Dimension-adjustable granulator for plastic particle production

By introducing sorting and assembly components into the plastic pelletizer, automatic screening of defective pellets and quick replacement of collection frames are achieved, solving the problem of secondary cutting and sorting of defective pellets in the existing technology, and improving production efficiency and output.

CN223961519UActive Publication Date: 2026-03-03JIANGSU LIHAN TECH CO LTD
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Patent Information

Application Number
CN202520582581.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-03
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

When existing plastic pelletizers are pelletizing, unqualified large pellets need to be returned to the pelletizing process for secondary cutting. Unqualified pellets need to be sorted manually or with additional equipment, which increases labor or equipment costs, leading to a longer production process and a decrease in output.

Method used

A plastic pellet production equipment including a pelletizer, sorting components, and installation components was designed. Automatic sorting is achieved through a filter plate and a discharge port. Particles that meet the size requirements flow out through a second discharge port, while particles that do not meet the size requirements enter a collection frame through a first discharge port. The integrated electric push rod and collection frame enable quick replacement and reduce manual intervention.

Benefits of technology

It enables automatic screening of defective particles during pelleting, reducing additional sorting steps and equipment downtime, and improving production efficiency and output.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a size-adjustable granulator for producing plastic particles. The size-adjustable granulator comprises a granulator body, the sorting assembly comprises a filtering plate, filtering holes, a first discharging hole, a discharging plate and a second discharging hole, the filtering plate is fixed in the granulator, the filtering holes are formed in the surface of the filtering plate, the first discharging hole is formed in one side of the granulator, the discharging plate is fixed to the lower side of the interior of the granulator, the discharging plate is connected with one end of the filtering plate, and the second discharging hole is formed in the other end of the filtering plate. The second discharging hole is formed in the lower end of the other side of the granulator, a supporting block is fixed to the lower end of one side of the granulator, an electric push rod is fixed into the supporting block, a mounting plate is fixed to the output end of the electric push rod, and a limiting block is fixed to one side of the mounting plate. The grain cutting machine has the advantages that in the normal working process of the grain cutting machine, the work of collecting unqualified grains can be completed at the same time, extra time and procedures are not needed to process the grains, and the overall production efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of plastic cutting technology, and in particular to a pelletizer for producing plastic pellets with adjustable size. Background Technology

[0002] Plastic pelletizers are mainly used in the recycling of waste plastic products during the plastics manufacturing process. Small plastic pelletizers are mainly designed for strip-shaped plastic products, and they are pelletized primarily through a combination of fixed blades and rotating blades.

[0003] A search revealed Chinese Patent Publication No. CN206011499U, which discloses a plastic pelletizer. The pelletizer includes a worktable and a chassis fixed to the worktable. A fixed blade is fixed inside the chassis. A movable blade shaft is rotatably connected to the chassis on the side of the fixed blade furthest from the feed inlet. The movable blade shaft is driven by an AC motor. A feed roller and a pressure roller are also rotatably connected inside the chassis. The feed roller is driven by an AC motor and is located on the side of the fixed blade closest to the feed inlet. The pressure roller is located directly above the feed roller and always tends to be in contact with it. The speeds of both AC motors are controlled by frequency converters. This plastic pelletizer reduces transmission noise and vibration, and the transmission ratio adjustment is more convenient.

[0004] In the aforementioned utility model, during pelleting, unqualified large plastic particles need to be returned to the pelleting process for secondary cutting. Unqualified particles need to be sorted again. The sorting process requires manual labor or additional equipment, which increases labor costs or equipment investment costs, prolongs the entire production process, reduces output per unit time, and affects the overall production progress. Therefore, it is necessary to provide a method that can screen out unqualified plastic particles during discharge to improve the efficiency of plastic pelleting. Utility Model Content

[0005] The purpose of this utility model is to provide a pelletizer for producing plastic pellets with adjustable size, in order to solve the problem mentioned in the background art. In the above-mentioned utility model, during pelletizing, unqualified large plastic pellets need to be returned to the pelletizing process for secondary cutting, and unqualified pellets need to be sorted again. The sorting process requires manual labor or additional equipment, which increases labor costs or equipment investment costs, prolongs the entire production process, reduces the output per unit time, and affects the overall production progress.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a pelletizer for producing plastic pellets with adjustable size, comprising:

[0008] pelletizer;

[0009] The sorting assembly includes a filter plate, filter holes, a first discharge hole, a feeding plate, and a second discharge hole. The filter plate is fixed inside the pelletizer, the filter holes are opened on the surface of the filter plate, the first discharge hole is opened on one side of the pelletizer, the feeding plate is fixed inside the lower side of the pelletizer and is connected to one end of the filter plate, and the second discharge hole is opened on the other lower side of the pelletizer.

[0010] Furthermore, a pelletizing frame is fixedly installed on the upper surface of the pelletizer, and a motor is installed inside the pelletizer.

[0011] Furthermore, a support block is fixed to the lower end of one side of the pelletizer, an electric push rod is fixed inside the support block, and a mounting plate is fixed to the output end of the electric push rod.

[0012] Furthermore, a limiting block is fixed on one side of the mounting plate, and two limiting grooves are opened on one side of the pelletizer. The limiting block slides through the limiting grooves, and a collection frame is placed on the top surface of the mounting plate.

[0013] Furthermore, it also includes an installation component, which includes a connecting block, a fixing hole, and a limiting plate. The connecting block is fixed to the lower ends of both sides of the collection frame, the fixing hole is opened in the middle of one side of the connecting block, and the two limiting plates are fixed to the middle of both sides of the installation plate.

[0014] Furthermore, the limiting plate has a circular hole at its center, and a movable rod slides through the circular hole, with a baffle fixed on one side of the movable rod.

[0015] Furthermore, a spring is fixed to one side of the baffle, and the end of the movable rod extends into the fixing hole.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] I. This utility model, through the setting of a pelletizer, pelletizing frame, and sorting components, firstly, the operator starts the electric push rod through the external controller. The electric push rod drives the mounting plate to move upward, and the mounting plate drives the collecting frame to move upward until the collecting frame aligns with the first discharge hole. Then, the pelletizer is started. When the plastic enters the pelletizing frame, the cut plastic pellets fall into the pelletizer and onto the filter plate. When the plastic pellets meet the required diameter, they pass through the filter holes and fall onto the feeding plate. Plastic pellets that meet the diameter will flow out from the second discharge hole. Larger plastic pellets will remain on the filter plate and flow out through the first discharge hole. Plastic pellets that do not meet the diameter will fall into the collecting frame from the first discharge hole. Plastic pellets that need to be reprocessed can be collected directly, avoiding the process of re-sorting. During the normal operation of the pelletizer, the collection of unqualified pellets can be completed simultaneously without additional time and procedures to process these pellets, greatly improving the overall production efficiency.

[0018] II. Based on the first beneficial effect, through the setting of pelletizer, pelletizing frame, sorting component and installation component, when the collection frame is full of unqualified plastic particles, the operator can pull the movable rod to both sides. The movable rod drives the baffle to move outward at the same time. Under the synchronous action of the limit plate and the baffle, the spring is compressed, so that one end of the movable rod is withdrawn from the fixed hole, and the collection frame can be removed directly. It is quick and easy. When the collection frame is full, it can be quickly removed and the empty collection frame can be replaced. It can reduce equipment downtime and improve overall production efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-person perspective schematic diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the sorting component of this utility model;

[0022] Figure 3 This is a structural diagram of the sorting component of this utility model;

[0023] Figure 4 This is a structural diagram of the mounting components of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the image.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 11. Pelletizer; 12. Pelletizing frame;

[0027] 21. Filter plate; 211. Filter hole; 22. First discharge hole; 23. Feed plate; 24. Second discharge hole; 25. Support block; 26. Electric push rod; 27. Mounting plate; 271. Limiting block; 28. Limiting groove; 29. ​​Collection frame;

[0028] 31. Connecting block; 32. Fixing hole; 33. Limiting plate; 34. Movable rod; 35. Baffle; 36. Spring. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0033] Please see Figures 1 to 5 As shown, this embodiment is a pelletizer for producing plastic pellets with adjustable size, comprising:

[0034] A pelletizer 11 has a pelletizing frame 12 fixedly installed on its upper surface and a motor installed inside the pelletizer 11.

[0035] The pelletizer 11 is the key equipment in the entire plastic pellet production line to realize the plastic pelletizing function. After the plastic enters the pelletizer 11, the pelletizing frame 12 can play a certain supporting role. The motor is the power source of the pelletizer 11, and the motor provides rotational power to the pelletizing blade through operation.

[0036] The sorting assembly includes a filter plate 21, filter holes 211, a first discharge hole 22, a feeding plate 23, and a second discharge hole 24. The filter plate 21 is fixed inside the pelletizer 11, the filter holes 211 are opened on the surface of the filter plate 21, the first discharge hole 22 is opened on one side of the pelletizer 11, the feeding plate 23 is fixed inside the lower side of the pelletizer 11 and is connected to one end of the filter plate 21, and the second discharge hole 24 is opened on the other lower side of the pelletizer 11.

[0037] The filter plate 21 is located on the flow path of the plastic particles and is an important component for particle sorting. The filter holes 211 are the key structure for screening the size of the plastic particles. After the plastic particles are screened by the filter plate 21, the large particles left on the filter plate 21 will flow out of the pelletizer 11 through the first discharge hole 22 for centralized collection and reprocessing. The shape and inclination design of the feed plate 23 can guide the plastic particles to flow smoothly towards the second discharge hole 24.

[0038] A support block 25 is fixed to the lower end of one side of the pelletizer 11. An electric push rod 26 is fixed inside the support block 25. An installation plate 27 is fixed to the output end of the electric push rod 26.

[0039] A limiting block 271 is fixed on one side of the mounting plate 27, and two limiting grooves 28 are opened on one side of the pelletizer 11. The limiting block 271 slides through the limiting groove 28. A collection frame 29 is placed on the top surface of the mounting plate 27.

[0040] The support block 25 provides a stable mounting base for the electric push rod 26. The electric push rod 26 can drive the mounting plate 27 and the components mounted on the mounting plate to move vertically through telescopic movement. When the limiting block 271 moves under the drive of the electric push rod 26, the limiting groove 28 can ensure that the limiting block 271 moves along a fixed trajectory, so that the mounting plate 27 and the collecting frame 29 can also be adjusted in position along the accurate direction. The collecting frame 29 is used to collect large plastic particles discharged from the first discharge hole 22.

[0041] Working principle:

[0042] First, the operator starts the electric push rod 26 through the external controller. The electric push rod 26 drives the mounting plate 27 to move upward, and the mounting plate 27 drives the collection frame 29 to move upward until the collection frame 29 corresponds to the first discharge hole 22. Then, the pelletizer 11 is started. When the plastic enters the pelletizing frame 12, the cut plastic pellets will fall into the pelletizer 11 and onto the filter plate 21. When the plastic pellets meet the required diameter, they will pass through the filter hole 211 and fall onto the feeding plate 23. Plastic pellets that meet the diameter will flow out from the second discharge hole 24. Larger plastic pellets will remain on the filter plate 21 and flow out through the first discharge hole 22. Plastic pellets that do not meet the diameter will fall into the collection frame 29 from the first discharge hole 22. Plastic pellets that need to be processed again can be collected directly, avoiding the process of sorting again.

[0043] This step allows for the simultaneous collection of defective pellets during the normal operation of the pelletizer 11, eliminating the need for additional time and procedures to process these pellets and significantly improving overall production efficiency.

[0044] Please see Figures 1 to 5As shown; this embodiment, based on the above embodiment, further includes:

[0045] The mounting components include a connecting block 31, a fixing hole 32, and a limiting plate 33. The connecting block 31 is fixed to the lower ends of both sides of the collection frame 29, the fixing hole 32 is opened in the middle of one side of the connecting block 31, and the two limiting plates 33 are fixed to the middle of both sides of the mounting plate 27.

[0046] A circular hole is provided in the center of the limiting plate 33, and a movable rod 34 slides through the circular hole. A baffle 35 is fixed on one side of the movable rod 34.

[0047] A spring 36 is fixed to one side of the baffle 35, and the end of the movable rod 34 extends into the fixed hole 32.

[0048] The connecting block 31 connects the collection frame 29 to the mounting plate 27. The fixing hole 32 limits and locks the end of the movable rod 34. When the collection frame 29 needs to be removed, the end of the movable rod 34 extends into the fixing hole 32. The limiting plate 33 provides precise guidance for the movement of the movable rod 34. The main function of the baffle 35 is to transfer the pulling force applied to the movable rod 34 by the operator to the spring 36, so that the spring 36 is compressed. At the same time, as a connecting part of the spring 36, the baffle 35 can realize the automatic reset function under the elastic force of the spring 36.

[0049] Working principle:

[0050] When the collection box 29 is full of substandard plastic particles, the staff can pull the movable rod 34 to both sides. The movable rod 34 will simultaneously drive the baffle 35 to move outward. Under the synchronous action of the limiting plate 33 and the baffle 35, the spring 36 will be compressed, so that one end of the movable rod 34 will be removed from the fixing hole 32, and the collection box 29 can be removed directly.

[0051] This step allows for the rapid removal and replacement of empty collection boxes 29 once they are full, reducing equipment downtime and improving overall production efficiency.

[0052] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any 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 pelletizer for producing plastic pellets with adjustable size, characterized in that, include: pelletizer (11); The sorting assembly includes a filter plate (21), a filter hole (211), a first discharge hole (22), a feeding plate (23), and a second discharge hole (24). The filter plate (21) is fixed inside the pelletizer (11), the filter hole (211) is opened on the surface of the filter plate (21), the first discharge hole (22) is opened on one side of the pelletizer (11), the feeding plate (23) is fixed inside the lower side of the pelletizer (11), and the feeding plate (23) is connected to one end of the filter plate (21). The second discharge hole (24) is opened on the other lower side of the pelletizer (11).

2. The pelletizer for producing adjustable-size plastic pellets according to claim 1, characterized in that, A pelletizing frame (12) is fixedly installed on the upper surface of the pelletizer (11), and a motor is installed inside the pelletizer (11).

3. A pelletizer for producing adjustable-size plastic pellets according to claim 1, characterized in that, A support block (25) is fixed to the lower end of one side of the pelletizer (11), an electric push rod (26) is fixed inside the support block (25), and an installation plate (27) is fixed to the output end of the electric push rod (26).

4. A pelletizer for producing adjustable-size plastic pellets according to claim 3, characterized in that, A limiting block (271) is fixed on one side of the mounting plate (27), and two limiting grooves (28) are opened on one side of the pelletizer (11). The limiting block (271) slides through the limiting groove (28), and a collection frame (29) is placed on the top surface of the mounting plate (27).

5. A pelletizer for producing adjustable-size plastic pellets according to claim 4, characterized in that, It also includes an installation component, which includes a connecting block (31), a fixing hole (32), and a limiting plate (33). The connecting block (31) is fixed to the lower ends of both sides of the collection frame (29), the fixing hole (32) is opened in the middle of one side of the connecting block (31), and the two limiting plates (33) are fixed in the middle of both sides of the installation plate (27).

6. A pelletizer for producing adjustable-size plastic pellets according to claim 5, characterized in that, The center of the limiting plate (33) has a circular hole, and a movable rod (34) slides through the circular hole. A baffle (35) is fixed on one side of the movable rod (34).

7. A pelletizer for producing adjustable-size plastic pellets according to claim 6, characterized in that, A spring (36) is fixed to one side of the baffle (35), and the end of the movable rod (34) extends into the fixed hole (32).

Citation Information

Patent Citations

  • Plastic granulator

    CN206011499U