Self-cleaning screening and pelletizing equipment for PP material modification processing
By using ventilation slots and jet pipes to create airflow in PP material modification and processing equipment, combined with cooling and screening functions, the problem of raw material adhesion is solved, achieving self-cleaning pelletizing and efficient screening, thereby improving processing efficiency and molding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-04-03
AI Technical Summary
In the existing PP material modification process, the raw materials tend to stick to the chips during pelleting, resulting in cumbersome cleaning operations.
The system utilizes ventilation slots within the support frame in conjunction with jet pipes to create a downward airflow that moves the particles and prevents them from sticking together. Combined with cooling pipes and a temperature controller, the particle temperature is rapidly reduced. Unqualified particles are screened using a vibrating motor and a multi-stage screening plate and then collected centrally via a transfer assembly.
It achieves a self-cleaning pelletizing process, avoids particle adhesion, improves processing efficiency, ensures particle forming quality, and simplifies cleaning steps.
Smart Images
Figure CN224074729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PP material modification and processing technology, specifically to a self-cleaning screening and pelletizing device for PP material modification and processing. Background Technology
[0002] In existing PP material modification and processing, raw materials are usually pelletized. When the raw materials are extruded through an extruder and then pelletized through a slab, the material particles tend to stick to the slab. The machine needs to be stopped first, and manual cleaning is required, which is quite troublesome. Therefore, there is an urgent need for a self-cleaning screening and pelletizing equipment for PP material modification and processing to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to address the deficiencies and shortcomings of existing technologies by providing a self-cleaning screening and pelletizing device for PP material modification and processing, whose technical features can solve the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes an extrusion cylinder and a feeding cylinder; the cutting end is disposed at the end of the extrusion cylinder; the feeding cylinder is disposed through the extrusion cylinder;
[0005] It also includes:
[0006] The support frame is fixedly installed at the end of the extrusion cylinder, and the cutting end is located inside the support frame. A ventilation groove is provided inside the support frame, and the top of the ventilation groove is connected to an external air pump via a pipe.
[0007] The jet pipes are multiple in number, and each jet pipe is respectively installed on the inner wall of the support frame. The jet pipes are located between the extrusion cylinder and the cutting end, and the jet pipes are connected to the ventilation groove.
[0008] The collection box is a hollow box-type structure with an opening at the top. The collection box is located below the extrusion cylinder and the cutting end. The collection box has discharge ports on the front and rear sides respectively. The transfer component is located on the front side of the collection box.
[0009] A multi-stage screening plate is fixedly installed inside the collection box, and the multi-stage screening plate is configured in conjunction with the discharge port.
[0010] Furthermore, the transfer component includes:
[0011] The transfer pipe is a trapezoidal structure with open ends and hollow interior. One end of the transfer pipe is connected to the front side of the collection box and is connected to the corresponding discharge port.
[0012] The baffle has one end screwed onto one side of the outer opening of the transfer pipe using a hinge seat, and the baffle and the transfer pipe are in contact with each other. The other end of the baffle is connected to the other side of the outer opening of the transfer pipe using bolts. Limiting plates are provided at both ends of the baffle, and the limiting plates are in contact with the transfer pipe.
[0013] The collection box is a hollow cylindrical structure with an opening at the top, and it is located below the baffle.
[0014] Furthermore, the bottom end of the transfer pipe is provided with an abutment plate, and the end of the abutment plate is configured to abut against a baffle.
[0015] Furthermore, cooling pipes are connected to the bottom ends of both sides of the ventilation groove, and a temperature controller is provided at the other end of the cooling pipes.
[0016] Furthermore, air guide plates are respectively provided on the inner walls of the bottom ends of both sides of the ventilation groove, and the air guide plates are located above the lowest jet pipe.
[0017] Furthermore, a vibration motor is provided on the side wall of the collection box, the vibration motor is connected to an external power source, and a drainage frame is provided at the top opening of the collection box.
[0018] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a self-cleaning screening and pelletizing device for PP material modification and processing. Through the cooperation of the air groove in the support frame and the jet pipe, a downward airflow is formed between the extrusion cylinder and the cutting end, thereby driving the particles downward and avoiding the particles from sticking to the slices on the cutting end. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the support frame and cooling pipe in this utility model.
[0021] Figure 3 This is a schematic diagram of the structure of the collection box in this utility model.
[0022] Figure 4 This is a schematic diagram of the transfer component in this utility model.
[0023] Figure 5 This is a schematic diagram of the transfer pipe and baffle in this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Extrusion cylinder; 2. Feed cylinder; 3. Cutting end; 4. Support frame; 5. Ventilation groove; 6. Jet pipe; 7. Collection box; 8. Discharge port; 9. Transfer assembly; 10. Multi-stage screening plate; 11. Transfer pipe; 12. Baffle; 13. Limiting plate; 14. Collection box; 15. Contact plate; 16. Cooling pipe; 17. Temperature controller; 18. Air duct; 19. Vibration motor; 20. Drainage frame. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] like Figures 1-5 As shown, this specific embodiment adopts the following technical solution: it includes an extrusion cylinder 1 and a feed cylinder 2; a cutting end 3 is disposed at the end of the extrusion cylinder 1; and the feed cylinder 2 is disposed through the extrusion cylinder 1.
[0028] It also includes:
[0029] The support frame 4 is fixedly installed at the end of the extrusion cylinder 1, and the cutting end 3 is located inside the support frame 4. The support frame 4 is provided with a ventilation groove 5, and the top of the ventilation groove 5 is connected to an external air pump through a pipe. The air pump fills the ventilation groove 5 with air.
[0030] The jet pipes 6 are multiple in number and are respectively installed on the inner wall of the support frame 4. The jet pipes 6 are located between the extrusion cylinder 1 and the cutting end 3. The jet pipes 6 are connected to the ventilation groove 5. The gas is sprayed between the extrusion cylinder 1 and the cutting end 3 through the jet pipes 6. The force of the gas drives the granules to move downward, preventing the granules from sticking to the cutter of the extrusion cylinder 1 and the cutting end 3. Cooling pipes 16 are connected to the bottom ends of both sides of the ventilation groove 5. The other end of the cooling pipe 16 is equipped with a temperature controller 17. The temperature controller 17 controls the gas temperature in the cooling pipe 16, so that the two jet pipes 6 at the bottom can spray cold air, which can quickly reduce the temperature of the granules and speed up the forming speed of the granules. The inner walls of the bottom ends of both sides of the ventilation groove 5 are respectively equipped with air guide plates 18, and the air guide plates 18 are located above the bottom jet pipes 6. The air guide plates 18 guide the gas in the ventilation groove 5, so that the gas in the ventilation groove 5 and the gas in the cooling pipes 16 can pass through the bottom jet pipes 6.
[0031] The collection box 7 is a box-type structure with an open top and hollow structure. The collection box 7 is located below the extrusion cylinder 1 and the cutting end 3. The front and rear sides of the collection box 7 are respectively provided with discharge ports 8. The transfer component 9 is located on the front side of the collection box 7 to facilitate the collection of granules. The side wall of the collection box 7 is provided with a vibration motor 19, which is connected to an external power source.
[0032] A multi-stage screening plate 10 is fixedly installed inside the collection box 7 and is configured in conjunction with the discharge port 8. The multi-stage screening plate 10 facilitates the screening of unqualified granules, which are discharged from the discharge port 8 on the front side. A vibration motor 19 is provided on the side wall of the collection box 7 and is connected to an external power supply. A guide frame 20 is provided at the top opening of the collection box 7. The vibration motor 19 facilitates the passage of granules through the multi-stage screening plate 10 and prevents granules from remaining on the multi-stage screening plate 10.
[0033] Transshipment component 9 includes:
[0034] The transfer pipe 11 is a trapezoidal structure with open ends and hollow. One end of the transfer pipe 11 is connected to the front side of the collection box 7 and is connected to the corresponding discharge port 8. The transfer pipe 11 facilitates the collection of unqualified granules.
[0035] A baffle 12 is provided. One end of the baffle 12 is screwed to one side of the outer opening of the transfer pipe 11 by a hinge seat, and the baffle 12 and the transfer pipe 11 are in contact with each other. The other end of the baffle 12 is connected to the other side of the outer opening of the transfer pipe 11 by a bolt. Limiting plates 13 are provided at both ends of the baffle 12. The limiting plates 13 are in contact with the transfer pipe 11. The opening of the transfer pipe 11 is controlled by the baffle 12. The bottom end of the transfer pipe 11 is provided with an abutment plate 15, and the end of the abutment plate 15 is in contact with the baffle 12 to limit the tilt angle of the baffle 12.
[0036] The collection box 14 is a hollow cylindrical structure with an opening at the top, and it is located below the baffle 12 to facilitate the collection of unqualified granules. The granules are then poured into the feed cylinder 2 through the collection box 14 for remelting and extrusion.
[0037] When using this invention, during pelletizing, the air pump is activated at the cutting end 3 to deliver gas to the ventilation trough 5. The gas is then sprayed onto the cutting end 3 through the jet pipe 6. The downward force of the gas prevents the pellets from sticking to the cutting end 3, thus achieving self-cleaning. The chopped pellets fall into the collection box 7. Simultaneously, the temperature of the gas in the cooling pipe 16 is controlled by the temperature controller 17, causing the gas in the cooling pipe 16 to enter the ventilation trough 5. The gas then passes through the air guide plate 18 and the lowest jet pipe 6, thereby cooling the pellets and accelerating pellet formation. Finally, a vibration motor is used... The vibration of 19 facilitates the passage of granules through the multi-stage screening plate 10, separating particles that are too large or too small. The particles that are too large or too small enter the transfer pipe 11 through the front discharge port 8. When the number of particles in the transfer pipe 11 reaches a certain amount, the bolts are loosened to open the baffle 12. With the limiting action of the limiting plate 13, the particles in the transfer pipe 11 fall into the collection box 14 below through the baffle 12. Finally, the baffle 12 is fixed to the transfer pipe 11 with bolts, and the particles in the collection box 14 are poured into the feed cylinder 2 for remelting and processing.
[0038] Compared with the prior art, the beneficial effects of this utility model are:
[0039] Gas is introduced into the ventilation slot 5 by an external air pump, and the spray angle of the gas is controlled by the jet pipe 6, so that a downward airflow is formed between the end of the extrusion cylinder 1 and the cutting end 3, which prevents the granules from sticking to the cutting end 3, thereby achieving the self-cleaning function of the cutting end 3.
[0040] The transfer component 9 is set up so that the unqualified granules are concentrated in the transfer pipe 11 by the action of the multi-stage screening plate 10, and then the unqualified granules are concentrated in the collection box 14 by the guiding action of the baffle 12.
[0041] The contact plate 15 is provided to limit the rotation angle of the baffle 12 and to facilitate the falling into the collection box 14 through the baffle 12;
[0042] A cooling pipe 16 is installed, and the temperature of the gas inside the cooling pipe 16 is reduced by a temperature controller 17, so that the two bottom jet pipes 6 can spray out cold air, which can quickly reduce the temperature of the particles and accelerate the formation of the particles.
[0043] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A self-cleaning screening and pelletizing device for PP material modification and processing, comprising an extrusion cylinder (1) and a feed cylinder (2); a cutting end (3) is disposed at the end of the extrusion cylinder (1); and the feed cylinder (2) is disposed through the extrusion cylinder (1); It also includes: The support frame (4) is fixedly installed at the end of the extrusion cylinder (1), and the cutting end (3) is located inside the support frame (4). A ventilation groove (5) is provided inside the support frame (4), and the top of the ventilation groove (5) is connected to an external air pump via a pipe. The jet pipe (6) is a plurality of jet pipes (6), which are respectively arranged on the inner wall of the support frame (4), and the jet pipe (6) is located between the extrusion cylinder (1) and the cutting end (3), and the jet pipe (6) is connected to the ventilation groove (5). The collection box (7) is a box-type structure with an open top and hollow structure. The collection box (7) is located below the extrusion cylinder (1) and the cutting end (3). The front and rear sides of the collection box (7) are respectively provided with discharge ports (8). The transfer component (9) is located on the front side of the collection box (7). A multi-stage screening plate (10) is fixedly installed inside the collection box (7), and the multi-stage screening plate (10) is configured in conjunction with the discharge port (8).
2. The self-cleaning screening and pelletizing equipment for PP material modification processing according to claim 1, characterized in that: The transfer component (9) includes: The transfer pipe (11) is a trapezoidal structure with open ends and hollow. One end of the transfer pipe (11) is connected to the front side of the collection box (7) and is connected to the corresponding discharge port (8). A baffle (12) is provided. One end of the baffle (12) is screwed to one side of the outer opening of the transfer pipe (11) by a hinge seat, and the baffle (12) and the transfer pipe (11) are engaged in abutment. The other end of the baffle (12) is connected to the other side of the outer opening of the transfer pipe (11) by bolts. Limiting plates (13) are provided at both ends of the baffle (12), and the limiting plates (13) and the transfer pipe (11) are engaged in abutment. The collection box (14) is a cylindrical structure with an open top and is located below the baffle (12).
3. The self-cleaning screening and pelletizing equipment for PP material modification processing according to claim 2, characterized in that: The bottom end of the transfer pipe (11) is provided with an abutment plate (15), and the end of the abutment plate (15) is set to abut against the baffle (12).
4. The self-cleaning screening and pelletizing equipment for PP material modification processing according to claim 1, characterized in that: Cooling pipes (16) are connected to the bottom ends of both sides of the ventilation groove (5), and a temperature controller (17) is provided at the other end of the cooling pipe (16).
5. The self-cleaning screening and pelletizing equipment for PP material modification processing according to claim 1, characterized in that: The ventilation slot (5) has air guide plates (18) on the inner walls of the bottom ends on both sides, and the air guide plates (18) are located above the bottom jet pipe (6).
6. The self-cleaning screening and pelletizing equipment for PP material modification processing according to claim 1, characterized in that: The collection box (7) is provided with a vibration motor (19) on its side wall. The vibration motor (19) is connected to an external power source, and a drainage frame (20) is provided at the top opening of the collection box (7).