Plastic extruding machine for PP filling rope production

Abstract

The invention relates to the technical field of PP filling rope production, and discloses a plastic extruding machine for PP filling rope production, the plastic extruding machine comprises a heating charging barrel, one side of the heating charging barrel is fixedly connected with an extrusion die orifice, the other side of the heating charging barrel is fixedly connected with a gear box, one side, far away from the heating charging barrel, of the gear box is fixedly connected with an output motor, and the output motor is connected with the extrusion die orifice. A control center is fixedly connected to the other side, away from the heating charging barrel, of the gearbox, a feeding mechanism is fixedly connected to the side, close to the gearbox, of the top end of the heating charging barrel, and a filtering and cleaning mechanism is fixedly connected to the side, close to the extrusion die opening, of the top end of the heating charging barrel. A servo motor drives a filtering conical barrel to rotate through a rotating shaft, raw materials are screened when the filtering conical barrel rotates, small raw material particles directly fall off, and large raw material particles enter a discharging groove, enter a crushing assembly through the discharging groove and a discharging channel and are crushed through the crushing assembly, so that the crushing efficiency is improved, and the crushing efficiency is improved. And all the melted raw material particles are small.

Description

Technical Field

[0001] The invention relates to the technical field of PP filling rope production, and more specifically to an extruder for producing PP filling rope. Background Art

[0002] PP filling rope is cable PP filling rope, which is a material filled in the required place to play a fixed protection or insulation role. The main function of the cable filling rope is to keep the cable round and improve the roundness of the finished cable. At the same time, the filling rope can also help improve the cable's tensile and sway resistance. The PP mesh filling rope is woven with polypropylene mesh tearing fibers and has good heat shrinkage performance. Polypropylene filling is suitable for lightweight filling; PP is the abbreviation of polypropylene, which is a polymer formed by the addition polymerization of propylene. It is a white waxy material with a transparent and light appearance. Polypropylene is a thermoplastic synthetic resin with excellent performance. It is a colorless, translucent, thermoplastic, lightweight general-purpose plastic with chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high-wear resistance processing performance. Therefore, it is widely used. When producing PP filling rope, an extruder is required to complete the production; When producing PP filling ropes through an extruder, the raw materials need to be added into the extruder. After the extruder melts the raw materials, it is extruded into products. However, when adding the raw materials, the particles of the raw materials are different in size. Therefore, when melting, it is easy for larger particles to fail to melt completely. If the unmelted raw material particles are extruded, the quality of the PP filling rope produced at this time is poor, and even needs to be re-produced; When the extruder is extruding at the outlet, a filtering screen is generally provided to intercept some impurities, such as unmelted particles or iron filings dropped from the inside of the extruder. However, the extruder needs to be in continuous production. If there are too many impurities on the filter screen, the production needs to be stopped. During the shutdown, the overall production efficiency will be affected. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the implementation rules of the present invention provide an extruder for producing PP filling ropes to solve the technical problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an extruder for producing PP filling ropes, comprising a heating barrel, one side of the heating barrel is fixedly connected to an extrusion die, the other side of the heating barrel is fixedly connected to a gear box, the side of the gear box away from the heating barrel is fixedly connected to an output motor, the other side of the gear box away from the heating barrel is fixedly connected to a control center, the top of the heating barrel is fixedly connected to a feeding mechanism on the side close to the gear box, and the top of the heating barrel is fixedly connected to a filtering and cleaning mechanism on the side close to the extrusion die; The feeding mechanism includes a feeding barrel for adding raw material particles, the top end of the feeding barrel is fixedly connected to a mounting plate, the top end of the mounting plate is fixedly connected to a servo motor, the bottom end of the feeding barrel is fixedly connected to a conical barrel, the bottom end of the servo motor is fixedly connected to a rotating shaft, the top end of the side surface of the rotating shaft is fixedly connected to a filtering cone, the bottom end of the rotating shaft is fixedly connected to a crushing assembly, and the bottom end of the crushing assembly is fixedly connected to a stirring shaft blade.

[0005] In a preferred embodiment, a feed trough is opened in the middle of the inner side of the upper barrel, the bottom end of the filter cone is in contact with the top of the feed trough, the bottom end of the feed trough is fixedly connected with a feed channel, the bottom end of the feed channel is fixedly connected with the top of the crushing assembly, and a buffer strip is arranged at the top of the filter cone.

[0006] In a preferred embodiment, the feed trough is conical, and there are four of them. The bottom ends of the four feed troughs are connected to the top end of the feed channel, and the feed channel forms an angle of ten degrees with the horizontal direction. The bottom end of the stirring shaft blade is movably connected to a support plate, and the side of the support plate is fixedly connected to the interior of the loading barrel.

[0007] In a preferred embodiment, the crushing assembly includes a collecting barrel that can receive raw materials in a feeding channel, the interior of the collecting barrel is movably connected with a connecting shaft, the top of the connecting shaft is fixedly connected to the bottom end of the rotating shaft, the side of the connecting shaft is fixedly connected with a conveying screw, the bottom end of the collecting barrel is fixedly connected with a crushing mesh plate, the bottom end of the connecting shaft is fixedly connected with a crushing blade, and the crushing blade is located below the conveying screw.

[0008] In a preferred embodiment, the filtering and cleaning mechanism includes a fixed cylinder fixedly connected to the heating cylinder, the top of the fixed cylinder is movably connected with a rotating screw, the top of the rotating screw is fixedly connected with a rotating handwheel, the side of the rotating screw is threadedly connected with a movable plate, the side of the movable plate is fixedly connected with a connecting plate, the bottom end of the connecting plate is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a first filter plate, the side of the first filter plate is movably connected with a second filter plate, and the side of the second filter plate is fixedly connected to the interior of the heating barrel.

[0009] In a preferred embodiment, the bottom end of the connecting plate is movably connected to a cleaning plate at the side away from the movable plate, the cleaning plate is movably connected to a fixed shaft inside the connecting plate, the side of the fixed shaft is fixedly connected to a limiting plate, the bottom end of the limiting plate is fixedly connected to the top end of the heating barrel, and the side of the cleaning plate is in contact with the side of the first filter plate.

[0010] In a preferred embodiment, the control center collects the temperature data information WD in the heating barrel, the time data information SJ of the continuous operation of the heating barrel when the filter cleaning mechanism is not running, and the quality data information ZL of the extruded product at the extrusion die, and the control center calculates the judgment value P. The calculation formula of the judgment value P is: , where k1 and k2 are weights, and 0≤k1≤1, 0≤k2≤1, k1+k2=1, and the control center compares the calculated judgment value P with its internal threshold value Y. When the judgment value P<threshold value Y, the control center reminds that the filter cleaning mechanism needs to work at this time. When the judgment value P≥threshold value Y, the control center does not remind.

[0011] Technical effects and advantages of the present invention: The servo motor of the present invention drives the filter cone to rotate through the rotating shaft. When the filter cone rotates, the raw materials are screened, small raw material particles fall directly, and large raw material particles enter the feed trough and enter the crushing component through the feed trough and the feed channel. After being crushed by the crushing component, all raw material particles are small, and only large particles are crushed, thereby improving work efficiency. The present invention is provided with a connecting shaft, a conveying screw and a crushing blade. Large raw material particles enter the collecting barrel through the feeding channel. At this time, the rotating shaft drives the connecting shaft to rotate, and the connecting shaft drives the conveying screw to rotate. The conveying screw sends the large raw material particles to the top of the crushing screen, and the connecting shaft drives the crushing blade to rotate. After the large raw material particles are crushed, they are discharged through the crushing screen, thereby ensuring that the raw material particles entering the heating barrel are small. When the hand wheel of the present invention is rotated, the rotating hand wheel drives the rotating screw to rotate, so that the movable plate moves. When the movable plate moves, the first filter plate is driven to move through the connecting plate and the connecting rod. At this time, the first filter plate is pulled out from the heating barrel, and the second filter plate performs filtering normally without stopping. After the first filter plate is pulled out, it is cleaned and sent back to the heating barrel to allow it to continue working. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2It is a schematic diagram of the overall structure of the feeding mechanism of the present invention.

[0014] Figure 3 It is a schematic diagram of the internal structure of the loading barrel of the present invention.

[0015] Figure 4 It is a schematic diagram of the internal structure of the loading barrel of the present invention.

[0016] Figure 5 It is a schematic diagram of the structure after the outer part of the loading barrel of the present invention is removed.

[0017] Figure 6 It is a schematic diagram of the overall structure of the crushing assembly of the present invention.

[0018] Figure 7 It is a schematic diagram of the structure of the filtering and cleaning mechanism of the present invention.

[0019] Figure 8 It is a schematic diagram of the internal structure of the heating barrel of the present invention.

[0020] Fig. 9 It is a schematic diagram of the explosion structure of the filtering and cleaning mechanism of the present invention.

[0021] The reference numerals are: 1, heating barrel; 2, gear box; 3, output motor; 4, control center; 5, extrusion die; 6, feeding mechanism; 601, feeding barrel; 602, mounting plate; 603, cone barrel; 604, servo motor; 605, rotating shaft; 606, filter cone barrel; 607, feeding trough; 608, feeding channel; 609, crushing assembly; 6091, collecting barrel; 6092, connecting shaft; 609 3. Conveying screw; 6094. Crushing blade; 6095. Crushing screen plate; 610. Stirring shaft blade; 611. Support plate; 7. Filter cleaning mechanism; 701. Fixed cylinder; 702. Rotating hand wheel; 703. Rotating screw; 704. Moving plate; 705. Connecting plate; 706. Connecting rod; 707. First filter plate; 708. Second filter plate; 709. Limiting plate; 710. Fixed shaft; 711. Cleaning plate. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are only examples. The extruder for producing PP filling ropes involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference Figure 1The present invention provides an extruder for producing PP filling ropes, comprising a heating barrel 1, one side of the heating barrel 1 is fixedly connected to an extrusion die 5, the other side of the heating barrel 1 is fixedly connected to a gear box 2, the side of the gear box 2 away from the heating barrel 1 is fixedly connected to an output motor 3, the other side of the gear box 2 away from the heating barrel 1 is fixedly connected to a control center 4, the top of the heating barrel 1 is fixedly connected to a feeding mechanism 6 on the side close to the gear box 2, the top of the heating barrel 1 is fixedly connected to a side close to the extrusion die 5, the control center 4 collects temperature data information WD in the heating barrel 1, time data information SJ of continuous operation of the heating barrel 1 when the filtering and cleaning mechanism 7 is not in operation, and quality data information ZL of the product extruded from the extrusion die 5, and the control center 4 calculates a judgment value P, and the calculation formula of the judgment value P is: , where k1 and k2 are weights, and 0≤k1≤1, 0≤k2≤1, k1+k2=1, and the control center 4 compares the calculated judgment value P with its internal threshold value Y. When the judgment value P<threshold value Y, the control center 4 reminds that the filter cleaning mechanism 7 needs to work at this time. When the judgment value P≥threshold value Y, the control center 4 does not remind at this time.

[0024] In the embodiment of the present application, when the equipment is performing extrusion work, if the extrusion working time is long, the filtering and cleaning mechanism 7 is prone to blockage. When the temperature is high or the quality of the extruded product is high, it means that the filtering and cleaning mechanism 7 is not prone to blockage. Therefore, the judgment value P calculated by the above three sets of data in this application can accurately reflect the working condition of the equipment. When the judgment value P is less than the threshold value Y, the temperature is low and the product quality is poor, which requires timely processing. When the judgment value P is greater than or equal to the threshold value Y, the product quality is high. In addition, the product quality data information ZL is for the management personnel to score the products produced. The scoring value can be 0-100 points, and the standard product is 60 points.

[0025] Reference Figure 2 — Figure 5The feeding mechanism 6 includes a feeding barrel 601 for adding raw material particles, the top of the feeding barrel 601 is fixedly connected to a mounting plate 602, the top of the mounting plate 602 is fixedly connected to a servo motor 604, the bottom of the feeding barrel 601 is fixedly connected to a conical barrel 603, the bottom of the servo motor 604 is fixedly connected to a rotating shaft 605, the top of the side of the rotating shaft 605 is fixedly connected to a filter cone 606, the bottom of the rotating shaft 605 is fixedly connected to a crushing assembly 609, the bottom of the crushing assembly 609 is fixedly connected to a stirring shaft blade 610, a feeding trough 607 is provided in the middle of the inner side of the feeding barrel 601, and a filtering cone 606 is fixedly connected to the top of the side of the rotating shaft 605, and a crushing assembly 609 is fixedly connected to the bottom of the crushing assembly 609. The bottom end of the cone 606 is in contact with the top end of the feed chute 607. The bottom end of the feed chute 607 is fixedly connected with a feed channel 608. The bottom end of the feed channel 608 is fixedly connected with the top end of the crushing assembly 609. A buffer strip is arranged at the top end of the filter cone 606. The feed chute 607 is conical, and there are four feed chute 607. The bottom ends of the four feed chute 607 are connected with the top end of the feed channel 608. The feed channel 608 forms an angle of ten degrees with the horizontal direction. The bottom end of the stirring shaft blade 610 is movably connected with a support plate 611. The side of the support plate 611 is fixedly connected with the inside of the upper barrel 601.

[0026] In the embodiment of the present application, when the raw material particles are screened through the filter cone 606, a buffer strip is provided on the filter cone 606 to prevent the raw material from sliding off the top of the filter cone 606 without being screened by the filter cone 606. After screening, small raw material particles will fall directly, while large raw material particles will slide off from the top of the filter cone 606, and the bottom of the filter cone 606 contacts the top of the discharge chute 607, so they will fall into the discharge chute 607. The discharge chute 607 is four conical troughs, and the diameter of the bottom is smaller. Therefore, the four discharge troughs 607 can discharge the raw material particles that fall around the filter cone 606 from the four lower openings, and the bottom of the discharge trough 607 is connected to the discharge channel 608, so they will enter the discharge channel 608, as shown in FIG. Figure 5 As shown, the discharge trough 607 is a trough, and the bottom end of the filter cone 606 is connected to the top end of the trough. The raw materials are placed directly into the upper barrel 601. The discharge channel 608 itself has a certain angle, which is convenient for entering the crushing component 609 through the discharge channel 608. After being crushed by the crushing component 609, the crushed raw materials and the raw materials falling from the filter cone 606 will be scattered by the stirring shaft blade 610.

[0027] Reference Figure 6The crushing assembly 609 includes a collecting barrel 6091 that can receive the raw materials in the feeding channel 608. The collecting barrel 6091 is movably connected to a connecting shaft 6092. The top of the connecting shaft 6092 is fixedly connected to the bottom end of the rotating shaft 605. The side of the connecting shaft 6092 is fixedly connected to a conveying screw 6093. The bottom end of the collecting barrel 6091 is fixedly connected to a crushing mesh plate 6095. The bottom end of the connecting shaft 6092 is fixedly connected to a crushing blade 6094. The crushing blade 6094 is located below the conveying screw 6093.

[0028] In the embodiment of the present application, after the large raw material particles enter the collecting barrel 6091 through the discharge channel 608, the connecting shaft 6092 will synchronously drive the crushing blade 6094 to rotate. When the crushing blade 6094 rotates, the raw material particles on the crushing mesh plate 6095 are crushed, and the crushed raw material particles fall from the crushing mesh plate 6095. The raw material particles entering the heating barrel 1 are all relatively small.

[0029] Reference Figure 7 , Figure 8 as well as Fig. 9 The filtering and cleaning mechanism 7 includes a fixed cylinder 701 fixedly connected to the heating cylinder 1, a rotating screw 703 is movably connected to the top of the fixed cylinder 701, a rotating hand wheel 702 is fixedly connected to the top of the rotating screw 703, a movable plate 704 is threadedly connected to the side of the rotating screw 703, a connecting plate 705 is fixedly connected to the side of the movable plate 704, a connecting plate 705 is fixedly connected to the bottom end of the connecting plate 705, a connecting rod 706 is fixedly connected to the bottom end of the connecting rod 706, a first filter plate 707 is fixedly connected to the bottom end of the connecting rod 706, and a first filter plate 707 is fixedly connected to the bottom end of the first filter plate 707. A second filter plate 708 is movably connected to the side, and the side of the second filter plate 708 is fixedly connected to the inside of the heating barrel 1. A cleaning plate 711 is movably connected to the side of the bottom end of the connecting plate 705 away from the movable plate 704. The cleaning plate 711 is movably connected to the inside of the connecting plate 705 away from the fixed shaft 710. The side of the fixed shaft 710 is fixedly connected to a limiting plate 709. The bottom end of the limiting plate 709 is fixedly connected to the top of the heating barrel 1. The side of the cleaning plate 711 contacts the side of the first filter plate 707.

[0030] In the embodiment of the present application, when the first filter plate 707 is blocked, it can be moved upwards at this time, and the second filter plate 708 can be used to perform normal filtering work, so as to ensure that the present application can be continuously produced. Since the first filter plate 707 performs filtering work for a long time and the second filter plate 708 is only used temporarily, the second filter plate 708 can be cleaned when the machine is disassembled after a long period of use. When the first filter plate 707 moves upwards, the cleaning plate 711 will rotate upwards at this time, and will not hinder the first filter plate 707 from moving upwards. After all the meshes are removed from the heating barrel 1, the hand wheel 702 is rotated in the reverse direction, so that the first filter plate 707 will move downward. When the first filter plate 707 moves downward, the cleaning plate 711 is limited by the limiting plate 709, so the cleaning plate 711 cannot rotate downward. The cleaning plate 711 contacts the first filter plate 707 to scrape off the impurities on the surface of the first filter plate 707, thereby completing the cleaning work of the first filter plate 707. In addition, sealing plates are provided at the top and bottom ends of the first filter plate 707 to prevent the molten raw material from being squeezed out when the first filter plate 707 is removed.

[0031] The working principle of the present invention is as follows: raw material particles are put into the loading barrel 601, the servo motor 604 is started and drives the rotating shaft 605 to rotate, and the rotating shaft 605 drives the filter cone 606 to rotate when rotating, and the filter cone 606 screens the raw material particles entering when rotating, and the smaller raw material particles directly fall through the filter cone 606, while the larger raw material particles fall from the filter cone 606 into the discharge trough 607, and enter the four discharge channels 608 after passing through the discharge channels 608, and enter the interior of the collecting barrel 6091; When the larger raw material particles enter the collecting barrel 6091, the rotating shaft 605 will synchronously drive the connecting shaft 6092 to rotate, and the connecting shaft 6092 will drive the conveying screw 6093 to rotate. When the conveying screw 6093 rotates, the raw material particles entering the collecting barrel 6091 will be sent to the top of the crushing mesh plate 6095, and the connecting shaft 6092 will synchronously drive the crushing blade 6094 to rotate. When the crushing blade 6094 rotates, it will crush the raw material particles on the crushing mesh plate 6095, and the crushed raw material particles will fall from the crushing mesh plate 6095. The raw material particles entering the heating barrel 1 are all small; After the raw material particles enter the interior of the heating barrel 1, the heating barrel 1 heats the raw material particles to melt them. The melted raw material is filtered after passing through the first filter plate 707 and the second filter plate 708. The filtered raw material is extruded into a preset shape through the extrusion die 5. When the first filter plate 707 is blocked, the rotating hand wheel 702 is turned. When the rotating hand wheel 702 is turned, the rotating screw 703 is driven to rotate. When the rotating screw 703 is turned, the moving plate 704 moves upward. When the moving plate 704 moves upward, it drives the connecting plate 705 to move upward. When the connecting plate 705 moves upward, it drives the second connecting plate 705 to move upward through the connecting rod 706. A filter plate 707 moves upward. When the first filter plate 707 moves upward, the cleaning plate 711 will rotate upward and will not hinder the first filter plate 707 from moving upward. When all the mesh holes of the first filter plate 707 are removed from the heating barrel 1, the hand wheel 702 is rotated in the opposite direction, so the first filter plate 707 will move downward. When the first filter plate 707 moves downward, the cleaning plate 711 is limited by the limiting plate 709, so the cleaning plate 711 cannot rotate downward. The cleaning plate 711 contacts the first filter plate 707, scrapes off the impurities on the surface of the first filter plate 707, and completes the cleaning work of the first filter plate 707.

[0032] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extruder for producing PP filling ropes, comprising a heating barrel (1), characterized in that: One side of the heating barrel (1) is fixedly connected to an extrusion die (5), the other side of the heating barrel (1) is fixedly connected to a gear box (2), the side of the gear box (2) away from the heating barrel (1) is fixedly connected to an output motor (3), the other side of the gear box (2) away from the heating barrel (1) is fixedly connected to a control center (4), the top of the heating barrel (1) close to the gear box (2) is fixedly connected to a feeding mechanism (6), the top of the heating barrel (1) close to the extrusion die ( 5) is fixedly connected to a filtering and cleaning mechanism (7); the feeding mechanism (6) comprises a feeding cylinder (601) into which raw material particles can be added, the top of the feeding cylinder (601) is fixedly connected to a mounting plate (602), the top of the mounting plate (602) is fixedly connected to a servo motor (604), the bottom of the feeding cylinder (601) is fixedly connected to a conical cylinder (603), the bottom of the servo motor (604) is fixedly connected to a rotating shaft (605), and the side of the rotating shaft (605) is fixedly connected to a rotating shaft (605). The top end of the rotating shaft (605) is fixedly connected to a filter cone (606), the bottom end of the rotating shaft (605) is fixedly connected to a crushing assembly (609), and the bottom end of the crushing assembly (609) is fixedly connected to a stirring shaft blade (610); the filtering and cleaning mechanism (7) comprises a fixed cylinder (701) fixedly connected to the heating cylinder (1), the top end of the fixed cylinder (701) is movably connected to a rotating screw (703), and the top end of the rotating screw (703) is fixedly connected to a rotating hand wheel (702). The side of the rotating screw (703) is threadedly connected to a movable plate (704), the side of the movable plate (704) is fixedly connected to a connecting plate (705), the bottom end of the connecting plate (705) is fixedly connected to a connecting rod (706), the bottom end of the connecting rod (706) is fixedly connected to a first filter plate (707), the side of the first filter plate (707) is movably connected to a second filter plate (708), and the side of the second filter plate (708) is fixedly connected to the inside of the heating barrel (1).

2. The extruder for producing PP filling rope according to claim 1, characterized in that: A material discharge trough (607) is provided in the middle of the inner side of the upper material cylinder (601); the bottom end of the filter cone (606) is in contact with the top end of the material discharge trough (607); the bottom end of the material discharge trough (607) is fixedly connected to a material discharge channel (608); the bottom end of the material discharge channel (608) is fixedly connected to the top end of the crushing assembly (609); and a buffer strip is provided at the top end of the filter cone (606).

3. The extruder for producing PP filling rope according to claim 2, characterized in that: The feed trough (607) is conical, and there are four feed troughs (607). The bottom ends of the four feed troughs (607) are connected to the top end of the feed channel (608). The feed channel (608) forms an angle of ten degrees with the horizontal direction. The bottom end of the stirring shaft blade (610) is movably connected to a support plate (611), and the side of the support plate (611) is fixedly connected to the inside of the loading barrel (601).

4. The extruder for producing PP filling rope according to claim 1, characterized in that: The crushing assembly (609) includes a collecting barrel (6091) capable of receiving raw materials in a feeding channel (608); the collecting barrel (6091) is movably connected to a connecting shaft (6092) inside; the top end of the connecting shaft (6092) is fixedly connected to the bottom end of a rotating shaft (605); the side of the connecting shaft (6092) is fixedly connected to a conveying screw (6093); the bottom end of the collecting barrel (6091) is fixedly connected to a crushing mesh plate (6095); the bottom end of the connecting shaft (6092) is fixedly connected to a crushing blade (6094); and the crushing blade (6094) is located below the conveying screw (6093).

5. The extruder for producing PP filling rope according to claim 1, characterized in that: The bottom end of the connecting plate (705) is movably connected to a cleaning plate (711) on the side away from the movable plate (704); the cleaning plate (711) is movably connected to a fixed shaft (710) inside the connecting plate (705); the side of the fixed shaft (710) is fixedly connected to a limiting plate (709); the bottom end of the limiting plate (709) is fixedly connected to the top end of the heating barrel (1); and the side of the cleaning plate (711) is in contact with the side of the first filter plate (707).

6. The extruder for producing PP filling rope according to claim 1, characterized in that: The control center (4) collects temperature data information WD in the heating barrel (1), time data information SJ of continuous operation of the heating barrel (1) when the filtering and cleaning mechanism (7) is not in operation, and quality data information ZL of the product extruded from the extrusion die (5), and the control center (4) calculates a judgment value P. The calculation formula of the judgment value P is: , where k1 and k2 are weights, and 0≤k1≤1, 0≤k2≤1, k1+k2=1, and the control center (4) compares the calculated judgment value P with its internal threshold value Y. When the judgment value P is less than the threshold value Y, the control center (4) reminds that the filter cleaning mechanism (7) needs to work at this time. When the judgment value P is greater than or equal to the threshold value Y, the control center (4) does not remind.

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