Fluctuation-free screen exchanger

Abstract

The utility model belongs to the technical field of screen exchangers, and discloses a fluctuation-free screen exchanger which comprises a screen exchanger box body, a plurality of filter columns are inserted in the screen exchanger box body, filter screens are arranged in the filter columns, a feeding device is installed on one side of the screen exchanger box body, and a discharging device is installed on the other side of the screen exchanger box body. A feeding hole corresponding to the filter screen is formed in the feeding device; the replacing mechanism comprises a filtering hole formed in the filtering column and a mounting seat mounted in the filtering hole; through the arrangement of the replacement mechanism, the filter screen in the filter column can be rapidly replaced, and the situation that the downtime of equipment is increased in the replacement process if the time consumption in the process of replacing the filter screen is relatively long is avoided, so that the production continuity of the device is improved, and the production efficiency is improved. Meanwhile, the problems that in an existing device, the risk of misoperation is increased in the complex filter screen replacement process, and even equipment damage or misoperation is caused are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen changers, in particular to a non-fluctuation screen changer. Background Art

[0002] The screen changer can effectively filter out foreign particles, impurities and other impurities to ensure that the quality of the plasticized materials produced meets the requirements. At the same time, the screen changer plays an important role in plastic production, which can improve production efficiency, protect equipment, and ensure that the produced plastic products have good quality and performance.

[0003] In the Chinese patent with the announcement number CN215396800U, a multi-column non-surge screen changer is disclosed, which uses more than three filter columns. When in use, multiple filter columns change the screen in turn. The flow change of the material during the screen change is smaller than that of the double-column non-surge screen changer, and the pressure fluctuation caused by this is also smaller. In addition, due to the increase in the number of filter columns, the filtration area is also increased accordingly, especially when changing the screen, the filtration area of ​​the screen changer increases exponentially, greatly reducing the impact of the screen change on the filtration; however, when using the above-mentioned multi-column non-surge screen changer, it is not convenient to quickly replace the filter screen inside the filter column. If the process of replacing the filter screen takes a long time, the time that the equipment needs to be shut down during the replacement process will increase, thereby affecting the continuity of production. At the same time, the complicated process of replacing the filter screen will increase the risk of misoperation, resulting in equipment damage or improper operation. Utility Model Content

[0004] The utility model proposes a non-wave screen changer to solve the problem that the existing screen changer is not convenient for quickly replacing the filter screen inside the filter column. If the process of replacing the filter screen is time-consuming, the equipment downtime will increase during the replacement process, affecting the continuity of production. At the same time, the complicated process of replacing the filter screen will increase the risk of misoperation, resulting in equipment damage or improper operation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions: a non-surge screen changer, comprising:

[0006] A screen changer housing, wherein a plurality of filter columns are inserted into the interior of the screen changer housing, and filter screens are provided inside the plurality of filter columns; a feeding device is installed on one side of the screen changer housing, and a feeding port corresponding to the filter screen is provided inside the feeding device;

[0007] A replacement mechanism, wherein the replacement mechanism is located between the filter screen and the filter column, and the replacement mechanism is used to quickly replace the filter screen, the replacement mechanism comprises a filter hole opened inside the filter column and a mounting seat installed inside the filter hole, the mounting seat is connected to the filter screen, and a fixing mechanism for fixing the filter screen is arranged between the mounting seat and the filter screen.

[0008] Preferably, the fixing mechanism includes two open slots provided on one side of the mounting seat and fixing blocks fixed on both sides of the filter screen, the two fixing blocks correspond to the two open slots, and an interference mechanism for causing the fixing blocks to interfere with the open slots is provided between the fixing blocks.

[0009] Preferably, the interference mechanism includes a receiving groove opened on one side of the opening groove and an extrusion block installed inside the receiving groove, a spring is connected between the extrusion block and the receiving groove, and the extrusion block cooperates with the fixing block.

[0010] Preferably, a resistance groove is provided on one side of the opening groove relative to the receiving groove, the resistance groove cooperates with a fixing block, and two control rods are fixed on one side of the filter screen.

[0011] Preferably, a plurality of connecting columns are fixed to one side of the screen changer housing, a mounting plate is commonly installed on one side of the plurality of connecting columns, a power device is provided on one side of the mounting plate, and an output end of the power device is connected to a plurality of filter columns.

[0012] Preferably, a positioning mechanism for positioning the filter column is provided between the filter column and the connecting column, the positioning mechanism comprises a fixing plate fixed to one end of the filter column and a positioning sleeve sleeved on the outer wall of the connecting column, a reinforcement column is installed on the top of the fixing plate, connecting plates are installed at both ends of the reinforcement column, and the connecting plates are fixed to the positioning sleeve.

[0013] Preferably, a sliding mechanism is provided between the positioning sleeve and the connecting column to facilitate the sliding of the positioning sleeve, and the sliding mechanism includes a plurality of fixing grooves provided inside the positioning sleeve and rollers installed inside the fixing grooves, and the rollers cooperate with the connecting column.

[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 replacement of the filter screen inside the filter column by setting the replacement mechanism, thereby avoiding the situation that if the process of replacing the filter screen is time-consuming, the equipment downtime will increase during the replacement process, thereby increasing the production continuity of the device, and solving the problem that the complicated process of replacing the filter screen in the existing device increases the risk of misoperation and even causes equipment damage or improper operation;

[0016] (2) The utility model can limit the position of the filter column when it is working by setting a positioning mechanism, which can ensure that the filter column maintains a stable position during operation and prevent it from shifting or shaking, thereby helping to maintain the stability of the equipment and the reliability of operation. At the same time, the stable position of the filter column can ensure that the filter screen and the filter medium are in full contact, thereby improving the filtration efficiency, thereby extending the service life of the filter column and reducing maintenance costs. 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 cross-sectional view of

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

[0021] Figure 4 For this utility model Figure 3 A cross-sectional view of the middle mounting seat;

[0022] Figure 5 For this utility model Figure 1 The structural diagram of the positioning mechanism;

[0023] Figure 6 For this utility model Figure 5 A cross-sectional view of the middle positioning sleeve;

[0024] In the figure: 1. Screen changer housing; 2. Power device; 3. Mounting plate; 4. Positioning mechanism; 5. Filter column; 6. Connecting column; 7. Feeding device; 8. Filter screen; 9. Mounting seat; 10. Control rod; 11. Spring; 12. Extrusion block; 13. Fixing block;

[0025] 41. Fixed plate; 42. Reinforcement column; 43. Connecting plate; 44. Positioning sleeve; 45. Roller. DETAILED DESCRIPTION

[0026] 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.

[0027] The utility model provides Figure 1 and Figure 2 The shown type of fluctuation-free screen changer comprises: a screen changer housing 1, a plurality of filter columns 5 are plugged into the interior of the screen changer housing 1, a filter screen 8 is provided inside each of the plurality of filter columns 5, a feeding device 7 is installed on one side of the screen changer housing 1, a feeding port corresponding to the filter screen 8 is provided inside the feeding device 7, a plurality of connecting columns 6 are fixed to one side of the screen changer housing 1, a mounting plate 3 is commonly installed on one side of the plurality of connecting columns 6, a power device 2 is provided on one side of the mounting plate 3, and an output end of the power device 2 is connected to the plurality of filter columns 5; wherein, the structures and working principles of the power device 2 and the feeding device 7 are prior arts, and for details, please refer to the comparative document (announcement number CN215396800U, and the name is a multi-column fluctuation-free screen changer), which will not be elaborated here.

[0028] As can be seen from the above, when in use, first place the screen changer box 1 where it is needed, then let the material enter the filter screen 8 through the feeding device 7 so that the material can be filtered, and then discharge the material. When the filter screen 8 inside the filter column 5 needs to be replaced, the power device 2 drives the filter column 5 to extend out of the screen changer box 1 to perform the screen changing operation, and the other filter columns 5 continue the filtering operation without stopping, thereby completing the filtration of the material.

[0029] refer to Figure 2-Figure 4 As shown, a replacement mechanism is located between the filter screen 8 and the filter column 5, and the replacement mechanism is used to quickly replace the filter screen 8. The replacement mechanism includes a filter hole opened in the filter column 5 and a mounting seat 9 installed in the filter hole. The mounting seat 9 is connected to the filter screen 8, and a fixing mechanism for fixing the filter screen 8 is arranged between the mounting seat 9 and the filter screen 8. The fixing mechanism includes two open grooves opened on one side of the mounting seat 9 and fixed blocks 13 fixed on both sides of the filter screen 8. The two fixed blocks 13 correspond to the two open grooves, and a resistance mechanism for resisting the fixed blocks 13 is arranged between the fixed blocks 13 and the open grooves. The resistance mechanism includes a receiving groove opened on one side of the open groove and an extrusion block 12 installed in the receiving groove. A spring 11 is connected between the extrusion block 12 and the receiving groove, and the extrusion block 12 cooperates with the fixed block 13. A resistance groove is opened on one side of the open groove relative to the receiving groove, and the resistance groove cooperates with the fixed block 13. Two control rods 10 are fixed on one side of the filter screen 8.

[0030] Through the above technical solution:

[0031] When in use, the control rod 10 is rotated to drive the filter screen 8 to rotate, and the rotation of the filter screen 8 drives the two fixed blocks 13 to move. The movement of the two fixed blocks 13 makes them come into conflict with the extrusion block 12, and the conflict with the extrusion block 12 makes the spring 11 contract. The contraction of the spring 11 makes the extrusion block 12 enter the storage groove. After the extrusion block 12 enters the storage groove, the fixed block 13 corresponds to the open groove, and then the two control rods 10 are pulled to drive the filter screen 8 to separate from the mounting seat 9, so that the filter screen 8 inside the filter column 5 can be quickly replaced, avoiding the situation that if the process of replacing the filter screen 8 is time-consuming, the equipment downtime will increase during the replacement process, thereby increasing the continuity of the production of the device, and at the same time solving the problem that the complicated process of replacing the filter screen 8 in the existing device will increase the risk of misoperation and even cause equipment damage or improper operation.

[0032] In addition, refer to Figure 2 , Figure 5 and Figure 6 As shown, a positioning mechanism 4 for positioning the filter column 5 is provided between the filter column 5 and the connecting column 6. The positioning mechanism 4 includes a fixing plate 41 fixed to one end of the filter column 5 and a positioning sleeve 44 sleeved on the outer wall of the connecting column 6. A reinforcement column 42 is installed on the top of the fixing plate 41. Connecting plates 43 are installed at both ends of the reinforcement column 42. The connecting plate 43 is fixed to the positioning sleeve 44.

[0033] Through the above technical solution:

[0034] When the power device 2 drives the filter column 5 to move, the fixing plate 41 is moved, and the movement of the fixing plate 41 drives the reinforcement column 42 to move, and the movement of the reinforcement column 42 drives the two connecting plates 43 to move, and the movement of the connecting plate 43 causes the positioning sleeve 44 to slide on the outer wall of the connecting column 6, so that the filter column 5 can be limited when it is working, which can ensure that the filter column 5 maintains a stable position during operation and prevents it from shifting or shaking, thereby helping to maintain the stability of the equipment and the reliability of operation. At the same time, the stable position of the filter column 5 can ensure that the filter screen 8 is in full contact with the filter medium, improve the filtration efficiency, and thus extend the service life of the filter column 5 and reduce maintenance costs.

[0035] Furthermore, a sliding mechanism is provided between the positioning sleeve 44 and the connecting column 6 to facilitate the sliding of the positioning sleeve 44. The sliding mechanism includes a plurality of fixing grooves provided inside the positioning sleeve 44 and a roller 45 installed inside the fixing grooves, and the roller 45 cooperates with the connecting column 6. Based on this, friction is generated between the roller 45 and the connecting column 6 through the sliding of the positioning sleeve 44. The setting of the fixing groove allows the roller 45 to rotate. Through the rotation of the roller 45, the friction force between the positioning sleeve 44 and the connecting column 6 can be effectively controlled, thereby avoiding the situation where the positioning sleeve 44 is easily damaged, and greatly extending the service life of the positioning sleeve 44.

[0036] 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 non-surge screen changer, characterized in that: include: A screen changer housing (1), wherein a plurality of filter columns (5) are inserted into the interior of the screen changer housing (1), and filter screens (8) are provided inside the plurality of filter columns (5); a feed device (7) is installed on one side of the screen changer housing (1), and a feed port corresponding to the filter screen (8) is provided inside the feed device (7); A replacement mechanism, the replacement mechanism is located between the filter screen (8) and the filter column (5), and the replacement mechanism is used to quickly replace the filter screen (8), the replacement mechanism comprises a filter hole opened inside the filter column (5) and a mounting seat (9) mounted inside the filter hole, the mounting seat (9) is connected to the filter screen (8), and a fixing mechanism for fixing the filter screen (8) is provided between the mounting seat (9) and the filter screen (8).

2. The non-surge screen changer according to claim 1, characterized in that: The fixing mechanism comprises two open slots formed on one side of the mounting seat (9) and fixing blocks (13) fixed on both sides of the filter screen (8); the two fixing blocks (13) correspond to the two open slots, and a conflict mechanism for causing the fixing blocks (13) to conflict with the open slots is provided between the fixing blocks (13) and the opening slots.

3. The non-surge screen changer according to claim 2, characterized in that: The interference mechanism comprises a receiving groove opened on one side of the opening groove and an extrusion block (12) installed inside the receiving groove, a spring (11) is connected between the extrusion block (12) and the receiving groove, and the extrusion block (12) cooperates with a fixing block (13).

4. The non-surge screen changer according to claim 3, characterized in that: The opening groove is provided with a resistance groove on one side relative to the receiving groove, and the resistance groove cooperates with a fixing block (13). Two control rods (10) are fixed on one side of the filter screen (8).

5. The non-surge screen changer according to claim 1, characterized in that: A plurality of connecting columns (6) are fixed to one side of the screen changer housing (1); a mounting plate (3) is commonly mounted on one side of the plurality of connecting columns (6); a power device (2) is disposed on one side of the mounting plate (3); and an output end of the power device (2) is connected to a plurality of filter columns (5).

6. The non-surge screen changer according to claim 5, characterized in that: A positioning mechanism (4) for positioning the filter column (5) is provided between the filter column (5) and the connecting column (6); the positioning mechanism (4) comprises a fixing plate (41) fixed to one end of the filter column (5) and a positioning sleeve (44) sleeved on the outer wall of the connecting column (6); a reinforcement column (42) is installed on the top of the fixing plate (41); connecting plates (43) are installed at both ends of the reinforcement column (42); and the connecting plates (43) are fixed to the positioning sleeve (44).

7. The non-surge screen changer according to claim 6, characterized in that: A sliding mechanism is provided between the positioning sleeve (44) and the connecting column (6) to facilitate the sliding of the positioning sleeve (44), and the sliding mechanism comprises a plurality of fixing grooves provided inside the positioning sleeve (44) and rollers (45) installed inside the fixing grooves, and the rollers (45) cooperate with the connecting column (6).

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