Melting apparatus for processing plastic articles

Abstract

The utility model discloses a kind of melting equipment for plastic product processing, belong to the technical field of plastics production, including outer heating bucket, the outer heating bucket is hingedly connected with sealing top cover, sealing top cover is fixedly connected with storage box, the inside of storage box is connected with high elasticity push capsule, the air inlet of high elasticity push capsule is connected with water-gas dual-purpose pump by hose, after plastic melts, water-gas dual-purpose pump is used to high elasticity push capsule to transport gas or water flow, make it expand and push heat-insulating scraper plate inner heating bucket to press down, melt plastic is continuously pushed into delivery valve and discharged. When most solution is discharged, continue to inject gas or water flow to high elasticity push capsule, increase internal pressure and open one-way cover, by slanting air jet hole, gas stream or water flow is sprayed to container inside bottom wall, residual solution is also pushed into delivery valve, ensure that the discharge of plastic solution is more thorough, reduce the residue of plastic solution in container, improve production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic production technology, specifically to a melting device for processing plastic products. Background Technology

[0002] In the field of plastic product processing, melting equipment is a core process equipment, and its technological evolution is closely linked to the development of the plastics industry. In the traditional processing, plastic raw materials need to go through key steps such as heating and melting, molding, and cooling and solidification. The performance of melting equipment directly determines the melting efficiency of raw materials, the accuracy of temperature control, and the stability of finished product quality.

[0003] In the production of plastic products, plastic raw materials need to be melted before processing. In existing plastic product melting devices, after melting the plastic, the molten plastic adheres to the inner wall of the melting device, which is difficult to clean. This leads to material residue accumulation, which can easily clog the discharge port and affect the next use. In the existing technology, after most materials are melted and discharged, water is generally used to clean the inner wall of the melting device. However, this cleaning method requires a long water rinsing time, which cannot be done continuously. The machine must be stopped for cleaning, and cleaning residue will still occur during use. Furthermore, after the water cools down, the water stains remaining on the inner wall of the device will affect the heating speed and reduce the efficiency. Therefore, a melting device for processing plastic products is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a melting device for processing plastic products, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a melting device for processing plastic products, comprising an outer heating tank, a sealed top cover hinged to the outer heating tank, an inner heating tank fixedly connected inside the outer heating tank, a heating rod fixedly connected inside the inner heating tank, a storage box fixedly connected to the sealed top cover, a highly elastic pushing bladder connected inside the storage box, an air inlet of the highly elastic pushing bladder connected to a water-air dual-purpose pump via a hose, a heat-insulating scraper connected to the bottom of the highly elastic pushing bladder, the heat-insulating scraper being used to expand when the highly elastic pushing bladder is continuously filled with gas by the water-air dual-purpose pump, pushing the heat-insulating scraper down to press down the melted plastic, a heat storage structure connecting the outer heating tank and the inner heating tank, and a conveying valve connected to the outlet of the inner heating tank.

[0006] As a further preferred embodiment of this technical solution: the heat storage structure includes a breathable aerogel, and a storage cavity is formed between the outer heating barrel and the inner heating barrel, with the breathable aerogel filling the interior of the storage cavity.

[0007] As a further preferred embodiment of this technical solution: the inner heating barrel is connected to an air suction pipe, one end of which penetrates the outer wall of the inner heating barrel and the outer heating barrel and is connected to an air pump, the air outlet of the air pump is connected to a gas delivery pipe, and the end of the gas delivery pipe away from the air pump penetrates the outer wall of the outer heating barrel and is spirally dispersed inside the breathable aerogel.

[0008] As a further preferred embodiment of this technical solution: the heat-insulating scraper has an inclined air jet hole on its exterior, and a one-way cover is hinged to the exterior of the inclined air jet hole by a torsion spring, with the air outlet of the inclined air jet hole tilted towards the inner wall of the inner heating barrel.

[0009] As a further preferred embodiment of this technical solution: a heat-insulating plug is fixedly connected to the top of the heat-insulating scraper, and the heat-insulating plug surrounds the highly elastic pushing bladder.

[0010] As a further preferred embodiment of this technical solution: the inner wall of the inner heating barrel is provided with a plurality of enclosing heat insulation plugs, and a plurality of universal balls are fixedly connected to the outside of the heat insulation scraper, and the universal balls are slidably connected to the inside of the enclosing heat insulation plugs.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this invention, after the plastic melts, a water-air dual-purpose pump delivers gas or water to the highly elastic push-blade, causing it to expand and push the heating barrel inside the heat-insulating scraper downwards, continuously pushing the molten plastic into the conveying valve for discharge. After most of the solution has been discharged, gas or water continues to be injected into the highly elastic push-blade, increasing the internal pressure to open the one-way cover. Air or water is then sprayed into the bottom wall of the container through an inclined jet nozzle, pushing the remaining solution into the conveying valve as well. This ensures more thorough discharge of the plastic solution, reduces residual plastic solution in the container, and improves production efficiency and product quality.

[0013] 2. In this invention, the inner heating barrel and the surrounding heat-insulating plug of the heat-insulating scraper are made of heat-insulating material, and the surrounding heat-insulating plug surrounds the highly elastic pushing bladder. When the highly elastic pushing bladder rebounds, it can effectively reduce heat damage to it and the transfer of heat to the outside. At the same time, the breathable aerogel in the heat storage structure fills the storage cavity between the outer heating barrel and the container. The air pump, together with the suction pipe and the gas delivery pipe, evenly delivers the hot gas generated in the container to the breathable aerogel. The spiral dispersion outlet of the gas delivery pipe ensures the uniformity of the distribution of hot gas, thereby effectively maintaining the temperature inside the container, improving heating efficiency, and reducing energy consumption. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a melting device for processing plastic products according to this utility model;

[0015] Figure 2 This is a first cross-sectional structural diagram of a melting device for processing plastic products according to the present invention;

[0016] Figure 3 This is a second cross-sectional structural diagram of a melting device for processing plastic products according to the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of multiple universal balls in a melting device for processing plastic products according to this utility model;

[0018] Figure 5 This utility model relates to a melting device for processing plastic products. Figure 4 A magnified structural diagram of part A in the middle.

[0019] In the diagram: 1. External heating barrel; 2. Sealed top cover; 3. Storage box; 4. Water-air dual-purpose pump; 5. High-elasticity propulsion bladder; 6. Heat-insulating scraper; 7. Internal heating barrel; 8. Delivery valve; 9. Inclined jet nozzle; 10. One-way cover; 11. Omnidirectional ball; 12. Enclosing heat-insulating plug; 13. Breathable aerogel; 14. Suction tube; 15. Air pump; 16. Gas delivery tube; 17. Heating rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Example

[0022] Please see Figures 1-5 This utility model provides a technical solution: a melting device for processing plastic products, including an outer heating tank 1, a sealed top cover 2 hinged to the outer heating tank 1, an inner heating tank 7 fixedly connected inside the outer heating tank 1, a heating rod 17 fixedly connected inside the inner heating tank 7, a storage box 3 fixedly connected to the sealed top cover 2, a high-elasticity pushing bladder 5 connected inside the storage box 3, a water-air dual-purpose pump 4 connected to the air inlet of the high-elasticity pushing bladder 5 via a hose, a heat-insulating scraper 6 connected to the bottom of the high-elasticity pushing bladder 5, the heat-insulating scraper 6 is used to expand when the high-elasticity pushing bladder 5 is continuously filled with gas by the water-air dual-purpose pump 4, pushing the heat-insulating scraper 6 down to press down the melted plastic, a heat storage structure is connected between the outer heating tank 1 and the inner heating tank 7, and a conveying valve 8 is connected to the discharge port of the inner heating tank 7.

[0023] In this embodiment, specifically: during use, the operator can open the sealing top cover 2 and place the plastic granules or products to be melted into the inner heating tank 7. After placement, the sealing top cover 2 is sealed onto the outer heating tank 1. After connection, the heating rod 17 is activated to heat the inside of the inner heating tank 7. After the plastic melts, the operator can activate the water-gas dual-purpose pump 4 to continuously deliver gas or water flow through the pipeline into the high-elasticity push-burden 5. After the gas or water flow enters the high-elasticity push-burden 5, the gas or water flow will cause the high-elasticity push-burden 5 to... The moving bladder 5 expands, and under the expansion of the high elasticity pushing bladder 5, it will continuously push the heat insulation scraper 6 to move downward. As the heat insulation scraper 6 moves downward, it will push the molten plastic inside the inner heating tank 7 to continuously enter the delivery valve 8 for the discharge of plastic solution. After the plastic solution is discharged, the water-air dual-purpose pump 4 is turned on again to discharge the gas or solution inside the high elasticity pushing bladder 5. When the filling inside the high elasticity pushing bladder 5 is discharged, the high elasticity pushing bladder 5 will rebound, driving the heat insulation scraper 6 to move back to the original position.

[0024] like Figures 2-3 As shown, a heat insulation plug 12 is fixedly connected to the top of the heat insulation scraper 6, and the heat insulation plug 12 surrounds the highly elastic push bladder 5.

[0025] In this embodiment, specifically: when the high-elasticity push bladder 5 rebounds, it will retract into the storage box 3. Both the heat-insulating scraper 6 and the surrounding heat-insulating plug 12 are made of heat-insulating material to reduce the damage of heat to the high-elasticity push bladder 5 during the heating process. In use, the surrounding heat-insulating plug 12 will be locked at the outlet position of the high-elasticity push bladder 5, thereby further reducing the phenomenon of heat being transferred to the outside of the high-elasticity push bladder 5.

[0026] like Figures 2-3 As shown, the heat storage structure includes a breathable aerogel 13, and a storage cavity is formed between the outer heating barrel 1 and the inner heating barrel 7. The breathable aerogel 13 fills the inside of the storage cavity. The inside of the inner heating barrel 7 is connected to an air intake pipe 14. One end of the air intake pipe 14 penetrates the outer wall of the inner heating barrel 7 and the outer heating barrel 1 and is connected to an air pump 15. The air outlet of the air pump 15 is connected to a gas delivery pipe 16. The end of the gas delivery pipe 16 away from the air pump 15 penetrates the outer wall of the outer heating barrel 1 and is spirally dispersed inside the breathable aerogel 13.

[0027] In this embodiment, specifically: during use, after the heating rod 17 melts the plastic, it generates a certain amount of gas inside the inner heating tank 7. By turning on the air pump 15 and cooperating with the suction pipe 14, the gas can be drawn into the gas delivery pipe 16 and delivered to the breathable aerogel 13 through the gas delivery pipe 16. This allows the breathable aerogel 13 to uniformly receive the hot gas, ensuring the heat preservation performance of the inner heating tank 7. Furthermore, the spiral-shaped dispersion outlet of the gas delivery pipe 16 can uniformly deliver the gas into the breathable aerogel 13.

[0028] like Figures 2-5 As shown, the heat insulation scraper 6 has an inclined jet hole 9 on its outside. The inclined jet hole 9 is hinged to a one-way cover 10 by a torsion spring. The outlet of the inclined jet hole 9 is inclined towards the inner wall of the inner heating barrel 7.

[0029] In this embodiment, specifically: when gas is continuously introduced into the high-elasticity push bladder 5, and the heat insulation scraper 6 has pushed most of the plastic solution into the delivery valve 8, some plastic solution will remain on the bottom wall of the inner heating tank 7. At this time, the continuous injection of gas or water into the high-elasticity push bladder 5 can increase the internal pressure of the high-elasticity push bladder 5. When the pressure reaches a certain level, it will push open the one-way cover 10, thereby continuously spraying air or water into the bottom wall of the inner heating tank 7, pushing the remaining solution on the bottom wall of the inner heating tank 7 into the delivery valve 8.

[0030] like Figures 4-5 As shown, the inner wall of the inner heating barrel 7 is provided with multiple enclosing heat insulation plugs 12, and multiple universal balls 11 are fixedly connected to the outside of the heat insulation scraper 6. The universal balls 11 are slidably connected to the inside of the enclosing heat insulation plugs 12.

[0031] In this embodiment, specifically: during use, multiple universal balls 11 slide inside the heat insulation plug 12 to guide the heat insulation scraper 6, and there is an elastic scraper on the outer wall surface of the heat insulation scraper 6, above the universal balls 11, to scrape off the plastic solution remaining inside the heat insulation plug 12.

[0032] Working principle: The operator opens the sealed top cover 2 and puts the plastic granules or products to be melted into the inner heating tank 7, which is fixedly connected to the outer heating tank 1. Then, the sealed top cover 2 is sealed on the outer heating tank 1. Then, the heating rod 17 is turned on to heat the inside of the inner heating tank 7, so that the plastic gradually melts.

[0033] After the plastic melts, the staff starts the water-gas dual-purpose pump 4, which continuously delivers gas or water to the highly elastic push capsule 5 in the storage box 3 through the pipeline. The gas or water causes the highly elastic push capsule 5 to expand, pushing the heat-insulating scraper 6 connected to its bottom to move downward, thereby continuously pushing the melted plastic in the heating barrel 7 inside the container into the conveying valve 8 connected to the discharge port for discharge.

[0034] After the plastic solution is discharged, the water-air dual-purpose pump 4 is turned on again to discharge the gas or solution inside the high-elasticity push capsule 5. The high-elasticity push capsule 5 rebounds, driving the heat insulation scraper 6 back to its original position. During this process, the heat insulation plug 12 fixedly connected to the top of the heat insulation scraper 6 surrounds the high-elasticity push capsule 5. Both the heat insulation scraper 6 and the heat insulation plug 12 are made of heat insulation material. When it rebounds, the high-elasticity push capsule 5 retracts into the storage box 3. The heat insulation plug 12 is engaged at the outlet position of the high-elasticity push capsule 5 to reduce the damage of heat to the high-elasticity push capsule 5 and the transfer of heat to its outside.

[0035] When the heating rod 17 melts the plastic, gas will be generated inside the heating barrel 7 of the container. The air pump 15 is turned on, and the gas is drawn into the gas delivery pipe 16 through the air suction pipe 14 which is connected to the inside of the heating barrel 7 of the container. The gas is then delivered to the breathable aerogel 13 that fills the storage cavity between the outer heating barrel 1 and the inner heating barrel 7 of the container. The gas delivery pipe 16 has a spiral-shaped dispersion outlet, so that the hot gas enters the breathable aerogel 13 evenly, ensuring the heat preservation performance of the inner heating barrel 7 of the container.

[0036] When the high-elasticity pusher bladder 5 continuously receives air or water, and the heat-insulating scraper 6 pushes most of the plastic solution into the delivery valve 8, some solution will remain on the bottom wall of the heating tank 7 inside the container. At this time, the continuous injection of gas or water increases the internal pressure of the high-elasticity pusher bladder 5, which opens the inclined jet hole 9 on the outside of the heat-insulating scraper 6 and the one-way cover 10 hinged by a torsion spring. This continuously sprays air or water into the bottom wall of the heating tank 7 inside the container, pushing the remaining solution into the delivery valve 8 and reducing the residue of the solution.

[0037] 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 melting device for processing plastic products, comprising an external heating tank (1), characterized in that: A sealing top cover (2) is hinged to the outer heating barrel (1). An inner heating barrel (7) is fixedly connected inside the outer heating barrel (1). A heating rod (17) is fixedly connected inside the inner heating barrel (7). A storage box (3) is fixedly connected to the sealing top cover (2). A high-elasticity pushing bladder (5) is connected inside the storage box (3). The air inlet of the high-elasticity pushing bladder (5) is connected to a water-air dual-purpose pump (4) through a hose. A heat-insulating scraper (6) is connected to the bottom of the high-elasticity pushing bladder (5). The heat-insulating scraper (6) is used to expand when the high-elasticity pushing bladder (5) is continuously filled with gas by the water-air dual-purpose pump (4), pushing the heat-insulating scraper (6) down to press down the melted plastic. A heat storage structure is connected between the outer heating barrel (1) and the inner heating barrel (7). A conveying valve (8) is connected to the outlet of the inner heating barrel (7).

2. The melting equipment for processing plastic products according to claim 1, characterized in that: The heat storage structure includes a breathable aerogel (13), and a storage cavity is formed between the outer heating barrel (1) and the inner heating barrel (7), with the breathable aerogel (13) filling the inside of the storage cavity.

3. The melting equipment for processing plastic products according to claim 2, characterized in that: The inner heating barrel (7) is connected to an air suction pipe (14). One end of the air suction pipe (14) passes through the outer wall of the inner heating barrel (7) and the outer heating barrel (1) and is connected to an air pump (15). The air outlet of the air pump (15) is connected to a gas delivery pipe (16). The end of the gas delivery pipe (16) away from the air pump (15) passes through the outer wall of the outer heating barrel (1) and is spirally dispersed inside the breathable aerogel (13).

4. The melting equipment for processing plastic products according to claim 1, characterized in that: The heat insulation scraper (6) has an inclined air jet hole (9) on its outside. The inclined air jet hole (9) is hinged to a one-way cover (10) by a torsion spring. The air outlet of the inclined air jet hole (9) is inclined toward the inner wall of the inner heating barrel (7).

5. The melting equipment for processing plastic products according to claim 1, characterized in that: The top of the heat-insulating scraper (6) is fixedly connected to an enclosing heat-insulating plug (12), which surrounds the highly elastic push bladder (5).

6. The melting equipment for processing plastic products according to claim 1, characterized in that: The inner wall of the inner heating barrel (7) is provided with a plurality of enclosing heat insulation plugs (12), and a plurality of universal balls (11) are fixedly connected to the outside of the heat insulation scraper (6), and the universal balls (11) are slidably connected to the inside of the enclosing heat insulation plugs (12).

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