Particle slitting mechanism of plastic particle granulator

Abstract

A particle slitting mechanism of a plastic particle granulator is used for solving the technical problems that particle slitting mechanisms of some plastic particle granulators mentioned in the background technology need to be disassembled to clean blades, however, the mode needs to be stopped for cleaning, and production is not facilitated. Comprising a workbench, a mounting frame is fixedly arranged on the workbench, a telescopic piece is fixedly arranged on a transverse plate of the mounting frame, and a cutter is fixedly arranged on the telescopic piece; a first motor is arranged on the workbench, the output end of the first motor is connected with a first transmission shaft, the first transmission shaft is in threaded connection with a first sliding block, a limiting rod is fixedly arranged on the first motor, and the first sliding block slidably sleeves the limiting rod; a second motor is fixedly arranged on the first sliding block, the output end of the second motor is connected with a second transmission shaft, two second sliding blocks are connected to the two rod sections in a threaded mode, a connecting rod is fixedly arranged on the side wall of the first sliding block, the second transmission shaft is arranged on the connecting rod in a sliding and sleeving mode, and scraping plates are fixedly arranged on the two second sliding blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle processing, in particular to a particle cutting mechanism of a plastic particle granulator. Background Art

[0002] Plastics are ubiquitous in our daily lives. During the plastic granulation process, the raw plastic material is first crushed into small pieces. Then, it is melted at high temperatures to convert the plastic into a liquid state. An extruder then squeezes the molten plastic into strips, which are then cut into small pellets using a cutter.

[0003] Prior art, such as the utility model patent document with authorization announcement number "CN221774974U" and patent name "A Plastic Pellet Granulator", discloses a plastic pellet granulator, which includes a base plate, a feeding mechanism, a pelletizing mechanism and a vibration mechanism; the base plate: the upper end of which is fixedly connected to a pelletizing box, and the interior of the pelletizing box is fixedly connected to a screening plate; the feeding mechanism: which is arranged at the feed port opened at the upper end of the pelletizing box; the pelletizing mechanism: which is arranged inside the upper end of the pelletizing box; the vibration mechanism: which is arranged inside the lower end of the pelletizing box, and the upper end of the vibration mechanism is in contact with the lower end of the screening plate. The plastic pellet granulator is mechanically driven to rotate, pull and cut the plastic, and is equipped with an auxiliary feeding device to prevent damage to the plastic strips during the feeding process, and cuts the plastic strips by controlling the rotation speed of the blade.

[0004] However, when the above patent is actually used, plastic may stick to the blade during cutting, affecting the pelletizing effect of the cutting knife. Therefore, the device needs to be disassembled to clean the blade. However, this method requires stopping the machine for cleaning, which is not conducive to production. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a particle cutting mechanism for a plastic particle granulator, which is used to solve the problem mentioned in the background technology that in actual use, the particle cutting mechanism of some plastic particle granulators may cause plastic to stick to the blade during cutting, affecting the pelletizing effect of the cutting knife. Therefore, the device needs to be disassembled to clean the blade. However, this method requires stopping the machine for cleaning, which is not conducive to production.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A particle cutting mechanism of a plastic particle granulator comprises a workbench, a mounting frame is fixedly provided on the workbench, the mounting frame is composed of two vertical plates and a horizontal plate fixedly provided between the two vertical plates, a telescopic member is fixedly provided on the horizontal plate of the mounting frame, a cutter is fixedly provided on the telescopic member, the telescopic member is used to drive the cutter to move vertically to cut the plastic on the workbench; a first motor is provided on the workbench, an output end of the first motor is connected to a first transmission shaft, the length direction of the first transmission shaft is consistent with the length direction of the cutter, a first sliding block is threadedly connected to the first transmission shaft, and a first motor is connected to the first motor. A limit rod is fixedly provided with the same length direction as the first transmission shaft, and the first sliding block is slidably mounted on the limit rod; a second motor is fixedly provided on the first sliding block, and the output end of the second motor is connected to the second transmission shaft, the length direction of the second transmission shaft is perpendicular to the length direction of the cutter, and the second transmission shaft is divided into two rod sections with opposite thread directions, and two second sliding blocks are threadedly connected to the two rod sections, a connecting rod is fixedly provided on the side wall of the first sliding block, and the second transmission shaft is slidably mounted on the connecting rod, and scrapers are fixedly provided on the two second sliding blocks, and the two scrapers are used to scrape off the plastic bonded to both sides of the cutter.

[0008] Working principle:

[0009] When plastic is stuck on the cutter, use the telescopic part to move the cutter vertically upward so that the area to be cleaned on the cutter is located between the two scrapers;

[0010] Then, the second motor is started, and the output end of the second motor drives the second transmission shaft to rotate. The rotation of the second transmission shaft drives the two second sliding blocks to move closer to each other, so that the two scrapers are closely attached to the two sides of the cutter.

[0011] Then start the first motor, and the output end of the first motor drives the first transmission shaft to rotate. The rotation of the first transmission shaft causes the first sliding block, two second sliding blocks, and two scrapers to move along the length direction of the cutter, so that the two scrapers move back and forth to scrape off the plastic stuck on both sides of the cutter.

[0012] Beneficial effects:

[0013] 1. By setting a second motor, a second transmission shaft, a second sliding block, a connecting rod, and two scrapers, starting the second motor drives the two scrapers to approach each other and cling to both sides of the cutter, so that the distance between the two scrapers can be adjusted according to the thickness of different cutters. The application range of this device is wide and the scraping effect is better. When the second sliding block moves back and forth, it slides around the second transmission shaft. The connecting rod can limit the second sliding block, making the back and forth movement of the second sliding block more stable.

[0014] 2. By setting the first motor, the first transmission shaft, the first sliding block and the limit rod, when the two scrapers are close to the cutter, the first motor is started to drive the two scrapers to move back and forth, thereby scraping off the plastic adhering to both sides of the cutter, preventing the plastic adhesion from affecting the pelletizing effect and ensuring the quality of plastic pellet manufacturing; when the first sliding block moves back and forth, it will slide around the periphery of the first transmission shaft, and the limit rod can limit the first sliding block, making the back and forth movement of the first sliding block more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the assembly of the first transmission shaft, the second transmission shaft, the second sliding block, the scraper, and the baffle from a top view.

[0017] In the above drawings: workbench 1, mounting frame 2, cutter 3, mounting part 301, main body 302, first motor 4, first transmission shaft 5, first sliding block 6, limiting rod 7, second motor 8, second transmission shaft 9, second sliding block 10, connecting rod 11, scraper 12, connecting part 1201, working part 1202, baffle 13, third motor 14, third transmission shaft 15, second fixed block 16, third sliding block 17, first fixed block 18, slider 19, gas rod 20, and slide groove 21. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0019] Example:

[0020] like Figure 1 and Figure 2As shown, a particle cutting mechanism of a plastic particle granulator comprises a workbench 1, on which a mounting frame 2 is fixedly provided, and the mounting frame 2 is composed of two vertical plates and a horizontal plate fixedly provided between the two vertical plates, and a telescopic member is fixedly provided on the horizontal plate of the mounting frame 2, on which a cutter 3 is fixed, and the telescopic member is used to drive the cutter 3 to move vertically to cut the plastic on the workbench 1; the workbench 1 is provided with a first motor 4, and an output end of the first motor 4 is connected to a first transmission shaft 5, and the length direction of the first transmission shaft 5 is consistent with the length direction of the cutter 3, and a first sliding block 6 is threadedly connected to the first transmission shaft 5, and the first motor 4 is fixed with a first sliding block 6 The first transmission shaft 5 has a limit rod 7 in the same length direction, and the first sliding block 6 is slidably mounted on the limit rod 7; the first sliding block 6 is fixedly provided with a second motor 8, and the output end of the second motor 8 is connected to the second transmission shaft 9, and the length direction of the second transmission shaft 9 is perpendicular to the length direction of the cutter 3, and the second transmission shaft 9 is divided into two rod sections with opposite thread directions, and two second sliding blocks 10 are threadedly connected to the two rod sections, and a connecting rod 11 is fixedly provided on the side wall of the first sliding block 6, and two second sliding blocks 10 are slidably mounted on the connecting rod 11, and scrapers 12 are fixedly provided on the two second sliding blocks 10, and the two scrapers 12 are used to scrape off the plastic bonded to both sides of the cutter 3.

[0021] By arranging a second motor 8, a second transmission shaft 9, a second sliding block 10, a connecting rod 11, and two scrapers 12, starting the second motor 8 drives the two scrapers 12 to approach each other and cling to both sides of the cutter 3, so that the distance between the two scrapers 12 can be adjusted according to the thickness of the cutter 3. The device has a wide range of applications and a better scraping effect. When the second sliding block 10 moves back and forth, it slides around the second transmission shaft 9. The connecting rod 11 can limit the second sliding block 10, making the back and forth movement of the second sliding block 10 more stable.

[0022] By setting the first motor 4, the first transmission shaft 5, the first sliding block 6, and the limiting rod 7, the first motor 4 is in forward and reverse rotation. When the two scrapers 12 are close to the cutter 3, the first motor 4 is started to drive the two scrapers 12 to move back and forth, thereby scraping off the plastic adhering to both sides of the cutter 3, preventing the plastic adhesion from affecting the pelletizing effect, and ensuring the quality of plastic pellet manufacturing; when the first sliding block 6 moves back and forth, it will slide around the first transmission shaft 5. The limiting rod 7 can limit the first sliding block 6, making the back and forth movement of the first sliding block 6 more stable. Figure 1 and Figure 2 As shown, a baffle 13 is fixed to the other end of the connecting rod 11, and the second transmission shaft 9 is rotatably arranged in the baffle 13. The setting of the baffle 13 can prevent the second sliding block 10 from moving out of the second transmission shaft 9 when moving on the second transmission shaft 9, thereby causing the scraper 12 to fall and cause injury to others.

[0023] like Figure 1 As shown, the workbench 1 is provided with a third motor 14, the output end of which is connected to a third transmission shaft 15. The length of the third transmission shaft 15 is consistent with the length of the second transmission shaft 9. The workbench 1 is also fixed with a second fixed block 16, with the other end of the third transmission shaft 15 rotatably mounted on the second fixed block 16. A third sliding block 17 is threadedly connected to the third transmission shaft 15, the bottom of which is slidably connected to the workbench 1, and the first motor 4 is fixed to the top of the third sliding block 17. The workbench 1 is also fixed with a first fixed block 18, with a slider 19 slidably mounted on the first fixed block 18, and the other end of the first transmission shaft 5 is rotatably mounted within the slider 19. The other end of the limit rod 7 is fixed to the slider 19. When the third motor 14 is activated, the third sliding block 17, the first motor 4, the slider 19, and the two scrapers 12 move along the third transmission shaft 15, thereby driving the two scrapers 12 away from the cutter 3 to prevent obstruction of the cutter 3 during its lifting and lowering process and damage to the cutter 3.

[0024] like Figure 2 As shown, the scraper 12 is divided into a connecting portion 1201 and a working portion 1202. The connecting portion 1201 is fixedly connected to the second sliding block 10. The two working portions 1202 have an inclined surface on the opposite side, and the two inclined surfaces are inclined in the direction in which the two working portions 1202 approach each other. The inclined working portion 1202 can change the angle of the scraper 12's cutting, thereby increasing the contact area between the scraper 12 and the cutter 3 and improving the scraping effect. It also reduces lateral pressure during scraping, alleviates wear on the scraper 12, and thus extends the service life of the scraper 12.

[0025] like Figure 1 As shown, the telescopic member is a gas rod 20, the telescopic end of the gas rod 20 slides through the horizontal plate of the mounting frame 2, and the cutter 3 is fixed to the end of the gas rod 20 passing through the horizontal plate of the mounting frame 2. This method of raising and lowering the cutter 3 by the gas rod 20 is mechanized and automated, and is easy to operate.

[0026] like Figure 1 As shown, vertical slots 21 are formed on both vertical plates of the mounting frame 2. The cutter 3 includes a mounting portion 301 and a body portion 302. The mounting portion 301 is made of wood and is fixedly connected to the telescopic end of the gas rod 20. The ends of the mounting portion 301 slide vertically within the two slots 21. The provision of the slots 21 prevents the cutter 3 from deflecting during vertical sliding, thereby affecting the quality of the plastic pellets produced.

[0027] Working principle:

[0028] When plastic sticks to the cutter 3, the gas rod 20 is started, and the telescopic end of the gas rod 20 drives the cutter 3 to move vertically upward; then the third motor 14 is started, and the output end of the third motor 14 drives the third transmission shaft 15 to rotate. The rotation of the third transmission shaft 15 drives the third sliding block 17, the first motor 4, the slider 19, and the two scrapers 12 to move along the third transmission shaft 15, driving the two scrapers 12 to be located below the cutter 3; the gas rod 20 is started again, and the telescopic end of the gas rod 20 drives the cutter 3 to move vertically downward, so that the area to be cleaned on the cutter 3 is located between the two scrapers 12;

[0029] Then the second motor 8 is started, and the output end of the second motor 8 drives the second transmission shaft 9 to rotate. The rotation of the second transmission shaft 9 drives the two second sliding blocks 10 to move closer to each other, so that the two scrapers 12 are close to the two sides of the cutter 3;

[0030] Then start the first motor 4, and the output end of the first motor 4 drives the first transmission shaft 5 to rotate. The rotation of the first transmission shaft 5 causes the first sliding block 6 and the two scrapers 12 to move along the length direction of the cutter 3. The two scrapers 12 move back and forth to scrape off the plastic stuck on both sides of the cutter 3, and the whole operation is completed.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A particle cutting mechanism for a plastic particle granulator, characterized by: The invention comprises a workbench (1), wherein a mounting frame (2) is fixedly provided on the workbench (1), wherein the mounting frame (2) is composed of two vertical plates and a horizontal plate fixedly provided between the two vertical plates, wherein a telescopic member is fixedly provided on the horizontal plate of the mounting frame (2), wherein a cutter (3) is fixedly provided on the telescopic member, and wherein the telescopic member is used to drive the cutter (3) to move vertically so as to cut the plastic on the workbench; wherein a first motor (4) is provided on the workbench (1), wherein an output end of the first motor (4) is connected to a first transmission shaft (5), wherein the length direction of the first transmission shaft (5) is consistent with the length direction of the cutter (3), wherein a first sliding block (6) is threadedly connected to the first transmission shaft (5), wherein a first sliding block (6) is fixedly provided on the first motor (4) and a first sliding block (7) is screwedly provided on the first transmission shaft (5), wherein a first sliding block (7) is screwedly provided on the first motor (4) and ... The limiting rod (7) is fixed on the first sliding block (6), and the first sliding block (6) is slidably mounted on the limiting rod (7); the first sliding block (6) is fixedly provided with a second motor (8), and the output end of the second motor (8) is connected to a second transmission shaft (9), and the length direction of the second transmission shaft (9) is perpendicular to the length direction of the cutter (3); the second transmission shaft (9) is divided into two rod sections with opposite thread directions, and two second sliding blocks (10) are threadedly connected to the two rod sections; the side wall of the first sliding block (6) is fixedly provided with a connecting rod (11), and the two second sliding blocks (10) are slidably mounted on the connecting rod (11), and the two second sliding blocks (10) are fixedly provided with scrapers (12), and the two scrapers (12) are used to scrape off plastic adhered to both sides of the cutter (3).

2. The particle cutting mechanism of the plastic particle granulator according to claim 1, characterized in that: A baffle (13) is fixedly provided at the other end of the connecting rod (11), and the second transmission shaft (9) is rotatably arranged in the baffle (13).

3. The particle cutting mechanism of the plastic particle granulator according to claim 1, characterized in that: The workbench (1) is provided with a third motor (14), the output end of the third motor (14) is connected to a third transmission shaft (15), the length direction of the third transmission shaft (15) is consistent with the length direction of the second transmission shaft (9), and the workbench (1) is also fixed with a second fixed block (16), the other end of the third transmission shaft (15) is rotatably arranged on the second fixed block (16); the third transmission shaft (15) is threadedly connected with a third sliding block (17), the bottom of the third sliding block (17) is slidably connected to the workbench (1), and the first motor (4) is fixed on the top of the third sliding block (17); the workbench (1) is also fixed with a first fixed block (18), a slider (19) is slidably provided on the first fixed block (18), and the other end of the first transmission shaft (5) is rotatably arranged in the slider (19); the other end of the limit rod (7) is fixed to the slider (19).

4. The particle cutting mechanism of the plastic particle granulator according to claim 1, characterized in that: The scraper (12) is divided into a connecting portion (1201) and a working portion (1202); the connecting portion (1201) is fixedly connected to the second sliding block (10); the opposite sides of the two working portions (1202) are inclined surfaces, and the two inclined surfaces are inclined in a direction in which the two working portions (1202) approach each other.

5. The particle cutting mechanism of the plastic particle granulator according to claim 1, characterized in that: The telescopic member is a gas rod (20), the telescopic end of the gas rod (20) slides through the horizontal plate of the mounting frame (2), and the cutter (3) is fixed to the end of the gas rod (20) that passes through the horizontal plate of the mounting frame (2).

6. The particle cutting mechanism of the plastic particle granulator according to claim 1, characterized in that: Vertical sliding grooves (21) are formed on the two vertical plates of the mounting frame (2). The cutter (3) comprises a mounting portion (301) and a main body (302). The mounting portion (301) is fixedly connected to the telescopic end of the gas rod (20), and the two ends of the mounting portion (301) are vertically slidable in the two sliding grooves (21).

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