Melt filter with circulation heating function

Abstract

The utility model discloses a kind of melt filters with circulating heating function, belong to melt filtering technical field, comprising: filter bucket and installation cover;Driving shaft is rotatably connected in installation cover bottom end, the installation cover is set on filter bucket upper end, the installation cover upper end side is equipped with inlet;The utility model, when the solubles are guided into by inlet frame set in driving shaft bottom end, can make it evenly spread on the surface of screening plate, cooperate with the screening plate of inlet frame bottom end, and two groups of abutting rods and multiple abutting blocks, screening plate can rotate and vertically displace, by the superposition effect of centrifugal force and vertical oscillation, impurities in solubles are forced to quickly stratify and separate from mainstream fluid, significantly improve filtering efficiency, avoid solubles local accumulation and impurities retention, cooperate with circulating heating system to maintain solubles fluidity, both reduce filter screen blockage risk, and reduce impurity penetration probability, so that the practicality of melt filter with circulating heating function is better.

Description

Technical Field

[0001] This utility model belongs to the field of melt filtration technology, specifically relating to a melt filter with circulating heating function. Background Technology

[0002] A melt filter with circulating heating is a filtration device designed to handle high-temperature molten materials. Its core feature lies in maintaining the temperature stability of the melt during the filtration process using media such as heat transfer oil, electric heating, or steam. This prevents the melt from increasing viscosity, decreasing fluidity, or solidifying due to temperature drops, thus ensuring filtration efficiency and product quality. By using a melt filter with circulating heating, impurities, gels, and unmelted particles in the melt can be effectively removed, reducing defects such as black spots, bubbles, and streaks in the finished product, improving its appearance and performance. Furthermore, it prevents impurities from entering extruders, injection molding machines, or spinning equipment, reducing equipment wear, clogging, and malfunctions, and extending equipment lifespan.

[0003] Chinese Patent Publication No. CN221588768U relates to the field of melt filtration technology and discloses a melt filter, including a main frame, a top frame at the top of the main frame, a feed pipe fixedly connected to the top of the top frame, and a discharge pipe fixedly connected to the bottom of the main frame. A filtering mechanism is provided on the main frame. Through the design of the filtering mechanism, the melt enters through the feed pipe, is filtered, and discharged through the discharge pipe. Filtered impurities remain on the top of the filter plates. When the motor operates, it drives a square rod to rotate. As the circular support rotates, different filter plates sequentially stop at the bottom of the feed pipe to perform the filtration task. When the filtered filter plates pass through a pusher plate, the pusher plate scrapes off the impurities remaining on their tops. Combined with the conveyor belt operation, the scraped impurities are quickly conveyed to the outside, thus effectively ensuring the filtration effect of the filter plates and avoiding the troublesome situation of repeatedly replacing filter plates.

[0004] In practical use, this utility model can separate impurities from the melt through the built-in filter component. However, the filter components of existing melt filters with circulating heating function usually adopt a fixed installation structure, which makes it easy for the melt to form flow dead zones or path dependence when flowing through specific areas. This causes the local filtration load to be too high while the efficiency of other areas is idle, which directly weakens the filtration efficiency. This makes it impossible to fully intercept the small particles or colloidal substances remaining in the melt, which makes the practicality of melt filters with circulating heating function somewhat lacking. Utility Model Content

[0005] This invention proposes a melt filter with circulating heating function to solve the problem that it is difficult to effectively filter impurities in a melt in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a melt filter with circulating heating function, comprising:

[0007] Filter canister and mounting cover;

[0008] A drive shaft is rotatably connected to the bottom of the mounting cover, which is located on the upper end of the filter barrel. The upper end of the mounting cover has a feed inlet on one side, and the bottom of the filter barrel is inclined and has a discharge outlet.

[0009] A feed frame is set inside the filter barrel. The bottom end of the drive shaft is set inside the feed frame. Multiple material discharge holes are provided through the bottom end of the feed frame. A screening plate adapted to the inner wall of the filter barrel is provided at the bottom end of the feed frame.

[0010] Multiple screening holes are provided through the screening plate. The bottom two sides of the feed frame are provided with mounting plates that are adapted to the inner wall of the filter barrel. The bottom of the screening plate is provided with a mounting shaft.

[0011] In a preferred embodiment, the inner wall of the filter barrel is provided with multiple heating plates, which are arranged in a ring around the central axis of the filter barrel, and an insulation layer is provided inside the filter barrel located outside the multiple heating plates.

[0012] In a preferred embodiment, the upper end of the mounting cover is provided with a drive motor, and the upper end of the drive shaft passes through the mounting cover and is disposed on the output end of the drive motor.

[0013] In order to effectively filter impurities in the solution, the sieve plate is further provided with abutment rods on both sides of the upper end. The upper ends of the two abutment rods are both arc-shaped and pass through both sides of the sieve plate. The bottom end of the mounting cover is provided with multiple hemispherical abutment blocks, which are distributed in a ring around the central axis of the mounting cover.

[0014] In a preferred embodiment, a limiting spring is sleeved on the outer side of each of the two abutting rods, and the upper ends of the two limiting springs are respectively located on both sides of the bottom end of the feed frame.

[0015] In a preferred embodiment, both sides of the screening plate are provided with mounting grooves adapted to the mounting plates. The two mounting plates are respectively provided through the two mounting grooves and are slidably connected to the side walls of the mounting grooves. Each of the two mounting plates is provided with a scraper on one side, and the two scrapers are respectively abutted against the inner walls of the filter barrel.

[0016] In order to heat the melt more evenly, multiple stirring blades are provided on the outer side of the mounting shaft, and multiple positioning shafts are rotatably connected to one side of each of the two mounting plates, with multiple stirring blades provided on the outer side of each of the positioning shafts.

[0017] In a preferred embodiment, rack plates are provided on both sides of the bottom end of the screening plate, and positioning wheels adapted to the rack plates are provided on the outer sides of the plurality of positioning shafts. The two rack plates are respectively engaged with the plurality of positioning wheels.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, through the feeding frame set at the bottom of the drive shaft, allows the melt to be evenly spread on the surface of the screening plate when it is introduced through the feeding frame. With the screening plate at the bottom of the feeding frame, as well as two sets of abutting rods and multiple abutting blocks, the screening plate can rotate and vertically move. Through the superposition effect of centrifugal force and vertical oscillation, the impurities in the melt are quickly stratified and separated from the main fluid, which significantly improves the filtration efficiency and avoids local accumulation of melt and retention of impurities. With the help of the circulating heating system to maintain the fluidity of the melt, it reduces the risk of filter screen clogging and reduces the probability of impurity penetration, making the melt filter with circulating heating function more practical.

[0020] 2. This utility model, through multiple stirring blades set on the outside of the mounting shaft and multiple stirring blades on the outside of multiple positioning shafts, can effectively stir the melt when it flows through the area by rotating the stirring blades and stirring blades. This not only significantly improves the intensity of internal thermal convection of the melt and accelerates the efficiency of heat transfer from the heating element to the core of the melt, but also eliminates local temperature differences through dynamic turbulence, allowing the melt to quickly reach a thermal equilibrium state during the circulating heating process. This improves heating efficiency while ensuring process stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main appearance of the structure of this utility model;

[0022] Figure 2 This is a schematic front cross-sectional view of the structure of this utility model;

[0023] Figure 3 This is a partial external view of the structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the appearance of the mounting cover of this utility model.

[0025] In the diagram: 1. Filter barrel; 2. Mounting cover; 3. Drive shaft; 4. Feed inlet; 5. Discharge outlet; 6. Feed frame; 7. Drop hole; 8. Screening plate; 9. Screening hole; 10. Mounting plate; 11. Mounting shaft; 12. Heating plate; 13. Insulation layer; 14. Drive motor; 15. Abutment rod; 16. Abutment block; 17. Limit spring; 18. Scraper; 19. Stirring blade; 20. Positioning shaft; 21. Stirring blade; 22. Toothed plate; 23. Positioning wheel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1:

[0028] Please see Figure 1-4 This utility model provides a melt filter with a circulating heating function, comprising:

[0029] Filter canister 1 and mounting cover 2;

[0030] The drive shaft 3 is rotatably connected to the bottom of the mounting cover 2. The mounting cover 2 is set on the upper end of the filter barrel 1. The upper end of the mounting cover 2 is provided with a feed inlet 4. The bottom end of the filter barrel 1 is inclined and is provided with a discharge outlet 5.

[0031] The feed frame 6 is set inside the filter barrel 1. The bottom end of the drive shaft 3 is set inside the feed frame 6. Multiple discharge holes 7 are provided through the bottom end of the feed frame 6. The bottom end of the feed frame 6 is provided with a screening plate 8 that is adapted to the inner wall of the filter barrel 1.

[0032] Multiple screening holes 9 are all installed through the screening plate 8. The bottom sides of the feed frame 6 are provided with mounting plates 10 that are adapted to the inner wall of the filter barrel 1. The bottom of the screening plate 8 is provided with a mounting shaft 11.

[0033] Specifically, such as Figure 2 As shown, the inner wall of the filter barrel 1 is provided with multiple heating plates 12. The heating plates 12 are existing technology and will not be described in detail here. The multiple heating plates 12 are arranged in a ring around the central axis of the filter barrel 1. The multiple heating plates 12 can heat the melt evenly and comprehensively. The filter barrel 1 located outside the multiple heating plates 12 is provided with a heat insulation layer 13. The heat insulation layer 13 can prevent the heat inside the filter barrel 1 from leaking out.

[0034] Specifically, such as Figure 1 and Figure 2 As shown, the upper end of the mounting cover 2 is equipped with a drive motor 14. The drive motor 14 is existing technology and will not be described in detail here. The upper end of the drive shaft 3 passes through the mounting cover 2 and is set on the output end of the drive motor 14. When the drive motor 14 is started, it can drive the drive shaft 3 and the feed frame 6 to rotate, so that the melt entering through the feed port 4 can be evenly entered into the filter barrel 1 through multiple discharge holes 7, thereby improving the filtration effect.

[0035] Specifically, such as Figure 2 , Figure 3 and Figure 4As shown, both sides of the upper end of the screening plate 8 are provided with abutment rods 15. The upper ends of the two abutment rods 15 are both arc-shaped and pass through both sides of the screening plate 8 respectively. The bottom end of the mounting cover 2 is provided with multiple hemispherical abutment blocks 16. The multiple abutment blocks 16 are distributed in a ring around the central axis of the mounting cover 2.

[0036] Through its design, the two arc-shaped abutment rods 15, together with the multiple hemispherical abutment blocks 16, can intermittently push the sieve plate 8 up and down, thereby improving the filtration effect of the solution and preventing impurities from clogging the sieve holes 9.

[0037] Specifically, such as Figure 2 and Figure 3 As shown, a limiting spring 17 is sleeved on the outer side of each of the two abutting rods 15. The upper ends of the two limiting springs 17 are respectively set on both sides of the bottom end of the feed frame 6. When the two limiting springs 17 separate the two abutting rods 15 from the multiple abutting blocks 16, they can drive the abutting rods 15 and the screening plate 8 to return to their original positions, thereby enabling the screening plate 8 to move up and down reciprocally.

[0038] Specifically, such as Figure 2 and Figure 3 As shown, both sides of the screening plate 8 are provided with mounting grooves that are adapted to the mounting plates 10. The two mounting plates 10 pass through the two mounting grooves respectively and are slidably connected to the side walls of the mounting grooves. The two mounting plates 10 can restrict the vertical movement of the screening plate 8 to prevent it from shifting position during movement. Each side of the two mounting plates 10 is provided with a scraper 18. The two scraper 18 abut against the inner walls of the filter barrel 1 respectively. The two scraper 18 are made of metal. The two mounting plates 10 will drive the two scraper 18 to rotate, thereby conveniently cleaning the soluble substances adhering to the inner wall of the filter barrel 1. This not only saves the time and manpower of manual cleaning, but also prevents it from affecting the subsequent use of the filter.

[0039] Example 2:

[0040] Please see Figure 1-4 This utility model provides a melt filter with a circulating heating function, comprising:

[0041] Filter canister 1 and mounting cover 2;

[0042] The drive shaft 3 is rotatably connected to the bottom of the mounting cover 2. The mounting cover 2 is set on the upper end of the filter barrel 1. The upper end of the mounting cover 2 is provided with a feed inlet 4. The bottom end of the filter barrel 1 is inclined and is provided with a discharge outlet 5.

[0043] The feed frame 6 is set inside the filter barrel 1. The bottom end of the drive shaft 3 is set inside the feed frame 6. Multiple discharge holes 7 are provided through the bottom end of the feed frame 6. The bottom end of the feed frame 6 is provided with a screening plate 8 that is adapted to the inner wall of the filter barrel 1.

[0044] Multiple screening holes 9 are all installed through the screening plate 8. The bottom sides of the feed frame 6 are provided with mounting plates 10 that are adapted to the inner wall of the filter barrel 1. The bottom of the screening plate 8 is provided with a mounting shaft 11.

[0045] Specifically, such as Figure 2 and Figure 3 As shown, multiple stirring blades 19 are provided on the outer side of the mounting shaft 11, and multiple positioning shafts 20 are rotatably connected to one side of each of the two mounting plates 10. Multiple stirring blades 21 are provided on the outer side of each of the multiple positioning shafts 20.

[0046] Through its design, the screening plate 8 will drive the mounting shaft 11 and multiple stirring blades 19 to rotate and move up and down during operation. The two feed frames 6 will simultaneously drive the two mounting plates 10 and multiple positioning shafts 20 to rotate, thereby driving multiple stirring blades 21 to rotate. This will allow for thorough and uniform stirring of the melt, improving its heating efficiency and uniformity.

[0047] Specifically, such as Figure 2 and Figure 3 As shown, both sides of the bottom end of the sieve plate 8 are provided with rack plates 22, and the outer sides of multiple positioning shafts 20 are provided with positioning wheels 23 that are adapted to the rack plates 22. The two rack plates 22 are respectively engaged with the multiple positioning wheels 23. When the sieve plate 8 moves up and down, it will drive the two rack plates 22 to move up and down, thereby driving the multiple positioning wheels 23 to rotate. The multiple positioning wheels 23 will respectively drive the multiple positioning shafts 20 and the multiple stirring blades 21 to rotate, so that the multiple stirring blades 21 can both revolve around the revolution and rotate on their own axis, which improves the stirring effect of the melt.

[0048] See Figure 1-4When using a melt filter with circulating heating function, the melt is first added to the filter tank 1 through the feed inlet 4. As the melt enters the filter tank 1, it falls onto the feed frame 6. Then, multiple heating plates 12 and a drive motor 14 are activated. The heating plates 12 heat the melt in the filter tank 1. The output of the drive motor 14 drives the drive shaft 3 to rotate, which in turn drives the feed frame 6 to rotate, allowing the melt to be evenly discharged into the filter tank 1 through multiple discharge holes 7. As the melt is discharged from the feed frame 6, it falls onto the screening plate 8. When the feed frame 6 rotates, it drives the screening plate 8 to rotate via two mounting plates 10 and two contact rods 15, improving its filtration effect. During rotation, the screening plate 8 works in conjunction with multiple contact blocks 16 on the upper end of the mounting cover 2. The screen plate 8 can move up and down, further improving its filtering effect on the melt. When the screen plate 8 is running, it will also drive the mounting shaft 11 at the bottom and multiple stirring blades 19 to rotate and move up and down. When the feed frame 6 rotates, it will drive the two mounting plates 10 to rotate, which will drive multiple positioning shafts 20 and multiple stirring blades 21 to rotate, which can more fully stir the melt and improve the efficiency and uniformity of the melt heating. The filtered melt can be discharged through the discharge port 5. The impurities filtered by multiple discharge holes 7 and multiple screening holes 9 will remain on the feed frame 6 and the screen plate 8. They can be removed by disassembling the mounting cover 2, so that the impurities can be cleaned conveniently. This allows the melt filter with circulating heating function to heat and filter the melt more effectively.

[0049] 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 melt filter with circulating heating function, characterized in that, include: Filter canister (1) and mounting cover (2); The drive shaft (3) is rotatably connected to the bottom of the mounting cover (2). The mounting cover (2) is set on the upper end of the filter barrel (1). The upper end of the mounting cover (2) is provided with a feed inlet (4). The bottom end of the filter barrel (1) is inclined and is provided with a discharge outlet (5). The feed frame (6) is set inside the filter barrel (1). The bottom end of the drive shaft (3) is set inside the feed frame (6). The bottom end of the feed frame (6) is provided with multiple discharge holes (7). The bottom end of the feed frame (6) is provided with a screening plate (8) that is adapted to the inner wall of the filter barrel (1). Multiple screening holes (9) are provided through the screening plate (8). The bottom sides of the feed frame (6) are provided with mounting plates (10) that are adapted to the inner wall of the filter barrel (1). The bottom of the screening plate (8) is provided with a mounting shaft (11).

2. A melt filter with circulating heating function according to claim 1, characterized in that: The filter barrel (1) has multiple heating plates (12) on its inner wall. The multiple heating plates (12) are arranged in a ring around the central axis of the filter barrel (1). The filter barrel (1) located outside the multiple heating plates (12) has a heat insulation layer (13).

3. A melt filter with circulating heating function according to claim 1, characterized in that: The upper end of the mounting cover (2) is provided with a drive motor (14), and the upper end of the drive shaft (3) passes through the mounting cover (2) and is located on the output end of the drive motor (14).

4. A melt filter with circulating heating function according to claim 1, characterized in that: The sieve plate (8) is provided with abutting rods (15) on both sides of the upper end. The upper ends of the two abutting rods (15) are arranged in an arc shape and pass through both sides of the sieve plate (8). The bottom end of the mounting cover (2) is provided with a plurality of abutting blocks (16) arranged in a hemispherical shape. The plurality of abutting blocks (16) are arranged in a ring around the central axis of the mounting cover (2).

5. A melt filter with circulating heating function according to claim 4, characterized in that: Both of the two abutment rods (15) are fitted with limiting springs (17) on their outer sides, and the upper ends of the two limiting springs (17) are respectively set on both sides of the bottom end of the feed frame (6).

6. A melt filter with circulating heating function according to claim 1, characterized in that: The screening plate (8) has mounting grooves that are compatible with the mounting plate (10) on both sides. The two mounting plates (10) pass through the two mounting grooves respectively and are slidably connected to the side wall of the mounting groove. The two mounting plates (10) have scraper plates (18) on one side respectively. The two scraper plates (18) abut against the inner wall of the filter barrel (1) on both sides respectively.

7. A melt filter with circulating heating function according to claim 1, characterized in that: Multiple stirring blades (19) are provided on the outside of the mounting shaft (11), and multiple positioning shafts (20) are rotatably connected to one side of each of the two mounting plates (10), with multiple stirring blades (21) provided on the outside of each of the multiple positioning shafts (20).

8. A melt filter with circulating heating function according to claim 7, characterized in that: The bottom of the screening plate (8) is provided with rack plates (22) on both sides, and the outer side of the multiple positioning shafts (20) is provided with positioning wheels (23) that are adapted to the rack plates (22). The two rack plates (22) are respectively engaged and connected with the multiple positioning wheels (23).

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