CN108060617B - Multi-section downdraft automatic molding machine for molded products and manufacturing method - Google Patents
Multi-section downdraft automatic molding machine for molded products and manufacturing method Download PDFInfo
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- CN108060617B CN108060617B CN201711424948.XA CN201711424948A CN108060617B CN 108060617 B CN108060617 B CN 108060617B CN 201711424948 A CN201711424948 A CN 201711424948A CN 108060617 B CN108060617 B CN 108060617B
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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
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Abstract
A multi-stage lower suction pulp automatic shaper for moulding products is composed of a first and a second lower suction pulp moulds, which are respectively fed into different pulp tanks, and the suction pulp is completed to become the first and the second embryo layers, which are sequentially driven by a transfer mould to be pressed and clamped, so combining them to become thick embryo with doubled thickness, and hot pressing to become moulding products.
Description
Technical Field
The invention relates to a multi-section down-draught automatic molding machine for molded products and a manufacturing method for manufacturing the molded products, in particular to a multi-section down-draught automatic molding machine for molded products and a manufacturing method for manufacturing the molded products, which can accelerate the manufacturing speed, increase the thickness and the shock absorption space of the molded products, improve the shock absorption effect, and manufacture the molded products with different hardness and/or different colors and/or different use characteristics and excellent surfaces.
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 then die-clamped with a cold die to squeeze the embryo layer, so that the slurry layer reduces the humidity and is molded into a 'primary embryo', then the suction die adsorbs 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, 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. in the conventional process of producing a molded product, the adsorption operation of the blank layer is performed on only one side (the side to which the mold surface is attached), so that the overall wet-down speed of the blank layer is slow and inconsistent, and the production speed is affected, resulting in slow production speed.
2. 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.
3. When the traditional molded product is manufactured, the pulp 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 molded product with different hardness and/or different color and/or different use characteristics cannot be manufactured.
4. 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 multi-section down-draft automatic molding machine for molded products and a manufacturing method for manufacturing the molded products, wherein the manufacturing speed of the multi-section down-draft automatic molding machine can be increased.
Another main objective of the present invention is to provide a multi-stage down-draft automatic molding machine for molding products and a method for manufacturing the same, which can increase the thickness of the product and the shock absorbing space, thereby enhancing the shock absorbing effect.
Still another object of the present invention is to provide a multi-stage downdraft automatic molding machine capable of producing molded products having different hardness and/or different color and/or different use characteristics, and a method for producing molded products.
Still another object of the present invention is to provide a multi-stage downdraft automatic molding machine for 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 multi-section down-draft automatic molding machine for molded products comprises: a transfer die supported by the mounting and located at an upper position in the space of the first main frame, the die surface of the transfer die facing downwards, the transfer die being driven by an external power mechanism to perform vertical up-down displacement and horizontal lateral displacement when required, the transfer die being connected to a first pumping device for receiving the pumping or blowing action of the first pumping device; at least two headboxes comprising: at least one first slurry box arranged below the first main frame space and internally containing slurry, and the top surface of the first slurry box is in an opening shape; the second main frame space is positioned at the side edge of the first main frame space, and the second slurry box is positioned at the side edge of the first slurry box; at least two inhale thick liquid lower mould includes: at least one first pulp sucking lower die which is supported by installation and exists at the top surface opening of the first pulp box, the die surface of the first pulp sucking lower die faces upwards, the die surface of the first pulp sucking lower die is higher than the pulp surface of the first pulp box when the first pulp sucking lower die does not act, the first pulp sucking lower die can do vertical up-and-down displacement action under the drive of an external power mechanism, and the first 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; the second pulp sucking lower die is supported by installation and exists at the top surface opening of the second pulp box, the die surface of the second pulp sucking lower die faces upwards, when the second pulp sucking lower die does not act, the die surface of the second pulp sucking lower die is higher than the pulp surface of the second pulp box, the second pulp sucking lower die can be driven by an external power mechanism to do vertical up-down displacement, and the second pulp sucking lower die is connected with a third pumping device and can receive the pumping action or blowing action of the third pumping device; the third main frame space is arranged at the side edge of the second main frame space; 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 third main frame space, the die surface of the hot pressing die faces upwards, the hot pressing die is pushed by an external power mechanism to perform horizontal transverse displacement action, and the hot pressing die is connected with a fourth pumping device and can receive the pumping action or blowing action of the fourth pumping device; and at least one hot pressing upper die which is supported by installation and exists on the top bottom surface of the side frame space and is positioned right above the hot pressing lower die, the die surface of the hot pressing upper die faces downwards, the hot pressing upper die is pushed by an external power mechanism to perform vertical up-and-down displacement action, and the hot pressing upper die is connected with a fifth pumping device and can receive the pumping action or the blowing action of the fifth pumping device.
In the multi-section lower pulp suction automatic molding machine for molded products, the die surface of the first pulp suction lower die is symmetrical to the die surface of the transfer die, the die surface of the second pulp suction lower die is identical to the die surface of the first pulp suction lower die, the die surface of the hot pressing lower die is identical to the die surface of the second pulp suction lower die, and the die surface of the hot pressing upper die is symmetrical to the die surface of the hot pressing lower die.
The invention also provides a manufacturing method of the molded product manufactured by the multi-section lower pulp automatic molding machine, which comprises the following steps of:
(1) Starting the first pulp sucking lower die to descend and dip into the pulp in the first pulp box, and starting pulp sucking through a connected second pumping device so as to form a first embryo layer on the die surface of the first pulp sucking lower die; simultaneously starting the second pulp sucking lower die to descend and dip into the pulp in the second pulp box, and starting pulp sucking through a connected third pumping device so as to form a second embryo layer on the die surface of the second pulp sucking lower die;
(2) When the pulp sucking time is up, the first pulp sucking lower die adsorbs the first embryo layer to move upwards away from the pulp surface and return to the top surface opening of the first pulp box; simultaneously, the second blank layer is adsorbed by the second pulp sucking lower die and also moves upwards from the pulp surface to return to the top surface opening of the second pulp box, and in the process, the second suction device and the third suction device continuously suck to enable the first blank layer and the second blank layer to be dehumidified;
(3) Starting an external power mechanism connected with the transfer die to drive the transfer die to move downwards into the first pulp sucking lower die to clamp and squeeze the first blank layer for molding, then starting a suction function by a first suction device connected with the transfer die to absorb the first blank layer, stopping the suction function by a second suction device connected with the first pulp sucking lower die, and converting the suction function into a blowing function to enable the first blank layer to be separated from the first pulp sucking lower die;
(4) The transfer mould is made to absorb the first embryo layer and move back to the upper position in the space of the first main frame;
(5) Starting an external power mechanism connected with the transfer die to push the transfer die to adsorb the first embryo layer to horizontally move to the upper position in the space of the second main frame;
(6) Starting an external power mechanism connected with the transfer die to drive the transfer die to absorb the first embryo layer to move downwards into the second pulp sucking lower die to be clamped, and enabling the first embryo layer and the second embryo layer to be co-extruded and combined between the transfer die and the second pulp sucking lower die to form a thick embryo;
(7) Allowing the transfer mold to absorb the thick blank and move back to the upper position in the space of the second main frame;
(8) Starting an external power mechanism connected with the transfer die, pushing the transfer die to absorb the thick blank to horizontally move to an upper position in the space of the third main frame, and simultaneously starting the external power mechanism connected with the hot pressing lower die, pushing the hot pressing lower die to horizontally and horizontally move to a lower position in the space of the third main frame, so that the transfer die absorbs the thick blank and is positioned right above the hot pressing lower die;
(9) Allowing the transfer mold to absorb the thick blank and move downwards into the hot pressing lower mold for mold closing and extrusion molding, then starting a suction effect of a fourth pumping device connected with the hot pressing lower mold to absorb the thick blank, stopping the suction effect of a first pumping device connected with the transfer mold, and converting the suction effect into a blowing effect to disconnect the thick blank from the transfer mold;
(10) Moving the transfer mold back to the upper position in the third main frame space, and continuously adsorbing the thick blank by the hot pressing lower mold;
(11) Allowing the hot pressing lower die to absorb the thick blank and horizontally move back to the position right below the hot pressing upper die, and allowing the transfer die to transversely retract to the upper position in the first main frame space;
(12) Starting an external power mechanism connected with the hot-pressing upper die, pushing the hot-pressing upper die to descend into the hot-pressing lower die for die assembly, and carrying out hot-pressing shaping operation on the thick blank by the hot-pressing upper die and the hot-pressing lower die together so as to completely dry the thick blank into a molded product;
(13) When the hot pressing shaping operation time is up, the fifth pumping device connected with the hot pressing upper die starts pumping action to absorb the molded product, and the fourth pumping device connected with the hot pressing lower die starts blowing action to separate the hot pressing lower die from the molded product, the hot pressing upper die absorbs the molded product to move upwards to return, and then the molded product is taken out from the hot pressing upper die.
In the method for manufacturing the molded product by using the multi-stage downdraft automatic molding machine for the molded product, the thickness of the thick blank is at least twice that of the first blank layer or the second blank layer.
In the method for manufacturing the molded product by the multi-section downdraft automatic molding machine of the molded product, the action of taking the molded product off the hot-pressing upper die is to take the molded product on the bottom surface of the hot-pressing upper die by a mechanical arm, and meanwhile, the fifth pumping device connected with the hot-pressing upper die stops pumping action and is converted into blowing action, so that the molded product is separated from the hot-pressing upper die, and then the molded product can be taken off from the hot-pressing upper die.
In the method for manufacturing the molded product by the multi-section lower suction automatic molding machine of the molded product, the first blank layer adsorbed by the first suction lower die and the second blank layer adsorbed by the second suction lower die have the same part of modeling and position and the part of modeling and position difference.
In the method for manufacturing the molded product by the multi-section lower suction automatic molding machine of the molded product, when the first blank layer adsorbed by the first suction lower die and the second blank layer adsorbed by the second suction lower die are combined to form a thick blank, the parts with the same modeling and positions are bonded, the parts with different modeling and positions are not bonded, and a space exists.
Compared with the prior art, the invention has obvious progress:
1. the invention discloses that the first pulp suction lower die and the second pulp suction lower die respectively suck pulp in the first pulp tank and the second pulp tank at the same time, so that the manufacturing speed can be increased; the construction design is not available in any conventional molding product manufacturing machine, and more importantly, the slurries placed in the first slurry tank and the second slurry tank can be slurries with different concentrations and/or different colors and/or different material characteristics so as to manufacture and mold molded products with different internal and external hardness and/or different internal and external colors and/or different internal and external using characteristics (such as different internal and external toughness), or can be molded by die assembly and extrusion of double-layer blank layers, so that the effect of reinforcing thickness and/or colors and/or characteristics of only part is achieved, and more particularly, different products with various styles can be manufactured by using the automatic molding machine and the manufacturing method of the invention.
2. In the invention, the first pulp sucking lower die and the second pulp sucking lower die suck pulp simultaneously to finish a first blank layer and a second blank layer, and then the transfer die drives extrusion molding and then die assembly respectively, so that the first blank layer and the second blank layer are combined into a thick blank with doubled thickness, thereby increasing the thickness and being beneficial to enhancing the shock absorbing effect of a molded product; 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 thick blank formed in the process is formed by simultaneously sucking the slurry by the first slurry sucking lower die and the second slurry sucking lower die into a first blank layer and a second blank layer, respectively driving extrusion molding by the transfer die and then closing the dies, so that the first blank layer and the second blank layer are combined into the thick blank with doubled thickness.
Drawings
FIG. 1 is a schematic diagram of the construction of a multi-stage downdraft automatic forming machine for molded products according to the present invention.
Fig. 2 to 14 are schematic views showing successive steps of a manufacturing method for manufacturing a molded product according to the present invention.
FIG. 15-1 is a schematic view showing the suction of slurry from a first suction lower die to form a first blank layer according to the present invention.
FIG. 15-2 is a schematic view showing the suction of slurry from the second suction lower die to form the second embryo layer according to the present invention.
FIG. 16 is a schematic diagram showing the operation of the transfer mold and the second suction lower mold to press and combine the first and second blank layers into a thick blank according to the present invention.
In the figure:
1. automatic forming machine 11, first main frame space
12. A second main frame space 13, a third main frame space
14. Side frame space 21, first headbox
22. Second headbox 31, first suction lower die
32. Second pulp suction lower die 40 and transfer die
51. Hot pressing lower die 52 and hot pressing upper die
S, 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 multi-section lower suction automatic molding machine for molded products and a manufacturing method for manufacturing the molded products by the multi-section lower suction automatic molding machine for the molded products.
The overall structure of the multi-stage downdraft automatic molding machine for molded products of the invention is shown in fig. 1, and is an automatic molding machine 1 particularly suitable for manufacturing molded products, which mainly comprises the following components in terms of structure:
a transfer mold 40 supported by the mounting support and disposed at an upper position in a first mainframe space 11, the mold surface of the transfer mold 40 facing downward, and the mold surface of the transfer mold 40 being convex, the transfer mold 40 being driven by an external power mechanism (such as a power cylinder and/or a motor, a rail and a roller, without limitation) to perform an up-and-down displacement operation when needed, and being driven by the external power mechanism to perform a horizontal displacement operation when needed, the transfer mold 40 being connected to a first pumping device to receive a pumping (vacuum) operation or a blowing (air blowing) operation of the first pumping device.
A first slurry box 21 is disposed below the first main frame space 11, and has an open top surface for containing slurry therein.
A second slurry tank 22 is disposed below a second main frame space 12, the second main frame space 12 is located at the side of the first main frame space 11, so that the second slurry tank 22 is located at the side of the first slurry tank 21, the slurry is contained in the second slurry tank 22, and the top surface is opened.
A first pulp sucking lower die 31 is supported by the mounting support and is located at the top opening of the first pulp tank 21, the die surface of the first pulp sucking lower die 31 faces upwards, when not in operation, the die surface of the first pulp sucking lower die 31 is higher than the pulp surface of the first pulp tank 21, the die surface of the first pulp sucking lower die 31 is symmetrical to the die surface of the transferring die 40, so that the die surface of the first pulp sucking lower die 31 is concave, the first pulp sucking lower die 31 is driven by an external power mechanism (such as a power cylinder and not limited by the power cylinder) and can perform vertical displacement when needed, and the first pulp sucking lower die 31 is connected with a second pumping device, so as to receive the pumping (vacuum) action or blowing (air supply) action of the second pumping device.
A second pulp sucking lower die 32 is supported by the mounting support and is located at the top opening of the second pulp box 22, the die surface of the second pulp sucking lower die 32 faces upwards, when not in operation, the die surface of the second pulp sucking lower die 32 is higher than the pulp surface of the second pulp box 22, and the die surface of the second pulp sucking lower die 32 is concave as the die surface of the first pulp sucking lower die 31, the second pulp sucking lower die 32 is driven by an external power mechanism (such as a power cylinder and not limited) to perform vertical displacement action when needed, and the second pulp sucking lower die 32 is connected with a third pumping device to receive the pumping (vacuum) action or blowing (air supply) action of the third pumping device.
A third main frame space 13 is disposed at a side of the second main frame space 12, and is a space for converting objects.
A hot-pressing die 51 is supported by the mounting support and is located in the side frame space 14, the side frame space 14 is located at the side of the third main frame space 13, the die surface of the hot-pressing die 51 faces upwards, and the die surface of the hot-pressing die 51 and the die surface of the second pulp-sucking die 32 are concave, the hot-pressing die 51 can be pushed by an external power mechanism (such as a motor, a sliding rail and a roller, not limited to the arrangement), and the hot-pressing die 51 is connected with a fourth pumping device, and can receive the pumping (vacuum) action or the blowing (air blowing) action of the fourth pumping device.
And a hot pressing upper die 52 supported by the mounting support and located on the top bottom surface of the side frame space 14 and located directly above the hot pressing lower die 51, wherein the die surface of the hot pressing upper die 52 faces downward, and the die surface of the hot pressing upper die 52 is symmetrical to the die surface of the hot pressing lower die 51 to be convex, the hot pressing upper die 52 can be pushed by an external power mechanism (such as a power cylinder, not limited thereto) to perform vertical displacement, and the hot pressing upper die 52 is connected with a fifth pumping device to receive the pumping (vacuum) action or the blowing (air blowing) action of the fifth pumping device.
The above-mentioned structure can be formed into the invented multi-stage pulp-down automatic forming machine for moulding product, in which the external power mechanism and first, second, third, fourth and fifth pumping devices are not main structure of the invention, and their action can be obviously implemented, so that they are not shown in the figure, so that it is not too complex and difficult to distinguish.
According to the structural composition of the multi-section automatic molding machine for the molded product, the invention also provides a manufacturing method for manufacturing the molded product by using the multi-section automatic molding machine for the molded product, and the steps are performed as follows:
(1) As shown in fig. 2, the first suction lower die 31 is started to descend and dip into the slurry in the first slurry tank 21, and suction is started by the connected second pumping device, so as to form a first embryo layer on the die surface of the first suction lower die 31; simultaneously, the second suction lower die 32 is started to descend and dip into the slurry in the second slurry tank 22, and suction is started through the connected third pumping device, so that a second blank layer is formed on the die surface of the second suction lower die 32.
(2) As shown in fig. 3, the first suction lower die 31 sucks the first blank layer up and moves away from the slurry surface to the original position (at the top opening of the first slurry tank 21) as soon as the suction time is reached; at the same time, the second suction lower die 32 sucks the second blank layer and moves up from the pulp surface to the original position (the top opening of the second pulp box 22), that is, the suction time is up, the first suction lower die 31 and the second suction lower die 32 move back to the position before not descending, and in the process, the second suction device and the third suction device continuously suck to dehumidify the first blank layer and the second blank layer.
(3) As shown in fig. 4, the external power mechanism connected to the transfer mold 40 is started to drive the transfer mold 40 to move down into the first suction lower mold 31 to mold and press the first blank layer to form, then the first pumping device connected to the transfer mold 40 starts pumping action to absorb the first blank layer, and the second pumping device connected to the first suction lower mold 31 stops pumping action and converts the pumping action into blowing (air supply) action to disconnect the first blank layer from the first suction lower mold 31.
(4) As shown in fig. 5, the transfer mold 40 is made to absorb the first blank layer back to the original position (the upper position in the first main frame space 11).
(5) As shown in fig. 6, the external power mechanism connected to the transfer mold 40 is activated to push the transfer mold 40 to absorb the first blank layer to move horizontally to the upper position in the second main frame space 12.
(6) As shown in fig. 7, the external power mechanism connected to the transfer mold 40 is started to drive the transfer mold 40 to absorb the first blank layer and move downwards into the second pulp absorbing lower mold 32 to be clamped, at this time, the first blank layer and the second blank layer are combined together and pressed between the transfer mold 40 and the second pulp absorbing lower mold 32 to form a thick blank, the thickness of the thick blank is twice that of the first blank layer or the second blank layer, during the process, the first pumping device connected to the transfer mold 40 continuously pumps to absorb the thick blank, and at the same time, the third pumping device connected to the second pulp absorbing lower mold 32 stops pumping, and converts the pumping action into blowing (blowing) action to disconnect the thick blank from the second pulp absorbing lower mold 32, at this time, the blowing (blowing) action of the third pumping device also reduces the humidity of the thick blank.
(7) As shown in fig. 8, the transfer mold 40 is caused to suck the thick blanks back up to the upper position in the second main frame space 12.
(8) As shown in fig. 9, the external power mechanism connected to the transfer mold 40 is started to push the transfer mold 40 to absorb the thick blank and move horizontally to the upper position in the third main frame space 13, and the external power mechanism connected to the hot press lower mold 51 is started to push the hot press lower mold 51 to move horizontally to the lower position in the third main frame space 13, i.e. at this time, the transfer mold 40 absorbs the thick blank and is located right above the hot press lower mold 51.
(9) As shown in fig. 10, the transfer mold 40 is moved down to the lower hot press mold 51 to mold and press the blank, then the fourth drawing device connected to the lower hot press mold 51 starts the suction to suck the blank, and the first drawing device connected to the transfer mold 40 stops the suction to convert into blowing (air supply) to release the blank from the transfer mold 40.
(10) As shown in fig. 11, the transfer mold 40 is moved back to the upper position in the third mainframe space 13, and the hot press lower mold 51 continues to suck the thick blanks.
(11) As shown in fig. 12, the hot pressing lower die 51 is moved horizontally and backward to the right under the hot pressing upper die 52, and the transferring die 40 is moved back to the upper position in the first main frame space 11, at this time, the first pulp sucking lower die 31, the second pulp sucking lower die 32 and the transferring die 40 can be unfolded at the right time for the next stroke of pulp sucking and transferring operation.
(12) As shown in fig. 13, the external power mechanism connected to the upper hot-pressing mold 52 is started to push the upper hot-pressing mold 52 down, and finally the upper hot-pressing mold 52 enters the lower hot-pressing mold 51 to be clamped, at this time, the thick blank is placed between the upper hot-pressing mold 52 and the lower hot-pressing mold 51, so that the upper hot-pressing mold 52 and the lower hot-pressing mold 51 perform hot-pressing shaping operation on the thick blank together for a period of time, and the thick blank is completely dried to form a molded product.
(13) As shown in fig. 14, when the hot press forming operation is completed, the fifth pumping device connected to the upper hot press die 52 starts pumping to absorb the molded product, and the fourth pumping device connected to the lower hot press die 51 starts blowing (blowing) to separate the lower hot press die 51 from the molded product, and then the upper hot press die 52 absorbs the molded product and moves upward to return, and finally, the mechanical arm approaches the bottom surface of the upper hot press die 52 to receive the molded product, and the fifth pumping device connected to the upper hot press die 52 stops pumping and converts the pumping into blowing (blowing) to separate the molded product from the upper hot press die 52, and then the molded product is removed from the upper hot press die 52.
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. 15-1 and 15-2, according to the foregoing step 1 (i.e. as shown in fig. 2), the first suction lower die 31 and the second suction lower die 32 respectively perform suction in the first suction box 21 and the second suction box 22 at the same time, so that when the first blank layer and the second blank layer are respectively formed by suction on the die surfaces of the first suction lower die 31 and the second suction lower die 32, the suction surfaces of the first suction lower die 31 and the second suction lower die 32 may have the same shape and position, or may have the different shapes and positions, i.e. the suction surfaces of the first suction lower die 31 and the second suction lower die 32 are similar to each other in shape symmetry, but have the difference in positions of the parts.
Therefore, as shown in fig. 16, when the transfer mold 40 is made to absorb the first blank layer and move down into the second blank layer absorbed by the second suction lower mold 32 to be clamped according to the above-mentioned step 6 (i.e. as shown in fig. 7), the original single-layer first blank layer and the second blank layer are combined together by co-extrusion between the transfer mold 40 and the second suction lower mold 32 to form a thick blank with doubled thickness, at this time, it can be seen that there are a plurality of spaces S inside the thick blank, because the original single-layer first blank layer and the second blank layer have different positions at the initial positions, the positions with the same shapes and positions are bonded, and the positions with different shapes and positions are not bonded, so that after the thick blank is combined by extrusion, the positions with different positions of the original blank layers are generated inside the thick blank, thereby achieving the effects of increasing the thickness and producing the buffer space, and enhancing the practicability.
In summary, the present invention has the following excellent effects in use:
1. the invention discloses that the first pulp sucking lower die 31 and the second pulp sucking lower die 32 suck pulp in the first pulp box 21 and the second pulp box 22 respectively, so that the manufacturing speed can be increased; the construction design is not available in any conventional molding machine, and more importantly, the slurries placed in the first and second tanks 21 and 22 may be slurries with different concentrations and/or different colors and/or different material properties, so as to manufacture molded products with different internal and external hardness and/or different internal and external colors and/or different internal and external use properties (such as different internal and external toughness), or may be molded by die-closing and extrusion of double-layer blank layers, so that only part of reinforcing thickness and/or colors and/or properties are achieved, in particular, different products with various styles can be manufactured by using the automatic molding machine and the manufacturing method of the invention.
2. In the process, the first slurry sucking lower die 31 and the second slurry sucking lower die 32 suck slurry simultaneously to form a first blank layer and a second blank layer, and then the transfer die 40 drives extrusion molding and then die assembly respectively, so that the first blank layer and the second blank layer are combined into a thick blank with doubled thickness, and the thickness can be increased, thereby being beneficial to enhancing the shock absorbing effect of the molded product; 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 present invention is illustrated by using two-stage suction lower dies (i.e. the first suction lower die 31 and the second suction lower die 32) together with two-stage suction boxes (i.e. the first suction lower die 21 and the second suction lower die 22), but in practice, the suction lower dies and the suction boxes are not limited by two stages, and may also be two or more (at least two) suction lower dies, and then the transfer die 40 and two or more (at least two) suction lower dies are respectively extruded and clamped to form thick blanks with increased thickness (at least two times) in sequence, so that the "multi-stage suction lower die" in the multi-stage suction automatic forming machine for molded products "of the present invention refers to at least two stages of suction actions, i.e. at least includes the first suction lower die 31 and the second suction lower die 32.
4. The thick blank formed in the process of the invention is formed by simultaneously sucking the slurry by the first slurry sucking lower die 31 and the second slurry sucking lower die 32 to form a first blank layer and a second blank layer, respectively driving extrusion molding by the transfer die 40 and then closing the dies, so that the first blank layer and the second blank layer are combined to form the thick blank with doubled thickness, and the outer surface of the thick blank is the best surface formed by tightly attaching the first slurry sucking lower die 31 and the second slurry sucking lower die 32 when sucking the slurry, so that the outer surface of the molded product after hot press molding is the best surface, and the overall value sense of packaged commodity is sufficiently improved in use.
5. The thick blank formed in the process of the invention is transferred and received by the hot-pressing lower die 51, and then the hot-pressing lower die 52 is clamped to carry out hot-pressing shaping work on the thick blank, if the hot-pressing time is longer, the two groups of the hot-pressing lower die 51 and the hot-pressing upper die 52 can be arranged 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 (7)
1. A molding product multistage suction pulp automatic molding machine is characterized by comprising:
a transfer die supported by the mounting and located at an upper position in the space of the first main frame, the die surface of the transfer die facing downwards, the transfer die being driven by an external power mechanism to perform vertical up-down displacement and horizontal lateral displacement when required, the transfer die being connected to a first pumping device for receiving the pumping or blowing action of the first pumping device;
At least two headboxes comprising: at least one first slurry box arranged below the first main frame space and internally containing slurry, and the top surface of the first slurry box is in an opening shape; the second main frame space is positioned at the side edge of the first main frame space, and the second slurry box is positioned at the side edge of the first slurry box;
at least two inhale thick liquid lower mould includes: at least one first pulp sucking lower die which is supported by installation and exists at the top surface opening of the first pulp box, the die surface of the first pulp sucking lower die faces upwards, the die surface of the first pulp sucking lower die is higher than the pulp surface of the first pulp box when the first pulp sucking lower die does not act, the first pulp sucking lower die can do vertical up-and-down displacement action under the drive of an external power mechanism, and the first 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; the second pulp sucking lower die is supported by installation and exists at the top surface opening of the second pulp box, the die surface of the second pulp sucking lower die faces upwards, when the second pulp sucking lower die does not act, the die surface of the second pulp sucking lower die is higher than the pulp surface of the second pulp box, the second pulp sucking lower die can be driven by an external power mechanism to do vertical up-down displacement, and the second pulp sucking lower die is connected with a third pumping device and can receive the pumping action or blowing action of the third pumping device;
The third main frame space is arranged at the side edge of the second main frame space;
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 third main frame space, the die surface of the hot pressing die faces upwards, the hot pressing die is pushed by an external power mechanism to perform horizontal transverse displacement action, and the hot pressing die is connected with a fourth pumping device and can receive the pumping action or blowing action of the fourth pumping device; and at least one hot pressing upper die which is supported by installation and exists on the top bottom surface of the side frame space and is positioned right above the hot pressing lower die, the die surface of the hot pressing upper die faces downwards, the hot pressing upper die is pushed by an external power mechanism to perform vertical up-and-down displacement action, and the hot pressing upper die is connected with a fifth pumping device and can receive the pumping action or the blowing action of the fifth pumping device.
2. The automatic molding machine for multi-stage downdraft molding of molded products according to claim 1, wherein the die surface of the first downdraft mold is symmetrical to the die surface of the transfer mold, the die surface of the second downdraft mold is identical to the die surface of the first downdraft mold, the die surface of the hot press lower mold is identical to the die surface of the second downdraft mold, and the die surface of the hot press upper mold is symmetrical to the die surface of the hot press lower mold.
3. A method for manufacturing a molded product by a multi-section lower suction automatic molding machine of the molded product is characterized by comprising the following steps:
a transfer die supported by the mounting and located at an upper position in the space of the first main frame, the die surface of the transfer die facing downwards, the transfer die being driven by an external power mechanism to perform vertical up-down displacement and horizontal lateral displacement when required, the transfer die being connected to a first pumping device for receiving the pumping or blowing action of the first pumping device;
at least two headboxes comprising: at least one first slurry box arranged below the first main frame space and internally containing slurry, and the top surface of the first slurry box is in an opening shape; the second main frame space is positioned at the side edge of the first main frame space, and the second slurry box is positioned at the side edge of the first slurry box;
at least two inhale thick liquid lower mould includes: at least one first pulp sucking lower die which is supported by installation and exists at the top surface opening of the first pulp box, the die surface of the first pulp sucking lower die faces upwards, the die surface of the first pulp sucking lower die is higher than the pulp surface of the first pulp box when the first pulp sucking lower die does not act, the first pulp sucking lower die can do vertical up-and-down displacement action under the drive of an external power mechanism, and the first 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; the second pulp sucking lower die is supported by installation and exists at the top surface opening of the second pulp box, the die surface of the second pulp sucking lower die faces upwards, when the second pulp sucking lower die does not act, the die surface of the second pulp sucking lower die is higher than the pulp surface of the second pulp box, the second pulp sucking lower die can be driven by an external power mechanism to do vertical up-down displacement, and the second pulp sucking lower die is connected with a third pumping device and can receive the pumping action or blowing action of the third pumping device;
The third main frame space is arranged at the side edge of the second main frame space;
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 third main frame space, the die surface of the hot pressing die faces upwards, the hot pressing die is pushed by an external power mechanism to perform horizontal transverse displacement action, and the hot pressing die is connected with a fourth pumping device and can receive the pumping action or blowing action of the fourth pumping device; and at least one hot pressing upper die which is supported by installation and exists on the top bottom surface of the side frame space and is positioned right above the hot pressing lower die, the die surface of the hot pressing upper die faces downwards, the hot pressing upper die is pushed by an external power mechanism to perform vertical up-and-down displacement action, and the hot pressing upper die is connected with a fifth pumping device and can receive the pumping action or blowing action of the fifth pumping device;
the following steps are carried out:
(1) Starting the first pulp sucking lower die to descend and dip into the pulp in the first pulp box, and starting pulp sucking through a connected second pumping device so as to form a first embryo layer on the die surface of the first pulp sucking lower die; simultaneously starting the second pulp sucking lower die to descend and dip into the pulp in the second pulp box, and starting pulp sucking through a connected third pumping device so as to form a second embryo layer on the die surface of the second pulp sucking lower die;
(2) When the pulp sucking time is up, the first pulp sucking lower die adsorbs the first embryo layer to move upwards away from the pulp surface and return to the top surface opening of the first pulp box; simultaneously, the second slurry sucking lower die adsorbs the second embryo layer to move upwards away from the slurry surface and return to the top surface opening of the second slurry box, and in the process, the second pumping device and the third pumping device continuously suck to enable the first embryo layer and the second embryo layer to be dehumidified;
(3) Starting an external power mechanism connected with the transfer die to drive the transfer die to move downwards into the first pulp sucking lower die to clamp and squeeze the first blank layer for molding, then starting a suction function by a first suction device connected with the transfer die to absorb the first blank layer, stopping the suction function by a second suction device connected with the first pulp sucking lower die, and converting the suction function into a blowing function to enable the first blank layer to be separated from the first pulp sucking lower die;
(4) The transfer mould is made to absorb the first embryo layer and move back to the upper position in the space of the first main frame;
(5) Starting an external power mechanism connected with the transfer die to push the transfer die to adsorb the first embryo layer to horizontally move to the upper position in the space of the second main frame;
(6) Starting an external power mechanism connected with the transfer die to drive the transfer die to absorb the first embryo layer to move downwards into the second pulp sucking lower die to be clamped, and enabling the first embryo layer and the second embryo layer to be co-extruded and combined between the transfer die and the second pulp sucking lower die to form a thick embryo;
(7) Allowing the transfer mold to absorb the thick blank and move back to the upper position in the space of the second main frame;
(8) Starting an external power mechanism connected with the transfer die, pushing the transfer die to absorb the thick blank to horizontally move to an upper position in the space of the third main frame, and simultaneously starting the external power mechanism connected with the hot pressing lower die, pushing the hot pressing lower die to horizontally and horizontally move to a lower position in the space of the third main frame, so that the transfer die absorbs the thick blank and is positioned right above the hot pressing lower die;
(9) Allowing the transfer mold to absorb the thick blank and move downwards into the hot pressing lower mold for mold closing and extrusion molding, then starting a suction effect of a fourth pumping device connected with the hot pressing lower mold to absorb the thick blank, stopping the suction effect of a first pumping device connected with the transfer mold, and converting the suction effect into a blowing effect to disconnect the thick blank from the transfer mold;
(10) Moving the transfer mold back to the upper position in the third main frame space, and continuously adsorbing the thick blank by the hot pressing lower mold;
(11) Allowing the hot pressing lower die to absorb the thick blank and horizontally move back to the position right below the hot pressing upper die, and allowing the transfer die to transversely retract to the upper position in the first main frame space;
(12) Starting an external power mechanism connected with the hot-pressing upper die, pushing the hot-pressing upper die to descend into the hot-pressing lower die for die assembly, and carrying out hot-pressing shaping operation on the thick blank by the hot-pressing upper die and the hot-pressing lower die together so as to completely dry the thick blank into a molded product;
(13) When the hot pressing shaping operation time is up, the fifth pumping device connected with the hot pressing upper die starts pumping action to absorb the molded product, and the fourth pumping device connected with the hot pressing lower die starts blowing action to separate the hot pressing lower die from the molded product, the hot pressing upper die absorbs the molded product to move upwards to return, and then the molded product is taken out from the hot pressing upper die.
4. A method of manufacturing a molded product by a multi-stage downdraft automatic forming machine according to claim 3, wherein the thick blank has a thickness at least twice as large as the thickness of the first blank layer or the second blank layer.
5. A method of manufacturing a molded product by a multi-stage downdraft automatic molding machine according to claim 3, wherein the step of removing the molded product from the upper hot press mold is performed by a robot arm to receive the molded product near the bottom surface of the upper hot press mold, and a fifth pumping device connected to the upper hot press mold stops pumping and converts the pumping action into a blowing action to release the molded product from the upper hot press mold, and then the molded product is removed from the upper hot press mold.
6. The method of manufacturing a molded product by a multi-stage downdraft automatic molding machine according to claim 3, wherein the first blank layer adsorbed by the first downdraft mold and the second blank layer adsorbed by the second downdraft mold have the same partial shape and position and the same partial shape and position.
7. The method of claim 6, wherein when the first blank layer absorbed by the first suction lower die and the second blank layer absorbed by the second suction lower die are combined to form a thick blank, the same molding and position of the two parts are bonded, and the different molding and position of the two parts are not bonded, and a space exists.
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| DE102018221671A1 (en) * | 2018-12-13 | 2020-06-18 | Henkel Ag & Co. Kgaa | Device and method for producing a water-soluble casing and detergent or cleaning agent portions containing this water-soluble casing with viscoelastic, solid filler substance |
| DE102018221674A1 (en) * | 2018-12-13 | 2020-06-18 | Henkel Ag & Co. Kgaa | Device and method for producing a water-soluble casing and detergent or cleaning agent portions containing this water-soluble casing |
| CN111021153A (en) * | 2019-10-25 | 2020-04-17 | 韶关市宏乾智能装备科技有限公司 | Fiber forming control system |
| CN112553972A (en) * | 2020-11-04 | 2021-03-26 | 郭珍珍 | Paper pulp molding product with pattern and manufacturing method thereof |
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