Adjustable granulator for long-fiber polypropylene composite material
By introducing a combination of air pump and cleaning brush into the pelletizer, the problem of dust and impurities brought in by the plastic sheets is solved, achieving more efficient cleaning and improved cutting quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONG FIBER (XIAMEN) NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-28
AI Technical Summary
During the cutting process of a plastic pelletizer, dust and impurities brought into the machine by the plastic sheets reduce the cutting quality and affect production efficiency.
An adjustable pelletizer for long-fiber polypropylene composite materials was designed, equipped with an air pump and a cleaning brush. The air pump blows out gas to cool and remove dust, while the cleaning brush further cleans impurities from the surface of the plastic sheet. The adjustable air blowing direction and brush bristle design improve the cleaning effect.
It effectively reduces the chance of dust and impurities entering the machine body, improves cutting quality and production efficiency, and enhances the cleaning effect of the cleaning components.
Smart Images
Figure CN224170199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing technology, specifically to an adjustable pelletizer for long-fiber polypropylene composite materials. Background Technology
[0002] Plastic pelletizers are widely used in the plastics processing and recycling industry, primarily for cutting molten plastic or strips into small pellets for subsequent processing or reuse. Long fiber pelletizers, as crucial equipment in the plastics processing and recycling industry, have broad application prospects and significant economic value. With continuous technological advancements and growing market demand, long fiber pelletizers will play an even greater role in the future.
[0003] A typical pelletizer includes a body, a feed inlet, a feeding device, a cutting device, and a discharge outlet. The feed inlet and discharge outlet are located on opposite sides of the body. The cutting device is located inside the body. A feeding roller is located on the side of the feed inlet furthest from the body. During operation, the raw material is preheated and melted to form strips or sheets of plastic. After cooling, the plastic strips are pulled by the feeding device and evenly conveyed to the pelletizing chamber for cutting via the feeding roller. The cut pellets then leave the body through the discharge outlet.
[0004] However, during the process of the plastic sheet entering the machine, dust and impurities will be brought into the machine along with it. Over time, this will cause the accumulation of impurities and dust inside the machine, affecting the cutting quality of the machine.
[0005] Based on this, this utility model designs an adjustable pelletizer for long-fiber polypropylene composite materials to solve the above problems. Utility Model Content
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a machine body, with a feed inlet on the front side of the machine body. A feed roller for conveying plastic sheets is provided on one side of the feed inlet. Connecting rods are rotatably arranged on both sides of the feed inlet. A cleaning component is provided on the two connecting rods. The cleaning component includes an air pump, an air outlet pipe, and a cleaning brush. The air pump is fixedly mounted on the machine body, and a connecting pipe is fixedly mounted on the air pump. The air outlet pipe is located between the two connecting rods and is fixedly connected to the air outlet pipe. An air outlet hole is provided on the air outlet pipe. The cleaning brush is located on the side of the air outlet pipe near the feed inlet. When the plastic sheet is located on the feed roller, the bristles on the cleaning brush abut against the plastic sheet.
[0007] By adopting the above technical solution, when the plastic sheet enters the machine body from the feed inlet, it first passes under the air outlet pipe. The air pump is then activated, causing it to start supplying gas to the air outlet pipe. After entering the air blowing pipe, the gas is blown out from the air outlet. The blown gas comes into contact with the surface of the plastic sheet, which helps to cool the plastic sheet and allows it to stabilize in a taut state more quickly, improving the cutting quality of the pelletizer. On the other hand, it blows off the dust on the plastic sheet, reducing dust adhesion. As the plastic sheet continues to move forward, it comes into contact with the cleaning brush. The bristles on the cleaning brush can further clean the plastic sheet, reducing the impact of dust and impurities falling into the pelletizer and increasing the cleaning effect of the cleaning components, thereby improving the production quality of the pelletizer.
[0008] Preferably, a connecting cloth is fixedly provided on the air outlet, a guide tube is fixedly provided on the connecting cloth, sliding grooves are provided on both sides of the connecting rod, a positioning groove is provided on one side of the sliding groove, the positioning groove is connected to the sliding groove, a limit rod is slidably provided in the sliding grooves on both sides, the limit rod is fixedly connected to the guide tube, and when the limit rod is located in the positioning groove, the rotation direction of the guide tube is fixed.
[0009] By adopting the above technical solution, the sliding limit rod drives the guide tube to rotate. When adjusting the air blowing direction of the air outlet, the limit rod is slid into the corresponding positioning groove, so that the limit rod is fixed and the guide tube no longer rotates. The air blowing direction of the air outlet is changed, so that the air blowing tube can achieve a variety of different air blowing angles. Users can better achieve the cleaning effect according to the actual situation of the plastic strip.
[0010] Preferably, there are several cleaning brushes, and the thickness of the bristles on the cleaning brushes decreases towards both sides.
[0011] By adopting the above technical solution, the bristles on the cleaning brush can correspond to multiple plastic strips. When the plastic strips pass through the cleaning brush, impurities and dust on the surface are blocked by the cleaning brush. As the plastic strips continue to move forward, the impurities and dust begin to slide off along both sides of the bristles, thus avoiding the accumulation of dust on the bristles.
[0012] Preferably, the bristles are tilted toward the side closer to the feed inlet.
[0013] By adopting the above technical solution, the distance between the bristles and the surface of the plastic strip decreases from high to low, allowing the bristles to clean dust and impurities of different sizes, thereby further improving the cleaning effect of the cleaning brush.
[0014] Preferably, abutment blocks are provided on both sides of the positioning groove.
[0015] By adopting the above technical solution, the limiting rod can abut against the clamping block when it enters the positioning groove, thus increasing the stability of the limiting rod.
[0016] In summary, this application has the following beneficial technical effects: When the plastic sheet enters the machine body from the feed inlet, it first passes under the air outlet pipe. The air pump is then activated, causing it to begin supplying gas to the air outlet pipe. After entering the air blowing pipe, the gas is blown out from the air outlet. The blown gas comes into contact with the surface of the plastic sheet, which helps to cool the plastic sheet and allows it to stabilize in a taut state more quickly, improving the cutting quality of the pelletizer. On the other hand, it blows off the dust on the plastic sheet, reducing dust adhesion. As the plastic sheet continues to move forward, it comes into contact with the cleaning brush. The bristles on the cleaning brush can further clean the plastic sheet, reducing the impact of dust and impurities falling into the pelletizer and increasing the cleaning effect of the cleaning components, thereby improving the production quality of the pelletizer. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this embodiment;
[0019] Figure 2 This is a schematic diagram of the overall structure of the cleaning component in this embodiment;
[0020] Figure 3 This is a partial cross-sectional structural diagram of the cleaning component in this embodiment.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Machine body; 2. Feed inlet; 3. Plastic sheet; 4. Feed roller; 5. Air outlet pipe; 6. Connecting rod; 7. Limiting rod; 8. Cleaning brush; 9. Guide tube; 10. Slide groove; 11. Positioning groove; 12. Anchoring block; 13. Connecting cloth; 14. Air outlet; 15. Air pump; 16. Connecting pipe. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0025] An adjustable pelletizer for long-fiber polypropylene composite materials includes a machine body with a feed inlet on the front side. A feed roller for conveying plastic sheets is provided on one side of the feed inlet. Connecting rods are rotatably arranged on both sides of the feed inlet. A cleaning component is provided on the two connecting rods. The cleaning component includes an air pump, an air outlet pipe, and a cleaning brush. The air pump is fixedly mounted on the machine body and a connecting pipe is fixedly mounted on the air pump. The air outlet pipe is located between the two connecting rods and the connecting pipe is fixedly connected to the air outlet pipe. An air outlet hole is provided on the air outlet pipe. The cleaning brush is located on the side of the air outlet pipe near the feed inlet.
[0026] During use, the plastic sheet is pulled along the feed roller into the feed inlet. The air pump is started, and it begins to deliver gas to the connecting pipe. The gas enters the blowing pipe from the connecting pipe and is then blown towards the plastic sheet through the blowing holes on the blowing pipe. Dust and impurities on the plastic sheet are blown off by the impact of the gas. As the plastic sheet continues to move forward, its surface comes into contact with the bristles on the cleaning brush. The bristles scrape off any remaining impurities and dust on the surface of the plastic sheet, achieving a further cleaning effect, reducing dust entering the machine body, and further improving the cutting quality of the cutting machine.
[0027] A connecting cloth is fixedly installed on the air outlet, and a guide tube is fixedly installed on the connecting cloth. Slide grooves are opened on both sides of the connecting rod, and a positioning groove is opened on one side of the slide groove. The positioning groove is connected to the slide groove. Limiting rods are slidably installed in the slide grooves on both sides, and the limiting rods are fixedly connected to the guide tube.
[0028] The blowing direction of the air outlet can be adjusted. First, push the limiting rod so that both ends of the limiting rod slide in the slide groove. The limiting rod drives the guide tube to change direction. The guide tube is always connected to the air outlet through the connecting cloth. When it is adjusted to a suitable position, move the limiting rod into the positioning groove so that the limiting rod is limited in the positioning groove and no longer slips. The orientation of the guide tube is fixed.
[0029] The cleaning brush has several bristles, with the bristle thickness decreasing towards both sides. The bristles are tilted towards the side closer to the feed inlet. During cleaning, the cleaning brush scrapes off dust and impurities from the plastic sheet through relative movement. These dust and impurities accumulate and slide off along the sides of the cleaning brush, preventing dust buildup on the bristles. The distance between the bristles and the surface of the plastic strip decreases from high to low, allowing the bristles to clean dust and impurities of different sizes, further improving the cleaning effect. Clamping blocks are provided on both sides of the positioning groove, allowing the limiting rod to clamp against the clamping blocks when it enters the positioning groove, increasing the stability of the limiting rod.
[0030] The implementation principle of this embodiment is as follows: During use, the plastic sheet is pulled along the feed roller into the feed inlet. The air pump is started, causing the air pump to start delivering gas to the connecting pipe. The gas enters the blowing pipe from the connecting pipe and is then blown towards the plastic sheet through the blowing holes on the blowing pipe. Dust and impurities on the plastic sheet are blown off by the impact of the gas. As the plastic sheet continues to move forward, the surface of the plastic sheet begins to contact the bristles on the cleaning brush. The bristles scrape off the remaining impurities and dust on the surface of the plastic sheet. After these dust and impurities accumulate, they slide off along both sides of the cleaning brush, avoiding the accumulation of dust on the bristles, achieving a further cleaning effect, reducing dust entering the machine body, and further improving the cutting quality of the cutting machine.
[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adjustable pelletizer for long-fiber polypropylene composite materials, characterized in that: The machine includes a body (1), with a feed inlet (2) on the front side. A feed roller (4) for conveying plastic sheets (3) is provided on one side of the feed inlet (2). Connecting rods (6) are rotatably arranged on both sides of the feed inlet (2). A cleaning component is provided on the two connecting rods (6). The cleaning component includes an air pump (15), an air outlet pipe (5), and a cleaning brush (8). The air pump (15) is fixedly mounted on the body (1). A connecting pipe (16) is fixedly installed on the pump (15). The air outlet pipe (5) is located between two connecting rods (6). The connecting pipe (16) is fixedly connected to the air outlet pipe (5). An air outlet hole (14) is opened on the air outlet pipe (5). The cleaning brush (8) is located on the side of the air outlet pipe (5) near the feed inlet (2). When the plastic sheet (3) is located on the feed roller (4), the bristles on the cleaning brush (8) abut against the plastic sheet (3).
2. The adjustable pelletizer for long-fiber polypropylene composite materials according to claim 1, characterized in that: A connecting cloth (13) is fixedly installed on the air outlet (14), and a guide tube (9) is fixedly installed on the connecting cloth (13). Slide grooves (10) are opened on both sides of the connecting rod (6), and a positioning groove (11) is opened on one side of the slide groove (10). The positioning groove (11) is connected to the slide groove (10). Limiting rods (7) are slidably installed in the slide grooves (10) on both sides. The limiting rods (7) are fixedly connected to the guide tube (9). When the limiting rods (7) are located in the positioning groove (11), the rotation direction of the guide tube (9) is fixed.
3. The adjustable pelletizer for long-fiber polypropylene composite materials according to claim 1, characterized in that: The cleaning brush (8) is provided in several parts, and the thickness of the bristles on the cleaning brush (8) is set to decrease from both sides.
4. The adjustable pelletizer for long-fiber polypropylene composite materials according to claim 1, characterized in that: The bristles are tilted toward the side closer to the feed inlet (2).
5. The adjustable pelletizer for long-fiber polypropylene composite materials according to claim 2, characterized in that: The positioning groove (11) is provided with abutting blocks (12) on both sides.