CN214260954U

CN214260954U - Resin filtering device

Info

Publication number: CN214260954U
Application number: CN202120058295.3U
Authority: CN
Inventors: 孙致平; 张翠英; 孙德松
Original assignee: Changzhou Vocational Institute of Engineering
Current assignee: Jiangsu Bangjie Anti Corrosion Thermal Insulation Technology Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-09-24
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a resin filtering device, which carries out two-stage filtering on resin by arranging a rough filtering unit and a fine filtering unit, has better filtering effect, and can effectively avoid slow filtering or even stagnation caused by the blockage of filtering holes on a rough filtering chamber or a fine filtering chamber by impurities in the resin; the air pump is arranged to provide suction for the device, so that the filtering speed is increased, the resin is filtered too slowly only under the action of gravity in the filtering process, and the filtering efficiency is effectively improved; the sealing ring improves the sealing property between the output shaft of the driving motor and the inner wall of the round hole at the bottom of the coarse filter barrel, and effectively prevents resin from entering the motor chamber to damage the motor; this resin filter equipment structural design adds singly rationally, and the feasibility is high in the preparation implementation, and the practicality is strong, and the filtering process effectively reduces resin extravagant.

Description

Resin filtering device

Technical Field

The utility model relates to a resin production facility technical field, concretely relates to resin filter equipment.

Background

A resin is an organic substance, which has an indeterminate relative molecular weight but is generally high and is solid, medium solid, pseudo-solid, or sometimes liquid at ambient temperature. Broadly, it refers to polymers or prepolymers used as plastic substrates, resins having a softening or melting temperature range, having a tendency to flow under external forces, often shell-like in rupture, generally insoluble in water and soluble in organic solvents, and resins can be classified into natural resins and synthetic resins depending on their origin.

The existing resin filtering device has the advantages of simple structure, no repeated filtering, slow filtering speed, low working efficiency, more waste in the filtering process and low recovery rate. Therefore, the utility model provides a resin filtering device to solve the problem that current resin filtering device work efficiency is low, the resin waste volume is big.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects in the prior art and providing a resin filtering device, which carries out two-stage filtering on the resin by arranging a rough filtering unit and a fine filtering unit, has better filtering effect and can effectively avoid slow filtering or even stagnation caused by the blockage of the filtering holes on the rough filtering chamber or the fine filtering chamber by impurities in the resin; the air pump is arranged to provide suction for the device, so that the filtering speed is increased, the resin is filtered too slowly only under the action of gravity in the filtering process, and the filtering efficiency is effectively improved; the sealing ring improves the sealing property between the output shaft of the driving motor and the inner wall of the round hole at the bottom of the coarse filter barrel, and effectively prevents resin from entering the motor chamber to damage the motor; this resin filter equipment structural design adds singly rationally, and the feasibility is high in the preparation implementation, and the practicality is strong, and the filtering process effectively reduces resin extravagant.

In order to achieve the above object, the technical solution of the present invention is to design a resin filtering apparatus, which comprises a coarse filtering unit, a fine filtering unit and a driving unit, wherein the outer diameter of the coarse filtering unit is smaller than the outer diameter of the fine filtering unit, the coarse filtering unit is coaxially and fixedly arranged on the upper end surface of the fine filtering unit, and the fine filtering unit is coaxially and fixedly arranged on the upper end surface of the driving unit; the coarse filtration unit comprises a feed port, a coarse filtration barrel and a coarse filtration chamber, the coarse filtration chamber is positioned inside the coarse filtration barrel, and the feed port is fixedly arranged at the top of the coarse filtration barrel and communicated with the coarse filtration chamber; the fine filtering unit comprises a fine filtering barrel, a fine filtering chamber with an opening at the upper end, a sealing ring and a discharge port, the fine filtering chamber is positioned in the fine filtering barrel, the upper end of the fine filtering chamber is correspondingly connected with the bottom of the coarse filtering chamber, and the discharge port is fixedly communicated with the outer side wall of the fine filtering barrel; the driving unit comprises a driving motor, a motor switch, a motor chamber, an air pump and an air pump switch, the driving motor is fixedly arranged in the motor chamber, the end part of an output shaft of the driving motor vertically and upwards sequentially penetrates through the round hole at the bottom of the fine filtering barrel, the central through hole at the bottom of the fine filtering chamber and the round hole at the bottom of the coarse filtering barrel and is fixedly connected with the center of the lower end face of the coarse filtering chamber, the sealing ring is fixedly sleeved on the output shaft of the driving motor, the lower end of the sealing ring is rotatably positioned in the round hole at the bottom of the fine filtering barrel, the peripheral wall of the upper end of the sealing ring penetrates through the inner wall of the central through hole at the bottom of the fine filtering chamber and is fixedly arranged on the inner wall of the central through hole at the bottom of the fine filtering barrel, the inlet of the air pump is hermetically connected with the discharge port through a discharge pipe, the outlet of the air pump is externally connected with a discharge pipe, and the motor switch and the air pump switch are arranged on the peripheral side of the upper end face of the coarse filtering barrel; the side wall of the coarse filter chamber is radially provided with a plurality of first filter holes, the side wall of the fine filter chamber is radially provided with a plurality of second filter holes, the bottom of the coarse filter barrel is provided with a plurality of discharge holes, and the inner diameter of each discharge hole is larger than the inner diameter of each first filter hole and larger than the inner diameter of each second filter hole.

The utility model relates to a resin filtering device, through setting up colating unit, fine filtration unit to carry out two-stage filtration with the resin, the filter effect is better, and two-stage filtration can effectively avoid because the impurity in the resin blocks up the filtration pore on the colating chamber or the fine filtration chamber and leads to filtration slowly or even stagnates; the air pump is arranged to provide suction for the device, so that the filtering speed is increased, the resin is filtered too slowly only under the action of gravity in the filtering process, and the filtering efficiency is effectively improved; the sealing ring improves the sealing property between the output shaft of the driving motor and the inner wall of the round hole at the bottom of the coarse filter barrel, and effectively prevents resin from entering the motor chamber to damage the motor; this resin filter equipment structural design adds singly rationally, and the feasibility is high in the preparation implementation, and the practicality is strong, and the filtering process effectively reduces resin extravagant.

The preferable technical scheme is that the recycling device further comprises a recycling unit, the recycling unit comprises a plurality of first air cylinders, a first extrusion ring, a plurality of second air cylinders and a second extrusion ring, the first extrusion ring is slidably sleeved on the outer peripheral side of the coarse filter chamber, the first air cylinders are fixedly arranged on the outer peripheral side of the upper end face of the coarse filter barrel at intervals, the first extrusion ring is a plurality of the piston end portion of the first air cylinder vertically and downwards movably penetrates through the limiting hole in the upper end face of the coarse filter barrel and is fixedly connected with the upper end face of the first extrusion ring, the second extrusion ring is slidably sleeved on the outer peripheral side of the fine filter chamber, the second air cylinder is fixedly arranged on the outer peripheral side of the upper end face of the fine filter barrel at intervals, and the second air cylinder is vertically and downwards movably penetrates through the positioning hole in the upper end face of the fine filter barrel and is fixedly connected with the upper end face of the second extrusion ring. After the filtration is finished, the first cylinder can drive the first extrusion ring to scrape off residual resin adhered to the outside of the coarse filtration chamber, and the scraped resin enters the fine filtration chamber to be continuously filtered; the second cylinder can drive the second extrusion ring to scrape off residual resin adhered to the outside of the fine filter chamber, and the scraped resin is discharged and collected under the negative pressure action of the air pump, so that the recovery rate of the resin is further improved, and waste is avoided.

According to a further preferred technical scheme, the recovery unit further comprises a plurality of first telescopic columns and a plurality of second telescopic columns, the first telescopic columns are vertically and fixedly arranged at the end parts of the pistons of the first cylinders in a one-to-one correspondence manner, and the first extrusion rings are fixedly arranged at the lower end parts of the first telescopic columns; the plurality of second telescopic columns are vertically and fixedly arranged at the end parts of the pistons of the plurality of second cylinders in a one-to-one correspondence mode, and the second extrusion rings are fixedly arranged at the lower end parts of the plurality of second telescopic columns. The first flexible post has increaseed the longitudinal motion stroke of first extrusion ring, and the second flexible post has increaseed the longitudinal motion stroke of second extrusion ring to improved the recovery efficiency of first extrusion ring to resin on the rough filter chamber outer wall and the recovery efficiency of second extrusion ring to resin on the smart filter chamber outer wall, further guaranteed the device to the rate of recovery of resin.

Further preferred technical scheme still includes the temperature control unit, the temperature control unit includes first temperature control subassembly, second temperature control subassembly and temperature controller, first temperature control subassembly cover is located the periphery side of coarse strainer, second temperature control subassembly cover is located the periphery side of smart strainer, first temperature control subassembly and second temperature control subassembly all are connected with temperature controller, still be equipped with the temperature display screen on the temperature controller. The temperature control assembly enables the rough filtering unit and the fine filtering unit to keep proper working temperature, and resin is effectively prevented from being condensed into blocks at cold temperature in winter, so that the working efficiency of the device is effectively guaranteed.

Further, according to a preferable technical scheme, a temperature setting knob is arranged on the temperature controller. The working temperature of the temperature control component can be flexibly set according to the characteristics of the resin to be filtered so as to ensure that the device is at a proper working temperature in the working process.

Further preferred technical scheme still, the coarse filtration unit still includes the connecting block, the connecting block set firmly in the bottom center of coarse filtration chamber, fine filtration chamber pass through the connecting block with driving motor's output shaft end fixed connection.

The utility model has the advantages and the beneficial effects that:

1. the utility model relates to a resin filtering device, through setting up colating unit, fine filtration unit to carry out two-stage filtration with the resin, the filter effect is better, and two-stage filtration can effectively avoid because the impurity in the resin blocks up the filtration pore on the colating chamber or the fine filtration chamber and leads to filtration slowly or even stagnates; the air pump is arranged to provide suction for the device, so that the filtering speed is increased, the resin is filtered too slowly only under the action of gravity in the filtering process, and the filtering efficiency is effectively improved; the sealing ring improves the sealing property between the output shaft of the driving motor and the inner wall of the round hole at the bottom of the coarse filter barrel, and effectively prevents resin from entering the motor chamber to damage the motor; this resin filter equipment structural design adds singly rationally, and the feasibility is high in the preparation implementation, and the practicality is strong, and the filtering process effectively reduces resin extravagant.

2. Still include the recovery unit, the recovery unit includes a plurality of first cylinders, first extrusion ring, a plurality of second cylinders, second extrusion ring, first extrusion ring sliding sleeve is located the periphery side of coarse strainer chamber, and is a plurality of first cylinder ring to the interval set firmly in the periphery side of coarse strainer upper end face, it is a plurality of the equal vertical downward activity of piston end of first cylinder runs through the spacing hole of coarse strainer upper end face and with the up end fixed connection of first extrusion ring, second extrusion ring sliding sleeve is located the periphery side of smart straining chamber, and is a plurality of second cylinder ring to the interval set firmly in the periphery side of smart straining barrel upper end face, it is a plurality of the equal vertical downward activity of piston end of second cylinder runs through the locating hole of smart straining barrel upper end face and with the up end fixed connection of second extrusion ring. After the filtration is finished, the first cylinder can drive the first extrusion ring to scrape off residual resin adhered to the outside of the coarse filtration chamber, and the scraped resin enters the fine filtration chamber to be continuously filtered; the second cylinder can drive the second extrusion ring to scrape off residual resin adhered to the outside of the fine filter chamber, and the scraped resin is discharged and collected under the negative pressure action of the air pump, so that the recovery rate of the resin is further improved, and waste is avoided.

3. The recovery unit further comprises a plurality of first telescopic columns and a plurality of second telescopic columns, the first telescopic columns are vertically and fixedly arranged at the end parts of the pistons of the first cylinders in a one-to-one correspondence mode, and the first extrusion rings are fixedly arranged at the lower end parts of the first telescopic columns; the plurality of second telescopic columns are vertically and fixedly arranged at the end parts of the pistons of the plurality of second cylinders in a one-to-one correspondence mode, and the second extrusion rings are fixedly arranged at the lower end parts of the plurality of second telescopic columns. The first flexible post has increaseed the longitudinal motion stroke of first extrusion ring, and the second flexible post has increaseed the longitudinal motion stroke of second extrusion ring to improved the recovery efficiency of first extrusion ring to resin on the rough filter chamber outer wall and the recovery efficiency of second extrusion ring to resin on the smart filter chamber outer wall, further guaranteed the device to the rate of recovery of resin.

4. Still include the temperature control unit, the temperature control unit includes first temperature control subassembly, second temperature control subassembly and temperature controller, first temperature control subassembly cover is located the periphery side of coarse strainer, second temperature control subassembly cover is located the periphery side of smart strainer, first temperature control subassembly and second temperature control subassembly all are connected with temperature controller, still be equipped with the temperature display screen on the temperature controller. The temperature control assembly enables the rough filtering unit and the fine filtering unit to keep proper working temperature, and resin is effectively prevented from being condensed into blocks at cold temperature in winter, so that the working efficiency of the device is effectively guaranteed.

5. And a temperature setting knob is arranged on the temperature controller. The working temperature of the temperature control component can be flexibly set according to the characteristics of the resin to be filtered so as to ensure that the device is at a proper working temperature in the working process.

Drawings

Fig. 1 is a schematic perspective view of a resin filtering apparatus according to the present invention;

FIG. 2 is a schematic view of a resin filtering apparatus according to the present invention;

FIG. 3 is a schematic cross-sectional view of the resin filter device of FIG. 2 in the direction B-B;

FIG. 4 is a left side view schematically illustrating the structure of a resin filtering device according to the present invention;

fig. 5 is a schematic sectional view of the resin filtering apparatus of fig. 4 in the direction F-F.

In the figure: 100. a coarse filtration unit; 110. a feed inlet; 120. a coarse filter barrel; 130. a coarse filtration chamber; 140. connecting blocks; 150. a discharge hole; 200. a fine filtering unit; 210. a fine filtering barrel; 220. a fine filtering chamber; 230. a seal ring; 240. a discharge port; 250. a material pumping pipe; 300. a drive unit; 310. a drive motor; 320. a motor switch; 330. a motor chamber; 340. an air pump; 350. an air pump switch; 360. a discharge pipe; 400. a recovery unit; 410. a first cylinder; 420. a first telescopic column; 430. a first extrusion ring; 440. a second cylinder; 450. a second telescopic column; 460. a second extrusion ring; 500. a temperature control unit; 510. a first temperature control assembly; 520. a second temperature control assembly; 530. a temperature controller; 540. and a temperature display screen.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Examples

As shown in fig. 1 to 5, the present invention relates to a resin filtering device, which comprises a coarse filtering unit 100, a fine filtering unit 200 and a driving unit 300, wherein the outer diameter of the coarse filtering unit 100 is smaller than the outer diameter of the fine filtering unit 200, the coarse filtering unit 100 is coaxially and fixedly arranged on the upper end surface of the fine filtering unit 200, and the fine filtering unit 200 is coaxially and fixedly arranged on the upper end surface of the driving unit 300; the coarse filtering unit 100 comprises a feed inlet 110, a coarse filtering barrel 120 and a coarse filtering chamber 130, the coarse filtering chamber 130 is located inside the coarse filtering barrel 120, and the feed inlet 110 is fixedly arranged at the top of the coarse filtering barrel 120 and is communicated with the coarse filtering chamber 130; the fine filtering unit 200 comprises a fine filtering barrel 210, a fine filtering chamber 220 with an open upper end, a sealing ring 230 and a discharge port 240, wherein the fine filtering chamber 220 is located inside the fine filtering barrel 210, the upper end of the fine filtering chamber 220 is correspondingly connected with the bottom of the coarse filtering chamber 130, and the discharge port 240 is fixedly arranged on the outer side wall of the fine filtering barrel 210 in a penetrating manner; the driving unit 300 includes a driving motor 310, a motor switch 320, a motor chamber 330, an air pump 340 and an air pump switch 350, the driving motor 310 is fixedly arranged in the motor chamber 330, the end part of the output shaft of the driving motor 310 vertically and upwards sequentially penetrates through the round hole at the bottom of the fine filtering barrel 210, the central through hole at the bottom of the fine filtering chamber 220 and the round hole at the bottom of the coarse filtering barrel 120 and is fixedly connected with the center of the lower end face of the coarse filtering chamber 130, the sealing ring 230 is fixedly sleeved on the output shaft of the driving motor 310, the lower end of the sealing ring 230 is rotatably positioned in the circular hole at the bottom of the fine filtering barrel 210, the peripheral wall at the upper end of the sealing ring 230 is fixedly penetrated on the inner wall of the central through hole at the bottom of the fine filtering chamber 220, the inlet of the air pump 340 is hermetically connected with the discharge hole 240 through a pumping pipe 250, the outlet of the air pump 340 is externally connected with a discharge pipe 360, and the motor switch 320 and the air pump switch 350 are arranged on the outer peripheral side of the upper end face of the coarse filter barrel 120; the side wall of the coarse filtering chamber 130 is radially provided with a plurality of first filtering holes, the side wall of the fine filtering chamber 220 is radially provided with a plurality of second filtering holes, the bottom of the coarse filtering barrel 120 is provided with a plurality of discharging holes 150, and the inner diameter of each discharging hole 150 is larger than the inner diameter of each first filtering hole and larger than the inner diameter of each second filtering hole. The type of the driving motor 310 is YE2-132S 1-2.

Preferably, the recycling unit 400 is further included, the recycling unit 400 includes a plurality of first air cylinders 410, a first pressing ring 430, a plurality of second air cylinders 440, a second pressing ring 460, the first squeezing ring 430 is slidably sleeved on the outer peripheral side of the coarse filtering chamber 130, the plurality of first air cylinders 410 are fixedly arranged on the outer peripheral side of the upper end surface of the coarse filtering barrel 120 at circumferential intervals, the piston ends of the plurality of first air cylinders 410 vertically and downwards movably penetrate through the limiting hole on the upper end surface of the coarse filtering barrel 120 and are fixedly connected with the upper end surface of the first squeezing ring 430, the second extrusion ring 460 is slidably sleeved on the outer peripheral side of the fine filtering chamber 220, the plurality of second cylinders 440 are circumferentially and fixedly arranged on the outer peripheral side of the upper end surface of the fine filtering barrel 210 at intervals, and the piston ends of the plurality of second cylinders 440 vertically and downwardly movably penetrate through the positioning holes on the upper end surface of the fine filtering barrel 210 and are fixedly connected with the upper end surface of the second extrusion ring 460.

Preferably, the recovery unit 400 further includes a plurality of first telescopic columns 420 and a plurality of second telescopic columns 450, the plurality of first telescopic columns 420 are vertically and fixedly arranged at the end portions of the pistons of the plurality of first cylinders 410 in a one-to-one correspondence manner, and the first squeezing ring 430 is fixedly arranged at the lower end portions of the plurality of first telescopic columns 420; the plurality of second telescopic columns 450 are vertically and fixedly arranged at the end parts of the pistons of the plurality of second cylinders 440 in a one-to-one correspondence manner, and the second extrusion rings 460 are fixedly arranged at the lower end parts of the plurality of second telescopic columns 450.

Further preferably, the temperature control device further comprises a temperature control unit 500, the temperature control unit 500 comprises a first temperature control assembly 510, a second temperature control assembly 520 and a temperature controller 530, the first temperature control assembly 510 is sleeved on the outer peripheral side of the coarse filter barrel 120, the second temperature control assembly 520 is sleeved on the outer peripheral side of the fine filter barrel 210, the first temperature control assembly 510 and the second temperature control assembly 520 are both connected with the temperature controller 530, and the temperature controller 530 is further provided with a temperature display screen 540.

Further preferably, a temperature setting knob is provided on the temperature controller 530.

Further preferably, the rough filtering unit 100 further includes a connecting block 140, the connecting block 140 is fixedly disposed at the center of the bottom of the rough filtering chamber 130, and the fine filtering chamber 220 is fixedly connected to the end of the output shaft of the driving motor 310 through the connecting block 140.

The utility model relates to a resin filter equipment's theory of operation:

setting the working temperature T1 of the coarse filter unit 100 and the fine filter unit 200 through a temperature setting knob on the temperature controller 530, and turning on a heating switch; when the temperature displayed by the temperature display screen 540 reaches a set temperature value T1, adding the resin raw material to be filtered into the rough filtering chamber 130 from the feeding hole 110, starting the motor switch 320 and the air pump switch 350, driving the output shaft of the motor 310 to drive the rough filtering chamber 130 and the fine filtering chamber 220 to rotate at a high speed, throwing the resin raw material in the rough filtering chamber 130 out of the first filtering hole under the action of centrifugal force, and allowing the primarily filtered resin to enter the fine filtering chamber 220 through the discharging hole 150; the resin entering the fine filtering chamber 220 is thrown out from the second filtering hole under the action of centrifugal force, and the resin after the secondary filtering is discharged through the material pumping pipe 250, the air pump 340 and the material discharging pipe 360 in sequence and then collected to obtain the filtered resin; after the resin filtration is completed, the first air cylinder 410 and the second air cylinder 440 are started, the first telescopic column 420 drives the first extrusion ring 430 downwards to move downwards and scrape off the resin adhered to the outer side wall of the coarse filtration chamber 130 and enter the fine filtration chamber 220, the second air cylinder 440 drives the second extrusion ring 460 downwards to move downwards and scrape off the resin adhered to the outer side wall of the fine filtration chamber 220, and the scraped resin is discharged through the discharge pipe 360 and collected under the action of negative pressure generated by the air pump 340; finally, the motor switch 320, the air pump switch 350, the heating switch on the temperature controller 530, the first air cylinder 410 and the second air cylinder 440 are closed, the device is opened, and impurities and large-particle resin remained in the coarse filter chamber 130 and the fine filter chamber 220 are poured and collected.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A resin filtering device is characterized by comprising a coarse filtering unit (100), a fine filtering unit (200) and a driving unit (300), wherein the outer diameter of the coarse filtering unit (100) is smaller than that of the fine filtering unit (200), the coarse filtering unit (100) is coaxially and fixedly arranged on the upper end face of the fine filtering unit (200), and the fine filtering unit (200) is coaxially and fixedly arranged on the upper end face of the driving unit (300); the coarse filtering unit (100) comprises a feeding hole (110), a coarse filtering barrel (120) and a coarse filtering chamber (130), the coarse filtering chamber (130) is positioned inside the coarse filtering barrel (120), and the feeding hole (110) is fixedly arranged at the top of the coarse filtering barrel (120) and is communicated with the coarse filtering chamber (130); the fine filtering unit (200) comprises a fine filtering barrel (210), a fine filtering chamber (220) with an opening at the upper end, a sealing ring (230) and a discharging port (240), the fine filtering chamber (220) is positioned inside the fine filtering barrel (210), the upper end of the fine filtering chamber (220) is correspondingly connected with the bottom of the coarse filtering chamber (130), and the discharging port (240) is fixedly arranged on the outer side wall of the fine filtering barrel (210) in a penetrating way; the drive unit (300) comprises a drive motor (310), a motor switch (320), a motor chamber (330), an air pump (340) and an air pump switch (350), wherein the drive motor (310) is fixedly arranged in the motor chamber (330), the end part of an output shaft of the drive motor (310) vertically upwards sequentially penetrates through a round hole at the bottom of the fine filtering barrel (210), a central through hole at the bottom of the fine filtering chamber (220) and a round hole at the bottom of the coarse filtering barrel (120) and is fixedly connected with the center of the lower end face of the coarse filtering chamber (130), the sealing ring (230) is fixedly sleeved on the output shaft of the drive motor (310), the lower end of the sealing ring (230) rotates and is positioned in the round hole at the bottom of the fine filtering barrel (210), the peripheral wall at the upper end of the sealing ring (230) penetrates and is fixedly arranged on the inner wall of the central through hole at the bottom of the fine filtering chamber (220), the inlet of the air pump (340) is hermetically connected with the discharge hole (240) through a pumping pipe (250), the outlet of the air pump (340) is externally connected with a discharge pipe (360), and the motor switch (320) and the air pump switch (350) are arranged on the outer peripheral side of the upper end face of the coarse filter barrel (120); the side wall of the coarse filtering chamber (130) is radially provided with a plurality of first filtering holes, the side wall of the fine filtering chamber (220) is radially provided with a plurality of second filtering holes, the bottom of the coarse filtering barrel (120) is provided with a plurality of discharging holes (150), and the inner diameter of each discharging hole (150) is larger than that of each first filtering hole and larger than that of each second filtering hole.

2. The resin filtering device according to claim 1, further comprising a recycling unit (400), wherein the recycling unit (400) comprises a plurality of first air cylinders (410), a plurality of first pressing rings (430), a plurality of second air cylinders (440), and a plurality of second pressing rings (460), the first pressing rings (430) are slidably sleeved on the outer peripheral side of the coarse filtering chamber (130), the plurality of first air cylinders (410) are circumferentially and fixedly arranged on the outer peripheral side of the upper end surface of the coarse filtering barrel (120) at intervals, the piston ends of the plurality of first air cylinders (410) vertically and downwardly move to penetrate through the limiting holes on the upper end surface of the coarse filtering barrel (120) and are fixedly connected with the upper end surface of the first pressing ring (430), the second pressing rings (460) are slidably sleeved on the outer peripheral side of the fine filtering chamber (220), the plurality of second air cylinders (440) are circumferentially and fixedly arranged on the outer peripheral side of the upper end surface of the fine filtering barrel (210) at intervals, the end parts of the pistons of the second cylinders (440) vertically and downwards movably penetrate through the positioning holes in the upper end face of the fine filtering barrel (210) and are fixedly connected with the upper end face of the second extrusion ring (460).

3. The resin filtering device according to claim 2, wherein the recovery unit (400) further comprises a plurality of first telescopic columns (420) and a plurality of second telescopic columns (450), the plurality of first telescopic columns (420) are vertically and fixedly arranged at the piston ends of the plurality of first cylinders (410) in a one-to-one correspondence manner, and the first extrusion ring (430) is fixedly arranged at the lower end parts of the plurality of first telescopic columns (420); the plurality of second telescopic columns (450) are vertically and fixedly arranged at the end parts of the pistons of the plurality of second cylinders (440) in a one-to-one correspondence manner, and the second extrusion rings (460) are fixedly arranged at the lower end parts of the plurality of second telescopic columns (450).

4. The resin filtering apparatus according to claim 3, further comprising a temperature control unit (500), wherein the temperature control unit (500) comprises a first temperature control assembly (510), a second temperature control assembly (520) and a temperature controller (530), the first temperature control assembly (510) is sleeved on the outer periphery of the coarse filtering barrel (120), the second temperature control assembly (520) is sleeved on the outer periphery of the fine filtering barrel (210), the first temperature control assembly (510) and the second temperature control assembly (520) are both connected with the temperature controller (530), and the temperature controller (530) is further provided with a temperature display screen (540).

5. The resin filter device according to claim 4, wherein a temperature setting knob is provided on the temperature controller (530).

6. The resin filtering apparatus as recited in claim 5, wherein the coarse filtering unit (100) further includes a connection block (140), the connection block (140) is fixedly disposed at a bottom center of the coarse filtering chamber (130), and the fine filtering chamber (220) is fixedly connected to an output shaft end of the driving motor (310) through the connection block (140).