Self-cleaning laminated mesh-free filter for plastic extrusion and filtration

Abstract

The utility model provides a self-cleaning lamination type no-net filter for plastic extrusion and filtration, which belongs to the technical field of plastic processing equipment and comprises a filter cartridge, an L-shaped feed pipe is arranged on the left side of the upper surface of the filter cartridge in a penetrating manner, and a hopper is arranged on the top of the L-shaped feed pipe in a penetrating manner; according to the utility model, the driving assembly is used for driving the laminated type no-net filter to rotate, and hot-melt plastic is thrown out of the laminated type no-net filter under the action of the rotating centrifugal force of the laminated type no-net filter, so that the hot-melt plastic is ensured to be discharged from filtering holes in the laminated type no-net filter; plastic is prevented from flowing to the impurity discharging pipe along the laminated type no-net filter to be discharged, the filtering effect is guaranteed, in the process that the driving assembly drives the laminated type no-net filter to rotate, impurities which are embedded into the filtering holes and have the same diameter as the filtering holes can be thrown out of the filtering holes, the filtering holes in the laminated type no-net filter are prevented from being blocked, and the filtering effect is guaranteed. And the filtering effect of the laminated net-free filter is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic processing equipment, especially relates to a self-cleaning laminated netless filter for plastic extrusion filtration. BACKGROUND

[0002] The plastic extruder filter is an important component in the plastic extruder, and its main function is to filter out impurities in the plastic melt, ensure that the pure melt smoothly enters the extrusion molding head, thereby avoiding impurities from blocking the flow channel and ensuring the quality of the plastic product.

[0003] In the prior art, a laminated filter sleeve and a laminated netless filter for plastic extrusion filtration are disclosed in a patent with the authorization announcement number CN104772889B, which has the characteristics of not stopping, not changing the net, and not affecting the use of high impurity content during production, is convenient to use, saves cost and manpower, is suitable for all plastic materials that can be melt-extruded, and has a long service life.

[0004] However, when filtering plastic, the device completely relies on the rotation of the large screw to drive the hot melt plastic to move in the laminated filter sleeve to extrude the plastic from the laminated filter sleeve. This method cannot guarantee that the hot melt plastic completely flows out of the laminated filter sleeve, and the hot melt plastic is easily directly moved to the small screw and small screw cylinder along with the impurities discharged, which affects the filtering effect. When the wire slot in the laminated filter sleeve is the same diameter as the impurities, the impurities are easily embedded in the wire slot of the laminated filter sleeve, causing the laminated filter sleeve to be blocked, which affects the filtering effect of the laminated filter sleeve on the hot melt plastic. Therefore, a self-cleaning laminated netless filter for plastic extrusion filtration is designed to solve the above problems. SUMMARY

[0005] The utility model aims at solving the problems in the above background art and provides a self-cleaning laminated netless filter for plastic extrusion filtration.

[0006] The utility model solves the technical problem of providing a self-cleaning laminated netless filter for plastic extrusion filtration, which solves the inconvenience of the laminated netless filter for plastic extrusion filtration in the prior art.

[0007] The utility model provides a kind of for plastic extrusion filtering self-cleaning laminated netless filter, including filter cartridge, L-shaped feed pipe, hopper, laminated netless filter, bearing and impurity discharge pipe, the upper surface left side of the filter cartridge is provided with L-shaped feed pipe, the top of the L-shaped feed pipe is provided with hopper, the bottom of the L-shaped feed pipe is rotatably provided with laminated netless filter by bearing, the right end of the laminated netless filter is rotatably arranged in the internal right side of filter cartridge by bearing, the right end of the filter cartridge is provided with impurity discharge pipe, the upper portion of the impurity discharge pipe is equipped with support, the right side surface of the support is fixedly installed with first motor, the output end of the first motor is equipped with small screw rod, the left end of the small screw rod is fixedly provided with large screw rod, the left and right sides of the filter cartridge are both fixedly provided with guide plate, the bottom central portion of the filter cartridge is provided with discharge pipe, the left side surface of the filter cartridge is equipped with drive assembly for driving laminated netless filter rotation.

[0008] Preferably, the small screw rod is matched with the impurity discharge pipe, the large screw rod is matched with the central through hole of the laminated netless filter, and the small screw rod and the large screw rod are respectively located in the impurity discharge pipe and the laminated netless filter.

[0009] Preferably, the small screw rod and the large screw rod have the same thread direction.

[0010] Preferably, the guide plate is provided with two pieces, the two pieces of guide plate have an inverted eight-shaped structure, and the two pieces of guide plate are located below the laminated netless filter, and the penetration of the discharge pipe is located in the center of the two pieces of guide plate.

[0011] Preferably, the laminated netless filter comprises a plurality of annular filter sheets, filter holes, through holes and connecting bolts, the laminated netless filter is composed of a plurality of annular filter sheets, the plurality of annular filter sheets form a material containing cavity, a plurality of filter holes are formed on the outer surface of the annular filter sheet, a through hole is formed on the upper and lower sides of the annular filter sheet, the plurality of annular filter sheets are connected by the connecting bolts penetrating through the through holes, and the two ends of the connecting bolts are threadedly connected with nuts.

[0012] Preferably, the drive assembly comprises a second motor installed on the left side surface of the filter cartridge and a gear ring fixed on the left side of the outer surface of the laminated netless filter, and the output end of the second motor is provided with a gear.

[0013] Preferably, the gear and the gear ring are engaged with each other.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] 1. The utility model discloses a set with the barrow, the small screw rod and the big screw rod, when filtering the plastic, the hot melt plastic is added through the hopper, the plastic enters the laminated netless filter, and the first motor drives the big screw rod and the small screw rod to rotate, and the plastic that enters the laminated netless filter is driven to the right side, and the laminated netless filter filters the hot melt plastic, and the plastic is discharged along the filter hole on the laminated netless filter and falls on the guide plate and is discharged from the discharge pipe, and the impurity is in the laminated netless filter and is driven to the right side through the big screw rod, until the impurity enters the barrow, and the small screw rod drives the impurity to move to the right side, until discharging from the right end of the barrow, realize the effect that the laminated netless filter is cleaned automatically.

[0016] 2. The utility model discloses a set with the driving assembly, when filtering the hot melt plastic, the gear is rotated through the second motor on the driving assembly, and the gear drives the gear ring to rotate, makes the laminated netless filter along L shape feed pipe and bearing rotation, under the action of laminated netless filter rotation centrifugal force, the hot melt plastic is thrown from the laminated netless filter, guarantees the hot melt plastic to discharge from the filter hole on the laminated netless filter, prevents the plastic from flowing along the laminated netless filter and discharging at the barrow, guarantees the filtering effect, and in the process that the driving assembly drives the laminated netless filter to rotate, can throw the impurity that is embedded in the filter hole and same with the filter hole diameter from the filter hole, prevents the filter hole on the laminated netless filter from blocking, guarantees the filtering effect of laminated netless filter. DRAWINGS

[0017] In order to make the technical scheme of the specific embodiment or prior art of the utility model clearer, the following will briefly introduce the drawings needed to be used in the specific embodiment or prior art description. In all drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0018] Figure 1 It is the whole structure section schematic view of the utility model.

[0019] Figure 2 It is the annular filter piece overhead structure section schematic view of the utility model.

[0020] Figure 3 It is the laminated netless filter three-dimensional structure schematic view of the utility model.

[0021] Figure 4 It is the utility model Figure 1 A place enlarged structure schematic view.

[0022] [Symbol]

[0023] 1, filter cartridge; 2, L-shaped feed pipe; 3, hopper; 4, annular filter sheet; 401, filter hole; 402, through hole; 403, connecting bolt; 5, bearing; 6, impurity discharge pipe; 7, support; 8, first motor; 9, small screw rod; 10, large screw rod; 11, guide plate; 12, discharge pipe; 13, second motor; 1301, gear; 14, gear ring. DETAILED DESCRIPTION

[0024] EMBODIMENT

[0025] As Figures 1-4 shown, the embodiment of the utility model provides a kind of for plastic extrusion filtering self-cleaning laminated netless filter, including filter cartridge 1, L-shaped feed pipe 2, hopper 3, laminated netless filter, bearing 5 and impurity discharge pipe 6, the upper surface left side of filter cartridge 1 is provided with L-shaped feed pipe 2, the top of L-shaped feed pipe 2 is provided with hopper 3, the bottom of L-shaped feed pipe 2 is rotatably provided with laminated netless filter by bearing, the right end of laminated netless filter is rotatably arranged in the right side of filter cartridge 1 by bearing, the right end of filter cartridge 1 is provided with impurity discharge pipe 6, the upper portion of impurity discharge pipe 6 is equipped with support 7, the right side surface of support 7 is fixedly installed with first motor 8, the output end of first motor 8 is equipped with small screw rod 9, the left end of small screw rod 9 is fixedly provided with large screw rod 10, the left and right sides of filter cartridge 1 are both fixedly provided with guide plate 11, the bottom central portion of filter cartridge 1 is provided with discharge pipe 12, the left side surface of filter cartridge 1 is equipped with drive assembly that drives laminated netless filter rotation.

[0026] By being provided with impurity discharge pipe 6, small screw rod 9 and large screw rod 10, when filtering plastic, hot melt plastic is added by hopper 3, plastic enters laminated netless filter, first motor 8 drives large screw rod 10 and small screw rod 9 to rotate, and drives plastic entering laminated netless filter to right side, laminated netless filter filters hot melt plastic, plastic is discharged along filter hole 401 on laminated netless filter and falls on guide plate 11, and is discharged from discharge pipe 12, impurities are in laminated netless filter and are driven to right side by large screw rod 10, until impurities enter impurity discharge pipe 6, small screw rod 9 drives impurities to move to right side, until it is discharged from the right end of impurity discharge pipe 6, to realize the effect that laminated netless filter is automatically cleaned;

[0027] By setting the driving assembly, when filtering hot melt plastic, the second motor 13 on the driving assembly drives the gear 1301 to rotate, the gear 1301 drives the gear ring 14 to rotate, so that the laminated meshless filter rotates along the L-shaped feeding pipe 2 and the bearing 5, under the action of the rotating centrifugal force of the laminated meshless filter, the hot melt plastic is thrown out of the laminated meshless filter, ensuring that the hot melt plastic is discharged from the filter hole on the laminated meshless filter, preventing the plastic from flowing along the laminated meshless filter to the discharge pipe 6, ensuring the filtering effect, and in the process of rotating the laminated meshless filter driven by the driving assembly, the impurities embedded in the filter hole 401 and the same diameter as the filter hole can be thrown out of the filter hole 401, preventing the filter hole 401 on the laminated meshless filter from being blocked, and ensuring the filtering effect of the laminated meshless filter.

[0028] In this embodiment, the small screw rod 9 matches the discharge pipe 6, the large screw rod 10 matches the central through hole of the laminated meshless filter, and the small screw rod 9 and the large screw rod 10 are respectively located in the discharge pipe 6 and the laminated meshless filter.

[0029] In this embodiment, the small screw rod 9 and the large screw rod 10 have the same thread direction, which facilitates the movement of the filtered impurities to the right side by the large screw rod 10 and the small screw rod 9, and realizes the self-cleaning effect of the laminated meshless filter.

[0030] In this embodiment, the guide plate 11 is provided with two pieces, the two pieces of guide plate 11 are in inverted V shape, and the two pieces of guide plate 11 are below the laminated meshless filter, the through part of the discharge pipe 12 is in the center of the two pieces of guide plate 11, which facilitates the guide of the hot melt plastic filtered by the laminated meshless filter by the guide plate 11, until the plastic is discharged from the discharge pipe 12.

[0031] In this embodiment, the laminated meshless filter includes a plurality of annular filter sheets 4, filter holes 401, through holes 402 and connecting bolts 403, the laminated meshless filter is composed of a plurality of annular filter sheets 4, the plurality of annular filter sheets 4 form a material containing cavity together, a plurality of filter holes 401 are formed on the outer surface of the annular filter sheet 4, a plurality of through holes 402 are formed on the upper and lower sides of the annular filter sheet 4, and the plurality of annular filter sheets 4 are connected by penetrating the through holes 402 through the connecting bolts 403, and the two ends of the connecting bolts 403 are threadedly connected with the nuts.

[0032] In this embodiment, the driving assembly includes a second motor 13 mounted on the bottom of the left side surface of the filter cylinder 1 and a gear ring 14 fixed on the left side of the outer surface of the laminated meshless filter, and the output end of the second motor 13 is provided with a gear 1301.

[0033] In the embodiment, the gear 1301 is engaged with the gear ring 14, facilitating the gear 1301 to drive the gear ring 14 to rotate, achieving the effect of driving the laminated meshless filter to rotate.

[0034] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the concept of the present application, can make a number of deformation and improvement, these should also be considered as the protection scope of the present application, these will not affect the effect and the practicality of the present application.

Claims

1. A self-cleaning laminated meshless filter for plastic extrusion filtration, characterized by: The utility model provides a filter cartridge (1), L -shaped feed pipe (2), hopper (3), laminated netless filter, bearing (5) and bar pipe (6), the upper surface left side of filter cartridge (1) is provided with L -shaped feed pipe (2) through, the top of L -shaped feed pipe (2) is provided with hopper (3) through, the bottom end of L -shaped feed pipe (2) is provided with laminated netless filter rotation through bearing, the right -hand side of the inside of filter cartridge (1) is provided with laminated netless filter rotation through bearing to the right -hand side surface of support (7) of bar pipe (6) upper installation, the first motor (8) of right -hand side surface fixed mounting of support (7), the output of first motor (8) installs small screw rod (9), the left end of small screw rod (9) is fixed with big screw rod (10) and is provided, the left and right sides of filter cartridge (1) are both fixed with guide plate (11), the bottom central of filter cartridge (1) is provided with discharge pipe (12) through, the left side surface of filter cartridge (1) is installed drive assembly of drive laminated netless filter rotation.

2. The self-cleaning, stacked-mesh, screenless filter for plastic extrusion filtration of claim 1, wherein: The small screw rod (9) is matched with the bar pipe (6), the big screw rod (10) is matched with the central through hole of the laminated netless filter, and the small screw rod (9) and the big screw rod (10) are respectively in the bar pipe (6) and the laminated netless filter.

3. The self-cleaning, stackable, screenless filter for plastic extrusion filtration of claim 2, wherein: The small screw rod (9) and the big screw rod (10) have the same screw direction.

4. The self-cleaning, stacked-mesh, screenless filter for plastic extrusion filtration of claim 3, wherein: The guide plate (11) is provided with two, the two guide plates (11) are in inverted eight character shape, and the two guide plates (11) are below the laminated netless filter, and the penetration of the discharge pipe (12) is in the center of the two guide plates (11).

5. The self-cleaning, stacked-mesh, screenless filter for plastic extrusion filtration of claim 4, wherein: The laminated netless filter comprises a plurality of annular filter sheets (4), filter holes (401), through holes (402) and connecting bolts (403), the laminated netless filter is formed by stacking a plurality of annular filter sheets (4), the plurality of annular filter sheets (4) jointly form a material containing cavity, a plurality of filter holes (401) are formed in the outer surface of the annular filter sheet (4), through holes (402) are formed in the upper and lower sides of the annular filter sheet (4), a plurality of annular filter sheets (4) are connected by connecting bolts (403) penetrating the through holes (402), and the two ends of the connecting bolts (403) are threadedly connected with nuts.

6. The self-cleaning, stacked-mesh, screenless filter for plastic extrusion filtration of claim 1, wherein: The drive assembly comprises a second motor (13) mounted on the left side surface of the filter cartridge (1) and a gear ring (14) fixed on the left side of the outer surface of the laminated netless filter, and the output end of the second motor (13) is provided with a gear (1301).

7. The self-cleaning, stackable, screenless filter for plastic extrusion filtration of claim 6, wherein: The gear (1301) and the gear ring (14) are engaged with each other.

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