Molded pulp product convenient for paper-plastic separation and preparation method therefor, and mesh pressing frame

Abstract

A molded pulp product convenient for paper-plastic separation and a preparation method therefor, and a mesh pressing frame. The molded pulp product convenient for paper-plastic separation comprises a main body (1) made of molded pulp and a thin film covering at least one side of the main body, wherein the main body (1) is provided with an accommodating cavity (11) and an edge portion (12) arranged in the circumferential direction of the accommodating cavity, the edge portion (12) is provided with a notch (121), the notch (121) is formed by extending from the end of the edge portion (12) away from the accommodating cavity (11) towards the accommodating cavity (11), and the thin film covers the notch (121). In the product, it is convenient to separate the thin film from the main body, the production efficiency is high, less material used is required overall, the cost is lower than that of existing molded pulp products convenient for separation, and less cost is required for quality management.

Description

A paper pulp molded product convenient for paper-plastic separation and a preparation method thereof, and a press net frame TECHNICAL FIELD

[0001] The present application relates to the technical field of paper pulp molding, in particular to a paper pulp molded product convenient for paper-plastic separation and a preparation method thereof, and a press net frame. BACKGROUND

[0002] Paper pulp molding is a three-dimensional papermaking technology. It uses waste paper as raw material and is molded into a certain shape of paper product by a special mold on a molding machine. It has four advantages: the raw material can be waste paper, including board paper, waste carton paper, and waste white edge paper, etc., with a wide source; for the food packaging industry with higher requirements, the raw material can be plant fiber, including sugarcane residue, straw, bamboo, corn stalk, and wood fiber, etc. Its production process includes pulping, adsorption forming, and drying and setting, etc., and is harmless to the environment; it can be recycled and reused; the volume is smaller than foamed plastic, and it can be overlapped, which is convenient for transportation. Paper pulp molding is developing rapidly, and is more used for industrial cushion packaging in addition to lunch boxes and tableware.

[0003] The original paper pulp molded product has recyclable and fully degradable properties, but after film coating processing, the film is difficult to separate from the paper pulp molded product due to adhesion, and the coated paper pulp molded product cannot meet the recycling requirements and can only be discarded with ordinary garbage, which violates the environmental protection packaging characteristics of paper pulp molding.

[0004] The existing paper pulp molded product adds a separation bit extending outward to the outer edge of the product to facilitate the separation of the film from the paper pulp molded product, but this method cannot be applied to the existing production line due to the addition of extra materials, and is only suitable for manual packaging line, which has low production efficiency. If the original production line equipment is modified, the investment cost is too large. In addition, the size of the protruding separation bit is difficult to control, and the quality management requires a lot of cost, and the amount of film is also relatively increased, further increasing the preparation cost.

[0005] Therefore, there is an urgent need for a paper pulp molded product convenient for paper-plastic separation and high in preparation efficiency. TECHNICAL PROBLEM

[0006] The first object of the present application is to provide a paper pulp molded product convenient for paper-plastic separation, which solves the problem of low production efficiency and high cost of products meeting paper-plastic separation.

[0007] The second object of the present application is to provide a press net frame for preparing the above-mentioned paper pulp molded product convenient for paper-plastic separation.

[0008] The third object of the present application is to provide a pulp film molding equipment, which comprises the above-mentioned press net frame.

[0009] The fourth object of the present application is to provide a method for preparing a pulp molded product facilitating paper-plastic separation, which utilizes the above-mentioned screen frame to prepare the above-mentioned pulp molded product facilitating paper-plastic separation.

[0010] The fifth object of the present application is to provide a method for preparing a pulp molded product facilitating paper-plastic separation, which is used to prepare the above-mentioned pulp molded product facilitating paper-plastic separation. Technical solutions

[0011] To achieve the first object of the present application, the pulp molded product facilitating paper-plastic separation comprises a main body made of pulp molding and a film covering at least one side of the main body, the main body is provided with a containing cavity and an edge part arranged along the circumference of the containing cavity, the edge part is provided with a notch, the notch is formed by extending from one end of the edge part away from the containing cavity to the direction close to the containing cavity, and the film covers the notch.

[0012] Further, the notch is arranged at the corner of the edge part.

[0013] Further, the profile of the notch is arc-shaped.

[0014] Further, the size of the maximum width of the notch is 10mm-20mm, and the depth of the notch is 2mm-7mm.

[0015] To achieve the second object of the present application, the screen frame is arranged in a pulp film forming equipment, the pulp film forming equipment comprises a mold, the screen frame is installed above the mold, the pulp film forming equipment is used to prepare the above-mentioned pulp molded product facilitating paper-plastic separation, the screen frame comprises at least one screen frame component, the screen frame component is arranged in a hollow manner, the screen frame component comprises a frame matching the mold, and the frame is provided with a protruding part extending to the hollow interior.

[0016] Further, the protruding part is arranged at the corner of the frame.

[0017] Further, the edge of the protruding part extending into the hollow interior is arc-shaped.

[0018] Further, the outer edge of the frame of the screen frame component away from the hollow interior is provided with a groove, the groove penetrates the screen frame component along a first direction, and the first direction is parallel to the extending direction of the hollow interior.

[0019] To achieve the third object of the present application, the pulp film forming equipment comprises a mold, a screen frame is installed above the mold, and the screen frame is the above-mentioned screen frame.

[0020] To achieve the fourth object of the present application, the preparation method of the pulp molded product facilitating paper-plastic separation of the present application is used to prepare the pulp molded product facilitating paper-plastic separation of any of the above-mentioned solutions, and comprises the following steps: S1: pulp preparation; S2: wet embryo preparation: the pulp enters the mold of the pulp film forming equipment, and is formed into a wet embryo through vacuum suction pulp forming dehydration; S3: drying and shaping: the wet embryo is taken out and transferred to a hot-pressing forming mold, and the wet embryo is subjected to pressure drying and shaping on the hot-pressing forming mold to form a semi-finished product; S4: film covering of the semi-finished product: the semi-finished product is transferred to a film covering area, and a film is softened and covered on the semi-finished product, and the film covers the notch; S5: edge cutting and shaping: the semi-finished product with the film covering is moved to an edge cutting area for edge cutting to form the pulp molded product facilitating paper-plastic separation.

[0021] To achieve the fifth object of the present application, the preparation method of the pulp molded product facilitating paper-plastic separation of the present application is used to prepare the pulp molded product facilitating paper-plastic separation of any of the above-mentioned solutions, and comprises the following steps: S1: pulp preparation; S2: wet embryo preparation: the pulp enters the mold of the pulp film forming equipment, and is formed into a wet embryo through vacuum suction pulp forming dehydration; S3: drying and shaping: the wet embryo is taken out and transferred to a hot-pressing forming mold, and the wet embryo is subjected to pressure drying and shaping on the hot-pressing forming mold to form a semi-finished product; S4: notch cutting: the semi-finished product is moved to a cutting area, and a notch is cut on the semi-finished product by using a cutting device; S5: film covering of the semi-finished product: the semi-finished product with the cutting is transferred to a film covering area, and a film is softened and covered on the semi-finished product, and the film covers the notch; S6: edge cutting and shaping: the semi-finished product with the film covering is moved to an edge cutting area for edge cutting to form the pulp molded product facilitating paper-plastic separation. Advantages

[0022] The present application sets a notch, and the notch is also covered with a film, so that there is a specific separation starting point between the film and the main body, the film and the main body are completely separated, the setting of the notch does not affect the size of the outer edge of the product itself, the existing automatic production line is adapted, there is no excess material to affect automatic edge cutting and shaping in the production line, and the present application is suitable for automatic production, so that the production efficiency of the pulp molded product of the present application is high, the overall material consumption is less than that of the existing product, the cost is lower than that of the existing pulp molded product facilitating separation, and the quality management cost is low.

[0023] The notch of the present application is arranged at the corner of the edge part, which is beneficial to the tightness between the film and the main body, and there is no gap or incompleteness problem.

[0024] The notch of the present application is arranged in an arc shape, which conforms to the shape of a finger, can grasp the film in a small space, and is convenient for separating the film and the main body.

[0025] The size of the notch of the application is set according to the size of the finger, which facilitates the finger to hold the film without affecting the key structure of the product, and meanwhile, the strength of the turn-up is not affected too much. When the force is applied, the finger can hold enough film to tear, avoiding the dispersion of the force point and the film from being broken and remaining on the main body when being separated.

[0026] The pressing net frame of the application is detachably installed above the mold, which does not affect the original structure of the production line equipment, the convex part can form a notch on the pulp molded product during preparation, and the number of the pressing net frame assembly can be set according to the production needs to meet the various needs of users.

[0027] The position and shape of the convex part of the pressing net frame make the formed pulp molded film product better in quality and more convenient for paper-plastic separation.

[0028] The setting of the groove of the pressing net frame facilitates the installation and disassembly between multiple pressing net frame assemblies.

[0029] The pulp molded film forming equipment of the application can be used to prepare the pulp molded product of the application, which is convenient for paper-plastic separation, and the pulp molded film forming equipment comprises a pressing net frame, which can form a notch on the pulp molded product and is efficient and convenient.

[0030] The first preparation method provided by the application can be fully automated, has high production efficiency, high quality of finished products, and low cost.

[0031] The second preparation method provided by the application does not need a special pressing net frame, only needs to add a cutting step, and the preparation of the pulp molded product convenient for paper-plastic separation of the application can be realized by using existing equipment. BRIEF DESCRIPTION OF DRAWINGS

[0032] Fig. 1 is a structural schematic view of the main body of the pulp molded product convenient for paper-plastic separation of the application.

[0033] Fig. 2 is a structural schematic view of the pulp molded product convenient for paper-plastic separation of the application.

[0034] Fig. 3 is a partial enlarged view of I in Fig. 2.

[0035] Fig. 4 is a structural schematic view of the pressing net frame of the application.

[0036] Fig. 5 is a structural schematic view of the pressing net frame assembly of the application.

[0037] Fig. 6 is a structural schematic view of the matching of the pressing net frame and the mold of the application.

[0038] The application will be further described below in combination with the drawings and examples. Embodiment of the application

[0039] First embodiment: pulp molded product convenient for paper-plastic separation

[0040] Referring to FIG. 1 to FIG. 3, the pulp molded product for facilitating paper-plastic separation of the present embodiment comprises a main body 1 made of pulp molding and a film 2 covering at least one side of the main body 1. In the present embodiment, the film 2 is a resin film 2. In the present embodiment, the resin film 2 covers the surface of the main body 1. The resin film 2 can be made of polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), polystyrene (PS), polylactic acid (PLA), polybutylene adipate terephthalate (PBAT), polyamide (PA), etc. The thickness of the resin film 2 is generally between 0.03 mm and 0.2 mm, and the specific material and thickness can be designed according to the needs. Further, the film in the present embodiment can be a mixture of the above materials.

[0041] The main body 1 is provided with a receiving cavity 11 and an edge portion 12 arranged circumferentially along the receiving cavity 11. The edge portion 12 is provided with a notch 121 formed by extending from one end of the edge portion 12 away from the receiving cavity 11 to the direction close to the receiving cavity 11, and the resin film 2 covers the notch 121. In the present embodiment, the notch 121 is arranged at the corner of the edge portion 12. Specifically, the notch 121 can also be arranged at any position of the edge portion 12. In the present embodiment, the edge portion 12 is rectangular, and the notch 121 is arranged at one of the four corners of the rectangle. Further, the number of notches 121 can also be multiple, such as two, three, four, etc. Further, the notches 121 can also be arranged at any of the four corners of the rectangle. In the present embodiment, the profile of the notch 121 is arc-shaped. Specifically, the shape of the notch 121 is similar to that of a finger. The size a of the maximum width of the notch 121 is 10 mm~20 mm, and the depth b of the notch 121 is 2 mm~7 mm. Specifically, the size a of the maximum width of the notch 121 is the maximum distance between the two sides of the notch, and the depth b of the notch 121 is the distance between the point farthest from the receiving cavity 11 and the point closest to the receiving cavity 11 of the edge portion 12 at the notch 121. In the present embodiment, the size a of the maximum width of the notch 121 is 15.26 mm, and the depth b of the notch is 5.75 mm.

[0042] The pulp molded product of the embodiment is provided with a notch 121, and the notch 121 is also covered with a resin film, so that there is a specific separation starting point between the resin film 2 and the main body 1, facilitating complete separation between the resin film 2 and the main body 1, and the setting of the notch 121 does not affect the outer edge size of the product itself, adapts to the existing automatic production line, and there is no excess material affecting the automatic edge cutting and shaping in the production line, which is suitable for automatic production, so that the pulp molded product of the present application has high production efficiency, the overall material usage is less than that of the existing product, the cost is lower than that of the existing pulp molded product facilitating separation, and the quality management cost is low. The notch 121 is arranged at the corner of the edge portion 12, which is beneficial to the tightness between the resin film 2 and the main body 1, and there is no gap or incomplete problem. The shape and size of the notch 121 are consistent with the size of the finger, which facilitates the finger to grasp the resin film 2 without affecting the key structure of the product, and does not affect the flanging strength. When exerting force, the finger can grasp enough resin film 2 to tear it open, avoiding dispersion of the force point and avoiding breakage of the resin film 2 during separation and remaining on the main body 1.

[0043] Second embodiment: screen frame embodiment

[0044] Referring to FIGS. 4 to 6, the screen frame 3 of the embodiment is arranged in a pulp molding and film forming device, which includes a mold 4, and the screen frame 3 is installed above the mold 4. The pulp molding and film forming device is a common pulp molding and film forming device for those skilled in the art. Except for the screen frame, its structure and function are well known to those skilled in the art.

[0045] The mold 4 includes a metal mesh 41, and the shape of the metal mesh 41 matches the outer contour of the pulp molded product.

[0046] The screen frame 3 includes at least one screen frame assembly 31, and in the embodiment, the screen frame 3 includes twelve screen frame assemblies 31. The screen frame assembly 31 is hollow, and includes a frame 311 matched with the mold 4, and the frame 311 is provided with a protruding portion 313 extending into the hollow interior 312. In the embodiment, the frame 311 is rectangular, and the protruding portion 313 is arranged at the corner of the frame 311, i.e., at one of the four corners of the rectangle. Further, the protruding portion 313 can also be arranged at any position of the frame 311. Still further, the number of protruding portions 313 can be multiple, such as two, three, four, etc., and further, the protruding portions 313 can be arranged at any of the four corners of the rectangle. In the embodiment, the edge of the protruding portion 313 extending into the hollow interior 312 is arc-shaped. The specific shape and size of the part of the protruding portion 313 extending into the hollow interior 312 match the size and shape required by the notch of the pulp molded product.

[0047] The frame 311 of the screen frame assembly 31 is provided with a groove 314 away from the outer edge of the hollow interior 312, the groove 314 penetrates the screen frame assembly 31 along a first direction, the first direction is parallel to the extension direction of the hollow interior 312, and it should be noted that the extension direction of the hollow interior 312 here refers to the thickness direction of the screen frame assembly 31.

[0048] The screen frame 31 of the embodiment can be detachably mounted above the mold 4, does not affect the original structure of the production line equipment, the setting of the protruding part 313 can form the notch 121 on the pulp molded product during preparation, and the number of the screen frame assembly 31 can be set according to production needs to meet the needs of users. The position and shape of the protruding part 313 make the formed pulp molded product better in quality and more convenient for paper-plastic separation. The setting of the groove 314 facilitates the installation and disassembly between the plurality of screen frame assemblies 31.

[0049] Third embodiment: pulp molded product preparation method for facilitating paper-plastic separation

[0050] The preparation method of the embodiment utilizes the pulp film forming equipment to prepare the pulp molded product for facilitating paper-plastic separation in the first embodiment. Specifically, the pulp film forming equipment in the embodiment includes a mold, and a screen frame is mounted above the mold. The screen frame in the embodiment is the screen frame 3 of the second embodiment.

[0051] The preparation method of the embodiment includes the following steps:

[0052] S1: pulp preparation, the specific method of pulp preparation in the embodiment is a pulp preparation method known to those skilled in the art, and the pulp preparation raw material can be sugarcane fiber, bamboo fiber, wood fiber, straw fiber, and other pulp preparation raw materials known to those skilled in the art. The pulp preparation raw material is prepared into a pulp of a certain concentration through processes such as disintegration, grinding, and adding chemical additives. In the embodiment, the concentration of the pulp is 0.3% to 0.5%;

[0053] S2: wet embryo preparation: the pulp enters the mold 4 of the pulp film forming equipment, and is formed into a wet embryo through vacuum suction molding and dehydration, wherein the mold 4 is provided with the screen frame 3;

[0054] Specifically, the pulp slurry is injected into the forming slurry pool of the pulp film forming device, the mold is lowered into the slurry pool, and the pulp slurry enters the mold. Referring to FIG. 6, the mold 4 includes a metal mesh 41, and the diagram shown is a schematic diagram in which the bottom of the metal mesh is omitted. The metal mesh 41 forms the peripheral wall of the mold 4. The mold 4 is provided with a suction hole 42 at the bottom. The suction hole 42 can also be arranged on the peripheral wall of the mold 4 and extend to the top, so as to accelerate the discharge of the slurry and further improve the forming effect of the product. Then, the pulp slurry is adsorbed on the inner surface of the mold 4 under the action of vacuum negative pressure. The metal mesh 41 is used to improve the forming performance and retain the slurry to form the main body 1 of the product. The injection time is 3s-5s, the suction time is 5s-15s, and the suction vacuum negative pressure is -0.04 MPa -0.07 MPa.

[0055] After the forming, the mold 4 is lifted to leave the slurry pool. The film washing and water outlet pipe of the pulp film forming device sprays water on the mold 4 to wash and remove the excess slurry. The spraying type cleaning process can remove the excess slurry and reduce the roughness of the finished product. Then, the excess water is removed by vacuum dewatering to form a wet embryo. The dewatering time is 10s-40s, the vacuum degree is 500 Pa-800 Pa, and the air pressure is 0.15 MPa-0.35 MPa.

[0056] The pulp film forming device described in the embodiment is a common pulp film forming device for those skilled in the art. Except for the pressure mesh frame, the structure and function thereof are well known to those skilled in the art.

[0057] S3: drying and setting: the wet embryo is taken out and transferred to a hot pressing forming mold. The wet embryo is pressed and dried in the hot pressing forming mold to form a semi-finished product.

[0058] Specifically, the transfer method of the wet embryo is that the transfer assembly of the pulp film forming device is lowered to coincide with the mold 4. The wet embryo is transferred to the hot pressing forming mold by vacuum suction. The structure of the transfer assembly is well known to those skilled in the art.

[0059] The structure of the hot pressing forming mold and the hot pressing method are well known to those skilled in the art. In the embodiment, the specific hot pressing parameters are as follows: the temperature of the hot pressing forming mold is 150℃-250℃, the hot pressing time is 10s-40s, and the pressure is 20t-40t.

[0060] S4: film covering of semi-finished product: the semi-finished product is transferred to the film covering area, the resin film is softened and covered on the semi-finished product, and the resin film covers the notch.

[0061] The specific structure and use method of the film coating area are well known to those skilled in the art, and mainly by transferring the semi-finished product to the mold of the film coating area through a mechanical arm suction cup, heating the resin film on the mold of the film coating area by a heating plate above the mold to soften the resin film, and vacuum adsorbing the resin film on the mold of the film coating area to adhere to the semi-finished product to form a film-coated semi-finished product. The surface of the mold of the film coating area is coated with Teflon to make the product easy to be demolded. At the same time, since there is no main fiber at the notch position, the resin film in this area will contact the mold, and the Teflon coating can avoid the softened resin film remaining on the mold.

[0062] S5: trimming and shaping: moving the film-coated semi-finished product to the trimming area for trimming to form a paper pulp molded product convenient for paper-plastic separation.

[0063] The specific structure, method and requirements of the trimming and shaping equipment are well known to those skilled in the art.

[0064] The preparation method of the embodiment can be fully automated, has high production efficiency, produces high-quality finished products, and has low cost.

[0065] Fourth embodiment: paper pulp molded product preparation method for easy paper-plastic separation

[0066] The preparation method of the embodiment can be realized without using the screen frame 3 in the second embodiment, and the pulp film forming equipment in the embodiment is a common pulp film forming equipment for those skilled in the art. The preparation method of the embodiment specifically includes the following steps:

[0067] S1: paper pulp preparation, the paper pulp preparation method of the embodiment is exactly the same as that of the third embodiment;

[0068] S2: wet embryo preparation: the paper pulp enters the mold of the pulp film forming equipment, and is formed into a wet embryo by vacuum suction and dehydration, the wet embryo preparation method of the embodiment is exactly the same as that of the third embodiment;

[0069] S3: drying and shaping: the wet embryo is taken out and transferred to a hot pressing forming mold, the wet embryo is pressed and dried and shaped on the hot pressing forming mold to form a semi-finished product, the drying and shaping method of the embodiment is exactly the same as that of the third embodiment;

[0070] S4: cutting notches: moving the semi-finished product to the cutting area, and cutting notches on the semi-finished product by using a cutting device, wherein the structure and use method of the cutting area device can be realized by using existing cutting process;

[0071] S5: film coating of semi-finished product: transferring the cut semi-finished product to the film coating area, and softening and covering the resin film on the semi-finished product, and the resin film covers the notches, the film coating method of the semi-finished product of the embodiment is exactly the same as that of the third embodiment;

[0072] S6: trimming shaping: moving the semi-finished product after film coating to the trimming area to trim, forming the paper pulp molded product convenient for paper-plastic separation, the trimming shaping method of the embodiment is completely same as the third embodiment.

[0073] The above are only preferred embodiments of the present application, but the design concept of the application is not limited thereto, and more other equivalent embodiments can be included without departing from the concept of the application, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the application. Industrial applicability

[0074] The paper pulp molded product convenient for paper-plastic separation and the preparation method thereof, the screen frame and the pulp film forming equipment provided by the application can be applied to the field of paper pulp molding technology.

[0075] The paper pulp molded product convenient for paper-plastic separation and the preparation method thereof, the screen frame and the pulp film forming equipment provided by the application, wherein the film of the paper pulp molded product convenient for paper-plastic separation is convenient to separate from the main body, the production efficiency is high, the overall material consumption is less than that of the existing product, the cost is lower than that of the existing paper pulp molded product convenient for separation, and the quality management cost is low. The screen frame and the pulp film forming equipment and the preparation method are used for preparing the paper pulp molded product convenient for paper-plastic separation, the production efficiency is high, the quality of the finished product prepared is high, and the cost is low.

Claims

1.A paper pulp molded product facilitating paper-plastic separation, comprising a main body made of paper pulp molding and a film covering at least one side of the main body, characterized in that: the main body is provided with a receiving cavity and an edge portion arranged along the circumference of the receiving cavity, the edge portion is provided with a notch formed by extending from one end of the edge portion away from the receiving cavity to the direction close to the receiving cavity, and the film covers the notch. 2.The paper pulp molded product facilitating paper-plastic separation according to claim 1, characterized in that: the notch is arranged at a corner of the edge portion. 3.The paper pulp molded product facilitating paper-plastic separation according to claim 1 or 2, characterized in that: the profile of the notch is arc-shaped. 4.The paper pulp molded product facilitating paper-plastic separation according to claim 1 or 2, characterized in that: the size of the maximum width of the notch is 10 mm-20 mm, and the depth of the notch is 2 mm-7 mm. 5.A screen frame, arranged in a paper pulp film molding device, the paper pulp film molding device comprising a mold, and the screen frame is installed above the mold, characterized in that: the paper pulp film molding device is used to prepare the paper pulp molded product facilitating paper-plastic separation according to any one of claims 1-4; the screen frame comprises at least one screen frame assembly, the screen frame assembly is hollow, and the screen frame assembly comprises a frame matching the mold, and the frame is provided with a protruding portion extending to the hollow interior. 6.The screen frame according to claim 5, characterized in that: the protruding portion is arranged at a corner of the frame. 7.The screen frame according to claim 5, characterized in that: the edge of the protruding portion extending into the hollow interior is arc-shaped. 8.The screen frame according to any one of claims 5-7, characterized in that: the outer edge of the frame of the screen frame assembly away from the hollow interior is provided with a groove, and the groove penetrates the screen frame assembly along a first direction, and the first direction is parallel to the direction of the hollow interior extension. The preparation method uses the screen frame according to any one of claims 5-8 to prepare the paper pulp molded product facilitating paper-plastic separation according to any one of claims 1-4, and the preparation method comprises the following steps: S1: paper pulp preparation; S2: wet embryo preparation: the paper pulp enters the mold of the paper pulp film molding device, and is formed into a wet embryo by vacuum suction molding dehydration, wherein the mold is provided with the screen frame; S3: drying and shaping: the wet embryo is taken out and transferred to a hot pressing molding mold, and the wet embryo is pressure-dried and shaped on the hot pressing molding mold to form a semi-finished product; S4: film covering of semi-finished product: the semi-finished product is transferred to a film covering area, and a film is softened and covered on the semi-finished product, and the film covers the notch; S5: edge cutting and shaping: the semi-finished product with completed film covering is moved to an edge cutting area for edge cutting to form the paper pulp molded product facilitating paper-plastic separation. The preparation method is used to prepare the paper pulp molded product facilitating paper-plastic separation according to any one of claims 1-4, and the preparation method comprises the following steps: ​ ​ 9. A method for producing a pulp molded product facilitating separation of paper and plastic, characterized by, ​ ​ ​ ​ ​ ​ 10. A method for producing a pulp molded product facilitating separation of paper and plastic, characterized by, ​ S1: pulp preparation; S2: wet embryo preparation: the pulp enters the mold of a pulp plastic film forming device, vacuum suction pulp forming dehydration, forming a wet embryo; S3: drying and setting: the wet embryo is taken out and transferred to a hot pressing forming mold, the wet embryo is pressure dried and set on the hot pressing forming mold to form a semi-finished product; S4: cutting and notching: the semi-finished product is moved to a cutting area, and a cutting device is used to cut a notch on the semi-finished product; S5: semi-finished product film covering: the semi-finished product after cutting is transferred to a film covering area, a film is softened and covered on the semi-finished product, and the film is covered on the notch; S6: edge cutting and shaping: the semi-finished product after film covering is moved to an edge cutting area for edge cutting to form the pulp molded product facilitating paper-plastic separation.

Images