A filtering device for synthetic resin production

Abstract

The present invention provides a filtering device for synthetic resin production, which relates to the technical field of synthetic resin production, and comprises: a connecting mechanism, a filtering mechanism, a replacing mechanism and a feeding mechanism; the filtering mechanism is installed on the connecting mechanism; the positioning mechanism is installed on the filtering mechanism, and the positioning mechanism is used to position the filtering mechanism; the replacing mechanism is installed on the connecting mechanism; the feeding mechanism is installed on the top of the connecting mechanism; the switching bracket is rotatably installed on the top of the Y-shaped supporting frame; there are two limit retaining rings in total, and the two limit retaining rings are fixedly installed on the outside of the Y-shaped supporting frame, and the inner sides of the two limit retaining rings are in contact with the switching bracket; the present invention facilitates the staff to switch two filter cottons, realizes the rapid replacement of filter cottons, and improves the production efficiency of synthetic resins; solves the problem that the process of replacing filter materials is relatively cumbersome, and it takes a long time to complete this step, which affects the efficiency of synthetic resin production.

Description

Technical Field

[0001] The present invention belongs to the technical field of synthetic resin production, and more specifically, particularly relates to a filtering device used in synthetic resin production. Background Art

[0002] Synthetic resin is a type of high molecular polymer produced by chemical synthesis. It has various types and a wide range of uses. Its main application areas include packaging, construction, electronics, automobiles, furniture, toys, medical treatment and many other aspects. During the production and processing of synthetic resins, filtration is required to remove internal impurities before further processing.

[0003] The current filtration devices still have the following problems:

[0004] 1. The process of replacing the filter material is rather cumbersome and takes a long time to complete, which affects the efficiency of synthetic resin production;

[0005] 2. During the process of replacing the filter material, the residual liquid cannot be effectively discharged, resulting in a waste of resources. When the old filter material is taken out, the impurities on the inner wall of the filter cartridge cannot be automatically cleaned, resulting in the filtered impurities easily remaining on the inner wall of the filter cartridge;

[0006] 3. It mainly relies on natural gravity to achieve filtering effect, lacks accelerated filtering structure; and the liquid to be treated is prone to sedimentation, which has an adverse effect on subsequent filtering operations. Summary of the invention

[0007] The disclosed embodiment relates to a filtering device for synthetic resin production, which comprises a connecting mechanism, a filtering mechanism, a positioning mechanism, a replacing mechanism and a feeding mechanism; it is convenient for workers to switch between two filter cottons, thereby realizing rapid replacement of the filter cottons and improving the production efficiency of synthetic resins; the liquid in the left filter cotton enters the conical discharge hood through a conical collecting hood and a connecting pipe, thereby avoiding waste of the liquid in the left filter cotton; when the output shaft of the linear electric cylinder B is extended, the extrusion disc B presses the liquid in the annular sealing sleeve, thereby improving the filtering efficiency; the problems of complicated process of replacing the filter material, inability to effectively discharge the residual liquid in the filter material and lack of an accelerating filtering structure are solved.

[0008] In a first aspect of the present disclosure, a filtering device for synthetic resin production is provided, comprising: a connecting mechanism, a filtering mechanism, a positioning mechanism, a replacement mechanism and a feeding mechanism; the filtering mechanism is mounted on the connecting mechanism;

[0009] The positioning mechanism is installed on the filtering mechanism, and the positioning mechanism is used to position the filtering mechanism; the replacement mechanism is installed on the connecting mechanism; and the feeding mechanism is installed on the top of the connecting mechanism;

[0010] The connecting mechanism comprises: a filter frame, a conical feed cover and a conical discharge cover; the conical feed cover is fixedly mounted on the filter frame; the conical discharge cover is fixedly mounted on the filter frame, and the conical discharge cover is located directly below the conical feed cover.

[0011] In at least some embodiments, the connecting mechanism also includes: an annular sealing sleeve, a conical collecting hood and a connecting pipe; the annular sealing sleeve is fixedly mounted inside the conical feed hood, and the top of the annular sealing sleeve is provided with a chamfer; the conical collecting hood is fixedly mounted on the filter frame; the left end of the connecting pipe is fixedly mounted on the conical collecting hood, and the right end of the connecting pipe is fixedly mounted on the conical discharge hood.

[0012] In at least some embodiments, the filtering mechanism includes: a Y-shaped support frame, a switching bracket and a limit retaining ring; the Y-shaped support frame is fixedly mounted on the filtering frame, and two arc-shaped positioning grooves are provided on the Y-shaped support frame; the switching bracket is rotatably mounted on the top of the Y-shaped support frame; there are two limit retaining rings in total, and the two limit retaining rings are fixedly mounted on the outside of the Y-shaped support frame, and the inner sides of the two limit retaining rings are in contact with the switching bracket.

[0013] In at least some embodiments, the filtering mechanism also includes: a circular filter cartridge, a circular support ring and a support mesh disk; there are two circular filter cartridges in total, and the two circular filter cartridges are fixedly mounted on the switching bracket, and the circular filter cartridge on the left is concentrically arranged with the conical collecting cover, and the circular filter cartridge on the right is concentrically arranged with the conical feed cover and the conical discharge cover; there are two circular support rings in total, and the two circular support rings are fixedly mounted inside the two circular filter cartridges; there are two support mesh disks in total, and the two support mesh disks are slidably mounted inside the two circular filter cartridges; the bottoms of the two support mesh disks are in contact with the two circular support rings, and circular through holes are respectively opened at the centers of the two support mesh disks.

[0014] In at least some embodiments, the filtering mechanism also includes: filter cotton, rubber sealing ring and one-way valve; there are two filter cottons in total, and the two filter cottons are slidably installed inside two circular filter cylinders, and the bottoms of the two filter cottons are in contact with two supporting mesh plates; there are four rubber sealing rings in total, and the four rubber sealing rings are installed at the upper and lower ends of the two circular filter cylinders; there are two one-way valves in total, and the two one-way valves are fixedly installed inside the two circular filter cylinders.

[0015] In at least some embodiments, the positioning mechanism includes: a U-shaped positioning seat, a circular positioning pin, a force-bearing circular ring and a support spring A; there are two U-shaped positioning seats, and the two U-shaped positioning seats are fixedly installed on the front and rear sides of the switching bracket; there are two circular positioning pins, and the two circular positioning pins are slidably installed on the two U-shaped positioning seats and the switching bracket; the inner ends of the two circular positioning pins are hemispherical structures, and the inner ends of the two circular positioning pins are inserted into two arc-shaped positioning grooves; there are two force-bearing circular rings, and the two force-bearing circular rings are fixedly installed on the outside of the two circular positioning pins; there are two support springs A, and the two support springs A are sleeved on the outside of the two circular positioning pins, and the two support springs A are located between the two U-shaped positioning seats and the two force-bearing circular rings.

[0016] In at least some embodiments, the replacement mechanism includes: a linear electric cylinder A, an extrusion disc A and a circular needle; the linear electric cylinder A is fixedly mounted on the top of the filter frame; the extrusion disc A is fixedly mounted on the output shaft of the linear electric cylinder A, and the diameter of the extrusion disc A is the same as the inner diameter of the circular filter cylinder; the circular needle is fixedly mounted on the bottom of the extrusion disc A, and the diameter of the circular needle is the same as the aperture of the circular through hole, and the circular needle is concentrically arranged with the circular through hole.

[0017] In at least some embodiments, the replacement mechanism further includes: a movable limit block and a support spring B; there are two movable limit blocks in total, and the two movable limit blocks are slidably installed inside the circular needle; the support spring B is installed inside the circular needle, and the support spring B is located between the two movable limit blocks.

[0018] In at least some embodiments, the feeding mechanism includes: a feeding box, a linear electric cylinder B and a circular driving rod; the feeding box is fixedly mounted on the top of the filter frame, and the bottom of the feeding box is also fixedly connected to the conical feeding cover; the linear electric cylinder B is fixedly mounted on the top of the feeding box; the circular driving rod is fixedly mounted on the output shaft of the linear electric cylinder B, and the circular driving rod is also slidably connected to the feeding box.

[0019] In at least some embodiments, the feeding mechanism further includes: a mixing screen and an extrusion disc B; the mixing screen is fixedly mounted on the outside of the circular driving rod; the extrusion disc B is fixedly mounted on the bottom of the circular driving rod, and the diameter of the extrusion disc B is the same as the inner diameter of the annular sealing sleeve, and the extrusion disc B is concentrically arranged with the annular sealing sleeve.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention facilitates the staff to switch between two filter cottons, realizes the rapid replacement of filter cottons, saves the time of disassembly and installation of filter cottons, reduces downtime, and improves the production efficiency of synthetic resins;

[0022] In addition, the setting of the two circular locating pins plays a positioning role for the switching bracket, making the switching bracket more stable after rotation; when the switching bracket rotates, the Y-shaped support frame pushes the two circular locating pins to move outward, so that the two circular locating pins are automatically separated from the two arc-shaped locating grooves; when the switching bracket rotates half a circle, the two circular locating pins are inserted into the two arc-shaped locating grooves again under the action of the two support springs A.

[0023] 2. In the present invention, when the output shaft of the linear electric cylinder A extends, the squeezing disc A automatically presses the filter cotton on the left side; when the squeezing disc A presses the filter cotton on the left side, the liquid in the filter cotton on the left side enters the conical discharge cover through the conical collecting cover and the connecting pipe, thereby avoiding the waste of the liquid in the filter cotton on the left side;

[0024] In addition, when the output shaft of the linear electric cylinder A is fully extended, the circular needle can be inserted into the circular through hole on the left; the two movable limit blocks can follow the circular needle through the circular through hole on the left; when the output shaft of the linear electric cylinder A is retracted, the two movable limit blocks can drive the supporting mesh plate and the filter cotton to move upward, and when the supporting mesh plate moves upward, it can automatically scrape the inner wall of the circular filter cylinder to avoid residual filtered impurities inside the circular filter cylinder;

[0025] In addition, when the staff presses the two movable limit blocks inward by hand, the supporting mesh plate and the filter cotton are automatically separated from the circular needle under the action of gravity; then the staff places the supporting mesh plate and the new filter cotton in the circular filter cylinder on the left.

[0026] 3. In the present invention, when the output shaft of the linear electric cylinder B extends, the extrusion disc B presses the liquid in the annular sealing sleeve, thereby improving the filtering efficiency; when the output shaft of the linear electric cylinder B is fully retracted, the liquid in the feed box flows to the bottom of the extrusion disc B through the gap between the annular sealing sleeve and the extrusion disc B;

[0027] In addition, when the output shaft of the linear electric cylinder B extends, the mixing screen moves downward; when the output shaft of the linear electric cylinder B contracts, the mixing screen moves upward, which can automatically mix the liquid in the feed box, avoiding the precipitation of impurities and facilitating subsequent filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0029] The drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0030] In the attached picture:

[0031] Figure 1A schematic diagram of the three-dimensional structure of the present invention is shown;

[0032] Figure 2 The present invention is shown Figure 1 Schematic diagram of the bottom perspective structure;

[0033] Figure 3 A structural schematic diagram of the connecting mechanism of the present invention is shown;

[0034] Figure 4 The schematic diagram of the structure of the filtering mechanism and the positioning mechanism of the present invention is shown;

[0035] Figure 5 The present invention is shown Figure 1 Schematic diagram of the central section structure;

[0036] Figure 6 The present invention is shown Figure 5 A schematic diagram of the local enlarged structure of the middle A area;

[0037] Figure 7 The present invention is shown Figure 5 A schematic diagram of the local enlarged structure of the middle B area;

[0038] Figure 8 The present invention is shown Figure 4 Schematic diagram of the central section structure;

[0039] Fig. 9 The present invention is shown Figure 8 Schematic diagram of the local enlarged structure of the middle C area;

[0040] Fig.10 A schematic diagram of the structure of the replacement mechanism of the present invention is shown;

[0041] Fig.11 The present invention is shown Figure 5 A schematic diagram of the local enlarged structure of the D area in the middle;

[0042] Fig.12 The structural schematic diagram of the feeding mechanism of the present invention is shown;

[0043] Fig.13 The present invention is shown Figure 5 Schematic diagram of the local enlarged structure of area E in the middle.

[0044] List of reference numerals:

[0045] 100, connecting mechanism; 101, filtering frame; 102, conical feed cover; 103, conical discharge cover; 104, annular sealing sleeve; 105, conical collecting cover; 106, connecting pipe;

[0046] 200, filter mechanism; 201, Y-shaped support frame; 2011, arc-shaped positioning groove; 202, switching bracket; 203, limit retaining ring; 204, circular filter cartridge; 205, circular support ring; 206, support net plate; 2061, circular through hole; 207, filter cotton; 208, rubber sealing ring; 209, one-way valve;

[0047] 300, positioning mechanism; 301, U-shaped positioning seat; 302, circular positioning pin; 303, force-bearing circular ring; 304, supporting spring A;

[0048] 400, replacement mechanism; 401, linear electric cylinder A; 402, extrusion disc A; 403, round needle; 404, movable limit block; 405, support spring B;

[0049] 500, feeding mechanism; 501, feeding box; 502, linear electric cylinder B; 503, circular driving rod; 504, mixing screen plate; 505, extrusion disc B. DETAILED DESCRIPTION

[0050] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0051] Example: Please refer to Figures 1 to 13 As shown: The present invention provides a filtering device for synthetic resin production, comprising: a connecting mechanism 100, a filtering mechanism 200, a positioning mechanism 300, a replacement mechanism 400 and a feeding mechanism 500; the filtering mechanism 200 is installed on the connecting mechanism 100; the positioning mechanism 300 is installed on the filtering mechanism 200, and the positioning mechanism 300 is used to position the filtering mechanism 200; the replacement mechanism 400 is installed on the connecting mechanism 100; the feeding mechanism 500 is installed on the top of the connecting mechanism 100; the connecting mechanism 100 comprises: a filtering frame 101, a conical feeding cover 102 and a conical discharging cover 103; the conical feeding cover 102 is fixedly installed on the filtering frame 101; the conical discharging cover 103 is fixedly installed on the filtering frame 101, and the conical discharging cover 103 is located directly below the conical feeding cover 102.

[0052] In the present disclosure, Figure 4 , Figure 6 , Figure 7 and Fig. 9As shown, the filtering mechanism 200 includes: a Y-shaped support frame 201, a switching support frame 202 and a limit retaining ring 203; the Y-shaped support frame 201 is fixedly mounted on the filtering frame 101, and two arc-shaped positioning grooves 2011 are provided on the Y-shaped support frame 201; the switching support frame 202 is rotatably mounted on the top of the Y-shaped support frame 201; there are two limit retaining rings 203, and the two limit retaining rings 203 are fixedly mounted on the outside of the Y-shaped support frame 201, and the two limit retaining rings 203 are fixedly mounted on the outside of the Y-shaped support frame 201. The inner side of 03 contacts with the switching bracket 202; the filtering mechanism 200 also includes: a circular filter cartridge 204, a circular support ring 205 and a support mesh plate 206; there are two circular filter cartridges 204, and the two circular filter cartridges 204 are fixedly mounted on the switching bracket 202, and the circular filter cartridge 204 on the left is concentrically arranged with the conical collecting cover 105, and the circular filter cartridge 204 on the right is concentrically arranged with the conical feed cover 102 and the conical discharge cover 103; the circular support ring 2 05, there are two in total, and the two circular support rings 205 are fixedly installed inside the two circular filter cartridges 204; there are two support mesh plates 206, and the two support mesh plates 206 are slidably installed inside the two circular filter cartridges 204; the bottoms of the two support mesh plates 206 are in contact with the two circular support rings 205, and circular through holes 2061 are respectively opened at the centers of the two support mesh plates 206; the filtering mechanism 200 also includes: filter cotton 207, rubber sealing rings 208 and one-way valves 209; there are two filter cottons 207, and the two filter cottons 207 are slidably installed inside the two circular filter cartridges 204, and the bottoms of the two filter cottons 207 are in contact with the two support mesh plates 206; there are four rubber sealing rings 208, and the four rubber sealing rings 208 are installed at the upper and lower ends of the two circular filter cartridges 204; there are two one-way valves 209, and the two one-way valves 209 are fixedly installed inside the two circular filter cartridges 204;

[0053] The positioning mechanism 300 includes: a U-shaped positioning seat 301, a circular positioning pin 302, a force-bearing circular ring 303 and a supporting spring A304; there are two U-shaped positioning seats 301, and the two U-shaped positioning seats 301 are fixedly installed on the front and rear sides of the switching bracket 202; there are two circular positioning pins 302, and the two circular positioning pins 302 are slidably installed on the two U-shaped positioning seats 301 and the switching bracket 202; the inner ends of the two circular positioning pins 302 are hemispherical structures, and the inner ends of the two circular positioning pins 302 are inserted into the two arc-shaped positioning grooves 2011; there are two force-bearing circular rings 303, and the two force-bearing circular rings 303 are fixedly installed on the outside of the two circular positioning pins 302; there are two supporting springs A304, and the two supporting springs A304 are sleeved on the outside of the two circular positioning pins 302, and the two supporting springs A304 are located between the two U-shaped positioning seats 301 and the two force-bearing circular rings 303;

[0054] The specific function is as follows: since the switching bracket 202 is rotatably mounted on the top of the Y-shaped support bracket 201, and the two limit retaining rings 203 are fixedly mounted on the outside of the Y-shaped support bracket 201, and the inner sides of the two limit retaining rings 203 are in contact with the switching bracket 202, it is convenient for the staff to switch the two filter cottons 207, and the filter cottons 207 are quickly replaced, which saves the time of disassembly and installation of the filter cottons 207, reduces the downtime, and improves the production efficiency of the synthetic resin;

[0055] In addition, because the two circular locating pins 302 are slidably installed on the two U-shaped locating seats 301 and the switching bracket 202, and the inner ends of the two circular locating pins 302 are inserted into the two arc-shaped locating grooves 2011, the switching bracket 202 is positioned, making the switching bracket 202 more stable after rotation; and because the inner ends of the two circular locating pins 302 are hemispherical structures, and the two supporting springs A304 are sleeved on the outside of the two circular locating pins 302, and the two supporting springs A304 are located between the two U-shaped locating seats 301 and the two force-bearing circular rings 303, when the switching bracket 202 rotates, the Y-shaped support frame 201 pushes the two circular locating pins 302 to move outward, so that the two circular locating pins 302 are automatically separated from the two arc-shaped locating grooves 2011; when the switching bracket 202 rotates half a circle, the two circular locating pins 302 are inserted into the two arc-shaped locating grooves 2011 again under the action of the two supporting springs A304.

[0056] In the present disclosure, Figure 3 , Figure 5 , Fig.10 and Fig.11 As shown, the connection mechanism 100 further includes: an annular sealing sleeve 104, a conical collecting cover 105 and a connecting pipe 106; the annular sealing sleeve 104 is fixedly mounted inside the conical feed cover 102, and the top of the annular sealing sleeve 104 is provided with a chamfer; the conical collecting cover 105 is fixedly mounted on the filter frame 101; the left end of the connecting pipe 106 is fixedly mounted on the conical collecting cover 105, and the right end of the connecting pipe 106 is fixedly mounted on the conical discharge cover 103;

[0057] The replacement mechanism 400 includes: a linear electric cylinder A401, an extrusion disc A402 and a circular needle 403; the linear electric cylinder A401 is fixedly mounted on the top of the filter frame 101; the extrusion disc A402 is fixedly mounted on the output shaft of the linear electric cylinder A401, and the diameter of the extrusion disc A402 is the same as the inner diameter of the circular filter cartridge 204; the circular needle 403 is fixedly mounted on the bottom of the extrusion disc A402, and the diameter of the circular needle 403 is the same as the aperture of the circular through hole 2061, and the circular needle 403 is concentrically arranged with the circular through hole 2061; the replacement mechanism 400 also includes: a movable limit block 404 and a support spring B405; there are two movable limit blocks 404, and the two movable limit blocks 404 are slidably mounted inside the circular needle 403; the support spring B405 is mounted inside the circular needle 403, and the support spring B405 is located between the two movable limit blocks 404;

[0058] Its specific function is as follows: because the extrusion disc A402 is fixedly mounted on the output shaft of the linear electric cylinder A401, and the diameter of the extrusion disc A402 is the same as the inner diameter of the circular filter cartridge 204, and the extrusion disc A402 is concentrically arranged with the circular filter cartridge 204 on the left, when the output shaft of the linear electric cylinder A401 is extended, the extrusion disc A402 automatically presses the filter cotton 207 on the left; and because the circular filter cartridge 204 on the left is concentrically arranged with the conical collecting cover 105, and the left end of the connecting pipe 106 is fixedly mounted on the conical collecting cover 105, and the right end of the connecting pipe 106 is fixedly mounted on the conical discharge cover 103, when the extrusion disc A402 presses the filter cotton 207 on the left, the liquid in the filter cotton 207 on the left enters the conical discharge cover 103 through the conical collecting cover 105 and the connecting pipe 106, thereby avoiding the waste of the liquid in the filter cotton 207 on the left;

[0059] In addition, because the circular needle 403 is fixedly installed at the bottom of the extrusion disc A402, and the diameter of the circular needle 403 is the same as the aperture of the circular through hole 2061, and the circular needle 403 and the circular through hole 2061 are arranged concentrically, when the output shaft of the linear electric cylinder A401 is fully extended, the circular needle 403 can be inserted into the circular through hole 2061 on the left; and because the two movable limit blocks 404 are slidably installed inside the circular needle 403, and the support spring B405 is located between the two movable limit blocks 404, the two movable limit blocks 404 can follow the circular needle 403 through the circular through hole on the left. 2061; when the output shaft of the linear electric cylinder A401 contracts, the two movable limit blocks 404 can drive the supporting mesh plate 206 and the filter cotton 207 to move upward. When the supporting mesh plate 206 moves upward, it can automatically scrape the inner wall of the circular filter cylinder 204 to avoid residual filtered impurities inside the circular filter cylinder 204; when the staff presses the two movable limit blocks 404 inward by hand, the supporting mesh plate 206 and the filter cotton 207 are automatically separated from the circular needle 403 under the action of gravity; then the staff places the supporting mesh plate 206 and the new filter cotton 207 in the circular filter cylinder 204 on the left.

[0060] In the present disclosure, Fig.12 and Fig.13 As shown, the feeding mechanism 500 includes: a feeding box 501, a linear electric cylinder B502 and a circular driving rod 503; the feeding box 501 is fixedly mounted on the top of the filter frame 101, and the bottom of the feeding box 501 is also fixedly connected to the conical feeding cover 102; the linear electric cylinder B502 is fixedly mounted on the top of the feeding box 501; the circular driving rod 503 is fixedly mounted on the output shaft of the linear electric cylinder B502, and the circular driving rod 503 is also slidably connected to the feeding box 501; the feeding mechanism 500 also includes: a mixing screen plate 504 and an extrusion disc B505; the mixing screen plate 504 is fixedly mounted on the outside of the circular driving rod 503; the extrusion disc B505 is fixedly mounted on the bottom of the circular driving rod 503, and the diameter of the extrusion disc B505 is the same as the inner diameter of the annular sealing sleeve 104, and the extrusion disc B505 is concentrically arranged with the annular sealing sleeve 104;

[0061] Its specific function is as follows: because the extrusion disc B505 is fixedly installed at the bottom of the circular driving rod 503, and the diameter of the extrusion disc B505 is the same as the inner diameter of the annular sealing sleeve 104, and the extrusion disc B505 and the annular sealing sleeve 104 are arranged concentrically, when the output shaft of the linear electric cylinder B502 is extended, the extrusion disc B505 presses the liquid in the annular sealing sleeve 104, thereby improving the filtering efficiency; and because the top of the annular sealing sleeve 104 is provided with a chamfer, when the output shaft of the linear electric cylinder B502 is fully retracted, the liquid in the feed box 501 flows to the bottom of the extrusion disc B505 through the gap between the annular sealing sleeve 104 and the extrusion disc B505;

[0062] In addition, since the mixing mesh plate 504 is fixedly installed on the outside of the circular driving rod 503, when the output shaft of the linear electric cylinder B502 extends, the mixing mesh plate 504 moves downward; when the output shaft of the linear electric cylinder B502 contracts, the mixing mesh plate 504 moves upward, which can automatically mix the liquid in the feed box 501, avoiding the precipitation of impurities and facilitating subsequent filtration.

[0063] The specific usage and function of this embodiment are as follows:

[0064] When the present invention is used, first, the staff pours the liquid to be filtered into the feed box 501. When the output shaft of the linear electric cylinder B502 is extended, the extrusion disc B505 presses the liquid in the annular sealing sleeve 104, thereby improving the filtering efficiency; when the output shaft of the linear electric cylinder B502 is fully retracted, the liquid in the feed box 501 flows to the bottom of the extrusion disc B505 through the gap between the annular sealing sleeve 104 and the extrusion disc B505; when the output shaft of the linear electric cylinder B502 is extended, the mixing screen plate 504 moves downward; when the output shaft of the linear electric cylinder B502 is retracted, the mixing screen plate 504 moves upward, which can automatically mix the liquid in the feed box 501, thereby avoiding the precipitation of impurities and facilitating subsequent filtration;

[0065] When the filter cotton 207 needs to be replaced, the staff will rotate the switching bracket 202 half a circle, which is convenient for the staff to switch the two filter cottons 207, realizing the rapid replacement of the filter cotton 207, saving the disassembly and installation time of the filter cotton 207, reducing the downtime, and improving the production efficiency of the synthetic resin; when the switching bracket 202 rotates, the Y-shaped support frame 201 pushes the two circular positioning pins 302 to move outward, so that the two circular positioning pins 302 are automatically separated from the two arc-shaped positioning grooves 2011; when the switching bracket 202 rotates half a circle, the two circular positioning pins 302 are inserted into the two arc-shaped positioning grooves 2011 again under the action of the two support springs A304;

[0066] After the filter cotton 207 is replaced, the staff starts the linear electric cylinder A401 to extend the output shaft of the linear electric cylinder A401. When the output shaft of the linear electric cylinder A401 is extended, the squeezing disc A402 automatically presses the filter cotton 207 on the left side; when the squeezing disc A402 presses the filter cotton 207 on the left side, the liquid in the filter cotton 207 on the left side enters the conical discharge cover 103 through the conical collecting cover 105 and the connecting pipe 106, avoiding the waste of the liquid in the filter cotton 207 on the left side; when the output shaft of the linear electric cylinder A401 is fully extended, the circular needle 403 can be inserted into the circular through hole 2061 on the left side; the two movable limit blocks 404 can follow The circular needle 403 passes through the circular through hole 2061 on the left; when the output shaft of the linear electric cylinder A401 contracts, the two movable limit blocks 404 can drive the supporting mesh plate 206 and the filter cotton 207 to move upward. When the supporting mesh plate 206 moves upward, it can automatically scrape the inner wall of the circular filter cylinder 204 to avoid residual filtered impurities inside the circular filter cylinder 204; then the staff presses the two movable limit blocks 404 inward by hand, at this time, the supporting mesh plate 206 and the filter cotton 207 are automatically separated from the circular needle 403 under the action of gravity; then the staff places the supporting mesh plate 206 and the new filter cotton 207 in the circular filter cylinder 204 on the left.

[0067] In this article, there are a few points to note:

[0068] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0069] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0070] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A filtering device for synthetic resin production, comprising: A connecting mechanism (100), a filtering mechanism (200), a positioning mechanism (300), a replacement mechanism (400) and a feeding mechanism (500); characterized in that the filtering mechanism (200) is mounted on the connecting mechanism (100); The positioning mechanism (300) is installed on the filtering mechanism (200), and the positioning mechanism (300) is used to position the filtering mechanism (200); the replacement mechanism (400) is installed on the connecting mechanism (100); and the feeding mechanism (500) is installed on the top of the connecting mechanism (100); The connecting mechanism (100) comprises: a filter frame (101), a conical feed cover (102), a conical discharge cover (103), a conical collection cover (105) and a connecting pipe (106); the conical feed cover (102) is fixedly mounted on the filter frame (101); the conical discharge cover (103) is fixedly mounted on the filter frame (101), and the conical discharge cover (103) is located directly below the conical feed cover (102); the conical collection cover (105) is fixedly mounted on the filter frame (101); the left end of the connecting pipe (106) is fixedly mounted on the conical collection cover (105), and the right end of the connecting pipe (106) is fixedly mounted on the conical discharge cover (103); The filtering mechanism (200) comprises: a Y-shaped support frame (201), a switching support frame (202), a circular filter cartridge (204), a supporting mesh disk (206) and filter cotton (207); the Y-shaped support frame (201) is fixedly mounted on the filtering frame (101); the switching support frame (202) is rotatably mounted on the top of the Y-shaped support frame (201); there are two circular filter cartridges (204) in total, and the two circular filter cartridges (204) are fixedly mounted on the switching support frame (202); there are two supporting mesh disks (206) in total, and the two supporting mesh disks (206) are slidably mounted inside the two circular filter cartridges (204), and the centers of the two supporting mesh disks (206) are respectively provided with circular through holes (2061); there are two filter cottons (207) in total, and the two filter cottons (207) are slidably mounted inside the two circular filter cartridges (204), and the bottoms of the two filter cottons (207) are in contact with the two supporting mesh disks (206); The replacement mechanism (400) comprises: a linear electric cylinder A (401), an extrusion disc A (402), a circular needle (403), a movable stop block (404) and a support spring B (405); the linear electric cylinder A (401) is fixedly mounted on the top of the filter frame (101); the extrusion disc A (402) is fixedly mounted on the output shaft of the linear electric cylinder A (401); the circular needle (403) is fixedly mounted on the bottom of the extrusion disc A (402); there are two movable stop blocks (404) in total, and the two movable stop blocks (404) are slidably mounted inside the circular needle (403); the support spring B (405) is mounted inside the circular needle (403), and the support spring B (405) is located between the two movable stop blocks (404).

2. A filtering device for synthetic resin production according to claim 1, characterized in that: The connection mechanism (100) further comprises: an annular sealing sleeve (104); the annular sealing sleeve (104) is fixedly mounted inside the conical feed cover (102), and a chamfer is provided on the top of the annular sealing sleeve (104).

3. A filtering device for synthetic resin production according to claim 2, characterized in that: The filtering mechanism (200) further comprises: a limit retaining ring (203); two arc-shaped positioning grooves (2011) are provided on the Y-shaped support frame (201); a total of two limit retaining rings (203) are provided, and the two limit retaining rings (203) are fixedly mounted on the outside of the Y-shaped support frame (201), and the inner sides of the two limit retaining rings (203) are in contact with the switching bracket (202).

4. A filtering device for synthetic resin production according to claim 3, characterized in that: The filtering mechanism (200) further comprises: a circular support ring (205); the circular filter cartridge (204) on the left is arranged concentrically with the conical collecting cover (105), and the circular filter cartridge (204) on the right is arranged concentrically with the conical feed cover (102) and the conical discharge cover (103); a total of two circular support rings (205) are provided, and the two circular support rings (205) are fixedly installed inside the two circular filter cartridges (204); the bottoms of the two supporting mesh plates (206) are in contact with the two circular support rings (205).

5. A filtering device for synthetic resin production according to claim 4, characterized in that: The filtering mechanism (200) further comprises: a rubber sealing ring (208) and a one-way valve (209); four rubber sealing rings (208) are provided in total, and the four rubber sealing rings (208) are installed at the upper and lower ends of the two circular filtering cylinders (204); two one-way valves (209) are provided in total, and the two one-way valves (209) are fixedly installed inside the two circular filtering cylinders (204).

6. A filtering device for synthetic resin production according to claim 3, characterized in that: The positioning mechanism (300) comprises: a U-shaped positioning seat (301), a circular positioning pin (302), a force-bearing circular ring (303) and a supporting spring A (304); two U-shaped positioning seats (301) are provided, and the two U-shaped positioning seats (301) are fixedly mounted on the front and rear sides of the switching bracket (202); two circular positioning pins (302) are provided, and the two circular positioning pins (302) are slidably mounted on the two U-shaped positioning seats (301) and the switching bracket (202); the inner portions of the two circular positioning pins (302) are The ends of the two circular positioning pins (302) are hemispherical structures, and the inner ends of the two circular positioning pins (302) are inserted into the two arc-shaped positioning grooves (2011); the force-bearing circular rings (303) are provided with two in total, and the two force-bearing circular rings (303) are fixedly installed on the outside of the two circular positioning pins (302); the support springs A (304) are provided with two in total, and the two support springs A (304) are sleeved on the outside of the two circular positioning pins (302), and the two support springs A (304) are located between the two U-shaped positioning seats (301) and the two force-bearing circular rings (303).

7. A filtering device for synthetic resin production according to claim 4, characterized in that: The diameter of the extrusion disc A (402) is the same as the inner diameter of the circular filter cartridge (204); the diameter of the circular puncture needle (403) is the same as the aperture of the circular through hole (2061), and the circular puncture needle (403) and the circular through hole (2061) are arranged concentrically.

8. A filtering device for synthetic resin production according to claim 2, characterized in that: The feeding mechanism (500) comprises: a feeding box (501), a linear electric cylinder B (502) and a circular driving rod (503); the feeding box (501) is fixedly mounted on the top of the filtering frame (101), and the bottom of the feeding box (501) is also fixedly connected to the conical feeding cover (102); the linear electric cylinder B (502) is fixedly mounted on the top of the feeding box (501); the circular driving rod (503) is fixedly mounted on the output shaft of the linear electric cylinder B (502), and the circular driving rod (503) is also slidably connected to the feeding box (501).

9. A filtering device for synthetic resin production according to claim 8, characterized in that: The feeding mechanism (500) further comprises: a mixing screen (504) and an extrusion disc B (505); the mixing screen (504) is fixedly mounted on the outside of the circular driving rod (503); the extrusion disc B (505) is fixedly mounted on the bottom of the circular driving rod (503), and the diameter of the extrusion disc B (505) is the same as the inner diameter of the annular sealing sleeve (104), and the extrusion disc B (505) and the annular sealing sleeve (104) are concentrically arranged.

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