PP calcium powder filler mixing extruder

Abstract

The utility model discloses a PP calcium powder filler mixing extruder which comprises a machine frame, a machining table is fixedly arranged at the upper end of the machine frame, an extrusion barrel is arranged above the machining table, one side of the extrusion barrel is of an opening structure, a clamping frame is fixedly arranged outside the opening side of the extrusion barrel, the upper end of the clamping frame is of an opening structure, and the lower end of the clamping frame is of an opening structure. A connecting base is arranged in the clamping frame, the connecting base and the extrusion cylinder are sealed through a sealing ring, the connecting base is of a hollow structure, an extrusion head is fixedly arranged on one side of the connecting base and communicates with the connecting base, four telescopic cavities are formed in one side of the extrusion cylinder, one side of each telescopic cavity is of an opening structure, and the telescopic cavities are symmetrically arranged; and four positioning holes are formed in the connecting base, correspond to the telescopic cavities in position and are of a penetrating structure, and the structure solves the problems that the extrusion head is not convenient to replace, and extrusion barrels of different sizes are difficult to fix by the mounting frame.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to a PP calcium powder filler compounding extruder. Background Technology

[0002] A compounding extruder is a special type of screw extruder primarily used for the compounding and extrusion of materials. It utilizes the rotation of the screw and the interaction of the barrel to perform shearing, orientation, cutting, folding, and stretching actions on the material, achieving uniform dispersion and distribution. The compounded material is then extruded through the extruder head to form a shape. During operation, as the screw rotates, the material is drawn into the gap between the screw and the barrel, where it undergoes shearing, orientation, cutting, folding, and stretching actions, resulting in uniform mixing. Simultaneously, temperature control elements and melt temperature sensors on the barrel monitor the material temperature in real time, ensuring temperature control during the compounding process. PP and calcium carbonate powder are commonly used as raw materials in the production of desired products using compounding extruders.

[0003] For example, Chinese patent CN210880807U, entitled "A Mixing Extruder", includes a horizontally arranged extrusion cylinder. Inside the extrusion cylinder, a pair of meshing and co-rotating twin screws are arranged along the axial direction of the cylinder. The twin screws include, from front to back, a mixing zone for mixing multiple processing raw materials and a mixing zone for fusing multiple raw materials. The front end of the mixing zone is provided with a feeding port, and the front end of the mixing zone is connected to a crosslinking agent tank for adding crosslinking agent.

[0004] While the aforementioned existing technologies can extrude fillers, in practical use, on the one hand, extruder head replacement is not convenient enough. Usually, the extruder head is fixed to the extrusion cylinder with bolts, which requires disassembling and assembling the entire extruder head structure when changing to different extruder heads as needed, thus reducing the production efficiency of the extruded material. On the other hand, the mounting frame is difficult to fix extrusion cylinders of different sizes. Different extrusion cylinders need to be used together with the appropriate mounting frame, which means that extrusion cylinders of different sizes need to be installed on mounting frames of different sizes, thus reducing the adaptability of the mounting frame. Therefore, it does not meet the current needs. To address this, we propose a PP calcium powder filler compounding extruder. Utility Model Content

[0005] The purpose of this invention is to provide a PP calcium powder filler compounding extruder to solve the problems mentioned in the background art, such as the inconvenience of extrusion head replacement and the difficulty of fixing extrusion cylinders of different sizes with the mounting frame.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PP calcium powder filler compounding extruder, comprising a frame, a processing table fixedly mounted on the upper end of the frame, an extrusion cylinder mounted above the processing table, one side of the extrusion cylinder having an open structure, a snap-fit ​​frame fixedly mounted on the outside of the open side of the extrusion cylinder, the upper end of the snap-fit ​​frame having an open structure, a connecting seat mounted inside the snap-fit ​​frame, the connecting seat being sealed to the extrusion cylinder by a sealing ring, and the connecting seat having a hollow structure, an extrusion head fixedly mounted on one side of the connecting seat, the extrusion head communicating with the connecting seat, four telescopic cavities mounted inside one side of the extrusion cylinder, one side of the telescopic cavities having an open structure, and the telescopic cavities being symmetrically arranged, and four positioning holes mounted inside the connecting seat, the positioning holes corresponding to the positions of the telescopic cavities, and the positioning holes having a through structure.

[0007] Preferably, a telescopic rod is provided inside the telescopic cavity, and the telescopic rod slides in conjunction with the telescopic cavity. One end of the telescopic rod extends to the outside of the connecting seat through a positioning hole, and a return spring is fixedly provided at the other end of the telescopic rod. The other end of the return spring is fixedly connected to the inner wall of the telescopic cavity.

[0008] Preferably, mounting brackets are provided on both sides of the lower end of the extrusion cylinder, the mounting brackets are symmetrically arranged, and the mounting brackets are fixedly connected to the processing table. The front and rear ends of the upper end of the mounting bracket are provided with sliding grooves, the sliding grooves are through-type structures, and a clamping plate is provided at the upper end of the mounting bracket located at the opening of the sliding groove. The clamping plate is in contact with the extrusion cylinder, and a rubber pad is provided between the clamping plate and the extrusion cylinder. The rubber pad and the clamping plate are glued and fixed by a polymer adhesive.

[0009] Preferably, a threaded rod is fixedly provided at the lower end of the clamping plate, and the lower end of the threaded rod extends to the lower part of the mounting frame horizontal plate through a sliding groove. A nut is sleeved on the outside of the lower end of the threaded rod, and the nut contacts the mounting frame horizontal plate.

[0010] Preferably, an installation plate is fixedly provided on one side of the inside of the extrusion cylinder, a screw is provided at the middle position inside the extrusion cylinder, and the two sides of the screw are respectively rotatably connected to the installation plate and the inner wall of the extrusion cylinder. A feed hopper is fixedly provided on one side of the upper end of the extrusion cylinder, and the lower end of the feed hopper is connected to the inside of the extrusion cylinder.

[0011] Preferably, the extrusion cylinder is fixedly provided with six heating wires inside the screw outside, and the heating wires are distributed in a ring at equal intervals.

[0012] Preferably, a drive motor is fixedly installed on the other side of the outside of the extrusion cylinder, and the output shaft of the drive motor extends into the inside of the extrusion cylinder and is fixedly connected to the screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model allows for quick assembly and disassembly of the extruder head via a snap-fit ​​frame and telescopic rods. When the extruder head needs to be replaced, first turn off the drive motor. Then, the operator presses the four telescopic rods to move them into the telescopic cavity. At the same time, the return spring is compressed until the telescopic rods disengage from the positioning holes. Then, pull the mounting plate upwards to move the extruder head upwards in the snap-fit ​​frame until the telescopic rods on both sides of the upper end enter the positioning holes on both sides of the lower end. Then, press the telescopic rods on both sides of the upper end again to disengage them from the positioning holes. Then, continue to pull the mounting plate to remove it completely from the snap-fit ​​frame. Align the mounting plate of the new extruder head with the opening of the snap-fit ​​frame and push it into the snap-fit ​​frame. At this time, the lower end of the mounting plate squeezes the telescopic rods and moves them into the telescopic cavity. At the same time, the return spring is compressed. Repeat the steps of adjusting the telescopic rods and continue to move the mounting plate downwards until the telescopic rods on both sides of the upper end and the lower end enter the positioning holes on both sides of the upper end and the lower end, respectively. This improves the convenience of extruder head replacement.

[0015] (2) This utility model can fix extrusion cylinders of different sizes by means of threaded rod and sliding groove. When fixing extrusion cylinders of different sizes, first loosen the nut and pull the clamping plate to both sides of the mounting frame, and then place the extrusion cylinder at the center of the upper end of the mounting frame. At this time, the operator holds the clamping plate and pushes it so that the clamping plate moves towards the extrusion cylinder at the upper end of the mounting frame. At the same time, the threaded rod moves in the sliding groove until the clamping plate is moved to contact the side wall of the extrusion cylinder. At this time, the rubber pad contacts the side wall of the extrusion cylinder and causes compression. Then rotate the nut so that the nut moves upward on the threaded rod through the thread until the nut contacts the side wall of the mounting frame, so that the clamping plate compresses and fixes the extrusion cylinder, thereby improving the adaptability of the mounting frame to extrusion cylinders of different sizes.

[0016] (3) By providing a heating wire, this utility model can improve the fluidity of the PP and calcium carbonate powder mixed filler. When the filler is extruded, the heating wire is energized first. When the current flows through the heating wire which has its own resistance, the heating wire generates heat. The heat generated by the heating wire is transferred to the extrusion cylinder, which raises the temperature inside the extrusion cylinder. Then, the PP and calcium carbonate powder mixed filler is poured into the extrusion cylinder through the feed hopper. The heat inside the extrusion cylinder is transferred to the PP and calcium carbonate powder mixed filler. At this time, the temperature of the PP and calcium carbonate powder mixed filler increases and its fluidity is enhanced, thereby improving the extrusion efficiency of the PP and calcium carbonate powder mixed filler. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a front view of the internal structure of this utility model;

[0019] Figure 3 This is a side view of the internal structure of this utility model;

[0020] Figure 4 This is a three-dimensional view of the internal structure of the telescopic cavity of this utility model.

[0021] In the diagram: 1. Frame; 2. Processing table; 3. Mounting frame; 4. Slide groove; 5. Clamping plate; 6. Threaded rod; 7. Nut; 8. Extrusion cylinder; 9. Feed hopper; 10. Drive motor; 11. Snap-fit ​​frame; 12. Connecting seat; 13. Extrusion head; 14. Positioning hole; 15. Telescopic rod; 16. Mounting plate; 17. Screw; 18. Heating wire; 19. Rubber pad; 20. Telescopic cavity; 21. Return spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a PP calcium powder filler compounding extruder, including a frame 1. A processing table 2 is fixedly installed on the upper end of the frame 1. An extrusion cylinder 8 is installed above the processing table 2. One side of the extrusion cylinder 8 is open. A snap-fit ​​frame 11 is fixedly installed on the outside of the open side of the extrusion cylinder 8. The upper end of the snap-fit ​​frame 11 is open. A connecting seat 12 is installed inside the snap-fit ​​frame 11. The connecting seat 12 is sealed to the extrusion cylinder 8 by a sealing ring. The connecting seat 12 is hollow. A [missing information - likely a component or material] is fixedly installed on one side of the connecting seat 12. An extrusion head 13 is connected to a connecting seat 12. An installation plate 16 is fixedly installed on one side inside the extrusion cylinder 8. A screw 17 is installed at the middle position inside the extrusion cylinder 8. The two sides of the screw 17 are rotatably connected to the installation plate 16 and the inner wall of the extrusion cylinder 8, respectively. A feed hopper 9 is fixedly installed on one side of the upper end of the extrusion cylinder 8. The lower end of the feed hopper 9 is connected to the inside of the extrusion cylinder 8. A drive motor 10 is fixedly installed on the other side of the outside of the extrusion cylinder 8. The output shaft of the drive motor 10 extends into the inside of the extrusion cylinder 8 and is fixedly connected to the screw 17.

[0024] Please see Figure 1 , Figure 2 and Figure 4The extrusion cylinder 8 has four telescopic cavities 20 inside one side. One side of each telescopic cavity 20 is open and they are symmetrically arranged. The connecting seat 12 has four positioning holes 14 inside. The positioning holes 14 correspond to the positions of the telescopic cavities 20 and are through holes. The telescopic cavities 20 have a telescopic rod 15 inside. The telescopic rod 15 slides with the telescopic cavity 20. One end of the telescopic rod 15 extends to the outside of the connecting seat 12 through the positioning hole 14. The other end of the telescopic rod 15 is fixedly equipped with a return spring 21. The other end of the return spring 21 is fixedly connected to the inner wall of the telescopic cavity 20, which facilitates quick assembly and disassembly of the connecting seat 12 through the telescopic rod 15 and the snap-fit ​​frame 11.

[0025] Please see Figure 1 and Figure 3 Mounting brackets 3 are provided on both sides of the lower end of the extrusion cylinder 8. The mounting brackets 3 are symmetrically arranged and fixedly connected to the processing table 2. The front and rear ends of the upper end of the mounting bracket 3 are provided with sliding grooves 4. The sliding grooves 4 have a through structure. A clamping plate 5 is provided at the upper end of the mounting bracket 3 at the opening of the sliding groove 4. The clamping plate 5 contacts the extrusion cylinder 8. A rubber pad 19 is provided between the clamping plate 5 and the extrusion cylinder 8. The rubber pad 19 is fixed to the clamping plate 5 with a polymer adhesive. A threaded rod 6 is fixedly provided at the lower end of the clamping plate 5. The lower end of the threaded rod 6 extends to the lower part of the horizontal plate of the mounting bracket 3 through the sliding groove 4. A nut 7 is sleeved on the outside of the lower end of the threaded rod 6. The nut 7 contacts the horizontal plate of the mounting bracket 3, which facilitates the adjustment of the position of the clamping plate 5 through the threaded rod 6 and the sliding groove 4.

[0026] Please see Figure 3 The extrusion cylinder 8 is located inside the screw 17 and has six heating wires 18 fixedly installed inside. The heating wires 18 are distributed in a ring at equal intervals to facilitate heating of the filler material through the heating wires 18.

[0027] Working principle: When it is necessary to replace the extruder head 13, first turn off the drive motor 10. At this time, the operator presses the four telescopic rods 15, causing the telescopic rods 15 to move into the telescopic cavity 20. At the same time, the return spring 21 is in a compressed state until the telescopic rods 15 disengage from the positioning holes 14. Then, pull the mounting plate 16 upward, causing the mounting plate 16 to drive the extruder head 13 upward in the snap-fit ​​frame 11 until the telescopic rods 15 on both sides of the upper end enter the positioning holes 14 on both sides of the lower end. Then, press the telescopic rods 15 on both sides of the upper end again, causing the upper sides to extend and retract. Rod 15 disengages from positioning hole 14. Continue pulling mounting plate 16 until it is completely removed from snap-fit ​​frame 11. Align mounting plate 16 of new extrusion head 13 with the opening of snap-fit ​​frame 11 and push it into snap-fit ​​frame 11. At this point, the lower end of mounting plate 16 presses against telescopic rod 15, causing it to move into telescopic cavity 20. Simultaneously, return spring 21 is compressed. Repeat the steps of adjusting telescopic rod 15 and continue moving mounting plate 16 downwards until the telescopic rods 15 on both the upper and lower ends are respectively inserted into the positioning holes 14 on both upper ends. In the positioning holes 14 on both sides of the lower end, when fixing extrusion cylinders 8 of different sizes, first loosen the nut 7 and pull the clamping plate 5 to both sides of the mounting frame 3, then place the extrusion cylinder 8 at the center position of the upper end of the mounting frame 3. At this time, the operator holds the clamping plate 5 and pushes it, so that the clamping plate 5 moves towards the extrusion cylinder 8 at the upper end of the mounting frame 3. At the same time, the threaded rod 6 moves in the slide groove 4 until the clamping plate 5 is moved to contact the side wall of the extrusion cylinder 8. At this time, the rubber pad 19 contacts the side wall of the extrusion cylinder 8 and causes compression. Then rotate the nut 7 so that the nut 7 passes through the thread. The threaded rod 6 moves upward until the nut 7 contacts the side wall of the mounting bracket 3, so that the clamping plate 5 squeezes and fixes the extrusion cylinder 8. When the filler is extruded, the heating wire 18 is energized first. When the current flows through the heating wire 18 which has its own resistance, the heating wire 18 generates heat. The heat generated by the heating wire 18 is transferred to the extrusion cylinder 8, which raises the temperature inside the extrusion cylinder 8. At this time, the filler mixed with PP and calcium carbonate powder is poured into the extrusion cylinder 8 through the feed hopper 9. The heat inside the extrusion cylinder 8 is transferred to the filler mixed with PP and calcium carbonate powder.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A PP calcium carbonate filler compounder extruder comprising a frame (1), characterized in that: The upper end of the rack (1) is fixedly provided with a processing table (2), an extrusion cylinder (8) is arranged above the processing table (2), one side of the extrusion cylinder (8) is of an open structure, a clamping frame (11) is fixedly arranged outside the open side of the extrusion cylinder (8), the upper end of the clamping frame (11) is of an open structure, a connecting seat (12) is arranged inside the clamping frame (11), the connecting seat (12) is sealed with the extrusion cylinder (8) through a sealing ring, the connecting seat (12) is of a hollow structure, an extrusion head (13) is fixedly arranged on one side of the connecting seat (12), the extrusion head (13) is communicated with the connecting seat (12), four telescopic cavities (20) are arranged inside one side of the extrusion cylinder (8), one side of the telescopic cavity (20) is of an open structure, and the telescopic cavities (20) are symmetrically arranged, four positioning holes (14) are arranged inside the connecting seat (12), the positioning holes (14) correspond to the telescopic cavities (20) in position, and the positioning holes (14) are of a penetrating structure; A telescopic rod (15) is arranged inside the telescopic cavity (20), the telescopic rod (15) is in sliding fit with the telescopic cavity (20), one end of the telescopic rod (15) extends to the outside of the connecting seat (12) through the positioning hole (14), and the other end of the telescopic rod (15) is fixedly provided with a reset spring (21), the other end of the reset spring (21) is fixedly connected with the inner wall of the telescopic cavity (20).

2. A PP calcium powder filling material mixing extruder according to claim 1, characterized in that: Mounting racks (3) are arranged on both sides of the lower end of the extrusion cylinder (8), the mounting racks (3) are symmetrically arranged, the mounting racks (3) are fixedly connected with the processing table (2), sliding grooves (4) are arranged inside the front end and the rear end of the upper end of the mounting rack (3), the sliding grooves (4) are of a penetrating structure, clamping plates (5) are arranged on the upper end of the mounting rack (3) at the opening positions of the sliding grooves (4), the clamping plates (5) are in contact with the extrusion cylinder (8), rubber pads (19) are arranged between the clamping plates (5) and the extrusion cylinder (8), and the rubber pads (19) are fixedly attached to the clamping plates (5) through a high-molecular adhesive.

3. A PP calcium powder filler compound mixing extruder according to claim 2, characterized in that: Threaded rods (6) are fixedly arranged at the lower ends of the clamping plates (5), the lower ends of the threaded rods (6) extend to below the horizontal plate of the mounting rack (3) through the sliding grooves (4), nuts (7) are sleeved and arranged outside the lower ends of the threaded rods (6), and the nuts (7) are in contact with the horizontal plate of the mounting rack (3).

4. A PP calcium powder filling material mixing extruder according to claim 3, characterized in that: An installation plate (16) is fixedly arranged on one side inside the extrusion cylinder (8), a screw rod (17) is arranged at the middle position inside the extrusion cylinder (8), the screw rod (17) is rotatably connected with the inner wall of the extrusion cylinder (8) and the installation plate (16) on both sides, an inlet hopper (9) is fixedly arranged on one side of the upper end of the extrusion cylinder (8), and the lower end of the inlet hopper (9) is communicated with the inside of the extrusion cylinder (8).

5. A PP calcium powder filler compound mixing extruder according to claim 4, characterized in that: Six heating wires (18) are fixedly arranged inside the extrusion cylinder (8) outside the screw rod (17), and the heating wires (18) are annularly and equidistantly distributed.

6. A PP calcium powder filler compound mixing extruder according to claim 5, characterized in that: A driving motor (10) is fixedly arranged on the other side outside the extrusion cylinder (8), and the output shaft of the driving motor (10) extends to the inside of the extrusion cylinder (8) and is fixedly connected with the screw rod (17).

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