Engineering plastic pulverizer cutter head

Abstract

The utility model discloses an engineering plastic pulverizer cutterhead which comprises a cutterhead plate, crushing blades, suction blades and wear-resistant blades, a mounting hole is formed in the center of the cutterhead plate, the circumferential side wall of the cutterhead plate expands outwards in the radial direction of the mounting hole to form a first mounting bulge and a second mounting bulge, the crushing blades are fixed on the outer edge of the first mounting bulge, and the suction blades are fixed on the outer edge of the second mounting bulge. The multiple suction blades are obliquely and fixedly installed on the outer edge of the second installation protrusion in the same rotation direction, the multiple wear-resisting blades are fixed to the grinding face of the cutter disc plate, and the wear-resisting blades are provided with concave-convex structures. By means of the design, the three sets of blades of different specifications jointly crush materials, the uniformity of produced finished products is higher, the higher machining requirement can be met, the service life of the grinding device is prolonged through the abrasion-resistant blades, suction force can be generated when the obliquely-arranged suction blades rotate, the materials can make contact with the grinding face more easily, and the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of plastic grinding machines, in particular to a cutter disc of an engineering plastic grinding machine. Background Art

[0002] The grinding mill is the main equipment for crushing small pieces of plastic into powder particles. It uses the internal high-speed rotating cutter disc to crush the material. It can also be used to crush some other composite materials. The cutter disc of the grinding mill is a direct component of the crushed material and is very easy to wear. Therefore, it is often necessary to disassemble and replace the cutter disc to maintain the grinding efficiency of the grinding mill. The blade structure of the ordinary cutter disc is too simple. When the degree of crushing of the material is required to be high, the material particles produced by a single grinding of the material cannot meet the processing standards. Utility Model Content

[0003] The utility model aims to provide a cutter disc for an engineering plastic grinding mill, so as to solve the technical problem that the cutter disc of the grinding mill, as a direct component for crushing materials, is very easy to wear, so it is often necessary to disassemble and replace the cutter disc to maintain the crushing efficiency of the grinding mill, and the blade structure of the ordinary cutter disc is too simple. When the crushing degree of the material is required to be high, the material particles produced by a single grinding of the material cannot meet the processing standard.

[0004] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0005] A blade disc for an engineering plastic grinding machine includes a blade disc plate, a crushing blade, a suction blade and a wear-resistant blade. A mounting hole is provided at the center of the blade disc plate. The circumferential side wall of the blade disc plate expands outward along the radial direction of the mounting hole to form a first mounting protrusion and a second mounting protrusion. The crushing blades are fixed to the outer edge of the first mounting protrusion. The suction blades are fixed to the outer edge of the second mounting protrusion at an angle along the same rotation direction. The wear-resistant blades are fixed to the grinding surface of the blade disc plate at an angle. The wear-resistant blades are provided with a concave-convex structure. Through such a design, three groups of blades with different specifications can jointly crush the material, and the finished product has a higher uniformity and can meet higher processing requirements. The wear-resistant blade increases the service life of the present invention. The inclined suction blade will generate suction when rotating, making it easier for the material to contact the grinding surface, thereby increasing the grinding efficiency.

[0006] Furthermore, the crushing blade is a rectangular flat plate structure, the crushing blade is radially arranged evenly along the circumference of the first mounting protrusion, and a chamfer structure is arranged on the same side of the crushing blade and the grinding surface. Through such a design, the crushing blade disc can grind the material more finely.

[0007] Furthermore, the suction blade is a rectangular flat plate structure, and the suction blade is evenly arranged along the circumferential direction of the second mounting protrusion, and the inclined angle α between the suction blade and the second mounting protrusion is 10°-35°. Through such a design, the suction blade generates suction during the rotation process to move the material toward the grinding surface, greatly enhancing the crushing efficiency.

[0008] Furthermore, the inclined angle α between the suction blade and the second mounting protrusion is 25°. With such a design, the angle of 25° is the rightmost angle.

[0009] Furthermore, the cutter disc plate is provided with a mounting groove, and the wear-resistant blade is assembled with the mounting groove.

[0010] Furthermore, the notch of the mounting groove gradually converges in a direction away from the blade disc plate. With such a design, the wear-resistant blade is prevented from falling off from the mounting groove.

[0011] Furthermore, the wear-resistant blade is in a ladder block shape, and the wear-resistant blade is fixed to the blade disc plate by fixing screws.

[0012] Furthermore, the concavo-convex structure is arranged on a side of the wear-resistant blade in the same direction as the rotation direction of the cutter plate, and the concavo-convex structure is convex ridges and concave grooves arranged continuously at intervals. With such a design, the surface of the wear-resistant blade on which the convex ridges and concave grooves are arranged is the surface that collides and crushes the material, and the design of the convex ridges and concave grooves makes the crushing effect of the wear-resistant blade better.

[0013] Furthermore, the top angle of the convex ridge is 90°, and the bottom angle of the concave groove is 90°. Through such a design, the 90° design of the convex ridge and the concave groove takes into account both structural strength and sharpness.

[0014] Furthermore, the top of the wear-resistant blade is an inclined surface. Through such a design, the structural strength of the ridge is enhanced.

[0015] The beneficial effects of the utility model are as follows: three groups of blades of different specifications jointly crush the material, the finished product has higher uniformity and can meet higher processing requirements, the wear-resistant blade increases the service life of the utility model, and the inclined suction blade generates suction when rotating, making it easier for the material to contact the grinding surface, thereby increasing the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a rear view of the utility model (indicating the position of angle α);

[0019] Figure 4 It is a schematic diagram of the overall structure of the utility model (from another perspective);

[0020] Figure 5 It is a side view of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the wear-resistant blade of the utility model;

[0022] Figure 7 This is a schematic diagram of the side structure of the wear-resistant blade of the utility model;

[0023] Explanation of markings in the figure: 1. Cutter plate; 2. Crushing blade; 3. Suction blade; 4. Wear-resistant blade; 5. Mounting hole; 6. First mounting protrusion; 7. Second mounting protrusion; 8. Grinding surface; 9. Concave-convex structure; 10. Mounting groove; 11. Fixing screw; 12. Raised ridge; 13. Concave groove; 14. Inclined surface. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0025] like Figures 1 to 7 shown.

[0026] Example 1

[0027] A cutter disc for an engineering plastic grinding machine comprises a cutter disc plate 1, a crushing blade 2, a suction blade 3 and a wear-resistant blade 4. A mounting hole 5 is arranged at the center of the cutter disc plate 1. The circumferential side wall of the cutter disc plate 1 expands outward along the radial direction of the mounting hole 5 to form a first mounting protrusion 6 and a second mounting protrusion 7. A plurality of the crushing blades 2 are fixed to the outer edge of the first mounting protrusion 6. A plurality of the suction blades 3 are fixedly installed to the outer edge of the second mounting protrusion 7 along the same rotation direction. A plurality of the wear-resistant blades 4 are fixed to the grinding surface 8 of the cutter disc plate 1. The wear-resistant blades 4 are provided with a concave-convex structure 9.

[0028] The crushing blade 2 is a rectangular flat plate structure, and the crushing blade 2 is radially arranged evenly along the circumferential direction of the first mounting protrusion 6. The crushing blade 2 is provided with a chamfer structure on the same side as the grinding surface 8.

[0029] The suction blade 3 is a rectangular flat plate structure, and the suction blade 3 is evenly arranged along the circumferential direction of the second mounting protrusion 7. The inclined angle α between the suction blade 3 and the second mounting protrusion 7 is 10°-35°.

[0030] The inclined angle α between the suction blade 3 and the second mounting protrusion 7 is 25°.

[0031] The implementation of the above embodiment is as follows:

[0032] The crushing blade 2 is used as a conventional blade to grind the material, the wear-resistant blade 4 is thicker and stronger, which increases the service life of the present invention, and the inclined suction blade 3 will generate suction when rotating, making it easier for the material to contact the grinding surface 8, thereby increasing the grinding efficiency. Three groups of blades of different specifications jointly crush the material, and the finished product has a higher uniformity and can meet higher processing requirements.

[0033] Example 2

[0034] The cutter plate 1 is provided with a mounting groove 10 , and the wear-resistant blade 4 is assembled with the mounting groove 10 .

[0035] The notch of the mounting groove 10 gradually converges in a direction away from the cutter plate 1 .

[0036] The wear-resistant blade 4 is in a ladder block shape and is fixed to the blade disc plate 1 by fixing screws 11 .

[0037] The concavo-convex structure 9 is arranged on a side of the wear-resistant blade 4 which is in the same direction of rotation as the cutter plate 1 , and the concavo-convex structure 9 is a convex ridge 12 and a concave groove 13 which are arranged continuously and at intervals.

[0038] The top angle of the convex ridge 12 is 90°, and the bottom angle of the concave groove 13 is 90°.

[0039] The top of the wear-resistant blade 4 is an inclined surface 14 .

[0040] The implementation method of the above embodiment is as follows: the wear-resistant blade 4 is pushed in from the opening of the mounting groove 10, and then the wear-resistant blade 4 is tightened by the fixing screw 11. The closing design of the mounting groove 10 is to prevent the wear-resistant blade 4 from falling off along the axial direction of the cutter disc plate 1. The surface of the wear-resistant blade 4 on which the ridges 12 and the grooves 13 are provided is the surface that collides and breaks the material. The design of the ridges 12 and the grooves 13 makes the crushing effect of the wear-resistant blade 4 better. The design of the inclined surface 14 makes the top angle of the ridge 12 become a larger obtuse angle, thereby enhancing the structure of the ridge 12.

[0041] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A cutter disc for an engineering plastic grinding machine, characterized in that: The invention comprises a cutter plate (1), a crushing blade (2), a suction blade (3) and a wear-resistant blade (4); a mounting hole (5) is arranged at the center of the cutter plate (1); a circumferential side wall of the cutter plate (1) expands outward along the radial direction of the mounting hole (5) to form a first mounting protrusion (6) and a second mounting protrusion (7); a plurality of the crushing blades (2) are fixed to the outer edge of the first mounting protrusion (6); a plurality of the suction blades (3) are fixedly installed on the outer edge of the second mounting protrusion (7) at an angle along the same rotation direction; a plurality of the wear-resistant blades (4) are fixed to the grinding surface (8) of the cutter plate (1); and the wear-resistant blade (4) is provided with a concave-convex structure (9).

2. The engineering plastics grinding machine cutter disc according to claim 1, characterized in that: The crushing blade (2) is a rectangular flat plate structure, the crushing blade (2) is radially arranged evenly along the circumferential direction of the first mounting protrusion (6), and a chamfer structure is provided on a side of the crushing blade (2) on the same side as the grinding surface (8).

3. The engineering plastics grinding machine cutter disc according to claim 1, characterized in that: The suction blade (3) is a rectangular flat plate structure; the suction blade (3) is evenly arranged along the circumferential direction of the second mounting protrusion (7); and the inclined angle α between the suction blade (3) and the second mounting protrusion (7) is 10°-35°.

4. The engineering plastics grinding machine cutter disc according to claim 3, characterized in that: The inclined angle α between the suction blade (3) and the second mounting protrusion (7) is 25°.

5. The engineering plastics grinding machine cutter disc according to claim 1, characterized in that: The cutter disc plate (1) is provided with a mounting groove (10), and the wear-resistant blade (4) is assembled with the mounting groove (10).

6. The engineering plastics grinding machine cutter disc according to claim 5, characterized in that: The notch of the installation groove (10) gradually converges in a direction away from the cutter disc plate (1).

7. The engineering plastics grinding machine cutter disc according to claim 6, characterized in that: The wear-resistant blade (4) is in the shape of a ladder block, and the wear-resistant blade (4) is fixed to the blade disc plate (1) via a fixing screw (11).

8. The engineering plastics grinding machine cutter disc according to claim 1, characterized in that: The concave-convex structure (9) is arranged on a side of the wear-resistant blade (4) that is in the same direction of rotation as the blade disc plate (1), and the concave-convex structure (9) is a series of convex ridges (12) and concave grooves (13) arranged at intervals.

9. The engineering plastics grinding machine cutter disc according to claim 8, characterized in that: The top angle of the convex ridge (12) is 90°, and the bottom angle of the concave groove (13) is 90°.

10. The engineering plastics grinding machine cutter disc according to claim 8, characterized in that: The top of the wear-resistant blade (4) is an inclined surface (14).

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