A blow-off mechanism for use on a pelletizer

Abstract

The utility model discloses a kind of blow-off material mechanism suitable on granulator, including the fixed plate of liftable erection on granulator, multiple airflow air knives are evenly provided on the fixed plate along the circumferential direction of the discharge port of granulator, the middle line of the airflow air knife is adjustably arranged along the radial angle of discharge port, and air inlet is circumscribed compressed air.The utility model is adjusted by setting the fixed plate liftable, to drive the height position adjustment of airflow air knife installed thereon relative to discharge port, airflow air knife is set into angle adjustable simultaneously, to realize the adjustment of notch direction, can be according to the characteristics of different materials and extrusion speed, realize optimal automatic cutting scheme, save manual operation;Airflow air knife is used to replace traditional mechanical knife, form high-speed, sheet-shaped directional airflow, can efficiently, stably and consistently automatically blow off to continuous extruded cylindrical material.

Description

Technical Field

[0001] This utility model relates to the field of granulation equipment technology, and in particular to an air blowing and material cutting mechanism applicable to granulators. Background Technology

[0002] In chemical production processes, after raw materials undergo preliminary reactions and mixing, they typically need to be extruded into shapes using a granulator. The material exiting the discharge port is generally in a cylindrical strip shape, which is then cooled, dried, or cut into granules. However, for some specially formulated materials, due to their high viscosity and toughness, they often do not easily break naturally at the die opening, causing the strip to continuously extend. Without effective material-cutting measures, this leads to unstable output, making it difficult to ensure consistent product specifications in subsequent drying and granulation processes.

[0003] Currently, there are two main types of material cutting methods: one is to manually scrape the material back and forth at the discharge port with a scraper; the other is for the operator to hold an air hose and use airflow to blow the material off the discharge port. While these methods can achieve material cutting to some extent, they have the following obvious drawbacks:

[0004] 1. High labor intensity: Frequent and repetitive manual operations result in high work intensity;

[0005] 2. Harsh working environment: Workers need to work in harsh environments such as high temperature and chemical odor for a long time, which poses potential hazards to human health;

[0006] 3. Poor consistency in material cutting: Both manual scraping and airflow cutting depend on the operator's skill, and the cutting time and force are uneven, resulting in large deviations in product length.

[0007] 4. Low production efficiency: Manual intervention is insufficient to meet the needs of continuous and large-scale production, becoming a bottleneck for improving production efficiency.

[0008] Against this backdrop, there is an urgent need for a new automated material cutting mechanism. In existing equipment, mechanical blades are used to cut directly, but under conditions of highly viscous materials, the blades are easily worn, the cutting effect is not ideal, and there may even be problems such as broken strips or stringing, making it difficult to guarantee the stability of material cutting and the uniformity of the product. Utility Model Content

[0009] The purpose of this invention is to address the shortcomings of existing technologies by proposing an air-blowing material-cutting mechanism applicable to granulators, which can achieve efficient, stable and consistent material-cutting operation for high-viscosity materials at the granulator outlet.

[0010] The technical solution to achieve the purpose of this utility model is:

[0011] An air-blowing material-cutting mechanism applicable to a granulator includes a fixed plate that can be lifted and mounted on the granulator. Multiple air-flow knives are evenly arranged on the fixed plate along the circumference of the granulator's discharge port. The centerline of the air-flow knives is set at an adjustable radial angle along the discharge port. Compressed air is connected to the air inlet.

[0012] Furthermore, the fixing plate has a ring structure.

[0013] Furthermore, the granulator is provided with multiple fixed supports evenly distributed around the discharge port, and a lifting mechanism is fixedly mounted on the top of the supports, with the movable end of the lifting mechanism being fixedly connected to the fixed plate.

[0014] Furthermore, the lifting mechanism is a cylinder, the cylinder body of which is fixedly mounted on a fixed bracket, and the piston rod is set vertically downward and its end is connected to a fixed plate.

[0015] Furthermore, the fixed support includes a first frame that is vertically upward and a second frame that is vertically fixed to the top of the first frame, and the lifting mechanism is installed at the end of the second frame.

[0016] Furthermore, the bottom of the first frame is provided with a strip-shaped through groove, and the strip-shaped through groove is provided with bolts that are tightened onto the granulator.

[0017] Furthermore, the bottom of the fixed plate is provided with multiple adjustment seats, the same number as the airflow blades. The airflow blades are rotatably mounted on the fixed plate through the adjustment seats, and the rotation axis is perpendicular to the radial direction of the fixed plate.

[0018] Furthermore, the adjusting seat includes a first seat body and a second seat body that are respectively fixedly connected to the fixed plate and the airflow knife, and a screw rod that passes through the first seat body and the second seat body. The first seat body and the second seat body are rotatably connected by the screw rod, and a nut is provided at the end of the screw rod. The first seat body and the second seat body are locked by the nut.

[0019] Furthermore, the feature is that it also includes a control system, a solenoid valve, and an air source regulating valve, wherein the air source regulating valve and the solenoid valve are sequentially connected between the air inlet of the airflow knife and the outlet of the compressed air, and the lifting mechanism and the solenoid valve are both electrically connected to the control system.

[0020] By adopting the above technical solution, this utility model has the following beneficial effects:

[0021] (1) This utility model sets up a liftable fixed plate, thereby driving the airflow knife installed on it to adjust the height position relative to the discharge port. At the same time, the airflow knife is set to be angle adjustable, thereby realizing the adjustment of the cutting direction. According to the characteristics of different materials and extrusion speed, the optimal automatic cutting scheme can be realized, saving manual operation. The airflow knife replaces the traditional mechanical knife, forming a high-speed, thin-sheet directional airflow, which can efficiently, stably and consistently blow off the continuously extruded cylindrical materials.

[0022] (2) The present invention sets the fixing plate into a ring structure, which is compatible with the shape of the discharge port, making it more conducive to the arrangement of airflow knives and simplifying the structure.

[0023] (3) This utility model uses a fixed bracket to install the fixed plate and uses a cylinder as a lifting mechanism to drive the fixed plate to achieve lifting and adjustment. The structure is simple and the action response is fast.

[0024] (4) By setting the fixed bracket into a “7” shaped structure, this utility model provides more clearance for the lifting and lowering of the fixed plate.

[0025] (5) By setting a strip-shaped through groove, this utility model facilitates the adjustment of the position of the fixed bracket during installation, meets the installation requirements of fixed plates of different sizes, and is compatible with the material cutting requirements of discharge ports of different diameters.

[0026] (6) This utility model realizes the rotational connection between the airflow knife and the fixed plate through the adjustment seat. The adjustment seat is connected by a screw to the two seats to realize the hinge. The two seats are locked by rotating the nut. The structure is simple and the adjustment is convenient.

[0027] (7) This utility model controls the intensity of blowing by adding an air source regulating valve, and at the same time adds a solenoid valve and a control system to achieve intelligent control. Attached Figure Description

[0028] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0029] Figure 1 This is a simplified structural diagram of the present invention;

[0030] Figure 2 This utility model Figure 1 A magnified view of section A in the image.

[0031] The labels in the attached diagram are:

[0032] Granulator 100;

[0033] 1. Fixed plate, 2. Airflow knife, 3. Fixed bracket, 3-1 first frame, 3-1-1 strip groove, 3-2 second frame, 4. Lifting mechanism, 5. Adjusting seat, 5-1 first seat, 5-2 second seat. Detailed Implementation

[0034] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0035] (Example 1)

[0036] like Figures 1 to 2 The air-blowing material-cutting mechanism shown is applicable to a granulator 100. It includes a fixed plate 1 that can be raised and lowered on the granulator. Multiple air-flow knives 2 are evenly arranged on the fixed plate 1 along the circumference of the granulator 100's discharge port. The centerline of each air-flow knive 2 is adjustable along the radial angle of the discharge port. Compressed air is connected to the air inlet, allowing for adjustable spray angles to adjust the airflow direction according to different material characteristics and production requirements, achieving optimal material-cutting effect. The air-flow knives 2 are arranged in a ring structure around the discharge port, enabling efficient, stable, and consistent automatic material-cutting during extrusion using the thin air-flow knives.

[0037] Specifically, the fixed plate 1 has a ring structure, which is adapted to the shape of the discharge port, making it easier to arrange the airflow knife 2 and simplifying the structure. Three fixed supports 3 are evenly arranged around the discharge port on the granulator 100. Each fixed support 3 includes a first frame 3-1 vertically upward and a second frame 3-2 vertically fixed to the top of the first frame 3-1. A lifting mechanism 4 is located at the end of the second frame 3-2. The lifting mechanism 4 is a cylinder, with its cylinder body fixed to the second frame 3-2. The piston rod is vertically downward and its end is connected to the fixed plate 1, thereby driving the fixed plate 1 to move up and down. A strip-shaped through groove 3-1-1 is provided at the bottom of the first frame 3-1. Bolts that are tightened onto the granulator are located in the strip-shaped through groove 3-1-1, facilitating adjustment of the fixed support 3's position during installation to meet the needs of different sized fixed plates 1, thus accommodating the material cutting requirements of discharge ports with different diameters.

[0038] To achieve automatic control, this embodiment also includes a control system, a solenoid valve, and an air source regulating valve. The air source regulating valve is connected between the air inlet of the airflow knife 2 and the outlet of the compressed air. The cylinder and the airflow knife 2 are electrically connected to the control system through two solenoid valves.

[0039] In this embodiment, based on the size of the discharge port and the width of the airflow knife, six sets of airflow knives are used to ensure that the material discharge port is covered circumferentially, achieving no dead angles. The bottom of the fixed plate 1 is provided with six sets of adjusting seats 5, the same number as the airflow knives 2. The airflow knives 2 are rotatably mounted on the fixed plate 1 via the adjusting seats 5, and the axis of rotation is perpendicular to the radial direction of the fixed plate 1. Specifically, the adjusting seat 5 includes a first seat 5-1 and a second seat 5-2 respectively fixedly connected to the fixed plate 1 and the airflow knife 2, and a screw rod passing through the first seat 5-1 and the second seat 5-2. The first seat 5-1 and the second seat 5-2 are rotatably connected by the screw rod, and a nut is provided at the end of the screw rod. The first seat 5-1 and the second seat 5-2 are locked together by the nut, resulting in a simple structure and convenient adjustment.

[0040] After the processed material is extruded through the cylindrical discharge port of the granulator, the material strip continues to extend outward. A cylinder drives the fixed plate 1 to rise and fall, which in turn drives the airflow knife 2 to rise and fall as well. The airflow knife 2 is connected to compressed air, and under the program control of the control system, it blows out thin air blades. There are six sets of air blades encircling the entire cylindrical material discharge port, ensuring no blind spots. The direction of the airflow is adjusted by the adjusting seat 5, thus achieving the optimal effect of the air blades cutting the material strip. The thin airflow from the airflow knife 2 acts like a blade, effectively cutting the material strip.

[0041] This action is used as a cycle during production to continuously cut the material strip. When the cylinder descends, the air knife starts working, and when the cylinder rises, the air knife stops, which can effectively prevent the air knife from blowing the material strip into the air when it rises.

[0042] This invention features a height-adjustable fixed plate 1, which allows for adjustment of the height of the airflow knife 2 mounted on it relative to the discharge port. The airflow knife 2 is also angle-adjustable, enabling adjustment of the cutting direction. This allows for optimal automatic cutting based on the characteristics of different materials and extrusion speeds, eliminating the need for manual operation. By replacing traditional mechanical blades with the airflow knife 2, a high-speed, thin-sheet directional airflow is formed, enabling efficient, stable, and consistent automatic cutting of continuously extruded cylindrical materials.

[0043] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. 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 blowing and material cutting mechanism applicable to a granulator, characterized in that: It includes a fixed plate that can be raised and lowered on the granulator. Multiple airflow knives are evenly arranged on the fixed plate along the circumference of the granulator's discharge port. The center line of the airflow knives is set at an adjustable radial angle along the discharge port. Compressed air is connected to the air inlet.

2. The air-blowing and material-cutting mechanism applicable to a granulator according to claim 1, characterized in that: The fixing plate has a ring structure.

3. The air-blowing and material-cutting mechanism applicable to a granulator according to claim 2, characterized in that: The granulator is provided with multiple fixed supports evenly distributed around the discharge port. A lifting mechanism is fixedly installed on the top of the support, and the movable end of the lifting mechanism is fixedly connected to the fixed plate.

4. The air-blowing and material-cutting mechanism applicable to a granulator according to claim 3, characterized in that: The lifting mechanism is a cylinder, the cylinder body is fixed on a fixed bracket, and the piston rod is set vertically downward and its end is connected to a fixed plate.

5. The air-blowing and material-cutting mechanism applicable to a granulator according to claim 3, characterized in that: The fixed support includes a first frame that is vertically upward and a second frame that is vertically fixed to the top of the first frame, and the lifting mechanism is installed at the end of the second frame.

6. The air-blowing and material-cutting mechanism applicable to a granulator according to claim 5, characterized in that: The bottom of the first frame is provided with a strip-shaped through groove, and the through groove is provided with bolts that are tightened onto the granulator.

7. The air-blowing and material-cutting mechanism applicable to a granulator according to claim 3, characterized in that: The bottom of the fixed plate is provided with multiple adjustment seats, the same number as the airflow knife. The airflow knife is rotatably mounted on the fixed plate through the adjustment seats, and the rotation axis is perpendicular to the radial direction of the fixed plate.

8. The air-blowing and material-cutting mechanism applicable to a granulator according to claim 7, characterized in that: The adjusting seat includes a first seat body and a second seat body that are fixedly connected to the fixed plate and the airflow knife respectively, and a screw rod that passes through the first seat body and the second seat body. The first seat body and the second seat body are rotatably connected by the screw rod. The end of the screw rod is provided with a nut, and the first seat body and the second seat body are locked by the nut.

9. A blowing and material cutting mechanism applicable to a granulator according to any one of claims 3 to 8, characterized in that: It also includes a control system, a solenoid valve, and an air source regulating valve. The air source regulating valve and the solenoid valve are sequentially connected between the air inlet of the airflow knife and the outlet of the compressed air. The lifting mechanism and the solenoid valve are both electrically connected to the control system.

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