A filtering device for compatibilizer extruder

Abstract

The utility model relates to the field of compatibilizer production, and specifically to a filtering device for a compatibilizer extruder, comprising: a filter housing and connecting pipes installed at both ends thereof, a sealing mechanism installed in the filter housing, a segmented metal filter assembly slidably connected in the sealing mechanism, two ends of the segmented metal filter assembly respectively located on the outside of the filter housing, a telescopic rod assembly connected to one side of the filter housing, one end of the telescopic rod assembly detachably connected to one end of the segmented metal filter assembly. The telescopic rod assembly drives the segmented metal filter assembly to move, so that one of the filter mesh components moves out of the filter housing and the other enters the filter housing, so as to filter the compatibilizer raw material in a hot melt state all the time, improve the production efficiency of the compatibilizer, and the removed filter mesh component can be disassembled, cleaned or replaced, so as to improve the filtering effect during subsequent use.

Description

Technical Field

[0001] The utility model relates to the field of compatibilizer production, in particular to a filtering device of a compatibilizer extruder. Background Art

[0002] A compatibilizer is an additive that can make polymer blends with large differences in solubility parameters compatible. It uses the bonding force between molecules to promote the combination of two incompatible polymers to obtain a stable blend. It is mainly used for blending modified engineering plastics or preparing polymer alloy products, such as PC / ABS alloys, PP / PA alloys, etc. It can effectively reduce the size of the dispersed phase and keep the phase structure unchanged, thereby improving the mechanical properties of the blend. The compatibilizer is generally made by putting the raw materials into a stirrer, mixing the mixture through the stirrer, and inputting the mixed materials into the extruder for hot melting. The hot melt compatibilizer is then filtered and cooled, and the finished compatibilizer is obtained after screening.

[0003] With respect to the above-mentioned related technologies, the inventors found that the compatibilizer raw materials after hot melting are generally filtered through a metal filter to remove impurities contained therein, thereby improving the purity of the product. However, after long-term use, the filter holes of the metal filter will be clogged, which will affect the filtration efficiency of the hot-melt compatibilizer raw materials. Therefore, the staff needs to stop the machine and disassemble the filter structure completely before the filter can be disassembled for replacement or cleaning, thereby affecting the production efficiency of the compatibilizer. Utility Model Content

[0004] The utility model mainly solves the technical problem of providing a filtering device for a compatibilizer extruder, thereby improving the filtering efficiency of hot-melt compatibilizer raw materials and improving the production efficiency of the compatibilizer.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a filtering device for a compatibilizer extruder, comprising: a filtering housing and connecting pipes installed at both ends thereof, a sealing mechanism installed in the filtering housing, a segmented metal filter assembly slidably connected in the sealing mechanism, two ends of the segmented metal filter assembly are respectively located on the outside of the filtering housing, a telescopic rod assembly is connected to one side of the filtering housing, and one end of the telescopic rod assembly is detachably connected to one end of the segmented metal filter assembly;

[0006] The segmented metal filter assembly includes a middle filter element and two filter elements, and a snap-in limiting mechanism is respectively provided between the filter element and the middle filter element. The middle filter element and the filter element are detachably connected via the snap-in limiting mechanism. The middle filter element includes a connecting seat and a filter element 1 connected at both ends thereof, and a sealing gasket 1 is respectively connected at both ends of the filter element 1 close to the connecting seat. After the telescopic rod assembly is extended and retracted, the corresponding sealing gasket 1 is in close contact with the inner side of the sealing mechanism, and one of the filter elements is located outside the filter housing.

[0007] By adopting the above technical solution, the telescopic rod assembly drives the segmented metal filter mesh assembly to move, so that the filter mesh element is moved out of or into the filter housing, so that the compatibilizer raw material in a hot-melt state is always filtered inside the housing, thereby improving the production efficiency of the compatibilizer, and the removed filter mesh element can be disassembled, cleaned or replaced to improve the filtering effect during subsequent use.

[0008] In a preferred example, the utility model can be further configured as follows: the filter mesh component includes filter mesh 2, the end of filter mesh 2 away from filter mesh 1 is connected to a mounting strip, the side of the mounting strip close to filter mesh 2 is connected to a sealing ring 1, after the telescopic rod assembly is extended and retracted, the corresponding sealing ring 1 is in close contact with the filter housing, and the mounting strip is located on the outside of the filter housing.

[0009] By adopting the above technical solution, after the filter mesh is moved and the mounting strip is close to the filter housing, the sealing ring is compressed and deformed to seal the gap on the filter housing, thereby improving the sealing performance of the filter housing and preventing the hot-melt raw materials from leaking.

[0010] In a preferred example, the utility model can be further configured as follows: the card-connected limiting mechanism includes a limiting strip with a teardrop-shaped cross-section connected to one side of the filter screen two, a card slot adapted to the limiting strip is provided on one side of the filter screen one, an extension block is connected to the top of the side of the filter screen two away from the mounting strip, a notch adapted to the extension block is provided on the side of the filter screen one close to the top of the filter screen two, a countersunk hole is provided on the top of the extension block, a screw is installed in the countersunk hole, and one end of the screw is threadedly connected to the filter screen one.

[0011] By adopting the above technical solution, the limit bar moves along the vertical direction of the slot, and the limit bar is connected to the slot, thereby facilitating the disassembly and installation of filter screen one and filter screen two, and after the notch and the extension block are aligned, they are fastened by screws to improve the structural strength of filter screen one and filter screen two, and improve the structural stability of the two when filtering hot melt compatibilizer raw materials.

[0012] In a preferred example, the utility model can be further configured as follows: the sealing mechanism includes a sealing frame connected to both sides of the inner cavity of the filter shell, the inner side of the sealing frame is connected to a sealing ring 2, the top and bottom between the sealing frames are connected to a U-shaped sealing block, the inner side of the U-shaped sealing block is connected to a sealing gasket 2, the top and bottom of the segmented metal filter mesh assembly are respectively located on the inner side of the U-shaped sealing block, and the two ends of the segmented metal filter mesh assembly are respectively located on the inner side of the sealing frame.

[0013] By adopting the above technical solution, the sealing frame improves the sealing performance of the filter housing, and the U-shaped sealing block reduces the gap between the top and bottom of the segmented metal filter assembly, thereby improving the fineness of its filtration. When the segmented metal filter assembly moves, the overall sealing performance of the filter housing is improved through the sealing ring 2 and the sealing gasket 2, thereby reducing the possibility of hot-melt raw material leakage when the segmented metal filter assembly moves.

[0014] In a preferred example, the utility model can be further configured as follows: the telescopic rod assembly includes a mounting plate and an electric push rod connected to the mounting plate, support rods are respectively installed on both sides of the mounting plate, the support rods are connected to the filter housing, the protruding end of the electric push rod passes through the mounting plate and is connected to a U-shaped clamping plate, the U-shaped clamping plate is detachably connected to one of the mounting strips, the inner side of the U-shaped clamping plate is symmetrically connected to a limiting convex strip, and both sides of the mounting strip are respectively provided with limiting grooves adapted to the limiting convex strip, and the outer side of the U-shaped clamping plate is connected to at least one butterfly bolt.

[0015] By adopting the above technical solution, the corresponding filter screen 2 is driven to be located in the filter housing when the electric push rod is extended and retracted, and the other filter screen 2 is disassembled by sliding the limiting convex strip and the limiting groove, and after replacement, the filter screen is installed stably by tightening the butterfly bolt, so that the extruder maintains the working state and cooperates with the filter housing to filter the hot-melt compatibilizer raw material all the time, thereby improving the production efficiency of the compatibilizer.

[0016] In a preferred example, the utility model can be further configured as follows: protective mechanisms are respectively connected to both sides of the filter housing, the protective mechanisms include a U-shaped protective cover and a hinge installed on the top of the filter housing, the filter housing is connected to the U-shaped protective cover through a hinge, and the U-shaped clamping plate and butterfly bolt are both located on the inner side of the U-shaped protective cover.

[0017] By adopting the above technical solution, after the filter mesh outside the filter housing is replaced, the U-shaped protective cover cooperates with the hinge to swing, and the filter mesh cover is arranged inside it to prevent impurities and dust from adhering to the surface of the filter mesh, so as to improve the purity of the product after filtration. When replacing the filter mesh, the U-shaped protective cover is rotated by the hinge to clean or disassemble the filter mesh.

[0018] In summary, the utility model includes at least one of the following beneficial technical effects of the filtering device of the compatibilizer extruder:

[0019] 1. The telescopic rod assembly drives the segmented metal filter assembly to move, so that one filter element is moved out of the filter housing and the other enters the filter housing, so as to filter the compatibilizer raw material in the hot melt state all the time, thereby improving the production efficiency of the compatibilizer, and the removed filter element can be disassembled, cleaned or replaced to improve the filtering effect in subsequent use.

[0020] 2. When disassembling filter 1 and filter 2, the limit bar is moved along the vertical direction of the slot and the limit bar is connected to the slot to realize convenient disassembly and installation of the two. After the notch and the extension block are aligned, they are fastened with screws to improve the structural strength of filter 1 and filter 2, as well as the structural stability of the two when filtering hot-melt compatibilizer raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 for Figure 1 AA section view in;

[0024] Figure 3 It is a structural schematic diagram of the sealing mechanism of the utility model;

[0025] Figure 4 It is an exploded view of the segmented metal filter assembly of the utility model;

[0026] Figure 5 for Figure 4 Enlarged view of point B in .

[0027] In the figure: 1, filter housing; 2, connecting pipe; 30, sealing mechanism; 40, segmented metal filter assembly; 50, telescopic rod assembly; 60, protection mechanism;

[0028] 31. Sealing frame; 32. Sealing ring 2; 33. U-shaped sealing block; 34. Sealing pad 2;

[0029] 41. middle filter element; 42. filter mesh element; 43. clamping limit mechanism;

[0030] 51. Mounting plate; 52. Electric push rod; 53. Support rod; 54. U-shaped clamping plate; 55. Limiting convex strip; 56. Butterfly bolt;

[0031] 61. U-shaped protective cover; 62. Hinge;

[0032] 411, connecting seat; 412, filter screen 1; 413, sealing gasket 1;

[0033] 421, filter screen 2; 422, mounting strip; 423, sealing ring 1; 424, limiting groove;

[0034] 431, limit strip; 432, slot; 433, extension block; 434, notch; 435, countersunk hole; 436, screw. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0037] Reference Figure 1-5, which is a filtering device of a compatibilizer extruder disclosed in the utility model, comprising: a filter housing 1 and connecting pipes 2 installed at both ends thereof, a sealing mechanism 30 is installed in the filter housing 1, a segmented metal filter assembly 40 is slidably connected in the sealing mechanism 30, both ends of the segmented metal filter assembly 40 are respectively located on the outside of the filter housing 1, a telescopic rod assembly 50 is connected to one side of the filter housing 1, one end of the telescopic rod assembly 50 is detachably connected to one end of the segmented metal filter assembly 40, and the segmented metal filter assembly 40 includes a middle filter element 41 and two filter mesh members 42, a clamping limit mechanism 43 is respectively provided between the filter mesh member 42 and the middle filter member 41, the middle filter member 41 and the filter mesh member 42 are detachably connected through the clamping limit mechanism 43, the middle filter member 41 includes a connecting seat 411 and a filter mesh 1 412 connected at both ends thereof, and the filter mesh 1 412 is respectively connected to a sealing gasket 1 413 at both ends close to the connecting seat 411, after the telescopic rod assembly 50 is extended and retracted, the corresponding sealing gasket 1 413 is in close contact with the inner side of the sealing mechanism 30, and one of the filter mesh members 42 is located in the filter housing The filter element 42 includes a filter screen 421 outside the filter housing 1. The end of the filter screen 421 away from the filter screen 1 412 is connected to a mounting strip 422. The side of the mounting strip 422 close to the filter screen 421 is connected to a sealing ring 423. After the telescopic rod assembly 50 is extended, the corresponding sealing ring 423 is in close contact with the filter housing 1. The mounting strip 422 is located on the outside of the filter housing 1. The sealing gasket 413 and the sealing ring 423 are both made of high-temperature resistant rubber materials. The external extruder is installed with one of the connecting pipes 2, and the filter screen 412 cooperates with it. A filter screen 421 filters the hot-melt raw material of the compatibilizer to improve the purity of the product. After being used for a period of time, the segmented metal filter screen assembly 40 is driven to move by the telescopic rod assembly 50, so that one of the filter screens 421 is moved out of the filter housing 1, and the other filter screen 421 enters the filter housing 1, and cooperates with the filter screen 1 412, so that the inner cavity of the filter housing 1 always filters the hot-melt raw material. After the used filter screen 421 is moved out of the filter housing 1, it can be disassembled, replaced and cleaned, thereby improving the efficiency of subsequent filtration.

[0038] The clamping limit mechanism 43 includes a limit bar 431 connected to one side of the second filter screen 421 and having a water drop-shaped cross section. A clamping groove 432 adapted to the limit bar 431 is provided on one side of the first filter screen 412. An extension block 433 is connected to the top of the second filter screen 421 away from the mounting strip 422. A notch 434 adapted to the extension block 433 is provided on the top side of the first filter screen 412 close to the second filter screen 421. A countersunk hole 435 is provided on the top of the extension block 433. The countersunk hole 435 A screw 436 is installed inside, and one end of the screw 436 is threadedly connected to the filter screen 1 412; the limiting strip 431 moves vertically along the slot 432 so that the filter screen 1 412 and the filter screen 2 421 are clamped together, and are fastened by the screw 436 after the notch 434 and the extension block 433 are aligned, thereby improving the structural strength of the filter screen 1 412 and the filter screen 2 421, and improving the structural stability of the two when filtering the hot melt compatibilizer raw material, while realizing convenient disassembly and installation of the two.

[0039] The sealing mechanism 30 includes a sealing frame 31 connected to both sides of the inner cavity of the filter housing 1, a sealing ring 32 is connected to the inner side of the sealing frame 31, a U-shaped sealing block 33 is connected to the top and bottom of the sealing frame 31, a sealing gasket 34 is connected to the inner side of the U-shaped sealing block 33, the top and bottom of the segmented metal filter mesh assembly 40 are respectively located on the inner side of the U-shaped sealing block 33, and the two ends of the segmented metal filter mesh assembly 40 are respectively located on the inner side of the sealing frame 31; after the filter mesh element 42 and the middle filter element 41 are moved, the sealing gasket 413 is in close contact with the corresponding side of the sealing frame 31, and the corresponding sealing ring 423 is in close contact with the outer wall of the filter housing 1, thereby improving its overall sealing performance, and at the same time cooperating with the sealing ring 32 and the sealing gasket 34 to further improve the sealing performance of the inner side of the filter housing 1.

[0040] The telescopic rod assembly 50 includes a mounting plate 51 and an electric push rod 52 connected to the mounting plate 51. Support rods 53 are respectively installed on both sides of the mounting plate 51. The support rods 53 are connected to the filter housing 1. The extended end of the electric push rod 52 passes through the mounting plate 51 and is connected to a U-shaped clamping plate 54. The U-shaped clamping plate 54 is detachably connected to one of the mounting strips 422. The inner side of the U-shaped clamping plate 54 is symmetrically connected to the limited position convex strips 55. The two sides of the mounting strip 422 are respectively provided with There is a limiting groove 424 adapted to the limiting convex strip 55, and the outer side of the U-shaped clamping plate 54 is connected to at least one butterfly bolt 56; when disassembling the corresponding filter screen 2 421, remove the screw 436 and loosen the butterfly bolt 56 to drive the filter screen 2 421 to move upward. At this time, the limiting convex strip 55 slides in the limiting groove 424, and the limiting strip 431 slides in the clamping groove 432, so as to disassemble and install the filter screen 2 421 and improve the production efficiency of the compatibilizer.

[0041] A protective mechanism 60 is connected to both sides of the filter housing 1, and the protective mechanism 60 includes a U-shaped protective cover 61 and a hinge 62 installed on the top of the filter housing 1. The filter housing 1 is connected to the U-shaped protective cover 61 through the hinge 62, and the U-shaped clamping plate 54 and the butterfly bolt 56 are both located on the inner side of the U-shaped protective cover 61; after the filter mesh 42 outside the filter housing 1 is replaced, the U-shaped protective cover 61 cooperates with the hinge 62 to swing, and the filter mesh 42 is covered inside it to prevent impurities and dust from adhering to the surface of the filter mesh 42, so as to improve the purity of the product after filtration, and when replacing the filter mesh 42, the U-shaped protective cover 61 is rotated through the hinge 62 to clean or disassemble the filter mesh 42.

[0042] The implementation principle of this embodiment is: when in use, the external extruder cooperates with the corresponding connecting pipe 2 to output the hot-melt compatibilizer raw material into the filter housing 1. At this time, the filter screen 1 412 cooperates with one of the filter screens 2 421 to filter the hot-melt compatibilizer raw material, and after a period of use, the electric push rod 52 drives one of the filter screens 2 421 to move out of the filter housing 1, and the other filter screen 2 421 enters the filter housing 1 and continues to cooperate with the filter screen 1 412, so that the inner cavity of the filter housing 1 always filters the hot-melt raw material, thereby improving the production efficiency of the compatibilizer and improving the product purity. At the same time, the sealing gasket 1 413 is in close contact with the side of the corresponding sealing frame 31, and the corresponding sealing ring 1 423 is in close contact with the outer wall of the filter housing 1, and cooperates with the sealing ring 2 32 and the sealing gasket 2 34 to seal the gap therebetween, thereby improving the overall sealing performance of the filter housing 1.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A filtering device for a compatibilizer extruder, characterized in that: include: A filter housing (1) and connecting pipes (2) installed at both ends thereof, wherein a sealing mechanism (30) is installed in the filter housing (1), a segmented metal filter assembly (40) is slidably connected in the sealing mechanism (30), both ends of the segmented metal filter assembly (40) are respectively located outside the filter housing (1), a telescopic rod assembly (50) is connected to one side of the filter housing (1), and one end of the telescopic rod assembly (50) is detachably connected to one end of the segmented metal filter assembly (40); The segmented metal filter assembly (40) comprises a middle filter element (41) and two filter elements (42); a clamping limit mechanism (43) is provided between the filter element (42) and the middle filter element (41); the middle filter element (41) and the filter element (42) are detachably connected via the clamping limit mechanism (43); the middle filter element (41) comprises a connecting seat (411) and a filter element (412) connected to both ends thereof; both ends of the filter element (412) close to the connecting seat (411) are respectively connected to a sealing gasket (413); after the telescopic rod assembly (50) is extended and retracted, the corresponding sealing gasket (413) is in close contact with the inner side of the sealing mechanism (30); and one of the filter elements (42) is located outside the filter housing (1).

2. The filtering device of a compatibilizer extruder according to claim 1, characterized in that: The filter mesh component (42) comprises a second filter mesh (421); an end of the second filter mesh (421) away from the first filter mesh (412) is connected to a mounting strip (422); a side of the mounting strip (422) close to the second filter mesh (421) is connected to a sealing ring (423); after the telescopic rod assembly (50) is extended or retracted, the corresponding sealing ring (423) is in close contact with the filter housing (1); and the mounting strip (422) is located on the outside of the filter housing (1).

3. The filtering device of a compatibilizer extruder according to claim 2, characterized in that: The clamping limit mechanism (43) comprises a limit bar (431) with a teardrop-shaped cross section connected to one side of the second filter screen (421); a clamping groove (432) adapted to the limit bar (431) is provided on one side of the first filter screen (412); an extension block (433) is connected to the top of the side of the second filter screen (421) away from the mounting strip plate (422); a notch (434) adapted to the extension block (433) is provided on the side of the first filter screen (412) close to the top of the second filter screen (421); a countersunk hole (435) is provided on the top of the extension block (433); a screw (436) is installed in the countersunk hole (435); one end of the screw (436) is threadedly connected to the first filter screen (412).

4. The filtering device of a compatibilizer extruder according to claim 1, characterized in that: The sealing mechanism (30) comprises a sealing frame (31) connected to both sides of the inner cavity of the filter housing (1); a second sealing ring (32) is connected to the inner side of the sealing frame (31); a U-shaped sealing block (33) is connected to the top and bottom of the sealing frame (31); a second sealing gasket (34) is connected to the inner side of the U-shaped sealing block (33); the top and bottom of the segmented metal filter assembly (40) are respectively located on the inner side of the U-shaped sealing block (33); and the two ends of the segmented metal filter assembly (40) are respectively located on the inner side of the sealing frame (31).

5. The filtering device of a compatibilizer extruder according to claim 2, characterized in that: The telescopic rod assembly (50) comprises a mounting plate (51) and an electric push rod (52) connected to the mounting plate (51); support rods (53) are respectively mounted on both sides of the mounting plate (51); the support rods (53) are connected to the filter housing (1); the protruding end of the electric push rod (52) passes through the mounting plate (51) and is connected to a U-shaped clamping plate (54); the U-shaped clamping plate (54) is detachably connected to one of the mounting strips (422); the inner side of the U-shaped clamping plate (54) is symmetrically connected to a limiting convex strip (55); the two sides of the mounting strip (422) are respectively provided with limiting grooves (424) adapted to the limiting convex strip (55); and the outer side of the U-shaped clamping plate (54) is connected to at least one butterfly bolt (56).

6. The filtering device of a compatibilizer extruder according to claim 5, characterized in that: Both sides of the filter housing (1) are respectively connected to protective mechanisms (60), the protective mechanisms (60) comprising a U-shaped protective cover (61) and a hinge (62) mounted on the top of the filter housing (1), the filter housing (1) is connected to the U-shaped protective cover (61) via the hinge (62), and the U-shaped clamping plate (54) and the butterfly bolt (56) are both located on the inner side of the U-shaped protective cover (61).

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