Efficient hot melting device for plastic granulation

Abstract

The utility model discloses an efficient hot melting device for plastic granulation, which comprises a working table, a heating cylinder mounted on the working table, a feed port arranged on the right upper side of the heating cylinder, a first heater mounted on the outer side of the heating cylinder, an extrusion mechanism mounted in the heating cylinder, a preheating cylinder arranged above the heating cylinder and fixed on the working table, a feeding cylinder is mounted at the top of the preheating cylinder, a crushing mechanism is mounted in the feeding cylinder, a preheating mechanism extending into the preheating cylinder is mounted at the top of the preheating cylinder, a second heater is mounted in the preheating cylinder, the preheating mechanism comprises a rotating shaft, a cross plate, an electric heating rod and a driving mechanism, the rotating shaft is rotationally connected to the preheating cylinder, and the cross plate is fixed to the bottom of the rotating shaft; a plurality of electric heating bars are installed on the lower side of the cross plate, and a driving mechanism used for driving the rotating shaft to rotate is installed at the top of the preheating cylinder. According to the utility model, the plastic is fully preheated firstly and then is heated to a molten state, so that the temperature difference of temperature rise is smaller, and the working efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic granulation, in particular to a high-efficiency hot-melt device for plastic granulation. Background Art

[0002] At present, plastics are granulated using granulators. The granulation process is: first heat the plastic to a molten state, then extrude the molten plastic to form long strips of plastic, then cool and cut the plastic to form plastic particles. However, the existing granulators directly heat the plastic at room temperature to a molten state when in use. The temperature difference of the entire heating process is large, resulting in a long heating time, which affects work efficiency. Therefore, in view of the above situation, it is urgent to develop a plastic granulation high-efficiency hot-melt device that first fully preheats the plastic and then heats the plastic to a molten state, with a smaller temperature difference and higher work efficiency, so as to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0003] The purpose of the utility model is to provide a high-efficiency hot-melt device for plastic granulation to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A high-efficiency hot-melt device for plastic granulation comprises a workbench, a heating cylinder, a first heater, an extrusion mechanism, a preheating cylinder, a feeding cylinder, a preheating mechanism, a crushing mechanism and a second heater. The workbench is equipped with a heating cylinder, a feeding port is arranged at the upper right corner of the heating cylinder, a first heater is arranged at the outer side of the heating cylinder, an extrusion mechanism is arranged in the heating cylinder, a preheating cylinder is arranged above the heating cylinder, the preheating cylinder is fixed on the workbench, a feeding cylinder is arranged at the top of the preheating cylinder, a crushing mechanism is arranged in the feeding cylinder, a preheating mechanism extending to the inside of the preheating cylinder is arranged at the top of the preheating cylinder, a second heater is arranged inside the preheating cylinder, and the preheating mechanism comprises: a rotating shaft, a cross plate, an electric heating rod and a driving mechanism. The rotating shaft is rotatably connected to the preheating cylinder, a cross plate is fixed at the bottom of the rotating shaft, a plurality of electric heating rods are arranged at the lower side of the cross plate, and a driving mechanism for driving the rotating shaft to rotate is arranged at the top of the preheating cylinder.

[0006] Preferably, a feeding pipe inserted into the feeding port is arranged at the bottom of the preheating cylinder.

[0007] Preferably: a discharge port is provided at the left end of the heating cylinder.

[0008] Preferably: the driving mechanism includes: a second motor, a first gear and a second gear, the second motor is fixed on the preheating cylinder, the first gear is installed on the output shaft of the second motor, a second gear meshing with the first gear is installed on one side of the first gear, and the second gear is installed on the rotating shaft.

[0009] Preferably: the extrusion mechanism includes: a spiral auger, a first motor, a driving wheel, a driven wheel and a transmission belt, the spiral auger is rotatably connected in the heating cylinder, the first motor is fixed on the workbench, a driving wheel is installed on the output shaft of the first motor, the driving wheel is connected to the driven wheel through a transmission belt, and the driven wheel is installed on the spiral auger.

[0010] Preferably: the crushing mechanism includes: a crushing roller, a third gear and a third motor, two crushing rollers are rotatably connected in the feeding barrel, each of the crushing rollers is installed with a third gear, the two third gears are meshed with each other, the third motor is fixed to the outside of the feeding barrel, and the output shaft of the third motor is connected to a crushing roller.

[0011] Preferably, the third gear is located outside the feeding cylinder.

[0012] The beneficial effects of the utility model are as follows: when the high-efficiency hot-melt device for plastic granulation is used, the plastic is added from the feeding barrel, the plastic is crushed by the crushing mechanism, and then the plastic falls into the preheating barrel, the second heater preheats the plastic, and the plastic in the preheating barrel is heated by the electric heating rod. At the same time, the first gear and the second gear are driven to rotate by the second motor, and the rotating shaft, the cross plate, and the electric heating rod are driven to rotate by the second gear, so that the electric heating rod and the plastic in the preheating barrel are in contact more fully and heated more evenly. The preheated plastic enters the feed port and the heating barrel from the feed tube, the plastic in the heating barrel is pushed to the left by the extrusion mechanism, and the plastic in the heating barrel is heated again by the first heater, so that the plastic is heated to a molten state. In summary, the utility model first fully preheats the plastic, and then heats the plastic to a molten state, the temperature difference of the temperature rise is smaller, and the working efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a partial structure diagram of the utility model Figure 1 .

[0015] Figure 3 For this utility model Figure 2 Internal cross-sectional view of .

[0016] Figure 4 It is a partial structure diagram of the utility model Figure 2 .

[0017] Figure 5 For this utility model Figure 4 Internal cross-sectional view of .

[0018] Figure 6 It is a partial structure diagram of the utility model Figure 3 .

[0019] Figure 7 It is a partial structure diagram of the utility model Figure 4 .

[0020] Legend:

[0021] 1. Workbench; 2. Heating cylinder; 201. Feeding port; 202. Discharging port; 3. First heater; 4. Extrusion mechanism; 401. Screw auger; 402. First motor; 403. Driving wheel; 404. Driven wheel; 405. Transmission belt; 5. Preheating cylinder; 501. Feeding pipe; 6. Feeding cylinder; 7. Preheating mechanism; 701. Rotating shaft; 702. Cross plate; 703. Electric heating rod; 704. Driving mechanism; 7041. Second motor; 7042. First gear; 7043. Second gear; 8. Crushing mechanism; 801. Crushing roller; 802. Third gear; 803. Third motor; 9. Second heater. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] See also Figure 1 to Figure 7In the embodiment of the utility model, a high-efficiency hot-melt device for plastic granulation includes a workbench 1, a heating cylinder 2, a first heater 3, an extrusion mechanism 4, a preheating cylinder 5, a feeding cylinder 6, a preheating mechanism 7, a crushing mechanism 8 and a second heater 9. The workbench 1 is provided with a heating cylinder 2, a feeding port 201 is provided at the upper right side of the heating cylinder 2, a discharge port 202 is provided at the left end of the heating cylinder 2, a first heater 3 is provided on the outer side of the heating cylinder 2, an extrusion mechanism 4 is provided in the heating cylinder 2, a preheating cylinder 5 is provided above the heating cylinder 2, the preheating cylinder 5 is fixed on the workbench 1, a feeding tube 501 inserted into the feeding port 201 is provided at the bottom of the preheating cylinder 5, and a feeding cylinder is provided on the top of the preheating cylinder 5. 6, a crushing mechanism 8 is installed in the feeding cylinder 6, a preheating mechanism 7 extending to the inside of the preheating cylinder 5 is installed on the top of the preheating cylinder 5, and a second heater 9 is installed inside the preheating cylinder 5. When in use, plastic is added from the feeding cylinder 6, and the plastic is crushed by the crushing mechanism 8. Then, the plastic falls into the preheating cylinder 5, and the plastic is preheated by the preheating mechanism 7 and the second heater 9. The preheated plastic enters the feed port 201 and the heating cylinder 2 from the discharge pipe 501, and the plastic in the heating cylinder 2 is pushed to the left by the extrusion mechanism 4. At the same time, the plastic in the heating cylinder 2 is heated again by the first heater 3, so that the plastic is heated to a molten state. Finally, the plastic is extruded from the discharge port 202 for subsequent cooling and pelletizing.

[0025] The extrusion mechanism 4 includes: a spiral auger 401, a first motor 402, a driving wheel 403, a driven wheel 404 and a transmission belt 405. The spiral auger 401 is rotatably connected to the heating cylinder 2. The first motor 402 is fixed on the workbench 1. The driving wheel 403 is installed on the output shaft of the first motor 402. The driving wheel 403 is transmission-connected to the driven wheel 404 through the transmission belt 405. The driven wheel 404 is installed on the spiral auger 401. When in use, the driving wheel 403 and the driven wheel 404 are driven to rotate by the first motor 402, and the spiral auger 401 is driven to rotate by the driven wheel 404, so that the plastic in the heating cylinder 2 is transported by the spiral auger 401.

[0026] The preheating mechanism 7 includes: a rotating shaft 701, a cross plate 702, an electric heating rod 703 and a driving mechanism 704. The rotating shaft 701 is rotatably connected to the preheating cylinder 5. A cross plate 702 is fixed to the bottom of the rotating shaft 701. A plurality of electric heating rods 703 are installed on the lower side of the cross plate 702. A driving mechanism 704 for driving the rotating shaft 701 to rotate is installed on the top of the preheating cylinder 5. The driving mechanism 704 includes: a second motor 7041, a first gear 7042 and a second gear 7043. The second motor 7041 is fixed to the preheating cylinder 5. The second motor 7041 is fixed to the preheating cylinder 5. A first gear 7042 is installed on the output shaft of 041, and a second gear 7043 meshing with the first gear 7042 is installed on one side of the first gear 7042, and the second gear 7043 is installed on the rotating shaft 701. When in use, the plastic in the preheating tube 5 is heated by the electric heating rod 703. At the same time, the first gear 7042 and the second gear 7043 are driven to rotate by the second motor 7041, and the rotating shaft 701, the cross plate 702, and the electric heating rod 703 are driven to rotate by the second gear 7043, so that the electric heating rod 703 can be more fully in contact with the plastic in the preheating tube 5 and the heating can be more evenly performed.

[0027] The pulverizing mechanism 8 includes: a pulverizing roller 801, a third gear 802 and a third motor 803. Two pulverizing rollers 801 are rotatably connected in the feeding barrel 6. A third gear 802 is installed on each of the pulverizing rollers 801. The two third gears 802 are meshed with each other. The third gear 802 is located on the outside of the feeding barrel 6. The third motor 803 is fixed to the outside of the feeding barrel 6. The output shaft of the third motor 803 is connected to a pulverizing roller 801. When in use, the two pulverizing rollers 801 are driven to rotate by the third motor 803, and the plastic is pulverized by the two pulverizing rollers 801.

[0028] Working principle: When the plastic granulation high-efficiency hot-melt device is used, the plastic is added from the feeding barrel 6, and the plastic is crushed by the crushing mechanism 8. Then, the plastic falls into the preheating barrel 5, and the second heater 9 preheats the plastic. The plastic in the preheating barrel 5 is heated by the electric heating rod 703. At the same time, the first gear 7042 and the second gear 7043 are driven to rotate by the second motor 7041, and the rotating shaft 701, the cross plate 702, and the electric heating rod 703 are driven to rotate by the second gear 7043, so that the electric heating rod 703 and the plastic in the preheating barrel 5 are more fully in contact and heated more evenly. The preheated plastic enters the feed port 201 and the heating barrel 2 from the discharge pipe 501, and the plastic in the heating barrel 2 is pushed to the left by the extrusion mechanism 4. The plastic in the heating barrel 2 is heated again by the first heater 3, so that the plastic is heated to a molten state.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency hot-melt device for plastic granulation, characterized in that: The invention comprises a workbench (1), a heating cylinder (2), a first heater (3), an extrusion mechanism (4), a preheating cylinder (5), a feeding cylinder (6), a preheating mechanism (7), a pulverizing mechanism (8) and a second heater (9), wherein the workbench (1) is provided with a heating cylinder (2), a feeding port (201) is arranged at the upper right corner of the heating cylinder (2), the outer side of the heating cylinder (2) is provided with a first heater (3), the interior of the heating cylinder (2) is provided with an extrusion mechanism (4), a preheating cylinder (5) is arranged above the heating cylinder (2), the preheating cylinder (5) is fixed on the workbench (1), a feeding cylinder (6) is arranged on the top of the preheating cylinder (5), and the feeding cylinder (8) is provided on the upper right corner of the preheating cylinder (5). 6) is provided with a crushing mechanism (8), a preheating mechanism (7) extending into the interior of the preheating cylinder (5) is provided at the top of the preheating cylinder (5), a second heater (9) is provided inside the preheating cylinder (5), the preheating mechanism (7) comprises: a rotating shaft (701), a cross plate (702), an electric heating rod (703) and a driving mechanism (704), the rotating shaft (701) is rotatably connected to the preheating cylinder (5), a cross plate (702) is fixed at the bottom of the rotating shaft (701), a plurality of electric heating rods (703) are provided on the lower side of the cross plate (702), and a driving mechanism (704) for driving the rotating shaft (701) to rotate is provided at the top of the preheating cylinder (5).

2. The high-efficiency hot-melt device for plastic granulation according to claim 1 is characterized in that: The bottom of the preheating cylinder (5) is provided with a feeding pipe (501) which is inserted into the feeding port (201).

3. The high-efficiency hot-melt device for plastic granulation according to claim 1 is characterized in that: The left end of the heating cylinder (2) is provided with a discharge port (202).

4. The high-efficiency hot-melt device for plastic granulation according to claim 1 is characterized in that: The driving mechanism (704) comprises: a second motor (7041), a first gear (7042) and a second gear (7043); the second motor (7041) is fixed on the preheating cylinder (5); the first gear (7042) is mounted on the output shaft of the second motor (7041); a second gear (7043) meshing with the first gear (7042) is mounted on one side of the first gear (7042); and the second gear (7043) is mounted on the rotating shaft (701).

5. The high-efficiency hot-melt device for plastic granulation according to claim 1 is characterized in that: The extrusion mechanism (4) comprises: a spiral auger (401), a first motor (402), a driving wheel (403), a driven wheel (404) and a transmission belt (405); the spiral auger (401) is rotatably connected to the heating cylinder (2); the first motor (402) is fixed on the workbench (1); a driving wheel (403) is mounted on the output shaft of the first motor (402); the driving wheel (403) is transmission-connected to the driven wheel (404) via a transmission belt (405); and the driven wheel (404) is mounted on the spiral auger (401).

6. The high-efficiency hot-melt device for plastic granulation according to claim 1, characterized in that: The pulverizing mechanism (8) comprises: a pulverizing roller (801), a third gear (802) and a third motor (803); two pulverizing rollers (801) are rotatably connected in the feeding barrel (6); a third gear (802) is mounted on each of the pulverizing rollers (801); the two third gears (802) are meshed with each other; the third motor (803) is fixed to the outside of the feeding barrel (6); and the output shaft of the third motor (803) is connected to a pulverizing roller (801).

7. The high-efficiency hot-melt device for plastic granulation according to claim 6, characterized in that: The third gear (802) is located outside the feeding cylinder (6).

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