Screw extraction equipment for small extruder of polycarbonate device

Abstract

The invention relates to the field of extruders, in particular to small extruder screw extraction equipment of a polycarbonate device, which comprises an extruder main body, a working screw, a positioning disc, a guide screw column, a positioning plate, an internal thread fluted disc, a limiting screw rod, an adjusting plate and an internal thread block, when the internal thread fluted disc rotates anticlockwise, the positioning plate is kept in a fixed state, the working screw can be conveyed to the outside, when the working screw is conveyed to a certain position, the working screw is not conveyed to the outside any more, the working screw rotates, the horizontal position of the adjusting plate is adjusted at the moment, and the working screw can be stably adjusted. When the adjusting plate is pushed outwards, the internal thread block can be driven to move outwards, due to the fact that the internal thread block and the working screw rod are installed in a threaded mode, the working screw rod can be pulled out, the working screw rod can be kept in a horizontal state in the pulling-out process and does not incline, and parts in the extruder body can be protected.

Description

Technical Field

[0001] The invention relates to the technical field of extruders, in particular to a small extruder screw extraction device for a polycarbonate device. Background Art

[0002] Polycarbonate (PC for short), also known as PC plastic, is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, due to the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates, their application in engineering plastics is limited. The small extruder attached to the polycarbonate device provides catalyst feeding equipment for the large extruder of the PC device.

[0003] Extruders are the main equipment for the production of light alloy (aluminum alloy, copper alloy and magnesium alloy) tubes, rods and profiles. They have been produced and developed for only more than a century, but they have undergone tremendous changes. From a manual hydraulic press with a few meganewtons to a fully automatic oil press with a capacity of 200 meganewtons, the types of extruders have also increased greatly. The capacity and quantity of extruders reflect the production technology level of an enterprise. The capacity, quantity, production capacity and equipment level of a country's extruders reflect the level of industrial development of a country.

[0004] The small extruder in the existing polycarbonate unit encountered a screw jam problem during operation, which made it impossible to turn the gear normally. To deal with this situation, the project maintenance task clearly required the removal of the auxiliary pipelines and small gear pump in order to extract and clean the screw. This process significantly increased the complexity and difficulty of the maintenance.

[0005] Therefore, the present invention proposes a small extruder screw extraction device for a polycarbonate device to solve the problems existing in the prior art. Summary of the invention

[0006] In view of the above problems, a small extruder screw extraction device for a polycarbonate device is provided. By rotating the internal threaded tooth disc counterclockwise, the working screw is extruded under the continuous force applied by the thread. When the working screw is transported to a certain position, the working screw is no longer transported to the outside and the working screw rotates itself. At this time, the horizontal position of the adjustment plate is adjusted. When the adjustment plate is pushed outward, the internal thread block will be driven to move outward. Since the internal thread block is threadedly installed with the working screw, the working screw can be extracted. During the extraction process, the working screw will remain in a horizontal state and will not tilt, thereby protecting the internal components of the extruder body.

[0007] In order to solve the problems of the prior art, the present invention provides a small extruder screw extraction device for a polycarbonate device, comprising an extruder body, a working screw, a positioning disk, a guide wire column, a positioning plate, an internally threaded toothed disk, a limit screw, an adjustment plate and an internally threaded block, wherein the working screw is arranged inside the extruder body, the positioning disk is arranged on one side of the extruder body, the extruder body and the positioning disk are connected by auxiliary bolts, the guide wire column is symmetrically arranged on one side of the positioning disk, the positioning plate is sleeved on the outside of the guide wire column, the internally threaded toothed disk is arranged on the back of the positioning plate, the limit screw is arranged through the inside of the positioning plate, the adjustment plate is arranged at one end of the limit screw, and the internally threaded block is arranged inside the adjustment plate.

[0008] Preferably, the cross-sectional shape of the positioning plate is set to a cross shape, and through holes matching the guide wire column are symmetrically opened inside the positioning plate. First wire nuts matching the guide wire column are provided on both sides of the positioning plate, and the internally threaded toothed disc matches the working screw.

[0009] Preferably, grooves are symmetrically provided on the top of the positioning plate, rectangular holes are symmetrically provided inside the positioning plate, a first limiting plate is slidably connected inside the rectangular hole, a second limiting plate with an L-shaped cross-section is provided on the top of the first limiting plate, and a positioning screw that engages with the groove is threaded through the top of the second limiting plate.

[0010] Preferably, a cross bar is arranged inside the first limit plate, a working motor is arranged at the input end of the cross bar, the cross bar is connected to the first limit plate via a shaft sleeve, and a second gear disc is arranged at the output end of the cross bar.

[0011] Preferably, a third toothed disc is symmetrically arranged on one side of the positioning plate, the positioning plate and the third toothed disc are connected via a first bearing, and a first thread hole matching the limiting screw rod is opened inside the third toothed disc.

[0012] Preferably, a second thread hole matching the working screw is opened inside the internal thread block, and two groups of second thread holes are symmetrically opened on the outer wall of the internal thread block, each group of second thread holes is provided with two, and the internal threads of the second thread holes are connected with fixing bolts.

[0013] Preferably, a through hole matching the internal thread block is provided inside the adjustment plate, and positioning holes connected to the through hole are symmetrically provided inside the adjustment plate, and the positioning holes match the fixing bolts.

[0014] Preferably, a cleaning component is provided on the outer side of the guide wire column, and the cleaning component is arranged on both sides of the positioning plate. The cleaning component includes a cleaning plate, and the cleaning plate is sleeved on the outer side of the guide wire column. Second wire caps matching the guide wire column are provided on both sides of the outer wall of the cleaning plate.

[0015] Preferably, a mounting tube is provided on one side of the cleaning plate, and the central axes of the mounting tube, the cleaning plate and the working screw coincide with each other.

[0016] Preferably, a cleaning ring is provided inside the installation tube, a brush is provided inside the cleaning ring, and a locking bolt in contact with the cleaning ring is threadedly connected to the outer side of the installation tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Place the positioning plate on one side of the extruder body, let the working screw pass through the positioning plate, and then manually turn the auxiliary bolt to position the extruder body and the positioning plate through the auxiliary bolt, so that the user can disassemble and assemble the positioning plate conveniently.

[0019] 2. Then, the horizontal position of the positioning plate is adjusted under the action of the guide wire column. When the positioning plate is adjusted to the appropriate position, it is positioned, and then the internal threaded toothed disc on the back of the positioning plate is rotated counterclockwise. When the internal threaded toothed disc rotates counterclockwise, the positioning plate remains fixed, so that the working screw can be transported to the outside. When the working screw is transported to a certain position, the working screw is no longer transported to the outside and the working screw rotates by itself. At this time, the horizontal position of the adjustment plate is adjusted. When the adjustment plate is pushed outward, it will drive the internal thread block to move outward. Since the internal thread block is threadedly installed with the working screw, the internal thread block can only fall off in the rotating state, so the horizontal movement of the internal thread block at this time will drive the working screw to move, thereby realizing the extraction of the working screw, and the working screw will remain horizontal during the extraction process without tilting, thereby realizing the protection of the internal parts of the extruder body.

[0020] 3. Drive the installation cylinder under the action of the cleaning plate, and install the cleaning ring inside the installation cylinder. At the same time, manually turn the locking bolt to make the locking bolt contact with the top of the cleaning ring, so that the user can disassemble and assemble the cleaning ring. The cleaning plate serves as the main support and installation platform, and the installation cylinder is set on one side. The central axis of the installation cylinder, cleaning plate and working screw coincides. This design ensures the stability and accuracy of the device during operation and avoids the problem of incomplete cleaning caused by shaking or deviation. At the same time, a brush is set inside the cleaning ring, and the dust and debris on the outer surface of the working screw can be cleaned by the brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A perspective view of a small extruder screw extraction device for a polycarbonate plant from a first viewing angle.

[0022] Figure 2 It is a stereoscopic view of a small extruder screw extraction device of a polycarbonate plant from a second viewing angle.

[0023] Figure 3 The present invention is a three-dimensional structural diagram of an adjusting plate and a working screw in a screw extraction device of a small extruder of a polycarbonate device.

[0024] Figure 4 The present invention is a schematic diagram of the installation structure of a positioning plate in a small extruder screw extraction device of a polycarbonate device.

[0025] Figure 5 The present invention is a schematic diagram of the installation structure of an internal threaded toothed disc, a second toothed disc and a third toothed disc in a small extruder screw extraction device of a polycarbonate device.

[0026] Figure 6 The present invention is a schematic diagram of the back structure of the positioning plate in the screw extraction equipment of a small extruder of a polycarbonate device.

[0027] Figure 7 The invention is a schematic diagram of the installation structure of the first limit plate and the second limit plate in a small extruder screw extraction device of a polycarbonate device.

[0028] Figure 8 It is a small extruder screw extraction equipment for polycarbonate device. Figure 3 Enlarged structural diagram at A in the middle.

[0029] Fig. 9 It is a small extruder screw extraction equipment for polycarbonate device. Figure 6 Enlarged structural diagram at B in the middle.

[0030] Fig.10 It is a small extruder screw extraction equipment for polycarbonate device. Figure 4 Enlarged structural diagram at point C in the middle.

[0031] The numbers in the figure are: 1. Extruder body; 2. Working screw; 3. Positioning disk; 4. Guide wire column; 5. Positioning plate; 6. Internally threaded toothed disk; 7. Limiting screw; 8. Adjusting plate; 9. Internally threaded block; 10. Rectangular hole; 11. First limiting plate; 12. Second limiting plate; 13. Positioning screw; 14. Cross bar; 15. Second toothed disk; 16. Third toothed disk; 17. Positioning hole; 18. Fixing bolt; 19. Cleaning plate; 20. Second thread nut; 21. Mounting cylinder; 22. Cleaning ring; 23. Locking bolt; 24. First thread hole; 25. Groove; 26. First thread nut. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figures 1 to 10 As shown, the present invention provides:

[0034] A small extruder screw extraction device for a polycarbonate device comprises an extruder body 1, a working screw 2, a positioning disk 3, a guide wire column 4, a positioning plate 5, an internally threaded toothed disk 6, a limiting screw rod 7, an adjusting plate 8 and an internally threaded block 9, wherein the working screw 2 is arranged inside the extruder body 1, the positioning disk 3 is arranged on one side of the extruder body 1, the extruder body 1 and the positioning disk 3 are connected by auxiliary bolts, the guide wire column 4 is symmetrically arranged on one side of the positioning disk 3, the positioning plate 5 is sleeved on the outside of the guide wire column 4, the internally threaded toothed disk 6 is arranged on the back of the positioning plate 5, the limiting screw rod 7 is arranged through the inside of the positioning plate 5, the adjusting plate 8 is arranged at one end of the limiting screw rod 7, and the internally threaded block 9 is arranged inside the adjusting plate 8.

[0035] Place the positioning disk 3 on one side of the extruder body 1, and make the working screw 2 pass through the positioning disk 3, then manually turn the auxiliary bolt to position the extruder body 1 and the positioning disk 3 through the auxiliary bolt, so that the user can disassemble and assemble the positioning disk 3 conveniently, and then adjust the horizontal position of the positioning plate 5 under the action of the guide wire column 4. When the positioning plate 5 is adjusted to a suitable position, it is positioned, and then the internal threaded toothed disk 6 on the back of the positioning plate 5 is rotated counterclockwise. When the internal threaded toothed disk 6 rotates counterclockwise, the positioning plate 5 remains fixed, so that the working screw 2 can be transported to the outside. When the working screw 2 is transported to a certain position, the working screw 2 will no longer be transported to the outside. During the conveying, the working screw 2 rotates by itself. At this time, the horizontal position of the adjusting plate 8 is adjusted. When the adjusting plate 8 is pushed outward, the internal thread block 9 will be driven to move outward. Since the internal thread block 9 is threadedly installed with the working screw 2, the internal thread block 9 can only fall off in the rotating state. Therefore, the horizontal movement of the internal thread block 9 at this time will drive the working screw 2 to move, and then the working screw 2 can be pulled out. During the pulling out process, the working screw 2 will remain in a horizontal state without tilting, so the internal parts of the extruder body 1 can be protected, and the threads on the outer surface of the working screw 2 will not be damaged, which is more convenient for users to use.

[0036] like Figure 1 , Figure 2 and Figure 5As shown, the cross-sectional shape of the positioning plate 5 is set to a cross shape, and the interior of the positioning plate 5 is symmetrically provided with through holes matching the guide wire column 4, and both sides of the positioning plate 5 are provided with first wire nuts 26 matching the guide wire column 4, and the internal threaded toothed disc 6 matches the working screw 2.

[0037] The cross-sectional shape of the positioning plate 5 is a cross, which can not only reduce the weight of the positioning plate 5 itself, but also make it easier to observe the working screw 2 during the transportation process. At the same time, the through hole inside the positioning plate 5 matches the guide wire column 4, so that the positioning plate 5 can be horizontally adjusted under the action of the guide wire column 4. Finally, the first thread nuts 26 on both sides of the positioning plate 5 are threadedly connected to the working screw 2. These first thread nuts 26 are connected to the guide wire column 4 through threads, and are used to position the working position of the positioning plate 5 to prevent it from moving or offsetting.

[0038] like Figure 5 and Figure 7 As shown, the top of the positioning plate 5 is symmetrically provided with a groove 25, the interior of the positioning plate 5 is symmetrically provided with a rectangular hole 10, the interior of the rectangular hole 10 is slidably connected with a first limiting plate 11, the top of the first limiting plate 11 is provided with a second limiting plate 12 with an L-shaped cross-sectional shape, and the top thread of the second limiting plate 12 is penetrated by a positioning screw 13 that engages with the groove 25.

[0039] The positioning plate 5 is a main component, and a groove 25 is symmetrically provided on the top thereof, which is used to cooperate with the positioning screw 13 to realize the positioning function. The positioning plate 5 is symmetrically provided with rectangular holes 10 inside. These rectangular holes 10 provide sliding space for the first limit plate 11. The first limit plate 11 is slidably connected to the positioning plate 5 through the rectangular holes 10, and can be moved within a certain range to adjust the position. When the position of the first limit plate 11 needs to be adjusted, the positioning screw 13 is first loosened, so that the lower end of the positioning screw 13 is disengaged from the groove 25, and the fixation of the first limit plate 11 is released. Then, the first limit plate 11 is slid within the range of the rectangular hole 10 and adjusted to a suitable position as needed. After the adjustment is completed, the positioning screw 13 is tightened so that its lower end is tightly engaged with the groove 25, thereby fixing the first limit plate 11 in the new position, which can prevent the second limit plate 12 from being displaced during the working process, thereby improving the stability of the device during use, and will not cause damage to the internal threaded toothed disc 6.

[0040] like Figure 6 and Figure 8 As shown, a cross bar 14 is disposed inside the first limit plate 11 , a working motor is disposed at the input end of the cross bar 14 , the cross bar 14 is connected to the first limit plate 11 via a shaft sleeve, and a second gear disc 15 is disposed at the output end of the cross bar 14 .

[0041] The working motor is installed through the first limit plate 11. The working motor is installed at the input end of the cross bar 14 as a power source to provide rotational power for the entire system. When the working motor is started, it can drive the cross bar 14 set inside the first limit plate 11 to rotate. The cross bar 14 cooperates with the shaft sleeve inside the first limit plate 11 when rotating. This connection method allows the cross bar 14 to rotate freely relative to the first limit plate 11 while maintaining a certain stability. At the same time, the presence of the shaft sleeve reduces the friction and wear during the rotation process, thereby improving the durability and reliability of the system. A second toothed disc 15 is provided at the output end of the cross bar 14. When the cross bar 14 is driven by the working motor to rotate, the second toothed disc 15 will also rotate accordingly. When the second toothed disc 15 is engaged with the internally threaded toothed disc 6, the internally threaded toothed disc 6 can be rotated counterclockwise, which is convenient for spiral extraction of the working screw 2.

[0042] like Figure 3 , Figure 6 and Fig. 9 As shown, a third toothed disc 16 is symmetrically provided on one side of the positioning plate 5 , and the positioning plate 5 and the third toothed disc 16 are connected via a first bearing. A first thread hole 24 matching the limiting screw rod 7 is provided inside the third toothed disc 16 .

[0043] The positioning plate 5 and the third toothed disc 16 are rotatably installed through the first bearing, and the first wire hole 24 inside the third toothed disc 16 matches the limiting screw rod 7. When the second toothed disc 15 moves to one side of the third toothed disc 16, the second toothed disc 15 is meshed with the third toothed disc 16. When the second toothed disc 15 rotates, the third toothed disc 16 can be rotated. At this time, the limiting screw rod 7 is threadedly connected with the first wire hole 24. The limiting screw rod 7 cannot rotate under the action of the adjusting plate 8 and generates a reaction force, so as to realize the horizontal adjustment of the limiting screw rod 7. Similarly, the adjusting plate 8 can be moved in the horizontal direction, so as to facilitate the extraction of the internal thread block 9 and the working screw rod 2.

[0044] like Figure 1 and Figure 5 As shown, the interior of the internal thread block 9 is provided with a second thread hole matching the working screw 2, the outer wall of the internal thread block 9 is symmetrically provided with two groups of second thread holes, each group of second thread holes is provided with two, the internal threads of the second thread holes are connected with fixing bolts 18, the interior of the adjusting plate 8 is provided with a through hole matching the internal thread block 9, the interior of the adjusting plate 8 is symmetrically provided with positioning holes 17 connected with the through hole, and the positioning holes 17 match the fixing bolts 18.

[0045] The second thread hole inside the internal thread block 9 matches the working screw 2, so that the internal thread block 9 can be threadedly installed on the outside of the working screw 2, and the internal thread block 9 can only be disassembled and assembled in a spiral manner. By using the combined structure of the working screw 2 and the internal thread block 9, rotation, movement and other actions can be easily realized, thereby improving the working efficiency. Since the internal thread block 9 can be disassembled and assembled, the internal thread block 9 can be replaced according to the specifications of the working screw 2, thereby ensuring that the internal thread block 9 and the working screw 2 can be stably threadedly connected, and finally the fixing bolt 18 is installed through the second thread hole on the outer wall of the internal thread block 9. When the adjusting plate 8 moves horizontally to one side of the internal thread block 9 under the action of the limiting screw 7, the through hole inside the adjusting plate 8 coincides with the internal thread block 9, and the positioning hole 17 inside the adjusting plate 8 matches the fixing bolt 18, so the adjusting plate 8 will drive the fixing bolt 18 and the internal thread block 9 to move when it moves, and the working screw 2 is pulled out when the internal thread block 9 moves horizontally, thereby improving the working efficiency of the device.

[0046] like Figure 1 , Figure 4 and Fig.10 As shown, a cleaning component is provided on the outer side of the guide wire column 4, and the cleaning component is provided on both sides of the positioning plate 5. The cleaning component includes a cleaning plate 19, and the cleaning plate 19 is sleeved on the outer side of the guide wire column 4. Second wire caps 20 matching the guide wire column 4 are provided on both sides of the outer wall of the cleaning plate 19.

[0047] The cleaning assembly is installed through the guide wire column 4. The cleaning assembly is mainly composed of a cleaning plate 19 and a second wire cap 20. Second wire caps 20 matching the guide wire column 4 are arranged on both sides of the outer wall of the cleaning plate 19. These second wire caps 20 are used to fix the position of the cleaning plate 19 on the guide wire column 4. There are two cleaning plates 19, one of which is arranged at the extraction outlet of the working screw 2 of the extruder body 1, so as to pre-treat the outer surface of the working screw 2 that has just been extracted, so as to avoid excessive garbage on the outer surface of the working screw 2, which makes it impossible to effectively rotate the internal threaded tooth disk 6 counterclockwise, thereby causing the working screw 2 to be unable to be spirally extracted. At the same time, the other cleaning plate 19 is arranged on the back of the adjusting plate 8. Such a setting can further process the outer surface of the working screw 2. The garbage on the outer surface of the working screw 2 can be doubly cleaned through the double cleaning assembly to ensure the cleanliness of the working screw 2 and avoid cleaning the working screw 2 again after it is taken out, which wastes a lot of manpower and material resources.

[0048] like Figure 3 , Figure 4 and Fig.10As shown, a mounting tube 21 is provided on one side of the cleaning plate 19, and the central axes of the mounting tube 21, the cleaning plate 19 and the working screw 2 coincide with each other. A cleaning ring 22 is provided inside the mounting tube 21, and a brush is provided inside the cleaning ring 22. The outer side of the mounting tube 21 is threadedly connected with a locking bolt 23 in contact with the cleaning ring 22.

[0049] Under the action of the cleaning plate 19, the mounting cylinder 21 is driven, and the cleaning ring 22 is installed inside the mounting cylinder 21. At the same time, the locking bolt 23 is manually rotated to make the locking bolt 23 contact with the top of the cleaning ring 22, so that the user can disassemble and assemble the cleaning ring 22. The cleaning plate 19 serves as the main support and installation platform, and a mounting cylinder 21 is arranged on one side thereof. The central axis of the mounting cylinder 21, the cleaning plate 19 and the working screw 2 coincide with each other. Such a design ensures the stability and accuracy of the device during operation and avoids the problem of incomplete cleaning caused by shaking or deviation. At the same time, a cleaning ring 22 is installed inside the mounting cylinder 21, and a brush is arranged inside the cleaning ring 22. The dust and debris on the outer surface of the working screw 2 can be cleaned by the brush.

[0050] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A small extruder screw extraction device for a polycarbonate device, characterized in that: The invention comprises an extruder body (1), a working screw (2), a positioning disk (3), a guide wire column (4), a positioning plate (5), an internally threaded toothed disk (6), a limiting screw rod (7), an adjusting plate (8) and an internally threaded block (9), wherein the working screw rod (2) is arranged inside the extruder body (1), the positioning disk (3) is arranged on one side of the extruder body (1), the extruder body (1) and the positioning disk (3) are connected by auxiliary bolts, the guide wire column (4) is symmetrically arranged on one side of the positioning disk (3), the positioning plate (5) is sleeved on the outside of the guide wire column (4), the internally threaded toothed disk (6) is arranged on the back of the positioning plate (5), the limiting screw rod (7) is arranged through the inside of the positioning plate (5), the adjusting plate (8) is arranged at one end of the limiting screw rod (7), and the internally threaded block (9) is arranged inside the adjusting plate (8).

2. A small extruder screw extraction device for a polycarbonate device according to claim 1, characterized in that: The cross-sectional shape of the positioning plate (5) is set to be cross-shaped, and the interior of the positioning plate (5) is symmetrically provided with through holes matching the guide wire column (4). Both sides of the positioning plate (5) are provided with first thread nuts (26) matching the guide wire column (4), and the internal threaded toothed disc (6) matches the working screw (2).

3. A small extruder screw extraction device for a polycarbonate device according to claim 1, characterized in that: The top of the positioning plate (5) is symmetrically provided with grooves (25), the interior of the positioning plate (5) is symmetrically provided with rectangular holes (10), the interior of the rectangular hole (10) is slidably connected with a first limiting plate (11), the top of the first limiting plate (11) is provided with a second limiting plate (12) with an L-shaped cross-section, the top thread of the second limiting plate (12) is penetrated by a positioning screw (13) engaged with the groove (25).

4. A small extruder screw extraction device for a polycarbonate device according to claim 3, characterized in that: A cross bar (14) is arranged inside the first limit plate (11); a working motor is arranged at the input end of the cross bar (14); the cross bar (14) and the first limit plate (11) are connected via a shaft sleeve; and a second toothed disc (15) is arranged at the output end of the cross bar (14).

5. A small extruder screw extraction device for a polycarbonate device according to claim 1, characterized in that: A third toothed disc (16) is symmetrically arranged on one side of the positioning plate (5); the positioning plate (5) and the third toothed disc (16) are connected via a first bearing; a first thread hole (24) matching the limiting screw rod (7) is provided inside the third toothed disc (16).

6. A small extruder screw extraction device for a polycarbonate device according to claim 1, characterized in that: The inner part of the internal thread block (9) is provided with a second thread hole matching the working screw (2), and the outer wall of the internal thread block (9) is symmetrically provided with two groups of second thread holes, each group of the second thread holes is provided with two, and the inner threads of the second thread holes are connected with fixing bolts (18).

7. A small extruder screw extraction device for a polycarbonate device according to claim 6, characterized in that: The adjusting plate (8) has a through hole inside that matches the internal thread block (9), and the adjusting plate (8) has symmetrically arranged positioning holes (17) that are connected to the through hole, and the positioning holes (17) match the fixing bolts (18).

8. The small extruder screw extraction device of a polycarbonate device according to claim 1, characterized in that: A cleaning component is arranged on the outer side of the guide wire column (4), and the cleaning component is arranged on both sides of the positioning plate (5). The cleaning component includes a cleaning plate (19), and the cleaning plate (19) is sleeved on the outer side of the guide wire column (4). Second wire caps (20) matching the guide wire column (4) are arranged on both sides of the outer wall of the cleaning plate (19).

9. A small extruder screw extraction device for a polycarbonate device according to claim 8, characterized in that: A mounting tube (21) is provided on one side of the cleaning plate (19), and the central axes of the mounting tube (21), the cleaning plate (19) and the working screw (2) coincide with each other.

10. A small extruder screw extraction device for a polycarbonate device according to claim 9, characterized in that: A cleaning ring (22) is arranged inside the installation tube (21), a brush is arranged inside the cleaning ring (22), and a locking bolt (23) in contact with the cleaning ring (22) is threadedly connected to the outer side of the installation tube (21).

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