Cutter group structure of underwater plastic particle cutting device

Abstract

The utility model discloses a cutter group structure of an underwater plastic particle cutting device, which relates to the technical field of plastic processing equipment and comprises a moving plate and a cutter head, a motor is fixedly mounted at the upper end of the moving plate, a driving shaft is fixedly mounted at the output end of the motor, one end of the driving shaft is welded with a connecting seat, and the other end of the driving shaft is welded with the cutter head. The cutter head is inserted into the side, away from the driving shaft, of the connecting base. By the adoption of the structure, the blade is inserted into the limiting groove of the tool apron in a limited mode, after the blade is inserted into the limiting groove, limiting of the blade can be directly achieved, the clamping hole corresponds to the inserting rod in position, then the installation plate is inserted into the inserting groove of the tool apron, and meanwhile the inserting rod on the installation plate can be inserted into the clamping hole of the blade through the penetrating hole. And finally, the mounting plate is fixed on the tool apron through a second mounting bolt, and during disassembly, only the second mounting bolt and the mounting plate need to be taken down, so that the blade can be quickly disassembled, assembled and replaced conveniently.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic processing equipment, and specifically relates to the blade assembly structure of an underwater plastic pelletizing device. Background Technology

[0002] Currently, the common practice in the market for processing plastic granules is to use a water-cooled hot-cutting process. This process involves molten material at high temperature passing through the die head orifice under the pressure of the screw extrusion, and the extruded strip material being cut by a high-speed rotating cutter head that is close to the die head plane. The cut material particles are then cooled and solidified by cooling water in the water chamber, producing solid finished plastic granules.

[0003] A search revealed that Chinese Patent CN220763172U discloses a fast-rotating underwater pelletizer holder, which includes a holder with blades and channels, and a first elastic member fixedly installed between every two blades. A cavity is formed between the multiple first elastic members, and the first elastic members tend to move towards the outer ring of the holder.

[0004] When installing the pelletizer blades in the aforementioned prior art, the blades need to be inserted into the blade holder, and then the mounting holes on the blades need to be aligned with the mounting slots on the blade holder before finally being fixed in place with multiple screws. This traditional installation method firstly fails to ensure that the mounting holes on the blades and the corresponding connecting holes on the blade holder directly overlap when the blades are inserted into the blade holder, and secondly, the installation and disassembly of the multiple screws is cumbersome and inconvenient. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a blade assembly structure for an underwater plastic pelletizing device to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A blade assembly structure for an underwater plastic pelletizing device includes a movable plate and a blade disc. A motor is fixedly mounted on the upper end of the movable plate, and a drive shaft is fixedly mounted on the output end of the motor. A connecting seat is welded to one end of the drive shaft. The blade disc is inserted into the connecting seat on the side away from the drive shaft. A first mounting bolt is provided on the inner side of the blade disc, and the blade disc is fixedly mounted by the first mounting bolt and the connecting seat. A blade holder is welded at equal angles on the outer side of the blade disc. A limiting groove is formed on one side of the blade holder, and a blade is inserted into the inner side of the limiting groove. A locking hole is formed on the inner side of the blade, and the blade holder is inserted into the locking hole through a connecting mechanism.

[0008] The connecting mechanism includes a slot, which is located on the side of the tool holder away from the limiting groove. Symmetrical through holes are provided on the inner side of the slot, and the slot communicates with the limiting groove through the through holes. A mounting plate is inserted into the inner side of the slot, and a rod is fixedly installed on one side of the mounting plate. The end of the rod away from the mounting plate is inserted into the inner side of the locking hole. A second mounting bolt is provided on the inner side of the mounting plate, and the mounting plate is fixedly installed by the second mounting bolt and the slot. A holding component is symmetrically provided on the outer side of the mounting plate.

[0009] As a preferred technical solution, the operating component includes a groove, which is symmetrically opened on the outside of the tool holder. One side of the groove communicates with the slot. A connecting block is fixedly installed at the end of the mounting plate. The connecting block is inserted into the inside of the groove. An operating block is fixedly installed on the side of the connecting block away from the mounting plate.

[0010] As a preferred technical solution, the side of the operating block away from the connecting block is semi-circular, and the semi-circular part of the operating block is provided with grooves at equal angles.

[0011] As a preferred technical solution, a countersunk hole is provided on the inner side of the mounting plate, the second mounting bolt is provided on the inner side of the countersunk hole, a retaining groove is provided on the inner side of the countersunk hole, and a second retaining spring is engaged on the inner side of the retaining groove.

[0012] As a preferred technical solution, a threaded groove is provided on the inner side of the slot, and the threaded end of the second mounting bolt passes through the threaded groove of the mounting plate and the tool holder for fixed installation.

[0013] As a preferred technical solution, a limiting block is symmetrically fixedly installed on the outer side of the blade, and the blade is inserted into the limiting block and the limiting groove. A support block is fixedly installed on the side of the blade holder near the opening of the limiting groove, and the support block is located on the side of the blade tip.

[0014] As a preferred technical solution, a positioning post is fixedly installed at an equal angle on the outer side of the connecting seat, and a positioning hole is opened on the inner side of the cutter head. The positioning post and the positioning hole are connected by an insertion. A first retaining spring is snapped into the center hole of the cutter head. The first retaining spring is located on the side of the end of the first mounting bolt.

[0015] In summary, the present invention has the following main advantages:

[0016] First, insert the blade limiter into the limiter slot of the tool holder. After insertion, the blade can be directly limited, and the positions of the locking hole and the insertion rod will correspond accordingly. Then, insert the mounting plate into the slot of the tool holder. At the same time, the insertion rod on the mounting plate can be inserted into the locking hole of the blade through the through hole. Finally, fix the mounting plate to the tool holder with a second mounting bolt. When disassembling, simply remove this second mounting bolt and the mounting plate, which makes it easy to quickly disassemble and replace the blade.

[0017] Secondly, when assembling or disassembling the mounting plate, since the mounting plate is connected to the operating block via the connecting block, the mounting plate can be inserted into or removed from the slot of the tool holder via the operating block, which further facilitates the assembly and disassembly of the blade.

[0018] Third, by positioning and inserting the cutter head into the connector, and then using the first mounting bolt, the cutter head can be easily and quickly installed and fixed on the connector. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is the utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is an exploded view of the connecting mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the tool holder structure of this utility model.

[0023] Reference numerals: 1. Moving plate; 2. Motor; 3. Drive shaft; 4. Connecting seat; 6. Cutter head; 7. Positioning hole; 8. Positioning pin; 9. First mounting bolt; 10. First snap ring; 11. Cutter holder; 12. Blade; 13. Connecting mechanism; 131. Slot; 132. Through hole; 133. Mounting plate; 134. Insert rod; 135. Second mounting bolt; 14. Limiting block; 15. Limiting groove; 16. Support block; 17. Locking hole; 18. Locking groove; 19. Second snap ring; 20. Threaded groove; 21. Holding assembly; 211. Groove; 212. Connecting block; 213. Operating block; 22. Countersunk hole; 23. Slot. Detailed Implementation

[0024] refer to Figures 1 to 4 The blade assembly structure of the underwater plastic pelletizing device described in this embodiment includes a movable plate 1 and a blade disc 6. A motor 2 is fixedly installed on the upper end of the movable plate 1, and a drive shaft 3 is fixedly installed on the output end of the motor 2. A connecting seat 4 is welded to one end of the drive shaft 3. The blade disc 6 is inserted into the connecting seat 4 on the side away from the drive shaft 3. A first mounting bolt 9 is provided on the inner side of the blade disc 6. The blade disc 6 is fixedly installed to the connecting seat 4 by the first mounting bolt 9. A blade holder 11 is welded to the outer side of the blade disc 6 at equal angles. A limiting groove 15 is opened on one side of the blade holder 11. A blade 12 is inserted into the inner side of the limiting groove 15. A locking hole 17 is opened on the inner side of the blade 12. The blade holder 11 is inserted into the locking hole 17 through a connecting mechanism 13. By positioning the blade disc 6 into the connecting seat 4 and then using the first mounting bolt 9, the blade disc 6 can be quickly and easily installed and fixed on the connecting seat 4.

[0025] The connecting mechanism 13 includes a slot 131, which is located on the side of the tool holder 11 away from the limiting groove 15. Symmetrical through holes 132 are provided on the inner side of the slot 131, allowing communication between the slot 131 and the limiting groove 15. A mounting plate 133 is inserted into the inner side of the slot 131. A rod 134 is fixedly mounted on one side of the mounting plate 133, with one end of the rod 134 away from the mounting plate 133 inserted into the inner side of the locking hole 17. A second mounting bolt 135 is provided on the inner side of the mounting plate 133, and the mounting plate 133 is fixedly mounted to the slot 131 via the second mounting bolt 135. The outer side of the 3 is symmetrically provided with a holding component 21. When installing the blade 12, the blade 12 is inserted into the limiting groove 15 of the tool holder 11. Then, the mounting plate 133 is inserted into the slot 131 of the tool holder 11. At the same time, the insertion rod 134 on the mounting plate 133 can be inserted into the locking hole 17 of the blade 12 through the through hole 132. Finally, the mounting plate 133 is fixed to the tool holder 11 by a second mounting bolt 135. When disassembling, only the second mounting bolt 135 and the mounting plate 133 need to be removed, so that the blade 12 can be quickly disassembled and replaced.

[0026] refer to Figure 3 The holding component 21 includes a groove 211, which is symmetrically opened on the outside of the tool holder 11. One side of the groove 211 communicates with the slot 131. A connecting block 212 is fixedly installed at the end of the mounting plate 133. The connecting block 212 is inserted into the inside of the groove 211. An operating block 213 is fixedly installed on the side of the connecting block 212 away from the mounting plate 133. When the mounting plate 133 is disassembled or assembled, since the mounting plate 133 is connected to the operating block 213 through the connecting block 212, the mounting plate 133 can be inserted into or removed from the slot 131 of the tool holder 11 through the operating block 213, thereby further facilitating the disassembly and assembly of the blade 12.

[0027] refer to Figure 3 The side of the operating block 213 away from the connecting block 212 is semi-circular. The semi-circular part of the operating block 213 is provided with grooves 23 at equal angles. The grooves 23 on the semi-circular part of the operating block 213 can increase friction, making it convenient for the user to operate the mounting plate 133 through the operating block 213.

[0028] refer to Figure 3The mounting plate 133 has a countersunk hole 22 on its inner side. The second mounting bolt 135 is located inside the countersunk hole 22. The countersunk hole 22 has a groove 18 on its inner side. The groove 18 is engaged with a second retaining spring 19. The second retaining spring 19 can be easily installed through the groove 18 at the countersunk hole 22 on the mounting plate 133. The second retaining spring 19 can be used to limit the second mounting bolt 135, thereby improving the stability and safety of the blade 12 installation.

[0029] refer to Figure 3 The inner side of the slot 131 is provided with a screw groove 20. The threaded end of the second mounting bolt 135 passes through the screw groove 20 of the mounting plate 133 and the tool holder 11 for fixed installation. The second mounting bolt 135 can be installed and fixed to the tool holder 11 by passing through the screw groove 20 on the slot 131.

[0030] refer to Figure 3 and Figure 4 Limiting blocks 14 are symmetrically fixedly installed on the outer side of the blade 12. The blade 12 is inserted into the limiting groove 15 through the limiting blocks 14. A support block 16 is fixedly installed on the side of the blade holder 11 near the opening of the limiting groove 15. The support block 16 is located on the side of the blade head of the blade 12. Through the limiting blocks 14 on the blade 12, the blade 12 can be limited to be inserted into the limiting groove 15 of the blade holder 11. Through the support block 16 on the blade holder 11, a certain support effect can be provided on one side of the blade 12, increasing the stability of the blade head of the blade 12.

[0031] refer to Figure 2 A positioning post 8 is fixedly installed at an equal angle on the outer side of the connecting seat 4. A positioning hole 7 is opened on the inner side of the cutter head 6. The positioning post 8 and the positioning hole 7 are connected by an insertion. A first retaining spring 10 is snapped into the center hole of the cutter head 6. The first retaining spring 10 is located on the side of the end of the first mounting bolt 9. After the cutter head 6 is inserted into the positioning post 8 on the connecting seat 4 through the positioning hole 7, the first mounting bolt 9 can be easily inserted through the cutter head 6 and fixed to the connecting seat 4. With the first retaining spring 10 snapped into the cutter head 6, the first mounting bolt 9 can be positioned at the upper limit of the cutter head 6 by the first retaining spring 10, thereby improving the stability of the cutter head 6 installation.

[0032] Operating principle and advantages: When installing the cutter head 6, the cutter head 6 is inserted into the positioning post 8 on the connecting seat 4 through the positioning hole 7, and then the first mounting bolt 9 can be used to easily fix the cutter head 6 to the connecting seat 4, and the first snap ring 10 on the cutter head 6 can be used to lock it in place.

[0033] When installing the blade 12, the blade 12 is inserted into the limiting groove 15 of the tool holder 11, and then the mounting plate 133 is inserted into the slot 131 of the tool holder 11. At the same time, the insertion rod 134 on the mounting plate 133 can be inserted into the retaining hole 17 of the blade 12 through the through hole 132. Finally, the mounting plate 133 is fixed to the tool holder 11 by a second mounting bolt 135. When disassembling, it is only necessary to remove the second mounting bolt 135 and the mounting plate 133. Since the mounting plate 133 is connected to the operating block 213 through the connecting block 212, the mounting plate 133 can be inserted into or removed from the slot 131 of the tool holder 11 through the operating block 213, which facilitates the installation and removal of the blade 12.

Claims

1. A blade assembly structure for an underwater plastic pelletizing device, characterized in that... The device includes a movable plate (1) and a cutter head (6). A motor (2) is fixedly installed on the upper end of the movable plate (1). A drive shaft (3) is fixedly installed on the output end of the motor (2). A connecting seat (4) is welded to one end of the drive shaft (3). The cutter head (6) is inserted into the connecting seat (4) on the side away from the drive shaft (3). A first mounting bolt (9) is provided on the inner side of the cutter head (6). The cutter head (6) is fixedly installed by the first mounting bolt (9) and the connecting seat (4). A cutter holder (11) is welded at equal angles on the outer side of the cutter head (6). A limit groove (15) is opened on one side of the cutter holder (11). A blade (12) is inserted into the inner side of the limit groove (15). A locking hole (17) is opened on the inner side of the blade (12). The cutter holder (11) is inserted into the locking hole (17) through a connecting mechanism (13). The connecting mechanism (13) includes a slot (131), which is located on the side of the tool holder (11) away from the limiting groove (15). The inner side of the slot (131) is symmetrically provided with through holes (132). The slot (131) communicates with the limiting groove (15) through the through holes (132). A mounting plate (133) is inserted into the inner side of the slot (131). A plug rod (134) is fixedly installed on one side of the mounting plate (133). The end of the plug rod (134) away from the mounting plate (133) is inserted into the inner side of the locking hole (17). A second mounting bolt (135) is provided on the inner side of the mounting plate (133). The mounting plate (133) is fixedly installed with the slot (131) through the second mounting bolt (135). A holding component (21) is symmetrically provided on the outer side of the mounting plate (133).

2. The blade assembly structure of the underwater plastic pelletizing device according to claim 1, characterized in that: The operating component (21) includes a groove (211) symmetrically opened on the outside of the tool holder (11). One side of the groove (211) communicates with the slot (131). A connecting block (212) is fixedly installed at the end of the mounting plate (133). The connecting block (212) is inserted into the inside of the groove (211). An operating block (213) is fixedly installed on the side of the connecting block (212) away from the mounting plate (133).

3. The blade assembly structure of the underwater plastic pelletizing device according to claim 2, characterized in that: The side of the operating block (213) away from the connecting block (212) is semi-circular, and the semi-circular part of the operating block (213) is provided with grooves (23) at equal angles.

4. The blade assembly structure of an underwater plastic pelletizing device according to claim 1, characterized in that: The mounting plate (133) has a countersunk hole (22) on its inner side, and the second mounting bolt (135) is located inside the countersunk hole (22). The countersunk hole (22) has a groove (18) on its inner side, and a second retaining spring (19) is engaged inside the groove (18).

5. The blade assembly structure of an underwater plastic pelletizing device according to claim 1, characterized in that: The slot (131) has a threaded groove (20) on its inner side, and the threaded end of the second mounting bolt (135) passes through the threaded groove (20) of the mounting plate (133) and the tool holder (11) for fixed installation.

6. The blade assembly structure of an underwater plastic pelletizing device according to claim 1, characterized in that: Limiting blocks (14) are symmetrically fixedly installed on the outer side of the blade (12). The blade (12) is inserted into the limiting block (14) and the limiting groove (15). A support block (16) is fixedly installed on the side of the blade holder (11) near the opening of the limiting groove (15). The support block (16) is located on the side of the blade head of the blade (12).

7. The blade assembly structure of an underwater plastic pelletizing device according to claim 1, characterized in that: A positioning post (8) is fixedly installed at an equal angle on the outer side of the connecting seat (4). A positioning hole (7) is opened on the inner side of the cutter head (6). The positioning post (8) and the positioning hole (7) are connected by insertion. A first retaining spring (10) is snapped into the center hole of the cutter head (6). The first retaining spring (10) is located on the side of the end of the first mounting bolt (9).

Images