CN107974873B - Automatic molding machine for overturning double suction slurry of molded product and manufacturing method - Google Patents
Automatic molding machine for overturning double suction slurry of molded product and manufacturing method Download PDFInfo
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- CN107974873B CN107974873B CN201711161999.8A CN201711161999A CN107974873B CN 107974873 B CN107974873 B CN 107974873B CN 201711161999 A CN201711161999 A CN 201711161999A CN 107974873 B CN107974873 B CN 107974873B
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- 238000000465 moulding Methods 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- 239000002002 slurry Substances 0.000 title claims description 70
- 238000007731 hot pressing Methods 0.000 claims abstract description 123
- 230000007246 mechanism Effects 0.000 claims abstract description 87
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 238000005086 pumping Methods 0.000 claims description 96
- 230000009471 action Effects 0.000 claims description 81
- 230000007306 turnover Effects 0.000 claims description 78
- 238000003825 pressing Methods 0.000 claims description 46
- 238000007664 blowing Methods 0.000 claims description 31
- 210000001161 mammalian embryo Anatomy 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 10
- 241001133184 Colletotrichum agaves Species 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 13
- 230000035939 shock Effects 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000003053 toxin Substances 0.000 description 2
- 231100000765 toxin Toxicity 0.000 description 2
- 108700012359 toxins Proteins 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011359 shock absorbing material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J5/00—Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch-moulds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a moulding product overturning double-suction pulp automatic forming machine and a manufacturing method for manufacturing the moulding product, which mainly comprises the steps of feeding an upper mould and a lower mould of pulp suction into a pulp box, finishing pulp suction into an upper blank layer and a lower blank layer simultaneously, driving the upper mould and the lower mould to be quickly extruded by a cold mould through a overturning mechanism, combining the upper blank layer and the lower blank layer into thick blanks with doubled thickness by clamping the upper mould and the lower mould of pulp suction, and hot-pressing and shaping the upper mould and the lower mould into the moulding product through hot pressing.
Description
Technical Field
The present invention relates to a molding product overturning double-suction automatic molding machine and a manufacturing method for manufacturing a molding product, and more particularly, to a molding product overturning double-suction automatic molding machine which can save assembly space, increase manufacturing speed, increase thickness of the molding product and vibration-proof space, enhance buffering vibration-proof effect, and make surfaces of the molding product overturning double-suction automatic molding machine be smooth, and a manufacturing method for manufacturing the molding product.
Background
The plastic products made of plastic materials have the problems that toxins are easy to release and cause serious pollution to the environment, the toxins are difficult to recycle, or the recycling and decomposing are difficult to treat, the recycling treatment cost is huge, and the like, so that serious injury to global environmental protection is caused for many years. In the current age of high environmental awareness, the search for nontoxic and easily recycled materials has become the mainstream in research and practical application.
At present, pulp fiber materials and/or plant fiber materials are mixed and pulped to form pulp materials, pulp adhesion materials are absorbed by a pulp absorbing mold, and the pulp adhesion materials are manufactured by a hot pressing shaping technology, so that the pulp adhesion materials are different from plastic products, and are generally called as molded products. Molded products have the advantage of easy recycling, reuse, and energy conservation and carbon reduction, and thus are rapidly accepted and favored by industry and general Luo Dazhong, molded products are often seen as: products such as bowls, plates, cup covers, packaging materials, shock absorbing materials, cushion materials and the like are increasingly adopted.
The manufacturing of the molding product is required to go through two operations of 'suction molding' and 'hot press molding', wherein 'suction molding' is to dip a suction lower die into a slurry box filled with slurry, then vacuum suction is carried out on the slurry in the slurry box by a suction device through the suction die, so that a 'embryo layer' is formed on the die surface of the suction die, when the suction die rises and leaves the slurry box, the embryo layer is gradually dehumidified due to continuous suction effect, then the suction die and the embryo layer are lifted together and turned over to press the embryo layer together with a cold die, so that the slurry layer reduces the humidity and is molded into a 'primary embryo', then the suction die is changed to absorb the primary embryo to leave the cold die, the operation of suction molding is completed, and then 'hot press molding' is carried out on the embryo layer after suction molding by means of the hot press die, so that the original embryo layer is dried and molded into a finished product of the molding product.
The present inventors have made a professional work on the production of molded products, and have found that there are drawbacks in the production of molded products through experience of contacting molded products for a long period of time:
1. the manufacturing speed is slow. In the conventional process of producing a molded product, the adsorption operation of the blank layer can be performed only on one side (the side attached to the mold surface), so that the overall wet-down speed of the blank layer is slow and inconsistent, and the production speed is affected.
2. The thickness cannot be increased, resulting in poor shock absorbing effect. When the traditional molded product is manufactured, the slurry suction mold can only cover the blank layer on the mold surface once, and the blank layer cannot be laminated in multiple layers, so that the thickness cannot be increased, and the slurry suction mold is generally only suitable for small products (such as bowls, plates, cup covers and the like) with smooth appearance and without excessive thickness, and if the molded product with relatively thick thickness and better shock absorption effect (such as packaging material with better shock absorption effect) is required to be manufactured, the traditional manufacturing method is difficult to achieve.
3. The surface has non-optimal surface, which causes low value. The conventional molded product has two surfaces, namely, a superior surface on one side and a non-superior surface on the other side, which is suitable for packaging the commodity with extremely high value (such as packaging eggs), but if the molded product is used for packaging the commodity with relatively high value (such as a mobile phone), the appearance is poor due to the fact that the packaging material of the molded product has the non-superior surface, and the value of the whole commodity is reduced.
Because the conventional molded products have the existing defects of low manufacturing speed, difficult thickness increase and non-optimal surface on the surface, the molded products are greatly limited in popularization of use, and cannot be directly used for packaging high-value commodities.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an automatic molding machine with a brand-new structure and composition and a manufacturing method for manufacturing molded products, so as to overcome the defects in the prior art.
The invention mainly aims to provide a molded product overturning double-suction automatic forming machine which can save the assembly space and increase the manufacturing speed and a manufacturing method for manufacturing the molded product.
Another main objective of the present invention is to provide a molded product overturning double-suction automatic molding machine and a manufacturing method thereof, which can increase the thickness of the finished product and the shock absorbing space, thereby facilitating the effect of gain buffering and shock absorbing.
Another object of the present invention is to provide a reverse double suction automatic molding machine for molded products and a method for manufacturing molded products, which can make the surfaces of the molded products all show excellent surfaces.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a molding product overturning double-suction slurry automatic molding machine comprises: a turnover mechanism which is supported by installation and exists in a main frame space and can be controlled to perform a turnover action of 180 degrees up and down, the top surface and the bottom surface of the turnover mechanism are respectively provided with a erection surface, and the whole turnover mechanism can be controlled to perform a vertical displacement action; the slurry box is arranged below the main frame space, slurry is contained in the slurry box, and the top surface of the slurry box is in an opening shape; the pulp sucking upper die is arranged on the mounting surface of the bottom surface of the turnover mechanism, so that the die surface of the pulp sucking upper die faces downwards when the pulp sucking upper die does not act, the pulp sucking upper die can do turnover action and up-down displacement action along with the turnover mechanism, and the pulp sucking upper die is connected with a first pumping device and can receive the pumping action or blowing action of the first pumping device; the pulp sucking lower die is supported by installation and exists at the top surface opening of the pulp box, the die surface of the pulp sucking lower die faces upwards, the die surface of the pulp sucking lower die is higher than the pulp surface of the pulp box when the pulp sucking lower die does not act, the pulp sucking lower die is connected with a second pumping device and can receive the pumping action or blowing action of the second pumping device, and the pulp sucking lower die can be controlled to do up-down displacement action; the cold pressing lower die is arranged on the mounting surface of the top surface of the turnover mechanism, so that the die surface of the cold pressing lower die faces upwards when the cold pressing lower die does not act, and the cold pressing lower die can perform turnover and up-down displacement actions along with the turnover mechanism; the cold pressing upper die is arranged on the top bottom surface of the main frame space, and the die surface of the cold pressing upper die is constantly downward; at least one hot pressing die which is supported by installation and exists in a side frame space, the side frame space is positioned at the side edge of the main frame space, the die surface of the hot pressing die faces upwards, the hot pressing die can be controlled to horizontally and transversely move, the position of the hot pressing die is positioned at one side of the turnover mechanism, and the hot pressing die is connected with a third pumping device and can receive the pumping action or blowing action of the third pumping device; and at least one hot pressing upper die arranged on the top bottom surface of the side frame space, wherein the die surface of the hot pressing upper die faces downwards, the hot pressing upper die is positioned right above the hot pressing lower die, the hot pressing upper die can be controlled to vertically move up and down, and the hot pressing upper die is connected with a fourth pumping device and can receive the pumping action or blowing action of the fourth pumping device.
In the automatic molding machine for overturning and double-suction pulp of the molded product, the mold surface of the upper pulp suction mold and the mold surface of the lower pulp suction mold are symmetrical in shape.
In the automatic molding machine for overturning and double-suction pulp of the molded product, the mold surface of the cold-pressing lower mold and the mold surface of the pulp-suction lower mold are symmetrical in shape, and the mold surface of the cold-pressing upper mold and the mold surface of the pulp-suction upper mold are symmetrical in shape.
In the automatic molding machine for overturning and double-suction slurry of the molded product, the die surface of the hot-pressing lower die and the die surface of the slurry-suction upper die are symmetrical in shape, and the die surface of the hot-pressing upper die and the die surface of the hot-pressing lower die are symmetrical in shape.
The invention also provides a manufacturing method for manufacturing the molded product by using the molded product overturning double-suction automatic molding machine, which comprises the following steps of:
(1) Starting the pulp suction lower die to descend and completely immersing the pulp into the pulp in the pulp box;
(2) The turning mechanism is started to descend from the initial middle position, so that the upper pulp sucking die is immersed into the pulp in the pulp box, the position of the upper pulp sucking die is higher than that of the lower pulp sucking die, and then the upper pulp sucking die and the lower pulp sucking die are started to suck pulp simultaneously so as to form an upper blank layer on the die surface of the upper pulp sucking die and a lower blank layer on the die surface of the lower pulp sucking die;
(3) When the slurry sucking time is up, the turnover mechanism drives the slurry sucking upper die and the upper blank layer to move back to the position, and simultaneously the slurry sucking lower die is driven to move up to the high position, so that the die surface of the slurry sucking lower die and the lower blank layer are separated from the slurry surface;
(4) Turning the turning mechanism up and down to change the cold pressing lower die into downward, and changing the slurry sucking upper die and the upper blank layer into upward;
(5) The turnover mechanism is lowered, so that the cold pressing lower die and the pulp sucking lower die are clamped to extrude the lower blank layer adsorbed on the pulp sucking lower die, at the moment, a second pumping device connected with the pulp sucking lower die starts a pumping action to dehydrate the lower blank layer, and the lower blank layer is adsorbed on the pulp sucking lower die;
(6) The turnover mechanism moves upwards to enable the slurry sucking upper die and the cold pressing upper die to be clamped so as to squeeze an upper blank layer adsorbed on the slurry sucking upper die, and at the moment, a first pumping device connected with the slurry sucking upper die starts a pumping function to dehydrate the upper blank layer;
(7) The turnover mechanism is lowered to the middle position, and the upper blank layer is adsorbed on the slurry sucking upper die;
(8) The turnover mechanism turns up and down again, so that the cold pressing lower die faces upwards, and the slurry sucking upper die adsorbs the upper blank layer to be downward;
(9) The turnover mechanism drives the slurry sucking upper die to adsorb the upper blank layer to descend until the slurry sucking upper die enters the slurry sucking lower die to be matched with the lower blank layer, so that the upper blank layer and the lower blank layer are combined into a thick blank by the slurry sucking upper die and the slurry sucking lower die in a coextrusion mode;
(10) The first pumping device connected with the pulp sucking upper die is enabled to continuously suck the thick embryo, and the second pumping device connected with the pulp sucking lower die is enabled to stop the pumping action and convert into blowing action, so that the thick embryo is separated from the pulp sucking lower die, and then the turnover mechanism drives the pulp sucking upper die to suck the thick embryo to move upwards to exceed the initial middle position;
(11) Starting the hot pressing lower die to horizontally and transversely move to the position right below the pulp sucking upper die at the moment;
(12) The turnover mechanism drives the pulp suction upper die to adsorb the thick blank to descend until the pulp suction upper die enters the hot pressing lower die for die assembly, and the thick blank is arranged between the pulp suction upper die and the hot pressing lower die;
(13) The third pumping device connected with the hot pressing lower die starts the pumping action to enable the hot pressing lower die to absorb the thick embryo, meanwhile, the first pumping device connected with the pulp sucking upper die stops the pumping action and is converted into the blowing action to enable the thick embryo to be separated from the pulp sucking upper die, and then the turnover mechanism moves back to the initial middle position immediately;
(14) Horizontally and transversely moving the hot-pressing lower die back to the position right below the hot-pressing upper die;
(15) Starting the hot-pressing upper die to descend until the hot-pressing upper die enters the hot-pressing lower die to be clamped, so that the thick blank is arranged between the hot-pressing upper die and the hot-pressing lower die, and the hot-pressing upper die and the hot-pressing lower die perform hot-pressing shaping operation on the thick blank together to dry the thick blank into a molded product;
(16) When the hot-press shaping operation is completed, the third pumping device connected with the hot-press lower die starts pumping action to enable the hot-press lower die to absorb the molded product, and the fourth pumping device connected with the hot-press upper die starts blowing action to enable the molded product to be separated from the hot-press upper die, and then the hot-press upper die moves upwards to return; then, the third pumping device connected with the hot-pressing lower die stops pumping action and is converted into blowing action, so that the molded product is separated from the hot-pressing lower die, and then the molded product is taken out from the hot-pressing lower die.
In the method for manufacturing the molded product by the molded product overturning double-suction automatic molding machine, the thickness of the thick blank is at least twice that of the upper blank layer or the lower blank layer.
In the method for manufacturing the molded product by the molded product overturning double-suction automatic molding machine, the molded product is taken off from the hot-pressing die by manual operation.
In the method for manufacturing the molded product by the molded product overturning double-suction automatic molding machine, the molded product is automatically taken off from the hot-pressing die by a mechanical arm.
In the method for manufacturing the molded product by the molded product overturning double-suction automatic molding machine, the upper suction mold and the lower suction mold respectively adsorb the upper blank layer and the lower blank layer, and have the same part of modeling and position and the same part of modeling and position.
In the method for manufacturing the molded product by the molded product overturning double-suction automatic molding machine, when the upper suction mold and the lower suction mold respectively adsorb the upper blank layer and the lower blank layer, and are combined into a thick blank, the parts with the same shape and position are bonded, the parts with different shapes and positions are not bonded, and a space exists.
Compared with the prior art, the invention has obvious progress:
1. the invention ensures that the pulp sucking upper die and the pulp sucking lower die suck pulp in the pulp box at the same time, thereby being capable of accelerating the manufacturing speed; such a structural design is not present in any conventional molding machine.
2. In the invention, the upper pulp sucking die and the lower pulp sucking die are used for sucking pulp simultaneously to form an upper blank layer and a lower blank layer, and then the turnover mechanism drives the upper pulp sucking die and the lower pulp sucking die to be clamped to combine the upper blank layer and the lower blank layer into thick blanks with doubled thickness after the cold die extrusion is rapidly completed, so that the thickness can be increased, and the shock absorbing effect of a finished product can be improved; meanwhile, the invention can form a plurality of spaces inside the molded product due to the choice of size design, thereby enhancing the buffering and shock absorbing effects.
3. The invention is designed to make the pulp sucking upper die and the cold pressing lower die respectively arranged on the top and bottom frame setting surfaces of the turnover mechanism and occupy only one working position together, thus reducing the working space of the whole device.
4. The thick blank formed in the process of the invention is an upper blank layer and a lower blank layer which are respectively adsorbed by the pulp sucking upper die and the lower die, the upper blank layer and the lower blank layer are driven by the turnover mechanism to be rapidly extruded and formed with the cold pressing upper die and the lower die, and then the upper blank layer and the lower blank layer are combined into the thick blank by the die closing of the pulp sucking upper die and the lower die.
Drawings
FIG. 1 is a schematic diagram of the structural components of a reverse double suction automatic molding machine for molded products according to the present invention.
Fig. 2 to 17 are schematic views showing successive steps of a manufacturing method for manufacturing a molded product according to the present invention.
FIG. 18 is a schematic diagram showing the operation of the upper and lower suction molds for simultaneously sucking slurry to form upper and lower blank layers according to the present invention.
FIG. 19 is a schematic diagram showing the operation of the upper and lower suction dies to combine the upper and lower blank layers into a thick blank.
In the figure:
1. automatic forming machine 10 and turnover mechanism
21. Main frame space 22, headbox
23. Side frame space 30, pulp suction upper die
40. Pulp suction lower die 50 and cold pressing lower die
60. Cold upper die 70 and hot press lower die
80. Hot top die 31, space
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
The invention provides a molded product overturning double-suction automatic forming machine and a manufacturing method for manufacturing a molded product by using the molded product overturning double-suction automatic forming machine.
The integral mechanism of the automatic molding machine for overturning and double-suction slurry of the molded product of the invention is shown in figure 1, and is an automatic molding machine 1 which is particularly suitable for manufacturing the molded product, and the structural composition mainly comprises:
a turnover mechanism 10 is supported by installation and exists in a main frame space 21, mainly can be controlled by an external power mechanism to perform a turnover operation of 180 degrees up and down when needed, the top surface and the bottom surface of the turnover mechanism 10 are respectively provided with a mounting surface, so that the mounting surfaces of the top surface and the bottom surface are interchanged when the turnover mechanism performs a turnover operation, and the whole turnover mechanism 10 can be driven by another external power mechanism to perform a vertical displacement operation when needed.
A slurry box 22 is disposed below the main frame space 21, and contains slurry therein, and the top surface of the slurry box 22 is open.
The pulp sucking upper die 30 is arranged on the mounting surface of the bottom surface of the turnover mechanism 10, so that the die surface of the pulp sucking upper die 30 faces downwards in normal (i.e. non-action), the pulp sucking upper die 30 can perform turnover action and up-down displacement action along with the turnover mechanism 10, and the pulp sucking upper die 30 is connected with a first pumping device and can receive the pumping (vacuum) action or blowing (air supply) action of the first pumping device.
A pulp sucking lower die 40 is supported by the mounting support and is located at the top opening of the pulp box 22, the die surface of the pulp sucking lower die 40 faces upwards, when not in operation, the die surface of the pulp sucking lower die 40 is higher than the pulp surface of the pulp box 22, the pulp sucking lower die 40 is connected with a second pumping device, can receive the pumping (vacuum) action or blowing (air supply) action of the second pumping device, and the pulp sucking lower die 40 is driven by an external power mechanism to do up-down displacement action when needed. The upper suction die 30 and the lower suction die 40 have a symmetrical shape, for example, the upper suction die 30 has a convex shape and the lower suction die 40 has a concave shape.
The cold pressing die 50 is erected on the mounting surface of the top surface of the turnover mechanism 10, so that the die surface of the cold pressing die 50 faces upwards in normal (i.e. non-operating) state, and the cold pressing die 50 performs turnover and up-down displacement along with the turnover mechanism 10. The mold surface of the cold pressing lower mold 50 is symmetrical to the mold surface of the pulp sucking lower mold 40, so the mold surface of the cold pressing lower mold 50 is convex.
A cold pressing upper die 60 is installed on the top and bottom surfaces of the main frame space 21, and the die surface of the cold pressing upper die 60 is constantly downward. The mold surface of the cold pressing upper mold 60 is symmetrical to the mold surface of the slurry sucking upper mold 30, so that the mold surface of the cold pressing upper mold 60 is concave.
A hot pressing die 70 is supported by the mounting and exists in the side frame space 23, the side frame space 23 is located at the side of the main frame space 21, the die surface of the hot pressing die 70 faces upward, and the die surface of the hot pressing die 70 and the die surface of the pulp sucking die 30 are symmetrical, so that the die surface of the hot pressing die 70 and the die surface of the pulp sucking die 40 are concave. The hot press die 70 can be pushed by an external power mechanism (such as a motor, a sliding rail and a roller, not limited) to horizontally and transversely move, the hot press die 70 is located at one side of the turnover mechanism 10, and the hot press die 70 is connected with a third pumping device, so as to receive the pumping (vacuum) action or blowing (air supply) action of the third pumping device.
The hot pressing upper die 80 is arranged on the top bottom surface of the side frame space 23, the die surface of the hot pressing upper die 80 faces downwards, and the die surface of the hot pressing upper die 80 and the die surface of the hot pressing lower die 70 are symmetrical in shape, so that the die surface of the hot pressing upper die 80 is convex. The upper hot press mold 80 is located directly above the lower hot press mold 70, and the upper hot press mold 80 can be driven by an external power mechanism (such as a power cylinder, not limited) to vertically move up and down, and the upper hot press mold 80 is connected to a fourth pumping device, so as to receive the pumping (vacuum) action or the blowing (air supply) action of the fourth pumping device.
The above structure forms the automatic molding machine for overturning and double suction pulp of the molded product, wherein the external power mechanism and the first, second, third and fourth pumping devices are not main structures of the invention, and the functions of the external power mechanism and the first, second, third and fourth pumping devices are obviously established, so the external power mechanism and the first, second, third and fourth pumping devices are not shown in the drawings, and the drawing is not complicated and difficult to distinguish.
According to the structural composition of the molded product overturning double-suction automatic molding machine, the invention also provides a manufacturing method for manufacturing the molded product by using the molded product overturning double-suction automatic molding machine, and the method comprises the following steps of:
(1) As shown in fig. 2, the suction lower die 40 is first activated to descend and fully immersed in the slurry in the headbox 22.
(2) As shown in FIG. 3, the turning mechanism 10 is started to descend from an initial intermediate position, so that the upper suction mold 30 is immersed in the slurry tank 22, and the upper suction mold 30 is positioned higher than the lower suction mold 40, and then the upper suction mold 30 and the lower suction mold 40 are started to suck slurry simultaneously, so as to form an upper blank layer on the mold surface of the upper suction mold 30 and a lower blank layer on the mold surface of the lower suction mold 40.
(3) As shown in fig. 4, when the suction time is up, the turning mechanism 10 drives the upper suction die 30 and the upper blank layer to move back to the upper position, and simultaneously drives the lower suction die 40 to move up to the upper position, so that the die surface of the lower suction die 40 and the lower blank layer are separated from the pulp surface.
(4) As shown in fig. 5, the turnover mechanism 10 is turned upside down so that the cold press lower die 50 is turned downward and the slurry suction upper die 30 together with the upper blank layer is turned upward.
(5) As shown in fig. 6, the turnover mechanism 10 is lowered, so that the cold press lower die 50 and the pulp suction lower die 40 are clamped for a period of time to squeeze the lower blank layer adsorbed on the pulp suction lower die 40, and at this time, the second pumping device connected to the pulp suction lower die 40 starts the pumping action to dewater the lower blank layer, and the lower blank layer is adsorbed on the pulp suction lower die 40.
(6) As shown in fig. 7, the turnover mechanism 10 is then moved upward to the highest position, so that the upper suction mold 30 and the cold pressing upper mold 60 are clamped for a period of time to squeeze the upper blank layer adsorbed on the upper suction mold 30, and at this time, the first pumping device connected to the upper suction mold 30 starts the pumping action to dehydrate the upper blank layer.
(7) As shown in fig. 8, the turnover mechanism 10 is lowered to the middle position, and the upper blank layer is still adsorbed on the slurry sucking upper die 30.
(8) As shown in fig. 9, the turnover mechanism 10 is turned upside down again to return the cold pressing lower die 50 upwards, and the upper blank layer is sucked by the slurry sucking upper die 30 to be downwards.
(9) As shown in fig. 10, the turning mechanism 10 drives the upper suction mold 30 to adsorb the upper blank layer and descend until the upper suction mold 30 enters the lower suction mold 40 to be clamped for a period of time, and at this time, the upper blank layer and the lower blank layer are combined into a complete thick blank by the upper suction mold 30 and the lower suction mold 40 under the condition of humidity approaching in a coextrusion way, and the thickness of the thick blank is twice that of the upper blank layer or the lower blank layer.
(10) As shown in fig. 11, the first pumping device connected to the upper suction mold 30 continues to suck the thick blank (i.e. the blank layer is sucked from the original upper blank layer), and the second pumping device connected to the lower suction mold 40 stops the pumping, and changes to a blowing (blowing) to release the thick blank from the lower suction mold 40, and then the turning mechanism 10 drives the upper suction mold 30 to suck the thick blank to move upwards beyond the original middle position (i.e. above the middle position).
(11) As shown in fig. 12, the external power mechanism connected to the lower hot press die 70 is activated to push the lower hot press die 70 to move horizontally and laterally to the position right below the upper suction die 30, i.e., right above the lower suction die 40.
(12) As shown in fig. 13, the turnover mechanism 10 drives the pulp suction upper die 30 to adsorb the thick blank and descend until the pulp suction upper die 30 enters the hot pressing lower die 70 to be clamped, and the thick blank is located between the pulp suction upper die 30 and the hot pressing lower die 70.
(13) As shown in fig. 14, the third pumping device connected to the lower hot pressing die 70 starts the pumping action to make the lower hot pressing die 70 absorb the thick blank, and the first pumping device connected to the upper pulp sucking die 30 stops the pumping action, and changes to the blowing (blowing) action to make the thick blank separate from the upper pulp sucking die 30, and then the turning mechanism 10 moves back to the initial middle position to stay, waiting for the next stroke.
(14) As shown in fig. 15, the external power mechanism connected to the lower hot press die 70 pushes the lower hot press die 70 to horizontally and horizontally move back to the right under the upper hot press die 80. At this time, the lower suction die 40, the turnover mechanism 10, the upper suction die 30, etc. can be simultaneously unfolded for the next stroke (i.e., the steps shown in fig. 2 to 11 are unfolded).
(15) As shown in fig. 16, the external power mechanism connected to the upper hot-pressing mold 80 is started to push the upper hot-pressing mold 80 to descend, and finally the upper hot-pressing mold 80 enters the lower hot-pressing mold 70 to be clamped, at this time, the thick blank is placed between the upper hot-pressing mold 80 and the lower hot-pressing mold 70, so that the upper hot-pressing mold 80 and the lower hot-pressing mold 70 together perform hot-pressing shaping operation on the thick blank for a period of time, and the thick blank is dried to be a molded product.
(16) As shown in fig. 17, when the hot press forming operation is completed, the third drawing means connected to the lower hot press mold 70 then starts the suction action to make the lower hot press mold 70 adsorb the molded product, and the fourth drawing means connected to the upper hot press mold 80 starts the blowing action to release the molded product from the upper hot press mold 80, and then the upper hot press mold 80 then moves upward to return. Then, the third pumping means connected to the lower hot press mold 70 stops pumping, and converts into blowing (blowing) to release the molded product from the lower hot press mold 70, and then the molded product is removed from the lower hot press mold 70. The removal of the molded product from the hot press lower die 70 may be performed manually or automatically by a robot.
After the steps are carried out one by one, the expected model product can be manufactured and molded, and besides the thickness of the manufactured and molded product is obviously increased by at least two times, a buffer space can be generated in the finished product of the molded product, so that the pressure-resistant and shock-absorbing effects are improved. Referring to fig. 18, in accordance with the foregoing step 2 (i.e. as shown in fig. 3), the upper suction mold 30 and the lower suction mold 40 simultaneously suck slurry in the slurry tank 22, so that when an upper blank layer and a lower blank layer are respectively adsorbed on the mold surfaces of the upper suction mold 30 and the lower suction mold 40, the mold surfaces of the upper suction mold 30 and the lower suction mold 40 may have the same shape and position, or may have the different shape and position, i.e. the mold surfaces of the upper suction mold 30 and the lower suction mold 40 may be similar to each other in shape symmetry, but have the difference in position at the part.
Therefore, as shown in fig. 19, when the upper suction mold 30 and the lower suction mold 40 are closed according to the above step 9 (i.e. as shown in fig. 10), the upper blank layer and the lower blank layer which are originally adsorbed by the upper suction mold 30 and the lower suction mold 40 respectively are combined into a thick blank with doubled thickness, at this time, it can be seen that a plurality of spaces 31 exist inside the thick blank, because the upper blank layer and the lower blank layer which are originally adsorbed by the upper suction mold 30 and the lower suction mold 40 respectively have different positions due to the shapes of the mold surfaces of the two parts, when the two parts are combined into a thick blank, the parts with the same shapes and positions are bonded, and the parts with different shapes and positions are not bonded, so after the two parts with different shapes and positions are combined into a thick blank, the parts with different positions of the original mold surfaces are generated inside the thick blank, thereby increasing the thickness and producing the effect of buffering space inside the thick blank, thereby achieving the practical efficacy of pressure resistance.
In summary, the present invention has the following excellent effects in use:
1. the present invention is designed to allow both the upper suction die 30 and the lower suction die 40 to suck pulp simultaneously in the headbox 22, thereby increasing manufacturing speed. Such a structural design is not present in any conventional molding machine.
2. In the process of the invention, the upper pulp sucking die 30 and the lower pulp sucking die 40 suck pulp simultaneously to form upper and lower embryo layers, and then the turnover mechanism 10 drives the upper and lower pulp sucking dies to be clamped after the cold die extrusion is completed rapidly, so that the upper and lower embryo layers are combined into thick embryo products with doubled thickness, thereby increasing the thickness and being beneficial to the shock absorbing effect of finished products. Meanwhile, the invention can form a plurality of spaces inside the molded product due to the choice of size design, thereby enhancing the buffering and shock absorbing effects.
3. The invention is designed to make the pulp sucking upper die 30 and the cold pressing lower die 50 respectively arranged on the top and bottom frame setting surfaces of the turnover mechanism 10 occupy only one working position together, so that the working space of the whole device can be reduced.
4. The thick blank formed in the process of the invention is an upper blank layer and a lower blank layer which are respectively adsorbed by the pulp sucking upper die and the lower die, the upper blank layer and the lower blank layer are quickly driven by the turnover mechanism 10 to finish extrusion molding with the cold pressing upper die and the lower die, and then the upper blank layer and the lower blank layer are combined into the thick blank by the die closing of the pulp sucking upper die and the lower die.
5. In the present invention, only the configuration of providing the hot-pressing die 70 and the hot-pressing upper die 80 on one side (right side in the drawing) is disclosed (this is referred to as a single-head machine), and the hot-pressing die 70 and the hot-pressing upper die 80 are capable of heating and pressurizing the thick blank to completely dry the thick blank into a molded product, and the heating and pressurizing time is proportional to the volume of the thick blank, so that if the working time of the hot-pressing lower die 70 and the hot-pressing upper die 80 is required to be longer due to the thickness of the thick blank, the performance of the paste sucking and the extrusion forming is affected (sometimes the operation is required to be stopped and waiting) and the working hours are wasted. Therefore, the present invention can also arrange two groups of the hot pressing lower die 70 and the hot pressing upper die 80 so that they are respectively positioned at two sides of the pulp sucking and extrusion forming operation (namely, the right side and the left side are respectively referred to as a double-head machine), so that after the pulp sucking and extrusion forming operation of the first round is completed, the pulp sucking and extrusion forming operation of the second round can be performed by taking away the hot pressing lower die 70 at one side (for example, the right side), and taking away the thick blank by taking away the hot pressing lower die 70 at the other side (for example, the left side), and the two sides of the hot pressing lower die 70 and the hot pressing upper die 80 alternately take away thick blanks.
6. The thick blank formed in the process of the invention is carried by the hot-pressing lower die 70 to be clamped with the hot-pressing upper die 80 for hot-pressing shaping work, if the hot-pressing time is longer, the hot-pressing lower die 70 and the hot-pressing upper die 80 can be arranged to have two groups on the same side so as to carry out two-stage hot-pressing shaping work on the same thick blank, thereby reducing the whole hot-pressing working time and leading the surface of the molded product to be more excellent.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (10)
1. A molding product upset double suction thick liquid automatic molding machine, characterized by that includes:
a turnover mechanism which is supported by installation and exists in a main frame space and can be controlled to perform a turnover action of 180 degrees up and down, the top surface and the bottom surface of the turnover mechanism are respectively provided with a erection surface, and the whole turnover mechanism can be controlled to perform a vertical displacement action;
the slurry box is arranged below the main frame space, slurry is contained in the slurry box, and the top surface of the slurry box is in an opening shape;
the pulp sucking upper die is arranged on the mounting surface of the bottom surface of the turnover mechanism, so that the die surface of the pulp sucking upper die faces downwards when the pulp sucking upper die does not act, the pulp sucking upper die can do turnover action and up-down displacement action along with the turnover mechanism, and the pulp sucking upper die is connected with a first pumping device and can receive the pumping action or blowing action of the first pumping device;
the pulp sucking lower die is supported by installation and exists at the top surface opening of the pulp box, the die surface of the pulp sucking lower die faces upwards, the die surface of the pulp sucking lower die is higher than the pulp surface of the pulp box when the pulp sucking lower die does not act, the pulp sucking lower die is connected with a second pumping device and can receive the pumping action or blowing action of the second pumping device, and the pulp sucking lower die can be controlled to do up-down displacement action;
the cold pressing lower die is arranged on the mounting surface of the top surface of the turnover mechanism, so that the die surface of the cold pressing lower die faces upwards when the cold pressing lower die does not act, and the cold pressing lower die can perform turnover and up-down displacement actions along with the turnover mechanism;
the cold pressing upper die is arranged on the top bottom surface of the main frame space, and the die surface of the cold pressing upper die is constantly downward;
at least one hot pressing die which is supported by installation and exists in a side frame space, the side frame space is positioned at the side edge of the main frame space, the die surface of the hot pressing die faces upwards, the hot pressing die can be controlled to horizontally and transversely move, the position of the hot pressing die is positioned at one side of the turnover mechanism, and the hot pressing die is connected with a third pumping device and can receive the pumping action or blowing action of the third pumping device; and
At least one hot pressing upper die is arranged on the top bottom surface of the side frame space, the die surface of the hot pressing upper die faces downwards, the hot pressing upper die is positioned right above the hot pressing lower die, the hot pressing upper die can be controlled to vertically move up and down, and the hot pressing upper die is connected with a fourth pumping device and can receive the pumping action or blowing action of the fourth pumping device.
2. The automatic molding machine for turning over and double suction of molded products according to claim 1, wherein the upper suction die and the lower suction die are symmetrically formed.
3. The automatic molding machine for turning over and double suction of molded products according to claim 1, wherein the mold surface of the cold pressing mold is symmetrical in shape to the mold surface of the suction lower mold, and the mold surface of the cold pressing upper mold is symmetrical in shape to the mold surface of the suction upper mold.
4. The automatic molding machine for turning over and double suction of molded products according to claim 1, wherein the die surface of the hot pressing die is symmetrical in shape to the die surface of the upper suction die, and the die surface of the upper hot pressing die is symmetrical in shape to the die surface of the lower hot pressing die.
5. A method for manufacturing a molded product by using a molded product overturning double-suction automatic molding machine is characterized in that the molded product overturning double-suction automatic molding machine comprises the following steps:
a turnover mechanism which is supported by installation and exists in a main frame space and can be controlled to perform a turnover action of 180 degrees up and down, the top surface and the bottom surface of the turnover mechanism are respectively provided with a erection surface, and the whole turnover mechanism can be controlled to perform a vertical displacement action;
the slurry box is arranged below the main frame space, slurry is contained in the slurry box, and the top surface of the slurry box is in an opening shape;
the pulp sucking upper die is arranged on the mounting surface of the bottom surface of the turnover mechanism, so that the die surface of the pulp sucking upper die faces downwards when the pulp sucking upper die does not act, the pulp sucking upper die can do turnover action and up-down displacement action along with the turnover mechanism, and the pulp sucking upper die is connected with a first pumping device and can receive the pumping action or blowing action of the first pumping device;
the pulp sucking lower die is supported by installation and exists at the top surface opening of the pulp box, the die surface of the pulp sucking lower die faces upwards, the die surface of the pulp sucking lower die is higher than the pulp surface of the pulp box when the pulp sucking lower die does not act, the pulp sucking lower die is connected with a second pumping device and can receive the pumping action or blowing action of the second pumping device, and the pulp sucking lower die can be controlled to do up-down displacement action;
the cold pressing lower die is arranged on the mounting surface of the top surface of the turnover mechanism, so that the die surface of the cold pressing lower die faces upwards when the cold pressing lower die does not act, and the cold pressing lower die can perform turnover and up-down displacement actions along with the turnover mechanism;
the cold pressing upper die is arranged on the top bottom surface of the main frame space, and the die surface of the cold pressing upper die is constantly downward;
at least one hot pressing die which is supported by installation and exists in a side frame space, the side frame space is positioned at the side edge of the main frame space, the die surface of the hot pressing die faces upwards, the hot pressing die can be controlled to horizontally and transversely move, the position of the hot pressing die is positioned at one side of the turnover mechanism, and the hot pressing die is connected with a third pumping device and can receive the pumping action or blowing action of the third pumping device; and
At least one hot pressing upper die arranged on the top bottom surface of the side frame space, the die surface of the hot pressing upper die facing downwards, the hot pressing upper die being positioned right above the hot pressing lower die, the hot pressing upper die being controlled to vertically move up and down, the hot pressing upper die being connected with a fourth pumping device for receiving the pumping action or blowing action of the fourth pumping device;
the following steps are carried out:
(1) Starting the pulp suction lower die to descend and completely immersing the pulp into the pulp in the pulp box;
(2) The turning mechanism is started to descend from the initial middle position, so that the upper pulp sucking die is immersed into the pulp in the pulp box, the position of the upper pulp sucking die is higher than that of the lower pulp sucking die, and then the upper pulp sucking die and the lower pulp sucking die are started to suck pulp simultaneously so as to form an upper blank layer on the die surface of the upper pulp sucking die and a lower blank layer on the die surface of the lower pulp sucking die;
(3) When the slurry sucking time is up, the turnover mechanism drives the slurry sucking upper die and the upper blank layer to move back to the position, and simultaneously the slurry sucking lower die is driven to move up to the high position, so that the die surface of the slurry sucking lower die and the lower blank layer are separated from the slurry surface;
(4) Turning the turning mechanism up and down to change the cold pressing lower die into downward, and changing the slurry sucking upper die and the upper blank layer into upward;
(5) The turnover mechanism is lowered, so that the cold pressing lower die and the pulp sucking lower die are clamped to extrude the lower blank layer adsorbed on the pulp sucking lower die, at the moment, a second pumping device connected with the pulp sucking lower die starts a pumping action to dehydrate the lower blank layer, and the lower blank layer is adsorbed on the pulp sucking lower die;
(6) The turnover mechanism moves upwards to enable the slurry sucking upper die and the cold pressing upper die to be clamped so as to squeeze an upper blank layer adsorbed on the slurry sucking upper die, and at the moment, a first pumping device connected with the slurry sucking upper die starts a pumping function to dehydrate the upper blank layer;
(7) The turnover mechanism is lowered to the middle position, and the upper blank layer is adsorbed on the slurry sucking upper die;
(8) The turnover mechanism turns up and down again, so that the cold pressing lower die faces upwards, and the slurry sucking upper die adsorbs the upper blank layer to be downward;
(9) The turnover mechanism drives the slurry sucking upper die to adsorb the upper blank layer to descend until the slurry sucking upper die enters the slurry sucking lower die to be matched with the lower blank layer, so that the upper blank layer and the lower blank layer are combined into a thick blank by the slurry sucking upper die and the slurry sucking lower die in a coextrusion mode;
(10) The first pumping device connected with the pulp sucking upper die is enabled to continuously suck the thick embryo, and the second pumping device connected with the pulp sucking lower die is enabled to stop the pumping action and convert into blowing action, so that the thick embryo is separated from the pulp sucking lower die, and then the turnover mechanism drives the pulp sucking upper die to suck the thick embryo to move upwards to exceed the initial middle position;
(11) Starting the hot pressing lower die to horizontally and transversely move to the position right below the pulp sucking upper die at the moment;
(12) The turnover mechanism drives the pulp suction upper die to adsorb the thick blank to descend until the pulp suction upper die enters the hot pressing lower die for die assembly, and the thick blank is arranged between the pulp suction upper die and the hot pressing lower die;
(13) The third pumping device connected with the hot pressing lower die starts the pumping action to enable the hot pressing lower die to absorb the thick embryo, meanwhile, the first pumping device connected with the pulp sucking upper die stops the pumping action and is converted into the blowing action to enable the thick embryo to be separated from the pulp sucking upper die, and then the turnover mechanism moves back to the initial middle position immediately;
(14) Horizontally and transversely moving the hot-pressing lower die back to the position right below the hot-pressing upper die;
(15) Starting the hot-pressing upper die to descend until the hot-pressing upper die enters the hot-pressing lower die to be clamped, so that the thick blank is arranged between the hot-pressing upper die and the hot-pressing lower die, and the hot-pressing upper die and the hot-pressing lower die perform hot-pressing shaping operation on the thick blank together to dry the thick blank into a molded product;
(16) When the hot-press shaping operation is completed, the third pumping device connected with the hot-press lower die starts pumping action to enable the hot-press lower die to absorb the molded product, and the fourth pumping device connected with the hot-press upper die starts blowing action to enable the molded product to be separated from the hot-press upper die, and then the hot-press upper die moves upwards to return; then, the third pumping device connected with the hot-pressing lower die stops pumping action and is converted into blowing action, so that the molded product is separated from the hot-pressing lower die, and then the molded product is taken out from the hot-pressing lower die.
6. The method of claim 5, wherein the thick blank has a thickness at least twice as large as the thickness of the upper blank layer or the lower blank layer.
7. The method of claim 5, wherein the step of removing the molded product from the hot pressing mold is performed manually.
8. The method of claim 5, wherein the step of removing the molded product from the hot press mold is performed by a robot.
9. The method of claim 5, wherein the upper and lower blank layers are respectively adhered by the upper and lower suction molds, and have the same shape and position and different shapes and positions.
10. The method of claim 9, wherein when the upper blank layer and the lower blank layer absorbed by the upper and lower suction molds are combined to form a thick blank, the same parts of the two molds and positions are bonded, the different parts of the two molds and positions are not bonded, and a space exists.
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CN109457546B (en) * | 2018-11-09 | 2020-12-22 | 重庆凯成科技有限公司 | Laminated paper-plastic production method |
CN109736139B (en) * | 2018-12-29 | 2021-06-08 | 永发(江苏)模塑包装科技有限公司 | Forming equipment and method for pulp molding |
CN109706795A (en) * | 2019-01-17 | 2019-05-03 | 永发(江苏)模塑包装科技有限公司 | A kind of two-sided high glossy paper pulp moulding product formation system and forming method |
CN110629593B (en) * | 2019-09-28 | 2021-11-12 | 东莞市力达科创实业有限公司 | Production process of pulp molded product inverted buckle |
CN114892452A (en) * | 2022-03-29 | 2022-08-12 | 东北林业大学 | High-strength thick-wall fiber molding material and preparation method thereof |
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