High-heat-resistance polylactic resin degradation device

By incorporating stirring blades and cutting blades into the degradation device, and driving the stirring blades and cutting blades to rotate via a rotating shaft, the problem of slow degradation rate of high heat-resistant polylactic acid resin is solved, achieving a highly efficient degradation effect.

CN224128207UActive Publication Date: 2026-04-17PUYANG JINGSEN NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PUYANG JINGSEN NEW MATERIAL TECH CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The degradation rate of existing high heat-resistant polylactic acid resins is too slow to meet application requirements, thus limiting their application scope.

Method used

A high heat-resistant polylactic acid resin degradation device was designed, which includes a stirring blade and a cutting blade. The stirring blade and the cutting blade are driven to rotate by a rotating shaft to promote the full mixing of polylactic acid resin and degradation solution, and to cut and decompose it into fragments.

Benefits of technology

It significantly improves the degradation efficiency of polylactic acid resin, shortens the degradation time, and facilitates operation by staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of polylactic acid resin, and discloses a high-heat-resistance polylactic acid resin degradation device which comprises a degradation cabin, the top of the degradation cabin is fixedly connected with a feed opening, the front side of the degradation cabin is provided with an observation window, the rear end of the degradation cabin is fixedly connected with a servo motor, and the servo motor is connected with the feed opening. A rotating shaft is rotatably connected to the output end of the servo motor, stirring blades are fixedly connected to the surface of the rotating shaft, a cutting knife is fixedly connected to the surface of the rotating shaft, a water pump is fixedly connected to the upper portion of the rear side of the degradation cabin, a liquid inlet pipe fixedly communicates with the rear end of the water pump, and a liquid outlet pipe fixedly communicates with the top of the water pump. A cutting knife, a rotating shaft and the like are arranged to be used in cooperation, the rotating shaft drives the cutting knife to rotate so as to cut and decompose high-heat-resistance polylactic acid resin into fragments, the fragments are used in cooperation with stirring blades so that the fragments can be fully mixed with a degradation solution, the degradation efficiency is further improved, and workers can use the high-heat-resistance polylactic acid resin degradation device conveniently.
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Description

Technical Field

[0001] This utility model relates to the field of polylactic acid resin degradation technology, specifically to a high heat-resistant polylactic acid resin degradation device. Background Technology

[0002] Polylactic acid (PLA) is a polymer obtained by polymerizing lactic acid as the main raw material. The raw material source is abundant and renewable. The production process of PLA is pollution-free, and the product is biodegradable, achieving a cycle in nature. Therefore, it is an ideal green polymer material.

[0003] The degradation rate of current polylactic acid (PLA) materials is too slow, which cannot meet the needs of applications and thus limits the scope of use of the material. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high heat-resistant polylactic acid resin degradation device to solve the problem mentioned in the background art that the degradation rate of current high heat-resistant polylactic acid resin materials is too slow, and the degradation rate cannot meet the needs of applications, thus limiting the scope of use of the material.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high heat-resistant polylactic acid resin degradation device, comprising a degradation chamber, a discharge port fixedly connected to the top of the degradation chamber, support legs fixedly connected to both sides of the degradation chamber, an observation window provided on the front side of the degradation chamber, a discharge pipe fixedly connected to the bottom of the degradation chamber, a plug threadedly connected to the bottom of the discharge pipe, a servo motor fixedly connected to the rear end of the degradation chamber, a rotating shaft rotatably connected to the output end of the servo motor, a stirring blade fixedly connected to the surface of the rotating shaft, a cutting blade fixedly connected to the surface of the rotating shaft, a water pump fixedly connected to the upper rear side of the degradation chamber, an inlet pipe fixedly connected to the rear end of the water pump, an outlet pipe fixedly connected to the top of the water pump, and a PLC controller fixedly connected to the right rear side of the degradation chamber.

[0006] Preferably, the servo motor is electrically connected to the PLC controller, and the PLC controller is electrically connected to the water pump.

[0007] Preferably, the number of stirring blades is several, and the several stirring blades are distributed in a ring array on the surface of the rotating shaft, and the spacing between the several stirring blades is the same.

[0008] By adopting the above technical solution, and by setting up stirring blades and rotating shafts in combination, the rotating shaft drives the stirring blades to rotate, thereby continuously stirring the high heat-resistant polylactic acid resin to fully mix it with the degradation solution, which effectively improves the degradation efficiency and makes it convenient for staff to use.

[0009] Preferably, the number of cutting blades is several, and the several cutting blades are distributed in a ring array on the surface of the rotating shaft, and the several cutting blades are staggered from the several stirring blades.

[0010] By adopting the above technical solution, and by setting up a cutting blade and a rotating shaft for coordinated use, the rotating shaft drives the cutting blade to rotate, thereby cutting and decomposing the high heat-resistant polylactic acid resin into fragments, which are then fully mixed with the degradation solution, further improving the degradation efficiency and making it easier for staff to use.

[0011] Preferably, the top of the outlet pipe penetrates the top wall of the degradation chamber and extends to the upper interior of the degradation chamber.

[0012] Preferably, the output end of the servo motor passes through the rear wall of the degradation chamber and extends into the interior of the degradation chamber.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This high heat-resistant polylactic acid resin degradation device, through the use of a cutting blade and a rotating shaft, etc., the rotating shaft drives the cutting blade to rotate, thereby cutting and decomposing the high heat-resistant polylactic acid resin into fragments. When used with a stirring blade, it is fully mixed with the degradation solution, which further improves the degradation efficiency and makes it easy for staff to use.

[0015] 2. This high heat-resistant polylactic acid resin degradation device, through the use of a cutting blade and a rotating shaft, etc., the rotating shaft drives the cutting blade to rotate, thereby cutting and decomposing the high heat-resistant polylactic acid resin into fragments. When used with a stirring blade, it is fully mixed with the degradation solution, which further improves the degradation efficiency and makes it easy for staff to use. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the degradation chamber of this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating shaft structure of this utility model.

[0020] In the diagram: 1. Degradation chamber; 2. Support leg; 3. Observation window; 4. Discharge pipe; 5. Plug; 6. Discharge port; 7. Servo motor; 8. Rotating shaft; 9. Stirring blade; 10. Cutting blade; 11. PLC controller; 12. Water pump; 13. Liquid inlet pipe; 14. Liquid outlet pipe. 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] Example 1:

[0023] Referring to Figures 1-3, a high heat-resistant polylactic acid resin degradation device includes a degradation chamber 1. A discharge port 6 is fixedly connected to the top of the degradation chamber 1. Support legs 2 are fixedly connected to both sides of the degradation chamber 1. An observation window 3 is provided on the front side of the degradation chamber 1. A discharge pipe 4 is fixedly connected to the bottom of the degradation chamber 1, and a plug 5 is threadedly connected to the bottom of the discharge pipe 4. A servo motor 7 is fixedly connected to the rear end of the degradation chamber 1. A rotating shaft 8 is rotatably connected to the output end of the servo motor 7. A stirring blade 9 is fixedly connected to the surface of the rotating shaft 8. The number of stirring blades 9 is several, and the several stirring blades 9 are arranged in a ring array. The rotating shaft 8 has several stirring blades 9 with the same spacing. A cutting blade 10 is fixedly connected to the surface of the rotating shaft 8. A water pump 12 is fixedly connected to the upper rear side of the degradation chamber 1. An inlet pipe 13 is fixedly connected to the rear end of the water pump 12. An outlet pipe 14 is fixedly connected to the top of the water pump 12. The top of the outlet pipe 14 penetrates the top wall of the degradation chamber 1 and extends to the upper interior of the degradation chamber 1. A PLC controller 11 is fixedly connected to the right rear side of the degradation chamber 1. A servo motor 7 is electrically connected to the PLC controller 11. The PLC controller 11 is electrically connected to the water pump 12.

[0024] Working principle: During use, the operator puts the high heat-resistant polylactic acid resin to be degraded into the interior of the degradation chamber 1 through the discharge port 6 at the top of the degradation chamber 1. Then, the operator starts the water pump 12 and servo motor 7 through the PLC controller 11. The water pump 12 draws out the pre-prepared degradation solution through the inlet pipe 13 and delivers it into the interior of the degradation chamber 1 through the outlet pipe 14. The servo motor 7 drives the rotating shaft 8 to rotate through the output end. The rotation of the rotating shaft 8 drives the stirring blade 9 to rotate. The rotation of the stirring blade 9 continuously stirs the high heat-resistant polylactic acid resin to fully mix it with the degradation solution, thereby improving the degradation efficiency. The operator can observe the degradation situation inside the degradation chamber 1 through the observation window 3. When the degradation is completed, the operator can open the plug 5 and discharge the degradation solution through the discharge port 6 for convenient use.

[0025] Compared with related technologies, the high heat-resistant polylactic acid resin degradation device provided by this utility model has the following beneficial effects: by setting up stirring blades 9, rotating shaft 8 and other components for use, the rotating shaft 8 drives the stirring blades 9 to rotate, and the rotation of the rotating shaft 8 continuously stirs the high heat-resistant polylactic acid resin in the degradation chamber 1, so that it is fully mixed with the degradation solution, which effectively improves the degradation efficiency and is convenient for staff to use.

[0026] Example 2:

[0027] Referring to Figures 1-4, a servo motor 7 is fixedly connected to the rear end of the degradation chamber 1. The output end of the servo motor 7 passes through the rear wall of the degradation chamber 1 and extends into the interior of the degradation chamber 1. A rotating shaft 8 is rotatably connected to the output end of the servo motor 7. A stirring blade 9 is fixedly connected to the surface of the rotating shaft 8. A cutting blade 10 is fixedly connected to the surface of the rotating shaft 8. There are several cutting blades 10, which are arranged in a ring array on the surface of the rotating shaft 8, and the cutting blades 10 and the stirring blades 9 are staggered.

[0028] Working principle: When the servo motor 7 drives the stirring blade 9 to rotate through the rotating shaft 8, the cutting blade 10 located on the surface of the rotating shaft 8 will also rotate together. The high-speed rotation of the cutting blade 10 will cut and decompose the high heat-resistant polylactic acid resin inside the degradation chamber 1 into fragments, thereby reducing the volume of the high heat-resistant polylactic acid resin, reducing the degradation time, further improving the degradation efficiency, and making it easier for staff to use.

[0029] Compared with related technologies, the high heat-resistant polylactic acid resin degradation device provided by this utility model has the following beneficial effects: by setting up a cutting blade 10 and a rotating shaft 8 for use, the rotating shaft 8 drives the cutting blade 10 to rotate, thereby cutting and decomposing the high heat-resistant polylactic acid resin into fragments. When used with a stirring blade 9, it is fully mixed with the degradation solution, which further improves the degradation efficiency and makes it easier for staff to use.

[0030] 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 high-heat-resistant polylactic acid resin degradation apparatus comprising a degradation chamber (1), characterized by: The top of the degradation chamber (1) is fixedly connected to a discharge port (6), the two sides of the degradation chamber (1) are fixedly connected to support legs (2), the front side of the degradation chamber (1) is provided with an observation window (3), the bottom of the degradation chamber (1) is fixedly connected to a discharge pipe (4), the bottom of the discharge pipe (4) is threadedly connected to a plug (5), the rear end of the degradation chamber (1) is fixedly connected to a servo motor (7), the output end of the servo motor (7) is rotatably connected to a rotating shaft (8), the surface of the rotating shaft (8) is fixedly connected to a stirring blade (9), the surface of the rotating shaft (8) is fixedly connected to a cutting blade (10), the upper rear side of the degradation chamber (1) is fixedly connected to a water pump (12), the rear end of the water pump (12) is fixedly connected to an inlet pipe (13), the top of the water pump (12) is fixedly connected to an outlet pipe (14), and the right rear side of the degradation chamber (1) is fixedly connected to a PLC controller (11).

2. The device for degrading a high-heat-resistant polylactic acid resin according to claim 1, characterized by: The servo motor (7) is electrically connected to the PLC controller (11), and the PLC controller (11) is electrically connected to the water pump (12).

3. The device according to claim 1, wherein the device is characterized by: The number of stirring blades (9) is several, and the several stirring blades (9) are arranged in a ring array on the surface of the rotating shaft (8), and the spacing between the several stirring blades (9) is the same.

4. The device according to claim 1, wherein the device is characterized by: The number of the cutting blades (10) is several, and the several cutting blades (10) are arranged in a ring array on the surface of the rotating shaft (8), and the several cutting blades (10) are staggered from the several stirring blades (9).

5. The device for degrading a highly heat-resistant polylactic acid resin according to claim 1, wherein: The top of the liquid outlet pipe (14) penetrates the top wall of the degradation chamber (1) and extends to the upper interior of the degradation chamber (1).

6. The device according to claim 1, wherein the device is a device for degrading a high heat-resistant polylactic acid resin. The output end of the servo motor (7) passes through the rear wall of the degradation chamber (1) and extends into the interior of the degradation chamber (1).