Plastic granulator capable of discharging uniformly

Abstract

The utility model relates to the technical field of plastic processing, in particular to a plastic granulator capable of discharging uniformly, which comprises a base and a pressurizing cylinder transversely arranged in the base, a cleaning component comprises a die head arranged at the discharging end of the pressurizing cylinder, the surface of the die head is fixedly connected with a fixing ring, and the fixing ring is fixedly connected with the pressurizing cylinder. A pelletizing blade is arranged in the fixing ring, and two cleaning blocks are fixedly connected to the inner wall of the fixing ring; the fixed ring and the cleaning block are arranged at one end of the die head to clean the pelletizing blade, so that when the pelletizing blade is used for pelletizing, the pelletizing blade can be cleaned by the water spraying hole matched with the scraping block every time the pelletizing blade rotates by one circle, the pelletizing blade can quickly clean the surface of plastic after pelletizing, the plastic on the surface is prevented from being adhered for a long time, and the service life of the pelletizing blade is prolonged. And the sharpness of the blade in the pelletizing process is improved, and the trailing influence in the plastic pelletizing process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a plastic pelletizer with uniform output. Background Technology

[0002] Plastic pelletizers cut plastic strips or films into pellets using rotating blades. The key requirement is uniform pellet size. Inconsistent pellet size leads to uneven melting, increases raw material waste, and easily clogs the extruder screw, affecting the stability of continuous production. Uniform pellets improve the quality of recycled materials and meet the standardized feeding requirements of downstream processing equipment. Therefore, a plastic pelletizer with uniform output is needed when pelletizing plastics.

[0003] According to the Chinese patent "A Plastic Granulator for Uniform Pelletizing" authorized announcement number "CN221641444U", it is equipped with a transmission scraper mechanism. Under the action of the transmission scraper mechanism, the scraper can always be in contact with the surface of the discharge plate, so that it can cut materials faster and more uniformly, thereby meeting the needs of users.

[0004] Although the above application can cut materials by having a scraper adhere to the surface of the discharge plate, the plastic is in a molten state during processing and has a certain degree of stickiness. When the sticky plastic is cut by the scraper, some plastic will stick to the surface of the scraper, causing the scraper to become dull. This will aggravate the tailing problem during plastic cutting, resulting in unevenness of the plastic cut later compared to the plastic cut earlier.

[0005] Therefore, a plastic pelletizer with uniform output is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a plastic pelletizer with uniform output in order to solve the above-mentioned problems and improve the problem of the scraper becoming dull due to plastic sticking.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a plastic pelletizer with uniform output, comprising: a base and a pressure cylinder arranged horizontally inside the base;

[0008] The cleaning assembly includes a die head disposed at the discharge end of the pressure cylinder, a fixing ring fixedly connected to the surface of the die head, a pelletizing blade disposed inside the fixing ring, and two cleaning blocks fixedly connected to the inner wall of the fixing ring.

[0009] Preferably, the cleaning block has multiple water spray holes inside, and water cylinders are fixedly connected to both sides of the base. The multiple water spray holes on the two cleaning blocks are respectively connected to the two water cylinders. This improves the cleaning effect on the pelletizing blades.

[0010] Preferably, a scraper is fixedly connected to the surface of the cleaning block, and the scraper and multiple water spray holes symmetrically divide the cleaning block into two parts. The cleaning block is an arc-shaped block with a 90-degree arc. A baffle is fixedly connected to one side of the cleaning block, and the rotating shaft of the pelletizing blade passes through the cleaning block and is rotatably connected to the cleaning block. This reduces the impact of the cleaning block on pelletizing.

[0011] Preferably, a through groove is provided directly below the fixing ring, and the through groove is located between the water spray hole and the scraper block. This guides and treats the wastewater.

[0012] Preferably, a pusher plate is slidably connected to the inner wall of the pressure cylinder. The pusher plate is circular and its diameter is equal to the inner wall diameter of the pressure cylinder. An electric push rod is provided on the side of the pusher plate away from the discharge port. The electric push rod is fixedly connected to the base and penetrates into the pressure cylinder. The drive end of the electric push rod is fixedly connected to the pusher plate. This makes the raw material more compact.

[0013] Preferably, the pressure cylinder has a feed inlet at its top, and a collection box is provided below the die head. This facilitates the collection of plastic granules.

[0014] Preferably, a drive motor is provided at one end of the base near the discharge port of the pressure cylinder. The drive motor is fixedly connected to the inner wall of the base and a drive block is fixedly connected to the drive end. The drive block is rotatably connected to the base and is fixedly connected to the rotating shaft of the pelletizing blade.

[0015] The beneficial effects of this utility model are:

[0016] By setting a fixing ring and a cleaning block at one end of the die head to clean the pelletizing blade, the pelletizing blade is cleaned by the water spray hole and scraper block every time it rotates during pelletizing. This allows the pelletizing blade to quickly clean the surface of the plastic after pelletizing, preventing the plastic from sticking to the surface for a long time, improving the sharpness of the blade during pelletizing, and reducing the trailing effect when pelletizing plastic.

[0017] By setting up a pressure cylinder in conjunction with a pusher plate to pressurize the plastic inside the pressure cylinder, it becomes more viscous when pelletizing, allowing the pelletizing blades to cut the plastic faster, reducing tail formation and improving pelletizing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall structure of the cleaning component of this utility model;

[0021] Figure 4 This is an exploded view of the cleaning component of this utility model.

[0022] In the diagram: 100, base; 110, water cylinder; 200, pressure cylinder; 210, feed inlet; 220, push plate; 230, electric push rod; 300, drive motor; 310, drive block; 400, cleaning assembly; 410, die head; 420, retaining ring; 421, through groove; 430, pelletizing blade; 440, cleaning block; 441, water spray hole; 442, scraper; 443, baffle. Detailed Implementation

[0023] 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.

[0024] In practical implementation: such as Figure 1-4 As shown, a plastic pelletizer with uniform output includes: a base 100 and a pressure cylinder 200 arranged horizontally inside the base 100;

[0025] The cleaning assembly 400 includes a die head 410 disposed at the discharge end of the pressure cylinder 200. A fixing ring 420 is fixedly connected to the surface of the die head 410. A pelletizing blade 430 is disposed inside the fixing ring 420. Two cleaning blocks 440 are fixedly connected to the inner wall of the fixing ring 420.

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, the cleaning block 440 has multiple water spray holes 441 inside. Water cylinders 110 are fixedly connected to both sides of the base 100. The multiple water spray holes 441 on the two cleaning blocks 440 are respectively connected to the two water cylinders 110. A scraper 442 is fixedly connected to the surface of the cleaning block 440. The scraper 442 and the multiple water spray holes 441 symmetrically divide the cleaning block 440 into two parts. The cleaning block 440 is an arc-shaped block with a 90-degree arc. A baffle 443 is fixedly connected to one side of the cleaning block 440. The rotating shaft of the pelletizing blade 430 passes through the cleaning block 440 and is rotatably connected to the cleaning block 440. A through groove 421 is opened directly below the fixing ring 420. The through groove 421 is located between the water spray holes 441 and the scraper 442.

[0027] In this embodiment, the cleaning block 440 is split in half, with one half consisting of multiple water spray holes 441 and the other half consisting of a scraper block 442. The scraper block 442 protrudes from the water spray holes 441 and fits against the surface of the pelletizing blade 430. The water spray holes 441 are at a certain distance from the cleaning blade to facilitate water flow. The water sprayed from the water spray holes 441 flows out through the channel 421, preventing it from accumulating in the fixing ring 420. At the same time, both water cylinders 110 are equipped with water pumps to pressurize the water entering the water spray holes 441, thereby increasing the cleaning effect on the pelletizing blade 430. The multiple discharge ports of the die head 410 are also shaped like two 90-degree arcs, arranged laterally on both sides of the die head 410. The cleaning block 440 is arranged vertically at both ends of the fixing ring 420, so that the blade is cleaned once every time it rotates, preventing the plastic adhering to the blade from quickly solidifying on the pelletizing blade 430 under high-speed rotation.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, a pusher plate 220 is slidably connected to the inner wall of the pressure cylinder 200. The pusher plate 220 is circular and its diameter is equal to the inner wall diameter of the pressure cylinder 200. An electric push rod 230 is provided on the side of the pusher plate 220 away from the discharge port. The electric push rod 230 is fixedly connected to the base 100 and penetrates into the pressure cylinder 200. The drive end of the electric push rod 230 is fixedly connected to the pusher plate 220. A feed port 210 is opened at the top of the pressure cylinder 200. A collection box is provided below the die head 410. A drive motor 300 is provided at the end of the base 100 near the discharge port of the pressure cylinder 200. The drive motor 300 is fixedly connected to the inner wall of the base 100 and a drive block 310 is fixedly connected to the drive end. The drive block 310 is rotatably connected to the base 100 and is fixedly connected to the rotating shaft of the pelletizing blade 430.

[0029] In this embodiment, when adjusting the raw material into the pressure cylinder 200, it is necessary to ensure that the push plate 220 is located behind the feed port 210; the end of the pressure cylinder 200 near the electric push rod 230 is fixedly connected to the base 100; a collection box is provided below the die head 410, and the plastic that has been cut into granules will first concentrate around the cleaning block 440. In order to prevent the plastic particles from entering between the water spray hole 441 and the pelletizing blade 430, a baffle 443 is provided. The baffle 443 is flush with the scraper 442. The plastic particles concentrated near the cleaning block 440 will fall into the collection box with the continuously pushed raw material. At the same time, a guide tube is fixedly connected below the through groove 421. The guide tube is arc-shaped and guides the water sprayed from the water spray hole and the waste scraped off the pelletizing blade 430 by the scraper to a place outside the collection box.

[0030] When using this utility model, the raw material is added into the pressure cylinder 200 through the feed port 210, then the feed port 210 is closed, the drive motor 300 and the electric push rod 230 are started, the electric push rod 230 pushes the push plate 220 forward, the drive motor 300 drives the drive block 310 to rotate, and the drive block 310 drives the pelletizing blade 430 to rotate.

[0031] When the plastic raw material is pressurized, it is pressed into a strip shape through the die head 410. Then, the rotating pelletizing blade 430 cuts it into small pellets. During this process, after the pelletizing blade 430 cuts the strip-shaped raw material, it rotates to the space between the cleaning block 440 and the die head 410. The pelletizing blade 430 first passes through the water spray hole 441, which sprays water from the water cylinder 110 onto the surface of the pelletizing blade 430. Then, as the pelletizing blade continues to rotate, it passes through the scraper block 442. The scraper block 442 adheres to the pelletizing blade 430 and scrapes off the plastic adhering to the blade surface, making the pelletizing blade 430 sharper for the next cut of the strip-shaped raw material.

[0032] It should be noted that the drive motor 300 and electric actuator 230 mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the drive motor 300 and electric actuator 230 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plastic pelletizer with uniform discharge, characterized by, include: The base (100) and the pressure cylinder (200) horizontally disposed inside the base (100); The cleaning assembly (400) includes a die head (410) disposed at the discharge end of the pressure cylinder (200), a fixing ring (420) is fixedly connected to the surface of the die head (410), a pelletizing blade (430) is disposed inside the fixing ring (420), and two cleaning blocks (440) are fixedly connected to the inner wall of the fixing ring (420).

2. The plastic cutting machine with uniform discharge according to claim 1, characterized in that: The cleaning block (440) has multiple water spray holes (441) inside. Water cylinders (110) are fixedly connected to both sides of the base (100). The multiple water spray holes (441) on the two cleaning blocks (440) are respectively connected to the two water cylinders (110).

3. The plastic cutting machine with uniform discharge according to claim 1, characterized in that: A scraper (442) is fixedly connected to the surface of the cleaning block (440). The scraper (442) and multiple water spray holes (441) symmetrically divide the cleaning block (440) into two parts. The cleaning block (440) is an arc-shaped block with a radius of ninety degrees. A baffle (443) is fixedly connected to one side of the cleaning block (440). The rotating shaft of the pelletizing blade (430) passes through the cleaning block (440) and is rotatably connected to the cleaning block (440).

4. The plastic pellet cutting machine with uniform discharge according to claim 3, characterized in that: A through groove (421) is provided directly below the fixing ring (420), and the through groove (421) is located between the water spray hole (441) and the scraper (442).

5. The plastic pellet cutting machine with uniform discharge according to claim 1, characterized in that: The inner wall of the pressure cylinder (200) is slidably connected to a push plate (220). The push plate (220) is circular and its diameter is equal to the inner wall diameter of the pressure cylinder (200). An electric push rod (230) is provided on the side of the push plate (220) away from the discharge port. The electric push rod (230) is fixedly connected to the base (100) and penetrates into the pressure cylinder (200). The driving end of the electric push rod (230) is fixedly connected to the push plate (220).

6. The plastic pellet cutting machine with uniform discharge according to claim 1, characterized in that: The pressure cylinder (200) has a feed inlet (210) at its top, and a collection box is provided below the die head (410).

7. The plastic pellet cutting machine with uniform discharge according to claim 1, characterized in that: A drive motor (300) is provided at one end of the base (100) near the discharge port of the pressure cylinder (200). The drive motor (300) is fixedly connected to the inner wall of the base (100) and a drive block (310) is fixedly connected to the drive end. The drive block (310) is rotatably connected to the base (100) and is fixedly connected to the rotating shaft of the pelletizing blade (430).

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