Calender dust removal system

Abstract

A calender dust removal system comprises a rack, a fixed pressing roller is arranged on the rack, a movable pressing roller is arranged above the fixed pressing roller, the movable pressing roller is arranged on the rack through a lifting mechanism, conveying lines are arranged on the front side and the rear side of the rack, an upper scraper is arranged on the lifting mechanism, a dust removal brush is arranged on one side of the upper scraper, and the dust removal brush is located above the conveying lines. An upper blowing assembly is arranged on the side, away from the movable pressing roller, of the dust removal brush, a lower scraper is arranged at the end, close to the fixed pressing roller, of the conveying line, a lower blowing assembly is arranged on the rack below the lower scraper, a fan cover is arranged above the rack, and an exhaust fan is arranged on the top of the fan cover. According to the utility model, dust adhered to a material sheet, the movable compression roller and the fixed compression roller is firstly stripped, then the stripped dust is blown by the blowing device, and finally the dust is extracted by the exhaust fan, so that the dust removal effect of a calendaring operation area is improved; and meanwhile, the dust removal brush synchronously ascends and descends along with the movable pressing roller, and the cleaning effect on dust on the material sheets can be guaranteed after the rolling thickness is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of calendering equipment technology, and in particular to a dust removal system for a calendering machine. Background Technology

[0002] Calendering dust control refers to the use of various dust removal equipment and technologies during the calendering process to control and reduce dust emissions, thereby improving production efficiency and product quality. Common dust removal measures include:

[0003] Pre-dust removal of sheet material: Before calendering, the surface of the sheet material is cleaned using a brush cleaning and multi-point collection system to remove accumulated fine powder.

[0004] Roller surface cleaning: Use a scraper to regularly remove dust from the roller surface.

[0005] The above methods have many problems when performing dust removal. First, the dust removed by scraping or brushing will accumulate on the surface and needs to be cleaned frequently. Second, when the thickness of the calender changes, the scraper and brush need to be adjusted simultaneously, which is cumbersome.

[0006] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a dust removal system for calenders to solve the above problems.

[0007] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and for the convenience of those skilled in the art to understand it. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content

[0008] To overcome the shortcomings of the prior art, the present invention discloses a dust removal system for a calender, which solves the problems of dust accumulation and difficulty in debugging the dust removal device during long-term use in traditional calender operations.

[0009] This utility model discloses a dust removal system for a calender, including a frame, a fixed pressure roller rotatably connected to the frame, a movable pressure roller above the fixed pressure roller, the movable pressure roller being mounted on the frame via a lifting mechanism, conveyor lines on the front and rear sides of the frame, an upper scraper connected to the lifting mechanism, the upper scraper being slidably connected to the surface of the movable pressure roller, a dust removal brush connected to one side of the upper scraper, the end of the dust removal brush being located above the conveyor line, an upper air blowing assembly on the side of the frame away from the movable pressure roller, the air blowing port of the upper air blowing assembly facing the end of the dust removal brush, a lower scraper on the end of the conveyor line close to the fixed pressure roller, the lower scraper being slidably connected to the surface of the fixed pressure roller, a lower air blowing assembly on the frame below the lower scraper, the air blowing port of the lower air blowing assembly being positioned towards the connection gap between the scraper and the fixed pressure roller, a wind hood on the top of the frame, and an exhaust fan on the top of the wind hood.

[0010] Preferred technical solution: There are two sets of upper scraper and dust removal brushes, which are respectively set on the front and rear sides of the frame to ensure the overall dust removal effect of the calender.

[0011] Preferred technical solution: The upper scraper is connected to the lifting mechanism via a mounting bracket, and the dust removal brush is adjustable up and down on the mounting bracket for easy adjustment.

[0012] Preferred technical solution: There are two sets of upper and lower air blowing components, which are respectively set on the front and rear sides of the frame to ensure the overall dust removal effect of the calender.

[0013] Preferred technical solution: The upward air blowing assembly includes a first fixed frame, on which a first exhaust pipe is provided along the axial direction of the moving pressure roller. The end of the first exhaust pipe is connected to the air supply pipeline. Several upward air blowing holes are provided on the outer side of the first exhaust pipe along the axial direction of the moving pressure roller. The opening direction of the upward air blowing holes faces the end of the dust removal brush. The downward air blowing assembly includes a second fixed frame, on which a second exhaust pipe is provided along the axial direction of the fixed pressure roller. The end of the second exhaust pipe is connected to the air supply pipeline. Several downward air blowing holes are provided on the outer side of the second exhaust pipe along the axial direction of the fixed pressure roller. The opening direction of the downward air blowing holes faces the connection gap between the scraper and the fixed pressure roller, thereby increasing the effect of airflow on the connection gap and making it easier for dust to be carried away by the airflow.

[0014] A preferred technical solution: the first exhaust pipe is rotatably mounted on the first fixed frame, and the second exhaust pipe is rotatably mounted on the second fixed frame, so that the blowing direction of the first exhaust pipe can be freely adjusted.

[0015] Preferred technical solution: The exhaust fan is an explosion-proof fan to reduce the risk of fire and explosion.

[0016] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0017] This utility model discloses a dust removal system for a calender. It utilizes an upper scraper to remove dust from the surface of the moving pressure roller, and a dust brush to sweep and remove dust adhering to the material sheets on the conveyor line. The upper scraper and dust brush are raised and lowered synchronously with the moving pressure roller, ensuring that the gap between the dust brush and the conveyor line changes synchronously with the change in the gap between the moving and stationary pressure rollers. This guarantees effective cleaning of the material sheets before and after the calender. An upper air blowing assembly blows away dust from the dust brush and the material sheets, and a fan hood in conjunction with an exhaust fan quickly removes floating dust from the calendering area. Similarly, a lower scraper removes dust from the surface of the stationary pressure roller, and a lower air blowing assembly blows away dust from the lower scraper. The fan hood in conjunction with an exhaust fan quickly removes floating dust from the calendering area. This utility model first removes dust adhering to the material sheets, moving pressure roller, and stationary pressure roller, then uses an air blowing device to blow away the removed dust, and finally uses an exhaust fan to remove the dust, thereby improving the dust removal effect in the calendering operation area. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a dust removal system for a calendering machine according to the present invention;

[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0021] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle;

[0022] Figure 4 This is a longitudinal sectional view of a dust removal system for a calendering mill according to the present invention;

[0023] Figure 5 for Figure 4 A magnified view of a portion of point C in the middle;

[0024] Figure 6 This is a schematic diagram of the upper scraper and dust removal brush.

[0025] In the above attached figures, 100 is the frame; 101 is the upper air blowing assembly; 101a is the first fixed frame; 101b is the first exhaust pipe; 101c is the upper air blowing port; 102 is the lower air blowing assembly; 102a is the second fixed frame; 102b is the second exhaust pipe; 102c is the lower air blowing port; 103 is the fan hood; 104 is the exhaust fan; 1 is the fixed pressure roller; 2 is the moving pressure roller; 3 is the lifting mechanism; 4 is the conveyor line; 41 is the lower scraper; 5 is the upper scraper; 6 is the dust removal brush; and 7 is the mounting frame. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0030] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Example:

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, this utility model discloses a dust removal system for a calender, including a frame 100. A fixed pressure roller 1 is rotatably connected to the frame 100, and a movable pressure roller 2 is located above the fixed pressure roller 1. The movable pressure roller 2 is mounted on the frame 100 via a lifting mechanism 3. Conveyor lines 4 are located on the front and rear sides of the frame 100. An upper scraper 5 is also connected to the lifting mechanism 3. The upper scraper 5 is slidably connected to the surface of the movable pressure roller 2. A dust removal brush 6 is connected to one side of the upper scraper 5. The end of the dust removal brush 6 is located above the conveyor line 4 and away from the movable pressure roller 2. An upward air blowing assembly 101 is provided on one side of the frame 100. The air blowing port of the upward air blowing assembly 101 faces the end of the dust removal brush 6. A lower scraper 41 is provided at the end of the conveyor line 4 that is close to the pressure roller 1. The lower scraper 41 is slidably connected to the surface of the pressure roller 1. A lower air blowing assembly 102 is provided on the frame 100 below the lower scraper 41. The air blowing port of the lower air blowing assembly 102 is set towards the connection gap between the scraper 41 and the pressure roller 1. A wind hood 103 is provided above the frame 100. An exhaust fan 104 is provided on the top of the wind hood 103.

[0034] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the usage method and principle of this utility model are described below:

[0035] During calender operation, the blade at the front end of the upper scraper 5 slides against the surface of the moving pressure roller 2 to scrape off the dust adhering to it. The end of the dust removal brush 6 contacts the sheet material on the conveyor line 4, peeling off the dust adhering to its surface during the sheet material conveying process. At the same time, the air blowing port of the upper air blowing assembly 101 blows air towards the end of the dust removal brush 6, and the resulting airflow carries the dust towards the middle of the calender. The blade at the front end of the lower scraper 41 slides against the surface of the fixed pressure roller 1 to scrape off the dust adhering to it. The air blowing port of the lower air blowing assembly 102 blows air towards the connection gap between the scraper 41 and the fixed pressure roller 1, and the resulting airflow also carries the dust towards the middle of the calender. The exhaust fan 104 above the frame 100, together with the hood 103, draws air from above the middle of the calender, forming an upward airflow that lifts the dust and draws it away from the exhaust fan 104.

[0036] When adjusting the thickness of the calender, the upper scraper 5 moves synchronously with the moving pressure roller 2, so that the end of the upper scraper 5 always keeps in close contact with the surface of the moving pressure roller 2. Similarly, the dust removal brush 6 also moves synchronously with the moving pressure roller 2, so that the change in the distance between the moving pressure roller 2 and the fixed pressure roller 1 and the change in the distance between the dust removal brush 6 and the conveyor line 4 are consistent. This ensures that even after the thickness of the sheet changes, it can still maintain good contact with the end of the dust removal brush 6, thereby ensuring a stable dust removal effect on the sheet.

[0037] like Figure 1 and Figure 4 As shown, in order to further improve the dust removal effect of the dust removal system, there are two sets of upper scraper 5 and dust removal brush 6, which are respectively set on the front and rear sides of the frame 100, so that the dust removal effect is consistent when the calender moves in the forward and reverse directions.

[0038] like Figure 1 , Figure 4 and Figure 6 As shown, to facilitate the adjustment of the dust removal brush, the upper scraper 5 is connected to the lifting mechanism 3 through the mounting bracket 7, and the dust removal brush 6 is mounted on the mounting bracket 7 in an adjustable manner.

[0039] like Figure 1 and Figure 4 As shown, in order to further improve the dust removal effect of the dust removal system, there are two sets of upper air blowing assembly 101 and lower air blowing assembly 102, which are respectively set on the front and rear sides of the frame 100.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, to further improve the dust removal effect of the dust removal system, the upper air blowing assembly 101 includes a first fixed frame 101a. A first exhaust pipe 101b is provided on the first fixed frame 101a along the axial direction of the moving pressure roller 2. The end of the first exhaust pipe 101b is connected to the air supply pipeline. A plurality of upper air blowing holes 101c are provided on the outer side of the first exhaust pipe 101b along the axial direction of the moving pressure roller 2. The opening direction of the upper air blowing holes 101c faces the end of the dust removal brush 6. The lower air blowing assembly 102 includes a second fixed frame 102a. A second exhaust pipe 102b is provided along the axial direction of the pressure roller 1 on 2a. The end of the second exhaust pipe 102b is connected to the air supply pipe. A number of downward air blowing holes 102c are provided on the outer side of the second exhaust pipe 102b along the axial direction of the pressure roller 1. The opening direction of the downward air blowing holes 102c is set towards the connection gap between the scraper 41 and the pressure roller 1, so that the airflow generated by blowing can be directly aimed at the connection gap, which improves the impact force on dust and allows the airflow to flow directly through the gap, so that the flow speed of the airflow is not disturbed too much.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, to facilitate adjustment of the blowing direction, the first exhaust pipe 101b is rotatably mounted on the first fixed frame 101a, and the second exhaust pipe 102b is rotatably mounted on the second fixed frame 102a.

[0042] like Figure 1 and Figure 4 As shown, to improve the safety of the dust removal system, the exhaust fan 104 is an explosion-proof fan to avoid combustion or explosion problems.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A calender dust removal system, comprising a rack (100), a fixed pressure roller (1) rotatably connected to the rack (100), a movable pressure roller (2) arranged above the fixed pressure roller (1), the movable pressure roller (2) being arranged on the rack (100) by a lifting mechanism (3), and a conveying line (4) arranged on the front and back sides of the rack (100). The lifting mechanism (3) is further connected with an upper doctor blade (5), the upper doctor blade (5) is in sliding connection with the surface of the dynamic pressure roller (2), one side of the upper doctor blade (5) is connected with a dust removal brush (6), the end of the dust removal brush (6) is located above the conveying line (4), an upper air blowing assembly (101) is arranged on the rack (100) away from the dynamic pressure roller (2) side of the dust removal brush (6), the air blowing port of the upper air blowing assembly (101) faces the end of the dust removal brush (6), a lower doctor blade (41) is arranged at one end of the conveying line (4) close to the constant pressure roller (1), the lower doctor blade (41) is in sliding connection with the surface of the constant pressure roller (1), a lower air blowing assembly (102) is arranged on the rack (100) below the lower doctor blade (41), the air blowing port of the lower air blowing assembly (102) faces the connecting gap between the doctor blade (41) and the constant pressure roller (1), a wind cover (103) is arranged above the rack (100), and an exhaust fan (104) is arranged on the top of the wind cover (103).

2. A calender dust removal system according to claim 1, characterized in that: The upper doctor blade (5) and the dust removal brush (6) are two groups and are arranged on the front and rear sides of the rack (100) respectively.

3. A calender dust removal system according to claim 2, wherein: The upper doctor blade (5) is connected with the lifting mechanism (3) through a mounting frame (7), and the dust removal brush (6) is arranged on the mounting frame (7) and can be adjusted up and down.

4. A calender dust removal system according to claim 3, wherein: The upper air blowing assembly (101) and the lower air blowing assembly (102) are two groups and are arranged on the front and rear sides of the rack (100) respectively.

5. A calender dust removal system according to claim 4, wherein: The upper air blowing assembly (101) comprises a first fixing frame (101a), a first exhaust pipe (101b) is arranged on the first fixing frame (101a) and extends along the axial direction of the dynamic pressure roller (2), the end of the first exhaust pipe (101b) is connected with a gas supply pipeline, a plurality of upper air blowing holes (101c) are arranged on the outer side of the first exhaust pipe (101b) and extend along the axial direction of the dynamic pressure roller (2), and the opening direction of the upper air blowing holes (101c) faces the end of the dust removal brush (6); the lower air blowing assembly (102) comprises a second fixing frame (102a), a second exhaust pipe (102b) is arranged on the second fixing frame (102a) and extends along the axial direction of the constant pressure roller (1), the end of the second exhaust pipe (102b) is connected with a gas supply pipeline, and a plurality of lower air blowing holes (102c) are arranged on the outer side of the second exhaust pipe (102b) and extend along the axial direction of the constant pressure roller (1); and the opening direction of the lower air blowing holes (102c) faces the connecting gap between the doctor blade (41) and the constant pressure roller (1).

6. A calender dust removal system according to claim 5, wherein: The first exhaust pipe (101b) is arranged on the first fixing frame (101a) and can rotate in the circumferential direction, and the second exhaust pipe (102b) is arranged on the second fixing frame (102a) and can rotate in the circumferential direction.

7. A calender dust removal system according to claim 1, wherein: The exhaust fan (104) is an explosion-proof fan.

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