CN108442183B - Automatic forming machine for double-time down-suction slurry of molded product and manufacturing method - Google Patents
Automatic forming machine for double-time down-suction slurry of molded product and manufacturing method Download PDFInfo
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- CN108442183B CN108442183B CN201810219379.3A CN201810219379A CN108442183B CN 108442183 B CN108442183 B CN 108442183B CN 201810219379 A CN201810219379 A CN 201810219379A CN 108442183 B CN108442183 B CN 108442183B
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- 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
Abstract
A double-time down-sucking automatic shaper for moulding products is composed of a down-sucking mould, a first and a second embryo layers, a cold pressing mould, a thick embryo layer, a hot pressing mould, and a hot pressing shaping mould.
Description
Technical Field
The present invention relates to a double-suction automatic molding machine for molded products and a method for manufacturing molded products, and more particularly, to a double-suction automatic molding machine for molded products and a method for manufacturing molded products, which can increase the thickness and surface of the molded products.
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 is absorbed by a pulp absorbing mold to adhere to the pulp, and the pulp is manufactured by a hot pressing shaping technology, so that the pulp is distinguished from a plastic product, and the plastic product is generally called a molded product. 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 lower suction mold into a slurry box filled with slurry, then vacuum suction is carried out on the slurry in the slurry box through a pumping device by the suction mold, so that a 'embryo layer' is formed on the mold surface of the suction mold, when the suction mold rises and leaves the slurry box, the embryo layer is gradually dehumidified by continuous suction, then the suction mold and the embryo layer are lifted together and then are clamped with a cold pressing mold to squeeze the embryo layer, so that the slurry layer reduces the humidity and is molded into a 'primary embryo', then the suction mold adsorbs the primary embryo to leave the cold pressing mold, the operation of suction molding is completed, and then 'hot press molding' is carried out on the embryo layer after suction molding by the hot pressing mold, 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, through experience of contacting the molded products for a long period of time, that the following defects exist in the production of the molded products:
1. 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, the shock absorbing effect is poor, 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, if the molded product with better shock absorbing effect (such as packaging materials with better shock absorbing effect) is required to be manufactured with thicker thickness, the traditional manufacturing method is difficult to achieve.
2. 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 prior molded products have the existing defects that the thickness is difficult to increase and the surface has a non-optimal 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 double-time lower pulp suction automatic forming machine for a molded product and a manufacturing method for manufacturing the molded product, wherein the structure and the manufacturing process are brand new.
Another main object of the present invention is to provide an automatic molding machine for double suction of molded products and a method for manufacturing molded products.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a double-time lower pulp sucking automatic forming machine for molded products comprises: a slurry box for containing slurry, the top surface of which is open; a lower suction pulp mould which is supported by installation and exists at the top surface opening of the pulp box, the mould surface of the lower suction pulp mould faces upwards, the mould surface of the lower suction pulp mould is higher than the pulp surface of the pulp box when the lower suction pulp mould does not act, the lower suction pulp mould is driven by an external power mechanism to do vertical up-down displacement action when required, and the lower suction pulp mould is connected with a first pumping device and can receive the pumping action or blowing action of the first pumping device; the cold pressing upper die is hung on a guide rail and is positioned above the lower pulp suction die, the die surface of the cold pressing upper die faces downwards, the die surface of the cold pressing upper die is symmetrical to the die surface of the lower pulp suction die, the cold pressing upper die is driven by an external power mechanism to do horizontal and transverse displacement motion along the guide rail when required, and the cold pressing upper die is connected with a second pumping device and can accept the pumping action or blowing action of the second pumping device; the cold pressing lower die is driven by an external power mechanism to do vertical up-down displacement action when needed, and is connected with a third pumping device to receive the pumping action or blowing action of the third pumping device; the hot pressing upper die and the cold pressing upper die are connected at intervals and are hung on the guide rail together, the hot pressing upper die and the cold pressing upper die are driven by the same external power mechanism to perform horizontal and transverse displacement motion along the guide rail together, the die surface of the hot pressing upper die faces downwards, the die surface of the hot pressing upper die is identical to the die surface of the cold pressing upper die in shape, 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; the hot pressing lower die is driven by an external power mechanism to do vertical up-down displacement action when needed, and is connected with a fifth pumping device to receive the pumping action or blowing action of the fifth pumping device; and the material receiving disc is arranged on the same side as the hot pressing lower die and exists outside the hot pressing lower die, the material receiving disc is driven by an external power mechanism to do vertical up-and-down displacement motion when needed, and the material receiving disc is mainly provided with a platform for receiving a finished product of a molded product to stay.
The invention also provides a manufacturing method of the molded product by the double-time lower pulp suction automatic molding machine, which comprises the following steps of:
(1) Starting an external power mechanism connected with the lower pulp suction die, driving the lower pulp suction die to descend and dip into the pulp in the pulp box, and starting pulp suction through a connected first pumping device so as to form a first embryo layer on the die surface of the lower pulp suction die;
(2) When the suction time is up, the lower suction mould adsorbs the first embryo layer to move upwards and away from the pulp surface to return to the original position, and in the process, the first pumping device continuously sucks the first embryo layer to dehydrate and dehumidify;
(3) Starting an external power mechanism connected with the lower pulp suction die, driving the lower pulp suction die to absorb the first blank layer to rise, entering the cold pressing upper die to be matched with the die to extrude the first blank layer for dehydration, starting a suction effect by a second suction device connected with the cold pressing upper die to absorb the first blank layer, stopping the suction effect by the first suction device connected with the lower pulp suction die, and converting the suction effect into a blowing effect to enable the first blank layer to be separated from the lower pulp suction die;
(4) Starting an external power mechanism connected with the cold pressing upper die, driving the cold pressing upper die to absorb the first blank layer and transversely move to the position right above the cold pressing lower die along the guide rail, and simultaneously enabling the hot pressing upper die to synchronously move along the guide rail along with the cold pressing upper die; simultaneously, the lower pulp sucking die descends and is immersed into the pulp in the pulp box again, and pulp is sucked again through the connected first pumping device, so that a second embryo layer is formed on the die surface of the lower pulp sucking die;
(5) The cold pressing lower die starts the suction effect through a third pumping device connected with the cold pressing lower die, an external power mechanism connected with the cold pressing lower die is started at the same time, the cold pressing lower die is driven to rise into the cold pressing upper die to be clamped and extruded to dehydrate the first embryo layer, then the third pumping device connected with the cold pressing lower die stops the suction effect and is converted into the blowing effect, the first embryo layer is separated from the cold pressing lower die, and the second pumping device connected with the cold pressing upper die still starts the suction effect to absorb the first embryo layer; at the same time of the process, the lower suction pulp mould also adsorbs the second embryo layer to move upwards away from the pulp surface to return to the original position, and the first pumping device continuously sucks the second embryo layer to dehydrate and dehumidify;
(6) An external power mechanism connected with the cold pressing lower die drives the cold pressing lower die to descend and return, the cold pressing upper die adsorbs the first blank layer to reversely move and return to the position right above the lower pulp suction die along the guide rail, and meanwhile, the hot pressing upper die reversely moves along the guide rail along with the cold pressing upper die;
(7) The external power mechanism connected with the lower pulp suction die drives the lower pulp suction die to absorb the second embryo layer to rise, and the second embryo layer is fed into the cold pressing upper die to be clamped, at the moment, the first embryo layer and the second embryo layer are combined between the cold pressing upper die and the lower pulp suction die in a coextrusion mode to form a thick embryo, the thickness of the thick embryo is twice that of the first embryo layer or the second embryo layer, in the process, the second pumping device connected with the cold pressing upper die still continuously pumps to absorb the thick embryo, and meanwhile, the first pumping device connected with the lower pulp suction die stops pumping and converts the pumping action into a blowing action, so that the thick embryo is separated from the lower pulp suction die;
(8) An external power mechanism connected with the cold pressing upper die drives the cold pressing upper die to absorb the thick blank to transversely move to the position right above the hot pressing lower die along the guide rail, and the hot pressing upper die synchronously moves along the guide rail along with the cold pressing upper die in the process;
(9) Starting an external power mechanism connected with the hot pressing lower die to drive the hot pressing lower die to rise into the cold pressing upper die to clamp and squeeze the thick blank, starting a fifth pumping device connected with the hot pressing lower die to perform pumping action in the process, stopping pumping action by a second pumping device connected with the cold pressing upper die, converting into blowing action, and separating the thick blank from the cold pressing upper die, wherein the thick blank is converted and adsorbed by the hot pressing lower die;
(10) The hot pressing lower die adsorbs the thick embryo to descend to the original position, and the thick embryo is continuously subjected to the dehumidification effect of suction dehydration in the process;
(11) An external power mechanism connected with the hot pressing upper die is started to drive the hot pressing upper die to transversely move to the position right above the hot pressing lower die along the guide rail, and meanwhile, the cold pressing upper die can synchronously move to the position right above the lower pulp suction die along the guide rail;
(12) Starting an external power mechanism connected with the hot-pressing lower die to drive the hot-pressing lower die to adsorb the thick blank and rise into the hot-pressing upper die to be clamped, wherein the thick blank is arranged between the hot-pressing upper die and the hot-pressing lower die at the moment, so that the hot-pressing upper die and the hot-pressing lower die perform hot-pressing shaping operation on the thick blank for a certain time together, and the thick blank is completely dried to form a molded product;
(13) When the hot-press shaping operation time is up, the fourth pumping device connected with the hot-press upper die starts pumping action to absorb the molded product, and the fifth pumping device connected with the hot-press lower die starts blowing action to separate the molded product from the hot-press lower die, and then the hot-press lower die moves downwards to return; the external power mechanism connected with the hot pressing upper die drives the hot pressing upper die to reversely move to the position right above the material receiving disc along the guide rail, and simultaneously the cold pressing upper die synchronously moves to the position right above the hot pressing lower die along the guide rail;
(14) Starting an external power mechanism connected with the material receiving disc to drive the material receiving disc to rise to a specified position with a falling distance from the hot pressing upper die to stay, wherein the falling distance can enable the molded product to fall smoothly without influencing the follow-up leaving action of the hot pressing upper die, and then stopping the suction action of a fourth pumping device connected with the hot pressing upper die to convert into a blowing action so as to enable the molded product to be separated from the hot pressing upper die, so that a finished product of the molded product is blown down on a platform of the material receiving disc to stay;
(15) An external power mechanism connected with the hot-pressing upper die drives the hot-pressing upper die to transversely move to the position right above the hot-pressing lower die along the guide rail, and simultaneously the cold-pressing upper die synchronously moves to the position right above the lower pulp suction die along the guide rail along the hot-pressing upper die; at the same time, the external power mechanism connected with the receiving tray drives the receiving tray to descend to the original position, so that the finished products of the molded products can be taken off and collected to finish a round of circulation.
In the method for manufacturing the molded product by the double-suction automatic molding machine, the finished product of the molded product can be taken off from the receiving tray by manual operation or automatic taking off by a mechanical arm.
Compared with the prior art, the invention has obvious progress:
1. the invention discloses a method for manufacturing a thick blank by using a lower pulp sucking die, which comprises the steps of enabling the lower pulp sucking die to enter a pulp box for sucking pulp twice so as to respectively form a first blank layer and a second blank layer, matching a cold pressing upper die to receive the first blank layer, then extruding the first blank layer with a cold pressing lower die, then receiving the second blank layer, extruding the second blank layer together into a thick blank, and finally receiving and hot-pressing the thick blank by the hot pressing upper die and the hot pressing lower die to form a molded product. The composition and method of manufacture is not presently available in any conventional molded product manufacturing machine.
2. The thick blank formed in the process of the invention is sucked by the suction pulp mould twice in the pulp box to form a first blank layer and a second blank layer respectively, and the first blank layer is received by the cold pressing upper mould, then is extruded by the cold pressing lower mould, and then is received by the second blank layer to be co-extruded into the thick blank with doubled thickness. Because the outer surface of the thick blank is the excellent surface formed by tightly extruding the lower pulp sucking die and the cold pressing upper die, the outer surfaces of the molded products after the hot pressing upper die and the hot pressing lower die are both excellent surfaces, and the use is enough to promote the overall value sense of packaged goods.
Drawings
FIG. 1 is a schematic view showing the constitution of a double-down pulp automatic molding machine for molded products according to the present invention.
Fig. 2 to 16 are schematic views showing successive steps of a manufacturing method for manufacturing a molded product according to the present invention.
In the figure:
1. automatic forming machine 10 and lower pulp suction die
11. Guide rail 20, stock box
31. Cold press die 32 and cold press die
41. Hot press upper die 42 and hot press lower die
50. Receiving tray P and finished product
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 double-time lower pulp suction automatic forming machine for a molded product and a manufacturing method for manufacturing the molded product by the double-time lower pulp suction automatic forming machine for the molded product.
The overall structure of the double-suction automatic molding machine for molded products of the invention is shown in fig. 1, which is an automatic molding machine 1 particularly suitable for manufacturing molded products, and mainly comprises the following components in terms of structure:
a slurry box 20 for containing slurry therein, the top surface being open.
The lower suction pulp mould 10 is supported by installation and exists at the top surface opening of the pulp box 20, the mould surface of the lower suction pulp mould 10 faces upwards, when not in operation, the mould surface of the lower suction pulp mould 10 is higher than the pulp surface of the pulp box 20, the mould surface of the lower suction pulp mould 10 is an outer convex part, the lower suction pulp mould 10 is driven by an external power mechanism (such as a power cylinder body and is not limited) to perform vertical up-down displacement when required, and the lower suction pulp mould 10 is connected with a first pumping device and can receive the pumping (vacuum) action or the blowing (air supply) action of the first pumping device.
The cold pressing upper die 31 is hung on a guide rail 11 and is located above the lower pulp suction die 10, the die surface of the cold pressing upper die 31 faces downwards, the die surface of the cold pressing upper die 31 is symmetrical to the die surface of the lower pulp suction die 10, so that the die surface of the cold pressing upper die 31 is concave, the cold pressing upper die 31 is driven by an external power mechanism (such as a motor, a sliding rail and a roller, and is not limited by the arrangement) to perform horizontal transverse displacement motion along the guide rail 11 when required, and the cold pressing upper die 31 is connected with a second pumping device to receive the pumping (vacuum) action or the blowing (air supply) action of the second pumping device.
The cold pressing die 32 is disposed on a platform higher than the headbox 20 on one side (e.g. left side) of the headbox 20, the die surface of the cold pressing die 32 faces upward, and the die surface of the cold pressing die 32 is symmetrical to the die surface of the cold pressing die 31, so that the die surface of the cold pressing die 32 is convex, the cold pressing die 32 is driven by an external power mechanism (e.g. a power cylinder, not limited thereto) to perform vertical up-down displacement when needed, and the cold pressing die 32 is connected with a third pumping device to receive the pumping (vacuum) or blowing (air) action of the third pumping device.
A hot pressing upper die 41 is connected with the cold pressing upper die 31 at a fixed distance and is hung on the guide rail 11, the hot pressing upper die 41 and the cold pressing upper die 31 are driven by the same external power mechanism (such as a motor, a sliding rail and a roller, not limited by the arrangement) to perform horizontal and horizontal displacement action along the guide rail 11, the die surface of the hot pressing upper die 41 faces downwards, the die surface of the hot pressing upper die 41 is the same as the die surface of the cold pressing upper die 31, so that the die surface of the hot pressing upper die 41 is concave, and the hot pressing upper die 41 is connected with a fourth pumping device to receive the pumping (vacuum) action or the blowing (air supply) action of the fourth pumping device.
A hot-pressing die 42 disposed on another platform higher than the headbox 20 on the other side (e.g., right side) of the headbox 20, wherein the die surface of the hot-pressing die 42 faces upward, and the die surface of the hot-pressing die 42 is symmetrical to the die surface of the hot-pressing die 41, so that the die surface of the hot-pressing die 42 is convex, the hot-pressing die 42 is driven by an external power mechanism (e.g., a power cylinder, not limited thereto) to perform vertical upward and downward displacement when needed, and the hot-pressing die 42 is connected to a fifth pumping device for receiving the pumping (vacuum) or blowing (air supply) of the fifth pumping device.
A receiving tray 50 is disposed on the same platform as the lower hot pressing die 42 and exists outside the lower hot pressing die 42, the receiving tray 50 is driven by an external power mechanism (such as a power cylinder, not limited thereto) to perform vertical up-and-down displacement when needed, and the receiving tray 50 mainly has a platform for receiving the product P of the molded product.
The above structure forms the double-down pulp sucking automatic forming machine of the molded product, wherein the external power mechanism and the first, second, third, fourth and fifth pumping devices are not main structures of the invention, and the functions of the external power mechanism and the first, second, third, fourth and fifth pumping devices are obviously established, so the external power mechanism and the first, third, fourth and fifth pumping devices are not shown in the drawings, and the drawing is not too complex and difficult to distinguish.
According to the structural composition of the double-suction automatic molding machine for molded products, the invention also provides a manufacturing method for manufacturing the molded products by the double-suction automatic molding machine for molded products, which comprises the following steps of:
(1) As shown in fig. 2, an external power mechanism connected to the lower suction die 10 is started to drive the lower suction die 10 to descend and dip into the slurry in the slurry tank 20, and suction is started through a first pumping device connected to form a first embryo layer on the die surface of the lower suction die 10.
(2) As shown in fig. 3, when the suction time is up, the lower suction die 10 sucks the first blank layer up and moves away from the pulp surface to the original position (at the top opening of the pulp tank 20). In the process, the first pumping device continuously pumps to dehydrate and dehumidify the first embryo layer.
(3) As shown in fig. 4, the external power mechanism connected to the lower suction mold 10 is started to drive the lower suction mold 10 to absorb the first blank layer and rise, the first blank layer is clamped in the cold pressing upper mold 31 to be dehydrated, then the second pumping device connected to the cold pressing upper mold 31 starts the pumping action to absorb the first blank layer, and simultaneously the first pumping device connected to the lower suction mold 10 stops the pumping action and is converted into blowing (air supply) action to disconnect the first blank layer from the lower suction mold 10.
(4) As shown in fig. 5, an external power mechanism connected to the cold pressing upper die 31 is started to drive the cold pressing upper die 31 to adsorb the first blank layer and move transversely along the guide rail 11 to a position right above the cold pressing lower die 32, and simultaneously the hot pressing upper die 41 moves synchronously along the guide rail 11 along with the cold pressing upper die 31. Simultaneously with this process, the downdraft die 10 is lowered and immersed again into the stock in the headbox 20 and again sucked by the attached first pumping means to form a second stock layer on the die face of the downdraft die 10.
(5) As shown in fig. 6, the cold pressing die 32 starts the suction action through the connected third pumping device, and at the same time, the external power mechanism connected to the cold pressing die 32 is started to drive the cold pressing die 32 to rise into the cold pressing upper die 31 to clamp and squeeze the first blank layer for dehydration, then the third pumping device connected to the cold pressing die 32 stops the suction action and is converted into the blowing (blowing) action, so that the first blank layer is separated from the cold pressing lower die 32, and the second pumping device connected to the cold pressing upper die 31 still starts the suction action to adsorb the first blank layer. At the same time of this process, the lower suction mold 10 also sucks the second blank layer up and moves away from the pulp surface to the original position (at the top opening of the pulp box 20), and the first pumping device continues the pumping action to dehydrate and dehumidify the second blank layer.
(6) As shown in fig. 7, the external power mechanism connected to the cold pressing lower die 32 drives the cold pressing lower die 32 to descend and return, and the cold pressing upper die 31 adsorbs the first blank layer to reversely move along the guide rail 11 and return to the position right above the lower suction die 10, and meanwhile, the hot pressing upper die 41 reversely moves along the guide rail 11 along with the cold pressing upper die 31.
(7) As shown in fig. 8, the external power mechanism connected to the lower suction mold 10 drives the lower suction mold 10 to absorb the second blank layer to rise, and the second blank layer enters the cold pressing upper mold 31 to be clamped, at this time, the first blank layer and the second blank layer are co-extruded and combined between the cold pressing upper mold 31 and the lower suction mold 10 to form a thick blank, the thickness of the thick blank is twice as large as that of the first blank layer or the second blank layer, during the process, the second pumping device connected to the cold pressing upper mold 31 still continues to pump to absorb the thick blank, and at the same time, the first pumping device connected to the lower suction mold 10 stops pumping, and converts the pumping action into blowing (blowing) action to disconnect the thick blank from the lower suction mold 10, at this time, the blowing (blowing) action of the first pumping device also causes the thick blank to be dehumidified.
(8) As shown in fig. 9, an external power mechanism connected to the cold pressing upper die 31 drives the cold pressing upper die 31 to absorb the thick blank and move transversely along the guide rail 11 to right above the hot pressing lower die 42, and in the process, the hot pressing upper die 41 moves synchronously along the guide rail 11 and along the cold pressing upper die 31. At the same time as the process, the lower suction die 10 may start to perform the initial action of the next round of circulation, that is, the lower suction die 10 is lowered into the slurry in the slurry tank 20, and suction is started by the connected first pumping device, so as to form a first embryo layer belonging to the next round of circulation on the die surface of the lower suction die 10.
(9) As shown in fig. 10, the external power mechanism connected to the hot pressing lower die 42 is started to drive the hot pressing lower die 42 to rise into the cold pressing upper die 31 to clamp and squeeze the thick blank, and the fifth pumping device connected to the hot pressing lower die 42 is started to perform pumping action, so that the thick blank can be rapidly dehydrated under both upper and lower pumping actions, and then the second pumping device connected to the cold pressing upper die 31 stops pumping action and is converted into blowing (air supplying) action, so that the thick blank is separated from the cold pressing upper die 31, and the thick blank is absorbed by the hot pressing lower die 42.
(10) As shown in fig. 11, the hot pressing lower die 42 then sucks the thick blank to descend to the original position, and the wet-reducing effect of suction dehydration is continuously performed on the thick blank during the process.
(11) As shown in fig. 12, an external power mechanism connected to the hot pressing upper die 41 is started to drive the hot pressing upper die 41 to move transversely along the guide rail 11 to be right above the hot pressing lower die 42, and simultaneously the cold pressing upper die 31 also moves synchronously along the guide rail 11 to be right above the lower pulp suction die 10 along with the hot pressing upper die 41.
(12) As shown in fig. 13, an external power mechanism connected to the lower hot-pressing mold 42 is started to drive the lower hot-pressing mold 42 to adsorb the thick blank and rise into the upper hot-pressing mold 41 to be clamped, and the thick blank is located between the upper hot-pressing mold 41 and the lower hot-pressing mold 42, so that the upper hot-pressing mold 41 and the lower hot-pressing mold 42 together perform hot-pressing shaping operation on the thick blank for a certain time, and the thick blank is completely dried to form a molded product.
(13) As shown in fig. 14, as soon as the hot press forming operation time is reached, the fourth drawing means connected to the upper hot press die 41 is activated to draw the molded product, and the fifth drawing means connected to the lower hot press die 42 is activated to blow (blow) the molded product to release from the lower hot press die 42, and then the lower hot press die 42 is moved downward to return. The external power mechanism connected with the hot pressing upper die 41 drives the hot pressing upper die 41 to reversely move to be right above the material receiving tray 50 along the guide rail 11, and simultaneously, the cold pressing upper die 31 synchronously moves to be right above the hot pressing lower die 42 along the guide rail 11 along with the hot pressing upper die 41.
(14) As shown in fig. 15, the external power mechanism connected to the receiving tray 50 is started to drive the receiving tray 50 to rise to a specified position with a falling distance from the hot pressing upper die 41 for stopping, the falling distance just allows the molded product to fall smoothly, the subsequent leaving action of the hot pressing upper die 41 is not affected, and then the fourth pumping device connected to the hot pressing upper die 41 stops pumping action and is converted into blowing (air supply) action, so that the molded product is separated from the hot pressing upper die 41, and the finished product P of the molded product is blown down on the platform of the receiving tray 50 for stopping.
(15) As shown in fig. 16, the external power mechanism connected to the hot pressing upper die 41 drives the hot pressing upper die 41 to move laterally along the guide rail 11 to right above the hot pressing lower die 42, and simultaneously the cold pressing upper die 31 also moves synchronously along the guide rail 11 to right above the lower suction die 10 along with the hot pressing upper die 41. At the same time, the external power mechanism connected with the receiving tray 50 drives the receiving tray 50 to descend to the original position, so that the finished products P of the molded products can be taken out and collected to complete a round of circulation. The removal of the molded product P from the tray 50 may be performed manually, directly, or automatically by a robotic arm.
After the steps are carried out one by one, the expected model product can be manufactured and molded, and the thickness of the manufactured and molded product is obviously doubled. Therefore, the invention has the following excellent effects in manufacturing and using:
1. the invention discloses a method for sucking pulp in a pulp box 20 by a lower pulp sucking die 10 twice, which is used for forming a first embryo layer and a second embryo layer respectively, and is matched with a cold pressing upper die 31 to receive the first embryo layer firstly and then extrude with a cold pressing lower die 32, then receive the second embryo layer and extrude into a thick embryo product together, and finally the thick embryo product is received by a hot pressing upper die 41 and a hot pressing lower die 42 and is hot pressed and shaped into a molded product. The composition and method of manufacture is not presently available in any conventional molded product manufacturing machine.
2. The thick blanks formed in the process of the invention are sucked by the suction box 20 twice by the suction box 10 to form a first blank layer and a second blank layer respectively, and the first blank layer is received by the cold pressing upper die 31 and then extruded by the cold pressing lower die 32, and then the second blank layer is received and co-extruded into thick blanks with doubled thickness. Because the outer surface of the thick blank is the superior surface formed by tightly extruding the lower pulp sucking die 10 and the cold pressing upper die 31, the outer surfaces of the molded products after hot pressing and shaping by the hot pressing upper die 41 and the hot pressing lower die 42 are both superior surfaces, and the whole value sense of the packaged goods is improved.
3. The thick blank formed in the process of the invention is finally transferred to the upper hot pressing die 41 and the lower hot pressing die 42 for receiving and carrying out hot pressing shaping work on the thick blank, if the hot pressing time is required to be longer, the upper hot pressing die 41 and the lower hot pressing die 42 can also be arranged to have more than two groups on the same side so as to carry out hot pressing shaping work on the same thick blank for more than two sections, 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 (3)
1. A molding product double lower pulp sucking automatic molding machine is characterized by comprising:
a slurry box for containing slurry, the top surface of which is open;
a lower suction pulp mould which is supported by installation and exists at the top surface opening of the pulp box, the mould surface of the lower suction pulp mould faces upwards, the mould surface of the lower suction pulp mould is higher than the pulp surface of the pulp box when the lower suction pulp mould does not act, the lower suction pulp mould is driven by an external power mechanism to do vertical up-down displacement action when required, and the lower suction pulp mould is connected with a first pumping device and can receive the pumping action or blowing action of the first pumping device;
the cold pressing upper die is hung on a guide rail and is positioned above the lower pulp suction die, the die surface of the cold pressing upper die faces downwards, the die surface of the cold pressing upper die is symmetrical to the die surface of the lower pulp suction die, the cold pressing upper die is driven by an external power mechanism to do horizontal and transverse displacement motion along the guide rail when required, and the cold pressing upper die is connected with a second pumping device and can accept the pumping action or blowing action of the second pumping device;
the cold pressing lower die is driven by an external power mechanism to do vertical up-down displacement action when needed, and is connected with a third pumping device to receive the pumping action or blowing action of the third pumping device;
the hot pressing upper die and the cold pressing upper die are connected at intervals and are hung on the guide rail together, the hot pressing upper die and the cold pressing upper die are driven by the same external power mechanism to perform horizontal and transverse displacement motion along the guide rail together, the die surface of the hot pressing upper die faces downwards, the die surface of the hot pressing upper die is identical to the die surface of the cold pressing upper die in shape, 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;
the hot pressing lower die is driven by an external power mechanism to do vertical up-down displacement action when needed, and is connected with a fifth pumping device to receive the pumping action or blowing action of the fifth pumping device; a kind of electronic device with high-pressure air-conditioning system
The material receiving disc is arranged on the same side as the hot pressing lower die and exists outside the hot pressing lower die, the material receiving disc is driven by an external power mechanism to do vertical up-and-down displacement motion when needed, and the material receiving disc is mainly provided with a platform for receiving a finished product of a molded product to stay.
2. A method for manufacturing a molded product by a double-suction automatic molding machine of the molded product is characterized in that the double-suction automatic molding machine of the molded product comprises the following steps:
a slurry box for containing slurry, the top surface of which is open;
a lower suction pulp mould which is supported by installation and exists at the top surface opening of the pulp box, the mould surface of the lower suction pulp mould faces upwards, the mould surface of the lower suction pulp mould is higher than the pulp surface of the pulp box when the lower suction pulp mould does not act, the lower suction pulp mould is driven by an external power mechanism to do vertical up-down displacement action when required, and the lower suction pulp mould is connected with a first pumping device and can receive the pumping action or blowing action of the first pumping device;
the cold pressing upper die is hung on a guide rail and is positioned above the lower pulp suction die, the die surface of the cold pressing upper die faces downwards, the die surface of the cold pressing upper die is symmetrical to the die surface of the lower pulp suction die, the cold pressing upper die is driven by an external power mechanism to do horizontal and transverse displacement motion along the guide rail when required, and the cold pressing upper die is connected with a second pumping device and can accept the pumping action or blowing action of the second pumping device;
the cold pressing lower die is driven by an external power mechanism to do vertical up-down displacement action when needed, and is connected with a third pumping device to receive the pumping action or blowing action of the third pumping device;
the hot pressing upper die and the cold pressing upper die are connected at intervals and are hung on the guide rail together, the hot pressing upper die and the cold pressing upper die are driven by the same external power mechanism to perform horizontal and transverse displacement motion along the guide rail together, the die surface of the hot pressing upper die faces downwards, the die surface of the hot pressing upper die is identical to the die surface of the cold pressing upper die in shape, 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;
the hot pressing lower die is driven by an external power mechanism to do vertical up-down displacement action when needed, and is connected with a fifth pumping device to receive the pumping action or blowing action of the fifth pumping device; a kind of electronic device with high-pressure air-conditioning system
The material receiving disc is arranged on the same side as the hot pressing lower die and exists outside the hot pressing lower die, the material receiving disc is driven by an external power mechanism to do vertical up-and-down displacement motion when needed, and the material receiving disc is mainly provided with a platform for receiving a finished product of a molded product to stay;
the following steps are carried out:
(1) Starting an external power mechanism connected with the lower pulp suction die, driving the lower pulp suction die to descend and dip into the pulp in the pulp box, and starting pulp suction through a connected first pumping device so as to form a first embryo layer on the die surface of the lower pulp suction die;
(2) When the suction time is up, the lower suction mould adsorbs the first embryo layer to move upwards and away from the pulp surface to return to the original position, and in the process, the first pumping device continuously sucks the first embryo layer to dehydrate and dehumidify;
(3) Starting an external power mechanism connected with the lower pulp suction die, driving the lower pulp suction die to absorb the first blank layer to rise, entering the cold pressing upper die to be matched with the die to extrude the first blank layer for dehydration, starting a suction effect by a second suction device connected with the cold pressing upper die to absorb the first blank layer, stopping the suction effect by the first suction device connected with the lower pulp suction die, and converting the suction effect into a blowing effect to enable the first blank layer to be separated from the lower pulp suction die;
(4) Starting an external power mechanism connected with the cold pressing upper die, driving the cold pressing upper die to absorb the first blank layer and transversely move to the position right above the cold pressing lower die along the guide rail, and simultaneously enabling the hot pressing upper die to synchronously move along the guide rail along with the cold pressing upper die; simultaneously, the lower pulp sucking die descends and is immersed into the pulp in the pulp box again, and pulp is sucked again through the connected first pumping device, so that a second embryo layer is formed on the die surface of the lower pulp sucking die;
(5) The cold pressing lower die starts the suction effect through a third pumping device connected with the cold pressing lower die, an external power mechanism connected with the cold pressing lower die is started at the same time, the cold pressing lower die is driven to rise into the cold pressing upper die to be clamped and extruded to dehydrate the first embryo layer, then the third pumping device connected with the cold pressing lower die stops the suction effect and is converted into the blowing effect, the first embryo layer is separated from the cold pressing lower die, and the second pumping device connected with the cold pressing upper die still starts the suction effect to absorb the first embryo layer; at the same time of the process, the lower suction pulp mould also adsorbs the second embryo layer to move upwards away from the pulp surface to return to the original position, and the first pumping device continuously sucks the second embryo layer to dehydrate and dehumidify;
(6) An external power mechanism connected with the cold pressing lower die drives the cold pressing lower die to descend and return, the cold pressing upper die adsorbs the first blank layer to reversely move and return to the position right above the lower pulp suction die along the guide rail, and meanwhile, the hot pressing upper die reversely moves along the guide rail along with the cold pressing upper die;
(7) The external power mechanism connected with the lower pulp suction die drives the lower pulp suction die to absorb the second embryo layer to rise, and the second embryo layer is fed into the cold pressing upper die to be clamped, at the moment, the first embryo layer and the second embryo layer are combined between the cold pressing upper die and the lower pulp suction die in a coextrusion mode to form a thick embryo, the thickness of the thick embryo is twice that of the first embryo layer or the second embryo layer, in the process, the second pumping device connected with the cold pressing upper die still continuously pumps to absorb the thick embryo, and meanwhile, the first pumping device connected with the lower pulp suction die stops pumping and converts the pumping action into a blowing action, so that the thick embryo is separated from the lower pulp suction die;
(8) An external power mechanism connected with the cold pressing upper die drives the cold pressing upper die to absorb the thick blank to transversely move to the position right above the hot pressing lower die along the guide rail, and the hot pressing upper die synchronously moves along the guide rail along with the cold pressing upper die in the process;
(9) Starting an external power mechanism connected with the hot pressing lower die to drive the hot pressing lower die to rise into the cold pressing upper die to clamp and squeeze the thick blank, starting a fifth pumping device connected with the hot pressing lower die to perform pumping action in the process, stopping pumping action by a second pumping device connected with the cold pressing upper die, converting into blowing action, and separating the thick blank from the cold pressing upper die, wherein the thick blank is converted and adsorbed by the hot pressing lower die;
(10) The hot pressing lower die adsorbs the thick embryo to descend to the original position, and the thick embryo is continuously subjected to the dehumidification effect of suction dehydration in the process;
(11) An external power mechanism connected with the hot pressing upper die is started to drive the hot pressing upper die to transversely move to the position right above the hot pressing lower die along the guide rail, and meanwhile, the cold pressing upper die can synchronously move to the position right above the lower pulp suction die along the guide rail;
(12) Starting an external power mechanism connected with the hot-pressing lower die to drive the hot-pressing lower die to adsorb the thick blank and rise into the hot-pressing upper die to be clamped, wherein the thick blank is arranged between the hot-pressing upper die and the hot-pressing lower die at the moment, so that the hot-pressing upper die and the hot-pressing lower die perform hot-pressing shaping operation on the thick blank for a certain time together, and the thick blank is completely dried to form a molded product;
(13) When the hot-press shaping operation time is up, the fourth pumping device connected with the hot-press upper die starts pumping action to absorb the molded product, and the fifth pumping device connected with the hot-press lower die starts blowing action to separate the molded product from the hot-press lower die, and then the hot-press lower die moves downwards to return; the external power mechanism connected with the hot pressing upper die drives the hot pressing upper die to reversely move to the position right above the material receiving disc along the guide rail, and simultaneously the cold pressing upper die synchronously moves to the position right above the hot pressing lower die along the guide rail;
(14) Starting an external power mechanism connected with the material receiving disc to drive the material receiving disc to rise to a specified position with a falling distance from the hot pressing upper die to stay, wherein the falling distance can enable the molded product to fall smoothly without influencing the follow-up leaving action of the hot pressing upper die, and then stopping the suction action of a fourth pumping device connected with the hot pressing upper die to convert into a blowing action so as to enable the molded product to be separated from the hot pressing upper die, so that a finished product of the molded product is blown down on a platform of the material receiving disc to stay;
(15) An external power mechanism connected with the hot-pressing upper die drives the hot-pressing upper die to transversely move to the position right above the hot-pressing lower die along the guide rail, and simultaneously the cold-pressing upper die synchronously moves to the position right above the lower pulp suction die along the guide rail along the hot-pressing upper die; at the same time, the external power mechanism connected with the receiving tray drives the receiving tray to descend to the original position, so that the finished products of the molded products can be taken off and collected to finish a round of circulation.
3. The method of claim 2, wherein the step of removing the molded product from the tray is performed manually by direct removal or automatically by a robot.
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| CN109577107A (en) * | 2019-01-03 | 2019-04-05 | 天津茂创科技发展有限公司 | Wet base product extrusion dehydration mould assembly, plant fiber plastic suction forming apparatus and dehydrating process with the assembly |
| WO2020142859A1 (en) * | 2019-01-09 | 2020-07-16 | 常州市诚鑫环保科技有限公司 | Automatic upward reciprocating pulp suction forming machine for molded pulp products, and fabrication method |
| CN110512472B (en) * | 2019-07-22 | 2021-08-31 | 徐州利华环保科技有限公司 | Paper pulp shaping machine of environment-friendly disposable urinal and preparation process thereof |
| CN111074693B (en) * | 2019-12-12 | 2021-07-13 | 永发（河南）模塑科技发展有限公司 | Secondary pulp absorption compensation technical method for eliminating surface defects of pulp molding product |
| FI129599B (en) * | 2020-10-19 | 2022-05-31 | Valmet Technologies Oy | Transfer device of a production line for molded fiber product |
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