Linear cutting mechanism of plastic granulator

Abstract

The utility model discloses a linear cutting mechanism of a plastic granulator, which relates to the technical field of plastic processing, and comprises a material conveying pipe, the upper end of the material conveying pipe is fixedly connected with a feed hopper, the rear end of the material conveying pipe is provided with a material conveying spiral device, and the front end of the material conveying pipe is fixedly connected with a plastic extrusion port. And a cutting knife is arranged on the outer side of the plastic extrusion opening, a cleaning assembly is arranged on the outer side of the cutting knife, the cleaning assembly comprises supporting rods fixedly connected to the two sides of the plastic extrusion opening, sliding grooves are fixedly formed in the front ends of the supporting rods, and first sliding blocks are slidably connected into the sliding grooves. When the plastic cutting device works, the cutting knife moves left and right to work, meanwhile, a second sliding block moves, a gear drives a lead screw to rotate, and a cleaning block continuously moves up and down on a blade of the cutting knife, so that plastic attached to the cutting knife can be cleaned, and the working effect of the cutting knife is guaranteed; and therefore, the pelletizing quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a linear cutting mechanism for a plastic granulator. Background Technology

[0002] In industrial production, it is often necessary to process plastics into granules, which requires the use of plastic granulators. The emergence of plastic granulators has facilitated industrial production.

[0003] During the granulation process, the extruded plastic needs to be cut into granules by a cutting blade at the port of the device. In existing devices, the cutting blade continuously cuts, and because the plastic is newly formed and still has some stickiness in some areas, it is easy to adhere to the outside of the cutting blade, which will affect the plastic granulation effect. Over time, the machine needs to be stopped for cleaning, which affects the processing efficiency and the practical effect is not ideal. Utility Model Content

[0004] This utility model discloses a linear cutting mechanism for a plastic granulator, aiming to solve the technical problem that when the cutting blade of the existing device is cutting continuously, the plastic is still sticky in some areas after it has just been formed, and it is easy to stick to the outside of the cutting blade, which will affect the plastic granulation effect and require the operator to stop the machine for cleaning after a long time.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A linear cutting mechanism for a plastic granulator includes a feeding pipe, a feeding hopper fixedly connected to the upper end of the feeding pipe, a feeding screw device at the rear end of the feeding pipe, a plastic extrusion port fixedly connected to the front end of the feeding pipe, a cutting blade provided on the outside of the plastic extrusion port, and a cleaning component provided on the outside of the cutting blade.

[0007] The cleaning assembly includes support rods fixedly connected to both sides of the plastic extrusion nozzle. A groove is fixedly formed at the front end of each support rod. A first slider is slidably connected inside the groove. The front end of the first slider is fixedly connected to a cutting blade. A moving mechanism is provided inside the first slider. Second sliders are slidably connected to both sides of the groove. A lead screw is rotatably connected to the opposite side of the second slider. The lower end of the lead screw passes through the lower second slider and is fixedly connected to a gear. Gear bars that mesh with the gear are fixedly connected to both sides of the lower end of the support rod. A cleaning block is threaded onto the wall of the lead screw. A first spring is fixedly connected to one side of the second slider. Push blocks are fixedly connected to both sides of the lower end of the cutting blade. A rectangular opening is provided on the outer side of the support rod.

[0008] Preferably, the cutting blade is rectangular and the blades are located on both sides;

[0009] Preferably, a connecting rod is fixedly connected to one side of the upper and lower second sliders, and the wall of the connecting rod is slidably connected to the inside of the cleaning block;

[0010] Preferably, the moving mechanism includes a motor fixedly connected to the left side of the upper support rod, and a threaded rod fixedly connected to the output end of the motor, the wall of the threaded rod being threadedly connected to the inside of the first slider;

[0011] Preferably, the two sides of the threaded rod wall are in contact with the interior of the second slider, and a circular hole with a diameter larger than that of the threaded rod is opened inside the second slider;

[0012] Preferably, a first cleaning plate is fixedly connected to one side of the cleaning block, a second cleaning plate is slidably connected inside the cleaning block, a second spring is fixedly connected to one side of the second cleaning plate, and one side of the first cleaning plate and the second cleaning plate are arc-shaped.

[0013] As can be seen from the above, the advantages of the linear cutting mechanism of the plastic granulator provided by this utility model are as follows: During operation, while the cutting blade moves left and right, the second slider moves, causing the gear to drive the lead screw to rotate, which in turn causes the cleaning block to move up and down on the cutting blade, thereby cleaning the plastic adhering to the cutting blade, ensuring the working effect of the cutting blade, and thus ensuring the quality of the granulation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the linear cutting mechanism of a plastic granulator proposed in this utility model.

[0016] Figure 2 This is a partial structural diagram of the linear cutting mechanism of a plastic granulator proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the second partial structure of the linear cutting mechanism of a plastic granulator proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the third part of the linear cutting mechanism of a plastic granulator proposed in this utility model.

[0019] Figure 5This is a cross-sectional view of the cleaning block of the linear cutting mechanism of a plastic granulator proposed in this utility model.

[0020] In the diagram: 1. Feed pipe; 2. Feed hopper; 3. Feed screw device; 4. Plastic extrusion nozzle; 5. Support rod; 6. Gear; 7. First slider; 8. Slide groove; 9. Cutting blade; 10. Lead screw; 11. Second slider; 12. Motor; 13. Gear rack; 14. Connecting rod; 15. First spring; 16. Cleaning block; 17. Threaded rod; 18. Second cleaning plate; 19. Second spring; 20. First cleaning plate; 21. Push block; 22. Rectangular opening. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Reference Figure 1-5 A linear cutting mechanism for a plastic granulator includes a feeding pipe 1, a feeding hopper 2 fixedly connected to the upper end of the feeding pipe 1, a feeding screw device 3 at the rear end of the feeding pipe 1, a plastic extrusion port 4 fixedly connected to the front end of the feeding pipe 1, a cutting blade 9 provided on the outside of the plastic extrusion port 4, and a cleaning component provided on the outside of the cutting blade 9.

[0024] The cleaning assembly includes support rods 5 fixedly connected to both sides of the plastic extrusion port 4. A groove 8 is fixedly provided at the front end of each support rod 5. A first slider 7 is slidably connected inside the groove 8, allowing it to move. The front end of the first slider 7 is fixedly connected to a cutting blade 9. When the first slider 7 moves, it drives the cutting blade 9 to move. A moving mechanism is provided inside the first slider 7, which drives it to move left and right. Second sliders 11 are slidably connected to both sides of the groove 8, allowing them to move. A lead screw 10 is rotatably connected to the opposite side of each second slider 11. When the second slider 11 moves, it drives the lead screw 10 to move. The lower end of the lead screw 10 passes through... The second slider 11 at the end is fixedly connected to a gear 6. The movement of the lead screw 10 drives the gear 6 to move. The lower end of the support rod 5 is fixedly connected to two sides of a toothed rod 13 that meshes with the gear 6. The movement of the gear 6 causes the lead screw 10 to rotate under the action of the toothed rod 13. The wall of the lead screw 10 is threadedly connected to a cleaning block 16. The rotation of the lead screw 10 causes the cleaning block 16 to move. A first spring 15 is fixedly connected to one side of the second slider 11. Push blocks 21 are fixedly connected to two sides of the lower end of the cutting blade 9. The push blocks 21 are used to push the second slider 11 to move. A rectangular opening 22 is provided on the outer side of the support rod 5 to allow the lead screw 10 to move. The cutting blade 9 is rectangular and the blade is located on both sides.

[0025] During operation, the molten plastic is pushed towards the plastic extrusion port 4 by the feeding screw device 3. At this time, the moving mechanism drives the cutting blade 9 to move left and right, thereby cutting the extruded plastic. When the cutting blade 9 moves, it drives the pushing block 21 to move. The pushing block 21 contacts the second slider 11, thereby causing the second slider 11 to move. It should be noted that when the pushing block 21 contacts the second slider 11, the cleaning block 16 is already in contact with the corresponding cutting blade 9. At this time, the cutting blade 9 continues to move with the pushing block 21, thereby causing the second slider 11 to move. At the same time, the first spring 15 is compressed. The movement of the second slider 11 drives the lead screw 10 to move, and the lead screw 10 drives the gear 6 to move. The gear 6, under the action of the rack 13, The rotation of gear 6 causes lead screw 10 to rotate, and the movement of lead screw 10 causes cleaning block 16 to move on the blade of cutting knife 9. When cutting knife 9 moves in the opposite direction, the second slider 11 is reset under the action of the first spring 15, and then lead screw 10 flips, and cleaning block 16 resets and moves on the blade of cutting knife 9. This left-right movement allows cleaning block 16 to move up and down on the blade of cutting knife 9. Thus, during operation, while cutting knife 9 moves left and right, the movement of second slider 11 causes gear 6 to drive lead screw 10 to rotate, allowing cleaning block 16 to continuously move up and down on the blade of cutting knife 9, thereby cleaning away the plastic adhering to cutting knife 9, ensuring the working effect of cutting knife 9, and thus ensuring the quality of granulation.

[0026] Reference Figure 1 and Figure 4 A connecting rod 14 is fixedly connected to the opposite side of the upper and lower second sliders 11. The rod wall of the connecting rod 14 is slidably connected to the inside of the cleaning block 16. The connecting rod 14 enables the two second sliders 11 to move stably and synchronously, while also providing a limiting effect on the cleaning block 16 to ensure the stable movement of the cleaning block 16.

[0027] Reference Figure 1 and Figure 3 The moving mechanism includes a motor 12 fixedly connected to the left side of the upper support rod 5. A threaded rod 17 is fixedly connected to the output end of the motor 12. The rod wall of the threaded rod 17 is threadedly connected to the inside of the first slider 7. The two sides of the rod wall of the threaded rod 17 are in contact with the inside of the second slider 11. A circular hole with a diameter larger than that of the threaded rod 17 is opened inside the second slider 11. The output end of the motor 12 drives the threaded rod 17 to rotate, causing the first slider 7 to move. The first slider 7 causes the cutting blade 9 to move.

[0028] Reference Figure 1 and Figure 3A first cleaning plate 20 is fixedly connected to one side of the cleaning block 16, and a second cleaning plate 18 is slidably connected inside the cleaning block 16. A second spring 19 is fixedly connected to one side of the second cleaning plate 18. One side of the first cleaning plate 20 and the second cleaning plate 18 are arc-shaped, and the arc shape has a certain guiding effect, so that the blade can better enter the interior of the first cleaning plate 20 and the second cleaning plate 18. Through the second spring 19, the effect is better when scraping plastic.

[0029] Working principle: During operation, the molten plastic is pushed towards the plastic extrusion port 4 by the feeding screw device 3. At this time, the moving mechanism drives the cutting blade 9 to move left and right, thereby cutting the extruded plastic. When the cutting blade 9 moves, it drives the pushing block 21 to move. The pushing block 21 contacts the second slider 11, thereby causing the second slider 11 to move. It should be noted that when the pushing block 21 contacts the second slider 11, the cleaning block 16 is already in contact with the corresponding cutting blade 9. At this time, the cutting blade 9 continues to move with the pushing block 21, thereby causing the second slider 11 to move. At the same time, the first spring 15 is compressed. The movement of the second slider 11 drives the lead screw 10 to move, and the lead screw 10 drives the gear 6 to move. The gear 6 is in the gear rack 13. Under the action of the gear 6, the gear 6 rotates, causing the lead screw 10 to rotate. The movement of the lead screw 10 causes the cleaning block 16 to move on the blade of the cutting knife 9. When the cutting knife 9 moves in the opposite direction, the second slider 11 is reset under the action of the first spring 15, and the lead screw 10 flips. The cleaning block 16 resets and moves on the blade of the cutting knife 9. This left-right movement allows the cleaning block 16 to move up and down on the blade of the cutting knife 9. Thus, during operation, while the cutting knife 9 moves left and right, the movement of the second slider 11 causes the gear 6 to drive the lead screw 10 to rotate, allowing the cleaning block 16 to continuously move up and down on the blade of the cutting knife 9, thereby cleaning off the plastic adhering to the cutting knife 9, ensuring the working effect of the cutting knife 9, and thus ensuring the quality of the granules.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0031] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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 linear cutting mechanism for a plastic granulator, comprising a feeding pipe (1), characterized in that, The upper end of the conveying pipe (1) is fixedly connected to the feed hopper (2), the rear end of the conveying pipe (1) is connected to the conveying screw device (3), the front end of the conveying pipe (1) is fixedly connected to the plastic extrusion port (4), the outer side of the plastic extrusion port (4) is provided with a cutting blade (9), and the outer side of the cutting blade (9) is provided with a cleaning component. The cleaning assembly includes support rods (5) fixedly connected to both sides of the plastic extrusion port (4). A groove (8) is fixedly provided at the front end of each support rod (5). A first slider (7) is slidably connected inside the groove (8). The front end of the first slider (7) is fixedly connected to a cutting blade (9). A moving mechanism is provided inside the first slider (7). Second sliders (11) are slidably connected to both sides of the groove (8). A lead screw (10) is rotatably connected to the opposite side of each second slider (11). The lower end of the lead screw (10) passes through the second slider (11) at the lower end and is fixedly connected to a gear (6). The lower end of the support rod (5) at the lower end is fixedly connected to two sides of a toothed rod (13) that meshes with the gear (6). The rod wall of the lead screw (10) is threadedly connected to a cleaning block (16). The second slider (11) is fixedly connected to one side of a first spring (15). The lower end of the cutting blade (9) is fixedly connected to two sides of a push block (21). The support rod (5) has a rectangular opening (22) on its outer side.

2. The linear cutting mechanism of a plastic granulator according to claim 1, characterized in that, The cutting blade (9) is rectangular, and the blades are located on both sides.

3. The linear cutting mechanism of a plastic granulator according to claim 1, characterized in that, A connecting rod (14) is fixedly connected to one side of the upper and lower second sliders (11), and the rod wall of the connecting rod (14) is slidably connected to the inside of the cleaning block (16).

4. The linear cutting mechanism of a plastic granulator according to claim 1, characterized in that, The moving mechanism includes a motor (12) fixedly connected to the left side of the upper support rod (5). The output end of the motor (12) is fixedly connected to a threaded rod (17), and the wall of the threaded rod (17) is threadedly connected to the inside of the first slider (7).

5. The linear cutting mechanism of a plastic granulator according to claim 4, characterized in that, The two sides of the threaded rod (17) are in contact with the interior of the second slider (11), and the interior of the second slider (11) has a circular hole with a diameter larger than that of the threaded rod (17).

6. The linear cutting mechanism of a plastic granulator according to claim 1, characterized in that, A first cleaning plate (20) is fixedly connected to one side of the cleaning block (16), and a second cleaning plate (18) is slidably connected inside the cleaning block (16). A second spring (19) is fixedly connected to one side of the second cleaning plate (18), and one side of the first cleaning plate (20) and the second cleaning plate (18) are arc-shaped.

Images