Plastic granulator capable of conveniently adjusting granulation size
By introducing an adjustment mechanism into the plastic pelletizer, the problem of inconvenient pellet size adjustment is solved, enabling flexible installation of the cutting blade and stable cutting, thus improving the cutting and collecting effect of the pelletizer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TAIYU MATERIAL TECH CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-21
AI Technical Summary
Existing plastic pelletizers are not ideal in adjusting pellet size, making it difficult to meet diverse production needs.
By setting an adjustment mechanism on the rotating roller, including a cutting blade, a magnetic block, an electromagnet, a locking block, and a servo motor, the cutting blade can be adjusted and fixed. Combined with a guide plate and a collecting plate, this improves cutting stability and pellet collection efficiency.
It enables flexible cutting of material strips, and the cutting blade spacing can be adjusted according to needs, improving the cutting effect and collection efficiency of the pelletizer.
Smart Images

Figure CN224145075U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic pelletizer technology, and in particular to a plastic pelletizer that facilitates adjustment of pellet size. Background Technology
[0002] A plastic pelletizer is a type of pelletizer mainly used for processing waste plastic films (industrial packaging film, agricultural mulch film, greenhouse film, beer bags, tote bags, etc.), woven bags, agricultural convenience bags, basins, buckets, beverage bottles, furniture, daily necessities, etc. It is suitable for most common waste plastics and is the most widely used, most popular, and most widely accepted plastic recycling processing machinery in the waste plastic recycling industry.
[0003] A search of the Chinese patent "A Plastic Particle Pelletizer" (publication number CN219486244U) reveals that this patent uses a drive assembly to rotate a threaded rod. Since the threaded rod is threadedly connected to a slider, and the slider slides against the inner wall of the machine, the slider causes the driven roller to move up and down, thus adjusting the distance between the driven roller and the driving roller. This facilitates pelletizing of different sizes of material strips to meet diverse production needs. The second motor drives a driving gear to mesh with another driving gear, which in turn drives the threaded rod to be threadedly connected to the slider. The slider then causes the driven roller to move up and down, adjusting the distance between the driven roller and the driving roller. However, this device limits the material strip by adjusting the distance between the driven roller and the driving roller, resulting in an unsatisfactory cutting effect of the roller cutter. This makes it inconvenient to cut material strips to different sizes, reducing the pelletizing efficiency of the plastic pelletizer.
[0004] Therefore, a plastic pelletizer with easily adjustable pellet size is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a plastic pelletizer that facilitates adjustment of pellet size in order to solve the above-mentioned problems, thereby improving the inconvenience of cutting material strips into different sizes.
[0006] This utility model achieves the above-mentioned objective through the following technical solution: a plastic pelletizer with adjustable pellet size, comprising a pelletizer body, a conveying rod rotatably connected to one end of the top of the pelletizer body, a feeding plate fixedly connected to one end of the conveying rod, and an adjustment mechanism provided on the top of the inner wall of the pelletizer body; wherein, the adjustment mechanism includes a rotating roller rotatably connected to the top of the pelletizer body, the outer wall of the rotating roller having several evenly arranged mounting grooves, a cutting blade being engaged with the outer wall of the rotating roller through the mounting grooves, a magnetic block being fixedly connected to the bottom end of the cutting blade, an electromagnet being installed on the inner wall of the mounting groove and attracting the magnetic block, the cutting blade being mounted on the rotating roller through the mounting grooves, the distance between the cutting blades being adjusted by the cooperation of the multiple mounting grooves on the rotating roller, thereby adjusting the cutting size of the material strip, and the cutting blade being fixed by the cooperation of the magnetic block and the electromagnet.
[0007] Preferably, the adjustment mechanism further includes locking blocks disposed on both sides of the cutting blade. The locking blocks are slidably connected to the inner wall of the rotating roller. One side of the locking block is embedded in the inner wall of the cutting blade. Several uniformly arranged compression springs are disposed between the other side of the locking block and the inner wall of the rotating roller. After the position of the cutting blade on the rotating roller is adjusted, the cutting blade is embedded in the cutting blade by the locking blocks on both sides cooperating with the locking blocks, which can fix the cutting blade and improve the cutting stability of the cutting blade on the material strip.
[0008] Preferably, a connecting plate is fixedly connected to the bottom end of the card block, and the connecting plate is slidably connected to the inner wall of the rotating roller.
[0009] Preferably, one end of the inner wall of the rotating roller is slidably connected to several evenly distributed extrusion blocks. The extrusion blocks are disposed between the two connecting plates. When the cutting blade is disassembled and its installation position is changed, one end of the extrusion block gradually increases in size. As the extrusion block moves, it can squeeze the two connecting plates to both sides. The connecting plates drive the locking block to move towards the inner wall of the rotating roller to release the restriction on the cutting blade, which facilitates the adjustment of the distance between multiple cutting blades and the adjustment of the cutting size of the material strip.
[0010] Preferably, the bottom end of the connecting plate is fixedly connected to several evenly distributed sliders. The sliders are slidably connected to the inner wall of the rotating roller. When the connecting plate moves the locking block to one side, it moves the sliders accordingly. The T-shaped sliders can position and guide the connecting plate, allowing both sides of the connecting plate to move synchronously and preventing the connecting plate from shifting during movement.
[0011] Preferably, one end of the rotating roller has a groove, one end of the extrusion block passes through the rotating roller and extends into the groove, and a servo motor is fixedly connected to one end of the rotating roller. The groove at one end of the rotating roller facilitates the extrusion block to be extruded, thereby improving the efficiency of the device in installing and disassembling the cutting blade. The servo motor can drive the rotating roller to rotate.
[0012] Preferably, a guide plate is fixedly connected to the middle of the inner wall of the pelletizer body, and a collecting plate is slidably connected to the bottom of the inner wall of the pelletizer body. The cut strips fall into the collecting plate through the guide plate, which facilitates the collection of the cut strips.
[0013] The beneficial effects of this utility model are:
[0014] By setting an adjustment mechanism, the cutting blades are installed in multiple mounting slots on the rotating roller, allowing the distance between multiple cutting blades to be adjusted. This enables the cutting blades to cut material strips to different sizes. The cutting blades are fixed in place by a magnetic block at the bottom that engages with an electromagnet inside the rotating roller. Pressing the extrusion block compresses the two connecting plates, allowing the connecting plates to control the release of the clamps on both sides of the cutting blades, facilitating disassembly and repositioning. A slider guides the movement of the connecting plates, and a groove on one side of the rotating roller allows for control of the position of the extrusion block, enabling the cutting blades to be installed in different positions and cut material strips to different sizes.
[0015] By setting up a guide plate and a collecting plate, when the rotating roller drives the cutting blade to cut the material strip on the feeding plate, the cutting blade cuts the material strip into appropriate sizes. The granulated material strip falls down onto the guide plate and is conveyed to the collecting plate through the inclined surface on one side of the guide plate. The collecting plate can collect the cut granules, improving the efficiency of the plastic pelletizer. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the external structure of the present utility model;
[0017] Figure 2 This is a schematic diagram of the adjustment mechanism structure of this utility model;
[0018] Figure 3 for Figure 2 Enlarged view of A in the middle;
[0019] Figure 4 This is a partial structural diagram of the adjustment mechanism of this utility model.
[0020] In the diagram: 1. Pelletizer body; 2. Conveying rod; 3. Feeding plate; 4. Adjusting mechanism; 401. Rotating roller; 402. Mounting groove; 403. Cutting blade; 404. Magnetic block; 405. Electromagnet; 406. Clamping block; 407. Compression spring; 408. Connecting plate; 409. Extrusion block; 410. Slider; 411. Groove; 412. Servo motor; 413. Guide plate; 414. Collecting plate. Detailed Implementation
[0021] 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.
[0022] In practical implementation: such as Figure 1-4 As shown, a plastic pelletizer with adjustable pellet size is provided. The pelletizer body 1 has a conveying rod 2 rotatably connected to one end of the top of the pelletizer body 1. A feeding plate 3 is fixedly connected to one end of the conveying rod 2. An adjustment mechanism 4 is provided on the top of the inner wall of the pelletizer body 1. The adjustment mechanism 4 includes a rotating roller 401 rotatably connected to the top of the pelletizer body 1. The outer wall of the rotating roller 401 has several evenly arranged mounting grooves 402. A cutting blade 403 is engaged with the outer wall of the rotating roller 401 through the mounting grooves 402. A magnetic block 404 is fixedly connected to the bottom end of the cutting blade 403. An electromagnet 405 that attracts the magnetic block 404 is installed on the inner wall of the mounting groove 402.
[0023] like Figure 2 and Figure 3As shown, the adjusting mechanism 4 also includes locking blocks 406 disposed on both sides of the cutting blade 403. The locking blocks 406 are slidably connected to the inner wall of the rotating roller 401. One side of the locking blocks 406 is embedded in the inner wall of one side of the cutting blade 403. Several uniformly arranged compression springs 407 are disposed between the other side of the locking blocks 406 and the inner wall of the rotating roller 401. A connecting plate 408 is fixedly connected to the bottom end of the locking blocks 406. The connecting plate 408 is slidably connected to the inner wall of the rotating roller 401. Several uniformly distributed pressing blocks 409 are slidably connected to one end of the inner wall of the rotating roller 401. The pressing blocks 409 are disposed between two connecting plates 408. Several uniformly distributed sliders 410 are fixedly connected to the bottom end of the connecting plate 408. The sliders 410 are slidably connected to the inner wall of the rotating roller 401. A groove 411 is opened at one end of the rotating roller 401. One end of the pressing block 409 passes through the rotating roller 401 and extends into the groove 411. Inside the 11, a servo motor 412 is fixedly connected to one end of the rotating roller 401. The cutting blade 403 can be installed and removed by cooperating with the electromagnet 405 through the magnetic block 404 at the bottom, which facilitates the replacement of the installation position of the cutting blade 403. By pressing the extrusion block 409 to move it to one end, the two connecting plates 408 can be extruded. The connecting plate 408 drives the locking block 406 to move to one side through the slider 410 to release the restriction on the cutting blade 403, which is convenient for disassembly. During installation, the extrusion block 409 is pulled in the opposite direction, and the locking block 406 is supported by the compression spring 407. The locking block 406 drives the connecting plate 408 to move to the other side and return to its original position. The locking block 406 is embedded in the cutting blade 403 and fixed to it. By adjusting the spacing of multiple cutting blades 403, different sizes of material strips can be cut, improving the use effect of the device.
[0024] like Figure 4 As shown, a guide plate 413 is fixedly connected to the middle of the inner wall of the pelletizer body 1, and a collection plate 414 is slidably connected to the bottom of the inner wall of the pelletizer body 1. The pelletizer body 1 is driven by the rotating roller 401 to rotate the adjusted cutting blade 403 to cut the material strip. The cut material strip falls onto the guide plate 413, and the guide plate 413 then conveys the material strip into the collection plate 414. Material strips of different sizes can be collected, improving the efficiency of the device.
[0025] In use, the electromagnet 405 is de-energized by manually operating the PLC control panel on the pelletizer body 1, causing the electromagnet 405 to release its attraction to the magnetic block 404. The pressing block 409 is then manually pressed to move it to one end. As the pressing block 409 moves, it presses against the two connecting plates 408. The connecting plates 408 move to one side along the inner wall of the rotating roller 401 via the slider 410, causing the locking block 406 to move from inside the cutting blade 403 into the rotating roller 401, releasing the restriction on the cutting blade 403 and allowing it to move off the rotating roller 401. Remove the cutting blade 403 from the mounting slot 402 and install it in a suitable position as needed. Adjust the distance between multiple cutting blades 403, and then install the cutting blade 403 on the rotating roller 401. The electromagnet 405 is energized to attract and fix the magnetic block 404. Two clamping blocks 406 hold and fix the cutting blade 403. The servo motor 412 is driven by the PLC operation panel to drive the cutting blade 403 on the rotating roller 401 to rotate and cut the material strip on the feeding plate 3. The cut material strip falls into the collecting plate 414 through the guide plate 413.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A plastic pelletizer that facilitates adjustment of pellet size, characterized by, include: The pelletizer body (1) has a conveying rod (2) rotatably connected to one end of the top of the pelletizer body (1), and a feeding plate (3) is fixedly connected to one end of the conveying rod (2). An adjustment mechanism (4) is provided on the top of the inner wall of the pelletizer body (1). The adjustment mechanism (4) includes a rotating roller (401) rotatably connected to the top of the pelletizer body (1). The outer wall of the rotating roller (401) is provided with several uniformly arranged mounting grooves (402). A cutting blade (403) is clamped to the outer wall of the rotating roller (401) through the mounting grooves (402). A magnetic block (404) is fixedly connected to the bottom end of the cutting blade (403). An electromagnet (405) that attracts the magnetic block (404) is installed on the inner wall of the mounting groove (402).
2. A plastic pelletizer for facilitating adjustment of pellet size as claimed in claim 1 wherein: The adjustment mechanism (4) further includes a locking block (406) disposed on both sides of the cutting blade (403). The locking block (406) is slidably connected to the inner wall of the shaft rotating roller (401). One side of the locking block (406) is embedded in the inner wall of one side of the cutting blade (403). Several uniformly arranged compression springs (407) are disposed between the other side of the locking block (406) and the inner wall of the rotating roller (401).
3. A plastic pelletizer for facilitating adjustment of pellet size as claimed in claim 2 wherein: The bottom end of the card block (406) is fixedly connected to a connecting plate (408), and the connecting plate (408) is slidably connected to the inner wall of the rotating roller (401).
4. The plastic pellet mill of claim 3, wherein: Several evenly distributed extrusion blocks (409) are slidably connected to one end of the inner wall of the rotating roller (401), and the extrusion blocks (409) are disposed between the two connecting plates (408).
5. The plastic pellet mill of claim 3, wherein: The bottom end of the connecting plate (408) is fixedly connected to several evenly distributed sliders (410), which are slidably connected to the inner wall of the rotating roller (401).
6. A plastic pellet mill for facilitating adjustment of pellet size as claimed in claim 4 wherein: One end of the rotating roller (401) is provided with a groove (411), one end of the extrusion block (409) passes through the rotating roller (401) and extends into the groove (411), and one end of the rotating roller (401) is fixedly connected to a servo motor (412).
7. The plastic pellet mill of claim 1, wherein: A guide plate (413) is fixedly connected to the middle of the inner wall of the pelletizer body (1), and a collecting plate (414) is slidably connected to the bottom of the inner wall of the pelletizer body (1).
Citation Information
Patent Citations
Granulator for plastic particles
CN219486244U