Black master batch production equipment for biodegradable plastics

Abstract

The black master batch production equipment comprises a supporting base and further comprises a driving assembly, black master batch extrusion equipment is fixedly connected to the top of the supporting base, a storage box is fixedly connected to the right side of the top of the black master batch extrusion equipment, and the driving assembly comprises a supporting transverse plate; the supporting transverse plate is fixedly connected to the middle of the top of the storage box, a driving motor is fixedly connected to the middle of the top of the supporting transverse plate, and a rotating stirring shaft is fixedly connected to an output shaft of the driving motor. According to the device, after raw materials are partitioned by lifting, cutting and moving blades, a driving motor is controlled to work, the driving motor drives a rotary stirring shaft to rotate during working, and the partitioned raw materials are cut layer by layer by cutting blades, so that when the device is used, the fed raw materials can be crushed, and the raw materials are heated in cooperation with a storage box; and when the device treats raw materials, the melting rate is increased, and the working efficiency of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of black masterbatch production equipment technology, specifically to a black masterbatch production equipment for biodegradable plastics. Background Technology

[0002] Black masterbatch is the most commonly used and widely used type of masterbatch in plastic processing. It not only provides a black appearance to plastic products but also improves their weather resistance and aging resistance. The production of black masterbatch involves melting and stirring the raw materials, cooling and solidifying them, and then cutting them to produce black masterbatch.

[0003] Chinese patent application CN220534602U discloses a black masterbatch production device for biodegradable plastics. Although the application achieves the removal of dust generated by the mixture in the mixing tank, it cannot specifically address the viscous state of the raw materials when they are melted, resulting in a decrease in the production efficiency of black masterbatch. This problem needs to be addressed. Summary of the Invention

[0004] The purpose of this invention is to provide a black masterbatch production device for biodegradable plastics, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a black masterbatch production equipment for biodegradable plastics, including a support base and a drive assembly, wherein a black masterbatch extrusion device is fixedly connected to the top of the support base, and a storage box is fixedly connected to the top right side of the black masterbatch extrusion device.

[0006] The driving component includes: A support plate is fixedly connected to the top center of the storage tank. A drive motor is fixedly connected to the top center of the support plate. A rotating stirring shaft is fixedly connected to the output shaft of the drive motor. A discharge solenoid valve is installed near the bottom inside the storage tank. The drive motor can drive the rotating stirring shaft to rotate when it is working.

[0007] According to the above technical solution, it also includes a partition cutting component, which consists of an electric telescopic rod, a lifting drive circular plate, a movable lifting horizontal plate, a cutting blade, a rotating connecting shaft, a lifting cutting moving blade, and a fixing ring.

[0008] The electric telescopic rod is fixedly connected to the top of the rotating stirring shaft. The electric telescopic rod has a telescopic end. The lifting drive circular plate is fixedly connected to the telescopic end of the electric telescopic rod. The movable lifting horizontal plate is fixedly connected to the outside of the lifting drive circular plate. The cutting blade is fixedly connected to the outside of the movable lifting horizontal plate. The rotating connecting shaft is rotatably connected to the bottom of the lifting drive circular plate. The lifting cutting moving blade is fixedly connected to the bottom of the rotating connecting shaft. The fixing ring is fixedly connected to the bottom of the lifting cutting moving blade. The rotating connecting shaft, the lifting cutting moving blade, and the fixing ring can rotate at the bottom of the lifting drive circular plate. When the drive motor drives the rotating stirring shaft, the movable lifting horizontal plate, and the cutting blade to rotate, they will not synchronously drive the rotating connecting shaft, the lifting cutting moving blade, and the fixing ring to rotate.

[0009] According to the above technical solution, it also includes a stirring assembly, which consists of a receiving tank, a fixed extension plate, a spring, a rotating positioning frame, a driven moving plate, a driving extrusion frame, a connecting telescopic rod, a driven extrusion frame, a rotating stirring plate, and a wall scraping horizontal plate.

[0010] The storage slot is located in the middle left side of the movable lifting horizontal plate. The fixed extension plate is fixedly connected to the side of the movable lifting horizontal plate away from the lifting drive circular plate. The spring is fixedly connected inside the storage slot. The rotating positioning frame is fixedly connected to the top and bottom of the fixed extension plate. The driven moving plate is fixedly connected to the end of the spring away from the movable lifting horizontal plate. The driving extrusion frame is fixedly connected to the top and bottom of the driven moving plate. The connecting telescopic rod is rotatably connected to the middle of the driving extrusion frame. The driven extrusion frame is rotatably connected to the side of the connecting telescopic rod away from the driving extrusion frame. The rotating stirring plate is fixedly connected to the top of the driven extrusion frame. The wall scraping horizontal plate is fixedly connected to the side of the rotating stirring plate away from the driven extrusion frame. When the spring extends or retracts, the connected telescopic rod can be pushed by the driven moving plate and the driving extrusion frame, and the other side of the connecting telescopic rod can push the driven extrusion frame and the rotating stirring plate.

[0011] According to the above technical solution, the output shaft of the drive motor passes through the top of the support plate and extends to the bottom of the support plate, where it is fixedly connected to the top of the rotating stirring shaft. When the drive motor is working, it can drive the rotating stirring shaft to rotate.

[0012] According to the above technical solution, the lifting drive circular plate is provided with a lifting groove, and the lifting drive circular plate is slidably connected to the outer wall of the rotating stirring shaft through the lifting groove. The bottom of the rotating stirring shaft is provided with a circular groove to accommodate the lifting of the rotating connecting shaft. The bottom end of the rotating connecting shaft passes through the inner wall of the bottom of the rotating stirring shaft and extends to the bottom of the rotating stirring shaft and is fixedly connected to the top of the lifting cutting moving blade. When working, the electric telescopic rod can drive the lifting drive circular plate to lift and lower on the outer wall of the rotating stirring shaft.

[0013] According to the above technical solution, a rotating block is fixedly connected to the middle of the side of the rotating stirring plate away from the moving lifting horizontal plate. The rotating stirring plate can be rotatably connected to the middle of the rotating positioning frame through the rotating block, so that the rotating stirring plate can rotate in the middle of the rotating positioning frame.

[0014] According to the above technical solution, there are two of each of the rotating positioning frame, driving extrusion frame, connecting telescopic rod, driven extrusion frame, rotating stirring plate, and scraping horizontal plate. The two rotating positioning frames, driving extrusion frames, connecting telescopic rod, driven extrusion frame, rotating stirring plate, and scraping horizontal plate are symmetrically distributed on the top and bottom of the fixed extension plate. When the spring extends and retracts, it can drive the driven moving plate and driving extrusion frame to move, and simultaneously push the rotating stirring plate and scraping horizontal plate to open and close at the top and bottom of the fixed extension plate.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. When it is necessary to produce masterbatch from raw materials, the raw materials are put into the storage tank through the top of the storage tank. Activate the electric telescopic rod to make the lifting and cutting blades squeeze the raw materials in sections. This can divide the raw materials of a large volume into smaller pieces, and at the same time avoid the difficulty of melting due to the thickness of the raw materials during subsequent mixing and processing, thus ensuring work efficiency. 2. After the raw materials are divided into sections by the lifting and cutting blades, the drive motor is controlled to work, so that the drive motor drives the rotating stirring shaft to rotate and the cutting blades cut the sectioned raw materials layer by layer. This allows the device to crush the raw materials when in use. In conjunction with the storage tank to heat the raw materials, the melting rate of the raw materials is increased when the device processes the raw materials, thereby improving the working efficiency of the device. 3. When the raw material is melted and processed to a relatively viscous state, the rotating stirring plates at the top and bottom of the fixed extension plate are close to the upper and lower sides of the fixed extension plate, expanding the volume of the fixed extension plate. When the raw material comes into contact with the fixed extension plate, it can be pushed more stably, so that the device can stir the raw material when the viscosity is high. 4. As the storage tank melts the internal raw materials, the internal raw materials gradually change from a viscous state to a thin state. At this time, the rotating stirring plate opens and expands the longitudinal contact area between the fixed extension plate and the raw materials in the storage tank. At the same time, the thin state of the raw materials reduces the resistance when the moving lifting plate rotates, which can quickly stir the molten raw materials in the black masterbatch extrusion equipment. Meanwhile, the scraper on the rotating stirring plate can contact the inner wall of the storage tank, which can scrape off the raw materials adhering to the inner wall of the storage tank for remixing. 5. By controlling the operation of the electric telescopic rod, the positions of the moving lifting plate and the cutting blade can be adjusted. When the electric telescopic rod is working, it can be used to divide and cut raw materials of different depths. It can also adapt to the different stacking heights of raw materials. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the interior of the storage box of the present invention; Figure 3 This is a schematic diagram of the supporting horizontal plate of the present invention; Figure 4 This is a schematic diagram of the feeding solenoid valve of the present invention; Figure 5 This is a schematic diagram of the lifting and cutting moving blade of the present invention; Figure 6 This is a schematic diagram of an explosion at the electric telescopic pole of the present invention; Figure 7 This is a schematic diagram of the fixed extension plate of the present invention; Figure 8 This is a schematic diagram of the spring section of the present invention; Figure 9 This is a schematic diagram of the connecting telescopic rod of the present invention.

[0017] In the diagram: 1. Support base; 2. Black masterbatch extrusion equipment; 3. Storage tank; 4. Drive assembly; 401. Supporting horizontal plate; 402. Drive motor; 403. Rotary stirring shaft; 404. Feeding solenoid valve; 5. Partition cutting assembly; 501. Electric telescopic rod; 502. Lifting drive circular plate; 503. Moving lifting horizontal plate; 504. Cutting blade; 505. Rotating connecting shaft; 506. Lifting cutting moving blade; 507. Fixing ring; 6. Stirring assembly; 601. Collection tank; 602. Fixed extension plate; 603. Spring; 604. Rotating positioning frame; 605. Driven moving plate; 606. Drive extrusion frame; 607. Connecting telescopic rod; 608. Driven extrusion frame; 609. Rotating stirring plate; 610. Scraper horizontal plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0020] Example 1, please refer to Figure 1-4 The present invention provides a technical solution: a black masterbatch production equipment for biodegradable plastics, including a support base 1 and a drive assembly 4. A black masterbatch extrusion device 2 is fixedly connected to the top of the support base 1, and a storage box 3 is fixedly connected to the top right side of the black masterbatch extrusion device 2.

[0021] Among them, the driving component 4 includes: A support plate 401 is fixedly connected to the top center of the storage tank 3. A drive motor 402 is fixedly connected to the top center of the support plate 401. A rotating stirring shaft 403 is fixedly connected to the output shaft of the drive motor 402. A discharge solenoid valve 404 is provided near the bottom inside the storage tank 3. When the drive motor 402 is working, it can drive the rotating stirring shaft 403 to rotate.

[0022] The output shaft of the drive motor 402 passes through the top of the support plate 401 and extends to the bottom of the support plate 401 and is fixedly connected to the top of the rotating stirring shaft 403. When the drive motor 402 is working, it can drive the rotating stirring shaft 403 to rotate.

[0023] After the raw material is melted, stirred and mixed, the feeding solenoid valve 404 is controlled to operate, so that the raw material in the storage tank 3 enters the black masterbatch extrusion equipment 2, and the raw material is extruded to generate black masterbatch through the black masterbatch extrusion equipment 2.

[0024] The drive motor 402 is controlled to work, so that when the drive motor 402 works, it drives the rotating stirring shaft 403 to rotate, which can stir the raw materials in the storage tank 3 when the rotating stirring shaft 403 rotates. By setting the discharge solenoid valve 404, the raw materials in the storage tank 3 can be controlled to discharge and store.

[0025] Example 2, please refer to Figure 1-9 Based on Embodiment 1, the present invention provides a technical solution that further includes a partitioned cutting component 5, which consists of an electric telescopic rod 501, a lifting drive circular plate 502, a movable lifting horizontal plate 503, a cutting blade 504, a rotating connecting shaft 505, a lifting cutting moving blade 506, and a fixing ring 507.

[0026] The electric telescopic rod 501 is fixedly connected to the top of the rotating stirring shaft 403. The electric telescopic rod 501 has a telescopic end. The lifting drive circular plate 502 is fixedly connected to the telescopic end of the electric telescopic rod 501. The movable lifting horizontal plate 503 is fixedly connected to the outside of the lifting drive circular plate 502. The cutting blade 504 is fixedly connected to the outside of the movable lifting horizontal plate 503. The rotating connecting shaft 505 is rotatably connected to the bottom of the lifting drive circular plate 502. The lifting cutting moving blade 506 is fixedly connected to the bottom of the rotating connecting shaft 505. The fixing ring 507 is fixedly connected to the bottom of the lifting cutting moving blade 506. The rotating connecting shaft 505, the lifting cutting moving blade 506, and the fixing ring 507 can rotate at the bottom of the lifting drive circular plate 502. When the drive motor 402 drives the rotating stirring shaft 403, the movable lifting horizontal plate 503, and the cutting blade 504 to rotate, the rotating connecting shaft 505, the lifting cutting moving blade 506, and the fixing ring 507 will not rotate synchronously.

[0027] When it is necessary to produce masterbatch from raw materials, the raw materials are fed into the storage tank 3 through the top of the storage tank 3. The electric telescopic rod 501 is activated, causing the lifting and cutting moving blade 506 to squeeze the raw materials in sections. This can divide the raw materials of a large volume into smaller pieces, and at the same time avoid the difficulty in melting due to the thickness of the raw materials during subsequent mixing and processing, thus ensuring work efficiency.

[0028] After the raw materials are divided into sections by the lifting and cutting moving blade 506, the drive motor 402 is controlled to work, so that the drive motor 402 drives the rotating stirring shaft 403 to rotate, and the cutting blade 504 cuts the sectioned raw materials layer by layer, so that the device can crush the input raw materials when in use. In conjunction with the storage tank 3 to heat the raw materials, the melting rate of the raw materials is increased when the device processes the raw materials, thereby improving the working efficiency of the device.

[0029] By controlling the operation of the electric telescopic rod 501, the positions of the movable lifting plate 503 and the cutting blade 504 can be adjusted. When the electric telescopic rod 501 is working, it can be used to partition and cut materials of different depths. It can also adapt to different stacking heights of materials.

[0030] It also includes a stirring assembly 6, which consists of a receiving tank 601, a fixed extension plate 602, a spring 603, a rotating positioning frame 604, a driven moving plate 605, a driving extrusion frame 606, a connecting telescopic rod 607, a driven extrusion frame 608, a rotating stirring plate 609, and a wall scraping horizontal plate 610.

[0031] A storage slot 601 is located in the middle left side of the movable lifting horizontal plate 503. A fixed extension plate 602 is fixedly connected to the side of the movable lifting horizontal plate 503 away from the lifting drive circular plate 502. A spring 603 is fixedly connected inside the storage slot 601. A rotating positioning frame 604 is fixedly connected to the top and bottom of the fixed extension plate 602. A driven moving plate 605 is fixedly connected to the end of the spring 603 away from the movable lifting horizontal plate 503. A driving compression frame 606 is fixedly connected to the top and bottom of the driven moving plate 605. A connecting telescopic rod 607 is rotatably connected. In the middle of the drive extrusion frame 606, the driven extrusion frame 608 is rotatably connected to the connecting telescopic rod 607 on the side away from the drive extrusion frame 606. The rotating stirring plate 609 is fixedly connected to the top of the driven extrusion frame 608. The wall scraping plate 610 is fixedly connected to the rotating stirring plate 609 on the side away from the driven extrusion frame 608. When the spring 603 extends or retracts, it can push the connecting telescopic rod 607 through the driven moving plate 605 and the drive extrusion frame 606, and cause the other side of the connecting telescopic rod 607 to push the driven extrusion frame 608 and the rotating stirring plate 609.

[0032] The lifting drive circular plate 502 has a lifting groove inside. The lifting drive circular plate 502 is slidably connected to the outer wall of the rotating stirring shaft 403 through the lifting groove. The bottom of the rotating stirring shaft 403 has a circular groove in the middle to accommodate the lifting of the rotating connecting shaft 505. The bottom end of the rotating connecting shaft 505 passes through the bottom inner wall of the rotating stirring shaft 403 and extends to the bottom of the rotating stirring shaft 403 and is fixedly connected to the top of the lifting cutting moving blade 506. When working, the electric telescopic rod 501 can drive the lifting drive circular plate 502 to lift and lower on the outer wall of the rotating stirring shaft 403.

[0033] A rotating block is fixedly connected to the middle of the side of the rotating stirring plate 609 away from the moving lifting horizontal plate 503. The rotating stirring plate 609 can be rotatably connected to the middle of the rotating positioning frame 604 through the rotating block, so that the rotating stirring plate 609 can rotate in the middle of the rotating positioning frame 604.

[0034] When the raw material is melted and processed to a relatively viscous state, the rotating stirring plates 609 at the top and bottom of the fixed extension plate 602 are close to the upper and lower sides of the fixed extension plate 602, expanding the volume of the fixed extension plate 602. When the raw material comes into contact with the fixed extension plate 602, it can be pushed more stably, allowing the device to stir the raw material when the viscosity is high.

[0035] As the storage tank 3 melts the internal raw materials, the raw materials gradually change from a viscous state to a thin state. At this time, the rotating stirring plate 609 opens and expands the longitudinal contact area between the fixed extension plate 602 and the raw materials in the storage tank 3. At the same time, the thin state of the raw materials reduces the resistance when the moving lifting plate 503 rotates, which can quickly stir the molten raw materials in the black masterbatch extrusion equipment 2. Meanwhile, the wall scraping plate 610 on the rotating stirring plate 609 can contact the inner wall of the storage tank 3, which can scrape off the raw materials adhering to the inner wall of the storage tank 3 for remixing.

[0036] The number of rotating positioning frame 604, driving extrusion frame 606, connecting telescopic rod 607, driven extrusion frame 608, rotating stirring plate 609, and scraping horizontal plate 610 are all two. The two rotating positioning frames 604, driving extrusion frame 606, connecting telescopic rod 607, driven extrusion frame 608, rotating stirring plate 609, and scraping horizontal plate 610 are symmetrically distributed on the top and bottom of the fixed extension plate 602. When the spring 603 extends and retracts, it can drive the driven moving plate 605 and driving extrusion frame 606 to move, and simultaneously push the rotating stirring plate 609 and scraping horizontal plate 610 to open and close at the top and bottom of the fixed extension plate 602.

[0037] When raw materials are needed for masterbatch production, they are fed into storage tank 3 through the top. Storage tank 3 is then activated, heating the raw materials inside to soften them. The softened materials then fall and accumulate on top of the discharge solenoid valve 404. Next, the electric telescopic rod 501 inside the rotating stirring shaft 403 is activated. During operation, the electric telescopic rod 501 controls the lifting drive plate 502 to rise and fall outside the rotating stirring shaft 403. This causes the lifting drive plate 502 to move the moving lifting horizontal plate 503 downwards synchronously. Simultaneously, the downward movement of the lifting drive plate 502 also drives the rotating connection... Shaft 505 pushes the lifting cutting moving blade 506 and the fixed ring 507 downward, so that the lifting cutting moving blade 506 can squeeze the raw material in sections. Then, the drive motor 402 is controlled to work, so that the drive motor 402 drives the rotating stirring shaft 403 to rotate. At the same time, the rotating stirring shaft 403 drives the moving lifting horizontal plate 503 and the cutting blade 504 to rotate, and the cutting blade 504 cuts the sectioned raw material layer by layer. This allows the device to crush the input raw material during use. In conjunction with the storage tank 3 to heat the raw material, the melting rate of the raw material is increased when the device processes the raw material, thereby improving the working efficiency of the device.

[0038] When the raw material is melted and processed to a relatively viscous state, the overall rotation speed of the rotating stirring shaft 403 is low. At this time, the centrifugal force on the moving lifting plate 503 is small, making it difficult to throw the spring 603 out of the storage tank 601. At this time, the rotating stirring plates 609 at the top and bottom of the fixed extension plate 602 are close to the upper and lower sides of the fixed extension plate 602, expanding the volume of the fixed extension plate 602. When the rotating stirring shaft 403 rotates, the raw material can be pushed more stably when it contacts the fixed extension plate 602, so that the raw material in the storage tank 3 is stirred and moved, allowing the device to stir the raw material when the viscosity is high.

[0039] As the storage tank 3 melts the internal raw materials, the materials gradually change from a viscous state to a thinner state. At this time, the drive motor 402 drives the rotating stirring shaft 403 to rotate. This increases the centrifugal force on the movable lifting plate 503 outside the rotating stirring shaft 403, causing the spring 603 inside the receiving tank 601 to stretch under the centrifugal force. This causes the driven moving plate 605 to move synchronously, pushing the drive extrusion frame 606 during its movement. The drive extrusion frame 606 then experiences force and pushes the connecting telescopic rod 607, causing the driven extrusion frame 608 on the other side of the connecting telescopic rod 607 to experience force, thus... The moving extrusion frame 608 pushes the rotating stirring plate 609 outward. At this time, the rotating stirring plate 609 rotates inside the rotating positioning frame 604 and moves to the side away from the fixed extension plate 602, so that the rotating stirring plate 609 opens and expands the longitudinal contact area between the fixed extension plate 602 and the raw material in the storage box 3. The fixed extension plate 602 rotates with the rotating stirring shaft 403. At the same time, since the raw material in the black masterbatch extrusion equipment 2 is in a molten state, the rotational resistance of the moving lifting cross plate 503 on the rotating stirring shaft 403 is reduced, which can quickly stir the molten raw material in the black masterbatch extrusion equipment 2.

[0040] By controlling the operation of the electric telescopic rod 501, the electric telescopic rod 501 can drive the lifting drive plate 502, the moving lifting horizontal plate 503, the cutting blade 504, the rotating connecting shaft 505, the lifting cutting moving blade 506, and the fixing ring 507 to move down synchronously. This allows the device to adjust the position of the raw material when it is cut by the cutting blade 504. At the same time, as the electric telescopic rod 501 operates, the positions of the moving lifting horizontal plate 503 and the cutting blade 504 are adjusted, enabling the device to perform targeted pushing and stirring of raw materials at different depths during operation.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A black masterbatch production plant for biodegradable plastics comprising a support base (1) characterized by: It also includes a drive assembly (4), the support base (1) top fixedly connected with black masterbatch extrusion equipment (2), the black masterbatch extrusion equipment (2) top right side fixedly connected with storage box (3); Wherein, the drive assembly (4) includes: Supporting cross plate (401), supporting cross plate (401) is fixedly connected to the top middle of storage box (3), and the top middle of supporting cross plate (401) is fixedly connected with drive motor (402), the output shaft of drive motor (402) is fixedly connected with rotating stirring shaft (403), and the bottom of storage box (3) is provided with discharging electromagnetic valve (404), and drive motor (402) can drive rotating stirring shaft (403) to rotate when working.

2. The black masterbatch production apparatus for biodegradable plastics according to claim 1, characterized by: It also includes a partition cutting assembly (5), which is composed of an electric telescopic rod (501), a lifting drive circular plate (502), a moving lifting cross plate (503), a cutting blade (504), a rotating connecting shaft (505), a lifting cutting moving blade (506) and a fixed ring (507); The electric telescopic rod (501) is fixedly connected to the top of the rotating stirring shaft (403), the electric telescopic rod (501) has a telescopic end, the lifting drive circular plate (502) is fixedly connected to the telescopic end of the electric telescopic rod (501), the moving lifting cross plate (503) is fixedly connected to the outer side of the lifting drive circular plate (502), the cutting blade (504) is fixedly connected to the outer side of the moving lifting cross plate (503), the rotating connecting shaft (505) is rotatably connected to the bottom of the lifting drive circular plate (502), the lifting cutting moving blade (506) is fixedly connected to the bottom of the rotating connecting shaft (505), and the fixed ring (507) is fixedly connected to the bottom of the lifting cutting moving blade (506). The rotating connecting shaft (505), the lifting cutting moving blade (506) and the fixed ring (507) can rotate at the bottom of the lifting drive circular plate (502), and when the drive motor (402) drives the rotating stirring shaft (403), the moving lifting cross plate (503) and the cutting blade (504) rotate, the rotating connecting shaft (505), the lifting cutting moving blade (506) and the fixed ring (507) will not be driven to rotate synchronously.

3. The black masterbatch production apparatus for biodegradable plastics according to claim 2, characterized by: It also includes a stirring assembly (6), which is composed of a receiving groove (601), a fixed extension plate (602), a spring (603), a rotating positioning frame (604), a driven moving plate (605), a drive extrusion frame (606), a connecting telescopic rod (607), a driven extrusion frame (608), a rotating stirring plate (609) and a wall scraping plate (610); The accommodation groove (601) is arranged in the middle of the left side of the mobile lifting horizontal plate (503), the fixed extension plate (602) is fixedly connected to the side of the mobile lifting horizontal plate (503) away from the lifting driving circular plate (502), the spring (603) is fixedly connected to the inside of the accommodation groove (601), the rotating positioning frame (604) is fixedly connected to the top and bottom of the fixed extension plate (602), the driven moving plate (605) is fixedly connected to the end of the spring (603) away from the mobile lifting horizontal plate (503), the driving extrusion frame (606) is fixedly connected to the top and bottom of the driven moving plate (605), the connecting telescopic rod (607) is rotatably connected to the middle of the driving extrusion frame (606), the driven extrusion frame (608) is rotatably connected to the side of the connecting telescopic rod (607) away from the driving extrusion frame (606), the rotating stirring plate (609) is fixedly connected to the top of the driven extrusion frame (608), and the wall scraping horizontal plate (610) is fixedly connected to the side of the rotating stirring plate (609) away from the driven extrusion frame (608).

4. The black masterbatch production apparatus for biodegradable plastics according to claim 3, characterized by: The output shaft of the driving motor (402) penetrates through the top of the support horizontal plate (401) and extends below the support horizontal plate (401) and is fixedly connected to the top of the rotating stirring shaft (403), so that the rotating stirring shaft (403) can be driven to rotate when the driving motor (402) works.

5. The black masterbatch production apparatus for biodegradable plastics according to claim 4, characterized by: The lifting groove is arranged in the lifting driving circular plate (502), the lifting driving circular plate (502) is slidably connected with the outer wall of the rotating stirring shaft (403) through the lifting groove, the circular groove is arranged in the middle of the bottom of the rotating stirring shaft (403) and accommodates the lifting of the rotating connecting shaft (505), the bottom end of the rotating connecting shaft (505) penetrates through the inner wall of the bottom of the rotating stirring shaft (403) and extends below the rotating stirring shaft (403) and is fixedly connected to the top of the lifting cutting moving blade (506), and the electric telescopic rod (501) can drive the lifting driving circular plate (502) to lift on the outer wall of the rotating stirring shaft (403) when working.

6. The black masterbatch production apparatus for biodegradable plastics according to claim 5, characterized by: The rotating stirring plate (609) is fixedly connected with the rotating block in the middle of the side of the rotating stirring plate (609) away from the mobile lifting horizontal plate (503), the rotating stirring plate (609) is rotatably connected with the middle of the rotating positioning frame (604) through the rotating block, and the rotating stirring plate (609) can rotate in the middle of the rotating positioning frame (604).

7. The black masterbatch production plant for biodegradable plastics as claimed in claim 6 wherein: The rotating positioning frame (604), the driving extrusion frame (606), the connecting telescopic rod (607), the driven extrusion frame (608), the rotating stirring plate (609) and the wall scraping transverse plate (610) are two in number, and the two rotating positioning frames (604), the driving extrusion frame (606), the connecting telescopic rod (607), the driven extrusion frame (608), the rotating stirring plate (609) and the wall scraping transverse plate (610) are symmetrically distributed on the top and bottom of the fixed extension plate (602), and can drive the driven moving plate (605) and the driving extrusion frame (606) to move when the spring (603) is stretched or contracted, and synchronously push the rotating stirring plate (609) and the wall scraping transverse plate (610) to open and close on the top and bottom of the fixed extension plate (602).

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