A raw material heating injection molding device for carbon fiber material processing

Abstract

The application discloses a raw material heating injection molding device for carbon fiber material processing, belongs to the technical field of injection molding production, and is characterized in that a first screw rod is rotationally arranged in a barrel, a first motor for driving the first screw rod to rotate is arranged outside the barrel, a feeding pipe is further arranged on the barrel, two hoppers are arranged on the feeding pipe, a guide pipe is arranged between the hopper and the feeding pipe, a mixing mechanism is arranged at an end of the first screw rod away from the first motor, and the mixing mechanism is installed at the end of the barrel. The mixing mechanism is arranged in the barrel, so that the carbon fiber material and the plastic raw material in a molten state are respectively pushed into the first flow guide cavity and the second flow guide cavity under the pushing action of the screw convex edges of the second screw rod and the fixed sleeve, are uniformly mixed in the annular mixing groove, the carbon fiber material can be uniformly dispersed into the plastic raw material, and the performance of a plastic part after forming is improved.

Description

Technical Field

[0001] This invention discloses a raw material heating injection molding device for carbon fiber material processing, belonging to the field of injection molding production technology. Background Technology

[0002] Carbon fiber is a fibrous microcrystalline graphite material with a high carbon content. Compared with ordinary materials, carbon fiber has advantages such as corrosion resistance, high temperature resistance, fatigue resistance, high strength, high modulus, electrical conductivity, and high dimensional stability. It is currently widely used in aerospace, transportation, sports and leisure, and other fields. However, due to its fibrous nature, carbon fiber cannot be used directly. In most cases, it is combined with matrices such as ceramics, metals, and resins to form composite materials, which are then processed and molded into the required structures for use. To incorporate carbon fiber into plastics, the common method is to mix the carbon fiber material and plastic raw materials and then add them to the injection molding machine. During the heating process, the plastic raw materials are molten, and the carbon fiber material is mixed into them. However, when the carbon fiber material and plastic raw materials are mixed before injection molding, both are solids. Even if they are thoroughly mixed in a mixing device, it is difficult to achieve uniform mixing. Furthermore, existing injection molding machines cannot perform secondary mixing of carbon fiber material and plastic raw materials during screw injection, and the mixing ratio of carbon fiber material and plastic raw materials cannot be adjusted in real time according to actual needs. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art and to provide a raw material heating injection molding device for carbon fiber material processing.

[0004] This invention achieves the above-mentioned objective through the following technical solution: a heating injection molding device for raw materials in carbon fiber material processing, comprising a barrel, a first screw rotatably disposed inside the barrel, and a first motor driving the first screw to rotate disposed outside the barrel. The barrel also has a feed pipe with two hoppers, and a guide pipe between the hoppers and the feed pipe. A mixing mechanism is disposed at the end of the first screw away from the first motor, and the mixing mechanism is installed at the end of the barrel. The mixing mechanism includes an injection nozzle sleeve, a mixing sleeve, a second screw, and a fixing sleeve. The injection nozzle sleeve is fixedly connected to the barrel by bolts. A pin connects the mixing sleeve to the barrel to restrict the rotational freedom of the mixing sleeve. An annular mixing groove is disposed at one end of the mixing sleeve near the injection nozzle sleeve, and a partition column is disposed at the other end. The partition column contains... The device has a first flow guiding cavity, and the diameter of the partition column is smaller than the inner diameter of the barrel. One end of the fixed sleeve is rotatably installed on the outside of the partition column, and a second flow guiding cavity is formed between the fixed sleeve and the barrel. The partition column is provided with multiple arrayed first flow guiding holes and second flow guiding holes on both sides of the annular mixing tank. One end of the first flow guiding hole is connected to the annular mixing tank, and the other end is connected to the first flow guiding cavity. One end of the second flow guiding hole is connected to the annular mixing tank, and the other end is connected to the second flow guiding cavity. The fixed sleeve is provided with an installation cavity, and the fixed sleeve is provided with a limiting part for insertion with the first screw. The second screw is located in the installation cavity, and one end of the second screw extends into the flow guiding cavity, and the other end is connected to the fixed sleeve by a bolt. The outside of the fixed sleeve is also provided with a pushing spiral protrusion, and the outside of the barrel is provided with a heating component.

[0005] Preferably, the fixed sleeve is provided with multiple through grooves for allowing fluid to enter the first guide cavity, the barrel is provided with a positioning platform, and the outer side of the fixed sleeve is provided with two arc-shaped blocks with a hollow gap between the two arc-shaped blocks for allowing fluid to enter the second guide cavity.

[0006] Preferably, both the first and second guide holes are oblique hole structures, the mixing sleeve is provided with a first guide cone at the first guide cavity, and the mixing sleeve is provided with a guide cone groove at the second guide cavity.

[0007] Preferably, a tapered guide hole is provided on the side of the injection nozzle sleeve near the mixing sleeve, and a plurality of arrayed spiral guide strips are provided on the inner wall of the tapered guide hole. The cross-section of the spiral guide strips is semi-circular, and a second guide cone is provided on the mixing sleeve at the location corresponding to the tapered guide hole.

[0008] Preferably, the injection nozzle sleeve is provided with an annular protrusion, the two sides of the annular protrusion are conical surfaces, and the mixing sleeve is provided with a groove that mates with the annular protrusion.

[0009] Preferably, the feed tube is provided with a switch for controlling the feeding speed. The switch includes a first feeding roller, a second feeding roller, a second motor, pulleys, and a belt. The first and second feeding rollers are rotatably mounted in the two feed tubes via a rotating shaft. The feed tubes have a rectangular cross-section. The diameters of the first and second feeding rollers are equal to the width of the feed tubes. The first and second feeding rollers are provided with multiple material collection grooves. The second motor is mounted on the feed tubes, and its output shaft is fixedly connected to the first feeding roller. There are two pulleys, which are fixed on the rotating shaft. The belt is sleeved on the outside of the two pulleys.

[0010] Preferably, the guide tube is provided with an installation part on the outer side of the second feeding roller, one end of the second feeding roller extends into the installation part, and a claw-shaped part is provided in the installation part. The claw-shaped part includes a fixed part and a sliding part. The number of sliding parts is the same as that of the material collection trough, and the two are slidably arranged. A spring is provided between the fixed part and the second feeding roller, one end of the spring extends into the inner side of the second feeding roller. A cover plate is installed on the installation part by bolts, and an adjusting bolt is threadedly connected to the cover plate. One end of the adjusting bolt abuts against the fixed part.

[0011] Preferably, a funnel-shaped material collection hood is provided below the feed pipe corresponding to the two guide pipes.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By setting up a barrel, heating components, a first screw, and a mixing mechanism, carbon fiber material and molten plastic raw material are pushed into the first and second guide cavities respectively by the pushing spiral protrusions on the second screw and the fixed sleeve, and mixed evenly in the annular mixing tank. This allows the carbon fiber material to be evenly dispersed into the plastic raw material, thereby improving the performance of the molded plastic parts.

[0014] 2. By setting a switch inside the feed tube, plastic raw materials and carbon fiber materials are placed into two hoppers respectively. The second motor drives the first and second feed rollers to rotate synchronously, which can control the feeding speed of both materials. Furthermore, by rotating the adjusting bolt, the feeding amount of plastic raw materials or carbon fiber materials can be controlled, thereby controlling the mixing ratio of the two. The operation is simple, and there is no need to prepare the materials in advance or put them into the mixing device for mixing, making it more convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a raw material heating injection molding device for carbon fiber material processing according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of a raw material heating injection molding device for carbon fiber material processing according to the present invention;

[0017] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the injection nozzle sleeve in this invention;

[0019] Figure 5 This is a schematic diagram of the hybrid sleeve in this invention;

[0020] Figure 6 This is a schematic diagram of the structure of the fixed sleeve in this invention;

[0021] Figure 7 This is a schematic diagram of the structure of the fixed sleeve and the second screw in this invention;

[0022] Figure 8 This is a schematic diagram of the transmission structure of the first and second feeding rollers in this invention;

[0023] Figure 9 This is a partial structural diagram of the guide tube, the second feeding roller, and the mounting part in this invention.

[0024] Reference numerals: 1. Mixing mechanism; 2. Heating assembly; 3. Barrel; 4. First motor; 5. Guide pipe; 6. Mounting part; 7. Feed pipe; 8. Hopper; 9. Second motor; 10. Injection nozzle sleeve; 11. Mixing sleeve; 12. First guide cavity; 13. Second screw; 14. Fixing sleeve; 15. First screw; 16. Collection hood; 17. Second discharge roller; 18. Sliding part; 19. First discharge roller; 20. Positioning platform; 21. Fixing part; 22. Second guide cavity; 23. Annular mixing tank; 24. 25. First guide cone; 26. Second guide hole; 27. Guide cone groove; 28. Annular convex ridge; 29. ​​Conical guide hole; 30. Spiral guide strip; 31. Second guide cone; 32. Separator column; 33. Groove; 34. Arc block; 35. Through groove; 36. Hollowed-out gap; 37. Limiting part; 38. Pushing spiral convex ridge; 39. Mounting cavity; 40. Collection trough; 41. Pulley; 42. Belt; 43. Spring; 44. Claw-shaped part; 45. Adjusting bolt; 46. Rotating shaft; 47. Cover plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1-9 As shown, a heating injection molding device for carbon fiber material processing includes a barrel 3. A first screw 15 is rotatably mounted inside the barrel 3, and a first motor 4 is mounted on the outside of the barrel 3 to drive the first screw 15 to rotate. A feed pipe 7 is also mounted on the barrel 3, with two hoppers 8 on the feed pipe 7. A guide pipe 5 connects the hoppers 8 to the feed pipe 7. A mixing mechanism 1 is mounted at the end of the first screw 15 away from the first motor 4. The mixing mechanism 1 is installed at the end of the barrel 3 and includes an injection nozzle sleeve 10, a mixing sleeve 11, a second screw 13, and a fixing sleeve 14. The injection nozzle sleeve 10 is fixedly connected to the barrel 3 by bolts. A pin connects the mixing sleeve 11 to the barrel 3 to restrict the rotational freedom of the mixing sleeve 11. An annular mixing groove 23 is provided at one end of the mixing sleeve 11 near the injection nozzle sleeve 10, and a partition column 32 is provided at the other end. A first guide cavity 12 is provided inside the partition column 32. The diameter of the fixed sleeve 14 is smaller than the inner diameter of the barrel 3. One end of the fixed sleeve 14 is rotatably installed on the outside of the partition column 32, and a second guide cavity 22 is formed between the fixed sleeve 14 and the barrel 3. The partition column 32 is provided with multiple arrayed first guide holes 25 and second guide holes 26 on both sides of the annular mixing tank 23. One end of the first guide hole 25 is connected to the annular mixing tank 23 and the other end is connected to the first guide cavity 12. One end of the second guide hole 26 is connected to the annular mixing tank 23 and the other end is connected to the second guide cavity 22. The fixed sleeve 14 is provided with an installation cavity 39, and the fixed sleeve 14 is provided with a limiting part 37 that is inserted into the first screw 15. The second screw 13 is located in the installation cavity 39, and one end of the second screw 13 extends into the guide cavity, and the other end is connected to the fixed sleeve 14 by a bolt. The outer side of the fixed sleeve 14 is also provided with a pushing spiral protrusion 38, and the outer side of the barrel 3 is provided with a heating component 2.

[0027] like Figure 2 and Figure 6 As shown, the fixed sleeve 14 is provided with multiple through grooves 35, which are used to allow fluid to enter the first guide cavity 12. The barrel 3 is provided with a positioning platform 20. Two arc-shaped blocks 34 are provided on the outer side of the fixed sleeve 14. There is a hollow gap 36 between the two arc-shaped blocks 34, which is used to allow fluid to enter the second guide cavity 22. The arc-shaped blocks 34 can prevent the fixed sleeve 14 from moving towards the mixing sleeve 11. In this way, when assembling the first screw 15, the limiting part 37 can be smoothly inserted into the first screw 15. When the first motor 4 drives the first screw 15 to rotate, the second screw 13 and the fixed sleeve 14 can rotate synchronously. When the first screw 15 generates thrust on the molten plastic material, the plastic material and carbon fiber material can smoothly enter the first guide cavity 12 and the second guide cavity 22 through the through grooves 35 and the hollow gap 36, thus preparing for the subsequent mixing of the two.

[0028] like Figure 2 , Figure 3 and Figure 5 As shown, both the first guide hole 25 and the second guide hole 26 are inclined hole structures. The mixing sleeve 11 is provided with a first guide cone 24 corresponding to the first guide cavity 12, and the mixing sleeve 11 is provided with a guide cone groove 27 corresponding to the second guide cavity 22. The first guide cone 24 and the guide cone groove 27 allow the molten plastic raw material to pass smoothly through the first guide hole 25 and the second guide hole 26, which can reduce the resistance of fluid flow. In addition, the first guide hole 25 and the second guide hole 26 are inclined, which further reduces the flow resistance and makes the two fluids produce a longer countercurrent effect. Multiple first guide holes 25 and second guide holes 26 are provided in the same row, which can greatly improve the mixing effect of plastic raw material and carbon fiber material. In addition, the plastic raw material has a certain viscosity in the molten state, which can make the carbon fiber material disperse better during countercurrent mixing, and the two are mixed more evenly.

[0029] like Figure 2 , Figure 4 and Figure 5 As shown, a conical guide hole 29 is provided on the side of the injection nozzle sleeve 10 near the mixing sleeve 11. Several arrayed spiral guide strips 30 are provided on the inner wall of the conical guide hole 29. The spiral guide strips 30 have a semi-circular cross-section. A second guide cone 31 is provided on the mixing sleeve 11 corresponding to the conical guide hole 29. When the carbon fiber material and the molten plastic raw material enter the conical guide hole 29 and the second guide cone 31 after mixing, a part of the fluid raw material will be guided by the spiral guide strips 30 and will generate a spiral dispersion effect on the outside of the other part of the fluid raw material. This can further improve the mixing effect of carbon fiber material and plastic raw material. The gap between the second guide cone 31 and the conical guide hole 29 is small, which can increase the extrusion injection pressure.

[0030] like Figure 2 , Figure 4 and Figure 5 The injection nozzle sleeve 10 is provided with an annular protrusion 28, and the two sides of the annular protrusion 28 are conical surfaces. The mixing sleeve 11 is provided with a groove 33 that mates with the annular protrusion 28. By providing the annular protrusion 28 and the groove 33, the sealing between the injection nozzle sleeve 10 and the barrel 3 can be guaranteed, and the molten plastic material can be prevented from seeping out between the two due to excessive injection pressure.

[0031] like Figure 1 , Figure 2 , Figure 8 and Figure 9As shown, a switching device for controlling the feeding speed is provided inside the feed tube 5. The switching device includes a first feeding roller 19, a second feeding roller 17, a second motor 9, a pulley 41, and a belt 42. The first feeding roller 19 and the second feeding roller 17 are rotatably mounted inside the two feed tubes 5 via a rotating shaft 46. The cross-section of the feed tube 5 is rectangular. The diameters of the first feeding roller 19 and the second feeding roller 17 are equal to the width of the feed tube 5, and multiple material collection grooves 40 are provided on the first feeding roller 19 and the second feeding roller 17. The second motor 9 is mounted on the feed tube 5, and its output shaft is connected to the first feeding roller 19. The system is fixedly connected, with two pulleys 41 fixed on the rotating shaft 46. The belt 42 is sleeved on the outside of the two pulleys 41. The second motor 9 drives the first feeding roller 19 to rotate, which causes the rotating shaft 46 to drive the pulleys 41 and belt 42 to rotate. This drives the other rotating shaft 46 and the second feeding roller 17 to rotate. The first feeding roller 19 and the second feeding roller 17 rotate at the same speed. The collecting trough 40 can carry carbon fiber material and plastic raw material from one side of the first feeding roller 19 and the second feeding roller 17 to the other side, thus controlling the feeding speed of plastic raw material and carbon fiber material.

[0032] like Figure 1 , Figure 8 and Figure 9 As shown, the guide tube 5 is provided with an installation part 6 on the outer side of the second feeding roller 17. One end of the second feeding roller 17 extends into the installation part 6. A claw-shaped part 44 is provided in the installation part 6. The claw-shaped part 44 includes a fixed part 21 and a sliding part 18. The number of sliding parts 18 is the same as that of the material collection trough 40, and the two are slidably arranged. A spring 43 is provided between the fixed part 21 and the second feeding roller 17. One end of the spring 43 extends into the inner side of the second feeding roller 17. A cover plate 47 is installed on the installation part 6 by bolts. An adjusting bolt 45 is threaded on the cover plate 47. One end of the adjusting bolt 45 abuts against the fixed part 21. When the adjusting bolt 45 is rotated, the fixed part 21 is disengaged, which can drive the sliding part 18 to slide in the material collection trough 40. At this time, the spring 43 is compressed, which makes the volume of the material collection trough 40 smaller. This can reduce the amount of plastic raw material or carbon fiber material discharged per unit time, so that the ratio of the two can be adjusted in real time as needed.

[0033] like Figure 2 As shown, a funnel-shaped collecting hood 16 is provided below the two guide pipes 5 corresponding to the feed pipe 7. By setting the collecting hood 16, the plastic raw material and carbon fiber material can be concentrated towards the middle of the feed pipe 7 after entering the feed pipe 7. The two are mixed synchronously while falling, which can achieve the effect of preliminary mixing and avoid excessive dispersion of the two, which would affect the uniformity of subsequent mixing.

[0034] Working principle: Plastic raw materials and carbon fiber materials are placed into two hoppers 8 respectively. The feeding speed of both is controlled by a switch. After the plastic raw materials and carbon fiber materials enter the feed pipe 7, the collecting hood 16 guides them to the middle for the first preliminary mixing. Then they fall into the barrel 3. Under the heating of the heating component 2 and the pushing action of the first screw 15 driven by the first motor 4, the plastic raw materials are heated into a molten state, and the carbon fiber materials are mixed in. Under the pushing action of the second screw 13 and the pusher screw convex 38, they enter the first guide cavity 12 and the second guide cavity 22 respectively. Then the molten plastic fluid passes through the first guide hole 25 and the second guide hole 26. The two fluids collide and mix in the annular mixing tank 23, so that the carbon fiber materials can be evenly dispersed into the molten plastic raw materials. The dispersion of carbon fiber materials in plastic fluid is better than that in solid plastic raw materials, thereby effectively ensuring the performance of the plastic parts after molding.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A raw material heating injection molding device for carbon fiber material processing, comprising a barrel (3), characterized in that, A first screw (15) is rotatably mounted inside the barrel (3), and a first motor (4) is mounted on the outside of the barrel (3) to drive the first screw (15) to rotate. A feed pipe (7) is also mounted on the barrel (3), and two hoppers (8) are mounted on the feed pipe (7). A guide pipe (5) is provided between the hoppers (8) and the feed pipe (7). A mixing mechanism (1) is mounted on the end of the first screw (15) away from the first motor (4). The mixing mechanism (1) is mounted on the end of the barrel (3), and the mixing mechanism (1) includes an injection nozzle sleeve (10) and a mixing sleeve (11). The second screw (13) and the fixed sleeve (14) are connected together. The injection nozzle sleeve (10) is fixedly connected to the barrel (3) by bolts. The mixing sleeve (11) is connected to the barrel (3) by a pin to restrict the rotational freedom of the mixing sleeve (11). The mixing sleeve (11) is provided with an annular mixing groove (23) at one end near the injection nozzle sleeve (10) and a partition column (32) at the other end. The partition column (32) is provided with a first guide cavity (12), and the diameter of the partition column (32) is smaller than the inner diameter of the barrel (3). One end of the fixed sleeve (14) is rotatably installed on the partition. A second flow guide cavity (22) is formed on the outside of the partition column (32) and between the fixing sleeve (14) and the barrel (3). The partition column (32) is provided with multiple arrayed first flow guide holes (25) and second flow guide holes (26) on both sides of the annular mixing groove (23). One end of the first flow guide hole (25) is connected to the annular mixing groove (23) and the other end is connected to the first flow guide cavity (12). One end of the second flow guide hole (26) is connected to the annular mixing groove (23) and the other end is connected to the second flow guide cavity (22). An installation cavity is provided inside the fixing sleeve (14). (39), and the fixed sleeve (14) is provided with a limiting part (37) that is inserted into the first screw (15). When the first motor (4) drives the first screw (15) to rotate, the second screw (13) and the fixed sleeve (14) rotate synchronously. The second screw (13) is located in the mounting cavity (39), and one end of the second screw (13) extends into the first guide cavity (12), and the other end is connected to the fixed sleeve (14) by bolts. The outer side of the fixed sleeve (14) is also provided with a pusher spiral protrusion (38), and the outer side of the barrel (3) is provided with a heating component (2). The fixed sleeve (14) is provided with multiple through grooves (35), which are used to allow fluid to enter the first guide cavity (12). The barrel (3) is provided with a positioning platform (20). The fixed sleeve (14) is provided with two arc-shaped blocks (34) on its outer side. There is a hollow gap (36) between the two arc-shaped blocks (34), which is used to allow fluid to enter the second guide cavity (22).

2. The raw material heating and injection molding device for carbon fiber material processing according to claim 1, characterized in that, The first guide hole (25) and the second guide hole (26) are both oblique hole structures. The mixing sleeve (11) is provided with a first guide cone (24) at the first guide cavity (12), and the mixing sleeve (11) is provided with a guide cone groove (27) at the second guide cavity (22).

3. The raw material heating and injection molding device for carbon fiber material processing according to claim 2, characterized in that, The injection nozzle sleeve (10) is provided with a conical guide hole (29) on the side near the mixing sleeve (11). A number of arrayed spiral guide strips (30) are provided on the inner wall of the conical guide hole (29). The cross section of the spiral guide strips (30) is semi-circular. A second guide cone (31) is provided on the mixing sleeve (11) at the position corresponding to the conical guide hole (29).

4. The raw material heating injection molding device for carbon fiber material processing according to claim 3, characterized in that, The injection nozzle sleeve (10) is provided with an annular protrusion (28), the two sides of the annular protrusion (28) are conical surfaces, and the mixing sleeve (11) is provided with a groove (33) that cooperates with the annular protrusion (28).

5. The raw material heating and injection molding device for carbon fiber material processing according to claim 4, characterized in that, The feed tube (5) is equipped with a switch for controlling the feeding speed. The switch includes a first feeding roller (19), a second feeding roller (17), a second motor (9), a pulley (41), and a belt (42). The first feeding roller (19) and the second feeding roller (17) are rotatably installed in the two feed tubes (5) via a rotating shaft (46). The cross-section of the feed tube (5) is rectangular. The diameter of the first feeding roller (19) and the second feeding roller (17) is equal to the width of the feed tube (5). The first feeding roller (19) and the second feeding roller (17) are provided with multiple material collection grooves (40). The second motor (9) is installed on the feed tube (5), and its output shaft is fixedly connected to the first feeding roller (19). There are two pulleys (41) and they are fixed on the rotating shaft (46). The belt (42) is sleeved on the outside of the two pulleys (41).

6. The raw material heating injection molding device for carbon fiber material processing according to claim 5, characterized in that, The guide tube (5) is provided with an installation part (6) on the outer side of the second feeding roller (17). One end of the second feeding roller (17) extends into the installation part (6). A claw-shaped part (44) is provided in the installation part (6). The claw-shaped part (44) includes a fixed part (21) and a sliding part (18). The number of sliding parts (18) is the same as that of the collecting trough (40), and the two are slidably arranged. A spring (43) is provided between the fixed part (21) and the second feeding roller (17). One end of the spring (43) extends into the inner side of the second feeding roller (17). The installation part (6) is fitted with a cover plate (47) by bolts. An adjusting bolt (45) is threaded onto the cover plate (47). One end of the adjusting bolt (45) abuts against the fixed part (21).

7. The raw material heating injection molding device for carbon fiber material processing according to claim 6, characterized in that, The feed pipe (7) is provided with a funnel-shaped collecting hood (16) below the two guide pipes (5).

Images