A continuous cutting plastic master batch pelletizer
By introducing an openable roller conveyor mechanism into the pelletizer, the problem of insufficient plastic strip transmission was solved, enabling efficient and continuous cutting of plastic masterbatch and improving the practicality of the pelletizer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GMP NEW MATERIALS CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
AI Technical Summary
Existing pelletizers lack a transmission mechanism for plastic strips, resulting in low continuous cutting efficiency and insufficient practicality.
An openable roller conveyor mechanism was designed to enable automatic feeding of plastic strips. A rotary drive motor drives the drive shaft and driven shaft to ensure continuous movement and cutting of the plastic strips within the pelletizer.
It improves pelletizing efficiency, increases the practicality of the pelletizer, and enables automatic feeding and continuous cutting of plastic strips.
Smart Images

Figure CN224391607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pelletizers, specifically a continuous cutting plastic masterbatch pelletizer. Background Technology
[0002] A pelletizer is a specialized piece of machinery used to cut plastics, sponges, or other materials into pellets. It is widely used in fields such as waste plastic recycling and polymer material processing.
[0003] An existing pelletizer, such as the one with patent publication number CN221985518U, effectively removes plastic residue adsorbed on the pelletizing blade by scraping the side of the pelletizing blade with a scraper. This prevents the pelletizing blade from carrying the adsorbed plastic residue into the cut plastic pellets during repeated cutting, thus affecting product quality. At the same time, it is equipped with two counter-moving electric sliders and connecting rods, which facilitates the adjustment of the distance between the two scrapers according to the specifications of the pelletizing blade, and also facilitates the disassembly and replacement of the scrapers.
[0004] However, this device lacks the conduction of plastic strips, resulting in low continuous cutting efficiency and insufficient practicality. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a continuous cutting plastic masterbatch pelletizer with an openable roller conveyor mechanism that enables automatic feeding of plastic strips, improves pelletizing efficiency, and increases practicality.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a continuous cutting plastic masterbatch pelletizer, comprising a pelletizer and a feed inlet. The pelletizer has a feed inlet on its input side and also includes a bottom frame, a rotary drive motor, a drive shaft, a conveyor roller, a hinge, an upper frame, a shaft frame, a driven shaft, a pressure roller, and a connecting frame. The outer side of the feed inlet at the front end of the pelletizer is connected to the rear side of the bottom frame via the connecting frame. The middle left side of the bottom frame is connected to the inner side of the rotary drive motor. The output end of the rotary drive motor is connected to the same side of the drive shaft. The drive shaft is rotatably disposed inside the bottom frame. The outer wall of the drive shaft is connected to the inner wall of the conveyor roller. The top left side of the bottom frame is movably connected to the bottom left side of the upper frame via a hinge. A fixing mechanism is provided between the upper frame and the bottom frame. The inner side of the upper frame is connected to the shaft frame via a connecting mechanism. The driven shaft is rotatably disposed inside the shaft frame. The outer wall of the driven shaft is connected to the inner wall of the pressure roller.
[0009] Preferably, the fixing mechanism includes a screw groove frame, a through plate, and a bolt. The upper right side of the bottom frame is connected to the inner side of the screw groove frame, and the lower right side of the upper frame is connected to the inner end of the through plate. A bolt is movably installed inside the through plate.
[0010] Preferably, the connecting mechanism includes a sliding sleeve, a sliding rod, a connecting piece, and a spring. The inner side of the top of the upper frame is connected to the outer side of the sliding sleeve. The inner wall of the sliding sleeve is vertically slidably connected to the outer wall of the sliding rod. The bottom side of the sliding rod is connected to the middle of the top side of the shaft frame. The top side of the sliding rod is connected to the middle of the bottom side of the connecting piece. A spring is connected to the outer side of the bottom side of the connecting piece and the outer side of the sliding sleeve on the top side of the upper frame.
[0011] Preferably, it also includes a grip, wherein the top right side of the upper frame is connected to the inner side of the grip.
[0012] Preferably, it also includes a cushioning pad, with the top right side of the bottom frame connected to the bottom side of the cushioning pad.
[0013] Preferably, it also includes an inclined support beam, with the bottom side of the bottom frame connected to the top side of the inclined support beam, and the lower front side of the pelletizer connected to the rear side of the inclined support beam.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a continuous cutting plastic masterbatch pelletizer, which has the following beneficial effects:
[0016] When the upper frame is open, the plastic strip to be granulated can be placed on top of the conveyor roller. Then, the upper frame is closed under the constraint of the hinge and fixed by the fixing mechanism. The connecting mechanism acts downward on the shaft frame, causing the pressure roller to press against the upper side of the plastic strip. Then, the drive motor rotates, driving the drive shaft to rotate within the bottom frame. The upper pressure roller is constrained by the driven shaft within the shaft frame, acting on the plastic strip to move it and extend it into the connecting frame, where the pelletizer runs to granulate it. The roller conveyor mechanism can be opened to realize automatic feeding of the plastic strip, improve pelletizing efficiency, and increase practicality. Attached Figure Description
[0017] Figure 1 This is an axial view of the structural schematic diagram of this utility model;
[0018] Figure 2 This utility model Figure 1 The left view;
[0019] Figure 3 This utility model Figure 1 Front view;
[0020] Figure 4 This utility model Figure 1 The top view.
[0021] The following are labels in the attached diagram: 1. Pelletizer; 2. Feed inlet; 3. Base frame; 4. Rotary drive motor; 5. Drive shaft; 6. Conveyor roller; 7. Hinge; 8. Top frame; 9. Shaft frame; 10. Driven shaft; 11. Pressure roller; 12. Screw groove frame; 13. Pellet threader; 14. Bolt; 15. Sliding sleeve; 16. Sliding rod; 17. Connecting plate; 18. Spring; 19. Handle; 20. Buffer pad; 21. Inclined support beam; 22. Connecting frame. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example
[0024] Please see Figure 1-4 A continuous cutting plastic masterbatch pelletizer includes a pelletizer 1 and a feed inlet 2. The feed inlet 2 is provided on the input side of the pelletizer 1. It also includes a base frame 3, a rotary drive motor 4, a drive shaft 5, a conveyor roller 6, a hinge 7, an upper frame 8, a shaft frame 9, a driven shaft 10, a pressure roller 11, and a connecting frame 22. The outer side of the feed inlet 2 at the front end of the pelletizer 1 is connected to the rear side of the base frame 3 via the connecting frame 22. The middle left side of the base frame 3 is connected to the inner side of the rotary drive motor 4. The output end of the rotary drive motor 4 is connected to the same side of the drive shaft 5. The drive shaft 5 is rotatably disposed inside the base frame 3. The outer wall of the drive shaft 5 is connected to the inner wall of the conveyor roller 6. The top left side of the base frame 3 is movably connected to the bottom left side of the upper frame 8 via the hinge 7. A fixing mechanism is provided between the upper frame 8 and the bottom frame 3. The inner side of the upper frame 8 is connected to the shaft frame 9 via a connecting mechanism. The driven shaft 10 is rotatably provided on the inner side of the shaft frame 9. The outer wall of the driven shaft 10 is connected to the inner wall of the pressure roller 11. When the upper frame 8 is in the open state, the plastic strip to be granulated can be placed on the top of the conveying roller 6. Then the upper frame 8 is closed under the constraint of the hinge 7 and fixed by the fixing mechanism. The connecting mechanism acts on the shaft frame 9 downward, so that the pressure roller 11 presses the upper side of the plastic strip. Then the drive motor 4 is rotated, which drives the drive shaft 5 to rotate in the bottom frame 3. And through the upper pressure roller 11, the driven shaft 10 is constrained to rotate in the shaft frame 9, which acts on the plastic strip to move it, so that it extends into the connecting frame 22 and is granulated by the pelletizer 1.
[0025] The fixing mechanism includes a screw groove bracket 12, a through piece 13, and a bolt 14. The upper right side of the bottom frame 3 is connected to the inner side of the screw groove bracket 12, and the lower right side of the upper frame 8 is connected to the inner end of the through piece 13. The bolt 14 is movably installed inside the through piece 13. When the upper frame 8 is closed, the through piece 13 and the screw groove bracket 12 can be aligned. Then, the bolt 14 can be screwed through the through piece 13 into the screw groove bracket 12 to close and fix the upper frame 8.
[0026] The connecting mechanism includes a sliding sleeve 15, a sliding rod 16, a connecting piece 17, and a spring 18. The inner side of the top of the upper frame 8 is connected to the outer side of the sliding sleeve 15. The inner wall of the sliding sleeve 15 is vertically slidably connected to the outer wall of the sliding rod 16. The bottom side of the sliding rod 16 is connected to the middle of the top side of the shaft frame 9. The top side of the sliding rod 16 is connected to the middle of the bottom side of the connecting piece 17. The outer side of the bottom side of the connecting piece 17 is connected to the outer side of the sliding sleeve 15 on the top side of the upper frame 8 by a spring 18. Under the elastic contraction of the spring 18, the connecting piece 17 can be connected, so that the sliding rod 16 slides down under the constraint of the sliding sleeve 15, and then the shaft frame 9 is connected downward to press the pressure roller 11.
[0027] It also includes a handle 19, with the top right side of the upper frame 8 connected to the inside of the handle 19; by holding the handle 19, the upper frame 8 can be opened and closed, improving convenience.
[0028] It also includes a buffer pad 20, with the top right side of the bottom frame 3 connected to the bottom side of the buffer pad 20; the buffer pad 20 can provide contact cushioning when the upper frame 8 is closed, avoiding damage and improving reliability.
[0029] It also includes a sloping support beam 21, with the bottom middle of the bottom frame 3 connected to the top side of the sloping support beam 21, and the front lower middle side of the pelletizer 1 connected to the rear side of the sloping support beam 21; the sloping support beam 21 can provide auxiliary support to the bottom frame 3 and improve stability.
[0030] In summary, when using a continuous cutting plastic masterbatch pelletizer, with the upper frame 8 in the open state, the plastic strip to be pelletized can be placed on top of the conveyor roller 6. Then, by holding the handle 19, the upper frame 8 is closed under the constraint of the hinge 7. The buffer pad 20 can buffer the contact during the closing of the upper frame 8 to avoid damage. After the upper frame 8 is closed, the through plate 13 and the screw groove frame 12 can be aligned. Then, the bolt 14 can be passed through the through plate 13 and screwed into the screw groove frame 12 to close and fix the upper frame 8. Under the elastic contraction, the connecting piece 17 can be connected, allowing the slide bar 16 to slide down under the constraint of the sliding sleeve 15. This then connects the shaft frame 9 downwards, causing the pressure roller 11 to press the plastic strip. The drive motor 4 then rotates, driving the drive shaft 5 to rotate within the bottom frame 3. The drive shaft 10, via the upper pressure roller 11, also constrains the rotation within the shaft frame 9, causing the plastic strip to move and extend into the connecting frame 22. The pelletizer 1 then pelletizes the strip. Additionally, the inclined support beam 21 provides auxiliary support to the bottom frame 3, improving stability.
[0031] The pelletizer 1 and the rotary drive motor 4 are commercially available devices known to those skilled in the art. We are simply using them here without making any structural or functional improvements, and we will not elaborate further here.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A continuous cutting plastic masterbatch pelletizer, comprising a pelletizer (1) and a feed inlet (2), wherein the feed inlet (2) is provided on the input side of the pelletizer (1), characterized in that, It also includes a base frame (3), a rotary drive motor (4), a drive shaft (5), a conveyor roller (6), a hinge (7), an upper frame (8), a shaft frame (9), a driven shaft (10), a pressure roller (11), and a connecting frame (22). The outer side of the feed inlet (2) at the front end of the pelletizer (1) is connected to the rear side of the base frame (3) via the connecting frame (22). The middle left side of the base frame (3) is connected to the inner side of the rotary drive motor (4). The output end of the rotary drive motor (4) is connected to the drive shaft (5). The sides are connected, the drive shaft (5) is rotatably set inside the bottom frame (3), the outer wall of the drive shaft (5) is connected to the inner wall of the conveying roller (6), the top left of the bottom frame (3) is movably connected to the bottom left of the upper frame (8) via a hinge (7), a fixing mechanism is provided between the upper frame (8) and the bottom frame (3), the inner side of the upper frame (8) is connected to the shaft frame (9) via a connecting mechanism, the inner side of the shaft frame (9) is rotatably set with a driven shaft (10), and the outer wall of the driven shaft (10) is connected to the inner wall of the pressure roller (11).
2. The continuous cutting plastic masterbatch pelletizer according to claim 1, characterized in that: The fixing mechanism includes a screw groove frame (12), a through piece (13) and a bolt (14). The upper right side of the bottom frame (3) is connected to the inner side of the screw groove frame (12), and the lower right side of the upper frame (8) is connected to the inner end of the through piece (13). The bolt (14) is movably installed inside the through piece (13).
3. The continuous cutting plastic masterbatch pelletizer according to claim 1, characterized in that: The connecting mechanism includes a sliding sleeve (15), a sliding rod (16), a connecting piece (17), and a spring (18). The inner side of the top of the upper frame (8) is connected to the outer side of the sliding sleeve (15). The inner wall of the sliding sleeve (15) is vertically slidably connected to the outer wall of the sliding rod (16). The bottom side of the sliding rod (16) is connected to the middle of the top side of the shaft frame (9). The top side of the sliding rod (16) is connected to the middle of the bottom side of the connecting piece (17). The outer side of the bottom side of the connecting piece (17) is connected to the outer side of the sliding sleeve (15) on the top side of the upper frame (8) by a spring (18).
4. The continuous cutting plastic masterbatch pelletizer according to claim 1, characterized in that: It also includes a grip (19), the top right side of the upper frame (8) being connected to the inside of the grip (19).
5. A continuous cutting plastic masterbatch pelletizer according to claim 1, characterized in that: It also includes a cushioning pad (20), the top right side of the bottom frame (3) is connected to the bottom side of the cushioning pad (20).
6. The continuous cutting plastic masterbatch pelletizer according to claim 1, characterized in that: It also includes a sloping support beam (21), the bottom side of the bottom frame (3) is connected to the top side of the sloping support beam (21), and the front and lower sides of the pelletizer (1) are connected to the rear side of the sloping support beam (21).