Degradable plastic master batch treatment device

Abstract

The invention relates to the technical field of environment-friendly materials, in particular to a degradable plastic master batch treatment device. The degradable plastic master batch treatment device comprises a base, and a fixing frame is arranged at the top of the base; the fixing shell is arranged on the lower portion of the inner side of the fixing frame. Plastic master batches are driven to move through the limiting shell, so that the plastic master batches make contact with the extrusion wheel to be subjected to extrusion deformation, pits not prone to making contact with the outside are generated, the surface area of the plastic master batches obtained after extrusion treatment is completed is increased, subsequent adhesion treatment is facilitated, and when different plastic master batches are extruded by the extrusion wheel, the surface area of the plastic master batches is increased. The plastic master batches can move towards the inner wall of the limiting shell, the plastic master batches of different specifications can be extruded to different degrees, and it is ensured that the plastic master batches of different specifications can form a proper volume-to-surface area ratio for subsequent adhesion treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of environmentally friendly materials, and in particular to a device for processing degradable plastic masterbatch. Background Art

[0002] Degradable plastic refers to plastic that degrades under natural conditions through the action of certain natural microorganisms such as bacteria, fungi and algae.

[0003] Traditional biodegradable plastics are usually made from natural biomass as the basic material. When producing biodegradable plastics, other raw materials are usually added to the plastic masterbatch or special treatment is performed. The processed plastic masterbatch is then sent into the machine together with other raw materials for melt processing to produce some biodegradable plastic products with other advantages.

[0004] Chinese patent number CN111100437B discloses a method for preparing a biodegradable plastic masterbatch containing nanocellulose. This method relates to the field of biodegradable plastic processing and preparation, specifically to a method for preparing a masterbatch of nanocellulose-composite biodegradable plastic. The method involves stirring and uniformly mixing biodegradable plastic particles with a plasticizer under heated conditions. A certain amount of nanocellulose dispersion obtained by mechanical or chemical treatment is then added. The mixture is then dried at room temperature or under heated conditions to produce a nanocellulose-containing masterbatch with a solids content of up to 99%. The resulting masterbatch has a reinforcing effect and can be added to biodegradable plastics such as polylactic acid and polybutylene adipate terephthalate to reduce the amount of biodegradable plastic particles used and lower production costs.

[0005] In the above patent, although a certain amount of polylactic acid particles can be processed to obtain polylactic acid masterbatch containing nanocellulose, and then the masterbatch is mixed with additives and ordinary polylactic acid particles and uniformly melted to obtain a low-cost plastic product, the actual processing process has certain defects. Since traditional polylactic acid particles are usually columnar particles with a relatively smooth surface, the dispersion has poor adhesion to the surface of the plastic masterbatch and is difficult to be enriched on the surface of the plastic masterbatch. In addition, the mutual collision of the plastic masterbatch also easily causes the dispersion to fall off after drying. In addition, the ratio of volume to surface area of ​​plastic masterbatch of different specifications is different, and it is difficult to achieve the effect of controlling the addition ratio of the dispersion by having the dispersion adhere to the surface of the plastic masterbatch.

[0006] Therefore, it is necessary to design a degradable plastic masterbatch processing device that can improve the surface adhesion of the masterbatch to solve the above problems. Summary of the Invention

[0007] In order to overcome the shortcomings of traditional plastic masterbatch that additives adhere to the surface of plastic masterbatch and it is difficult to control the proportion of additives added by attaching additives to the surface of plastic masterbatch, the technical problem of the present invention is to provide a degradable plastic masterbatch processing device.

[0008] Technical solution: A degradable plastic masterbatch processing device, comprising: a base and a fixed frame, a fixed frame is provided on the top of the base, a fixed shell is provided inside the fixed frame, an inlet hole is provided on the top of the fixed shell, an outlet is provided at the bottom of the fixed shell, a motor is provided at the bottom of the fixed shell, a rotating shaft is rotatably provided on the fixed shell, the rotating shaft is connected to the output shaft of the motor, an extrusion wheel is provided in the middle of the rotating shaft, the extrusion wheel is composed of a plurality of stacked extrusion sheets, a rotating ring is rotatably provided inside the fixed shell, a plurality of limit shells are provided inside the rotating ring (7), a gear is provided at the top of the rotating shaft, a connecting ring is connected to the outside of the rotating ring, a gear ring is provided inside the connecting ring, and the gear ring is meshed with the gear; a feeding component for automatically and accurately feeding the plastic masterbatch into the limit shell is provided at the top of the inner side of the fixed frame.

[0009] In a preferred embodiment of the present invention, the feeding assembly specifically includes: a conduit, a conduit is connected to the inlet hole, the inner upper part of the conduit is conical), a fixing plate is provided between the tops of the conduits, a feed ring is provided on the inner upper part of the connecting ring, and a conical channel is provided at the top of the feed ring directly above the limiting shell, the slope of the conical channel on the side close to the center of the feed ring is greater than the slope on the side away from the center of the feed ring, a limiting cover is provided on the inner upper part of the fixing frame, a conical shell is connected to the inner side of the feed ring, and the bottom of the conical shell is in equal-height contact with the top of the feed ring.

[0010] In a preferred embodiment of the present invention, it further includes: a fixing ring, wherein adjacent extrusion sheets of the extrusion wheel are coaxially connected with a fixing ring, a rubber ring is provided on the outside of the fixing ring, and a soft rubber ring is provided on the outside of the rubber ring; the diameter of the fixing ring is less than half of the diameter of the extrusion wheel; the diameter of the rubber ring is equal to the diameter of the extrusion wheel.

[0011] In a preferred embodiment of the present invention, it also includes: a limiting ring, a limiting ring is provided on the inner side of the fixed shell, the limiting ring is in a circular ring shape that undulates in a circumferential direction, a through hole is opened on one side of the conical channel, a top block is slidably provided in the through hole, a connecting ring is provided on one side of the top block, and the connecting ring is slidably connected to the limiting ring.

[0012] In a preferred embodiment of the present invention, it further comprises: a fixing tube, wherein the fixing plate is provided with a fixing tube penetrating therethrough, a tapered block is slidably provided in the fixing tube, and an elastic member is connected between the fixing tube and the tapered block.

[0013] In a preferred embodiment of the present invention, it further comprises: a mounting seat, an inner side wall of the limiting cover is provided with a mounting seat, a top plate is rotatably provided on the mounting seat, and a torsion spring is connected between the mounting seat and the top plate.

[0014] In a preferred embodiment of the present invention, it further comprises: a feed sleeve, a feed sleeve is placed on the top of the feed ring, and the feed sleeve only limits the position of the discharge port of the tapered channel.

[0015] In a preferred embodiment of the present invention, it further comprises: a gathering hopper, wherein the gathering hopper with an inclined bottom is provided at the outlet position of the bottom of the fixed shell.

[0016] In a preferred embodiment of the present invention, a plurality of small notches are evenly formed on the horizontal edge of the extrusion sheet of the extrusion wheel.

[0017] Compared with the prior art, the present invention has the following advantages: the present invention drives the plastic masterbatch to move through the limiting shell, so that the plastic masterbatch contacts the extrusion wheel and is extruded and deformed, the surface area of ​​the plastic masterbatch after the extrusion process is completed is increased, and a depression that is not easily contacted with the outside world is generated, which is convenient for subsequent adhesion processing, and different plastic masterbatches will move toward the inner wall of the limiting shell when being extruded by the extrusion wheel, and plastic masterbatches of different specifications will be extruded to different degrees, ensuring that plastic masterbatches of different specifications can form a suitable volume and surface area ratio for subsequent adhesion processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic cross-sectional view of a partial three-dimensional structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the gear, connecting ring and gear ring of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the extrusion wheel, rotating ring and limiting shell of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixed shell and the outlet of the present invention.

[0023] Figure 6 It is a partial three-dimensional structural diagram of the extrusion wheel, rotating ring and limiting shell of the present invention.

[0024] Figure 7 It is a partial three-dimensional structural schematic diagram of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the conduit, fixed plate and feed ring of the present invention.

[0026] Figure 9 It is a schematic cross-sectional view of the three-dimensional structure of the catheter of the present invention.

[0027] Figure 10 It is a schematic diagram of the three-dimensional structure of the extrusion wheel and the soft rubber ring of the present invention.

[0028] Figure 11 It is a schematic diagram of the three-dimensional structure of the fixing ring, rubber ring and soft rubber ring of the present invention.

[0029] Figure 12 It is a schematic diagram of the three-dimensional structure of the limiting ring, connecting rod and top block of the present invention.

[0030] Figure 13 It is an enlarged view of point A of the present invention.

[0031] Figure 14 It is a schematic diagram of the three-dimensional structure of the fixing plate, fixing tube and conical block of the present invention.

[0032] Figure 15 It is an enlarged view of point B of the present invention.

[0033] Figure 16 It is a schematic diagram of the three-dimensional structure of the mounting seat, top plate and torsion spring of the present invention.

[0034] Figure 17 It is a schematic diagram of the three-dimensional structure of the feed sleeve of the present invention.

[0035] Figure 18 This is the structural diagram of the degradable plastic masterbatch after processing.

[0036] Among them, the above drawings include the following figure marks: 1, base, 2, fixing frame, 3, fixing shell, 301, inlet hole, 302, outlet, 4, motor, 5, rotating shaft, 6, extrusion wheel, 7, rotating ring, 8, limiting shell, 9, gear, 10, connecting ring, 11, gear ring, 12, conduit, 13, fixing plate, 14, feed ring, 1401, conical channel, 15, limiting cover, 16, conical shell, 17, fixing ring, 18, rubber ring, 19, soft rubber ring, 20, limiting ring, 21, connecting rod, 22, top block, 23, through hole, 24, fixing tube, 25, conical block, 26, elastic part, 27, mounting seat, 28, top plate, 29, torsion spring, 30, feed sleeve, 31, hopper. DETAILED DESCRIPTION

[0037] Although the present invention may be described in relation to a particular application or industry, those skilled in the art will recognize a broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent a limitation on the scope of the present invention defined by the appended claims. Any numerical labels such as first or second are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0038] Example 1 As Figures 1 to 7 and Figure 18 shown, the present invention provides a degradable plastic masterbatch processing device, specifically including: a base 1, a fixing frame 2, a fixing shell 3, a motor 4, a rotating shaft 5, an extrusion wheel 6, a rotating ring 7, a limiting shell 8, a gear 9, a connecting ring 10 and a tooth ring 11; Among them, a fixing frame 2 is provided at the top of the base 1, a fixing shell 3 is provided at the lower part inside the fixing frame 2, the vertical section of the fixing shell 3 is in a "U" shape with the opening facing outwards, a plurality of inlet holes 301 are provided at the top of the fixing shell 3, an outlet 302 is opened at the bottom of the fixing shell 3, the horizontal positions of the inlet holes 301 and the outlet 302 are respectively located on the horizontal two sides of the fixing shell 3, and the plastic masterbatch enters the fixing shell 3 simultaneously from the plurality of inlet holes 301 at the top of the fixing shell 3 and leaves the fixing shell 3 from the outlet 302 after moving inside the fixing shell 3; Among them, a motor 4 is provided at the bottom of the fixing shell 3, a vertically oriented rotating shaft 5 is rotatably provided at the horizontal position between the inlet holes 301 and the outlet 302 on the fixing shell 3, the rotating shaft 5 penetrates through the upper and lower sides of the fixing shell 3, and an extrusion wheel 6 composed of a plurality of extrusion sheets stacked is provided at the middle position inside the fixing shell 3 of the rotating shaft 5. When the plastic masterbatch moves through the extrusion wheel 6 inside the fixing shell 3, the extrusion wheel 6 extrudes the plastic masterbatch to cause it to deform; Among them, a rotating ring 7 is rotatably provided outside the inside of the fixing shell 3, a plurality of semi-cylindrical limiting shells 8 are evenly spaced inside the rotating ring 7, adjacent limiting shells 8 are in contact with each other, and the distance between the limiting shell 8 and the vertical side wall of the inner wall of the fixing shell 3 is equal to the radius of the semi-cylindrical limiting shell 8, ensuring that when the limiting shell 8 drives the plastic masterbatch to move, the plastic masterbatch will not break away from the limiting shell 8. A gear 9 is provided at the position where the top end of the rotating shaft 5 penetrates through the fixing shell 3, a connecting ring 10 is connected to the outside of the rotating ring 7, and a tooth ring 11 is provided in the middle of the inner side of the connecting ring 10. The tooth ring 11 meshes with the gear 9 to realize the operation of the motor 4 to drive each part of the component; Among them, a feeding component for automatically and accurately feeding the plastic masterbatch into the limiting shell 8 is provided at the top inside the fixing frame 2.

[0039] Exemplarily, when in use, the motor 4 is started first, and the motor 4 drives the extrusion wheel 6 to rotate through the rotating shaft 5, and drives the connecting ring 10 to rotate through the gear 9 and the gear ring 11, and the connecting ring 10 drives the rotating ring 7 to rotate in the fixed shell 3, and at the same time, the plastic masterbatch is fed into the limiting shell 8 through the feeding assembly, and the semi-circular limiting shell 8 drives the columnar plastic masterbatch to rotate in the fixed shell 3, and finally the plastic masterbatch passes through the extrusion wheel 6, and the extrusion wheel 6 extrude and deforms the plastic masterbatch, and squeezes the side of the plastic masterbatch inward. After the extrusion is completed, the plastic masterbatch is then driven by the rotating ring 7 and the limiting shell 8 to move in the fixed shell 3 to just above the outlet 302 of the fixed shell 3, and the plastic masterbatch then falls from the outlet 302, and the motor 4 continues to drive the rotating ring 7 to rotate, and the rotating ring 7 continues to drive the plastic masterbatch to pass through the extrusion wheel 6 through the limiting shell 8 to complete the extrusion, so as to realize the processing of the plastic masterbatch, and the surface area of ​​the plastic masterbatch after the extrusion process is increased, which is convenient for subsequent adhesion processing; Since the reagent is directly adhered to the surface of the plastic masterbatch in the subsequent adhesion treatment, the ratio of volume to surface area of ​​plastic masterbatch of different specifications is different. In the above embodiment, when plastic masterbatch of different specifications is squeezed by the extrusion wheel 6, the plastic masterbatch will move toward the inner wall of the limiting shell 8 under the push of the extrusion wheel 6. Since the distance from the extrusion wheel 6 to the limiting shell 8 is fixed, the diameters of plastic masterbatch of different specifications are different. Ultimately, plastic masterbatch of different specifications will be squeezed to different degrees. When the plastic masterbatch contacts the extrusion wheel 6, it will be preferentially pushed to the inner side of the limiting shell 8. During extrusion, the smaller the diameter, the smaller the degree of depression squeezed out by the extrusion wheel 6. The larger the diameter of the plastic masterbatch, the greater the degree of contact with the extrusion wheel 6, and the larger the depression squeezed out. At the same time, the longer the plastic masterbatch, the more extrusion pieces on the extrusion wheel 6 will be in contact. This ensures that the plastic masterbatch can form a suitable volume to surface area ratio for the subsequent dispersion adhesion treatment, ensures that a sufficient amount of dispersion can be adhered to the plastic masterbatch, and ensures that the plastic masterbatch can carry the dispersion in accordance with its weight to perform the final melt molding step. At the same time, referring to Figure 18 The plastic masterbatch structure shown can make the dispersion adhere to the concave part, thus preventing the adhered dispersion from being scraped off due to collision of the plastic masterbatch.

[0040] Illustratively, in this embodiment, the extrusion structure formed by the inlet hole 301, the outlet 302, the extrusion wheel 6, the rotating shaft 5 and the gear 9 can be arranged in multiple groups in a centrally symmetrical manner within the fixed shell 3, and all the gears 9 are engaged with the gear ring 11. During operation, the motor drives the gear ring 11 and the connecting ring 10 to rotate through one of the rotating shafts 5 and the gear 9, and finally drives all the extrusion wheels to rotate in the same direction through each gear 9, thereby realizing the extrusion deformation operation of multiple plastic masterbatches at the same time, so as to improve production efficiency.

[0041] like Figures 7 to 9As shown, the feeding assembly specifically includes a guide tube 12, a fixing plate 13, a feeding ring 14, a limiting cover 15 and a conical shell 16; Among them, the inlet hole 301 at the top of the fixed shell 3 is connected to a conduit 12, the inner upper part of the conduit 12 is conical, and a fixed plate 13 is provided between the tops of the conduits 12. A feed ring 14 is provided on the inner upper part of the connecting ring 10, and the feed ring 14 is in sliding contact with the fixed plate 13. The top of the feed ring 14 is located directly above the limiting shell 8 and has a one-to-one corresponding conical channel 1401. The slope of the conical channel 1401 on the side close to the center of the feed ring 14 is greater than the slope on the side away from the center of the feed ring 14. A limiting cover 15 is provided on the inner upper part of the fixed frame 2, and the limiting cover 15 is in sliding contact with the feed ring 14. A conical shell 16 is connected to the inner side of the feed ring 14, and the bottom of the conical shell 16 is in equal-height contact with the top of the feed ring 14.

[0042] When adding plastic masterbatch, the plastic masterbatch is directly put into the conical shell 16 and the upper part of the feed ring 14 from the inlet at the top of the limit cover 15. The conical structure of the conical shell 16 ensures that the plastic masterbatch finally falls on the top of the feed ring 14. The plastic masterbatch adjusts its position state through the conical channel 1401 and enters the conduit 12. Then, it falls into the limit shell 8 through the conduit 12, and the feed ring 14 rotates with the rotating ring 7 through the connecting ring 10, so that the plastic masterbatch enters the conduit 12, and the conical shell 16 is connected to the conduit 12. When the channel 1401 is not docked with the conduit 12, it can be blocked and limited by the fixed plate 13. At the same time, the upper inner part of the conduit 12 is conical. When the feed ring 14 rotates, the plastic masterbatch maintained between the conduit 12 and the conical channel 1401 can be forced to return to the conical channel 1401 to avoid affecting the rotation of the feed ring 14. The conical channel 1401 is an asymmetric cone, and the side close to the center of the rotating ring 7 has a larger slope, which can better position the plastic masterbatch to enter the conduit 12.

[0043] Example 2 like Figure 10 and Figure 11 As shown, on the basis of Example 1, it specifically includes a fixed ring 17, a rubber ring 18 and a soft rubber ring 19. The adjacent extrusion sheets of the extrusion wheel 6 are coaxially connected with a fixed ring 17. The diameter of the fixed ring 17 is less than half the diameter of the extrusion wheel 6. A rubber ring 18 is provided on the outside of the fixed ring 17. A soft rubber ring 19 is provided on the outside of the rubber ring 18. The diameter of the rubber ring 18 is equal to the diameter of the extrusion wheel 6.

[0044] The soft rubber ring 19 between the adjacent extrusion pieces of the extrusion wheel 6 can limit the extrusion of the plastic masterbatch when the plastic masterbatch is extruded. The soft rubber ring 19 and the rubber ring 18 undergo a certain degree of horizontal concave deformation, and the soft rubber ring 19 is more easily deformed than the rubber ring 18, so that when the extrusion wheel 6 contacts the plastic masterbatch, the soft rubber ring 19 is deformed and tightly adheres to the plastic masterbatch. The rubber ring 18 provides pressure for the soft rubber ring 19 to extrude the plastic masterbatch, ensuring that the plastic masterbatch can accurately contact the extrusion wheel 6, and avoiding abnormal displacement of the plastic masterbatch after contacting the extrusion wheel 6 to affect the extrusion effect. In this embodiment, the radius width of the rubber ring 18 arranged on the outer ring of the fixed ring 17 is at least half of the radius of the extrusion wheel 6. Such specifications, by using some rubber materials with small elastic deformation, can enable the rubber ring 18 to produce sufficient deformation when extruding the plastic masterbatch and ensure stable extrusion of the plastic masterbatch, avoiding excessive extrusion causing deformation of the plastic masterbatch, or being too loose and unable to stably extrude the plastic masterbatch.

[0045] like Figure 2 、 Figure 12 and Figure 13 As shown, on the basis of Example 1, it also includes a limit ring 20, a top block 22 and a connecting rod 21. A limit ring 20 is provided on the inner side of the fixed shell 3. The limit ring 20 is in a circular ring shape that undulates in a circumferential direction. A through hole 23 is opened on the side of the conical channel 1401 of the feed ring 14 close to the center of the feed ring 14. A top block 22 is slidably provided in the through hole 23. The top block 22 is connected to a connecting ring 10 on the side close to the center of the feed ring 14. The end of the connecting ring 10 away from the top block 22 is slidably connected to the limit ring 20.

[0046] When the feed ring 14 rotates, the feed ring 14 can drive the top block 22 to rotate relative to the limit ring 20, and the top block 22 is connected to the limit ring 20 through the connecting ring 10, and the connecting ring 10 can control the top block 22 to move back and forth in the conical passage under the action of the wavy structure of the limit ring 20 along the circumferential direction. After the plastic masterbatch enters the conical channel 1401, the reciprocating top block 22 can continuously adjust the position of the plastic masterbatch in contact with it, ensuring that the plastic masterbatch can accurately enter the conduit 12.

[0047] like Figure 14 and Figure 15 As shown, on the basis of Example 1, it also includes a fixed tube 24, a conical block 25 and an elastic member 26. The position between the two adjacent conduits 12 on the fixed plate 13 is penetrated by a fixed tube 24, and the top of the fixed tube 24 is flush with the top of the fixed plate 13. A conical block 25 is slidably provided in the fixed tube 24, and the conical block 25 is in sliding contact with the feed ring 14. An elastic member 26 is connected between the fixed tube 24 and the conical block 25.

[0048] The conical block 25 in the fixed tube 24 is always in contact with the bottom of the feed ring 14. In the initial state, the conical block 25 is squeezed into the fixed tube 24 by the feed ring 14, and the elastic member 26 is compressed. When the feed ring 14 rotates so that the conical channel 1401 is facing the fixed tube 24, the conical block 25 extends into the conical channel 1401 under the action of the elastic member 26. The conical block 25 pushes the plastic masterbatch in the conical channel 1401, adjusts the position state of the plastic masterbatch, and ensures that the plastic masterbatch can accurately enter the conduit 12.

[0049] like Figure 2 and Figure 16 As shown, it also includes a mounting seat 27, a top plate 28 and a torsion spring 29. A vertical mounting seat 27 is provided on the inner wall of the limit cover 15, and a top plate 28 is rotatably provided on the mounting seat 27. The bottom of the top plate 28 is higher than the top of the feed ring 14, and a torsion spring 29 is connected between the mounting seat 27 and the top plate 28.

[0050] The top plate 28 on the mounting seat 27 can block the plastic masterbatch on the top of the feed ring 14 when the feed ring 14 rotates, ensuring that the plastic masterbatch can enter the conical channel 1401. At the same time, the top plate 28 is rotatably connected to the mounting seat 27, and the torsion spring 29 provides rotation resistance to avoid extrusion damage between the top plate 28 and the plastic masterbatch stuck on the feed ring 14.

[0051] like Figure 17 As shown, a feed sleeve 30 is also included. The feed sleeve 30 is placed on the top of the feed ring 14. The feed sleeve 30 only limits the position of the discharge port of the tapered channel 1401.

[0052] The feed sleeve 30 on the top of the feed ring 14 can ensure that the plastic masterbatch can enter the limiting shell 8 in a vertical state when the particle size of the plastic masterbatch is too small, and ensure that the normal extrusion of the plastic masterbatch by the top block 22 is not affected.

[0053] like Figure 1 and Figure 2 As shown, a hopper 31 is also included. The hopper 31 with an inclined bottom is provided at the outlet 302 at the bottom of the fixed shell 3.

[0054] The collecting hopper 31 can collect and discharge the plastic masterbatch discharged from the fixed shell 3 after extrusion.

[0055] like Figure 6 and Figure 10 As shown, the horizontal edges of the extrusion sheets of the extrusion wheel 6 are uniformly provided with a plurality of small notches.

[0056] The small notches on the horizontal edge of the extrusion sheet of the extrusion wheel 6 can prevent the plastic masterbatch from rotating relative to the extrusion wheel 6 and causing excessive extrusion of the plastic masterbatch when the plastic masterbatch is rotated and extruded, and the small notches can also produce a certain limiting effect when the extrusion wheel 6 contacts the plastic masterbatch.

[0057] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A degradable plastic masterbatch processing device, characterized in that: include: A base (1) and a fixed frame (2), wherein the top of the base (1) is provided with a fixed frame (2), the inside of the fixed frame (2) is provided with a fixed shell (3), the top of the fixed shell (3) is provided with an inlet hole (301), the bottom of the fixed shell (3) is provided with an outlet (302), the bottom of the fixed shell (3) is provided with a motor (4), a rotating shaft (5) is rotatably provided on the fixed shell (3), the rotating shaft (5) is connected to the output shaft of the motor (4), an extrusion wheel (6) is provided in the middle of the rotating shaft (5), the extrusion wheel is composed of a plurality of stacked extrusion sheets, a rotating ring (7) is rotatably provided inside the fixed shell (3), a plurality of limit shells (8) are provided on the inner side of the rotating ring (7), a gear (9) is provided on the top of the rotating shaft (5), a connecting ring (10) is connected to the outer side of the rotating ring (7), a gear ring (11) is provided on the inner side of the connecting ring (10), and the gear ring (11) is meshed with the gear (9); The top inner side of the fixing frame (2) is provided with a feeding component for automatically and accurately feeding the plastic masterbatch into the limiting shell (8).

2. A degradable plastic masterbatch processing device according to claim 1, characterized in that: The feeding assembly specifically comprises: A conduit (12) is connected to the inlet hole (301), the inner upper portion of the conduit (12) is conical), a fixing plate (13) is provided between the tops of the conduits (12), a feed ring (14) is provided on the inner upper portion of the connecting ring (10), a conical channel (1401) is provided on the top of the feed ring (14) just above the limiting shell (8), the slope of the conical channel (1401) on the side close to the center of the feed ring (14) is greater than the slope on the side away from the center of the feed ring (14), a limiting cover (15) is provided on the inner upper portion of the fixing frame (2), a conical shell (16) is connected to the inner side of the feed ring (14), and the bottom of the conical shell (16) is in contact with the top of the feed ring (14) at the same height.

3. A degradable plastic masterbatch processing device according to claim 2, characterized in that: include: A fixing ring (17), wherein adjacent extrusion sheets of the extrusion wheel (6) are coaxially connected with a fixing ring (17), a rubber ring (18) is provided on the outside of the fixing ring (17), and a soft rubber ring (19) is provided on the outside of the rubber ring (18); The diameter of the rubber ring (18) is equal to the diameter of the extrusion wheel (6).

4. A degradable plastic masterbatch processing device according to claim 3, characterized in that include: A limiting ring (20) is provided on the inner side of the fixed shell (3), and the limiting ring (20) is in the shape of a circular ring that is wavy and undulating along the circumferential direction. A through hole (23) is opened on one side of the tapered channel (1401), and a top block (22) is slidably provided in the through hole (23). A connecting ring (10) is provided on one side of the top block (22), and the connecting ring (10) is slidably connected to the limiting ring (20).

5. A degradable plastic masterbatch processing device according to claim 4, characterized in that: include: A fixed tube (24) is provided on the fixed plate (13) in a penetrating manner, a tapered block (25) is provided in a sliding manner in the fixed tube (24), and an elastic member (26) is connected between the fixed tube (24) and the tapered block (25).

6. A degradable plastic masterbatch processing device according to claim 5, characterized in that: include: A mounting seat (27) is provided on the inner side wall of the limiting cover (15), a top plate (28) is rotatably provided on the mounting seat (27), and a torsion spring (29) is connected between the mounting seat (27) and the top plate (28).

7. A degradable plastic masterbatch processing device according to claim 6, characterized in that: include: A feed sleeve (30) is placed on the top of the feed ring (14), and the feed sleeve (30) only limits the position of the discharge port of the tapered channel (1401).

8. A degradable plastic masterbatch processing device according to claim 7, characterized in that: include: A material collecting hopper (31) having an inclined bottom is provided at the outlet (302) at the bottom of the fixed shell (3).

9. A degradable plastic masterbatch processing device according to claim 8, characterized in that: The horizontal edges of the extrusion sheets of the extrusion wheel (6) are uniformly provided with a plurality of small notches.

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