A planetary extruder with premixing function

Abstract

The present invention relates to the technical field of planetary extruder bodies, and discloses a planetary extruder with a premixing function, comprising a processing shaft body and a driving shaft body in the processing shaft body, the outer surface of the driving shaft body being provided with spiral blades, the interior of the processing shaft body being provided with, the outer side of the driving shaft body being provided with a reverse premixing structure, the reverse premixing structure comprising a supporting sleeve, an inner sleeve, a reverse stirring ring, a directional stirring ring, a first toggle piece, a second toggle piece, a directional inner shaft and a first supporting side plate, the outer side of the driving shaft body being rotatably connected to the supporting sleeve, and the outer side of the driving shaft body being also rotatably connected to the directional inner shaft. The second supporting ring of the present invention cooperates to achieve a two-way stirring effect on the internal particles, but at the same time the rotating shaft itself also has a rotating function, further increasing the mixing effect on the granular material, making the stirring effect of the granular material located inside more perfect, and being able to further increase the stirring efficiency and significantly shorten the stirring time.

Description

Technical Field

[0001] The invention relates to the technical field of planetary extruder bodies, in particular to a planetary extruder with a premixing function. Background Art

[0002] The planetary screw extruder is an extruder in which the spiral middle section of the screw or the entire screw is a planetary screw structure. When working, the central screw is the active screw, and there are multiple small-diameter screws on its outer circle that engage and rotate with it. These small-diameter screws can both rotate on their own and revolve around the central screw. This is because the outer periphery of the small screw is engaged with an outer jacket with spiral teeth. This jacket is also the barrel, which is fixed to the front and rear barrels with bolts. The screw thread cross-section is an involute tooth shape, and the spiral is a multi-start thread.

[0003] However, conventional extruders usually have an external feeding structure, and the feeding structure has a material stirring function. However, this stirring effect is poor, and it is difficult to achieve a uniform stirring effect of the device, resulting in uneven material quality after the device is hot-melted. Summary of the Invention

[0004] The present invention provides a planetary extruder with a premixing function, which has the beneficial effect of quickly purifying particulate matter in flue gas. It solves the problem that the conventional extruder mentioned in the above background technology is usually an external feeding structure, and the feeding structure has a material stirring function, but this stirring effect is poor, and it is difficult to achieve a uniform stirring effect of the device, resulting in uneven material quality after the device is hot-melted.

[0005] The present invention provides the following technical solution: a planetary extruder with a premixing function, comprising a processing shaft body and a driving shaft body in the processing shaft body, the outer surface of the driving shaft body being provided with spiral blades, the interior of the processing shaft body being provided with a mixing chamber, the outer side of the driving shaft body being provided with a reverse premixing structure, the reverse premixing structure comprising a supporting sleeve, an inner sleeve, a reverse stirring ring, a directional stirring ring, a first toggle piece, a second toggle piece, a directional inner shaft and a first supporting side plate, the outer side of the driving shaft body being rotatably connected to the supporting sleeve, the outer side of the driving shaft body being also rotatably connected to the directional inner shaft, the outer side of the supporting sleeve being provided with a reverse stirring ring, the outer side of the directional inner shaft being provided with a directional stirring ring, the inner wall of the reverse stirring ring being provided with a first toggle piece, the inner wall of the directional stirring ring being provided with a second toggle piece, the outer side of the supporting sleeve being also symmetrically provided with a first supporting side plate, the first supporting side plate being used to support the supporting sleeve to rotate at the axial center position of the processing shaft body, and the directional inner shaft and the driving shaft body being an integrated structure.

[0006] As an optional solution of the planetary extruder with premixing function described in the present invention, a reverse drive structure is installed inside the support sleeve, and the reverse drive structure includes a special-shaped linkage gear, a transmission gear ring and a force gear ring. One side of the inner sleeve is provided with a force gear ring located inside the support sleeve, and the outer side of the drive shaft is provided with a transmission gear ring located at the lower end of the support sleeve. A special-shaped linkage gear is installed inside the support sleeve, and the special-shaped linkage gear is used to transmit the torque of the drive shaft to the force gear ring.

[0007] As an optional solution of the planetary extruder with premixing function described in the present invention, wherein: the inner wall of the support sleeve is also installed with a support structure, the support structure includes a third bearing, a fourth bearing and a fifth bearing, the inner wall of the inner sleeve is installed with a third bearing, the inner wall of the support sleeve is installed with a fifth bearing, and the inner wall of the third bearing is also installed with a fourth bearing, and the support structure is used to support the inner sleeve and the support sleeve to rotate on the outside of the drive shaft.

[0008] As an optional solution of the planetary extruder with premixing function described in the present invention, one side of the directional inner shaft is also equipped with an outer stirring structure located outside the drive shaft body, and the outer stirring structure includes a first support ring, a second support ring, a spiral stirring ring and a fitting scraper. A fitting scraper is installed at one end of the first support ring, a second support ring is provided between the first support ring and the fitting scraper, and a spiral stirring ring is provided on the outside of the second support ring, and the spiral stirring ring is used to slide and fit on the inner wall of the mixing chamber.

[0009] As an optional solution of the planetary extruder with premixing function described in the present invention, one end of the contact scraper is also equipped with a material discharge structure located on the outside of the drive shaft body, and the material discharge structure includes a fixed sleeve, a conical spiral blade, a second supporting side plate, an outer ring sleeve and a first bearing. One end of the fixed sleeve is symmetrically provided with a second supporting side plate, the outer side of the fixed sleeve is provided with an outer ring sleeve, and the outer side of the outer ring sleeve is provided with a conical spiral blade. The first bearing is used to support the fixed sleeve to rotate on the outer surface of the drive shaft body.

[0010] As an optional solution of the planetary extruder with premixing function described in the present invention, the material discharge structure also includes a driven gear ring, a linkage gear ring, a driving gear ring and a second bearing. A linkage gear ring is installed at one end of the fixed sleeve, and a driven gear ring is provided on the inner wall of one end of the outer ring sleeve. The inner wall of the drive shaft is provided with a driving gear ring located below the driven gear ring. The driven gear ring is used to provide transmission power between the driven gear ring and the driving gear ring, and the second bearing is used to support the outer ring sleeve to rotate on the outer surface of the fixed sleeve.

[0011] As an optional solution of the planetary extruder with premixing function described in the present invention, wherein: an axial stirring structure is installed inside the fixed shaft sleeve, and the axial stirring structure includes a three-way shaft frame, a rotating shaft and a rotating spiral blade, a rotating spiral blade is installed at one end of the three-way shaft frame, and a rotating shaft is fixedly installed on the outer side of the rotating spiral blade, the second support ring rotates in the internal cavity of the mixing cavity, a stirring area is provided in the second support ring, and the rotating shaft is rotated in the stirring area.

[0012] As an optional solution of the planetary extruder with premixing function described in the present invention, the axial stirring structure also includes a mating gear, a driving gear, a linkage shaft and a driven special-shaped gear. One end of the rotating shaft is equipped with a mating gear located inside the three-way shaft frame, and a linkage shaft is installed inside the three-way shaft frame. Both ends of the driving gear are provided with driven special-shaped gears, and the lower end of the linkage shaft is provided with a driving gear located outside the driving shaft body. The driven special-shaped gear is used to engage with the mating gear and the driving gear tooth groove, and the linkage shaft is used to transmit the rotational force between the driving gear and the mating gear.

[0013] As an optional solution of the planetary extruder with premixing function described in the present invention, wherein: one end of the driving shaft is provided with an axial screw, the outer side of the axial screw is provided with an outer shaft in a ring array, the processing shaft, the inner wall of the processing shaft is installed with an insulating outer layer, the interior of the insulating outer layer is installed with a heating ring, and the insulating outer layer is used to block the temperature of the heating ring.

[0014] As an optional solution of the planetary extruder with premixing function described in the present invention, a feeder is provided on the upper surface of one end of the processing shaft, and a driving gear is provided on one end of the driving shaft.

[0015] The present invention has the following beneficial effects:

[0016] 1. The planetary extruder with a premixing function realizes a mixing, flipping and stirring effect on the granular material inside the reverse stirring ring through the cooperation of the reverse stirring ring and the directional stirring ring and the rotation of the reverse stirring ring. At the same time, through the toggling action of the first toggle piece, the reverse stirring ring drives the first toggle piece to move, so that the movement speed of the granular material close to the inner wall of the reverse stirring ring is greater than the movement speed of the granular material close to the axial position of the reverse stirring ring, thereby realizing a rotation speed difference and a mixing effect of the materials. Then, the directional stirring ring realizes the reverse rotation effect of the reverse stirring ring, further disrupting the granular material inside the reverse stirring ring and the directional stirring ring, making the mixing more uniform. At the same time, due to the action of the first toggle piece and the second toggle piece, while the reverse stirring ring and the directional stirring ring rotate, they also have a forward pushing effect of the material, so that the material can have the function of moving forward while mixing, thereby realizing the mixing and pushing effect of the material.

[0017] 2. The planetary extruder with premixing function realizes spiral stirring effect on the material through the second support ring, and at the same time transmits the power of the driving gear ring to the driven gear ring through the linkage gear ring, and drives the outer ring sleeve to rotate in the opposite direction, drives the rotating shaft to rotate close to the axis position, so that when the rotating shaft and the second support ring are located inside, they are in a reverse motion state, and further thoroughly mix the internal granular material, and realize the conveying effect of the material while stirring. One end is a conical structure, so that the flow rate at the outlet position is smaller than that at the inlet position, thereby increasing the traveling pressure of the subsequent granular material, thereby increasing the outlet pressure and outlet speed of the device.

[0018] 3. The planetary extruder with premixing function rotates around the axis position through the self-rotating shaft, and cooperates with the second support ring to achieve a two-way stirring effect on the internal particles. At the same time, the self-rotating shaft itself also has a rotation function, so that while it is located inside and rotates around the drive shaft, it can break up the material around the self-rotating shaft, further increasing the mixing effect of the granular material and increasing its stirring and mixing speed, making the material more uniform, making the stirring effect of the granular material located inside more perfect, and can further increase the stirring efficiency and significantly shorten the stirring time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0020] Figure 2 It is a schematic diagram of the overall cross-section structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the external structure of the drive shaft of the present invention.

[0022] Figure 4 This is a schematic diagram of the interior of the reverse premixing structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the drive shaft of the present invention.

[0024] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A.

[0025] Figure 7 Schematic diagram of the material discharge structure of the present invention.

[0026] Figure 8 This is a schematic diagram of the axial stirring structure of the present invention.

[0027] In the figure: 1. Processing shaft; 2. Driving shaft; 3. Reverse pre-mixing structure; 31. Support shaft sleeve; 32. Inner shaft sleeve; 33. Reverse stirring ring; 34. Directional stirring ring; 35. First paddle; 36. Second paddle; 37. Directional inner shaft; 38. First supporting side plate; 4. Outer stirring structure; 41. First supporting ring; 42. Second supporting ring; 43. Spiral stirring ring; 44. Fitting scraper; 5. Axial stirring structure; 51. Three-way shaft frame; 52. Rotating shaft; 53. Rotating spiral blade; 54. Matching gear; 55. Driving gear; 56. Linkage shaft; 57. Driven special-shaped gear; 6. Material discharge structure; 61. Fixed shaft sleeve; 62. Conical spiral blade; 63. Second supporting side plate; 64. Outer ring sleeve; 65. Driven gear ring; 66. Linkage gear ring; 67. Drive gear ring; 68. First bearing; 69. Second bearing; 7. Reverse drive structure; 71. Special-shaped linkage gear; 72. Transmission gear ring; 73. Forced gear ring; 8. Support structure; 81. Third bearing; 82. Fourth bearing; 83. Fifth bearing; 9. Spiral blade; 10. Drive gear; 11. Insulation outer layer; 12. Heating ring; 13. Axial screw; 14. Outer shaft; 15. Feeder; 16. Mixing chamber. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figures 1-8, one of the planetary extruders with premixing function includes a processing shaft body 1 and a driving shaft body 2 inside the processing shaft body 1, the outer surface of the driving shaft body 2 is provided with a spiral blade 9, the interior of the processing shaft body 1 is provided with a mixing cavity 16, the outer side of the driving shaft body 2 is installed with a reverse premixing structure 3, the reverse premixing structure 3 includes a supporting sleeve 31, an inner sleeve 32, a reverse stirring ring 33, a directional stirring ring 34, a first paddle piece 35, a second paddle piece 36, a directional inner shaft 37 and a first supporting side plate 38, the outer side of the driving shaft body 2 is rotatably connected to the supporting sleeve 31, an inner sleeve 32, a reverse stirring ring 33, a directional stirring ring 34, a first paddle piece 35, a second paddle piece 36, a directional inner shaft 37 and a first supporting side plate 38, The outer side of the shaft sleeve 31 and the driving shaft body 2 is also rotatably connected to the directional inner shaft 37. The outer side of the support shaft sleeve 31 is installed with a reverse stirring ring 33, and the outer side of the directional inner shaft 37 is installed with a directional stirring ring 34. The inner wall of the reverse stirring ring 33 is provided with a first paddle piece 35, and the inner wall of the directional stirring ring 34 is provided with a second paddle piece 36. The outer side of the support shaft sleeve 31 is also symmetrically provided with a first supporting side plate 38. The first supporting side plate 38 is used to support the support shaft sleeve 31 to rotate at the axis position of the processing shaft body 1. The directional inner shaft 37 and the driving shaft body 2 are an integrated structure;

[0031] A reverse drive structure 7 is installed inside the support sleeve 31. The reverse drive structure 7 includes a special-shaped linkage gear 71, a transmission gear ring 72 and a force-bearing gear ring 73. One side of the inner sleeve 32 is provided with a force-bearing gear ring 73 located inside the support sleeve 31. The outer side of the drive shaft body 2 is provided with a transmission gear ring 72 located at the lower end of the support sleeve 31. The special-shaped linkage gear 71 is installed inside the support sleeve 31. The special-shaped linkage gear 71 is used to transmit the torque of the drive shaft body 2 to the force-bearing gear ring 73;

[0032] The inner wall of the support sleeve 31 is also installed with a support structure 8, which includes a third bearing 81, a fourth bearing 82 and a fifth bearing 83. The inner wall of the inner sleeve 32 is installed with the third bearing 81, the inner wall of the support sleeve 31 is installed with the fifth bearing 83, and the inner wall of the third bearing 81 is also installed with the fourth bearing 82. The support structure 8 is used to support the inner sleeve 32 and the support sleeve 31 to rotate on the outside of the drive shaft 2.

[0033] The support sleeve 31 is fixed to one end of the mixing chamber 16 by the first support side plate 38, and the inner sleeve 32 is rotatably mounted on one end of the support sleeve 31. The support sleeve 31 is in a relatively stationary state. The directional inner shaft 37 is driven to rotate by the rotation of the drive shaft 2, and the directional inner shaft 37 drives the directional stirring ring 34 to rotate together. At the same time, the transmission gear ring 72 drives the special-shaped linkage gear 71 to rotate, and drives the force gear ring 73 to rotate, so that the reverse stirring ring 33 is in a state of rotation in the opposite direction of the rotation direction of the drive shaft 2. The directional stirring ring 34 and the drive shaft 2 are in a fixed state, and will rotate in the direction of rotation of the drive shaft 2, and cooperate with the reverse stirring ring 33 to form a bidirectional rotation state.

[0034] The granular material is fed into the reverse stirring ring 33 by the rotation of the spiral blade 9, and the granular material will completely fill the internal space of the reverse stirring ring 33. The rotation of the reverse stirring ring 33 drives the granular material to turn over inside the reverse stirring ring 33, and the particles will automatically fall down under the influence of gravity. When the reverse stirring ring 33 rotates, the granular material will be turned over and mixed, and the first paddle piece 35 can achieve a paddle effect on the granular material, and can achieve a paddle operation on the material close to the inner wall of the reverse stirring ring 33. The granular material close to the axis of the reverse stirring ring 33 moves at a slower speed than the material on the inner wall of the reverse stirring ring 33, thereby achieving a stirring effect on the internal material.

[0035] The inclined structure of the reverse stirring ring 33 allows the granular material to be pushed by the first paddle piece 35 while also pushing the material into the directional stirring ring 34, so that the reverse stirring ring 33 can flip the mixed material while also pushing the granular material forward, pushing it into the interior of the directional stirring ring 34 for reverse flipping operation, and the directional stirring ring 34 is the reverse movement of the reverse stirring ring 33. When the directional stirring ring 34 and the reverse stirring ring 33 rotate, the internal granular material will be disrupted to increase its mixing degree, and the second paddle piece 36 and the first paddle piece 35 are in reverse structure, so that the directional stirring ring 34 can send the granular material into the next stirring step while rotating in the opposite direction.

[0036] Example 2

[0037] This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figures 1-8 , an outer stirring structure 4 located outside the driving shaft body 2 is also installed on one side of the directional inner shaft 37, and the outer stirring structure 4 includes a first support ring 41, a second support ring 42, a spiral stirring ring 43 and a fitting scraper 44. A fitting scraper 44 is installed at one end of the first support ring 41, a second support ring 42 is provided between the first support ring 41 and the fitting scraper 44, and a spiral stirring ring 43 is provided on the outer side of the second support ring 42, and the spiral stirring ring 43 is used to slide and fit on the inner wall of the mixing chamber 16;

[0038] One end of the contact scraper 44 is also equipped with a material discharge structure 6 located on the outside of the drive shaft body 2. The material discharge structure 6 includes a fixed sleeve 61, a conical spiral leaf 62, a second supporting side plate 63, an outer ring sleeve 64 and a first bearing 68. One end of the fixed sleeve 61 is symmetrically provided with the second supporting side plate 63, the outer side of the fixed sleeve 61 is provided with an outer ring sleeve 64, and the outer side of the outer ring sleeve 64 is provided with a conical spiral leaf 62. The first bearing 68 is used to support the fixed sleeve 61 to rotate on the outer surface of the drive shaft body 2;

[0039] The material discharge structure 6 also includes a driven gear ring 65, a linkage gear ring 66, a driving gear ring 67 and a second bearing 69. The linkage gear ring 66 is installed at one end of the fixed sleeve 61, and the inner wall of one end of the outer ring sleeve 64 is provided with a driven gear ring 65. The inner wall of the drive shaft body 2 is provided with a driving gear ring 67 located below the driven gear ring 65. The driven gear ring 65 is used to provide transmission power between the driven gear ring 65 and the driving gear ring 67. The second bearing 69 is used to support the outer ring sleeve 64 to rotate on the outer surface of the fixed sleeve 61.

[0040] An axial stirring structure 5 is installed inside the fixed shaft sleeve 61, and the axial stirring structure 5 includes a three-way shaft frame 51, a rotating shaft 52 and a rotating spiral blade 53. The rotating spiral blade 53 is installed at one end of the three-way shaft frame 51, and the rotating shaft 52 is fixedly installed on the outside of the rotating spiral blade 53. The second support ring 42 rotates in the internal cavity of the mixing chamber 16. A stirring area is provided in the second support ring 42, and the rotating shaft 52 is rotatably set in the stirring area.

[0041] The first support ring 41 and the contact scraper 44 are driven to rotate by the driving shaft 2, and the second support ring 42 is provided inside the first support ring 41 and the contact scraper 44. When the second support ring 42 rotates, it can stir the material entering the mixing cavity 16, and through the action of the spiral stirring ring 43, the outer surface of the spiral stirring ring 43 is completely fitted with the inner wall of the mixing cavity 16. When the second support ring 42 is stirring, it can scrape off the material adhering to the inner wall of the mixing cavity 16, and when the second support ring 42 rotates, it drives the granular material inside the mixing cavity 16 to rotate as a whole, and the solid The fixed shaft sleeve 61 is fixed to the inner wall of the processing shaft body 1 through the second supporting side plate 63, so that the fixed shaft sleeve 61 is in a relatively fixed state. By driving the shaft body 2 to rotate, the power is output to the driven gear ring 65 through the linkage gear ring 66, and then drives the outer ring sleeve 64 to rotate, so that the outer ring sleeve 64 forms a reverse rotation effect of the driving shaft body 2, so that the rotation direction of the rotating shaft 52 and the second support ring 42 are opposite, further increasing the material mixing effect inside the device, and through the rotation effect of the conical spiral blade 62, the granular material can be sent out from the other end of the mixing cavity 16, completing the conveying and discharge function of the granular material.

[0042] Example 3

[0043] This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figures 1-8The axial stirring structure 5 also includes a mating gear 54, a driving gear 55, a linkage shaft 56 and a driven special-shaped gear 57. One end of the rotating shaft 52 is equipped with a mating gear 54 located inside the three-way shaft frame 51, and a linkage shaft 56 is installed inside the three-way shaft frame 51. Both ends of the driving gear 55 are provided with driven special-shaped gears 57. The lower end of the linkage shaft 56 is provided with a driving gear 55 located on the outside of the driving shaft body 2. The driven special-shaped gear 57 is used to engage with the mating gear 54 and the driving gear 55 tooth groove connection, and the linkage shaft 56 is used to transmit the rotational force of the driving gear 55 and the mating gear 54.

[0044] The rotation of the driving shaft 2 drives the driving gear 55 to rotate, and the driving gear 55 meshes with the driven special-shaped gear 57 to rotate the linkage shaft 56 at the same time, and drives the matching gear 54 to rotate. While the matching gear 54 rotates, it can provide rotational power support to the rotating shaft 52, so that the rotating shaft 52 can rotate inside the mixing chamber 16 while achieving its own rotation effect, and at the same time drive the rotating spiral blades 53 to rotate around the outer surface of the rotating shaft 52, so that when it rotates, it can break up the surrounding granular materials, so that the stirring effect of the granular materials inside the mixing chamber 16 is more perfect, and can further increase the stirring efficiency and greatly shorten the stirring time.

[0045] Example 4

[0046] This example is an explanation based on Example 3. For details, please refer to Figures 1-8 , one end of the driving shaft body 2 is provided with an axial screw 13, the outer side of the axial screw 13 is provided with an outer shaft 14 in a ring array, the processing shaft body 1, the inner wall of the processing shaft body 1 is installed with an insulating outer layer 11, and a heating ring 12 is installed inside the insulating outer layer 11. The insulating outer layer 11 is used to block the temperature of the heating ring 12;

[0047] A feeder 15 is provided on the upper surface of one end of the processing shaft body 1 , and a driving gear 10 is provided on one end of the driving shaft body 2 .

[0048] The rotation of the drive shaft 2 drives the spiral blade 9 to rotate, and drives the internal stirred granular material forward, and is heated by the heating ring 12 to form a semi-liquid state. The driving shaft 2 then drives the central screw 13 to rotate, so that the outer surface of the central screw 13 and the outer surface of the peripheral shaft 14 form a threaded engagement state, and the melted material is squeezed out, completing the heating and melting effect of the material.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A planetary extruder with a premixing function, comprising a processing shaft and a drive shaft within the processing shaft, wherein the outer surface of the drive shaft is provided with spiral blades, characterized in that: The outer side of the support sleeve is symmetrically provided with a first supporting side plate, and the first supporting side plate is used to support the support sleeve and the outer side of the support sleeve is symmetrically provided with a first supporting side plate, and the first supporting side plate is used to support the support sleeve to rotate at the axis center position of the processing shaft body, and the directional inner shaft and the driving shaft body are an integrated structure; A reverse driving structure is installed inside the supporting sleeve, and the reverse driving structure includes a special-shaped linkage gear, a transmission gear ring and a force gear ring. One side of the inner sleeve is provided with a force gear ring located in the supporting sleeve, and the outer side of the driving shaft is provided with a transmission gear ring located at the lower end of the supporting sleeve. A special-shaped linkage gear is installed inside the supporting sleeve, and the special-shaped linkage gear is used to transmit the torque of the driving shaft to the force gear ring. One side of the directional inner shaft is also provided with an outer stirring structure located outside the driving shaft. The outer stirring structure includes a first support ring, a second support ring, a spiral stirring ring and a fitting scraper. A fitting scraper is installed at one end of the first support ring, a second support ring is provided between the first support ring and the fitting scraper, and a spiral stirring ring is provided on the outer side of the second support ring. The spiral stirring ring is used to slide and fit on the inner wall of the mixing chamber; The inner wall of the support sleeve is also equipped with a supporting structure, and the supporting structure includes a third bearing, a fourth bearing and a fifth bearing. The inner wall of the inner sleeve is equipped with a third bearing, the inner wall of the support sleeve is equipped with a fifth bearing, and the inner wall of the third bearing is also equipped with a fourth bearing. The supporting structure is used to support the inner sleeve and the support sleeve to rotate on the outside of the drive shaft body. One end of the contact scraper is also equipped with a material discharge structure located outside the drive shaft body, and the material discharge structure includes a fixed sleeve, a conical spiral leaf, a second supporting side plate, an outer ring sleeve and a first bearing. One end of the fixed sleeve is symmetrically provided with a second supporting side plate, the outer sleeve of the fixed sleeve is provided with an outer ring sleeve, and the outer side of the outer ring sleeve is provided with a conical spiral leaf. The first bearing is used to support the fixed sleeve to rotate on the outer surface of the drive shaft body.

2. The planetary extruder with premixing function according to claim 1, characterized in that: The material discharge structure also includes a driven gear ring, a linkage gear ring, a driving gear ring and a second bearing. A linkage gear ring is installed at one end of the fixed sleeve, and a driven gear ring is provided on the inner wall of one end of the outer ring sleeve. The inner wall of the drive shaft is provided with a driving gear ring located below the driven gear ring. The driven gear ring is used to provide transmission power between the driven gear ring and the driving gear ring, and the second bearing is used to support the outer ring sleeve to rotate on the outer surface of the fixed sleeve.

3. The planetary extruder with premixing function according to claim 2, characterized in that: An axial stirring structure is installed inside the fixed shaft sleeve, and the axial stirring structure includes a three-way shaft frame, a rotating shaft and a rotating spiral blade. The rotating spiral blade is installed at one end of the three-way shaft frame, and the rotating shaft is fixedly installed on the outside of the rotating spiral blade. The second support ring rotates in the internal cavity of the mixing chamber. A stirring area is provided in the second support ring, and the rotating shaft is rotated in the stirring area.

4. The planetary extruder with premixing function according to claim 3, characterized in that: The axial stirring structure also includes a mating gear, a driving gear, a linkage shaft and a driven special-shaped gear. One end of the rotating shaft is equipped with a mating gear located inside the three-way shaft frame, and a linkage shaft is installed inside the three-way shaft frame. Both ends of the driving gear are provided with driven special-shaped gears, and the lower end of the linkage shaft is provided with a driving gear located outside the driving shaft body. The driven special-shaped gear is used to engage with the mating gear and the driving gear tooth groove, and the linkage shaft is used to transmit the rotational force between the driving gear and the mating gear.

5. The planetary extruder with premixing function according to claim 4, characterized in that: One end of the driving shaft is provided with an axial screw, and the outer side of the axial screw is provided with an outer shaft in a ring array. The processing shaft, the inner wall of the processing shaft is installed with an insulating outer layer, and a heating ring is installed inside the insulating outer layer. The insulating outer layer is used to block the temperature of the heating ring.

6. The planetary extruder with premixing function according to claim 5, characterized in that: A feeder is provided on the upper surface of one end of the processing shaft body, and a driving gear is provided on one end of the driving shaft body.

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