Plastic particle melting device
By using a inclined heating structure for guiding materials and a high-frequency vibration box design, the problems of uneven heating of plastic particles and low discharge efficiency in existing devices have been solved, achieving full melting of plastic particles and rapid discharge of liquid plastic, thus improving melting uniformity and discharge efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAOMING YINGMEIDA PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-17
AI Technical Summary
Existing melting equipment is difficult to heat plastic granules uniformly and fully, and plastic granules are easily mixed into the liquid plastic, affecting the uniformity and quality of melting. At the same time, the discharge efficiency of liquid plastic is low.
The device employs a guide slope heating structure and a high-frequency vibration box design. The guide slope allows the plastic particles to be uniformly heated and melted between the first and second heating surfaces, while the high-frequency vibration generated by the pulse electromagnet promotes the rapid flow and discharge of the liquid plastic.
This process achieves complete melting of plastic particles, improves the uniformity of the melt, avoids the mixing of plastic particles into the melt, and enhances the discharge efficiency of liquid plastic.
Smart Images
Figure CN224130317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic granule melting technology, specifically a plastic granule melting device. Background Technology
[0002] Plastic granule melting refers to the process by which plastic granules change from a solid state to a uniform viscous flow state after being heated. After the plastic granules change to a uniform viscous flow state, they enter the injection molding machine and are then injection molded into plastic products. A melting device is required in the process of melting plastic granules.
[0003] A plastic granule melting device is used to heat and melt plastic granules into liquid plastic. Its main structure and principle are as follows: Heating system: Includes heaters, heating coils, etc., used to heat the plastic granules to their melting temperature. Melting chamber: A container housing the heating system, used to hold and heat the plastic granules, melting them into liquid plastic. Temperature control system: Used to monitor and control the temperature of the melting chamber, ensuring the plastic granules melt within a suitable temperature range. Principle: The working principle of the plastic granule melting device is mainly to heat the plastic granules through the heating system, gradually increasing their temperature until they reach the melting point, at which point the plastic granules begin to melt into liquid plastic.
[0004] Existing melting devices struggle to heat plastic granules evenly and sufficiently during the melting process, leading to the easy mixing of plastic granules into the liquid plastic, resulting in poor melting uniformity and affecting the quality of the melt. Therefore, a plastic granule melting device is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a plastic particle melting device.
[0006] The technical solution adopted by this utility model to solve its technical problem is a plastic granule melting device, including a stand, a fixed base mounted on the stand, a control panel mounted on the side wall of the fixed base, a box slidably connected to the fixed base, a collection bin fixedly mounted on the inner wall of the box, a discharge port provided on the bottom side of the collection bin, multiple sets of connecting rods mounted on the bottom side of the collection bin, a heating platform mounted on the bottom side of the connecting rods, a guiding inclined surface provided at the top of the heating platform, the side wall of the heating platform being a first heating surface, a first heating plate installed inside the heating platform, the inner wall of the box being a second heating surface, a second heating plate installed inside the side wall of the box, and the first heating plate and the second heating plate being connected to the control panel via internal circuitry. The box is connected to a plate. A discharge pipe is installed on the bottom side of the box, and a solenoid valve is installed on the discharge pipe. The solenoid valve is connected to the control panel through an internal circuit. A feed port is opened on the top plate of the box, and a feed hopper is installed on the top plate of the box at the feed port. A cover is installed on the feed hopper. Plastic particles roll down the slope of the guide slope into the space between the first heating surface and the second heating surface. The first heating surface and the second heating surface heat and melt the plastic particles. Only when the plastic particles are completely melted into a liquid state will they flow out from the space between the first heating surface and the second heating surface, thus achieving full melting of the plastic particles. Each plastic particle is fully melted, avoiding the mixing of plastic particles in the melt and improving the uniformity of melting.
[0007] Preferably, the fixed base has a lifting groove, and the inner wall of the lifting groove has multiple connecting grooves. A connecting block is assembled in the connecting groove, and a lifting block is installed on the connecting block. The lifting block is fixedly connected to the outer wall of the box. The fixed base has an assembly groove, and multiple springs are installed in the assembly groove. The other end of the spring is fixedly connected to the lifting block. An iron plate is installed on the top side of the lifting block, and a pulse electromagnet is installed above the iron plate. The pulse electromagnet is fixedly installed on the inner wall of the lifting groove. The pulse electromagnet is connected to the control panel through an internal circuit. The box generates high-frequency vibration, which produces a strong impact force, causing the liquid plastic to flow rapidly. At the same time, when melting plastic particles, the box can be vibrated at high frequency at regular intervals, which can promote the rapid flow of liquid plastic between the first heating surface and the second heating surface, and prevent the liquid plastic from accumulating between the first heating surface and the second heating surface. This structure can make the box vibrate at high frequency when discharging liquid plastic, which is beneficial to improving the discharge efficiency of the device.
[0008] The advantages of this utility model are:
[0009] 1. In this invention, plastic granules roll down the inclined surface of the guide plane and fall between the first heating surface and the second heating surface. The first heating surface and the second heating surface heat and melt the plastic granules. Only when the plastic granules are completely melted into a liquid state will they flow out from between the first heating surface and the second heating surface. This achieves full melting of the plastic granules, ensuring that each plastic granule is fully melted. This avoids the presence of plastic granules in the melt and helps to improve the uniformity of the melt.
[0010] 2. This utility model generates high-frequency vibration through the box body. The high-frequency vibration of the box body generates a strong impact force, which causes the liquid plastic to flow rapidly. At the same time, when melting plastic particles, the box body can be vibrated at high frequency at regular intervals, which can promote the rapid flow of liquid plastic between the first heating surface and the second heating surface, and prevent the liquid plastic from accumulating between the first heating surface and the second heating surface. This structure can make the box body vibrate at high frequency when discharging liquid plastic, which is beneficial to improving the discharge efficiency of the device. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0012] Figure 1 This is a first-person perspective 3D structural diagram;
[0013] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the box;
[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the heating plate;
[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the lifting block;
[0016] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the mounting base.
[0017] In the diagram: 1. Leg; 2. Fixing base; 3. Control panel; 4. Housing; 5. Connecting rod; 6. Heating table; 7. Guide slope; 8. First heating surface; 9. First heating plate; 10. Second heating surface; 11. Second heating plate; 12. Feed hopper; 13. Cover; 14. Lifting groove; 15. Connecting groove; 16. Connecting block; 17. Lifting block; 18. Assembly groove; 19. Spring; 20. Iron sheet; 21. Pulse electromagnet; 22. Collection bin; 23. Discharge pipe; 24. Solenoid valve. Detailed Implementation
[0018] 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 scope of protection of the present utility model.
[0019] Please see Figure 1-3 As shown, a plastic pellet melting device includes a stand 1, a fixed base 2 mounted on the stand 1, a control panel 3 mounted on the side wall of the fixed base 2, a housing 4 slidably connected to the fixed base 2, a collection bin 22 fixedly mounted on the inner wall of the housing 4, a discharge port provided on the bottom side of the collection bin 22, multiple sets of connecting rods 5 mounted on the bottom side of the collection bin 22, a heating table 6 mounted on the bottom side of the connecting rods 5, a guide slope 7 provided at the top of the heating table 6, a first heating surface 8 on the side wall of the heating table 6, a first heating plate 9 installed inside the heating table 6, and a second heating surface 8 on the inner wall of the housing 4. On the side wall of the box 4, a second heating plate 11 is installed. The first heating plate 9 and the second heating plate 11 are connected to the control panel 3 through an internal circuit. A discharge pipe 23 is installed on the bottom side of the box 4, and a solenoid valve 24 is installed on the discharge pipe 23. The solenoid valve 24 is connected to the control panel 3 through an internal circuit. A feed inlet is opened on the top plate of the box 4, and a feed hopper 12 is installed on the top plate of the box 4 at the feed inlet. A cover 13 is installed on the feed hopper 12. During operation, the existing melting device has difficulty in melting plastic granules. The plastic granules are heated evenly and thoroughly. Liquid plastic is prone to being mixed with plastic particles, leading to poor melting uniformity and affecting the quality of the melt. Plastic granules are poured from the feed hopper 12 into the collection chamber 22, and then fall from the discharge port onto the guide slope 7 of the heating platform 6. The plastic granules then roll down the slope of the guide slope 7 between the first heating surface 8 and the second heating surface 10. At this point, both sides of the plastic granules will contact the first heating surface 8 and the second heating surface 10. The first heating plate 9 and the second heating plate 11 operate, heating the first heating surface 8 and the second heating surface 10. The first heating surface 8 and the second heating surface 10 heat and melt the plastic granules, causing them to melt into a liquid state. During the melting process, the volume of the plastic granules decreases, and they slide down the slope of the first heating surface 8. Only when the plastic granules are completely melted will they flow out from between the first heating surface 8 and the second heating surface 10, thus achieving thorough melting of the plastic granules. Each plastic granule is fully melted, avoiding the mixing of plastic particles into the melt and improving the uniformity of the melt.
[0020] Please see Figure 4-5As shown, the fixed base 2 has a lifting groove 14, and multiple connecting grooves 15 are formed on the inner wall of the lifting groove 14. A connecting block 16 is assembled in the connecting groove 15, and a lifting block 17 is installed on the connecting block 16. The lifting block 17 is fixedly connected to the outer wall of the housing 4. The fixed base 2 has an assembly groove 18, and multiple springs 19 are installed in the assembly groove 18. The other end of the spring 19 is fixedly connected to the lifting block 17. An iron plate 20 is installed on the top side of the lifting block 17, and a pulse electromagnet 21 is installed above the iron plate 20. The pulse electromagnet 21 is fixed. Installed on the inner wall of the lifting trough 14, the pulse electromagnet 21 is connected to the control panel 3 via an internal circuit. During operation, existing melting devices, after melting plastic granules, struggle to quickly discharge the viscous liquid plastic, resulting in low discharge efficiency. By channeling a sinusoidal current through a wire into the pulse electromagnet 21 via the control panel 3, the electromagnet 21 becomes magnetized. The sinusoidal current switches between positive and negative half-cycles. At the instant of each positive and negative half-cycle switch, the sinusoidal current disappears. The frequency of the switching between the positive and negative half-cycles of the sinusoidal current is very high, so the magnetic field frequency generated by the pulse electromagnet 21 is also very high. The magnetic force generated by the pulse electromagnet 21 is also instantaneous. The instantaneous magnetic force generated by the pulse electromagnet 21 attracts the iron plate 20 to move towards the pulse electromagnet 21. The iron plate 20 drives the lifting block 17 to move vertically upward. The lifting block 17 drives the box 4 to move vertically upward. After that, the magnetic force disappears. Under the tension of the spring 19, the spring 19 pulls the lifting block 17 to move vertically downward. The lifting block 17 drives the box 4 to move vertically downward. Because the switching frequency of the magnetic field generation and disappearance is extremely high, the box 4 generates high-frequency vibration. The high-frequency vibration of the box 4 generates a strong impact force, which makes the liquid plastic flow rapidly. At the same time, when melting plastic particles, the box 4 can be vibrated at high frequency at regular intervals, which can promote the rapid flow of liquid plastic between the first heating surface 8 and the second heating surface 10, and prevent the liquid plastic from accumulating between the first heating surface 8 and the second heating surface 10. This structure can make the box 4 vibrate at high frequency when discharging liquid plastic, which is beneficial to improving the discharge efficiency of the device.
[0021] Working principle: Existing melting devices struggle to uniformly and fully heat plastic granules during the melting process. Plastic granules easily become mixed into the liquid plastic, resulting in poor melt uniformity and affecting the quality of the melt. Plastic granules are poured from the feed hopper 12 into the collection chamber 22, and then fall from the outlet onto the guide slope 7 of the heating platform 6. The granules then roll down the slope 7 between the first heating surface 8 and the second heating surface 10, where both sides of the granules come into contact with them. The first heating plate 9 and the second heating plate 11 operate, heating the first heating surface 8 and the second heating surface 10. Heating is performed on the first heating surface 8 and the second heating surface 10, which melt the plastic particles into a liquid state. During the melting process, the plastic particles decrease in size and slide down the slope of the first heating surface 8. Only when the plastic particles are completely melted into a liquid state will they flow out from between the first heating surface 8 and the second heating surface 10, thus achieving complete melting of the plastic particles. Each plastic particle is fully melted, avoiding the mixing of plastic particles into the melt and improving the uniformity of the melt. Existing melting devices, after melting the plastic particles, find it difficult to quickly discharge the liquid plastic due to its viscosity. This results in low material discharge efficiency. A sinusoidal current is fed into the pulse electromagnet 21 via a wire through the control panel 3, magnetizing the electromagnet. The sinusoidal current switches between positive and negative half-cycles. At the instant of each half-cycle switch, the sinusoidal current disappears. The frequency of these half-cycle switches is very high, resulting in a high-frequency magnetic field generated by the pulse electromagnet 21. The magnetic force generated by the pulse electromagnet 21 is also instantaneous. This instantaneous magnetic force attracts the iron plate 20, causing it to move towards the electromagnet 21. The iron plate 20 then moves the lifting block 17 vertically upwards, which in turn moves the housing 4 vertically upwards. Afterwards, the magnetic force disappears. Under the tension of spring 19, spring 19 pulls lifting block 17 to move vertically downward, and lifting block 17 drives box 4 to move vertically downward. Due to the extremely high switching frequency of the magnetic field's occurrence and disappearance, box 4 generates high-frequency vibration. The high-frequency vibration of box 4 generates a strong impact force, causing the liquid plastic to flow rapidly. At the same time, when melting plastic granules, box 4 can be periodically vibrated at high frequency, which can promote the rapid flow of liquid plastic between the first heating surface 8 and the second heating surface 10, and prevent liquid plastic from accumulating between the first heating surface 8 and the second heating surface 10. This structure can make box 4 vibrate at high frequency when discharging liquid plastic, which is beneficial to improving the discharge efficiency of the device.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A plastic particle melting apparatus characterized by: The device includes a stand (1), on which a fixed base (2) is mounted. A control panel (3) is mounted on the side wall of the fixed base (2). A housing (4) is slidably connected to the fixed base (2). A collection bin (22) is fixedly mounted on the inner wall of the housing (4). A discharge port is provided on the bottom side of the collection bin (22). Multiple sets of connecting rods (5) are installed on the bottom side of the collection bin (22). A heating table (6) is installed on the bottom side of the connecting rods (5). A guide slope (7) is provided at the top of the heating table (6). The side wall is the first heating surface (8), the heating platform (6) is equipped with a first heating plate (9), the inner wall of the box (4) is the second heating surface (10), the side wall of the box (4) is equipped with a second heating plate (11), the first heating plate (9) and the second heating plate (11) are connected to the control panel (3) through an internal circuit, the bottom side of the box (4) is equipped with a discharge pipe (23), the discharge pipe (23) is equipped with a solenoid valve (24), and the solenoid valve (24) is connected to the control panel (3) through an internal circuit.
2. The plastic pellet melting apparatus according to claim 1, wherein: The top plate of the box (4) is provided with a feed inlet, and a feed hopper (12) is installed on the top plate of the box (4) at the feed inlet. A cover (13) is installed on the feed hopper (12).
3. The plastic pellet melting apparatus according to claim 1, wherein: The fixed base (2) has a lifting groove (14) inside, and the inner wall of the lifting groove (14) has multiple connecting grooves (15).
4. The plastic pellet melting apparatus according to claim 3, wherein: A connecting block (16) is assembled in the connecting groove (15), and a lifting block (17) is installed on the connecting block (16). The lifting block (17) is fixedly connected to the outer wall of the box (4).
5. The plastic pellet melting apparatus of claim 1, wherein: The fixed base (2) has an assembly slot (18) inside, and multiple springs (19) are installed in the assembly slot (18). The other end of the spring (19) is fixedly connected to the lifting block (17).
6. The plastic granule melting device according to claim 4, characterized in that: An iron plate (20) is installed on the top side of the lifting block (17), and a pulse electromagnet (21) is installed above the iron plate (20). The pulse electromagnet (21) is fixedly installed on the inner wall of the lifting groove (14), and the pulse electromagnet (21) is connected to the control panel (3) through an internal circuit.