WO2020142859A1

WO2020142859A1 - Automatic upward reciprocating pulp suction forming machine for molded pulp products, and fabrication method

Info

Publication number: WO2020142859A1
Application number: PCT/CN2019/000006
Authority: WO
Inventors: 赖宗伸
Original assignee: 常州市诚鑫环保科技有限公司
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-07-16

Abstract

An automatic upward reciprocating pulp suction forming machine for molded pulp products, and a fabrication method. The forming machine is composed of a pulp box (20), a lower pulp suction mold (10), a cold press upper mold (30), a hot press upper mold (41), a hot press lower mold (42) and a material receiving tray (50). When fabricating products, the lower pulp suction mold (10) enters the pulp box (20) to form a blank layer by pulp suction; the lower pulp suction mold (10) rises and clamps with the cold press upper mold (30) to form a preliminary blank product; the lower pulp suction mold (10) suctions the preliminary blank product to be released from the cold press upper mold (30) and drop; the cold press upper mold (30) and the hot press upper mold (41) move laterally along a guide rail (11) to transfer the preliminary blank product for suction by the hot press upper mold (41); then the hot press lower mold (42) rises and clamps with the hot press upper mold (41) to mold the preliminary blank product into a finished product by means of hot pressing; after completion, the hot press lower mold (42) drops back into position, and the hot press upper mold (41) suctions and moves the finished product above the material receiving tray (50); then the material receiving tray (50) rises, and the finished product is released from the hot press upper mold (41) and drops onto the material receiving tray (50); and finally, the material receiving tray (50) drops back into position.

Description

Automatic reciprocating slurry suction forming machine for paper-plastic products and manufacturing method

【Technical field】

The invention relates to an automatic paper pulp forming machine and manufacturing method for paper and plastic products, in particular to a reciprocating automatic pulp forming machine and manufacturing method for paper and plastic products that can increase the manufacturing speed, shorten the production cycle and reduce the manufacturing cost.

【Background technique】

At present, there has been developed a product made by mixing and beating pulp fiber materials and/or plant fiber materials as a pulp material, which is made by a slurry suction mold to attach the slurry, and then undergoes hot-press setting technology, in order to distinguish it from "plastic products" It is generally referred to as "paper-plastic products", or "molded products" or "pulp molded products", and is now referred to as "paper-plastic products" in this specification. Paper and plastic products have the advantage of being easy to recycle, remanufacture and reuse, and are in line with the trend of environmental protection and reuse and energy saving and carbon reduction. Therefore, they are quickly accepted and willing to be adopted by the industry and commerce and the public. Covers, packaging materials, shock-absorbing materials, cushioning materials and other products are gradually adopted. It can be said that the volume of paper and plastic products is large and small, and there are various types.

It is generally known that the manufacturing process of paper-plastic products generally has to go through multiple operations of "suction forming", "hot pressing setting", "finished product transfer" and "end finishing". Among them, "suction forming" and "hot pressing" The two processes of "setting" are the main manufacturing and forming processes of paper and plastic products, and generally must be completed through an "suction automatic molding machine". As for the "finished product transfer" and "end finishing", the two processes are to complete the manufacture of paper and plastic products. After molding, the finished product is collected and transferred to the finishing process (eg, trimming, inspection, packaging). Among them, the "sucking automatic molding machine" is the most important pusher for the manufacture of paper and plastic products. You must have a good "sucking automatic molding machine" and a suitable manufacturing method (process step) to produce a good Paper-plastic products.

The conventional automatic slurry suction molding machine has many kinds of structures, and there are many manufacturing methods. To put it simply, the production of paper-plastic products with relatively large molding volume, the automatic suction molding machine and the manufacturing method used must be different from those used for the production of paper-plastic products with relatively small molding volume, because the volume is relatively large The two types of paper and plastic products, big and relatively small, will differ in the method and time of suction, extrusion and time, and the method and time of hot press molding. More simply, it is the production of these two types of paper and plastic products. The cycle must be different, so the automatic suction molding machine and the manufacturing method cannot be applied in one piece, and the appropriate adjustment must be made according to the different paper-plastic products to be molded.

The applicant specializes in the design and manufacture of various types of suction automatic molding machines, as well as the design and manufacture of various paper-plastic products. Through long-term contact with various types of suction automatic molding machines and various paper-plastic products, I found that the current practice Known various types of suction automatic molding machines are used to manufacture "light", "small" and "thin" paper and plastic products, and there is a lack of wasteful production cycles. The reason is that the various known automatic suction molding machines and manufacturing methods are designed for forming paper and plastic products with a medium thickness or more, and some are designed to double the thickness of paper and plastic products, so when using the conventional When the automatic suction molding machine is used to manufacture light and thin paper and plastic products, there will be too much in the suction method and time, extrusion method and time, hot press molding method and time, and the cumulative production cycle will be corresponding Unable to shorten, resulting in the lack of manufacturing costs can not be reduced, in the industrial age of time is money, efforts to reduce costs have been king, so the inventor proposed improvements to shorten the production cycle.

[Invention content]

The purpose of the present invention is: 1. To provide a reciprocating suction automatic forming machine and manufacturing method for a paper-plastic product with a completely new structure and manufacturing process. 2. To provide a reciprocating suction automatic forming machine and manufacturing method for paper-plastic products that can increase the manufacturing speed, shorten the production cycle, and reduce the manufacturing cost.

In order to achieve the above object, the present invention claims a reciprocating automatic suction molding machine for paper-plastic products, which includes: a pulp box, containing slurry inside, and the top surface is open; a suction suction mold is installed Supported and present at the opening of the top surface of the slurry box, the mold surface of the lower suction mold is facing upward, and the mold surface of the lower suction mold is higher than the slurry surface of the pulp box when the state is zero, the lower suction slurry The mold is driven by an external power mechanism to make up and down displacement when needed. The lower slurry suction mold is connected to a first pumping device, which can accept the suction or blowing effect of the first pumping device; The mold is hung on a guide rail and exists above the lower suction mold. The mold surface of the cold-pressed upper mold faces downward. The mold surface of the cold-pressed upper mold and the mold surface of the lower suction mold are in shape Symmetrical, the cold-pressed upper die is driven by an external power mechanism to perform horizontal and horizontal displacement along the guide rail when needed. The cold-pressed upper die is connected to a second pumping device to accept the pumping of the second pumping device Suction or blowing; a hot press upper mold, which is connected to the cold press upper mold at a fixed distance and is jointly hung on the guide rail. The hot press upper mold and the cold press upper mold are driven by the same external power mechanism A horizontal lateral displacement action is performed along the guide rail, and the mold surface of the hot-press upper mold faces downward. The mold surface of the hot-press upper mold and the cold-press upper mold have the same shape. Four pumping devices are connected to accept the pumping or blowing effect of the fourth pumping device; a hot-pressing lower die is set on another platform on the other side of the slurry box, and the die surface of the hot-pressing lower die faces upward , The die surface of the hot press lower die and the die surface of the hot press upper die are symmetrical in shape. The hot press lower die is driven by an external power mechanism to perform an up and down displacement action when needed. A fifth pumping device is connected to accept the suction or blowing effect of the fifth pumping device; and a receiving tray is provided on the same side as the hot-press lower die and exists outside the hot-press lower die. The material tray is driven by an external power mechanism to perform up and down displacement when needed. The material receiving tray mainly has a platform for receiving the finished products of paper and plastic products.

The present invention also claims a method for manufacturing a reciprocating suction automatic molding machine for paper-plastic products, which uses the above-mentioned automatic reciprocating suction molding machine for paper-plastic products, and then implements the following steps:

(1). Start the external power mechanism connected to the lower suction mold, drive the lower suction mold to descend and immerse into the slurry of the pulp box, and start suction through the connected first pumping device, in order to A blank layer is formed on the mold surface of the lower suction mold;

(2) When the suction time is up, the lower suction mold adsorbs the blank layer and moves up away from the pulp surface to return to the zero position. During the process, the first pumping device continues the suction function to make the blank layer Gradually dehydrate and dehumidify;

(3). Start the external power mechanism connected to the lower suction mold, drive the lower suction mold to attract the blank layer to rise, enter the cold press upper mold, close the mold and squeeze the blank layer to dehydrate, the process The second pumping device connected to the cold-pressed upper die also activates the suction function to dehydrate and dehumidify the blank layer into an initial embryo. When the mold closing time is reached, the cold-pressed upper die is connected The second pumping device stops the pumping action and converts it into a blowing action to disengage the initial embryo from the cold-pressed upper mold. The first pumping device connected to the lower suction mold still performs the pumping action to attract The initial embryo product;

(4). Let the lower suction mold absorb the initial embryonic product, disengage the cold press upper mold and drop a distance, then start the external power mechanism connected to the cold press upper mold to drive the cold press upper mold and The hot pressing upper mold moves laterally along the guide rail until the hot pressing upper mold is aligned with the lower slurry suction mold;

(5). The lower suction mold drives the initial embryo to rise, enter the hot press upper mold and close the mold, and then the hot press upper mold opens the suction effect through the connected third pumping device to adsorb the initial embryo At the same time, the suction effect of the lower suction mold is stopped, and it is converted into a blowing function, so that the initial embryo product is separated from the lower suction mold;

(6). The lower suction mold releases the hot-press upper mold and descends back to the zero position. During the process, the hot-press upper mold attracts the initial embryo along the guide rail and moves back to the position. The hot press lower mold is directly above, and the cold press upper mold is also returned along the guide rail to be directly above the lower slurry suction mold;

(7). Start the external power mechanism connected to the hot-press lower die, drive the hot-press lower die to rise and close the inner die of the hot-press upper die, then the hot-press upper die and the hot-press lower die jointly The preliminary embryos are hot-pressed and shaped to dry the preliminary embryos into a paper-plastic product. In the process, the third and fourth pumping devices all start the suction function to cause a thermal cycle, so that the preliminary embryos are dried into paper as soon as possible. Plastic products

(8). When the time for hot press setting is up, the hot press upper mold still absorbs the paper-plastic product, and the fourth pumping device connected to the hot press lower mold stops the suction function and converts it into a blowing function to make the The paper-plastic product is disengaged from the hot-pressing lower mold, and then the hot-pressing lower mold is moved down to return to position; then the external power mechanism connected to the cold-pressing upper mold and the hot-pressing upper mold is started to drive the heat The pressing upper mold moves along the guide rail to directly above the receiving tray, and at the same time, the cold pressing upper mold also moves synchronously to directly above the hot pressing lower mold;

(9). Start the external power mechanism connected to the receiving tray, and drive the receiving tray to a specified position with a drop distance from the hot press upper die to stay, the drop distance is just for the paper-plastic product It drops smoothly and does not affect the subsequent movement of the hot-press upper die, and then the third pumping device connected to the hot-press upper die stops the suction function and converts into a blowing function, so that the paper-plastic product and the hot press The mold is disengaged, so the finished product of the paper-plastic product is blown down on the platform of the receiving tray;

(10). The external power mechanism connected by the hot press upper mold and the cold press upper mold is started, driving the hot press upper mold to move along the guide rail to the hot press lower mold directly above, while the cold press upper The mold also moves synchronously to the top of the lower suction mold; at the same time, the external power mechanism connected to the receiving tray drives the receiving tray down to the original position, so the finished product of paper and plastic can be completed Take away and gather to complete a cycle that belongs to the first production cycle.

In the manufacturing method of the above paper-plastic product upper reciprocating slurry suction automatic molding machine, when the hot press upper die and the hot press lower die are closed to perform hot press setting operation, the lower suction die can be immersed again into the pulp box Suction, to adsorb on the mold surface of the lower suction mold to form a blank layer belonging to the second production cycle, when the suction time is up, the lower suction mold will adsorb the embryo belonging to the second production cycle The material layer rises back to the zero position and stays, waiting for the instructions of subsequent operations.

In the manufacturing method of the above paper-plastic product upper reciprocating slurry suction automatic forming machine, when the cold-pressed upper die moves back to align with the lower slurry suction die, the lower slurry suction die can be attracted to belong to the second production cycle The blank layer rises, enters the cold press upper mold, closes the mold, squeezes the blank layer to dehydrate, and then performs the subsequent operations of the second production cycle.

The advantages and beneficial effects of the present invention are: the present invention can greatly shorten the production cycle, and relatively can greatly save the production time to reduce the manufacturing cost.

[Description of the drawings]

Fig. 1 is a schematic diagram showing the structure of a reciprocating suction automatic molding machine for paper-plastic products in the present invention.

Figures 2 to 11 are schematic diagrams showing the continuous steps of the manufacturing method of the reciprocating suction automatic molding machine for paper-plastic products in the present invention.

Automatic molding machine 1 Lower suction mold 10 Guide rail 11

Headbox 20 Cold-press upper die 30 Hot-press upper die 41

Hot-pressing lower die 42 Receiving tray 50 Finished product P Finished product P

【detailed description】

The present invention distinguishes between a reciprocating automatic suction molding machine for paper-plastic products and a manufacturing method of an automatic reciprocating suction molding machine for paper-plastic products, which will be explained in order as follows.

The overall structural composition of the "reciprocating automatic suction molding machine for paper and plastic products" claimed in the present invention is shown in FIG. 1, which is an automatic molding machine 1 particularly suitable for manufacturing paper and plastic products. The structural composition mainly includes Have:

A slurry box 20, which contains slurry inside, and the top surface is open;

The suction suction mold 10 is supported by the installation and exists at the opening of the top surface of the pulp box 20. The mold surface of the lower suction suction mold 10 faces upward. When it is in the zero state (or initial state), the suction The mold surface of the slurry mold 10 is higher than the slurry surface of the slurry box 20. The mold surface of the lower suction mold 10 is convex. The lower suction mold 10 is subjected to an external power mechanism (such as a power cylinder, but not Restricted) It can be driven to move up and down when necessary. The lower suction mold 10 is connected to a first pumping device, which can accept the suction (vacuum) or blowing (blowing) effect of the first pumping device ;

A cold-pressed upper die 30, which is hung on a guide rail 11 and exists in a position above the lower slurry suction die 10 when it is in the zero state (or initial state), the die surface of the cold-pressed upper die 30 Downward, the mold surface of the cold-pressed upper mold 30 and the mold surface of the lower suction mold 10 are symmetrical in shape, so the mold surface of the cold-pressed upper mold 30 is concave, and the cold-pressed upper mold 30 is subjected to an external Driven by the power mechanism, it can perform horizontal and horizontal displacement along the guide rail 11 when needed. The cold-pressed upper die 30 is connected to a second pumping device, which can accept the suction (vacuum) action or blowing of the second pumping device ( Air supply)

A hot-press upper die 41 is connected to the cold-press upper die 30 at a fixed distance and jointly hanged on the guide rail 11. The hot-press upper die 41 and the cold-press upper die 30 are driven by the same external power mechanism Along with the guide rail 11, the horizontal and lateral displacement actions are performed together. The mold surface of the hot press upper mold 41 faces downward. The mold surface of the hot press upper mold 41 and the cold press upper mold 30 have the same shape, so the heat The die surface of the press upper die 41 is concave, and the hot press upper die 41 is connected to a third pumping device, which can accept the suction (vacuum) or blowing (blowing) effect of the third pumping device;

A hot-pressing lower die 42 is disposed on a platform on the side (for example, the right side) of the slurry box 20 higher than the slurry box 20, and the die surface of the hot-pressing lower die 42 faces upward and is aligned with the hot-pressing upper The mold 41, the mold surface of the hot press lower mold 42 and the mold surface of the hot press upper mold 41 are symmetrical in shape, so the mold surface of the hot press lower mold 42 is convex, and the hot press lower mold 42 is subjected to an external Powered by a power mechanism (such as a power cylinder, but not limited), it can move up and down when needed. The hot-press lower die 42 is connected to a fourth pumping device, which can accept the suction of the fourth pumping device ( Vacuum) function or blowing (air supply) function;

A receiving tray 50 is arranged on the same platform as the hot-pressing lower die 42 and exists outside the hot-pressing lower die 42, the receiving tray 50 is subject to an external power mechanism (such as a power cylinder, but not limited) ) Driven to make up and down displacement when needed. The receiving tray 50 mainly has a platform for receiving the finished products of paper and plastic products.

The above-mentioned structure constitutes the automatic reciprocating suction forming machine for paper-plastic products claimed in the present invention, in which the mentioned external power mechanism and the first, second, third, fourth and fifth pumping devices are not the present invention The main structure of the, and its role can be clearly established, so it is not shown in the drawings, so as not to make the drawings too complicated and difficult to distinguish.

According to the structure and composition of the above-mentioned automatic reciprocating suction molding machine on paper and plastic products, the present invention also claims a method for manufacturing a reciprocating suction automatic molding machine on paper and plastic products, which uses the above-mentioned reciprocating suction slurry on paper and plastic products Automatic molding machine, and then implement the following steps:

1. As shown in FIG. 2, the external power mechanism connected to the lower suction mold 10 is started, and the lower suction mold 10 is driven to descend and immerse into the slurry of the pulp box 20, and is pumped through the connected first The device starts to suck the slurry to form a blank layer on the mold surface of the lower slurry suction mold 10;

2. As shown in FIG. 3, when the suction time is up, the lower suction mold 10 adsorbs the blank layer and moves up away from the pulp surface to return to the zero position (the opening of the top surface of the pulp box 20); process In the process, the first pumping device continues to pump to gradually dehydrate and dehydrate the embryo layer;

3. As shown in FIG. 4, the external power mechanism connected to the lower suction mold 10 is started, and the lower suction mold 10 is driven to attract the blank layer to rise and enter the cold press upper mold 30 to close the mold and squeeze The blank layer is dehydrated. During the process, the second pumping device connected to the cold-pressed upper mold 30 also activates the suction function, helping to gradually dehydrate the blank layer. When the mold closing time is reached, the blank The layer has been dehumidified to become a preliminary embryo, and then the second pumping device connected to the cold-press upper mold 30 stops the suction function and converts into a blowing (blowing) function, so that the preliminary embryo and the cold-press upper mold 30 When it is disconnected, the first pumping device connected to the lower suction mold 10 still performs suction to attract the initial embryo;

4. As shown in FIG. 5, let the lower suction mold 10 absorb the initial embryonic product to disengage the cold-pressed upper mold 30 and drop a distance, and then start the external power mechanism connected to the cold-pressed upper mold 30, Drive the cold-pressed upper mold 30 and the hot-pressed upper mold 41 to move laterally along the guide rail 11 until the hot-pressed upper mold 41 is directed downward to the lower slurry suction mold 10 to stop;

5. As shown in FIG. 6, the lower suction mold 10 drives the initial embryo to rise, enters the hot press upper mold 41 and closes the mold, and then the hot press upper mold 41 starts suction through the connected third pumping device It acts to attract the primary embryo, and at the same time, the lower suction mold 10 stops the suction effect and converts into a blowing (air supply) role, so that the initial embryo is separated from the lower suction mold 10;

6. As shown in FIG. 7, the lower suction mold 10 disengages the hot-press upper mold 41 and descends back to the zero position (at the opening of the top surface of the pulp box 20 ). During the process, the hot-press upper mold 41 adsorbs the primary embryo along the guide rail 11 and moves back to the top of the hot-pressing lower mold 42, and the cold-pressing upper mold 30 also returns to the lower suction mold 10 along the guide rail 11 Directly above;

7. As shown in FIG. 8, the external power mechanism connected to the hot-pressing lower die 42 is activated to drive the hot-pressing lower die 42 into the hot-pressing upper die 41 to close the mold. Between the hot-pressing upper die 41 and the hot-pressing lower die 41, the hot-pressing upper die 41 and the hot-pressing lower die 42 jointly perform hot press setting operation on the preliminary embryo for a period of time to make the preliminary embryo complete Drying into a paper-plastic product. During the process, the third and fourth pumping devices start the suction function to cause thermal circulation, so that the initial embryo can be dried as soon as possible into a paper-plastic product; The lower suction mold 10 can be immersed again into the slurry box 20 to suck the slurry to form a blank layer on the mold surface of the lower suction mold 10. The re-suction of the lower suction mold 10 belongs to another One (second) production cycle, that is, at this time, the first production cycle is still in progress, and the second production cycle has already begun;

8. As shown in FIG. 9, when the operation time of the hot press setting is over, the third pumping device connected to the hot press upper mold 41 still activates the suction function to attract the paper-plastic product while the hot press lower mold The fourth pumping device connected to 42 starts the blowing (blowing) function to disengage the paper-plastic product from the hot-pressing lower die 42, and then the hot-pressing lower die 42 moves downward back to position; then the cold pressing The external power mechanism connected to the upper die 30 and the hot press upper die 41 is activated, driving the hot press upper die 41 to move along the guide rail 11 to directly above the receiving tray 50, and the cold press upper die 30 is also Follow the synchronous movement to the top of the hot pressing lower die 42; in the process, the lower slurry suction die 10 will attract the blank layer belonging to the second production cycle to rise back to the zero position and stay, waiting for the instructions of subsequent operations;

9. As shown in FIG. 10, the external power mechanism connected to the receiving tray 50 is activated, and the receiving tray 50 is driven to rise to a specified position at a drop distance from the hot press upper die 41 to stay, the drop distance It is just for the paper-plastic product to drop smoothly, and does not affect the subsequent movement of the hot-pressing upper die 41, and then the third pumping device connected to the hot-pressing upper die 41 stops the suction action and converts to blowing (air supply) ) Function to separate the paper-plastic product from the hot-press upper mold 41, so the finished product P of the paper-plastic product is blown down on the platform of the receiving tray 50 to stay;

10. As shown in FIG. 11, finally, the external power mechanism connected to the hot press upper die 41 and the cold press upper die 30 is started, driving the hot press upper die 41 to move along the guide rail 11 to the hot press Directly above the lower mold 42, and the cold-pressed upper mold 30 also moves synchronously to directly above the lower suction mold 10; at the same time, the external power mechanism connected to the receiving tray 50 drives the receiving tray 50 down Return to the original position, so the finished product P of the paper-plastic product can be taken away and assembled to complete a cycle belonging to the first production cycle. The action of taking the finished product P of the paper-plastic product away can be directly taken manually It can be removed automatically by the robot arm; when the cold-pressed upper mold 30 is moved to align with the lower suction mold 10, the lower suction mold 10 can also be allowed to immediately adsorb the blank layer belonging to the second production cycle Ascending, entering the cold-pressing upper mold 30 and closing the mold to squeeze the blank layer for dehydration, and then to perform the subsequent operations of the second production cycle.

After the above steps are carried out one by one, the expected paper-plastic products can be manufactured and shaped, and the production cycle can be greatly shortened, and the relative production time can be greatly saved to reduce the manufacturing cost.

Claims

An automatic reciprocating suction forming machine for paper-plastic products, which is characterized by comprising:

A slurry box, containing slurry inside, the top surface is open;

The suction suction mold is supported by the installation and exists at the opening of the top surface of the pulp box. The mold surface of the lower suction mold is facing upward. When it is in the zero state, the mold surface of the lower suction mold is higher than that of the pulp box. On the slurry surface, the lower suction mold is driven by an external power mechanism to perform up and down displacement when needed. The lower suction mold is connected to a first pumping device to accept the suction or blowing of the first pumping device effect;

A cold-pressed upper mold is hung on a guide rail and exists above the lower suction mold. The mold surface of the cold-pressed upper mold faces downward. The mold surface of the cold-pressed upper mold and the lower suction mold The die surface is symmetrical in shape. The cold-pressed upper die is driven by an external power mechanism to perform horizontal and horizontal displacement along the guide rail when needed. The cold-pressed upper die is connected to a second pumping device to accept the second pumping device Suction or blowing effect;

A hot press upper die is fixedly connected with the cold press upper die at a fixed distance and is jointly hung on the guide rail. The hot press upper die and the cold press upper die are driven by the same external power mechanism to make the horizontal along the guide rail Lateral displacement action, the mold surface of the hot press upper mold is facing down, the mold surface of the hot press upper mold and the cold press upper mold have the same shape, and the hot press upper mold is connected to a fourth pumping device to accept The suction or blowing effect of the fourth pumping device;

A hot-pressing lower mold is arranged on another platform on the other side of the headbox, the mold surface of the hot-pressing lower mold faces upward, and the mold surface of the hot-pressing lower mold and the hot-pressing upper mold are shaped Symmetrical, the hot-pressing lower die is driven by an external power mechanism to perform up and down displacement when needed. The hot-pressing lower die is connected to a fifth pumping device to accept the suction or blowing effect of the fifth pumping device; and

A receiving tray is arranged on the same side as the hot-pressing lower die and exists outside the hot-pressing lower die. The receiving tray is driven by an external power mechanism to perform up and down displacement when required. The receiving tray is There is a platform for receiving finished products of paper and plastic products.
A method for manufacturing an automatic reciprocating slurry suction molding machine on paper-plastic products. The reciprocating slurry suction automatic molding machine on paper-plastic products is characterized in that it includes:

A slurry box, containing slurry inside, the top surface is open;

The suction suction mold is supported by the installation and exists at the opening of the top surface of the pulp box. The mold surface of the lower suction mold is facing upward. When it is in the zero state, the mold surface of the lower suction mold is higher than that of the pulp box. On the slurry surface, the lower suction mold is driven by an external power mechanism to perform up and down displacement when needed. The lower suction mold is connected to a first pumping device to accept the suction or blowing of the first pumping device effect;

A cold-pressed upper mold is hung on a guide rail and exists above the lower suction mold. The mold surface of the cold-pressed upper mold faces downward. The mold surface of the cold-pressed upper mold and the lower suction mold The die surface is symmetrical in shape. The cold-pressed upper die is driven by an external power mechanism to perform horizontal and horizontal displacement along the guide rail when needed. The cold-pressed upper die is connected to a second pumping device to accept the second pumping device Suction or blowing effect;

A hot press upper die is fixedly connected with the cold press upper die at a fixed distance and is jointly hung on the guide rail. The hot press upper die and the cold press upper die are driven by the same external power mechanism to make the horizontal along the guide rail Lateral displacement action, the mold surface of the hot press upper mold is facing down, the mold surface of the hot press upper mold and the cold press upper mold have the same shape, and the hot press upper mold is connected to a third pumping device to accept The suction or blowing effect of the third pumping device;

A hot-pressing lower mold is arranged on another platform on the other side of the headbox, the mold surface of the hot-pressing lower mold faces upward, and the mold surface of the hot-pressing lower mold and the hot-pressing upper mold are shaped Symmetrical, the hot-pressing lower die is driven by an external power mechanism to perform up and down displacement when needed. The hot-pressing lower die is connected to a fourth pumping device to accept the suction or blowing effect of the fourth pumping device; and

A receiving tray is arranged on the same side as the hot-pressing lower die and exists outside the hot-pressing lower die. The receiving tray is driven by an external power mechanism to perform up and down displacement when required. The receiving tray is There is a platform for receiving finished products of paper and plastic products;

Among them, the following steps are implemented:

(1). Start the external power mechanism connected to the lower suction mold, drive the lower suction mold to descend and immerse into the slurry of the pulp box, and start suction through the connected first pumping device, in order to A blank layer is formed on the mold surface of the lower suction mold;

(2) When the suction time is up, the lower suction mold adsorbs the blank layer and moves up away from the pulp surface to return to the zero position. During the process, the first pumping device continues the suction function to make the blank layer Gradually dehydrate and dehumidify;

(3). Start the external power mechanism connected to the lower suction mold, drive the lower suction mold to attract the blank layer to rise, enter the cold press upper mold, close the mold and squeeze the blank layer to dehydrate, the process The second pumping device connected to the cold-pressed upper die also activates the suction function to dehydrate and dehumidify the blank layer into an initial embryo. When the mold closing time is reached, the cold-pressed upper die is connected The second pumping device stops the pumping action and converts it into a blowing action to disengage the initial embryo from the cold-pressed upper mold. The first pumping device connected to the lower suction mold still performs the pumping action to attract The initial embryo product;

(4). Let the lower suction mold absorb the initial embryonic product, disengage the cold press upper mold and drop a distance, then start the external power mechanism connected to the cold press upper mold to drive the cold press upper mold and The hot pressing upper mold moves laterally along the guide rail until the hot pressing upper mold is aligned with the lower slurry suction mold;

(5). The lower suction mold drives the initial embryo to rise, enter the hot press upper mold and close the mold, and then the hot press upper mold opens the suction effect through the connected third pumping device to adsorb the initial embryo At the same time, the suction effect of the lower suction mold is stopped, and it is converted into a blowing function, so that the initial embryo product is separated from the lower suction mold;

(6). The lower suction mold releases the hot-press upper mold and descends back to the zero position. During the process, the hot-press upper mold attracts the initial embryo along the guide rail and moves back to the position. The hot press lower mold is directly above, and the cold press upper mold is also returned along the guide rail to be directly above the lower slurry suction mold;

(7). Start the external power mechanism connected to the hot-press lower die, drive the hot-press lower die to rise and close the inner die of the hot-press upper die, then the hot-press upper die and the hot-press lower die jointly The preliminary embryos are hot-pressed and shaped to dry the preliminary embryos into a paper-plastic product. In the process, the third and fourth pumping devices all start the suction function to cause a thermal cycle, so that the preliminary embryos are dried into paper as soon as possible. Plastic products

(8). When the time for hot press setting is up, the hot press upper mold still absorbs the paper-plastic product, and the fourth pumping device connected to the hot press lower mold stops the suction function and converts it into a blowing function to make the The paper-plastic product is disengaged from the hot-pressing lower mold, and then the hot-pressing lower mold is moved down to return to position; then the external power mechanism connected to the cold-pressing upper mold and the hot-pressing upper mold is started to drive the heat The pressing upper mold moves along the guide rail to directly above the receiving tray, and at the same time, the cold pressing upper mold also moves synchronously to directly above the hot pressing lower mold;

(9). Start the external power mechanism connected to the receiving tray, and drive the receiving tray to a specified position with a drop distance from the hot press upper die to stay, the drop distance is just for the paper-plastic product It drops smoothly and does not affect the subsequent movement of the hot-press upper die, and then the third pumping device connected to the hot-press upper die stops the suction function and converts into a blowing function, so that the paper-plastic product and the hot press The mold is disengaged, so the finished product of the paper-plastic product is blown down on the platform of the receiving tray;

(10). The external power mechanism connected by the hot press upper mold and the cold press upper mold is started, driving the hot press upper mold to move along the guide rail to the hot press lower mold directly above, while the cold press upper The mold also moves synchronously to the top of the lower suction mold; at the same time, the external power mechanism connected to the receiving tray drives the receiving tray down to the original position, so the finished product of paper and plastic can be completed Take away and gather to complete a cycle that belongs to the first production cycle.
The method for manufacturing an automatic reciprocating slurry suction molding machine for paper-plastic products according to claim 2, characterized in that: when the hot press upper mold and the hot press lower mold are closed to perform hot press setting, the lower suction mold It can be immersed again into the slurry box to suck the slurry, so as to form a blank layer belonging to the second production cycle on the mold surface of the lower suction mold. When the suction time is up, the lower suction mold is adsorbed The blank layer belonging to the second production cycle rises back to the zero position and stays, waiting for the instructions of subsequent operations.
The method for manufacturing an automatic reciprocating slurry suction molding machine for paper-plastic products according to claim 2, characterized in that when the cold-pressed upper die moves back to align with the lower suction die, the lower suction die is attracted The blank layer belonging to the second production cycle rises, enters the cold press upper mold and closes the mold to squeeze the blank layer to dehydrate, and then performs the subsequent operations of the second production cycle.