A method for recycling waste plastics

Abstract

The application provides a waste plastic recycling method, which uses a waste plastic recycling device, the device comprises a crushing box, a cleaning box, a heating plasticizing machine and an extrusion forming machine, a movable upper crushing plate is arranged on the top of the crushing box, a movable side crushing plate is arranged on the left side of the crushing box, an electromagnetic suction cup is arranged in the upper crushing plate, an upper cleaning disc and a lower cleaning disc are arranged in the cleaning box, and a plurality of upper brush heads and lower brush heads are uniformly arranged on the upper cleaning disc and the lower cleaning disc respectively. The method can crush waste plastics, separate the internal metal parts, improve the cleaning effect of the crushed plastics and has high automation degree.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic recycling, in particular to a waste plastic recycling method. BACKGROUND

[0002] The quantity of waste plastics is very large, and if recycling and reprocessing can be carried out, it has good environmental protection and energy saving results. For the plastic factory, the waste plastics released by industrial production can be fully realized as resources, which realizes resource utilization for the recycling and treatment of waste plastics, and saves production cost for the plastic factory.

[0003] The process of plastic recycling and utilization is roughly divided into cleaning, crushing, melting and forming, and transportation is required between each process, and the degree of automation is low. In addition to some larger metal parts that can be separated in advance, some smaller parts such as screws are not easy to separate, which affects the subsequent processing and utilization process. And in the cleaning process, the recesses or corners of the plastic often cannot be effectively cleaned. SUMMARY

[0004] In view of the above problems, the present application provides a waste plastic recycling method, which can crush waste plastics, separate internal metal parts, and improve the cleaning effect of crushed plastics, and has high automation.

[0005] To solve the above problems, the technical scheme adopted by the present application is:

[0006] A waste plastic recycling method uses a waste plastic recycling device, which includes a crushing box, a cleaning box, a heating plasticizer and an extrusion molding machine. The top of the crushing box is provided with an upper crushing plate which can move up and down. The left side of the crushing box is provided with a side crushing plate which can move left and right. An electromagnetic chuck is installed in the upper crushing plate. An upper cleaning disc and a lower cleaning disc are installed in the cleaning box. A plurality of upper brush heads and lower brush heads are uniformly distributed on the upper cleaning disc and the lower cleaning disc respectively. The specific processing steps of recycling waste plastics by using the above recycling device are as follows:

[0007] S1, first, the waste plastics are put into the crushing box, and the residual metal parts in the waste plastics are crushed by the extrusion of the upper crushing plate and the side crushing plate, and then the metal parts are adsorbed by the electromagnetic chuck in the upper crushing plate;

[0008] S2, the waste plastics with separated metal parts are sent into the cleaning box, and the crushed plastics are placed between the upper cleaning disc and the lower cleaning disc. The upper cleaning disc rotates, and then the crushed plastics are brushed by the uniformly distributed upper brush heads and lower brush heads;

[0009] S3, the plastic after brushing enters the heating plasticizing machine to heat and melt, and finally is sent into the extruding forming machine to extrude into granular shape for reuse again;

[0010] The bottom of the upper cleaning tray is also uniformly provided with a plurality of water spraying heads, and the top of the upper cleaning tray is fixed with a rotating rod which can move up and down.

[0011] The bottom of the crushing box is open, and is provided with a hydraulic opening and closing door, and the left side of the cleaning box is provided with a feeding port corresponding to the hydraulic opening and closing door.

[0012] Preferably, the top of the cleaning box is fixed with a top plate through a support, the top plate is provided with a first hydraulic cylinder, and the telescopic end of the first hydraulic cylinder is fixedly connected with the upper crushing plate.

[0013] Preferably, the left side of the crushing box is provided with a second hydraulic cylinder, and the telescopic end of the second hydraulic cylinder is fixedly connected with the side crushing plate.

[0014] Preferably, the top plate is fixedly provided with a first air cylinder, the telescopic end of the first air cylinder is fixedly connected with a connecting plate, and the upper end of the rotating rod is rotatably connected with the connecting plate.

[0015] Preferably, the top of the cleaning box is provided with a motor, the inner top of the cleaning box is rotatably connected with two intermeshing gears, the output shaft of the motor is fixedly connected with one of the gears, the side wall of the rotating rod is fixedly provided with a plurality of guide plates, and the other gear is provided with a through hole through which the rotating rod and the plurality of guide plates pass.

[0016] Preferably, a connecting pipe is arranged through the rotating rod, the bottom of the connecting pipe is communicated with the plurality of water spraying heads through a liquid distribution pipe, the bottom of the top plate is provided with a water pump, and the outlet end of the water pump is connected with the upper end of the connecting pipe through a rotary joint.

[0017] Preferably, a mounting net is fixedly arranged in the cleaning box, the plurality of lower brush heads are arranged on the mounting net, the lower cleaning tray is uniformly provided with a plurality of contraction holes through which the corresponding lower brush heads pass, the bottom of the lower cleaning tray is arranged on the mounting net through a plurality of elastic assemblies, and the upper cleaning tray and the lower cleaning tray are respectively provided with a material scraping assembly and an opening and closing assembly.

[0018] Preferably, the elastic assembly comprises a plurality of mounting cylinders fixedly arranged at the bottom of the mounting net, a resisting rod is elastically arranged in the mounting cylinder through a spring, and the upper end of the resisting rod penetrates through the mounting net and is fixedly connected with the lower cleaning tray.

[0019] Preferably, the scraping assembly comprises a radial groove arranged at the bottom of the upper cleaning disc, a motorized telescopic rod is mounted at the top of the upper cleaning disc, the telescopic end of the motorized telescopic rod extends into the radial groove and is fixed with a scraper, a conductive ring electrically connected with the motorized telescopic rod is embedded in the sidewall of the upper cleaning disc, and a conductive head matched with the conductive ring is embedded in the inner wall of the cleaning box, and the conductive head is connected with a switch and a power supply.

[0020] Preferably, the opening and closing assembly comprises a radial port arranged on the lower cleaning disc and the mounting net, a second air cylinder is mounted on the right side of the cleaning box, the telescopic end of the second air cylinder is fixedly connected with a sealing plate extending into the radial port on the lower cleaning disc, and the bottom of the radial port on the mounting net is fixed with a discharge channel matched with the outlet of the heating plasticizer.

[0021] The application has the following beneficial effects:

[0022] 1. By installing the crushing box, the cleaning box, the heating plasticizer and the extrusion forming machine, the waste plastics can sequentially undergo the crushing, cleaning, melting and forming processes, and recycling is realized, and the degree of automation is high.

[0023] 2. By installing the upper crushing plate and the side crushing plate, the waste plastics are put into the crushing box, the first hydraulic cylinder and the second hydraulic cylinder are started, and the upper crushing plate and the side crushing plate are driven to crush the waste plastics into small pieces, and then the electromagnetic suction disc in the upper crushing plate is opened, so that the small metal parts crushed out can be effectively separated.

[0024] 3. By installing the upper cleaning disc and the lower cleaning disc, the crushed plastics are sent into the cleaning box through the hydraulic opening and closing door, the first air cylinder is started, the upper cleaning disc is driven to move downward through the rotating rod, the crushed plastics are pressed against the lower cleaning disc, the lower cleaning disc moves downward under the pressure, a plurality of lower brush heads extend into the contraction holes, the motor is started, the rotating rod is driven to rotate through a pair of gears, and then the upper cleaning disc is driven to rotate, at the same time, the water pump is started, the cleaning agent is pumped into the connecting pipe and the distribution pipe, and finally sprayed out through a plurality of water spraying heads, which can effectively clean the recesses and corners of the plastics through the up-and-down brushing of the upper brush head and the lower brush head, and the cleaning effect is good.

[0025] 4. By installing the scraping assembly and the opening and closing assembly, when the cleaning is completed, the upper cleaning disc moves upward by a distance, the pressure is released, the lower cleaning disc is reset under the action of the spring, the lower brush head is retracted into the contraction hole, the conductive head contacts the conductive ring at this time, the switch is opened, the motorized telescopic rod is powered, the scraper moves downward out of the radial groove, and then the upper cleaning disc is rotated, so that the plastics on the lower cleaning disc can be pushed by the scraper, the second air cylinder is started to drive the sealing plate to open, the cleaned plastics are finally pushed into the radial port, and then automatically enter the heating plasticizer through the discharge channel. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0028] Figure 3 This is a bottom view of the upper cleaning disc proposed in this invention;

[0029] Figure 4 This is a top view of the lower cleaning disc proposed in this invention;

[0030] Figure 5 This is a cross-sectional view of the rotating rod proposed in this invention;

[0031] Figure 6 This is a cleaning state diagram of the present invention.

[0032] In the diagram: 1 Crushing box, 2 Side crushing plate, 3 Second hydraulic cylinder, 4 Top plate, 5 Upper crushing plate, 6 First hydraulic cylinder, 7 Water pump, 8 First air cylinder, 9 Rotary joint, 10 Connecting plate, 11 Rotating rod, 12 Motor, 13 Gear, 14 Electric telescopic rod, 15 Upper cleaning plate, 16 Conductive ring, 17 Scraper, 18 Conductive head, 19 Upper brush head, 20 Radial opening, 21 Feed inlet, 22 Hydraulic opening and closing door, 23 Cleaning box, 24 Sealing plate, 25 Second air cylinder, 26 Discharge channel, 27 Heating plasticizer, 28 Extrusion molding machine, 29 Lower cleaning plate, 30 Lower brush head, 31 Shrinkage hole, 32 Installation net, 33 Installation cylinder, 34 Support rod, 35 Spring, 36 Water spray head, 37 Guide plate, 38 Connecting pipe, 39 Electromagnetic chuck. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Reference Figures 1-6The utility model provides a kind of waste plastic recycling method, which uses a kind of waste plastic recycling device, the device includes crushing box 1, cleaning box 23, heating plastic machine 27 and extruding forming machine 28, the top of crushing box 1 is installed with the up-and-down movable upper crushing plate 5, the left side of crushing box 1 is installed with the left-and-right movable side crushing plate 2, electromagnetic chuck 39 is installed in upper crushing plate 5, upper cleaning disc 15 and lower cleaning disc 29 are installed in cleaning box 23, a plurality of upper brush heads 19 and lower brush heads 30 are respectively and uniformly distributed on upper cleaning disc 15 and lower cleaning disc 29, and the specific processing steps for recycling waste plastics by using the upper recycling device are as follows:

[0036] S1, first, waste plastics are put into the crushing box 1, and the residual metal parts in the waste plastics are crushed by the extrusion of the upper crushing plate 5 and the side crushing plate 2, and then are adsorbed by the electromagnetic chuck 39 in the upper crushing plate 5.

[0037] S2, the waste plastics from which the metal parts are separated are sent into the cleaning box 23, the crushed plastics are placed between the upper cleaning disc 15 and the lower cleaning disc 29, the upper cleaning disc 15 rotates, and then the crushed plastics are brushed by the uniformly distributed upper brush heads 19 and lower brush heads 30.

[0038] S3, the brushed plastics are heated and melted in the heating plastic machine 27, and finally are sent into the extruding forming machine 28 to be extruded into granular shape for reuse.

[0039] The bottom of the upper cleaning disc 15 is also uniformly distributed with a plurality of water jet heads 36, and the top of the upper cleaning disc 15 is fixed with a vertically movable rotating rod 11.

[0040] The bottom of the crushing box 1 is open and is provided with a hydraulic opening and closing door 22, and the left side of the cleaning box 23 is provided with a feeding port 21 corresponding to the hydraulic opening and closing door 22.

[0041] Further, the top of the cleaning box 23 is fixed with a top plate 4 through a support, the first hydraulic cylinder 6 is installed on the top plate 4, the extension end of the first hydraulic cylinder 6 is fixedly connected with the upper crushing plate 5, the second hydraulic cylinder 3 is installed on the left side of the crushing box 1, the extension end of the second hydraulic cylinder 3 is fixedly connected with the side crushing plate 2, the first hydraulic cylinder 6 and the second hydraulic cylinder 3 are intermittently started to drive the upper crushing plate 5 and the side crushing plate 2 to extrude the waste plastics, and the vertical and horizontal multi-angle extrusion can effectively crush the residual metal parts in the plastics.

[0042] Further, the first air cylinder 8 is fixedly installed on the top plate 4, the extension end of the first air cylinder 8 is fixedly connected with a connecting plate 10, the upper end of the rotating rod 11 is rotationally connected with the connecting plate 10, the first air cylinder 8 is started to drive the upper cleaning disc 15 to move downward through the connecting plate 10 and the rotating rod 11, and the crushed plastics are tightly pressed against the lower cleaning disc 29.

[0043] Further, the top of the cleaning box 23 is provided with a motor 12, the inner top of the cleaning box 23 is rotatably connected with two intermeshing gears 13, the output shaft of the motor 12 is fixedly connected with one of the gears 13, the side wall of the rotating rod 11 is fixedly provided with a plurality of guide plates 37, and the other gear 13 is provided with a through hole for the rotating rod 11 and the plurality of guide plates 37 to pass through, so that the rotating rod 11 can rotate and move up and down.

[0044] Further, the rotating rod 11 is provided with a connecting pipe 38 penetrating therethrough, the bottom of the connecting pipe 38 is communicated with the plurality of water spraying heads 36 through a distribution pipe, the bottom of the top plate 4 is provided with a water pump 7, the water outlet end of the water pump 7 is connected with the upper end of the connecting pipe 38 through a rotary joint 9, so that the connecting pipe 38 can also be filled with water in the rotating state.

[0045] Further, the cleaning box 23 is fixedly provided with a mounting net 32, and the plurality of lower brush heads 30 are mounted on the mounting net 32; the lower cleaning disc 29 is uniformly provided with a plurality of contraction holes 31 for the corresponding lower brush heads 30 to pass through; and the bottom of the lower cleaning disc 29 is mounted on the mounting net 32 through a plurality of elastic components; and the upper cleaning disc 15 and the lower cleaning disc 29 are respectively provided with a scraping component and an opening and closing component.

[0046] Specifically, the elastic component comprises a plurality of mounting barrels 33 fixedly mounted on the bottom of the mounting net 32, a resisting rod 34 elastically mounted in the mounting barrel 33 through a spring 35, and the upper end of the resisting rod 34 penetrating through the mounting net 32 and fixedly connected with the lower cleaning disc 29.

[0047] Specifically, the scraping component comprises a radial slot arranged on the bottom of the upper cleaning disc 15, an electric telescopic rod 14 mounted on the top of the upper cleaning disc 15, a scraping plate 17 fixedly arranged on the telescopic end of the electric telescopic rod 14 and extending into the radial slot, a conductive ring 16 embedded on the side wall of the upper cleaning disc 15 and electrically connected with the electric telescopic rod 14, and a conductive head 18 embedded on the inner wall of the cleaning box 23 and matched with the conductive ring 16; the conductive head 18 is connected with a switch and a power supply; the electric telescopic rod 14 is powered by turning on the switch, so as to drive the scraping plate 17 to move downward out of the radial slot, and then rotate the upper cleaning disc 15, so as to push the plastic on the lower cleaning disc 29 through the scraping plate 17.

[0048] Specifically, the opening and closing component comprises a radial port 20 arranged on the lower cleaning disc 29 and the mounting net 32, a second air cylinder 25 mounted on the right side of the cleaning box 23, a sealing plate 24 fixedly connected with the telescopic end of the second air cylinder 25 and extending into the radial port 20 on the lower cleaning disc 29, and a discharge channel 26 fixedly arranged on the bottom of the radial port 20 on the mounting net 32 and connected with the discharge port of the plasticizing machine 27; the sealing plate 24 is driven to open by starting the second air cylinder 25, so that the cleaned plastic is finally pushed into the radial port 20 and then automatically enters the plasticizing machine 27 through the discharge channel 26 to be heated and melted.

[0049] The waste plastic is put into the crushing box 1, the first hydraulic cylinder 6 and the second hydraulic cylinder 3 are intermittently started, the upper crushing plate 5 and the side crushing plate 2 are driven to extrude the waste plastic, vertical and horizontal multi-angle extrusion can effectively crush the metal parts (generally the metal parts can be magnetized) remaining in the plastic, then the electromagnetic chuck 39 in the upper crushing plate 5 is opened, the small metal parts crushed out can be effectively separated.

[0050] The hydraulic opening and closing door 22 is opened, the crushed plastic slides into the cleaning box 23, the first air cylinder 8 is started, the upper cleaning disc 15 is driven to move down through the connecting plate 10 and the rotating rod 11, the crushed plastic is pressed against the lower cleaning disc 29, under the action of pressure, the lower cleaning disc 29 moves down, a plurality of lower brush heads 30 extend into the contraction hole 31, the motor 12 is started, the rotating rod 11 is driven to rotate through a pair of gears 13, and then the upper cleaning disc 15 is driven to rotate, at the same time, the water pump 7 is started, the cleaning agent is pumped into the connecting pipe 38 and the liquid distribution pipe, and finally sprayed out through a plurality of water spraying heads 36, which can effectively clean the recesses and corners of the plastic, and the cleaning effect is good, the waste water is discharged through the contraction hole 31 and the installed net 32.

[0051] After cleaning, the upper cleaning disc 15 moves up by a distance, so that the conductive ring 16 contacts the conductive head 18, at this time, the pressing force disappears, the lower cleaning disc 29 is reset under the action of the spring 35, the lower brush head 30 is retracted into the contraction hole 31, the switch is opened, the power is supplied to the electric telescopic rod 14, the scraper 17 is driven to move out of the radial groove, and then the upper cleaning disc 15 is rotated, so that the plastic on the lower cleaning disc 29 is pushed by the scraper 17, the second air cylinder 25 is started to drive the sealing plate 24 to open, the cleaned plastic is finally pushed into the radial port 20 and discharged, and then automatically enters the heating plasticizer 27 through the discharge channel 26, is heated and melted, and finally is extruded and granulated by the extrusion molding machine, so that the recycling process is completed.

[0052] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for recycling and reusing waste plastics, characterized in that, It uses a waste plastic recycling device, which includes a crushing box (1), a washing box (23), a heating plasticizer (27), and an extrusion molding machine (28). The top of the crushing box (1) is equipped with an upper crushing plate (5) that can move up and down, and the left side of the crushing box (1) is equipped with a side crushing plate (2) that can move left and right. An electromagnetic chuck (39) is installed inside the upper crushing plate (5). The washing box (23) is equipped with an upper washing plate (15) and a lower washing plate (29). Multiple upper brush heads (19) and lower brush heads (30) are evenly distributed on the upper washing plate (15) and the lower washing plate (29), respectively. The specific processing steps for recycling waste plastic using the above recycling device are as follows: S1. First, put the waste plastic into the crushing box (1). The waste plastic is crushed by the squeezing of the upper crushing plate (5) and the side crushing plate (2). The remaining metal parts in the waste plastic are crushed out and then adsorbed by the electromagnetic chuck (39) in the upper crushing plate (5). S2. The waste plastic from which the metal parts are separated is sent into the cleaning tank (23). The broken plastic is placed between the upper cleaning plate (15) and the lower cleaning plate (29). The upper cleaning plate (15) rotates, and then the broken plastic is brushed by multiple evenly distributed upper brush heads (19) and lower brush heads (30). S3. The washed plastic enters the heating plasticizer (27) for heating and melting, and is finally sent to the extrusion molding machine (28) for extrusion into granules for reuse. The bottom of the upper cleaning plate (15) is also evenly distributed with multiple water spray heads (36), and the top of the upper cleaning plate (15) is fixed with a rotating rod (11) that can move up and down. The bottom of the crushing box (1) is open and is equipped with a hydraulic opening and closing door (22). The left side of the cleaning box (23) is provided with a feed inlet (21) corresponding to the hydraulic opening and closing door (22). The cleaning box (23) is fixedly installed with an installation net (32), and the multiple lower brush heads (30) are all installed on the installation net (32). The lower cleaning plate (29) is evenly distributed with multiple shrinkage holes (31) for the corresponding lower brush heads (30) to pass through. The bottom of the lower cleaning plate (29) is installed on the installation net (32) through multiple elastic components. The upper cleaning plate (15) and the lower cleaning plate (29) are respectively equipped with scraping components and opening and closing components. During cleaning, under pressure, the lower cleaning plate moves downward, and multiple lower brush heads extend out of the contraction hole. While the upper and lower brush heads brush up and down, wastewater is discharged through the contraction hole and the installation mesh. After cleaning, the upper cleaning plate moves up a certain distance, the lower cleaning plate returns to its original position under the action of the spring, and the lower brush heads retract back into the contraction hole.

2. The method for recycling and reusing waste plastics according to claim 1, characterized in that, The top of the cleaning tank (23) is fixed with a top plate (4) by a bracket. A first hydraulic cylinder (6) is installed on the top plate (4). The telescopic end of the first hydraulic cylinder (6) is fixedly connected to the upper crushing plate (5).

3. The method for recycling and reusing waste plastics according to claim 1, characterized in that, A second hydraulic cylinder (3) is installed on the left side of the crushing box (1), and the telescopic end of the second hydraulic cylinder (3) is fixedly connected to the side crushing plate (2).

4. The method for recycling and reusing waste plastics according to claim 2, characterized in that, A first cylinder (8) is fixedly installed on the top plate (4). A connecting plate (10) is fixedly connected to the telescopic end of the first cylinder (8). The upper end of the rotating rod (11) is rotatably connected to the connecting plate (10).

5. The method for recycling and reusing waste plastics according to claim 1, characterized in that, The top of the cleaning tank (23) is equipped with a motor (12), and the top of the inner part of the cleaning tank (23) is rotatably connected with two meshing gears (13). The output shaft of the motor (12) is fixedly connected to one of the gears (13). The side wall of the rotating rod (11) is fixed with multiple guide plates (37), and the middle of the other gear (13) is provided with a through hole for the rotating rod (11) and multiple guide plates (37) to pass through.

6. The method for recycling and reusing waste plastics according to claim 2, characterized in that, A connecting pipe (38) is provided inside the rotating rod (11). The bottom of the connecting pipe (38) is connected to multiple water spray heads (36) through a liquid distribution pipe. A water pump (7) is installed at the bottom of the top plate (4). The water outlet end of the water pump (7) is connected to the upper end of the connecting pipe (38) through a rotary joint (9).

7. The method for recycling and reusing waste plastics according to claim 1, characterized in that, The elastic component includes multiple mounting cylinders (33) fixedly installed at the bottom of the mounting net (32). A stop rod (34) is elastically installed inside the mounting cylinder (33) by a spring (35). The upper end of the stop rod (34) passes through the mounting net (32) and is fixedly connected to the lower cleaning plate (29).

8. The method for recycling and reusing waste plastics according to claim 1, characterized in that, The scraping assembly includes a radial groove at the bottom of the upper cleaning plate (15), an electric telescopic rod (14) is installed on the top of the upper cleaning plate (15), the telescopic end of the electric telescopic rod (14) extends into the radial groove and is fixed with a scraper (17), a conductive ring (16) electrically connected to the electric telescopic rod (14) is embedded in the side wall of the upper cleaning plate (15), and a conductive head (18) that cooperates with the conductive ring (16) is embedded in the inner wall of the cleaning box (23), and the conductive head (18) is externally connected to a switch and a power supply.

9. A method for recycling and reusing waste plastics according to claim 1, characterized in that, The opening and closing assembly includes a radial opening (20) on the lower cleaning plate (29) and the mounting mesh (32). A second cylinder (25) is installed on the right side of the cleaning box (23). The telescopic end of the second cylinder (25) is fixedly connected to a sealing plate (24) extending into the radial opening (20) on the lower cleaning plate (29). The bottom of the radial opening (20) on the mounting mesh (32) is fixedly connected to the discharge channel (26) of the heating plasticizer (27).

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