Plastic particle softening treatment device
By setting a preheating chamber and a crushing chamber at the top of the screw extruder, and using structures such as isolation covers and heating pipes to crush and preheat plastic particles, the problem of uneven plastic softening is solved, resulting in a more efficient softening effect and extended equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-24
AI Technical Summary
Existing screw extruders have problems with uneven and incomplete softening of plastic granules, which leads to malfunctions and potential damage to the equipment.
A preheating chamber and a crushing chamber are set at the top of the screw extruder, equipped with an isolation cover, heating tube, stirring shaft and stirring shaft, to ensure uniform heating and softening of plastic raw materials by crushing and preheating.
It improves the uniformity and thoroughness of softening of plastic raw materials, extends the service life of the screw extruder, and avoids equipment damage.
Smart Images
Figure CN224028041U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of plastic processing, specifically to a plastic particle softening treatment device. BACKGROUND
[0002] The softening treatment of plastic particles is a key step in plastic processing and recycling, and the purpose is to make the plastic reach a plastic state through physical or chemical means, so as to facilitate molding or recycling.
[0003] At present, the plastic needs to be softened before subsequent processing (such as extrusion) in the plastic processing process. The existing softening equipment mostly adopts a screw extruder. However, the plastic raw material has a certain hardness, and direct addition to the screw extruder for softening will cause uneven softening, which further leads to the in smooth operation of the screw extruder, thereby causing damage to the screw extruder, which needs to be improved. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a plastic particle softening treatment device to solve the problem of uneven and incomplete softening of the screw extruder.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plastic particle softening treatment device, comprising a spiral extruder body, a preheating bin is arranged at the top end of the spiral extruder body, an isolation cover is integrally connected inside the preheating bin, a heating pipe is arranged between the isolation cover and the preheating bin, the isolation cover is of an annular structure, a protective cover is arranged inside the isolation cover, a first stirring shaft and a second stirring shaft are arranged between the isolation cover and the protective cover, a first conveying belt and a second conveying belt are respectively sleeved on one side of the first stirring shaft and the second stirring shaft, a crushing bin is arranged at the top end of the preheating bin, a crushing knife shaft is rotatably connected inside the crushing bin, the crushing knife shaft is connected with the first conveying belt and the second conveying belt on both sides, and a motor is connected on one side of the crushing knife shaft.
[0006] Preferably, the heating pipe is annularly and equidistantly distributed in the preheating bin, and the first stirring shaft and the second stirring shaft are rotatably connected on both sides of the preheating bin.
[0007] Preferably, one end of the first stirring shaft and the second stirring shaft penetrates through the isolation cover and is located inside the isolation cover, and a first blade and a second blade are respectively fixed on the outer wall of the first stirring shaft and the second stirring shaft.
[0008] Preferably, the surface of the protective cover is of a mesh structure, and a heating pipe is also arranged inside the protective cover.
[0009] Preferably, the first blade and the second blade are annularly and equidistantly distributed on the outer wall of the first stirring shaft and the second stirring shaft, respectively.
[0010] Preferably, the top of the crushing bin is connected with a feeding pipe, and the crushing bin is fixedly connected with the preheating bin through a support.
[0011] Preferably, the bottom of the preheating bin is provided with a discharge port, and an electromagnetic valve is mounted on the discharge port.
[0012] Compared with the prior art, the device has the advantages that:
[0013] (1) The device can improve the uniformity and completeness of the softening of the plastic raw material, thereby ensuring the service life of the screw extruder.
[0014] (2) The device sets a preheating bin on the top of the screw extruder, sets a crushing bin on the top of the preheating bin, and softens the plastic raw material after preheating after crushing, so as to ensure the uniformity and completeness of the softening of the plastic raw material.
[0015] (3) The device sets heating pipes inside and outside the isolation cover in the preheating bin, so that the plastic raw material passing through the inside of the isolation cover can be uniformly preheated, and the softening time of the subsequent screw extruder is shortened. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structure schematic view of the plastic particle softening treatment device.
[0017] Figure 2 It is a sectional view of the plastic particle softening treatment device.
[0018] Figure 3 It is a sectional view of the plastic particle softening treatment device. Figure 2 It is an enlarged view of A in the middle.
[0019] Figure 4 It is a preheating bin of the plastic particle softening treatment device.
[0020] In the figure: 1, feeding pipe; 2, crushing bin; 3, first conveying belt; 4, preheating bin; 5, first stirring shaft; 6, motor; 7, second conveying belt; 8, second stirring shaft; 9, screw extruder; 10, electromagnetic valve; 11, crushing knife shaft; 12, isolation cover; 13, protective cover; 14, heating pipe; 15, first blade; 16, second blade. DETAILED DESCRIPTION
[0021] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0022] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of plastic particle softening treatment device, including spiral extruder body 9, spiral extruder body 9 top is provided with preheating bin 4, preheating bin 4 inside is integrally connected with isolator 12, heating pipe 14 is arranged between isolator 12 and preheating bin 4, heating pipe 14 about preheating bin 4 inner wall is circular ring and has multiple equidistant distribution, the both sides of preheating bin 4 are rotatably connected with first stirring shaft 5 and second stirring shaft 8;The one end of first stirring shaft 5 and second stirring shaft 8 penetrates isolator 12 and is located inside isolator 12, and the outer wall of first stirring shaft 5 and second stirring shaft 8 is respectively fixed with first blade 15 and second blade 16;This structure can isolate heating pipe 14 and material by isolator 12, avoid material too close to heating pipe 14;First blade 15 and second blade 16 are respectively circular ring and have equidistant distribution about the outer wall of first stirring shaft 5 and second stirring shaft 8;This structure can drive first blade 15 and second blade 16 to stir the material inside preheating bin 4 by first stirring shaft 5 and second stirring shaft 8 respectively, thereby improve the uniformity of material preheating;Preheating bin 4 bottom is provided with discharge gate, and solenoid valve 10 is installed on discharge gate;This structure can realize the automatic opening and closing of preheating bin 4 discharge gate by solenoid valve 10, so that intermittent feeding into spiral extruder body 9 can be realized, to avoid the phenomenon of incomplete softening caused by excessive feeding;Isolator 12 is annular structure, and protective cover 13 is arranged in isolator 12, the surface of protective cover 13 is mesh structure, and heating pipe 14 is also arranged in protective cover 13;This structure can isolate heating pipe 14 and material by protective cover 13, to avoid the phenomenon of sticking caused by excessive preheating due to material too close to heating pipe 14;First stirring shaft 5 and second stirring shaft 8 are arranged between isolator 12 and protective cover 13, and first stirring shaft 5 and second stirring shaft 8 are respectively sleeved with first conveying belt 3 and second conveying belt 7, preheating bin 4 top is provided with crushing bin 2, crushing bin 2 top is connected with feeding pipe 1, and crushing bin 2 is fixedly connected with preheating bin 4 by support;This structure can ensure the stability of crushing bin 2;Preheating bin 4 is fixed on the top of spiral extruder body 9 by support;Crushing blade shaft 11 is rotatably connected in crushing bin 2, and the both sides of crushing blade shaft 11 are respectively connected with first conveying belt 3 and second conveying belt 7, and motor 6 is connected on one side of crushing blade shaft 11;The motor 6 of the device can drive crushing blade shaft 11 and outer wall blade to rotate automatically, so as to crush material, reduce the volume of material, and be beneficial to the heating and softening of material;The both sides of crushing blade shaft 11 can drive first stirring shaft 5 and second stirring shaft 8 to rotate by first conveying belt 3 and second conveying belt 7 through the rotation of crushing blade shaft 11;The feeding pipe 1 of the device is connected with material box, and the feeding is automatically carried out by the way of negative pressure adsorption, which is prior art, so it is not described in detail here.
[0023] Working principle: when using the plastic particle softening treatment device, first, the plastic raw material enters into the crushing bin 2 through the feeding pipe 1, the motor 6 drives the crushing cutter shaft 11 to crush the plastic raw material, the crushed plastic raw material enters into the preheating bin 4 between the isolation cover 12 and the protective cover 13, at this time, the heating pipe 14 on the outer wall of the protective cover 13 and the isolation cover 12 starts to heat the plastic raw material, so that the plastic raw material is preheated, in the preheating process, the first conveying belt 3 and the second conveying belt 7 drive the first stirring shaft 5 and the second stirring shaft 8 to rotate, the first stirring shaft 5 and the second stirring shaft 8 drive the first blade 15 and the second blade 16 to uniformly stir the plastic raw material in the rotating process, then the electromagnetic valve 10 is opened, and the plastic raw material enters into the spiral extruder body 9 to be quickly softened.
[0024] 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 recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A plastic particle softening treatment device comprising a screw extruder body (9), the top end of the screw extruder body (9) is provided with a preheating bin (4), characterized in that: The preheating bin (4) is integrally connected with a isolation cover (12), the isolation cover (12) and the preheating bin (4) are provided with a heating pipe (14), the isolation cover (12) is an annular structure, the isolation cover (12) is provided with a protective cover (13), the isolation cover (12) and the protective cover (13) are provided with a first stirring shaft (5) and a second stirring shaft (8), the first stirring shaft (5) and the second stirring shaft (8) are respectively provided with a first conveying belt (3) and a second conveying belt (7), the preheating bin (4) is provided with a crushing bin (2) at the top, the crushing bin (2) is rotatably connected with a crushing knife shaft (11), the crushing knife shaft (11) is connected with a motor (6) on one side.
2. The plastic pellet softening apparatus according to claim 1, wherein: The heating pipe (14) is circularly and equally spaced on the inner wall of the preheating bin (4), and the preheating bin (4) is rotatably connected with a first stirring shaft (5) and a second stirring shaft (8) on both sides.
3. The plastic pellet softening apparatus of claim 1, wherein: The first stirring shaft (5) and the second stirring shaft (8) penetrate the isolation cover (12) and are located inside the isolation cover (12), and the outer wall of the first stirring shaft (5) and the second stirring shaft (8) is respectively fixed with a first blade (15) and a second blade (16).
4. The plastic pellet softening apparatus of claim 1, wherein: The protective cover (13) is a mesh structure, and the protective cover (13) is also provided with a heating pipe (14).
5. The plastic pellet softening apparatus of claim 3, wherein: The first blade (15) and the second blade (16) are circularly and equally spaced on the outer wall of the first stirring shaft (5) and the second stirring shaft (8) respectively.
6. The plastic pellet softening apparatus of claim 1, wherein: The crushing bin (2) is connected with a feeding pipe (1) at the top, and the crushing bin (2) is fixedly connected with the preheating bin (4) through a support.
7. The plastic pellet softening apparatus of claim 1, wherein: The preheating bin (4) is provided with a discharge port at the bottom, and the discharge port is provided with a solenoid valve (10).