Filtering mechanism of oil press

Abstract

The utility model provides a filter mechanism of an oil press, which is technically characterized by comprising a plurality of supports which are stacked, each support comprises a central block and spokes which extend radially, and each central block is provided with a first through hole; the plurality of groups of filtering devices are clamped between two adjacent layers of brackets, each filtering device comprises first filtering cloth, a supporting net and second filtering cloth which are sequentially overlapped, and further comprises a first blank holder, a second blank holder and a screw which are used for clamping and sealing the peripheral edges of the first filtering cloth and the second filtering cloth; a second through hole is formed in the center of each group of filtering devices, and the peripheral edge of the second through hole of each filtering device is pressed and sealed by the surfaces of the upper and lower layers of central blocks; the center column penetrates through the first through holes and the second through holes and clamps the supports and the filtering devices from the two ends, and the diameter of the center column is smaller than that of the first through holes and the second through holes so that clearance space for oil liquid to flow can be formed. The oil outlet connector abuts against the surface of the center block of the support at the topmost end or the bottommost end. The filtering device is very convenient to mount, dismount and clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil press equipment technical field, specifically point to a kind of filtering mechanism of oil press. BACKGROUND

[0002] In the operation process of small commercial oil press, the pressed vegetable oil contains more impurities, and the whole is relatively turbid, which needs to be further filtered to make the oil clear. A kind of oil filtering device adopts sealed filter barrel, and the oil to be filtered is sent into the filter barrel from the oil inlet by pump to form a certain pressure, then the impurities in the oil are filtered by a plurality of flat filter bag assemblies stacked in the filter barrel, and finally the filtered oil is discharged from the filter cartridge through an oil outlet interface and an oil pipe. Each filter bag assembly includes two layers of filter cloth, a metal support net wrapped between the two layers of filter cloth, and a hemming device for sealing the edges of the two layers of filter cloth. The hemming device includes a metal inner ring and a hemming ring with a C-shaped cross section and an open part. In use, the edges of the two layers of filter cloth are bent and wrapped around the metal inner ring, then the hemming ring is inserted into the position of the metal inner ring to clamp the edges of the filter cloth between the metal inner ring and the hemming ring, and finally the open part of the hemming ring is locked by screws. An oil outlet interface also needs to be installed. Since many flat filter bag assemblies can be stacked in the filter barrel, the filtering area is increased and the filtering efficiency is improved. However, this structure has the following problems: the two layers of filter cloth must be completely wrapped around the metal filter net to form a bag, the fixing of the two layers of filter cloth and the installation of the oil outlet interface are relatively complicated, and the large number of filter bag assemblies makes assembly and disassembly very time-consuming and labor-intensive. Moreover, when the filter cloth is wrapped around the metal inner ring, the mesh size of the filter cloth changes due to different operating forces, which affects the filtering effect. Therefore, there is an urgent need for a filter device that is easy to assemble and disassemble to improve operational convenience and work efficiency and maintain consistent filtering effect. SUMMARY

[0003] The utility model aims at overcoming the deficiencies in the prior art and providing an oil pressing filter device that is easy to assemble and disassemble.

[0004] To achieve the above-mentioned purpose, the utility model employs the following technical solutions:

[0005] A filtering mechanism of an oil press, comprising

[0006] A filter barrel forms a sealed space at the top end through a barrel cover and is provided with an oil inlet and an oil outlet;

[0007] A plurality of supports are stacked in the filter barrel, the support includes a center block and a plurality of spokes extending radially from the periphery of the center block, and the center of the center block has a first through hole;

[0008] a plurality of filter assemblies sandwiched between two adjacent support frames, each filter assembly comprising a first filter cloth, a support net and a second filter cloth stacked in sequence, and a rim assembly clamping and sealing the periphery of the first filter cloth and the second filter cloth, the rim assembly comprising a first rim ring and a second rim ring, and a plurality of screws distributed circumferentially for locking the first rim ring and the second rim ring; each filter assembly is provided with a second through hole in the center, and the periphery of the second through hole of the filter assembly is tightly sealed by the surface of the center block of the two adjacent support frames;

[0009] a center column for passing through the first through hole of each support frame and the second through hole of each filter assembly, and clamping each support frame and each filter assembly from both ends, the diameter of the center column being smaller than the first through hole and the second through hole to form a gap space for the flow of oil;

[0010] and an oil outlet interface for guiding the oil in the gap space to the oil outlet; the oil outlet interface is a cap with an open end, and is sealingly fitted on the center column along the axis, and the open end abuts against the center block surface of the topmost or bottommost support frame to sealingly cover the corresponding gap space outlet inside; and is in communication with the oil outlet through an oil pipe.

[0011] In a preferred embodiment, the filter assembly, the support frame and the filter barrel are concentrically arranged in a circular profile, and the gap between the outer periphery of the filter assembly and the barrel wall is for the flow of oil.

[0012] In a preferred embodiment, the inner diameter of the first rim ring is smaller than the inner diameter of the second rim ring to form an annular step, and the support net is fitted in the step with a matching diameter.

[0013] In a preferred embodiment, the top surface of the support net is substantially flush with the top surface of the second rim ring.

[0014] In a preferred embodiment, the bottom end of the center column has a T-shaped head with a diameter larger than the first through hole, and is a separate structure from the filter barrel.

[0015] In a preferred embodiment, the oil outlet interface abuts against the top surface of the topmost support frame.

[0016] In a preferred embodiment, the top surface of the oil outlet interface is tightly fixed to the top surface of the support frame by a nut threadedly engaged with the center column.

[0017] The utility model discloses a beneficial effect lies in: filter device is for the lamination installation, and the edge of first filter cloth and second filter cloth is locked tightly sealed through first edge ring and second edge ring, compared with prior art, need not to wind the edge of each, also can not make filter cloth's mesh deformation, first through -hole and second through -hole form the clearance space for oil flow between the center column, and the second through -hole periphery is sealed tightly by the surface pressure of two -layer center block, under the pressure effect, the oil liquid that immerses each filter device can only flow into clearance space unification, therefore only needs to set the oil outlet interface in the most top or the most bottom, and need not to set the oil outlet interface alone for each filter device, and the lamination number of filter device can be set at will according to need, above all, this filter mechanism installation and disassembly cleaning are very convenient, and the efficiency is greatly improved, and the filtering effect is stable. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model makes further detailed explanation in combination with specific embodiment and accompanying drawing.

[0019] Fig. 1 It is longitudinal section structure schematic drawing of embodiment filter device whole;

[0020] Fig. 2 It is the structure schematic diagram of support in embodiment;

[0021] Fig. 3 It is the local structure schematic diagram of embodiment filter device longitudinal section;

[0022] Fig. 4 It is the overhead structure schematic diagram of embodiment filter device. PREFERRED EMBODIMENT

[0023] The utility model makes further detailed explanation in combination with specific embodiment and accompanying drawing:

[0024] Reference Figs. 1 to 4 , embodiment with a kind of oil press filter mechanism for example is described, oil liquid squeezed by oil press, it is pumped into filter barrel 1 and is filtered after pumping, the oil liquid of pumping forms larger pressure in filter barrel 1, pressure forces oil liquid to penetrate into filter device 2 inside, and impurity adheres to filter device 2 outside, complete filtering, filtered oil liquid again from filter device 2 inside flows into oil outlet interface 4 through clearance space 3, then is conveyed out filter barrel 1 by oil outlet interface 4.

[0025] Specifically, the filtering mechanism comprises a filtering barrel 1, a top end of which forms a sealed space through a barrel cover 11, and is provided with an oil inlet 12 and an oil outlet 13; a plurality of supports 5 stacked in the filtering barrel 1, the support 5 comprising a central block 51, and a plurality of spokes 52 extending radially from the circumferential side of the central block 51, the central block 51 having a first through hole 53 in the center; a plurality of groups of filtering devices 2 clamped between two adjacent layers of the supports 5, each group of the filtering device 2 comprising a first filter cloth 21, a support net 22 and a second filter cloth 23 stacked in turn, and further comprising a pressure edge assembly clamping and sealing the circumferential edge of the first filter cloth 21 and the second filter cloth 23, the pressure edge assembly comprising an upper first pressure edge ring 241 and a second pressure edge ring 242, and a plurality of screws 243 distributed in the circumferential direction for locking the first pressure edge ring 241 and the second pressure edge ring 242; each group of the filtering device 2 is provided with a second through hole 25, and the circumferential edge of the second through hole 25 of the filtering device 2 is tightly sealed by the surfaces of the upper and lower central blocks 51; a central column 6 for penetrating the first through hole 53 of each support 5 and the second through hole 25 of each filtering device 2, and clamping each support 5 and each filtering device 2 from both ends, the diameter of the central column 6 being smaller than the first through hole 53 and the second through hole 25 to form a gap space 3 for the flow of oil; and an oil outlet interface 4 for guiding the oil in the gap space 3 to the oil outlet 13; the oil outlet interface 4 is in the shape of a cover with one end open, and is sealingly penetrated on the central column 6 along the axial line, and the open end abuts against the surface of the central block 51 of the topmost or bottommost support 5 to sealingly cover the corresponding gap space 3 inside, and communicates with the oil outlet 13 through an oil pipe 41.

[0026] The filtering device 2 is stacked and installed, and the edges of the first filter cloth 21 and the second filter cloth 23 are tightly sealed by the first pressure edge ring 241 and the second pressure edge ring 242, compared with the prior art, without the need for winding and locking the edge one by one, and without deforming the mesh of the filter cloth; the first through hole 53 and the second through hole 25 form a gap space 3 for the flow of oil between the central column 6, and the circumferential edge of the second through hole 25 is tightly sealed by the surfaces of the upper and lower central blocks 51, under the action of pressure, the oil immersed in each filtering device 2 can only flow uniformly into the gap space 3, therefore, only the oil outlet interface 4 needs to be provided at the topmost or bottommost end, without the need for providing an oil outlet interface 4 for each filtering device 2, and the number of stacked filtering devices 2 can be arbitrarily set according to requirements; in summary, the filtering mechanism is very convenient to install, disassemble and clean, the efficiency is greatly improved, and the filtering effect is stable.

[0027] In a preferred embodiment, the filtering device 2, the support 5 and the filtering barrel 1 of the embodiment are concentrically arranged in a circular profile, and the outer periphery of the filtering device 2 and the barrel wall of the filtering barrel 1 have a gap for the flow of oil.

[0028] In a preferred embodiment, the inner diameter of the first edge ring 241 is smaller than the inner diameter of the second edge ring 242, so as to form a stepped annular structure, and the support net 22 is embedded in the stepped annular structure in a diameter-fitting manner. The support net 22 is embedded in the stepped annular structure in a diameter-fitting manner, so as to prevent the support net 22 from moving and affecting the filtering effect.

[0029] In a preferred embodiment, the top surface of the support net 22 is substantially flush with the top surface of the second edge ring 242.

[0030] In a preferred embodiment, the bottom end of the center column 6 has a T-shaped head 61 with a diameter larger than the first through hole 53, and the center column 6 is in a split structure with the filter barrel 1. The filter device 2 and the support 5 can be pulled out of the filter barrel 1 as a whole through the center column 6, which further facilitates the installation and disassembly and cleaning.

[0031] In a preferred embodiment, the oil outlet 4 is arranged on the top surface of the topmost support 5. In this case, the T-shaped head 61 can seal the gap space 3 at the lowest end, so that the filtered oil can only flow upwards into the oil outlet 4, and the oil outlet 4 and the T-shaped head 61 together form a clamping installation for the filter device 2 and the support 5.

[0032] In a preferred embodiment, the top surface of the oil outlet 4 is pressed and fixed to the top surface of the support 5 through a nut 42 which is screwed with the center column 6. In this case, the oil outlet 4 and the center column 6 mainly form a sealing fit. In other embodiments, the oil outlet 4 can be directly screwed with the center column 6 to achieve fixation.

[0033] The above description is not intended to limit the technical scope of the present application in any way. Any modification, equivalent variation and modification made to the above embodiments according to the technical essence of the present application shall still fall within the technical scope of the present application.

Claims

1. A filtering mechanism of an oil expeller, characterized in that, Comprising A filter barrel, a top end of which forms a sealed space through a barrel cover, and is provided with an oil inlet and an oil outlet; A plurality of supports stacked in the filter barrel, the support comprising a center block, and a plurality of spokes extending radially from the periphery of the center block, the center of the center block having a first through hole; A plurality of groups of filter devices clamped between two adjacent layers of the support, each group of filter devices comprising a first filter cloth, a support net and a second filter cloth stacked in turn, and further comprising a pressure edge assembly clamping and sealing the periphery of the first filter cloth and the second filter cloth, the pressure edge assembly comprising a first pressure edge ring and a second pressure edge ring, and a plurality of screws distributed circumferentially for locking the first pressure edge ring and the second pressure edge ring; each group of filter devices is provided with a second through hole, and the periphery of the second through hole of the filter device is tightly sealed by the surfaces of the upper and lower center blocks; A center column for passing through the first through hole of each support and the second through hole of each filter device, and clamping each support and each filter device from both ends, the diameter of the center column being smaller than the first through hole and the second through hole to form a gap space for oil flow; And an oil outlet interface for guiding the oil in the gap space to the oil outlet; the oil outlet interface is a cover with one end open, and is sealingly provided on the center column along the axis, and the open end abuts against the surface of the center block of the topmost or bottommost support to sealingly cover the corresponding gap space outlet inside; and is communicated with the oil outlet through an oil pipe.

2. A filtering mechanism for oil expeller as claimed in claim 1 wherein: The filter device, the support, and the filter barrel are concentrically arranged in a circular profile, and there is a gap for oil flow between the outer periphery of the filter device and the cylinder wall of the filter barrel.

3. A filtering mechanism for oil expeller as claimed in claim 2 wherein: The inner diameter of the first pressure edge ring is smaller than the inner diameter of the second pressure edge ring to form an annular step, and the support net is embedded in the step with a diameter adapted to the step.

4. A filtering mechanism for oil expeller as claimed in claim 3 wherein: The top surface of the support net is substantially flush with the top surface of the second pressure edge ring.

5. A filtering mechanism for oil expeller as claimed in claim 1 wherein: The bottom end of the center column has a T-shaped head with a diameter larger than the first through hole, and is a separate structure from the filter barrel.

6. A filtering mechanism for oil expeller as claimed in claim 5, wherein: The oil outlet interface is abutted on the top surface of the topmost support.

7. A filtering mechanism for oil expeller as claimed in claim 6, wherein: The top surface of the oil outlet interface is tightly fixed to the top surface of the support by a nut threadedly engaged with the center column.

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