Plastic color master batch extrusion device

Abstract

The utility model relates to a plastic color master batch extrusion device which comprises a feeding mechanism and a conveying mechanism arranged at the lower end of the feeding mechanism, and an output port of the conveying mechanism is communicated with an extruder die head; the feeding mechanism comprises a feeding hopper and a stirring assembly located in the feeding hopper. The stirring assembly comprises a first motor mounted at the top of the feeding hopper and a first rotating shaft connected with the output end of the first motor, a scraping plate is mounted at the upper part of the first rotating shaft, and a plurality of stirring rods are mounted at the middle lower part of the first rotating shaft; a screen is mounted at the upper part in the feeding hopper, and raw materials are scattered and mixed by a scraper, so that the caked raw materials are scattered, then flow down through the screen and are further scattered and mixed through a stirring rod, and the raw materials can be uniformly mixed and cannot be caked before entering the conveying mechanism through a discharge hole; therefore, the quality of the extruded color master batch strip is uniform, and the uniformity of the plastic color master batch is controllable.

Description

Technical Field

[0001] The utility model relates to the technical field of masterbatch extrusion equipment, in particular to a plastic masterbatch extrusion device. Background Art

[0002] Plastic masterbatch is a kind of pigment particle, which has certain dispersibility and processing fluidity, and can be conveniently used in plastic processing and production; its production process is to compound dyes or pigments with plastic resins, and go through multiple processes such as melting, granulation, drying, screening, etc., among which the granulation methods include injection molding, extrusion, tableting and spray drying. Extrusion is a more commonly used granulation method, that is, plastic strips are extruded from the extruder die head, and after the plastic strips are cooled, the plastic strips are cut into plastic pellets of a certain length by a plastic strip pelletizer. However, when the existing extruder heats and melts the masterbatch raw materials, the raw materials will be unevenly mixed or agglomerated, and the quality of the extruded masterbatch strips is uneven, resulting in the problem of uniformity of plastic masterbatch being difficult to control. Utility Model Content

[0003] The utility model aims to design a plastic masterbatch extrusion device, which can achieve uniform mixing of raw materials and prevent agglomeration before the extruder heats and melts the masterbatch raw materials, so as to solve the problems raised by the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic masterbatch extrusion device is provided, comprising a feeding mechanism and a conveying mechanism installed at the lower end of the feeding mechanism, the output port of the conveying mechanism is connected to the extruder die head; the feeding mechanism comprises a feeding funnel and a stirring assembly located inside the feeding funnel, the top of the feeding funnel is provided with a feeding port, and the bottom of the feeding funnel is provided with a discharge port; the stirring assembly comprises a first motor installed at the top of the feeding funnel, a first rotating shaft connected to the output end of the first motor, a scraper is installed on the upper part of the first rotating shaft, and a plurality of stirring rods are installed on the middle and lower parts of the first rotating shaft; a screen is installed on the upper part of the feeding funnel, and there is a gap between the upper end surface of the screen and the lower end surface of the scraper.

[0005] Furthermore, the conveying mechanism includes a machine slot, a second rotating shaft located inside the machine slot, and a second motor installed on the outer wall of the machine slot, one end of the second rotating shaft passes through the side wall of the machine slot and is connected to the output end of the second motor, the other end of the second rotating shaft is rotatably connected to the mounting seat in the machine slot, and the second rotating shaft is provided with a feeding screw.

[0006] Furthermore, a plurality of limit blocks are installed on the mounting seat, the bottom ends of the limit blocks directly contact the inner wall of the machine slot, a feeding channel is formed between two of the limit blocks, and the feeding channel is connected to the extruder die head.

[0007] Furthermore, a discharge cavity is installed between the mounting seat and the extruder die head, and the discharge cavity is communicated with the feeding channel and the extruder die head.

[0008] Furthermore, a spiral blade is provided at the lower portion of the first rotating shaft located at the discharge port.

[0009] Furthermore, a plurality of buffer columns are provided at the input end of the conveying mechanism.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model provides a feeding mechanism, and the raw materials first enter the screen through the feeding port, and then the first motor is started and drives the first rotating shaft to rotate, and then drives the scraper and the stirring rod to rotate, the scraper breaks up and mixes the raw materials, so that the agglomerated raw materials are broken up, and then flow through the screen, and then are further broken up and mixed by the stirring rod, so that the raw materials can be mixed evenly and will not agglomerate before entering the conveying mechanism through the discharge port, so that the quality of the extruded masterbatch strips is uniform, and the uniformity problem of the plastic masterbatch can be controlled; then the raw materials are heated and melted through the conveying mechanism, and conveyed to the extruder die head to extrude the plastic strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 for Figure 1 A magnified image of point A;

[0016] The names of the components marked in the figure are as follows:

[0017] 1. Feeding mechanism; 2. Conveying mechanism; 3. Extruder die head; 4. Feeding funnel; 5. Feeding port; 6. Discharging port; 7. First motor; 8. First rotating shaft; 9. Scraper; 10. Stirring rod; 11. Screen; 12. Machine slot; 13. Second rotating shaft; 14. Second motor; 15. Feeding screw; 16. Mounting seat; 17. Limiting block; 18. Feeding channel; 19. Discharging cavity; 20. Spiral blade; 21. Buffer column. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] Example: Reference Figure 1-3 A plastic masterbatch extrusion device, wherein the extruder die 3 is a prior art and is used to extrude masterbatch strips. A heating device is installed on the circumferential side of the conveying mechanism 2, and the heating device is a prior art and is used to heat and melt the mixture. The conveying mechanism 2 includes a machine slot 12, a second rotating shaft 13 located inside the machine slot 12, and a second motor 14 installed on the outer wall of the machine slot 12. One end of the second rotating shaft 13 passes through the side wall of the machine slot 12 and is connected to the output end of the second motor 14. The other end of the second rotating shaft 13 is rotatably connected to a mounting seat 16 in the machine slot 12. A feeding screw 15 is provided on the second rotating shaft 13. The second motor 14 drives the second rotating shaft 13 to rotate in the machine slot 12. The feeding screw 15 on the second rotating shaft 13 drives the mixture to move, thereby realizing the conveying function of the spiral conveying mechanism 2. At the same time, in the process of conveying the mixture, the mixture is heated and melted, and then conveyed to the extruder die 3 to extrude plastic strips. A plurality of limit blocks 17 are mounted on the mounting seat 16, the bottom of the limit block 17 directly contacts the inner wall of the machine slot 12, and a feeding channel 18 is formed between two limit blocks 17, and the feeding channel 18 is connected to the extruder die 3. A discharge cavity 19 is mounted between the mounting seat 16 and the extruder die 3, and the discharge cavity 19 is connected to the feeding channel 18 and the extruder die 3. The melted fluid plastic inside the machine slot 12 flows into the discharge cavity 19 through the feeding channel 18 and is extruded through the extruder die 3, so that the fluid plastic can be extruded evenly without bubbles in the fluid plastic when the feeding screw 15 is conveyed.

[0020] The feeding mechanism 1 includes a feeding hopper 4, a stirring assembly located inside the feeding hopper 4, a feeding port 5 is provided at the top of the feeding hopper 4, and a discharge port 6 is provided at the bottom of the feeding hopper 4; the stirring assembly includes a first motor 7 installed at the top of the feeding hopper 4, a first rotating shaft 8 connected to the output end of the first motor 7, a scraper 9 is installed on the upper part of the first rotating shaft 8, a plurality of stirring rods 10 are installed in the middle and lower parts of the first rotating shaft 8, and a spiral blade 20 is provided at the lower part of the first rotating shaft 8 located at the discharge port 6 for better feeding; a screen 11 is installed at the upper part of the feeding hopper 4, and there is a gap between the upper end surface of the screen 11 and the lower end surface of the scraper 9. A plurality of buffer columns 21 are also provided at the input end of the conveying mechanism 2. The raw material first enters the screen 11 through the feed port 5, and then the first motor 7 is started and drives the first rotating shaft 8 to rotate, and then drives the scraper 9 and the stirring rod 10 to rotate. The scraper 9 breaks up and mixes the raw materials, so that the agglomerated raw materials are broken up, and then flow through the screen 11, and then are further broken up and mixed by the stirring rod 10, so that the raw materials can be mixed evenly and will not agglomerate before entering the conveying mechanism 2 through the discharge port 6, so that the quality of the extruded masterbatch strips is uniform, and the uniformity problem of the plastic masterbatch can be controlled. At the same time, the buffer column 21 can reduce the impact force on the conveying mechanism 2 during transportation.

[0021] The working principle of this embodiment is as follows: the raw material first enters the screen 11 through the feed port 5, and then the first motor 7 is started and drives the first rotating shaft 8 to rotate, and then drives the scraper 9 and the stirring rod 10 to rotate. The scraper 9 breaks up and mixes the raw material, so that the agglomerated raw material is broken up, flows through the screen 11, and is further broken up and mixed by the stirring rod 10; the raw material enters the machine slot 12 through the discharge port 6, and the second motor 14 drives the second rotating shaft 13 to rotate in the machine slot 12. The feeding screw 15 on the second rotating shaft 13 drives the mixture to move, thereby realizing the conveying function of the spiral conveying mechanism 2. At the same time, in the process of conveying the mixture, the mixture is heated and melted, and then conveyed to the extruder die 3 to extrude plastic strips, and it works in this way.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A plastic masterbatch extrusion device, characterized in that: The invention comprises a feeding mechanism (1) and a conveying mechanism (2) installed at the lower end of the feeding mechanism (1), wherein the output port of the conveying mechanism (2) is connected to an extruder die head (3); the feeding mechanism (1) comprises a feeding hopper (4) and a stirring assembly located inside the feeding hopper (4), wherein the top of the feeding hopper (4) is provided with a feeding port (5), and the bottom of the feeding hopper (4) is provided with a discharge port (6); the stirring assembly comprises a first motor (7) installed at the top of the feeding hopper (4), and a first rotating shaft (8) connected to the output end of the first motor (7), wherein a scraper (9) is installed at the upper part of the first rotating shaft (8), and a plurality of stirring rods (10) are installed at the middle and lower parts of the first rotating shaft (8); a screen (11) is installed at the upper part of the feeding hopper (4), and there is a gap between the upper end surface of the screen (11) and the lower end surface of the scraper (9).

2. The plastic masterbatch extrusion device according to claim 1, characterized in that: The conveying mechanism (2) comprises a machine slot (12), a second rotating shaft (13) located inside the machine slot (12), and a second motor (14) mounted on the outer wall of the machine slot (12); one end of the second rotating shaft (13) passes through the side wall of the machine slot (12) and is connected to the output end of the second motor (14); the other end of the second rotating shaft (13) is rotatably connected to a mounting seat (16) in the machine slot (12); and a feeding screw (15) is provided on the second rotating shaft (13).

3. The plastic masterbatch extrusion device according to claim 2, characterized in that: A plurality of limit blocks (17) are mounted on the mounting seat (16), the bottom ends of the limit blocks (17) directly contact the inner wall of the machine slot (12), a feeding channel (18) is formed between two of the limit blocks (17), and the feeding channel (18) is connected to the extruder die head (3).

4. The plastic masterbatch extrusion device according to claim 3, characterized in that: A discharge cavity (19) is installed between the mounting seat (16) and the extruder die head (3), and the discharge cavity (19) is connected to the feeding channel (18) and the extruder die head (3).

5. The plastic masterbatch extrusion device according to claim 1, characterized in that: The lower part of the first rotating shaft (8) located at the discharge port (6) is provided with a spiral blade (20).

6. The plastic masterbatch extrusion device according to claim 5, characterized in that: The input end of the conveying mechanism (2) is also provided with a plurality of buffer columns (21).

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