Preparation process of a quick-degradable environment-friendly plastic film

Abstract

This invention relates to the field of plastic film preparation, and more specifically, to a process for preparing a rapidly degradable environmentally friendly plastic film. The process includes the following steps: Step 1: Melting a mixture of various rapidly degradable plastic raw materials; Step 2: Feeding the melted raw materials and forming them into a plastic film; Step 3: Winding the plastic film for continuous transport; Step 4: Attaching chain blocks to both ends of the transported plastic film to complete the preparation of the rapidly degradable environmentally friendly plastic film. Step 4 includes the following steps: S1: Laying the formed plastic film onto a grid plate; S2: Placing chain blocks on both sides of the plastic film; S3: Blowing the sides of the plastic film to cover the chain blocks; S4: Heating the plastic film to bond it to the chain blocks. This process can produce rapidly degradable environmentally friendly plastic films suitable for covering plant seedlings.

Description

Technical Field

[0001] This invention relates to the field of plastic film preparation, and more specifically to a process for preparing rapidly degradable and environmentally friendly plastic films. Background Technology

[0002] Plastic film is used for packaging and as a coating layer. It is widely used in the packaging industry, agriculture, medicine, chemical industry and other fields, which have brought great convenience to people's lives. In agricultural production, in order to ensure the growth temperature of plant seedlings, it is necessary to cover the seedlings with film. However, the existing plastic film used for covering requires pulling the two ends of the plastic film and then covering it with soil to fix the plastic film. The operation is complicated, and the current technology cannot produce an environmentally friendly plastic film that can be quickly degraded for covering plant seedlings. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a rapid degradation environmentally friendly plastic film preparation process, which can produce a rapid degradation environmentally friendly plastic film that is easy to use for covering plant seedlings.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A process for preparing a rapidly degradable, environmentally friendly plastic film, comprising the following steps:

[0006] Step 1: Melt multiple rapidly degradable plastic raw materials in a mixed state;

[0007] Step 2: After the molten raw material is fed into the blank, it is formed into a plastic film;

[0008] Step 3: Rewind the plastic film to achieve continuous transportation of the plastic film;

[0009] Step 4: Secure chain blocks to both ends of the transported plastic film to complete the preparation of the rapidly degradable environmentally friendly plastic film.

[0010] Furthermore, step four includes the following steps:

[0011] S1: Lay the formed plastic film onto the grid plate;

[0012] S2: Place chain blocks on both sides of the plastic film;

[0013] S3: Blow the plastic film to cover the chain blocks on both sides;

[0014] S4: Heat the plastic film to bond it to the chain block.

[0015] Furthermore, a mounting frame is fixedly connected to the grid plate, and inclined rollers with flat plastic film are rotatably mounted at both ends of the mounting frame.

[0016] Furthermore, the mounting frame is rotatably connected to two corresponding upper and lower pressure rollers for extruding plastic film, and the mounting frame is also rotatably connected to a limiting wheel for guiding the extruded plastic film. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 A process flow diagram for preparing plastic film;

[0019] Figure 2 This is a process diagram for fixing chain blocks to both ends of a plastic film.

[0020] Figure 3 This is a structural diagram of the plastic film and chain blocks;

[0021] Figure 4 This is a structural diagram of the chain block;

[0022] Figure 5 A structural diagram of the guiding plastic film;

[0023] Figure 6 A structural diagram of a unfolded plastic film;

[0024] Figure 7 A structural diagram showing the placement of the chain blocks;

[0025] Figure 8 A structural diagram showing the blowing action on the end of a plastic film;

[0026] Figure 9 A structural diagram of the heated plastic film and chain blocks;

[0027] Figure 10 A structural diagram showing the positional relationship between the blown end of the plastic film and the heated plastic film.

[0028] Figure 11 A schematic diagram of an apparatus for preparing plastic film. Detailed Implementation

[0029] refer to Figure 1 , 2 Sections 3 and 4 detail the process flow for preparing rapidly degradable environmentally friendly plastic films:

[0030] A process for preparing a rapidly degradable, environmentally friendly plastic film, comprising the following steps:

[0031] Step 1: Melt a mixture of various rapidly degradable plastic raw materials. Melting them into a fluid state allows for rapid and thorough mixing of the various raw materials, resulting in uniform dispersion and the production of more stable and environmentally friendly plastic films.

[0032] Step 2: After the melted raw material is fed into the plastic film 11, the initial processing of the rapidly degradable environmentally friendly plastic film is completed. Multiple straight fine holes are processed on the plastic film 11 to facilitate the cutting of the continuous plastic film 11. Currently, environmentally friendly plastic film is used for mulching when planting crops. The multiple fine holes processed can quickly cut the plastic film 11 while covering crops, and at the same time, it can enhance air circulation while keeping warm, so that plants can obtain more carbon dioxide for photosynthesis and ensure rapid plant growth.

[0033] Step 3: The plastic film 11 is wound up to achieve continuous transportation of the plastic film 11 and ensure continuous processing of the plastic film 11;

[0034] Step 4: Fix chain blocks 12 to both ends of the transported plastic film 11 to complete the preparation of the rapidly degradable environmentally friendly plastic film. When covering plants with the film, the plastic film 11 can be pulled by pulling the chain blocks 12 at both ends, preventing damage to the plastic film 11 caused by direct pulling. The plastic film 11 can also be fixed by burying soil on the chain blocks 12 at both ends. The chain blocks 12 are made of plastic, which facilitates the fixing of the plastic film 11 to the chain blocks 12. The chain blocks 12 are processed with multiple through holes. When fixing the plastic film 11 to the plants, wooden sticks made from tree branches can be used for fixing. Compared with covering with soil, the operation is more convenient and faster, which can reduce the need for soil and speed up the covering speed. The chain blocks 12 are processed with multiple slots, which can quickly cut the chain blocks 12.

[0035] In conjunction with the above embodiments, the following functions can also be achieved;

[0036] refer to Figure 2 The process of fixing and connecting the plastic film and the chain blocks is described in detail:

[0037] S1: The formed plastic film 11 is laid out on the grid plate 21 so that the plastic film 11 is fully unfolded, which facilitates the subsequent fixed connection of the chain block 12 and also prevents the plastic film 11 from stacking during winding. Under long-term storage, the plastic film 11 is easily damaged due to creases, which affects the use of the plastic film 11.

[0038] S2: Place chain blocks 12 on both sides of the plastic film 11 to allow for the fixed connection between the chain blocks 12 and the plastic film 11.

[0039] S3: Blow the plastic film 11 to cover the chain block 12 on both sides. First blow the two ends of the plastic film 11 upward, then blow the upward-floating ends of the plastic film 11 towards the middle to cover the chain block 12 at both ends.

[0040] S4: Heat the plastic film 11 to bond it to the chain block 12, so that the plastic film 11 is fixedly connected to the chain blocks 12 at both ends.

[0041] In conjunction with the above embodiments, the following functions can also be achieved;

[0042] refer to Figure 6 The following details the implementation process of laying out the plastic film:

[0043] A mounting frame 22 is fixedly connected to the grid plate 21. Slanted rollers 31 for laying out plastic film 11 are rotatably mounted at both ends of the mounting frame 22. The two slanted rollers 31 are respectively fixedly connected to the output shafts of two reduction motors I. The two reduction motors I are also fixedly connected to the mounting frame 22. The two slanted rollers 31 are inclined. The plastic film 11 being transported initially approaches the ends of the two slanted rollers 31, and after being laid out by the two slanted rollers 31, it moves away from the ends of the two slanted rollers 31. The ends of the two slanted rollers 31 at these points are now far apart. The two reduction motors I are then activated, causing the two slanted rollers 31 to rotate. As the two slanted rollers 31 rotate, both ends of the plastic film 11 are spread out, facilitating the subsequent placement of the chain block 12.

[0044] In conjunction with the above embodiments, the following functions can also be achieved;

[0045] refer to Figure 5 The following details the process of further spreading the extruded plastic film:

[0046] The mounting frame 22 is rotatably connected to two corresponding upper and lower pressure rollers 23 for extruding the plastic film 11. The two pressure rollers 23 are respectively fixedly connected to the output shafts of two reduction motors II. The two reduction motors II are fixedly connected to the mounting frame 22. When the two reduction motors II are started, they drive the two pressure rollers 23 to rotate. The two pressure rollers 23 rotate in opposite directions, extruding the formed plastic film 11 for transportation. The mounting frame 22 is rotatably connected to a limiting wheel 24 for guiding the extruded plastic film 11. After being extruded by the two pressure rollers 23, the plastic film 11 is laid flat on the grid plate 21 from the lower end of the limiting wheel 24 for flat laying and transportation.

[0047] In conjunction with the above embodiments, the following functions can also be achieved;

[0048] refer to Figure 6 and 7 The implementation process of placing the chain blocks is explained in detail:

[0049] Two corresponding outer plates 43 are fixedly connected to the mounting frame 22. A rotating shaft 42 is rotatably mounted on the two outer plates 43. A storage rack 41 for releasing the chain block 12 is fixedly connected to the rotating shaft 42. The rotating shaft 42 is fixedly connected to the output shaft of the reduction motor III. The reduction motor III is fixedly connected to one of the outer plates 43. When the reduction motor III is started, the reduction motor III drives the rotating shaft 42 to rotate. The rotating shaft 42 drives the two storage racks 41 to rotate. The two storage racks 41 rotate as the plastic film 11 is transported, releasing the chain block 12, in preparation for the fixed connection between the chain block 12 and the plastic film 11.

[0050] In conjunction with the above embodiments, the following functions can also be achieved;

[0051] refer to Figure 8 , 10 Sections 1 and 11 detail the implementation process of blowing the plastic film-coated chain blocks:

[0052] Both outer plates 43 are fixedly connected to extension plates 51, and each extension plate 51 is fixedly connected to multiple vertical pipes 52. The multiple vertical pipes 52 are fixedly connected and connected through connecting pipes 53. Each extension plate 51 is fixedly connected to multiple horizontal pipes 55, and the multiple horizontal pipes 55 are fixedly connected and connected to the corresponding connecting pipes 53 through bends 54. The two vertical pipes 52 near the two supports 61 are connected and connected to an external air supply device. The external air supply device provides airflow to the two vertical pipes 52, and the airflow from the multiple vertical pipes 52 through the connecting pipes 53 blows the plastic film 11 on both sides upward. First, the plastic film 11 reserved on the outside of the two chain blocks 12 is blown upward. Then, the gas flowing through the connecting pipes 53 to the multiple bends 54 flows out from the multiple horizontal pipes 55, blowing the upward plastic film 11 to the upper end of the chain block 12 to cover the chain block 12, preparing for the fixed connection between the plastic film 11 and the chain block 12.

[0053] In conjunction with the above embodiments, the following functions can also be achieved;

[0054] refer to Figure 9 , 10 Section 11 details the process of heating the plastic film to achieve a fixed connection between the plastic film and the chain block:

[0055] Each of the two extension plates 51 is fixedly connected to a bracket 61, and each bracket 61 is rotatably connected to two corresponding heating pipes 62. Each heating pipe 62 is fixedly connected to a heating wheel 63. Each heating pipe 62 is connected to an external heating device that provides high-temperature steam. High-temperature steam is provided to multiple heating pipes 62 through the external heating device. The high-temperature steam flows into multiple heating wheels 63. The chain blocks 12 on both sides pass through the middle of the two pairs of heating wheels 63 at both ends. The two pairs of heating wheels 63 heat the plastic film 11 and the chain blocks 12, so that the plastic film 11 and the chain blocks 12 are fixedly connected. This allows for the production of a rapidly degradable environmentally friendly plastic film that is easy to cover plant seedlings.

[0056] In conjunction with the above embodiments, the following functions can also be achieved;

[0057] refer to Figure 10 The following details the implementation process of using multiple heating rollers to roll and heat the plastic film:

[0058] Each of the multiple heating pipes 62 is fixedly connected to a reversing wheel 64, and the upper and lower corresponding reversing wheels 64 mesh with each other for transmission. Each of the multiple brackets 61 is rotatably connected to a drive wheel 65 that drives the lower reversing wheel 64 to rotate. The multiple drive wheels 65 are respectively fixedly connected to the output shaft of the reduction motor IV. The multiple reduction motors IV are respectively fixedly connected to the corresponding brackets 61. When the multiple reduction motors IV are started, the multiple reduction motors IV drive the multiple drive wheels 65 to rotate. The multiple drive wheels 65 drive the lower reversing wheel 64 to rotate. The lower reversing wheel 64 meshes with and drives the upper reversing wheel 64 to rotate, thereby realizing that the multiple reversing wheels 64 drive the multiple heating pipes 62 to rotate synchronously, thereby realizing that the multiple heating wheels 63 rotate and heat the plastic film 11 and the chain block 12 under rotation, realizing the fixed connection between the plastic film 11 and the chain block 12.

Claims

1. A process for preparing a rapidly degradable, environmentally friendly plastic film, characterized in that, The process includes the following steps: Step 1: Melt multiple rapidly degradable plastic raw materials in a mixed state; Step 2: After the melted raw material is fed into the plastic film, it is formed into a plastic film (11). Step 3: The plastic film (11) is wound up to achieve continuous transport of the plastic film (11); Step 4: Secure chain blocks (12) to both ends of the transported plastic film (11) to complete the preparation of the rapidly degradable environmentally friendly plastic film; Step four includes the following steps: S1: Lay the formed plastic film (11) on the grid plate (21); S2: Place chain blocks (12) on both sides of the plastic film (11). S3: Blow the plastic film (11) to cover the chain block (12) on both sides; S4: Heat the plastic film (11) to bond it to the chain block (12); A mounting frame (22) is fixedly connected to the grid plate (21), and inclined rollers (31) with flat plastic film (11) are rotatably mounted at both ends of the mounting frame (22). The mounting frame (22) is rotatably connected to two corresponding upper and lower pressure rollers (23) for extruding plastic film (11), and the mounting frame (22) is rotatably connected to a limiting wheel (24) for guiding the extruded plastic film (11). Two corresponding outer plates (43) are fixedly attached to the mounting frame (22). A rotating shaft (42) is rotatably mounted on the two outer plates (43). A storage rack (41) for the release chain block (12) is fixedly attached to the rotating shaft (42).

2. The rapid degradation environmentally friendly plastic film preparation process according to claim 1, characterized in that: Both outer plates (43) are fixedly connected to extension plates (51), and each extension plate (51) is fixedly connected to multiple risers (52). The multiple risers (52) are fixedly connected through connecting pipes (53). Each extension plate (51) is fixedly connected to multiple horizontal pipes (55), and the multiple horizontal pipes (55) are fixedly connected to the corresponding connecting pipes (53) through bends (54).

3. The rapid degradation environmentally friendly plastic film preparation process according to claim 2, characterized in that: Each of the two extension plates (51) is fixedly connected to a bracket (61), and each bracket (61) is rotatably connected to two corresponding heating pipes (62). Each heating pipe (62) is fixedly connected to a heating wheel (63), and each heating pipe (62) is connected to an external heating device that provides high-temperature steam.

4. The rapid degradation environmentally friendly plastic film preparation process according to claim 3, characterized in that: Each of the heating pipes (62) is fixedly connected with a directional wheel (64), and the upper and lower corresponding directional wheels (64) mesh with each other for transmission.

5. The rapid degradation environmentally friendly plastic film preparation process according to claim 4, characterized in that: Each of the brackets (61) is rotatably connected to a drive wheel (65) that drives the lower reversing wheel (64) to rotate.

6. The rapid degradation environmentally friendly plastic film preparation process according to claim 5, characterized in that: Two risers (52) near the two supports (61) are connected and communicated with an external air supply device that provides airflow.

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