Raw material melting equipment for plastic product production

Abstract

The utility model discloses raw material melting equipment for plastic product production, which comprises a support frame, a filter box is arranged on one side of the support frame, a melting outer tank is arranged above the support frame and the filter box, a feed hopper is arranged at the top of the melting outer tank, a crushing roller is rotatably arranged in the feed hopper, and a feeding hopper is arranged at the top of the crushing roller. The output end of the first motor is connected with a large gear, one side of the large gear is connected with a small gear in a meshed mode, a discharging pipe is arranged at the bottom of the melting outer tank, a filter screen and a guide plate are arranged in the filter box, and a vibration motor is arranged at the center of the bottom of the filter screen. According to the utility model, through the arrangement of the crushing rollers, the two crushing rollers are arranged in the feed hopper and work in a relative movement relationship, so that raw materials can be more effectively crushed into uniform particles before entering the melting box, and the raw material particles with uniform sizes are beneficial to realizing more uniform heating, thereby being beneficial to improving the subsequent heating and melting efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of melting raw materials for plastic products, in particular to a raw material melting device for producing plastic products. Background Art

[0002] Plastic products are made of plastic, which are high molecular compounds formed by polyaddition or polycondensation reactions, commonly known as plastics or resins. Plastic products are widely used in our daily lives and their types are also very diverse. Plastic is solid in its natural state and its fluidity is relatively poor. Therefore, heating the plastic raw materials to a molten state through melting equipment can significantly reduce its viscosity, making it easier to perform subsequent processing operations such as injection molding and extrusion molding. The plastic in the molten state can better fill the mold to form a uniform, smooth, and well-defined product, thereby improving the quality and appearance of the product.

[0003] When existing plastic products are melted by melting equipment, there are raw materials with larger particles in the plastic products. Due to the different sizes of the raw materials, the smaller particles may have melted during melting, while the larger particles have not yet completely melted. In addition, the existing melting equipment does not have a filtering function after melting the raw materials, and there may be incompletely melted raw materials. Then, the incompletely melted raw material particles will directly enter the subsequent processing links, such as injection molding, extrusion, etc., which will not only affect the appearance and quality of the product, but may also cause damage to the production equipment.

[0004] For example, the publication number CN217169277U discloses a plastic melting device for processing plastic products. The plastic in this patent is directly poured into the melting box through a feed pipe, but the uncrushed plastic has different sizes, resulting in uneven heating, affecting the melting effect and subsequent processing quality. In addition, the plastic in this patent is directly discharged through a discharge pipe after melting, and lacks a filtering link. This means that incompletely melted plastic particles may be discharged together with the molten plastic and enter the subsequent processing flow. These particles will directly affect the quality and appearance of subsequent plastic products.

[0005] Therefore, it is necessary to invent a raw material melting device for producing plastic products to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a raw material melting device for producing plastic products, so as to solve the problem that the technology does not have the raw material crushing function and the filtering function.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material melting equipment for the production of plastic products, comprising a support frame, a filter box and a melting outer tank, a filter box is provided on one side of the support frame, a melting outer tank is provided above the support frame and the filter box, a feed hopper is provided on the top of the melting outer tank, a crushing roller is provided for rotation inside the feed hopper, a No. 1 motor is provided on one side of the outside of the feed hopper, the output end of the No. 1 motor is connected to a large gear, and a small gear is meshed with one side of the large gear, a discharge pipe is provided at the bottom of the melting outer tank, a filter screen and a material guide plate are provided inside the filter box, and a vibration motor is provided at the bottom center of the filter screen.

[0008] Preferably, there are two crushing rollers, one of which is connected to the large gear and the other is connected to the small gear. By setting two crushing rollers and connecting them to the large gear and the small gear respectively, a double crushing effect of the raw materials can be achieved, thereby improving the crushing efficiency and fineness.

[0009] Preferably, an inner tank is provided inside the outer melting tank, and there is a certain space between the inner wall of the outer melting tank and the outer wall of the inner tank, and an electric heating tube is provided inside the space, and the electric heating tube fits tightly to the outer wall of the inner tank. The electric heating tube can quickly and evenly transfer heat to the raw materials in the inner tank, and the double-layer tank design improves the thermal insulation performance of the equipment and reduces heat loss.

[0010] Preferably, a No. 2 motor is provided on one side of the outside of the melting outer tank, the output end of the No. 2 motor is connected to the No. 1 gear, one side of the No. 1 gear is meshed with the No. 2 gear, and both the No. 1 and No. 2 gears are connected to agitators. The No. 1 gear is driven by the No. 2 motor, and the No. 1 gear drives the No. 2 gear to rotate, thereby realizing synchronous stirring of the two agitators.

[0011] Preferably, there are two agitators, which are arranged inside the inner tank. The blades on the two agitators are designed to be staggered with each other. Setting two agitators can cover a wider stirring area and reduce stirring blind spots.

[0012] Preferably, the discharge pipe passes through the top of the filter box and extends into the interior thereof. A switch valve is provided on the discharge pipe. The design of the discharge pipe enables the melted material to be smoothly discharged from the inner tank into the filter box for subsequent filtration and guidance.

[0013] Preferably, the filter screen and the guide plate are designed to be inclined, and the filter screen is arranged above the guide plate. The filter screen can filter out impurities and incompletely melted particles in the melted material, thereby improving the purity and quality of the product.

[0014] Preferably, the filter screen and the guide plate are designed with extensions that pass through the side walls of the filter box, and the side walls of the filter box are respectively provided with through slots at positions corresponding to these extensions. The design of the through slots ensures the smoothness and stability of the material during the transmission process.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The two crushing rollers are set inside the feed hopper and work in a relative motion relationship, so that the raw materials can be more effectively crushed into uniform particles before entering the melting box. The uniform size of the raw material particles is conducive to more uniform heating, which helps to improve the efficiency of subsequent heating and melting;

[0017] 2. Through the setting of the filter and the vibration motor, the melted raw materials enter the filter box and can be filtered through the filter. The unmelted particles are retained above the filter. The vibration motor enables the filter to vibrate periodically, accelerating the filtration of the raw materials. The melted raw materials can pass through the filter and can be smoothly discharged along the guide plate, ensuring that the raw materials entering the subsequent processing links are pure and uniform, which helps to improve the quality and stability of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the feed hopper of the present utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the melting outer tank and the inner tank of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the guide plate of the utility model;

[0022] Figure 5 This is a schematic diagram of the sliding three-dimensional structure of the collection box of the present utility model.

[0023] Description of reference numerals:

[0024] 1. Support frame; 2. Filter box; 3. Melting outer tank; 4. Feed hopper; 5. Motor No. 1; 6. Large gear; 7. Small gear; 8. Crushing roller; 9. Inner tank; 10. Electric heating tube; 11. Motor No. 2; 12. Gear No. 1; 13. Gear No. 2; 14. Agitator; 15. Feeding pipe; 16. Filter screen; 17. Vibration motor; 18. Guide plate. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides Figure 1-5 The shown raw material melting equipment for the production of plastic products includes a support frame 1, a filter box 2 and a melting outer tank 3. The filter box 2 is provided on one side of the support frame 1, and the melting outer tank 3 is provided above the support frame 1 and the filter box 2. A feed hopper 4 is provided on the top of the melting outer tank 3. A crushing roller 8 is provided for rotation inside the feed hopper 4. A No. 1 motor 5 is provided on one side of the outside of the feed hopper 4. The output end of the No. 1 motor 5 is connected to a large gear 6, and a small gear 7 is meshed with one side of the large gear 6. A discharge pipe 15 is provided at the bottom of the melting outer tank 3, and a filter screen 16 and a material guide plate 18 are provided inside the filter box 2. A vibration motor 17 is provided at the bottom center of the filter screen 16.

[0027] There are two crushing rollers 8, one of which is connected to the large gear 6, and the other is connected to the small gear 7. An inner tank 9 is provided inside the melting outer tank 3. There is a certain space between the inner wall of the melting outer tank 3 and the outer wall of the inner tank 9, and an electric heating tube 10 is provided inside the space. The electric heating tube 10 fits tightly against the outer wall of the inner tank 9. A No. 2 motor 11 is provided on one side of the outside of the melting outer tank 3. The output end of the No. 2 motor 11 is connected to the No. 1 gear 12, and one side of the No. 1 gear 12 is meshed with the No. 2 gear 13. A stirrer 14 is connected to both the No. 1 gear 12 and the No. 2 gear 13. There are two stirrers 14, and the two stirrers 14 are provided inside the inner tank 9. The blades on the two stirrers 14 are staggered.

[0028] The raw materials enter through the feed hopper 4, and the two crushing rollers 8 rotate in opposite or same directions under the drive of the large gear 6 and the small gear 7, so as to efficiently crush the raw materials and ensure that the raw materials reach the required fineness before entering the melting stage. The crushed raw materials are fed into the inner tank 9, and the electric heating tube 10 generates heat to evenly heat the raw materials in the inner tank 9. In addition, the two agitators 14 are rotated in the inner tank 9, and the blades on the agitators 14 are staggered to achieve all-round stirring, ensuring that the raw materials are evenly heated and fully mixed.

[0029] The feed pipe 15 passes through the top of the filter box 2 and extends into the interior thereof. A switch valve is provided on the feed pipe 15. The filter screen 16 and the guide plate 18 are designed to be inclined. The filter screen 16 is arranged above the guide plate 18. The filter screen 16 and the guide plate 18 are both designed with extensions that pass through the side walls of the filter box 2. Through grooves are respectively provided on the side walls of the filter box 2 at positions corresponding to these extensions.

[0030] After the raw materials are completely melted in the inner tank 9, the melted materials enter the filter box 2 through the discharge pipe 15 and the filter screen 16 is provided to filter the melted raw materials to remove the particles that are not completely melted. The completely melted raw materials flow to the designated position along the inclined guide plate 18, thereby improving the purity and quality of subsequent plastic products.

[0031] Working principle of this utility model:

[0032] Refer to the instruction manual Figure 1-3 When using the utility model, the raw materials to be processed are first put into the inner tank 9 through the feed hopper 4. When the raw materials enter the feed hopper 4, the No. 1 motor 5 is started to drive the large gear 6 and the small gear 7 to rotate, thereby driving the two crushing rollers 8 to crush the raw materials. The crushed raw materials fall into the inner tank 9, which is tightly surrounded by the electric heating tube 10. The electric heating tube 10 generates heat after being energized, and transfers the heat to the raw materials in the inner tank 9 through heat conduction, causing them to gradually melt. During the melting process, the No. 2 motor 11 drives the No. 1 gear 12 and the No. 2 gear 13 to rotate, thereby driving the two agitators 14 to rotate in the inner tank 9. The blades on the agitators 14 are staggered to achieve all-round stirring of the raw materials, prevent the raw materials from agglomerating or locally overheating, and ensure that the raw materials are evenly heated and fully mixed.

[0033] Refer to the instruction manual Figure 4-5 When using the present invention, the melted material flows into the filter box 2 through the discharge pipe 15, and is first filtered by the filter screen 16 to remove the incompletely melted particles. The vibration motor 17 at the bottom of the filter screen 16 can generate vibration to help improve its filtering efficiency and prevent clogging. As a result, the incompletely melted particles are discharged along the filter screen 16, and the melted raw materials after filtration fall on the guide plate 18 and flow along the inclined guide plate 18 to a designated location for collection or further processing.

Claims

1. A raw material melting device for producing plastic products, comprising a support frame (1), a filter box (2) and a melting outer tank (3), characterized in that: A filter box (2) is provided on one side of the support frame (1), a melting outer tank (3) is provided above the support frame (1) and the filter box (2), a feed hopper (4) is provided on the top of the melting outer tank (3), a crushing roller (8) is provided inside the feed hopper (4) for rotation, a No. 1 motor (5) is provided on one side of the outside of the feed hopper (4), an output end of the No. 1 motor (5) is connected to a large gear (6), a small gear (7) is meshed with one side of the large gear (6), a feed pipe (15) is provided at the bottom of the melting outer tank (3), a filter screen (16) and a guide plate (18) are provided inside the filter box (2), and a vibration motor (17) is provided at the center of the bottom of the filter screen (16).

2. The raw material melting equipment for producing plastic products according to claim 1, characterized in that: Two crushing rollers (8) are provided, one of which is connected to the large gear (6) and the other is connected to the small gear (7).

3. The raw material melting equipment for producing plastic products according to claim 1, characterized in that: An inner tank (9) is provided inside the melting outer tank (3), a certain space exists between the inner wall of the melting outer tank (3) and the outer wall of the inner tank (9), and an electric heating pipe (10) is provided inside the space, and the electric heating pipe (10) is tightly fitted to the outer wall of the inner tank (9).

4. The raw material melting equipment for producing plastic products according to claim 3, characterized in that: A second motor (11) is provided on one side of the outer melting tank (3), an output end of the second motor (11) is connected to a first gear (12), one side of the first gear (12) is meshedly connected to a second gear (13), and both the first gear (12) and the second gear (13) are connected to a stirrer (14).

5. The raw material melting equipment for producing plastic products according to claim 4, characterized in that: Two agitators (14) are provided, and the two agitators (14) are arranged inside the inner tank (9), and the blades on the two agitators (14) are designed to be staggered with each other.

6. The raw material melting equipment for producing plastic products according to claim 1, characterized in that: The feed pipe (15) passes through the top of the filter box (2) and extends into the interior thereof. A switch valve is provided on the feed pipe (15).

7. The raw material melting equipment for producing plastic products according to claim 1, characterized in that: The filter screen (16) and the guide plate (18) are designed to be in an inclined state, and the filter screen (16) is arranged above the guide plate (18).

8. The raw material melting equipment for producing plastic products according to claim 7, characterized in that: The filter screen (16) and the guide plate (18) are both designed with extensions that pass through the side wall of the filter box (2), and the side wall of the filter box (2) is provided with through slots at positions corresponding to these extensions.

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