lower die 5, it is existing
Have technology it is crucial that herein, the moulding article of formation is under heat in mould, and hot pressing lower die 5 and discharging fixture 7 have jointly later
It moves right again, forms station 3, at this point, hot pressing lower die 5 is corresponding with transfer mould 6, transfer mould 6 is moved under hot pressing straight down
In mould 5, the moulding article of formation is transferred in discharging fixture 7.
In the present embodiment, new transfer mould 8 is changed to cavity die structure from the punch structure of original technology.
The present invention is existing when second moulding article 20 is produced out of stock tank 1 compared with the moulding process of the prior art
First moulding article 10 of technique is located at also under heat in mould 5 using first moulding article 10 of the application equipment
In hot pressing upper mold 4；When the transfer mould 6 of prior art device, which stretches in hot pressing lower die 5, shifts moulding article, the application's
Moulding article is also placed in new transfer mould 8 by hot pressing upper mold 4, meanwhile, second moulding article 20 is placed under hot pressing
In mould 5, waiting is hot-forming with hot pressing upper mold 4 after moving to right；When the moulding article of the prior art device first round is also unloaded in waiting
When material clamp 7 moves to right, first moulding article 10 of the application equipment has been taken away, and second moulding article 20 is completed
The sizing of lower hot-die, i.e., will shift.To sum up, it can be clearly seen that, the molding of molding equipment of the invention compared with the prior art
Fabrication cycle on be obviously improved, after tested, single product improves 20s or more, comparable if calculating by 10000 moulding articles
Former technology saves at least 8 days, greatly improves the production cycle.
Embodiment 3
A kind of two-sided high smooth paper pulp moulding product forming method is present embodiments provided, is included the following steps,
S1. slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material；
S2. hot pressing lower die is moved to the left, and it is opposite that front type chamber wet embryo obtained above and reverse side type chamber wet embryo are pressed matte
It is placed in hot pressing lower die, hot pressing upper mold moves down extruding and heats, and 80 DEG C of heating temperature, heats 5min；Meanwhile it heating
Cheng Hou, hot pressing upper mold and hot pressing lower die separate, and form moulding article by hot pressing upper mold absorption migration；
S3. hot pressing lower die moves to left jointly with discharging fixture, returns to station 1, at this point, hot pressing upper mold is opposite with new transfer mould
It answers, the moulding article of formation is placed in new transfer lower die by hot pressing upper mold；It moves to right and returns to station 2, material fetching mechanism feeding.
Embodiment 4
A kind of two-sided high smooth paper pulp moulding product forming method is present embodiments provided, is included the following steps,
S1. slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material；
S2. hot pressing lower die is moved to the left, and it is opposite that front type chamber wet embryo obtained above and reverse side type chamber wet embryo are pressed matte
It is placed in hot pressing lower die, hot pressing upper mold moves down extruding and heats, and 110 DEG C of heating temperature, heats 5min；Meanwhile it heating
After the completion, hot pressing upper mold and hot pressing lower die separate, and form moulding article by hot pressing upper mold absorption migration；
S3. hot pressing lower die moves to left jointly with discharging fixture, returns to station 1, at this point, hot pressing upper mold is opposite with new transfer mould
It answers, the moulding article of formation is placed in new transfer lower die by hot pressing upper mold；It moves to right and returns to station 2, material fetching mechanism feeding.
The moulded paper pulp product that embodiment 3 and embodiment 4 obtain is two-sided smooth, and upper and lower two molding portions are firmly combined
The qualification rate of degree is 80%~90%, and the qualification rate of the uniformity of Unitarily molded product is 60% or so.
Embodiment 5
A kind of two-sided high smooth paper pulp moulding product forming method is present embodiments provided, is included the following steps,
S1. slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material；
S2. spray liquid is sprayed to the original double-deck embryo material surface to be bonded obtained above, spray liquid is in spray tube
It is with pressure to spray 10 seconds back and forth under the pressure of 0.1MPa, spraying intensity 0.5L/minm2, spray hydrogel thickness is 0.05mm；
S3.S2. hot pressing lower die is moved to the left, and front type chamber wet embryo obtained above and reverse side type chamber wet embryo are pressed matte phase
To being placed in hot pressing lower die, hot pressing upper mold moves down extruding and heats, and 110 DEG C of heating temperature, heats 5min；Meanwhile adding
After the completion of heat, hot pressing upper mold and hot pressing lower die are separated, and form moulding article by hot pressing upper mold absorption migration；
S4. hot pressing lower die moves to left jointly with discharging fixture, returns to station 1, at this point, hot pressing upper mold is opposite with new transfer mould
It answers, the moulding article of formation is placed in new transfer lower die by hot pressing upper mold；It moves to right and returns to station 2, material fetching mechanism feeding.
Wherein, for the spray liquid of sprinkling be disperse the Chitosan powder of 1:3 parts by weight and cellulose powder in from
In sub- water, it is configured to the hydrogel solution that concentration is 3wt%；Its pH value is adjusted to 5 using citric acid, is placed at 40 DEG C and is carried out
Stirring, it is stand-by as spray liquid after mixing evenly.
Embodiment 6
A kind of two-sided high smooth paper pulp moulding product forming method is present embodiments provided, is included the following steps,
S1. slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material；
S2. spray liquid is sprayed to the original double-deck embryo material surface to be bonded obtained above, spray liquid is in spray tube
It is with pressure to spray 10 seconds back and forth under the pressure of 0.2MPa, spraying intensity 0.2L/minm2；Spray hydrogel thickness is 0.10mm；
S3.S2. hot pressing lower die is moved to the left, and front type chamber wet embryo obtained above and reverse side type chamber wet embryo are pressed matte phase
To being placed in hot pressing lower die, hot pressing upper mold moves down extruding and heats, and 100 DEG C of heating temperature, heats 10min；Meanwhile adding
After the completion of heat, hot pressing upper mold and hot pressing lower die are separated, and form moulding article by hot pressing upper mold absorption migration；
S4. hot pressing lower die moves to left jointly with discharging fixture, returns to station 1, at this point, hot pressing upper mold is opposite with new transfer mould
It answers, the moulding article of formation is placed in new transfer lower die by hot pressing upper mold；It moves to right and returns to station 2, material fetching mechanism feeding.
Wherein, for the spray liquid of sprinkling be disperse the Chitosan powder of 1:4 parts by weight and cellulose powder in from
In sub- water, it is configured to the hydrogel solution that concentration is 5wt%；Its pH value is adjusted to 5 using citric acid, is placed at 40 DEG C and is carried out
Stirring, it is stand-by as spray liquid after mixing evenly.
Embodiment 7
A kind of two-sided high smooth paper pulp moulding product forming method is present embodiments provided, is included the following steps,
S1. slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material；
S2. spray liquid is sprayed to the original double-deck embryo material surface to be bonded obtained above, spray liquid is in spray tube
It is with pressure to spray 10 seconds back and forth under the pressure of 0.2MPa, spraying intensity 0.4L/minm2；Spray hydrogel thickness is 0.05mm；
S3. hot pressing lower die is moved to the left, and it is opposite that front type chamber wet embryo obtained above and reverse side type chamber wet embryo are pressed matte
It is placed in hot pressing lower die, hot pressing upper mold moves down extruding and heats, and 80 DEG C of heating temperature, heats 9min；Meanwhile it heating
Cheng Hou, hot pressing upper mold and hot pressing lower die separate, and form moulding article by hot pressing upper mold absorption migration；
S3. hot pressing lower die moves to left jointly with discharging fixture, returns to station 1, at this point, hot pressing upper mold is opposite with new transfer mould
It answers, the moulding article of formation is placed in new transfer lower die by hot pressing upper mold；It moves to right and returns to station 2, material fetching mechanism feeding.
Wherein, for the spray liquid of sprinkling be disperse the Chitosan powder of 1:4 parts by weight and cellulose powder in from
In sub- water, it is configured to the hydrogel solution that concentration is 4wt%；Its pH value is adjusted to 5 using citric acid, is placed at 40 DEG C and is carried out
Stirring, it is stand-by as spray liquid after mixing evenly.
Embodiment 8
A kind of two-sided high smooth paper pulp moulding product forming method is present embodiments provided, is included the following steps,
S1. slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material；
S2. spray liquid is sprayed to the original double-deck embryo material surface to be bonded obtained above, spray liquid is in spray tube
It is with pressure to spray 10 seconds back and forth under the pressure of 0.2MPa, spraying intensity 0.5L/minm2；
S3. hot pressing lower die is moved to the left, and it is opposite that front type chamber wet embryo obtained above and reverse side type chamber wet embryo are pressed matte
It is placed in hot pressing lower die, hot pressing upper mold moves down extruding and heats, and 80 DEG C of heating temperature, heats 10min；Meanwhile it heating
After the completion, hot pressing upper mold and hot pressing lower die separate, and form moulding article by hot pressing upper mold absorption migration；
S4. hot pressing lower die moves to left jointly with discharging fixture, returns to station 1, at this point, hot pressing upper mold is opposite with new transfer mould
It answers, the moulding article of formation is placed in new transfer lower die by hot pressing upper mold；It moves to right and returns to station 2, material fetching mechanism feeding.
Wherein, for the spray liquid of sprinkling be disperse the Chitosan powder of 2:5 parts by weight and cellulose powder in from
In sub- water, it is configured to the hydrogel solution that concentration is 5wt%；Its pH value is adjusted to 5 using citric acid, is placed at 40 DEG C and is carried out
Stirring, it is stand-by as spray liquid after mixing evenly.
The moulded paper pulp product that 5~embodiment of embodiment 9 obtains is two-sided smooth, and upper and lower two molding portions are firmly combined
The qualification rate of degree is 95%~100%, and the qualification rate of the uniformity of Unitarily molded product is 98% or so.
Comparative example 1
A kind of two-sided high smooth paper pulp moulding product forming method is present embodiments provided, is included the following steps,
S1. slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material；
S2. hot pressing lower die is moved to the left, and it is opposite that front type chamber wet embryo obtained above and reverse side type chamber wet embryo are pressed matte
It is placed in hot pressing lower die, hot pressing upper mold moves down extruding and heats, and 110 DEG C of heating temperature, heats 5min.
Comparative example 2
A kind of two-sided high smooth paper pulp moulding product forming method is present embodiments provided, is included the following steps,
S1. slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material；
S2. spray liquid is sprayed to the original double-deck embryo material surface to be bonded obtained above, spray liquid is in spray tube
It is with pressure to spray 10 seconds back and forth under the pressure of 0.2MPa, spraying intensity 0.5L/minm2；
S3. the original double-deck embryo material obtained above is transferred to respectively in upper extrusion die and lower extrusion die, upper extrusion die and
Lower extrusion die moves towards and squeezes the original double-deck embryo material, and 90 DEG C of heating temperature；
S4. 8min is squeezed and heated, the dry moisture of next station is transferred to.
Wherein, for the spray liquid of sprinkling be disperse the Chitosan powder of 1:1 parts by weight and cellulose powder in from
In sub- water, it is configured to the hydrogel solution that concentration is 1wt%；Its pH value is adjusted to 5 using citric acid, is placed at 40 DEG C and is carried out
Stirring, it is stand-by as spray liquid after mixing evenly.
The moulded paper pulp product that comparative example 1 and comparative example 2 obtain is two-sided smooth, and upper and lower two molding portions are firmly combined
The qualification rate of degree is 80% or so, and the qualification rate of the uniformity of Unitarily molded product is 90% or so.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of two-sided high glossy paper pulp moulding product formation system, which is characterized in that the elder generation prepared by moulded paper pulp product
Sequence successively includes: afterwards
Midge mold is respectively provided with the front type chamber and reverse side type chamber of same layered product；
Extrusion die is set to the corresponding top of the midge mold, after midge die strip wet embryo inverts upwards, with the extrusion die
Tool carries out First Extrusion to wet embryo；
Hot pressing die, hot pressing die include the hot pressing upper mold and hot pressing lower die of the corresponding midge mold, the hot pressing upper mold and
The contact surface of hot pressing lower die and embryo material to be extruded is highlight surface；Hot pressing upper mold can move up and down along the vertical direction, hot pressing lower die
Can move left and right in the horizontal direction, when be moved to above and below hot pressing upper mold to it is corresponding when hot-pressing processing.
2. two-sided high glossy paper pulp moulding product formation system according to claim 1, which is characterized in that the hot pressing
It is equipped with air suction structure in upper mold, is equipped with blowing structure in the hot pressing lower die.
3. two-sided high smooth paper pulp moulding product formation system according to claim 1, which is characterized in that in hot pressing die
Preceding setting spray equipment, spray equipment include:
Sliding rail, it is arranged in parallel；
Pipe support is sprayed, is laterally set between the sliding rail, which is provided with several spray heads, the spray head is with spray pipe support in cunning
It is moved on rail, in mobile process, sprays spray liquid to the surface to be fit of wet mold base.
4. two-sided high smooth paper pulp moulding product formation system according to claim 1, which is characterized in that the air-breathing knot
Structure includes suction chamber, and suction chamber is equipped with air entry relative to product waste material zone position；Blowing structure includes air blowing chamber, air blowing chamber phase
Inflatable mouth is equipped with for product two sides waste material zone position.
5. the molding equipment of paper mould according to claim 4, which is characterized in that the hot pressing lower die and be placed in described
The new transfer mould in the downstream side of hot pressing lower die is fixed on horizontal sliding panel.
6. a kind of two-sided high smooth paper pulp moulding product forming method, which comprises the following steps:
Slurry is adsorbed in corresponding midge die surface up and down, obtains the original double-deck embryo material by midge；
Front type chamber wet embryo obtained above and reverse side type chamber wet embryo are placed on the opposite in hot pressing lower die by hot pressing by matte, heat
Pressure mould moves down extruding and heats, and 80 DEG C~110 DEG C of heating temperature；Meanwhile after the completion of heating, when hot pressing upper mold and hot pressing
After lower die separates, moulding article is formed by hot pressing upper mold absorption migration.
7. two-sided high smooth paper pulp moulding product forming method according to claim 6, which is characterized in that further include one
The step of spraying is carried out before secondary hot pressing, sprays spray liquid to the original double-deck embryo material surface to be bonded obtained above.
8. two-sided high smooth paper pulp moulding product forming method according to claim 7, which is characterized in that the spray liquid
For 2wt%~10wt% hydrogel solution.
9. two-sided high smooth paper pulp moulding product forming method according to claim 6, which is characterized in that midge mold
Front type chamber and reverse side type chamber midge, overturning from stock tank respectively, and squeezed with the extrusion die being provided thereon, it is turned over again after extruding
Turn, at this point, hot pressing lower die is moved to the left the lower section of midge mould, midge mould is by front type chamber wet embryo and reverse side type chamber wet embryo by rough
Face is placed on the opposite in first group of hot pressing lower die, forms station 1；
Hot pressing lower die moves right to position corresponding with hot pressing upper mold, station 2 is formed, at this point, hot pressing upper mold is straight down
It is mobile, wet embryo and heat-shaping are squeezed with hot pressing lower die；
Hot pressing upper mold and the moulding article being attached in hot pressing upper mold move straight up；
Hot pressing lower die moves to left jointly with discharging fixture, returns to station 1, at this point, hot pressing upper mold is corresponding with new transfer mould, hot pressing
The moulding article of formation is placed in new transfer lower die by upper mold；It moves to right and returns to station 2, material fetching mechanism feeding.
10. a kind of moulding article made of any equipment of claim 1~9 or method.
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| CN110747700A (en) * | 2019-10-31 | 2020-02-04 | 湖北麦秆环保科技有限公司 | Integrated efficient sugarcane pulp molding equipment and process |
| CN110983867A (en) * | 2019-12-30 | 2020-04-10 | 永发（河南）模塑科技发展有限公司 | Equipment and method for solving back side pulp hanging problem of paper pulp forming product |
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