Plastic pellet compression apparatus

Abstract

The utility model discloses a plastic particle compression equipment, include: compression bin, the upper end one side outer wall of compression bin is provided with the feed passageway of intercommunication in the compression bin inner chamber, and the outer wall of the lower extreme of compression bin is seted up to have the blanking hole, compression mechanism is set up in the inside of compression bin, and the compression mechanism includes spiral conveying rod, and the axle rod rotation is installed in the compression bin inside, and the spiral blade edge of spiral conveying rod and compression bin inner wall gap fit, and the top of compression bin is equipped with motor for driving spiral conveying rod rotation to compress plastic particle and discharge from the blanking hole. The compact structure of compressed plastic particle, is not easy to produce raising dust in the storage and transportation, has improved the working environment, has reduced air pollution, is favorable to the health of operator.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic pellet processing equipment, specifically plastic pellet compression equipment. Background Technology

[0002] Plastic granules are fine granular substances made from plastic raw materials through processes such as crushing, melting, extrusion, and pelletizing. They come in a variety of colors (such as white, transparent, and colored) and can be classified into various types such as PE, PP, PS, and PVC depending on the raw materials. They are characterized by convenient transportation, easy storage, and good melt processing properties. They are the basic raw materials for plastic molding processes such as injection molding, blow molding, and extrusion, and are widely used in the production of plastic products.

[0003] However, during the storage and transportation of plastic granules, loose plastic granules take up a lot of space, have high transportation costs, and are prone to dust and scattering. For enterprises, transporting the same weight of plastic with compressed granules results in a smaller volume, lower transportation costs, and increased profit margins.

[0004] Therefore, we need to propose plastic pellet compression equipment. Utility Model Content

[0005] The purpose of this invention is to provide a plastic granule compression device. The compressed plastic granules have a compact structure, are less prone to dust generation during storage and transportation, improve the working environment, reduce air pollution, and are beneficial to the health of operators, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: Plastic pellet compression equipment includes: A compression chamber, wherein a feeding channel communicating with the inner cavity of the compression chamber is provided on the outer wall of the upper end, and a discharge hole is provided on the outer wall of the lower end of the compression chamber; A compression mechanism is located inside the compression chamber. The compression mechanism includes a screw conveyor rod, the shaft of which is rotatably mounted inside the compression chamber. The edge of the screw conveyor rod's helical blades is clearance-fitted with the inner wall of the compression chamber. A motor is installed on the top of the compression chamber to drive the screw conveyor rod to rotate, compress the plastic granules, and discharge them from the discharge hole.

[0007] Preferably, multiple sets of discharge holes are equidistantly arranged around the outer wall of the compression chamber, and the discharge holes are designed to be inclined downwards to facilitate the extrusion of the compressed material.

[0008] Preferably, the compression chamber is cylindrical, and its inner wall is coated with polytetrafluoroethylene.

[0009] Preferably, it also includes a heating mechanism disposed on the outer wall of the compression chamber. The heating mechanism includes a jacket and an insulating rod. The jacket is located on the outer wall of the compression chamber and is coaxially disposed with the compression chamber. Multiple sets of insulating rods are equidistantly arranged around the inner cavity of the jacket. Electric heating wires are wound on the insulating rods to heat the plastic particles, thereby moderately softening the surface of the plastic particles and increasing the compression density.

[0010] Preferably, it also includes a cutting mechanism, which is disposed at the bottom of the compression chamber. The cutting mechanism includes a connecting arm, a fixed seat and a blade. The fixed seat is disposed at the end of the connecting arm and has a slot. The blade handle is inserted into the slot and fixed by a fixing screw. The blade handle and the slot have corresponding through holes for the fixing screw to pass through. The blade is vertically disposed and located on one side of the discharge port.

[0011] Preferably, the lower end of the shaft of the spiral conveyor extends to the outside of the bottom end of the compression chamber. A square locking block is provided at the lower end of the shaft. A threaded post is provided at the center of the bottom surface of the locking block. A collar is provided at the other end of the connecting arm. A locking hole adapted to the locking block is opened at the center of the collar. The height of the locking block is slightly less than the depth of the locking hole. A fastening sleeve is threaded on the threaded post to lock the collar onto the locking block. When the spiral conveyor rotates, it drives the blade to cut the compressed material extruded from the connecting hole.

[0012] Preferably, it also includes a receiving mechanism, which is located directly below the compression chamber. The receiving mechanism includes a receiving box, and a support is arranged around the outer wall of the compression chamber to support the compression chamber. The receiving box and the compression chamber are coaxially arranged. The diameter of the receiving box is 2-3 times that of the compression chamber. Cooling holes are distributed on the outer wall of the receiving box. The compressed material falls into the receiving box and is cooled by ventilation through the cooling holes to prevent sticking.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a spiral conveyor rod to compress plastic granules, significantly reducing their volume. When transporting the same weight of plastic, the compressed volume is smaller, effectively saving storage space, improving warehouse utilization, and reducing warehousing costs for enterprises. The reduced volume means that fewer transport vehicles or smaller transport spaces can be used to load the same weight of plastic granules during transportation, thereby reducing transportation costs and increasing profit margins for enterprises.

[0014] 2. The compressed plastic granules have a compact structure, which makes them less likely to generate dust during storage and transportation, improving the working environment, reducing air pollution, and benefiting the health of operators. The compact compression structure also makes the plastic granules less likely to scatter, reducing the risk of them entering the soil, water sources, and other environments, thus reducing environmental pollution and avoiding material loss due to scattering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the compression chamber of this utility model; Figure 3 This is a schematic diagram of the structure of the threaded column of this utility model; Figure 4 This is a schematic diagram of the connecting arm of this utility model.

[0016] In the diagram: 1. Compression chamber; 2. Support frame; 3. Feeding channel; 4. Motor; 5. Screw conveyor rod; 6. Discharge hole; 7. Jacket; 8. Insulating rod; 9. Heating wire; 10. Clamping block; 11. Threaded post; 12. Collar; 13. Clamping hole; 14. Connecting arm; 15. Fixing base; 16. Blade; 17. Fastening sleeve; 18. Receiving box; 19. Cooling hole. 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] Please see Figure 1-4 This utility model provides a technical solution: Plastic pellet compression equipment includes: Compression chamber 1, with a feeding channel 3 connected to the inner cavity of compression chamber 1 on the upper outer wall and a discharge hole 6 on the lower outer wall of compression chamber 1. A compression mechanism is installed inside the compression chamber 1. The compression mechanism includes a screw conveyor 5. The shaft of the screw conveyor 5 is rotatably installed inside the compression chamber 1. The edge of the screw blade of the screw conveyor 5 is clearance-fitted with the inner wall of the compression chamber 1. A motor 4 is installed on the top of the compression chamber 1 to drive the screw conveyor 5 to rotate, compress the plastic granules, and discharge them from the discharge hole 6.

[0019] Plastic granules enter the cylindrical compression chamber 1 through the feeding channel 3. The motor 4 drives the spiral conveyor 5 to rotate. The gap between the edge of the spiral blade and the chamber wall forms an extrusion space. The granules are pushed downward as the spiral blade rotates. Under the action of continuous extrusion pressure, the density increases and finally they are extruded from the discharge hole 6 at the bottom.

[0020] This technology compresses loose plastic granules into a dense state, solving the problem of traditional granules taking up a lot of space; it achieves the function of compressing plastic granules, compressing loose plastic granules into compact blocks, reducing their volume, and facilitating subsequent storage and transportation.

[0021] For a preferred embodiment, please refer to Figure 1-3 : Multiple sets of discharge holes 6 are equidistantly arranged around the outer wall of the compression chamber 1. The discharge holes 6 are designed to be inclined downwards to facilitate the extrusion of the compressed material.

[0022] The multiple sets of discharge holes 6 (hole diameter 10-20mm) that are equidistantly surrounding the lower outer wall of the compression chamber 1 adopt a downward inclined design (inclination angle 15°-30°). Under the combined action of the spiral thrust and gravity, the compressed plastic is smoothly extruded along the inclined holes, avoiding accumulation and blockage at the hole openings.

[0023] Increasing the number of discharge channels increases the discharge rate per unit time; the tilt angle reduces discharge resistance, ensuring uniform compressed material shape for easier subsequent processing.

[0024] For a preferred embodiment, please refer to Figure 1-3 : Compression chamber 1 is cylindrical, with its inner wall coated with polytetrafluoroethylene.

[0025] The cylindrical compression chamber 1 ensures uniform force distribution within the internal space, preventing material dead zones from forming at the edges and corners; the polytetrafluoroethylene coating (20-30μm thick) sprayed on the inner wall has a low coefficient of friction and non-stickiness, reducing the adhesion of plastic particles to the chamber wall.

[0026] It ensures uniform distribution of compression pressure and improves the consistency of compressed material density; the anti-stick coating reduces the frequency of bin cleaning and reduces maintenance time.

[0027] For a preferred embodiment, please refer to Figure 1-2 : It also includes a heating mechanism, which is set on the outer wall of the compression chamber 1. The heating mechanism includes a jacket 7 and an insulating rod 8. The jacket 7 is located on the outer wall of the compression chamber 1 and is coaxial with the compression chamber 1. Multiple sets of insulating rods 8 are equidistantly arranged around the inner cavity of the jacket 7. Electric heating wires 9 are wound on the insulating rods 8 to heat the plastic particles, thereby moderately softening the surface of the plastic particles and increasing the compression density.

[0028] Inside the jacket 7 on the outer wall of the compression chamber 1, electric heating wires 9 (total power 1-3kW) on multiple sets of insulating rods 8 are energized and generate heat. The heat is conducted to the inside of the chamber, raising the temperature of the plastic granules to 60-100℃. The surface of the granules softens moderately (does not melt). The softened plastic granules are easier to deform and fill the space during the compression process, thereby increasing the compression density.

[0029] Increasing the density of compressed plastic granules further reduces their volume, improves the compression effect, and meets higher storage and transportation requirements.

[0030] For a preferred embodiment, please refer to Figure 1-4 : It also includes a cutting mechanism, which is set at the bottom of the compression chamber 1. The cutting mechanism includes a connecting arm 14, a fixed seat 15 and a blade 16. The fixed seat 15 is set at the end of the connecting arm 14. A slot is provided on the fixed seat 15. The handle of the blade 16 is inserted into the slot and fixed by a fixing screw. The handle of the blade 16 and the slot are respectively opened with through holes for the fixing screw to pass through. The blade 16 is vertically set and located on one side of the discharge port.

[0031] The lower end of the shaft of the screw conveyor 5 extends to the outside of the bottom end of the compression chamber 1. A square locking block 10 is provided at the lower end of the shaft. A threaded post 11 is provided at the center of the bottom surface of the locking block 10. A collar 12 is provided at the other end of the connecting arm 14. A locking hole 13 adapted to the locking block 10 is opened at the center of the collar 12. The height of the locking block 10 is slightly less than the depth of the locking hole 13. A fastening sleeve 17 is threaded on the threaded post 11 to lock the collar 12 onto the locking block 10. When the screw conveyor 5 rotates, it drives the blade 16 to cut the compressed material extruded from the connecting hole.

[0032] The blade 16 is connected to the shaft of the screw conveyor 5 via the connecting arm 14. When the screw conveyor 5 rotates, the connecting arm 14 and the blade 16 move in a circular motion through the cooperation of the locking block 10 and the collar 12. During the motion, the blade 16 cuts the compressed material extruded from the discharge hole 6. The blade 16 is fixed in the slot of the fixing seat 15 with fixing screws for easy disassembly and replacement.

[0033] Cutting continuously extruded compressed material into blocks of specified lengths facilitates subsequent packaging, storage, and transportation, improving product regularity and convenience.

[0034] For a preferred embodiment, please refer to Figure 1 : It also includes a receiving mechanism, which is located directly below the compression chamber 1. The receiving mechanism includes a receiving box 18. A support 2 is arranged around the outer wall of the compression chamber 1 to support the compression chamber 1. The receiving box 18 and the compression chamber 1 are coaxially arranged. The diameter of the receiving box 18 is 2-3 times that of the compression chamber 1. Cooling holes 19 are distributed on the outer wall of the receiving box 18. The compressed material falls into the receiving box 18 and is ventilated and cooled through the cooling holes 19 to prevent sticking.

[0035] The receiving box 18 (with a diameter 2-3 times that of the compression chamber 1) below the compression chamber 1 receives the compressed material after cutting. The cooling holes 19 (with a diameter of 5-8mm) distributed on the box wall form a natural ventilation channel, and the air circulation carries away the waste heat of the compressed material.

[0036] To prevent compressed material from sticking together due to residual heat; the support bracket 2 ensures stable material receiving, and the large diameter design is adapted to the discharge range of multiple sets of discharge holes 6, improving material receiving efficiency.

[0037] It also includes a control panel for controlling the operation of the compression mechanism and the heating mechanism. The control panel is controlled by a built-in PLC controller. The control circuit of the PLC controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail. The compression chamber 1 has a built-in temperature sensor for monitoring the temperature. The temperature sensor signal is connected to the control panel, and the temperature is adjusted in conjunction with the heating mechanism through a preset program, realizing the automated operation of the device. This simplifies the operation process (eliminating the need for real-time manual monitoring), improves the stability and consistency of the device's operation, and reduces errors caused by human intervention. The heating element's power (500-1000W) can be adjusted in stages by the controller (e.g., full power at low temperatures, reduced to half power when approaching the target temperature) to achieve precise temperature control. Simultaneously, the temperature sensor continuously provides real-time data, forming a closed-loop control system of "monitoring-judgment-execution-feedback" to ensure the plastic granules temperature remains stable within the set range.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A plastic pellet compression device, characterized in that, include: The compression chamber (1) has a feeding channel (3) connected to the inner cavity of the compression chamber (1) on one side of the upper end of the outer wall, and a discharge hole (6) is opened on the lower end of the outer wall of the compression chamber (1). A compression mechanism is provided inside the compression chamber (1). The compression mechanism includes a spiral conveyor rod (5). The shaft of the spiral conveyor rod (5) is rotatably installed inside the compression chamber (1). The edge of the spiral blade of the spiral conveyor rod (5) is clearance-fitted with the inner wall of the compression chamber (1). A motor (4) is installed on the top of the compression chamber (1) to drive the spiral conveyor rod (5) to rotate to compress the plastic particles and discharge them from the discharge hole (6).

2. The plastic pellet compression device according to claim 1, characterized in that: The discharge holes (6) are provided in multiple sets at equal intervals around the outer wall of the compression chamber (1). The discharge holes (6) are designed to be inclined downwards to facilitate the extrusion of the compressed material.

3. The plastic pellet compression device according to claim 1, characterized in that: The compression chamber (1) is cylindrical, and its inner wall is coated with polytetrafluoroethylene.

4. The plastic pellet compression equipment according to claim 1, characterized in that: It also includes a heating mechanism, which is set on the outer wall of the compression chamber (1). The heating mechanism includes a jacket (7) and an insulating rod (8). The jacket (7) is located on the outer wall of the compression chamber (1) and is coaxial with the compression chamber (1). Multiple sets of insulating rods (8) are equidistantly arranged around the inner cavity of the jacket (7). An electric heating wire (9) is wound on the insulating rod (8) to heat the plastic particles, thereby moderately softening the surface of the plastic particles and increasing the compression density.

5. The plastic pellet compression device according to claim 1, characterized in that: It also includes a cutting mechanism, which is set at the bottom of the compression chamber (1). The cutting mechanism includes a connecting arm (14), a fixed seat (15) and a blade (16). The fixed seat (15) is set at the end of the connecting arm (14). A slot is provided on the fixed seat (15). The handle of the blade (16) is inserted into the slot and fixed by a fixing screw. The handle of the blade (16) and the slot are respectively opened with through holes for the fixing screw to pass through. The blade (16) is set vertically and located on one side of the discharge port.

6. The plastic pellet compression device according to claim 5, characterized in that: The lower end of the shaft of the spiral conveyor (5) extends to the outside of the bottom end of the compression chamber (1). A square locking block (10) is provided at the lower end of the shaft. A threaded post (11) is provided at the center of the bottom surface of the locking block (10). A collar (12) is provided at the other end of the connecting arm (14). A locking hole (13) adapted to the locking block (10) is opened at the center of the collar (12). The height of the locking block (10) is slightly less than the depth of the locking hole (13). A fastening sleeve (17) is threaded on the threaded post (11) to lock the collar (12) on the locking block (10). When the spiral conveyor (5) rotates, it drives the blade (16) to cut the compressed material extruded from the connecting hole.

7. The plastic pellet compression device according to claim 1, characterized in that: It also includes a receiving mechanism, which is located directly below the compression chamber (1). The receiving mechanism includes a receiving box (18). A support (2) is arranged around the outer wall of the compression chamber (1) to support the compression chamber (1). The receiving box (18) and the compression chamber (1) are coaxially arranged. The diameter of the receiving box (18) is 2-3 times that of the compression chamber (1). Cooling holes (19) are distributed on the outer wall of the receiving box (18). The compressed material falls into the receiving box (18) and is ventilated and cooled through the cooling holes (19) to avoid sticking.

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