Plastic melting device for plastic production
By using a combination of L-shaped heating rods and annular heating plates in a plastic melting device, along with spiral blades and crushing components, the problem of slow melting speed caused by uneven heating is solved, achieving rapid and uniform heating and efficient melting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHINDEN PRECISION MASCH(CHONGQING) INC
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-02
AI Technical Summary
Existing plastic melting equipment suffers from uneven heating, resulting in slow plastic melting speed, which affects efficiency and increases costs.
Multiple L-shaped heating rods and annular heating plates are combined with spiral blades. The heating rods are driven by a motor to rotate inside the heating shell for stirring. Combined with the crushing component, the plastic is rapidly heated and crushed to ensure uniform heating.
It increases the melting speed of plastics, solves the problem of uneven heating, improves melting efficiency, and reduces costs.
Smart Images
Figure CN224310971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic melting technology, and more specifically, to a plastic melting device for plastic production. Background Technology
[0002] Plastics, as a fundamental material in modern industry, are widely used in packaging, building materials, automobiles, electronics, and other fields. In the plastics production process, melt plasticizing is one of the key steps. Its core is to transform solid plastic particles into a uniform molten fluid through heating and shearing, so that subsequent processing such as extrusion, injection molding, and blown film can proceed.
[0003] Currently, there are shortcomings in plastic melting equipment. Existing melting equipment is relatively slow in heating. During the melting process of plastic, uneven heating may cause some areas to fail to reach a certain temperature, resulting in a slow melting rate. This affects the efficiency of plastic melting and increases costs. Therefore, a plastic melting equipment for plastic production is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a plastic melting device for plastic production, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides a plastic melting device for plastic production, including a receiving plate. Supporting feet are fixedly connected to the bottom side of the receiving plate near its four corners. An installation hole is formed at the center of the top side of the receiving plate, and a heating shell is fixedly connected within the installation hole. A rotating hole is provided at the center of the top side of the heating shell. A melting and stirring assembly is disposed within the heating shell. The melting and stirring assembly includes a first rotating shaft. The outer side of the first rotating shaft is rotatably connected to the rotating hole near its top. Multiple L-shaped heating rods are fixedly connected to the outer side of the first rotating shaft, and these L-shaped heating rods are arranged in an array around the center point of the first rotating shaft. Spiral blades are fixedly connected to the outer side of the first rotating shaft, and these spiral blades are located at the bottom of the L-shaped heating rods. An annular heating plate is fixedly connected to the outer side of the heating shell. The heating shell is rapidly heated through the multiple L-shaped heating rods and the annular heating plate.
[0006] As a further improvement to this technical solution, two scraper blades are fixedly connected to the outer side of the first rotating shaft near the top end, and the two scraper blades are symmetrically arranged. Both scraper blades are in contact with the inner wall of the heating shell, and the plastic residue on the inner wall of the heating shell is scraped off by the two scraper blades.
[0007] As a further improvement to this technical solution, a first drive motor is fixedly installed at the center of the top side of the heating shell. The output shaft end of the first drive motor is fixedly connected to the top end of the first rotating shaft, and the first drive motor drives the first rotating shaft to rotate in the heating shell.
[0008] As a further improvement to this technical solution, a crushing assembly is provided near the center of the heating shell. The crushing assembly includes a feeding hopper, which is fixedly connected to the top side of the heating shell near the center and is connected to the interior of the receiving plate. Two second rotating shafts are provided inside the feeding hopper and are symmetrically arranged. Both ends of the two second rotating shafts are rotatably connected to the feeding hopper. Crushing cylinders are fixedly connected to the outer sides of the two second rotating shafts. One end of each of the two second rotating shafts is fixedly connected to a drive gear, and the two drive gears mesh with each other and are located outside the feeding hopper.
[0009] As a further improvement to this technical solution, a second drive motor is fixedly installed on the outside of the feed hopper, and the output shaft end of the second drive motor is fixedly connected to the other end of one of the second rotating shafts. The second drive motor drives one of the second rotating shafts to rotate, and under the action of the two second rotating shafts, the two second rotating shafts rotate in opposite directions, and the two crushing cylinders rotate in opposite directions.
[0010] As a further improvement to this technical solution, a discharge pipe is fixedly connected to the bottom side of the heating shell, and the discharge pipe is connected to the interior of the heating shell. A solenoid valve is fixedly installed at the middle position on the outer side of the discharge pipe.
[0011] As a further improvement to this technical solution, a control box is fixedly installed on the top side of the receiving plate near one corner. The control box is used to control the melting device.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] In plastic melting devices used in plastic production, uneven heating within the device leads to slow plastic melting. A first drive motor drives multiple L-shaped heating rods to rotate within the heating shell, simultaneously stirring the plastic within the shell and preventing it from accumulating in one spot, which would affect the melting speed. Meanwhile, the annular heating plate heats the shell rapidly, resolving the uneven heating issue and ultimately increasing the plastic melting rate. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a cross-sectional structural schematic diagram of the utility model;
[0016] Figure 3 This is a schematic diagram of the melting and stirring assembly structure of the utility model.
[0017] The meanings of the labels in the diagram are as follows:
[0018] 1. Receiving plate; 2. Heating shell; 3. Melting and stirring assembly; 31. First rotating shaft; 32. L-shaped heating rod; 33. Spiral blade; 34. Scraper; 35. Annular heating plate; 36. First drive motor; 4. Crushing assembly; 41. Feed hopper; 42. Second rotating shaft; 43. Crushing cylinder; 44. Drive gear; 45. Second drive motor; 5. Discharge pipe; 6. Solenoid valve; 7. Control box. Detailed Implementation
[0019] 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 protection scope of the present utility model.
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] Example 1
[0022] Please see Figures 1-2As shown, this embodiment provides a plastic melting device for plastic production, including a receiving plate 1. Support feet are fixedly connected to the bottom side of the receiving plate 1 near the four corners. These support feet support the melting device and prevent movement during operation. A mounting hole is provided at the center of the top side of the receiving plate 1, and a heating shell 2 is fixedly connected within the mounting hole. The mounting hole limits and fixes the heating shell 2. A rotating hole is provided at the center of the top side of the heating shell 2, and a melting and stirring assembly 3 is provided inside the heating shell 2. The melting and stirring assembly 3 can uniformly stir the contents of the heating shell 2. To ensure uniform heating and prevent uneven heating within the melting device, the melting and stirring assembly 3 includes a first rotating shaft 31. The outer side of the first rotating shaft 31, near its top, is rotatably connected to a rotating hole. This rotating hole limits the movement of the first rotating shaft 31 and ensures its stable rotation. Multiple L-shaped heating rods 32 are fixedly connected to the outer side of the first rotating shaft 31, and these rods are arranged in an array around the center point of the first rotating shaft 31. The multiple L-shaped heating rods 32 heat and stir the plastic inside the heating shell 2. A spiral blade 33 is fixedly connected to the outer side of the first rotating shaft 31, and the spiral blade 33 is located at the bottom of the L-shaped heating rod 32. The spiral blade 33 can discharge the plastic in the heating shell 2. An annular heating plate 35 is fixedly connected to the outer side of the heating shell 2. The heating shell 2 is rapidly heated by multiple L-shaped heating rods 32 and the annular heating plate 35. Two scrapers 34 are fixedly connected to the outer side of the first rotating shaft 31 near the top. The two scrapers 34 are symmetrically arranged and both scrapers 34 are in contact with the inner wall of the heating shell 2. The two scrapers 34 scrape off the plastic residue on the inner wall of the heating shell 2 to prevent the plastic from sticking to the inner wall of the heating shell 2 and affecting the melting efficiency. A first drive motor 36 is fixedly installed at the center of the top side of the heating shell 2. The output shaft end of the first drive motor 36 is fixedly connected to the top of the first rotating shaft 31. The first drive motor 36 drives the first rotating shaft 31 to rotate in the heating shell 2, thereby achieving the effect of stirring inside the heating shell 2.
[0023] Please see Figures 1-3As shown, a crushing assembly 4 is located near the center of the heating shell 2. This crushing assembly 4 crushes the plastic, thereby increasing the melting speed. The crushing assembly 4 includes a feed hopper 41, which is fixedly connected to the top side of the heating shell 2 near the center and communicates with the interior of the receiving plate 1. The feed hopper 41 facilitates the injection of plastic. Two second rotating shafts 42 are symmetrically arranged inside the feed hopper 41, with both ends rotatably connected to the feed hopper 41. Crushing cylinders 43 are fixedly connected to the outer sides of each of the two second rotating shafts 42. Drive gears 44 are fixedly connected to one end of each of the two second rotating shafts 42. The feeding hopper 41 has four meshing gears and two drive gears 44 located outside the feeding hopper 41. A second drive motor 45 is fixedly installed on the outside of the feeding hopper 41, and the output shaft end of the second drive motor 45 is fixedly connected to the other end of one of the second rotating shafts 42. The second drive motor 45 drives one of the second rotating shafts 42 to rotate. At the same time, under the action of the two second rotating shafts 42, the two second rotating shafts 42 rotate towards each other, and the two crushing cylinders 43 rotate towards each other, thereby achieving the effect of crushing plastic.
[0024] Please see Figures 1-3 As shown, a discharge pipe 5 is fixedly connected to the bottom side of the heating shell 2, and the discharge pipe 5 is connected to the interior of the heating shell 2. A solenoid valve 6 is fixedly installed at the middle position of the outer side of the discharge pipe 5. The discharge pipe 5 and the solenoid valve 6 facilitate the discharge of the melted plastic. A control box 7 is fixedly installed at the top side of the receiving plate 1 near one corner. The control box 7 is used to control the melting device.
[0025] In practical use, the plastic melting device for plastic production in this embodiment first connects to the power supply and starts the device through the control box 7. Plastic is injected into the feed hopper 41. The second drive motor 45 drives one of the second rotating shafts 42 to rotate. Simultaneously, under the action of the two second rotating shafts 42, the two second rotating shafts 42 rotate in opposite directions, and the two crushing cylinders 43 rotate in opposite directions, thereby achieving the effect of crushing the plastic. The crushed plastic enters the heating shell 2. Then, the first drive motor 36 drives the first rotating shaft 31 to rotate in the heating shell 2. The first rotating shaft 31 drives multiple L-shaped heating rods 32 and spiral blades 33 to rotate clockwise. At the same time, the heating shell 2, multiple L-shaped heating rods 32 and annular heating plate 35 heat the plastic, causing the plastic to melt. Finally, the first rotating shaft 31 drives the spiral blades 33 to rotate counterclockwise to discharge the melted plastic.
[0026] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plastic melting device for plastic production, comprising a receiving plate (1), characterized in that: Support feet are fixedly connected to the bottom side of the receiving plate (1) near the four corners. An installation hole is provided at the center of the top side of the receiving plate (1). A heating shell (2) is fixedly connected to the installation hole. A rotating hole is provided at the center of the top side of the heating shell (2). A melting and stirring assembly (3) is provided inside the heating shell (2). The melting and stirring assembly (3) includes a first rotating shaft (31). The outer side of the first rotating shaft (31) is rotatably connected to the rotating hole near the top. Multiple L-shaped heating rods (32) are fixedly connected to the outside, and the multiple L-shaped heating rods (32) are arrayed around the center point of the first rotating shaft (31). A spiral blade (33) is fixedly connected to the outside of the first rotating shaft (31), and the spiral blade (33) is located at the bottom of the L-shaped heating rods (32). An annular heating plate (35) is fixedly connected to the outside of the heating shell (2). The heating shell (2) is rapidly heated by the multiple L-shaped heating rods (32) and the annular heating plate (35).
2. The plastic melting apparatus for plastic production according to claim 1, characterized in that: Two scraper blades (34) are fixedly connected to the outer side of the first rotating shaft (31) near the top end, and the two scraper blades (34) are symmetrically arranged. Both scraper blades (34) are in contact with the inner wall of the heating shell (2) and the plastic residue on the inner wall of the heating shell (2) is scraped off by the two scraper blades (34).
3. The plastic melting apparatus for plastic production according to claim 1, characterized in that: A first drive motor (36) is fixedly installed at the center of the top side of the heating housing (2). The output shaft end of the first drive motor (36) is fixedly connected to the top end of the first rotating shaft (31). The first drive motor (36) drives the first rotating shaft (31) to rotate in the heating housing (2).
4. The plastic melting apparatus for plastic production according to claim 1, characterized in that: A crushing assembly (4) is provided near the center of the heating shell (2). The crushing assembly (4) includes a feeding hopper (41). The feeding hopper (41) is fixedly connected to the top side of the heating shell (2) near the center. The feeding hopper (41) is connected to the interior of the receiving plate (1). Two second rotating shafts (42) are provided inside the feeding hopper (41). The two second rotating shafts (42) are symmetrically arranged. Both ends of the two second rotating shafts (42) are rotatably connected to the feeding hopper (41). A crushing cylinder (43) is fixedly connected to the outside of the two second rotating shafts (42). A drive gear (44) is fixedly connected to one end of the two second rotating shafts (42). The two drive gears (44) mesh with each other and are located outside the feeding hopper (41).
5. The plastic melting apparatus for plastic production according to claim 4, characterized in that: A second drive motor (45) is fixedly installed on the outside of the feed hopper (41), and the output shaft end of the second drive motor (45) is fixedly connected to the other end of one of the second rotating shafts (42). The second drive motor (45) drives one of the second rotating shafts (42) to rotate. At the same time, under the action of the two second rotating shafts (42), the two second rotating shafts (42) rotate towards each other, and the two crushing cylinders (43) rotate towards each other.
6. The plastic melting apparatus for plastic production according to claim 1, characterized in that: A discharge pipe (5) is fixedly connected to the bottom side of the heating shell (2), and the discharge pipe (5) is connected to the interior of the heating shell (2). A solenoid valve (6) is fixedly installed at the middle position on the outer side of the discharge pipe (5).
7. The plastic melting apparatus for plastic production according to claim 1, characterized in that: A control box (7) is fixedly installed on the top side of the receiving plate (1) near one corner. The control box (7) is used to control the melting device.