Filter screen quick-release structure for filtering of extruding machine

Abstract

The utility model discloses a filter screen quick release structure for filtering of an extruding machine, which comprises a filter head arranged in a fluid channel of the extruding machine, a cavity is arranged in the filter head, filter holes are arranged on the inner wall of the cavity, fluid in the extruding machine passes through the filter holes and flows to the outer side of the filter head from the cavity of the filter head, and the filter screen quick release structure is arranged on the outer side of the filter head. A filter screen is further arranged in the cavity, the filter screen is attached to the inner wall of the cavity, and the diameter of the filter screen for filtering is smaller than that of the filter holes. According to the utility model, solid impurities in a melt can be filtered more finely, the extruder is prevented from being influenced by non-molten solid impurities, and the production is more convenient due to the quick-release filter screen structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to spinning extruder masterbatch solvent filtration technology, concretely to a filter screen quick release structure for extruder filter. BACKGROUND

[0002] When the spinning extruder works, the plastic masterbatch needs to be completely melted into a solvent, then pass through the fluid channel in the extruder, and finally be sprayed out as spinning through the spinneret. During the process of the above-mentioned plastic masterbatch from being melted into a melt to being sprayed out as spinning at the spinneret, due to the open space, the worker may accidentally drop small key chains or screw fittings and other metals that cannot be high-temperature melted into the melt during the operation. After the non-melting solid objects fall into the melt, it may at least affect the production progress, and at most cause damage to the extruder, and even threaten the work safety of the production worker. Therefore, a filtering device installed in the spinning extruder is needed to filter the non-melting solid objects in the melt, and the filtering effect of the filtering device needs to be convenient and easy to install. SUMMARY

[0003] The utility model aims at providing a filter screen quick release structure for extruder filter, which can filter the solid impurities in the melt more carefully, prevent the extruder from being affected by the non-melting solid impurities, and make the production more convenient due to the quick release filter screen structure.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a filter screen quick release structure for extruder filter, which comprises a filter head arranged in the fluid channel of the extruder, a cavity is arranged in the filter head, a filter hole is arranged on the inner wall of the cavity, the fluid in the extruder passes through the filter hole and flows from the cavity of the filter head to the outside of the filter head, a filter screen is further arranged in the cavity, the filter screen is attached to the inner wall of the cavity, and the filter aperture of the filter screen is smaller than the filter hole.

[0005] Compared with the prior art, the filter screen quick release structure for extruder filter adopting the above-mentioned technical scheme has the following beneficial effects:

[0006] I. The filter screen quick release structure for extruder filter adopting the utility model adopts the cavity structure for the filter head, the filter hole is arranged on the inner wall of the cavity, and the melted fluid can be filtered through the filter hole on the inner wall of the cavity after flowing into the cavity from the opening. Compared with the traditional planar filter piece arranged in the fluid channel, the cavity and the filter hole arranged on the inner wall of the cavity increase the filtering area of the fluid and reduce the influence of the filter head on the fluid flow rate after being arranged.

[0007] II. The cavity of the filter head is provided with a filter screen with a smaller aperture, the filter screen can filter out solid impurities with a smaller diameter that are insoluble in the melted fluid, and the filtering quality is improved.

[0008] Preferably, the filter screen is arranged in a cylindrical shape, and a gap is arranged on the filter screen to facilitate disassembly of the filter screen.

[0009] The filter screen is detachably arranged relative to the filter head to facilitate inspection and maintenance during production and processing.

[0010] Preferably, a fixing assembly is arranged at the gap, the fixing assembly comprises a fixing rod and a fixing hook, the fixing rod and the fixing hook are arranged on the filter screen at two sides of the gap, a through slot is arranged at a position where the fixing rod is connected to the filter screen, and the position of the through slot corresponds to the position of the fixing hook.

[0011] The filter screen arranged in a cylindrical shape is provided with a fixing rod and a fixing hook to facilitate fixation of the filter screen in the filter head.

[0012] Preferably, the filter head is provided with an opening for the fluid to flow from the fluid channel into the cavity, and two ends of the filter screen are an inner end arranged close to the inside of the filter head and a fixed end arranged close to the opening.

[0013] The opening facilitates arrangement of the filter head and the fluid channel and facilitates fluid flow.

[0014] Preferably, a recess is arranged on the inner wall of the cavity, and a fixing piece is arranged on the fixed end of the filter screen, the fixing piece is arranged on the outer periphery of the filter screen, and the fixing piece is perpendicular to the filter screen, and when the filter screen is fixed in the cavity, the fixing piece is inserted into the recess.

[0015] The fixing piece and the recess facilitate fixation of the filter screen in the cavity and prevent the filter screen from sliding out of the opening.

[0016] Preferably, a plurality of fixing pieces are arranged.

[0017] The plurality of fixing pieces increase the fixation effect of the filter screen in the cavity and make the fixation more stable.

[0018] Preferably, a positioning rod is further arranged on the inner end of the filter screen, the positioning rod is integrally arranged with the fixing rod, a positioning hole is arranged at the bottom of the cavity, and when the filter screen is arranged in the cavity, the positioning rod is inserted into the positioning hole.

[0019] The positioning rod and the positioning hole prevent the filter screen from rotating after being fixed in the cavity and affect the filtering effect.

[0020] Preferably, the filter screen adopts a filter pore size of 10 to 20. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic drawing of the embodiment of the filter screen quick release structure for the extruder filter.

[0022] Figure 2 It is the cross section structure schematic drawing of the filter head in the extruder in the embodiment.

[0023] Figure 3 It is the explosion schematic drawing of the filter head and the filter screen in the embodiment.

[0024] Figure 4 It is the half cut structure schematic drawing of the filter head in the embodiment.

[0025] Figure 5 It is the structure schematic drawing of the filter screen in the embodiment.

[0026] Reference signs: 1, extruder; 11, fluid channel; 3, filter head; 30, cavity; 31, opening; 33, filter hole; 34, embedding groove; 35, positioning hole; 4, filter screen; 41, notch; 42, through groove; 43, fixed sheet; 44, positioning rod; 51, fixed rod; 52, fixed hook. DETAILED DESCRIPTION

[0027] The utility model will be further described in connection with the drawings.

[0028] As Figures 1 to 3 The filter screen quick release structure of the extruder 1 shown in the figure, including the filter head 3 that is arranged in the fluid channel 11 of the extruder 1, the cavity 30 is arranged in the filter head 3, the inner wall of the cavity 30 is equipped with filter hole 33, the fluid in the extruder 1 passes through filter hole 33, from the cavity 30 of filter head 3 to the outside of filter head 3, the cavity 30 is also equipped with filter screen 4, the filter screen 4 is attached to the inner wall of the cavity 30 and is arranged, the filter screen 4 is less than the aperture of filter hole 33.

[0029] As Figure 2 It is the cross section structure schematic drawing of the filter head 3 in the extruder 1 in the embodiment, the filter head 3 is equipped with the opening 31 for the fluid from the fluid channel 11 into the cavity 30, and the two ends of the filter screen 4 are respectively the internal end close to the inside of the filter head 3 and the fixed end close to the opening 31.The fluid enters the cavity 30 of filter head 3 from the opening 31 of fluid channel 11, and the fluid first passes through filter screen 4 and filter hole 33 on the filter head and flows out from the other side of fluid channel 11, to complete the filtration of solid impurities in the fluid.

[0030] In the embodiment, the filter screen 4 is arranged in a cylindrical shape, and the filter screen 4 is provided with notches 41 for easy disassembly of the filter screen 4, and the notches 41 are arranged along the length direction of the filter screen 4. Figure 5As shown, the notch 41 is provided with a fixing assembly, which includes a fixing rod 51 and a fixing hook 52, and the fixing rod 51 and the fixing hook 52 are respectively arranged on the filter screen 4 at both sides of the notch 41, and a through slot 42 is arranged at the connecting position between the fixing rod 51 and the filter screen 4, and the position of the through slot 42 corresponds to the position of the fixing hook 52.

[0031] A recessed groove 34 is arranged on the inner wall of the cavity 30, and a fixing piece 43 is arranged on the fixed end of the filter screen 4, and the fixing piece 43 is arranged on the outer periphery of the filter screen 4 and is perpendicular to the filter screen, and when the filter screen 4 is fixed in the cavity 30, the fixing piece 43 is inserted into the recessed groove 34. The fixing piece 43 is provided in plurality, and the plurality of fixing pieces 43 are uniformly and spacedly arranged.

[0032] As shown in the drawings, the filter head 3 is provided with a cavity 30, and the cavity 30 is arranged on the top of the filter head 3, and the cavity 30 is provided with a notch 41, and the notch 41 is arranged on the outer periphery of the cavity 30. Figure 4 As shown, the filter head 3 is provided with a cavity 30, and the cavity 30 is arranged on the top of the filter head 3, and the cavity 30 is provided with a notch 41, and the notch 41 is arranged on the outer periphery of the cavity 30.

[0033] In the embodiment, the filter screen 4 can adopt a structure of punching or iron wire mesh, and a filter pore diameter of 10-20 meshes is adopted.

[0034] The installation process of the filter screen 4 in the cavity 30 in the embodiment will be further described below.

[0035] Before the filter screen 4 is installed into the cavity 30, the notch 41 of the filter screen 4 is in an open state, the fixing rod 51 and the fixing hook 52 are not fixed to each other, and the filter screen 4 can be curled.

[0036] After being inserted into the cavity 30, the positioning rod 44 on the filter screen 4 is inserted into the positioning hole 35 in the cavity 30, and the filter screen 4 is first positioned in the cavity 30 to prevent the filter screen 4 from rotating.

[0037] Then, the filter screen 4 is unfolded in the cavity 30, the fixing hook 52 is fixed on the fixing hook 52, and the fixing piece 43 is inserted into the recessed groove 34 to realize the fixation of the filter screen 4.

[0038] The above is the preferred embodiment of the utility model, and for ordinary skilled persons in the art, a number of variations and improvements can be made without departing from the principle of the utility model, and these should also be regarded as the protection range of the utility model.

Claims

1. A filter screen quick release structure for an extruder filter, characterized by: The utility model provides an extrusion machine filter head, which comprises a filter head (3) arranged in a fluid channel (11) of an extrusion machine (1), a cavity (30) is arranged in the filter head (3), a filter hole (33) is arranged on the inner wall of the cavity (30), fluid in the extrusion machine (1) flows from the cavity (30) of the filter head (3) to the outside of the filter head (3) through the filter hole (33), and a filter screen (4) is further arranged in the cavity (30), the filter screen (4) is attached to the inner wall of the cavity (30), and the filter aperture of the filter screen (4) is smaller than the filter hole (33).

2. The filter screen quick release structure for an extruder according to claim 1, characterized in that: The filter screen (4) is in a cylindrical shape, the filter screen (4) is provided with a notch (41) for facilitating the disassembly and assembly of the filter screen (4), and the notch (41) is arranged along the length direction of the filter screen (4).

3. The filter screen quick release structure for an extruder according to claim 2, characterized in that: A fixing assembly is arranged at the notch (41), the fixing assembly comprises a fixing rod (51) and a fixing hook (52), the fixing rod (51) and the fixing hook (52) are arranged on the filter screen (4) on the two sides of the notch (41) respectively, a through groove (42) is arranged at the connecting position between the fixing rod (51) and the filter screen (4), and the position of the through groove (42) corresponds to the position of the fixing hook (52).

4. The filter screen quick release structure for an extruder according to claim 3, characterized in that: The filter head (3) is provided with an opening (31) for the fluid to flow from the fluid channel (11) into the cavity (30), and the two ends of the filter screen (4) are an inner end arranged close to the inside of the filter head (3) and a fixed end arranged close to the opening (31).

5. The filter screen quick release structure for an extruder according to claim 4, characterized in that: The inner wall of the cavity (30) is provided with a recess (34), the fixed end of the filter screen (4) is provided with a fixing piece (43), the fixing piece (43) is arranged on the outer periphery of the filter screen (4), the fixing piece (43) is perpendicular to the filter screen, and when the filter screen (4) is fixed in the cavity (30), the fixing piece (43) is inserted into the recess (34).

6. The filter screen quick release structure for an extruder according to claim 5, characterized in that: The fixing piece (43) is provided with a plurality of fixing pieces (43) arranged at equal intervals.

7. The filter screen quick release structure for an extruder according to claim 5, characterized in that: The inner end of the filter screen (4) is further provided with a positioning rod (44), the positioning rod (44) and the fixing rod (51) are integrally arranged, the bottom of the cavity (30) is provided with a positioning hole (35), and when the filter screen (4) is arranged in the cavity (30), the positioning rod (44) is inserted into the positioning hole (35). The quick-release structure of the filter screen for the extruder according to claim 6 is characterized in that: The filter aperture of the filter screen (4) is 10 to 20.

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