Film laminating machine for filter cloth of filter press

Abstract

The utility model discloses a film laminating machine for filter cloth of a filter press, and relates to the technical field of filter cloth of filter presses, the film laminating machine comprises a workbench, a conveying roller, a moving roller and a plurality of support frames, and the support frames are fixed on the workbench; the device further comprises a film covering assembly, an air conveying connector, an extrusion roller, a connecting frame, an air nozzle and a fixing rod. The film covering assembly is fixed to the workbench, and the extrusion roller is rotationally connected to the supporting frame. The fixing rods are vertically fixed to the workbench, the connecting frame is fixed between the fixing rods, and the air nozzles are fixed to the connecting frame. An air conveying connector used for conveying air to the air nozzle is fixed to the fixing rod. The film covering assembly comprises a film covering box, a cover plate, a baffle, a heating rod, an upper film covering roller, a lower film covering roller, an upper storage cavity, a connecting cavity and a lower storage cavity. The film covering box is fixed to the workbench, and the cover plate is rotationally connected to an opening in the top of the film covering box. The upper side and the lower side of the filter cloth can be coated at the same time, the processing steps of filter bag coating are reduced, the production efficiency is improved, and meanwhile the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter cloth for filter presses, in particular to a film coating machine for filter cloth for filter presses. Background Art

[0002] Filter cloth is a filter medium made of natural or synthetic fibers. Common materials include cotton, linen, wool, silk, asbestos fiber, glass fiber and some synthetic fibers. Filter cloth plays a role of interception, separation and separation in the filter press. The filter cloth separates the liquid in the mixed liquid, and the solid particles passing through the filter cloth are intercepted by the filter cloth, thus separating the solid and liquid in the mixed liquid, achieving the effect of solid-liquid separation.

[0003] Filter cloth is an important material for filtering, separating and processing. In order to improve the performance of filter cloth, protect the quality of filter cloth and extend the service life, a protective film of special material is usually covered on the surface of filter cloth. In the prior art, the filter cloth is coated by first coating one side of the filter cloth and then turning the filter cloth over to coat the other side, which makes the processing process cumbersome and reduces the production efficiency. The existing equipment for coating both sides of the filter cloth at the same time has a complex structure and high production cost. Utility Model Content

[0004] The embodiment of the present application provides a laminating machine for filter cloth of a filter press, thereby solving the problem in the prior art that laminating the filter cloth requires laminating both sides of the filter cloth separately, which makes the laminating work cumbersome and thus affects the working efficiency of the filter cloth laminating. The embodiment of the present application realizes laminating the upper and lower sides of the filter cloth at the same time, reduces the processing steps of filter bag laminating, improves production efficiency, and can reduce production costs at the same time.

[0005] The embodiment of the present application provides a laminating machine for filter cloth of a filter press, comprising a workbench, a conveying roller, a moving roller and a support frame, wherein the support frame is multiple and fixed on the workbench;

[0006] It also includes a film covering component, a gas transmission interface, a squeezing roller, a connecting frame, an air nozzle and a fixing rod;

[0007] The laminating assembly is fixed on the workbench, and the squeezing roller is rotatably connected to the supporting frame;

[0008] The fixing rods are vertically fixed on the workbench, the connecting frame is fixed between the fixing rods, and the connecting frame is fixed with an air nozzle;

[0009] The fixing rod is fixed with an air supply interface for supplying air to the air nozzle, so that the surface of the filter cloth is coated and cooled;

[0010] The laminating assembly comprises a laminating box, a cover plate, a baffle, a heating rod, an upper laminating roller, a lower laminating roller, an upper storage chamber, a connecting chamber and a lower storage chamber;

[0011] The film laminating box is fixed on the workbench, the cover plate is rotatably connected to the top opening of the film laminating box, the upper storage cavity is connected to the top opening of the film laminating box, the upper storage cavity and the lower storage cavity are located in the film laminating box, and the connecting cavity connects the upper film laminating box and the lower film laminating box;

[0012] The side wall of the film laminating box is provided with a through opening, and the baffle is fixed at the opening;

[0013] Heating rods for heating the coating material are fixed in the upper storage chamber and the lower storage chamber to keep the coating material at a certain temperature and in a liquid state;

[0014] The upper coating roller and the lower coating roller are rotatably connected in the coating box and are respectively connected in the upper storage cavity and the lower storage cavity. The filter cloth moves in the coating box, and the upper coating roller and the lower coating roller rotate to make the liquid coating material adhere to the filter cloth, thereby coating the filter cloth.

[0015] Furthermore, the laminating assembly also includes a cleaning plate and a rotating roller;

[0016] The cleaning plate is fixed on the baffle plate on the side close to the conveying roller, and the rotating roller is rotatably connected to the baffle plate on the side away from the conveying roller;

[0017] The baffle is a rectangular plate.

[0018] Furthermore, an opening is provided in the middle of the baffle plate for the filter cloth to pass through, and the cleaning plate and the rotating roller are respectively located at the upper and lower sides of the opening on the baffle plate.

[0019] Further, the moving roller is rotatably connected to the support frame;

[0020] The support frame is rotatably connected to a conveying roller for driving the filter cloth to move;

[0021] The conveying roller and the moving roller are respectively located at two end positions of the workbench.

[0022] Furthermore, the squeezing roller is a cylindrical roller, and there are multiple squeezing rollers;

[0023] The squeezing rollers are rotatably connected to the support frame, and the squeezing rollers are located on both sides of the film coating box. The squeezing rollers can flatten the filter cloth so that the film coating material can be evenly applied to the surface of the filter cloth. At the same time, the squeezing rollers can flatten the film coating material on the surface of the filter cloth, and the film coating material is polypropylene;

[0024] The squeezing rollers are rotatably connected to the support frame in a group of two and are used to flatten the filter cloth.

[0025] Furthermore, the air nozzle is fixed on the upper and lower side walls of the connecting frame, so that the liquid coating material on the filter cloth is cooled, solidified and adhered to the filter cloth;

[0026] There are two connecting frames;

[0027] A gas transmission channel is provided inside the fixing rod;

[0028] The gas delivery interface is connected to the gas delivery channel and is connected to the gas nozzle.

[0029] Furthermore, an opening having the same size as that of the upper film-coating roller is formed on the lower side of the upper storage chamber, and an opening having the same size as that of the lower film-coating roller is formed on the upper side of the lower storage chamber.

[0030] Furthermore, a cotton brush layer is attached to the upper coating roller and the lower coating roller, and the liquid coating material is adhered through the cotton brush layer and smeared on the surface of the filter cloth.

[0031] Furthermore, the heating rod is a cylindrical rod with a built-in heating resistance wire, so that the coating material remains in a liquid state.

[0032] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0033] The liquid coating material is placed in the coating box, the conveying roller drives the filter forward, the surface of the filter cloth is flattened by the squeezing roller, and the surface of the filter cloth is cleaned by the cleaning plate. The filter cloth enters the coating box, and the coating material is smeared on the surface of the filter cloth under the action of the upper coating roller and the lower coating roller, and air is blown to both sides of the filter cloth through the air nozzle to solidify and fix the coating material on the surface of the filter cloth. The problem that the coating of the filter cloth in the prior art needs to be coated on both sides of the filter cloth separately, which makes the coating work cumbersome and thus affects the working efficiency of the filter cloth coating is effectively solved. The upper and lower sides of the filter cloth are coated at the same time, which reduces the processing steps of the filter bag coating, improves the production efficiency, and reduces the production cost at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a film laminating machine for filter cloth of a filter press according to the utility model;

[0035] Figure 2 This is a schematic structural diagram of a film laminating assembly of a film laminating machine for filter cloth of a filter press according to the utility model;

[0036] Figure 3 This is a schematic cross-sectional structural diagram of a laminating assembly of a laminating machine for filter cloth of a filter press according to the utility model;

[0037] Figure 4 This is a schematic diagram of the overall cross-sectional structure of a laminating machine for filter cloth of a filter press according to the utility model;

[0038] Figure 5 This is a schematic diagram of the connection relationship between the connecting frame and the workbench of a laminating machine for filter cloth of a filter press according to the utility model;

[0039] Figure 6 The utility model is a schematic diagram of the internal structure of a film laminating box of a film laminating machine for filter cloth of a filter press.

[0040] In the figure: 1. workbench; 2. conveying roller; 3. support frame; 4. air supply interface; 5. squeezing roller; 6. moving roller; 7. connecting frame; 8. air nozzle; 9. fixing rod; 10. cover plate; 11. laminating box; 12. baffle; 13. rotating roller; 14. heating rod; 15. upper laminating roller; 16. lower laminating roller; 17. upper storage chamber; 18. cleaning plate; 19. connecting chamber; 20. laminating assembly; 21. lower storage chamber. DETAILED DESCRIPTION

[0041] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0042] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0044] like Figures 1 to 6 As shown, the present application proposes a laminating machine for filter cloth of a filter press, comprising a workbench 1, a conveying roller 2, a moving roller 6 and a support frame 3, wherein the support frame 3 is multiple and fixed on the workbench 1;

[0045] It also includes a film-covering assembly 20, an air supply interface 4, an extrusion roller 5, a connecting frame 7, an air nozzle 8 and a fixing rod 9; the film-covering assembly 20 is fixed on the workbench 1, and the extrusion roller 5 is rotatably connected to the supporting frame 3;

[0046] The fixing rods 9 are vertically fixed on the workbench 1, the connecting frame 7 is fixed between the fixing rods 9, and the connecting frame 7 is fixed with an air nozzle 8, through which air is blown to the surface of the filter cloth to cool and solidify the coating material on the surface of the filter cloth; the fixing rods 9 are fixed with an air supply interface 4 for supplying air to the air nozzle 8;

[0047] The laminating assembly 20 includes a laminating box 11, a cover plate 10, a baffle 12, a heating rod 14, an upper laminating roller 15, a lower laminating roller 16, an upper storage chamber 17, a connecting chamber 19 and a lower storage chamber 21; the laminating box 11 is fixed on the workbench 1, the cover plate 10 is rotatably connected to the top opening of the laminating box 11, and liquid laminating material is added into the laminating box 11 through the opening. The laminating material is liquid polypropylene. The upper storage chamber 17 is connected to the top opening of the laminating box 11. The upper storage chamber 17 and the lower storage chamber 21 are located in the laminating box 11, and the connecting chamber 19 connects the upper laminating box 11 with the lower laminating box 11; a through opening is provided on the side wall of the laminating box 11, and the baffle 12 is fixed at the opening; heating rods for heating the laminating material are fixed in the upper storage chamber 17 and the lower storage chamber 21; the upper laminating roller 15 and the lower laminating roller 16 are rotatably connected in the laminating box 11, and are respectively connected in the upper storage chamber 17 and the lower storage chamber 21.

[0048] Preferably, the laminating assembly 20 further includes a cleaning plate 18 and a rotating roller 13;

[0049] The cleaning plate 18 is fixed on the baffle plate 12 on the side close to the conveying roller 2 to clean the dust particles on the surface of the filter cloth. The rotating roller 13 is rotatably connected to the baffle plate 12 on the side away from the conveying roller 2 to clean the excess coating material on the surface of the filter cloth.

[0050] The baffle 12 is a rectangular plate.

[0051] Preferably, an opening is provided in the middle of the baffle 12 for the filter cloth to pass through, and the cleaning plate 18 and the rotating roller 13 are respectively located on the upper and lower sides of the opening on the baffle 12 .

[0052] Preferably, the moving roller 6 is rotatably connected to the support frame 3, and the moving roller 6 drives the coated filter cloth to move forward;

[0053] The support frame 3 is rotatably connected with a conveying roller 2 for driving the filter cloth to move;

[0054] The conveying roller 2 and the moving roller 6 are respectively located at both end positions of the workbench 1 .

[0055] Preferably, the squeezing roller 5 is a cylindrical roller, and there are multiple squeezing rollers 5;

[0056] The squeezing roller 5 is rotatably connected to the support frame 3, and the squeezing roller 5 is located on both sides of the film laminating box 11;

[0057] The squeezing rollers 5 are rotatably connected to the support frame 3 in a group of two and are used to flatten the filter cloth.

[0058] Preferably, the air nozzle 8 is fixed on the upper and lower side walls of the connecting frame 7, and air is blown to the filter cloth through the air nozzle 8 to solidify the polypropylene on the surface of the filter cloth and adhere to the filter cloth. The airflow ejected from the air nozzle 8 is weak, thereby avoiding uneven coating of the filter cloth due to excessive airflow;

[0059] There are two connecting frames 7;

[0060] A gas transmission channel is provided inside the fixing rod 9;

[0061] The gas delivery interface 4 is connected to the gas delivery channel and is connected to the gas nozzle 8 .

[0062] Preferably, an opening having the same size as that of the upper laminating roller 15 is opened on the lower side of the upper storage chamber 17 , and an opening having the same size as that of the lower laminating roller 16 is opened on the upper side of the lower storage chamber 21 .

[0063] Preferably, a cotton brush layer is attached to the upper laminating roller 15 and the lower laminating roller 16, and the cotton brush layer can adhere to the polypropylene solution and apply the solution to the surface of the filter cloth.

[0064] Preferably, the heating rod 14 is a cylindrical rod with a built-in heating resistance wire. The heating rod 14 is used to maintain a suitable temperature in the coating box 11 to ensure that the polypropylene remains in a liquid state.

[0065] In actual use, a laminating machine for filter cloth of a filter press according to an embodiment of the present application:

[0066] First, pour liquid polypropylene into the upper storage chamber 17 in the film coating box 11, and the polypropylene will enter the lower storage chamber 21 through the connecting chamber 19. The upper and lower storage chambers 21 are kept at a suitable temperature through the heating rod 14 to keep the polypropylene in liquid state. The conveying roller 2 drives the filter cloth to move forward, is flattened by the squeezing roller 5, and then enters the film coating box 11. The cleaning plate 18 fixed on the baffle 12 cleans the filter cloth and cleans the dust on the surface of the filter cloth to avoid affecting the coating quality. As the filter cloth moves, the upper film coating roller 15 and the lower film coating roller 16 rotate to apply the polypropylene in the upper storage chamber 17 and the lower storage chamber 21 to the surface of the filter cloth respectively, and the excess polypropylene is cleaned off under the action of the rotating roller 13, and then is flattened by the squeezing roller 5 to ensure that there are no bubbles in the film coating on the surface of the filter cloth. The air nozzle 8 blows air to the filter cloth to cool and solidify the polypropylene and adhere to the surface of the filter cloth, and then the filter cloth is driven by the moving roller 6 to move to the next process.

[0067] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A laminating machine for filter cloth of a filter press, comprising a workbench (1), a conveying roller (2), a moving roller (6) and a support frame (3), wherein the support frames (3) are multiple and fixed on the workbench (1); It is characterized in that It also includes a film coating assembly (20), an air transmission interface (4), a squeezing roller (5), a connecting frame (7), an air nozzle (8) and a fixing rod (9); The laminating assembly (20) is fixed on the workbench (1), and the squeezing roller (5) is rotatably connected to the support frame (3); The fixing rods (9) are vertically fixed on the workbench (1), the connecting frame (7) is fixed between the fixing rods (9), and the connecting frame (7) is fixed with an air nozzle (8); The fixing rod (9) is fixed with a gas supply interface (4) for supplying gas to the gas nozzle (8); The laminating assembly (20) comprises a laminating box (11), a cover plate (10), a baffle (12), a heating rod (14), an upper laminating roller (15), a lower laminating roller (16), an upper storage chamber (17), a connecting chamber (19) and a lower storage chamber (21); The film laminating box (11) is fixed on the workbench (1), the cover plate (10) is rotatably connected to the top opening of the film laminating box (11), the upper storage chamber (17) is connected to the top opening of the film laminating box (11), the upper storage chamber (17) and the lower storage chamber (21) are located in the film laminating box (11), and the connecting chamber (19) connects the upper film laminating box (11) and the lower film laminating box (11); The side wall of the film laminating box (11) is provided with a through opening, and the baffle (12) is fixed at the opening; Heating rods for heating the coating material are fixed in the upper storage chamber (17) and the lower storage chamber (21); The upper film-coating roller (15) and the lower film-coating roller (16) are rotatably connected in the film-coating box (11), and are respectively connected in the upper storage chamber (17) and the lower storage chamber (21).

2. A film laminating machine for filter cloth of a filter press according to claim 1, characterized in that: The laminating assembly (20) further comprises a cleaning plate (18) and a rotating roller (13); The cleaning plate (18) is fixed on the baffle (12) on the side close to the conveying roller (2), and the rotating roller (13) is rotatably connected to the baffle (12) on the side away from the conveying roller (2); The baffle (12) is a rectangular plate.

3. A laminating machine for filter cloth of a filter press according to claim 2, characterized in that: An opening is provided in the middle of the baffle (12) for allowing the filter cloth to pass through, and the cleaning plate (18) and the rotating roller (13) are respectively located on the upper and lower sides of the opening on the baffle (12).

4. A film laminating machine for filter cloth of a filter press according to claim 1, characterized in that: The movable roller (6) is rotatably connected to the support frame (3); The support frame (3) is rotatably connected to a conveying roller (2) for driving the filter cloth to move; The conveying roller (2) and the moving roller (6) are respectively located at the two end positions of the workbench (1).

5. A laminating machine for filter cloth of a filter press as claimed in claim 4, characterized in that: The squeezing roller (5) is a cylindrical roller, and there are multiple squeezing rollers (5); The squeezing roller (5) is rotatably connected to the support frame (3), and the squeezing roller (5) is located on both sides of the film laminating box (11); The squeezing rollers (5) are rotatably connected to the support frame (3) in a group of two and are used to flatten the filter cloth.

6. A film laminating machine for filter cloth of a filter press according to claim 1, characterized in that: The air nozzle (8) is fixed on the upper and lower side walls of the connecting frame (7); There are two connecting frames (7); A gas transmission channel is provided inside the fixing rod (9); The gas delivery interface (4) is connected to the gas delivery channel and is connected to the gas nozzle (8).

7. A film laminating machine for filter cloth of a filter press according to claim 1, characterized in that: The lower side of the upper storage chamber (17) is provided with an opening of the same size as the upper film-coating roller (15), and the upper side of the lower storage chamber (21) is provided with an opening of the same size as the lower film-coating roller (16).

8. A film laminating machine for filter cloth of a filter press according to claim 7, characterized in that: Cotton brush layers are pasted on the upper laminating roller (15) and the lower laminating roller (16).

9. A film laminating machine for filter cloth of a filter press according to claim 1, characterized in that: The heating rod (14) is a cylindrical rod with a built-in heating resistance wire.

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