Screen changer with rotary scraping mechanism

Abstract

The utility model belongs to the technical field of screen exchangers, and discloses a screen exchanger with a rotary scraping mechanism, which comprises a first shell, a second shell is arranged at one end of the first shell, a detachable annular plate is arranged between the first shell and the second shell, a hollow cavity is formed between the first shell and the second shell, and the rotary scraping mechanism is arranged between the first shell and the second shell. A net placing frame is arranged in the cavity; the dismounting and mounting assembly comprises a through hole formed in the first shell and a dismounting and mounting block inserted into the through hole, and a mounting plate is mounted on the dismounting and mounting block; by means of the dismounting assembly, the fixing assembly and the limiting assembly, the filter plate on the net placing frame can be rapidly maintained and replaced, so that the replacement efficiency of the filter plate on the net placing frame is improved, the net changer can be prevented from being blocked, the filter plate on the net placing frame can be conveniently and repeatedly used, the working efficiency of the net changer is greatly improved, and the labor intensity of workers is reduced. And the screen exchanger is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of screen changers, in particular to a screen changer with a rotary scraping mechanism. Background Art

[0002] The screen changer is a manual or automatic switching device including one or more filter screens. It is used to filter and clean out foreign particles and impurities through the screen changer blade when the plasticized material flows through the filter screen, making the plasticized material more pure for subsequent processing and use of the plasticized material.

[0003] In the Chinese patent with announcement number CN215095517U, a double-column switching screen changer is disclosed, which switches the connection state between the feed port and the filter chamber through a switching valve, and then drives the filter column to perform the screen changing operation; compared with the traditional column-type screen changer, the utility model greatly reduces the processing difficulty and precision requirements of each component by changing the screen changing method, thereby reducing the production cost, simplifying the operation, and retaining a better filtering effect; however, when the above-mentioned double-column switching screen changer is actually used, the screen changing operation is performed by driving the filter column, but the filter column is difficult to quickly disassemble and repair the filter column when in use, which makes the filter column easy to cause blockage, affecting the use of the screen changer. Utility Model Content

[0004] The utility model provides a screen changer with a rotary scraper mechanism to solve the problem that the existing filter column is difficult to quickly disassemble and repair when in use, which makes the filter column easily blocked and affects the use of the screen changer.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a screen changer with a rotary scraping mechanism, comprising:

[0006] A first shell, a second shell is disposed at one end of the first shell, a detachable annular plate is disposed between the first shell and the second shell, a cavity is hollowed out between the first shell and the second shell, a mesh frame is disposed inside the cavity, a detachable filter plate is mounted on the mesh frame, a receiving groove is provided inside the second shell, a motor is mounted inside the receiving groove, the motor is used to drive the gear to rotate, and a material port is disposed on one side of the first shell for the material to be filtered to enter the screen changer;

[0007] The disassembly assembly comprises a through hole formed on the first shell and a disassembly block inserted in the through hole, a mounting plate is mounted on the disassembly block, and the mounting plate is fitted with the first shell.

[0008] Preferably, a fixing assembly is provided between the mounting plate and the first shell, and the fixing assembly comprises threaded holes formed on the mounting plate and the first shell and a positioning rod screwed into the threaded holes.

[0009] Preferably, a limiting assembly is provided between the first shell and the disassembly block, the limiting assembly comprises a positioning plate fixed on the first shell and a limiting groove provided on the disassembly block, the positioning plate is located inside the limiting groove, and a pull handle is fixed on one side of the disassembly block.

[0010] Preferably, a rotating assembly is arranged inside the cavity, and the rotating assembly comprises a toothed disc and a gear rotatably mounted inside the cavity, the gear is meshed with the toothed disc, and the toothed disc is sleeved on the grid.

[0011] Preferably, a rotary scraping mechanism is provided on one side of the disassembly block, and the rotary scraping mechanism includes a fixed plate fixed on one side of the disassembly block and a scraper arranged on the end of the fixed plate away from the disassembly block, and the scraper is in contact with the mesh frame and the filter plate. The scraper is arranged to facilitate the scraping and cleaning of the filter plate and the mesh frame.

[0012] Preferably, a connecting component is provided between the scraper and the fixed plate, and the connecting component includes a plug-in slot opened on the fixed plate and a plug-in block fixed to one end of the scraper close to the fixed plate, and limit plates are fixed on both sides of the plug-in block, and the limit plates and the plug-in block are both located inside the plug-in slot.

[0013] Preferably, an auxiliary protection component is provided at one end of the scraper close to the grid frame, and the auxiliary protection component includes a protective cushion detachably installed at one end of the scraper close to the grid frame.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] (1) The utility model can realize the rapid maintenance and replacement of the filter plate on the mesh frame by means of the disassembly and assembly components, the fixing components and the limiting components, so as to improve the replacement efficiency of the filter plate on the mesh frame, avoid the blockage of the mesh changer, and thus facilitate the reuse of the filter plate on the mesh frame, greatly improve the working efficiency of the mesh changer, and facilitate the use of the mesh changer;

[0016] (2) The utility model can quickly disassemble and assemble the rotary scraper mechanism from the disassembly assembly by means of the connection assembly, so as to improve the disassembly and maintenance efficiency of the rotary scraper mechanism, thereby facilitating the maintenance and replacement of the rotary scraper mechanism by the staff, and can further protect the scraper, the mesh frame and the filter plate through the auxiliary protection assembly, so as to increase the service life of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A partial cross-sectional view of

[0020] Figure 3 It is a structural schematic diagram of the disassembly and assembly components of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the rotating assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the rotary scraping mechanism of the utility model;

[0023] In the figure: 1. first shell; 2. second shell; 3. annular plate; 4. connecting assembly; 41. plug-in block; 42. limit plate; 43. protective cushion; 5. disassembly assembly; 51. disassembly block; 52. positioning plate; 53. pull handle; 54. mounting plate; 55. positioning rod; 6. rotating assembly; 61. toothed disc; 62. gear; 7. rotary scraper mechanism; 71. fixing plate; 72. scraper; 8. mesh frame; 9. filter plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1 , Figure 2 , Figure 4 and Figure 5A screen changer with a rotary scraping mechanism is shown, comprising: a first shell 1, a second shell 2 is arranged at one end of the first shell 1, a detachable annular plate 3 is arranged between the first shell 1 and the second shell 2, a cavity is hollowed out between the first shell 1 and the second shell 2, a mesh frame 8 is arranged inside the cavity, and a detachable filter plate 9 is installed on the mesh frame 8; a rotating component 6 is arranged inside the cavity, the rotating component 6 includes a toothed disc 61 and a gear 62 rotatably installed inside the cavity, the gear 62 is meshed with the toothed disc 61, and the toothed disc 61 is sleeved on the mesh frame 8; a rotary scraping mechanism 7 is arranged on one side of the disassembly block 51, the rotary scraping mechanism 7 includes a fixed plate 71 fixed to one side of the disassembly block 51 and a scraper 72 arranged on the end of the fixed plate 71 away from the disassembly block 51.

[0026] As can be seen from the above, when in use, the first shell 1 and the second shell 2 are first connected and installed through the annular plate 3, and then the material to be filtered is placed in the material port, and then the motor drives the gear 62 to rotate, and through the engagement of the gear 62 with the toothed disc 61, the toothed disc 61 and the mesh frame 8 are rotated with the rotation of the gear 62, so that the multiple filter plates 9 on the mesh frame 8 repeatedly filter the material at the material port to improve the working efficiency of the screen changer, and the scraper 72 is installed on the fixed plate 71, and then the scraper 72 is fitted with the mesh frame 8 and the filter plate 9 to complete the cleaning of the scraper 72 relative to the mesh frame 8 and the filter plate 9, so that the filter plate 9 and the mesh frame 8 can be reused to improve the working efficiency of the screen changer.

[0027] refer to Figure 1-Figure 3 As shown, the disassembly and assembly component 5 includes a through hole opened on the first shell 1 and a disassembly and assembly block 51 inserted in the through hole, a mounting plate 54 is installed on the disassembly and assembly block 51, and the mounting plate 54 is in contact with the first shell 1; a fixing component is arranged between the mounting plate 54 and the first shell 1, the fixing component includes threaded holes opened on the mounting plate 54 and the first shell 1, and a positioning rod 55 screwed in the threaded hole; a limiting component is arranged between the first shell 1 and the disassembly and assembly block 51, the limiting component includes a positioning plate 52 fixed on the first shell 1 and a limiting groove opened on the disassembly and assembly block 51, the positioning plate 52 is inside the limiting groove, and a pull handle 53 is fixed on one side of the disassembly and assembly block 51.

[0028] Through the above technical solution:

[0029] When it is necessary to quickly disassemble and assemble the filter plate 9, the staff rotates the positioning rod 55 to remove the positioning rod 55 from the threaded hole, and then the staff pulls the handle 53 outward to complete the removal of the disassembly block 51 from the through hole, so that the staff can quickly disassemble and assemble the filter plate 9 on the grid frame 8, so that the filter plate 9 on the grid frame 8 can be reused to avoid clogging of the screen changer, effectively improving the working efficiency of the screen changer. After the replacement is completed, the disassembly block 51 is aligned with the through hole, and then the staff pushes the disassembly block 51 in the direction of the through hole to insert the disassembly block 51 into the through hole, and the disassembly block 51 can be limited to a certain extent by the positioning plate 52, so that the disassembly block 51 is more stable and stable when installed with the first shell 1, so as to avoid the disassembly block 51 from falling off the first shell 1, which is convenient for the use of the screen changer.

[0030] In addition, refer to Figure 1 and Figure 5 As shown, a connecting component 4 is provided between the scraper 72 and the fixed plate 71, and the connecting component 4 includes a plug-in slot opened on the fixed plate 71 and a plug-in block 41 fixed to one end of the scraper 72 close to the fixed plate 71, and limiting plates 42 are fixed on both sides of the plug-in block 41, and the limiting plates 42 and the plug-in block 41 are both located inside the plug-in slot; an auxiliary protective component is provided at one end of the scraper 72 close to the grid 8, and the auxiliary protective component includes a protective cushion 43 detachably installed on one end of the scraper 72 close to the grid 8.

[0031] Through the above technical solution:

[0032] When in use, first align the limit plate 42 with the plug-in block 41 and the plug-in slot, and then the staff pushes the scraper 72 to insert the limit plate 42 and the plug-in block 41 into the plug-in slot to complete the rapid disassembly and assembly of the scraper 72 and the fixing plate 71, so as to quickly repair and replace the scraper 72 to increase the service life of the scraper 72, and the first shell 1 is fixed to one end of the disassembly block 51, so that when the disassembly block 51 is removed from the first shell 1, the scraper 72 can also be disassembled and assembled, so as to quickly replace the scraper 72, so as to improve the disassembly and assembly maintenance efficiency of the rotary scraper mechanism 7, so that the staff can repair and replace the rotary scraper mechanism 7, and then install the protective pad 43 on the scraper 72, so that when the scraper 72 is cleaned against the grid frame 8 and the filter plate 9 again, the protective pad 43 contacts with the grid frame 8 and the filter plate 9, which can further protect the scraper 72, the grid frame 8 and the filter plate 9 to increase the service life of the filter plate 9.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen changer with a rotary scraping mechanism, characterized in that: include: A first shell (1), a second shell (2) being arranged at one end of the first shell (1), a detachable annular plate (3) being arranged between the first shell (1) and the second shell (2), a cavity being hollowed out between the first shell (1) and the second shell (2), a grid frame (8) being arranged inside the cavity, and a detachable filter plate (9) being mounted on the grid frame (8); A disassembly assembly (5), the disassembly assembly (5) comprising a through hole opened on the first shell (1) and a disassembly block (51) inserted in the through hole, a mounting plate (54) mounted on the disassembly block (51), and the mounting plate (54) is fitted with the first shell (1).

2. A screen changer with a rotary scraping mechanism according to claim 1, characterized in that: A fixing assembly is provided between the mounting plate (54) and the first shell (1), the fixing assembly comprising threaded holes provided on the mounting plate (54) and the first shell (1) and a positioning rod (55) screwed inside the threaded holes.

3. A screen changer with a rotary scraping mechanism according to claim 2, characterized in that: A limit assembly is provided between the first shell (1) and the disassembly block (51), the limit assembly comprising a positioning plate (52) fixed on the first shell (1) and a limit groove provided on the disassembly block (51), the positioning plate (52) being located inside the limit groove, and a pull handle (53) being fixed on one side of the disassembly block (51).

4. A screen changer with a rotary scraping mechanism according to claim 1, characterized in that: A rotating assembly (6) is arranged inside the cavity. The rotating assembly (6) comprises a toothed disc (61) and a gear (62) rotatably mounted inside the cavity. The gear (62) meshes with the toothed disc (61). The toothed disc (61) is sleeved on the grid frame (8).

5. The screen changer with a rotary scraping mechanism according to claim 1, characterized in that: A rotary scraping mechanism (7) is provided on one side of the disassembling block (51), and the rotary scraping mechanism (7) comprises a fixed plate (71) fixed to one side of the disassembling block (51) and a scraper (72) provided at an end of the fixed plate (71) away from the disassembling block (51).

6. A screen changer with a rotary scraping mechanism according to claim 5, characterized in that: A connecting assembly (4) is provided between the scraper (72) and the fixed plate (71), the connecting assembly (4) comprising a plug-in slot provided on the fixed plate (71) and a plug-in block (41) fixed to one end of the scraper (72) close to the fixed plate (71), limiting plates (42) are fixed on both sides of the plug-in block (41), and the limiting plates (42) and the plug-in block (41) are both located inside the plug-in slot.

7. A screen changer with a rotary scraping mechanism according to claim 6, characterized in that: An auxiliary protection component is provided at one end of the scraper (72) close to the grid frame (8), and the auxiliary protection component comprises a protective cushion (43) detachably mounted on one end of the scraper (72) close to the grid frame (8).

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