A fluoroplastic article forming extruder

Abstract

The utility model relates to fluorine plastic product processing field discloses a fluorine plastic product forming extruder, include: as the connecting plate of support main part, the top fixed connection of connecting plate has the storage bucket, the bottom fixed connection of storage bucket has the blanking tube, the front end fixed connection of blanking tube has the connecting support, the inner wall sliding connection of connecting support has the slide rod, the rear end fixed connection of slide rod has the push board, be provided with the spring between the inner wall of connecting support and slide rod, the front end fixed connection of connecting support has the fixed plate, the right -hand member fixed connection of fixed plate has first motor. In the utility model, through starting first motor and driving the rotation of rotating lever, rotating lever drives the rotation of cam, cam moves when driving the rotation of cam to the convex surface, slide rod moves, and slide rod drives push board to move and pushes material, thereby avoiding material to accumulate and jam at the feeding hopper, ensuring that fluorine plastic granule or powder can enter extruder smoothly.

Description

Technical Field

[0001] This utility model relates to the field of fluoroplastic product processing, and in particular to a fluoroplastic product molding extruder. Background Technology

[0002] Fluoroplastics, as a class of high-performance materials composed of carbon and fluorine atoms, occupy an indispensable position in many high-end fields due to their excellent chemical stability, extremely low coefficient of friction, and resistance to corrosion in extreme acid, alkali and solvent environments. In the field of fluoroplastics processing, molding extruders play an extremely important role.

[0003] The characteristics of fluoroplastic granules or powders make them prone to accumulation in hoppers. In particular, the small size of polytetrafluoroethylene dispersion resin particles easily clogs the hopper's discharge port. To avoid material shortage, operators often fill the hopper with a large amount of powder, which causes the powder at the bottom of the hopper, especially at the discharge port, to accumulate tightly due to excessive pressure, further aggravating the blockage. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fluoroplastic product molding extruder. The extruder uses a first motor to drive a rotating rod, which in turn drives a cam. When the cam rotates to its convex surface, it moves a sliding rod, which in turn moves a push plate to push the material. This prevents material from accumulating and clogging at the feed hopper, ensuring that fluoroplastic particles or powder can smoothly enter the extruder.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A fluoroplastic product molding extruder includes: a connecting plate serving as a supporting body; a storage tank fixedly connected to the top of the connecting plate; a discharge pipe fixedly connected to the bottom of the storage tank; a connecting frame fixedly connected to the front end of the discharge pipe; a slide rod slidably connected to the inner wall of the connecting frame; a push plate fixedly connected to the rear end of the slide rod; a spring disposed between the inner wall of the connecting frame and the slide rod; a fixing plate fixedly connected to the front end of the connecting frame; a first motor fixedly connected to the right end of the fixing plate; a rotating rod fixedly connected to the drive end of the first motor through the fixing plate; a cam fixedly connected to the left end of the rotating rod; an extrusion pipe fixedly connected to the top of the connecting plate; a second motor fixedly connected to the left end of the extrusion pipe; an auger fixedly connected to the drive end of the second motor through the extrusion pipe; a heating pipe connected to the extrusion pipe by bolts; and an extrusion die connected to the heating pipe via a disassembly assembly.

[0006] Furthermore, the bottom end of the feeding tube is fixedly connected to the top end of the extrusion tube, and the outer wall of the slide rod is slidably connected to the inner wall of the feeding tube.

[0007] Furthermore, the outer wall of the rotating rod is rotatably connected to the inner wall of the fixed plate, and the outer wall of the auger is rotatably connected to the inner wall of the extrusion pipe.

[0008] Furthermore, one end of the spring is connected to the slide rod, and the other end of the spring is connected to the inner wall of the connecting frame.

[0009] Furthermore, a rotating ring is fixedly connected to each opposite end of the mating plate, and the inner wall of the rotating ring is rotatably connected to the outer wall of the screw.

[0010] Furthermore, a rotating ring is fixedly connected to each opposite end of the mating plate, and the inner wall of the rotating ring is rotatably connected to the outer wall of the screw.

[0011] Furthermore, the inner wall of the mounting plate is provided with fixing holes corresponding to the insertion blocks.

[0012] Furthermore, limiting rods are fixedly connected to both sides of the opposite end of the mating plate, and the outer walls of the limiting rods are slidably connected to the inner wall of the fixing frame.

[0013] This utility model has the following beneficial effects: In this invention, the first motor is started to drive the rotating rod to rotate, the rotating rod drives the cam to rotate, and when the cam rotates to the convex surface, it drives the sliding rod to move. The sliding rod drives the push plate to move and push the material, thereby avoiding the accumulation and blockage of material at the feed hopper and ensuring that fluoroplastic particles or powder can enter the extruder smoothly.

[0014] In this invention, the rotating screw drives the rotating ring to move, the rotating ring drives the mating plate to move, and the mating plate drives the insert block to disengage from the fixing hole, and then the extrusion die is removed and replaced. This saves the time of changing the die and allows the equipment to be put into new production tasks more quickly. Attached Figure Description

[0015] Figure 1 This is an isometric view of a fluoroplastic product molding extruder proposed in this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the feed pipe of a fluoroplastic product molding extruder proposed in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the extrusion tube of a fluoroplastic product molding extruder proposed in this utility model. Figure 4 This is a schematic diagram of the internal structure of the fixing frame of a fluoroplastic product molding extruder proposed in this utility model; Figure 5 This is a schematic diagram of the fixing hole structure of a fluoroplastic product molding extruder proposed in this utility model.

[0016] Legend: 1. Connecting plate; 2. Storage hopper; 3. Feeding pipe; 4. Connecting frame; 5. Fixing plate; 6. First motor; 7. Rotating rod; 8. Cam; 9. Slide rod; 10. Push plate; 11. Spring; 12. Extrusion pipe; 13. Second motor; 14. Screw; 15. Heating tube; 16. Fixing frame; 17. Screw; 18. Rotary ring; 19. Mating plate; 20. Insert block; 21. Limiting rod; 22. Mounting plate; 23. Fixing hole; 24. Extrusion die. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a fluoroplastic product molding extruder, comprising: a connecting plate 1 serving as a supporting body; a storage tank 2 fixedly connected to the top of the connecting plate 1; a feeding pipe 3 fixedly connected to the bottom of the storage tank 2; a connecting frame 4 fixedly connected to the front end of the feeding pipe 3; a sliding rod 9 slidably connected to the inner wall of the connecting frame 4; a push plate 10 fixedly connected to the rear end of the sliding rod 9; a spring 11 provided between the connecting frame 4 and the inner wall of the sliding rod 9; a fixing plate 5 fixedly connected to the front end of the connecting frame 4; a first motor 6 fixedly connected to the right end of the fixing plate 5; a rotating rod 7 fixedly connected to the driving end of the first motor 6 through the fixing plate 5; and a cam fixedly connected to the left end of the rotating rod 7. 8. The top end of the connecting plate 1 is fixedly connected to the extrusion pipe 12. The left end of the extrusion pipe 12 is fixedly connected to the second motor 13. The drive end of the second motor 13 passes through the extrusion pipe 12 and is fixedly connected to the auger 14. The extrusion pipe 12 is connected to the heating pipe 15 by bolts. The heating pipe 15 is connected to the extrusion mold 24 by the disassembly assembly. The bottom end of the discharge pipe 3 is fixedly connected to the top end of the extrusion pipe 12. The outer wall of the slide rod 9 is slidably connected to the inner wall of the discharge pipe 3. The outer wall of the rotating rod 7 is rotatably connected to the inner wall of the fixed plate 5. The outer wall of the auger 14 is rotatably connected to the inner wall of the extrusion pipe 12. One end of the spring 11 is connected to the slide rod 9, and the other end of the spring 11 is connected to the inner wall of the connecting frame 4.

[0019] Specifically, in its material storage and feeding process, the carefully designed storage tank 2 undertakes the important task of storing fluoroplastic granules or powders. When production starts and fluoroplastics need to be fed into the extrusion pipe 12, the first motor 6 is immediately turned on. The drive end of the first motor 6 rotates at high speed, driving the connected rotating rod 7 to rotate synchronously. The rotation of the rotating rod 7 causes the cam 8 installed at its end to begin circular motion. The unique shape design of the cam 8 plays a key role. When the cam 8 rotates to the point where the convex surface faces upward, the slide rod 9, which is in contact with the convex surface, moves smoothly along the predetermined track under the push of the cam 8. The movement of cam 9 causes the pusher plate 10, which is fixedly connected to it, to move synchronously. The pusher plate 10 moves forward, powerfully pushing the fluoroplastic material in the storage tank 2 near the discharge port. In this way, the material is effectively prevented from accumulating and blocking near the inlet, ensuring that the fluoroplastic granules or powder can move continuously and smoothly towards the extrusion tube 12, providing a stable material supply for subsequent processing stages. When cam 8 rotates to the point where the circular surface faces upward, the spring 11 installed between slide rod 9 and pusher plate 10 comes into play. With its own elastic potential energy, spring 11 quickly rebounds, driving the pusher plate... 10. Reset, wait for the next convex push of cam 8, and repeat this cycle to maintain a stable feeding rhythm. Then, the fluoroplastic material entering the extrusion tube 12 begins a new processing process after the second motor 13 starts. The drive end of the second motor 13 rotates, driving the auger 14 connected to the drive end to start rotating at high speed. During the rotation, the spiral blades of the auger 14 continuously contact and apply force to the fluoroplastic material, continuously pushing the material forward along the axial direction of the extrusion tube 12. In this process, the material gradually completes the initial compaction and conveying within the extrusion tube 12. In preparation for the subsequent heating and plasticizing process, when the fluoroplastic material is transported to the heating tube 15, it enters the critical heating and plasticizing stage. Multiple heating elements are evenly distributed on the inner wall of the heating tube 15. These heating elements work together to release a large amount of heat into the surrounding space. The heat is rapidly transferred to the fluoroplastic material inside the heating tube 15 through heat conduction, causing the material temperature to rise sharply. As the temperature rises, the fluoroplastic gradually changes from a solid state to a molten state, realizing the plasticizing process. Under the action of extrusion pressure, it is pushed to the extrusion mold 24 for molding.

[0020] Reference Figure 1 , Figure 4 and Figure 5The disassembly assembly includes a fixing bracket 16 fixedly connected to both sides of the outer wall of the heating tube 15. The inner wall of the fixing bracket 16 is threaded with a screw 17. The opposite end of the screw 17 is provided with a mating plate 19. The opposite end of the mating plate 19 is fixedly connected with an insert block 20. The outer wall of the extrusion mold 24 is fixedly connected with a mounting plate 22. The opposite end of the mating plate 19 is fixedly connected with a rotating ring 18. The inner wall of the rotating ring 18 is rotatably connected to the outer wall of the screw 17. The inner wall of the mounting plate 22 is provided with a fixing hole 23 corresponding to the insert block 20. The opposite end of the mating plate 19 is fixedly connected with a limit rod 21. The outer wall of the limit rod 21 is slidably connected to the inner wall of the fixing bracket 16.

[0021] Specifically, when the molding die needs to be replaced, the operation process is convenient and efficient. The operator rotates the screw 17, and the rotation of the screw 17, due to its threaded structure, drives the mating ring 18 to move smoothly along a predetermined axis. During the movement, the ring 18 is closely connected with the mating plate 19, thereby pulling the mating plate 19 to move synchronously. The mating plate 19 moves forward, causing the insert 20 installed at its end to gradually disengage from the fixing hole 23 on the fixing frame 16. When the insert 20 is completely disengaged from the fixing hole 23, the extrusion die 24 is released from mechanical locking with the fixing frame 16. At this time, the operator can easily extrude the die. The mold 24 is removed, and replacement work can then begin. This simple and efficient disassembly method significantly shortens the time required for mold replacement, greatly improves equipment utilization efficiency, and allows the equipment to be put into new production tasks in the shortest possible time, effectively reducing production capacity losses caused by equipment downtime. In the installation of the new mold, the operator first precisely inserts the mounting plate 22 of the compatible extrusion mold 24 into the pre-set mounting slot of the fixing frame 16, ensuring that the mounting plate 22 and the fixing frame 16 initially fit together. Then, the screw 17 is rotated in the opposite direction. The reverse rotation of the screw 17 again drives the rotating ring 18 to move in the opposite direction. The moving traction plate 19 of screw 18 moves synchronously back, causing the insert 20 to gradually approach the fixing hole 23. As screw 17 continues to rotate, insert 20 is precisely inserted into fixing hole 23, completing the fixed installation of extrusion die 24. The stable connection provides a solid guarantee for subsequent production operations. It is worth mentioning that during the entire process of moving the traction plate 19, the limiting rod 21 plays a key role. One end of the limiting rod 21 is firmly connected to the traction plate 19, while the other end slides in the limiting groove preset inside the fixing frame 16. When the traction plate 19 moves under the drive of the rotating ring 18, the limiting rod 21 moves accordingly. The heating element slides smoothly within the limiting groove. The presence of the limiting rod 21 effectively restricts the movement direction of the mating plate 19, preventing it from shifting or shaking during movement. After the equipment has been running for a period of time, if the heating element 15 needs to be inspected and maintained, the operation is equally simple and direct. The heating element 15 is fixedly connected to the surrounding components by multiple bolts. The operator only needs to use appropriate tools and turn these bolts in the prescribed order to remove the heating element 15 from the main body of the equipment. This allows the operator to quickly and efficiently inspect, clean, or replace the heating element 15, maintaining the stable operation of the equipment.

[0022] Working principle: When processing is required, fluoroplastic is fed from the storage tank 2 into the extrusion tube 12. During feeding, the first motor 6 is started, and its drive end rotates, driving the rotating rod 7 to rotate. The rotating rod 7 then drives the cam 8 to rotate. When the cam 8 rotates to the convex surface, it drives the sliding rod 9 to move. The sliding rod 9 then drives the push plate 10 to move, pushing the material and preventing material accumulation and blockage at the feed hopper. This ensures that fluoroplastic granules or powder can smoothly enter the extruder. When the cam 8 rotates to the circular surface, the spring 11 drives the push plate 10 to reset. When the material falls into the extrusion tube 12, the second motor 13 is started, and its drive end rotates, driving the auger 14 to rotate. The auger 14 then moves the material. When the material reaches the position of the heating tube 15, it is heated and then extruded through the extrusion die 24 for shaping. Multiple heaters are installed on the inner wall. When the molding die needs to be replaced, the screw 17 is rotated to move the rotating ring 18. When the rotating ring 18 moves, the mating plate 19 moves. When the mating plate 19 moves, the insert block 20 disengages from the fixing hole 23. At this time, the extrusion die 24 can be removed for replacement, which can save the time of die replacement and allow the equipment to be put into new production tasks more quickly. During installation, the mounting plate 22 is inserted into the fixing frame 16. Then, the screw 17 is rotated to move the insert block 20 into the fixing hole 23 for fixation. When the mating plate 19 moves, it will move the limiting rod 21. When the limiting rod 21 moves, it will slide inside the fixing frame 16. The limiting rod 21 improves the stability of the mating plate 19 during movement. When the heating tube 15 needs to be inspected, it can be disassembled by rotating the bolts on it.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fluoroplastic product molding extruder, characterized in that, include: The connecting plate (1), which serves as the main support, has a storage tank (2) fixedly connected to its top end. A discharge pipe (3) is fixedly connected to the bottom end of the storage tank (2). A connecting frame (4) is fixedly connected to the front end of the discharge pipe (3). A sliding rod (9) is slidably connected to the inner wall of the connecting frame (4). A push plate (10) is fixedly connected to the rear end of the sliding rod (9). A spring (11) is provided between the inner wall of the connecting frame (4) and the sliding rod (9). A fixing plate (5) is fixedly connected to the front end of the connecting frame (4). A first [unclear - possibly a device or mechanism] is fixedly connected to the right end of the fixing plate (5). The first motor (6) has a drive end that passes through the fixed plate (5) and is fixedly connected to a rotating rod (7). The left end of the rotating rod (7) is fixedly connected to a cam (8). The top end of the connecting plate (1) is fixedly connected to an extrusion tube (12). The left end of the extrusion tube (12) is fixedly connected to a second motor (13). The drive end of the second motor (13) passes through the extrusion tube (12) and is fixedly connected to an auger (14). The extrusion tube (12) is connected to a heating tube (15) by bolts. The heating tube (15) is connected to an extrusion die (24) by a disassembly assembly.

2. The fluoroplastic product molding extruder according to claim 1, characterized in that: The bottom end of the feeding pipe (3) is fixedly connected to the top end of the extrusion pipe (12), and the outer wall of the slide rod (9) is slidably connected to the inner wall of the feeding pipe (3).

3. The fluoroplastic product molding extruder according to claim 1, characterized in that: The outer wall of the rotating rod (7) is rotatably connected to the inner wall of the fixed plate (5), and the outer wall of the auger (14) is rotatably connected to the inner wall of the extrusion pipe (12).

4. The fluoroplastic product molding extruder according to claim 1, characterized in that: One end of the spring (11) is connected to the slide rod (9), and the other end of the spring (11) is connected to the inner wall of the connecting frame (4).

5. The fluoroplastic product molding extruder according to claim 1, characterized in that: The disassembly assembly includes a fixing frame (16) fixedly connected to both sides of the outer wall of the heating tube (15). The inner wall of the fixing frame (16) is threaded with a screw (17). A mating plate (19) is provided at the opposite end of the screw (17). A plug (20) is fixedly connected at the opposite end of the mating plate (19). An installation plate (22) is fixedly connected to both sides of the outer wall of the extrusion mold (24).

6. The fluoroplastic product molding extruder according to claim 5, characterized in that: The opposite ends of the mating plate (19) are fixedly connected to a rotating ring (18), and the inner wall of the rotating ring (18) is rotatably connected to the outer wall of the screw (17).

7. The fluoroplastic product molding extruder according to claim 5, characterized in that: The inner wall of the mounting plate (22) is provided with fixing holes (23) corresponding to the insert (20).

8. The fluoroplastic product molding extruder according to claim 5, characterized in that: Limiting rods (21) are fixedly connected to both sides of the opposite end of the mating plate (19), and the outer walls of the limiting rods (21) are slidably connected to the inner wall of the fixing frame (16).

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