Plastic extruding machine

Abstract

The utility model discloses a plastic extruding machine which comprises a bottom frame and further comprises a feeding mechanism, a filling mechanism and a cooling mechanism, the bottom frame is connected outside the feeding mechanism in a sleeved mode, the filling mechanism is arranged on one side of the bottom frame and is in through connection with the feeding mechanism through a discharging pipe, and the cooling mechanism is arranged below the discharging outer side of the feeding mechanism. The cooling mechanism comprises a cooling box, a driving assembly and a scraping strip frame, and the top face of the scraping strip frame is fixedly installed on the lifting frame. The liftable scraping strip frame is arranged in the cooling box, so that colloid impurities on the inner wall of the cooling box are scraped through the scraping strip frame; and meanwhile, a filter plate is further arranged in the scraping strip frame, a cleaning assembly is arranged above the filter plate, the impurities on the surface of the filter plate are scraped through the cleaning assembly, and the worker can conveniently clean the filter plate.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic machinery, in particular to an extruder. Background Art

[0002] The extruder is an important plastic machine. Most plastic products are produced and manufactured through the extruder. The plastic raw materials are heated to a molten state, extruded and cooled to form.

[0003] A search revealed the prior art publication number CN215151652U, which discloses an extruder comprising a housing, a heater, a discharge pipe fixed to and communicating with the interior of the housing, a feed mechanism mounted on one side of the housing and communicating with the interior of the housing, a second stirring shaft disposed along the length of the housing and rotatably connected thereto, a second motor driving the second stirring shaft, spiral blades fixed to the second stirring shaft and disposed along its length, and an exhaust gas extraction mechanism. The exhaust gas extraction mechanism comprises a hollow collection box fixed to the housing, a hollow purification box disposed on one side of the collection box, an exhaust pump mounted within the housing and communicating with the interior of the purification box, and an air intake plate fixed to the bottom end of the exhaust pump. The interior of the collection box is connected to the interior of the purification box via a first connecting pipe. The purification box is provided with an activated carbon adsorption plate disposed along its height. This application has the effect of treating exhaust gas and reducing air pollution.

[0004] However, in the prior art, after the extruder extrude the plastic raw material, the extruded plastic needs to be cooled and formed by a cooling device. Most of the existing cooling devices adopt water cooling. The water cooling box cools the extruded plastic for a long time to form it. The debris generated on the outside of the extruded plastic falls into the water tank. After long-term use, the debris adheres to the inner wall of the water cooling box, thereby affecting the cooling of the internal cooling water by the water cooling box. Therefore, an extruder is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an extruder, which is equipped with a liftable scraper rack to clean impurities on the inner wall of the cooling box to ensure that the cooling box cools the internal coolant and cools and shapes the extruded plastic, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An extruder comprises a base frame, a feeding mechanism, a filling mechanism and a cooling mechanism, wherein the base frame is sleeved on the outside of the feeding mechanism, the filling mechanism is arranged on one side of the base frame and is connected to the feeding mechanism via a discharge pipe, and the cooling mechanism is arranged below the outer side of the feeding mechanism discharge;

[0008] The cooling mechanism includes a cooling box, a driving assembly and a scraper frame. The top surface of the scraper frame is fixedly installed with a lifting frame. The lifting frame is sleeved on the outside of the driving assembly and is threadedly connected to the driving assembly. The four ends of the scraper frame are respectively slidably connected to the inner wall of the cooling box. A filter plate is also provided inside the scraper frame.

[0009] A cleaning component for cleaning the filter plate is also provided on the top of the filter plate.

[0010] Preferably, the driving assembly includes a bracket and a threaded rod, and the brackets are symmetrically arranged on both side walls of the cooling box, the top end of the threaded rod passes through the top surface of the bracket and is keyed to the output shaft of the servo motor, the servo motor is bolted to the top surface of the bracket, and the bottom end of the threaded rod is fixed to the inner bottom surface of the bracket through a bearing seat, and one side of the lifting frame is threadedly sleeved on the outside of the threaded rod.

[0011] Preferably, the inner top surface and inner bottom surface of the other bracket are fixedly mounted to the top end and bottom end of the guide rod respectively, and the other side of the lifting frame is sleeved on the outside of the guide rod and slidably connected to the outer arc surface of the guide rod.

[0012] Preferably, a blocking block is provided at a position where the outer arc surface of the threaded rod is flush with the top surface of the cooling box.

[0013] Preferably, the cleaning assembly includes a mounting frame, which is fixedly mounted on two symmetrical top surfaces of the scraper frame respectively. A slide groove is provided in the middle of the top surface of the mounting frame, and the inner wall of the slide groove is slidably connected to the slider. The bottom end of the slider is located on the surface of the filter plate and a scraper is also provided. The bottom end of the scraper is slidably connected to the surface of the filter plate.

[0014] Preferably, the feeding mechanism includes a feeding bin and an auger, the base frame is sleeved on the outer arc surface of the feeding bin, and a rotating motor is provided on the side wall of the feeding bin away from the conical discharge port, one end of the auger passes through the side wall of the feeding bin and is keyed to the output shaft of the rotating motor, and the end side wall of the auger is rotatably connected to the inner wall of the feeding bin.

[0015] Preferably, a rotating frame is fixedly provided on the inner wall of the conical discharge port of the feeding bin at the outer arc end of the auger, and a plurality of scrapers are respectively provided on the side walls of the rotating frame facing the conical discharge port, and the ends of the scrapers are respectively slidably connected to the inner wall of the conical discharge port.

[0016] Preferably, the outer arc surface of the feeding bin is also sleeved with a heating jacket for heating the plastic raw material solution inside the feeding bin.

[0017] Preferably, the stuffing mechanism includes a stuffing box, which is arranged on the top surface of the placement rack, and the placement rack is arranged on the top surface of the base frame at the end of the feeding bin away from the conical discharge port. The top surface of the stuffing box is provided with a stirring motor, and a stirring rod is also rotatably provided inside the stuffing box. The top end of the stirring rod passes through the top surface of the stuffing box and is keyed to the output shaft of the stirring motor.

[0018] Preferably, a stuffing pipe is provided through the top surface of the stuffing box located on the side of the stirring motor, and the lower outer arc surface of the stuffing box is also connected to the feeding bin through a feeding pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model is provided with a liftable scraper rack inside the cooling box, so as to scrape off the colloidal impurities on the inner wall of the cooling box by the scraper rack, so that workers can regularly clean the impurities on the inner wall of the cooling box. At the same time, a filter plate is provided inside the scraper rack, and a cleaning component is provided above the filter plate, so as to scrape off the impurities on the surface of the filter plate by the cleaning component, so that workers can clean it conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the scraper frame of the utility model located inside the cooling box;

[0023] Figure 3 This is a structural diagram of the utility model scraper frame in a raised state;

[0024] Figure 4 This is a schematic diagram of the cross-section structure of the feeding mechanism and the filling mechanism of the utility model.

[0025] In the figure: 1. Base frame; 2. Feeding mechanism; 3. Filling mechanism; 4. Cooling mechanism; 5. Cooling box; 6. Bracket; 7. Threaded rod; 8. Servo motor; 9. Lifting frame; 10. Guide rod; 11. Scraper frame; 12. Filter plate; 13. Mounting frame; 14. Slide; 15. Placement frame; 16. Slider; 17. Scraper; 18. Feeding bin; 19. Rotating motor; 20. Auger; 21. Heating jacket; 22. Rotating frame; 23. Scraper; 24. Discharge pipe; 25. Filling box; 26. Stirring motor; 27. Stirring rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1 to 4 The utility model provides an extruder, comprising a base frame 1, a feeding mechanism 2, a filling mechanism 3 and a cooling mechanism 4. The base frame 1 is sleeved on the outside of the feeding mechanism 2, the filling mechanism 3 is arranged on one side of the base frame 1 and is connected to the feeding mechanism 2 through a discharge pipe 24, and the cooling mechanism 4 is arranged below the outer side of the feeding mechanism 2.

[0028] The cooling mechanism 4 includes a cooling box 5, a drive assembly and a scraper frame 11. The top surface of the scraper frame 11 is fixedly mounted on the lifting frame 9. The lifting frame 9 is sleeved on the outside of the drive assembly and is threadedly connected to the drive assembly. The four ends of the scraper frame 11 are respectively slidably connected to the inner wall of the cooling box 5. A filter plate 12 is also provided inside the scraper frame 11.

[0029] A cleaning assembly for cleaning the filter plate 12 is also provided on the top of the filter plate 12 .

[0030] In this embodiment, if Figure 2 As shown, the drive assembly includes a bracket 6 and a threaded rod 7. The brackets 6 are symmetrically arranged on the side walls of the cooling box 5. The top end of the threaded rod 7 passes through the top surface of the bracket 6 and is keyed to the output shaft of the servo motor 8. The servo motor 8 is bolted to the top surface of the bracket 6. The bottom end of the threaded rod 7 is fixed to the inner bottom surface of the bracket 6 through a bearing seat. One side of the lifting frame 9 is threadedly sleeved on the outside of the threaded rod 7.

[0031] By setting a servo motor 8 to drive the threaded rod 7 to rotate, the lifting frame 9 sleeved on the outside of the threaded rod 7 is lifted and lowered along the outer arc surface of the threaded rod 7, thereby driving the scraper frame 11 fixed below the lifting frame 9 to move upward from the inside of the cooling box 5, and scraping the colloidal impurities on the inner wall of the cooling box 5 to the surface of the filter plate 12 inside the scraper frame 11, and then scraping the filter plate 12 through the cleaning component, so that the workers can regularly clean the inside of the cooling box 5 to ensure the cleanliness of the inside of the cooling box 5.

[0032] In this embodiment, if Figure 2 As shown, the inner top surface and inner bottom surface of the other bracket 6 are fixedly mounted to the top end and bottom end of the guide rod 10 respectively, and the other side of the lifting frame 9 is sleeved on the outside of the guide rod 10 and is slidably connected to the outer arc surface of the guide rod 10.

[0033] A guide rod 10 is fixedly provided between the inner top and bottom surfaces of the other bracket 6, and the other end of the lifting frame 9 is sleeved on the outside of the guide rod 10 and is slidably connected to the guide rod 10, so that the direction of the lifting frame 9 when it is raised or lowered can be determined by the lifting frame 9, thereby increasing the stability of the lifting frame 9 when driving the scraper frame 11 to rise and fall.

[0034] In a further preferred embodiment, Figure 3 As shown, a blocking block is provided at the position where the outer arc surface of the threaded rod 7 is flush with the top surface of the cooling box 5. At the same time, a blocking block is also provided at the position where the outer arc surface of the threaded rod 7 is flush with the top surface of the cooling box 5 to ensure the position of the lifting frame 9 when it descends, so as to protect the scraper frame 11 below the lifting frame 9 and prevent the scraper frame 11 from driving the lifting frame 9 to descend under the rotation of the threaded rod 7 and causing damage to the equipment.

[0035] In a further preferred embodiment, Figure 3 As shown, the cleaning assembly includes a mounting frame 13, which is fixedly mounted on two symmetrical top surfaces of the scraper frame 11. A slide groove 14 is provided in the middle of the top surface of the mounting frame 13. The inner wall of the slide groove 14 is slidably connected to the slider 16. The bottom end of the slider 16 is located on the surface of the filter plate 12 and a scraper 17 is also provided. The bottom end of the scraper 17 is slidably connected to the surface of the filter plate 12.

[0036] A mounting frame 13 is provided on the top surface of the scraper frame 11, and a slide groove 14 is opened on the top surface of the mounting frame 13. A slider 16 is slidably provided inside the slide groove 14. The bottom end of the slider 16 is fixedly installed on the top surface of the scraper 17. The bottom end of the scraper 17 is slidably provided on the top surface of the filter plate 12, so that the worker can manually move the slider 16 to make the scraper 17 scrape the colloidal impurities remaining on the surface of the filter plate 12 to one side of the surface of the filter plate 12 so that the worker can clean it.

[0037] Further, such as Figure 4 As shown, the feeding mechanism 2 includes a feeding bin 18 and an auger 20. The base frame 1 is sleeved on the outer arc surface of the feeding bin 18, and a rotating motor 19 is provided on the side wall of the feeding bin 18 at one end away from the conical discharge port. One end of the auger 20 passes through the side wall of the feeding bin 18 and is keyed to the output shaft of the rotating motor 19. The end side wall of the auger 20 is rotatably connected to the inner wall of the feeding bin 18.

[0038] A rotatable auger 20 is provided inside the feeding bin 18 to extrude the raw materials entering the feeding bin 18 through the conical discharge port at the end of the feeding bin 18 and then pass through the cooling mechanism 4 to be cooled and shaped.

[0039] Furthermore, if Figure 4As shown, a rotating frame 22 is fixedly provided on the inner wall of the conical discharge port of the feeding bin 18 at the outer arc end of the auger 20, and a plurality of scrapers 23 are respectively provided on the side walls of the rotating frame 22 facing the conical discharge port, and the ends of the scrapers 23 are respectively slidably connected to the inner wall of the conical discharge port.

[0040] A rotatable scraper 23 is provided on the inner wall of the conical discharge port of the feeding bin 18 to scrape off the plastic solution raw material on the inner wall of the conical discharge port, thereby preventing the plastic solution raw material from clogging the conical discharge port of the feeding bin 18.

[0041] Preferably, Figure 4 As shown, the outer arc surface of the feeding bin 18 is also sleeved with a heating sleeve 21 for heating the plastic raw material solution inside the feeding bin 18, and a heating sleeve 21 is also sleeved on the outside of the feeding bin 18 to heat the plastic solution raw material inside the feeding bin 18 at a constant temperature through the heating sleeve 21 to prevent the solution from cooling and solidifying and being unable to be extruded.

[0042] In addition, if Figure 4 As shown, the filling mechanism 3 includes a stuffing box 25, which is arranged on the top surface of the placement rack 15, and the placement rack 15 is arranged on the top surface of the base frame 1 at the end of the feeding bin 18 away from the conical discharge port. The top surface of the stuffing box 25 is provided with a stirring motor 26, and the interior of the stuffing box 25 is also provided with a stirring rod 27 that is rotatable. The top end of the stirring rod 27 passes through the top surface of the stuffing box 25 and is keyed to the output shaft of the stirring motor 26.

[0043] A stuffing box 25 is also provided on the top surface of the base frame 1 on the side of the feeding bin 18 away from the discharge port, and a stirring rod 27 is also rotatably provided inside the stuffing box 25 so that the raw materials inside the stuffing box 25 can be stirred and mixed by the stirring rod 27. At the same time, a stuffing pipe is also provided on the top surface of the stuffing box 25 on the side of the stirring motor 26, and the lower outer arc surface of the stuffing box 25 is also connected to the feeding bin 18 through a discharge pipe 24, so that the plastic solution raw material inside the stuffing box 25 can enter the feeding bin 18 through the discharge pipe 24 and be extruded.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An extruder, comprising a chassis (1), characterized in that: It also includes a feeding mechanism (2), a filling mechanism (3) and a cooling mechanism (4), wherein the base frame (1) is sleeved on the outside of the feeding mechanism (2), the filling mechanism (3) is arranged on one side of the base frame (1) and is connected to the feeding mechanism (2) through a discharge pipe (24), and the cooling mechanism (4) is arranged below the outer side of the feeding mechanism (2) where the material is discharged; The cooling mechanism (4) comprises a cooling box (5), a driving assembly and a scraper frame (11); the top surface of the scraper frame (11) is fixedly mounted on a lifting frame (9); the lifting frame (9) is sleeved on the outside of the driving assembly and is threadedly connected to the driving assembly; the four ends of the scraper frame (11) are respectively slidably connected to the inner wall of the cooling box (5); and a filter plate (12) is further provided inside the scraper frame (11); A cleaning component for cleaning the filter plate (12) is also provided on the top of the filter plate (12).

2. An extruder according to claim 1, characterized in that: The driving assembly includes a bracket (6) and a threaded rod (7), the bracket (6) is symmetrically arranged on the side walls of the cooling box (5), the top end of the threaded rod (7) passes through the top surface of the bracket (6) and is keyed to the output shaft of the servo motor (8), the servo motor (8) is bolted to the top surface of the bracket (6), the bottom end of the threaded rod (7) is fixed to the inner bottom surface of the bracket (6) through a bearing seat, and one side of the lifting frame (9) is threadedly sleeved on the outside of the threaded rod (7).

3. An extruder according to claim 2, characterized in that: The inner top surface and the inner bottom surface of the other bracket (6) are fixedly mounted to the top end and the bottom end of the guide rod (10) respectively, and the other side of the lifting frame (9) is sleeved on the outside of the guide rod (10) and is slidably connected to the outer arc surface of the guide rod (10).

4. An extruder according to claim 3, characterized in that: A blocking block is provided at a position where the outer arc surface of the threaded rod (7) is flush with the top surface of the cooling box (5).

5. An extruder according to claim 4, characterized in that: The cleaning assembly includes a mounting frame (13), and the mounting frame (13) is fixedly mounted on two symmetrical top surfaces of the scraper frame (11). A slide groove (14) is provided in the middle of the top surface of the mounting frame (13). The inner wall of the slide groove (14) is slidably connected to a slider (16). The bottom end of the slider (16) is located on the surface of the filter plate (12) and is further provided with a scraper (17). The bottom end of the scraper (17) is slidably connected to the surface of the filter plate (12).

6. An extruder according to claim 1, characterized in that: The feeding mechanism (2) includes a feeding bin (18) and an auger (20), the base frame (1) is sleeved on the outer arc surface of the feeding bin (18), and a rotating motor (19) is provided on the side wall of the feeding bin (18) away from the conical discharge port, one end of the auger (20) passes through the side wall of the feeding bin (18) and is keyed to the output shaft of the rotating motor (19), and the end side wall of the auger (20) is rotatably connected to the inner wall of the feeding bin (18).

7. An extruder according to claim 6, characterized in that: The inner wall of the conical discharge port of the feeding bin (18) is located at the outer arc surface end of the auger (20) and is also fixedly provided with a rotating frame (22). The side walls of the rotating frame (22) facing the conical discharge port are respectively provided with a plurality of scrapers (23), and the ends of the scrapers (23) are respectively slidably connected to the inner wall of the conical discharge port.

8. An extruder according to claim 7, characterized in that: The outer arc surface of the feeding bin (18) is also sleeved with a heating sleeve (21) for heating the plastic raw material solution inside the feeding bin (18).

9. An extruder according to claim 8, characterized in that: The stuffing mechanism (3) includes a stuffing box (25), the stuffing box (25) is arranged on the top surface of the placement rack (15), the placement rack (15) is arranged on the top surface of the base frame (1) and is located at the end of the feeding bin (18) away from the conical discharge port, the top surface of the stuffing box (25) is provided with a stirring motor (26), and the interior of the stuffing box (25) is also rotatably provided with a stirring rod (27), the top end of the stirring rod (27) passes through the top surface of the stuffing box (25) and is key-connected to the output shaft of the stirring motor (26).

10. An extruder according to claim 9, characterized in that: The top surface of the stuffing box (25) is located on the side of the stirring motor (26) and is also provided with a stuffing pipe. The lower outer arc surface of the stuffing box (25) is also provided with a feeding bin (18) through a feeding pipe (24).

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