Filtering device for vacuum drying of cable material

Abstract

The utility model relates to the technical field of cable material filtering, in particular to a filtering device for vacuum drying of cable materials, which comprises a base, a filter element, a linear motion mechanism and a sweeping piece. A communicating pipe is arranged on one side of the base, the filter element is fixedly arranged on the other side of the base, and the filter element is communicated with the communicating pipe through a through hole in the base; the linear motion mechanism comprises a guide rail and a movable block, at least one of the guide rail and the movable block forms a driving part so that the movable block can linearly move along the guide rail, the guide rail is located on the outer side of the filter element, the extending direction of the guide rail is consistent with the extending direction of the filter element, and the sweeping part is fixedly arranged on the side, facing the filter element, of the movable block and abuts against the filter element. In order to solve the technical problem that a filter screen of an existing filter device is blocked, the sweeping pieces capable of moving in the extending direction of the filter element are arranged on the periphery of the filter element, so that the sweeping pieces are used for automatically cleaning the surface of the filter element, dust accumulation is prevented, the vacuumizing effect is guaranteed, the starting time is greatly prolonged, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable material filtration technology, specifically to a filtration device for vacuum drying of cable materials. Background Technology

[0002] Two-step silane cross-linked polyethylene insulation material is typically divided into two components (referred to as component A and component B). To meet specific needs, some modifiers are added to the catalyst masterbatch of component B. However, some modifiers are temperature-sensitive; high-temperature drying can cause the material to clump and become unprocessable, necessitating the use of a low-temperature drying process like vacuum drying. The principle of vacuum drying is to use a vacuum pump to reduce the pressure inside the drying chamber, lowering the boiling point of the moisture in the material and causing it to evaporate at a lower temperature.

[0003] After prolonged use, it was found that the existing filtration device's filter screen is easily clogged by dust from the catalyst masterbatch during the feeding and vacuum drying processes. Once clogged, it cannot be cleaned in time unless the machine is shut down for maintenance, resulting in reduced vacuum pump efficiency and poorer drying effect, thus necessitating an increase in drying time. Furthermore, the dust contains a large amount of modifiers, which, if not cleaned promptly, will completely clog the filter screen, severely damage the vacuum pump, and significantly increase the difficulty of cleaning. Utility Model Content

[0004] To address the technical problem of difficult cleaning of existing filter screens after clogging, this utility model provides a filter device for vacuum drying of cable materials. It has a brush that can move along the extension direction of the filter element around the filter element, thereby automatically cleaning the surface of the filter element by the movement of the brush, preventing dust accumulation, ensuring vacuuming effect, greatly extending the start-up time, and improving production efficiency.

[0005] The technical solution provided by this utility model is as follows: a filtration device for vacuum drying of cable materials, comprising a base, a filter element, a linear motion mechanism, and a brush; a connecting pipe is provided on one side of the base, the filter element is fixedly disposed on the other side of the base, and the filter element and the connecting pipe are connected through a through hole on the base; the linear motion mechanism includes a guide rail and a movable block, at least one of the guide rail and the movable block constitutes a driving part to make the movable block move linearly along the guide rail, the guide rail is located outside the filter element, the extension direction of the guide rail is consistent with the extension direction of the filter element, and the brush is fixedly disposed on the side of the movable block facing the filter element, and the brush abuts against the filter element.

[0006] Optionally, the filter element includes a support layer and a metal mesh layer, the metal mesh layer being fixedly disposed on the outside of the support layer, and the brush abutting against the metal mesh layer.

[0007] Optionally, the support layer is formed by enclosing a perforated plate.

[0008] Optionally, a filter cartridge is fixedly mounted on the base, the filter cartridge is sleeved on the outside of the filter element, and the diameter of the filter hole on the filter cartridge is larger than the diameter of the filter hole on the filter element.

[0009] Optionally, the brush members on each of the movable blocks are stacked in at least one layer along the extension direction of the filter element.

[0010] Optionally, the linear motion mechanism is evenly arranged around the filter element so that the brushes on each of the movable blocks surround the filter element.

[0011] Optionally, the brush is a spring brush.

[0012] Optionally, a connecting flange is provided at the end of the connecting pipe opposite to the base.

[0013] Beneficial effects

[0014] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: In view of the technical problem of filter screen clogging in existing filter devices, this utility model sets up a brush that can move along the extension direction of the filter element around the filter element, thereby automatically cleaning the surface of the filter element by the movement of the brush, preventing dust accumulation, ensuring vacuuming effect, greatly extending the start-up time, and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of a filtration device for vacuum drying of cable materials proposed in an embodiment of this utility model.

[0016] Figure 2 This is a top view of the filter device for vacuum drying of cable materials proposed in an embodiment of the present invention.

[0017] Figure 3 This is the second schematic diagram of the structure of the filter device for vacuum drying of cable material proposed in this embodiment of the present invention. Detailed Implementation

[0018] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0019] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are provided for the convenience of describing the technical solution of this utility model and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this utility model.

[0020] Combined with appendix Figure 1-3 This embodiment proposes a filtration device for vacuum drying of cable materials, including a base 1, a filter element 2, a linear motion mechanism 3, and a brush 4.

[0021] A connecting pipe 5 is provided on one side of the base 1. The connecting pipe 5 is used to connect to vacuum equipment such as a vacuum pump. Generally, a connecting flange 7 can be provided on the end of the connecting pipe 5 away from the base 1 so as to connect to the vacuum equipment through the connecting flange 7.

[0022] The filter element 2 is fixedly installed on the other side of the base 1. The filter element 2 and the base 1 can be fixedly connected by a flange connection. The filter element 2 and the connecting pipe 5 are connected through the through hole on the base 1.

[0023] The linear motion mechanism 3 includes a guide rail 30 and a movable block 31. At least one of the guide rail 30 and the movable block 31 constitutes a driving part, causing the movable block 31 to move linearly along the guide rail 30. The guide rail 30 is located on the outside of the filter element 2, and the extending direction of the guide rail 30 is consistent with the extending direction of the filter element 2. The brush member 4 is fixedly disposed on the side of the movable block 31 facing the filter element 2, and the brush member 4 abuts against the filter element 2. Preferably, the brush member 4 is a spring brush.

[0024] The working principle of the filtration device for vacuum drying of cable material in this embodiment is as follows: when the filter element 2 needs to be cleaned, the linear motion mechanism 3 is activated, causing the movable block 31 to move linearly along the extension direction of the filter element 2. At this time, the brush 4 will move with the movement of the movable block 31. Since the brush 4 abuts against the filter element 2, it can brush the outer surface of the filter element 2, thereby solving the problem of the filter element 2 being blocked by dust from the catalytic masterbatch.

[0025] The linear motion mechanism 3 in this embodiment can employ various devices or apparatuses, such as a rack and pinion mechanism. The movable block 31 includes a motor and gears, meshing with a rack on the guide rail 30. In this case, the movable block 31 acts as a drive unit, enabling its linear motion through the motor's drive. Similarly, a linear motor can be used, where the energized movable block 31 constitutes the drive unit. Alternatively, a lead screw mechanism can be employed, where the guide rail 30 includes a lead screw portion. The lead screw is threaded into the movable block 31, and the lead screw connected to the motor rotates to form the drive unit, driving the movable block 31 to move.

[0026] In a preferred embodiment, the filter element 2 includes a support layer and a metal mesh layer. The metal mesh layer is fixedly disposed on the outside of the support layer, and the brush 4 abuts against the metal mesh layer. The outer metal mesh layer can be made of fine steel mesh, which is mainly used for filtering dust.

[0027] Furthermore, the structural strength of the support layer is greater than that of the metal mesh layer. The support layer can be constructed using perforated plates. The purpose of the support layer is to prevent the relatively weak metal mesh layer from deforming under negative pressure, thereby ensuring the filtration effect. The support layer also serves as the connection between the filter element 2 and the base 1. A flange can be installed at the bottom of the support layer, and the flange is fixedly connected to the base 1 with bolts.

[0028] In other embodiments, a filter cartridge 6 is fixedly mounted on the base 1. The filter cartridge 6 is sleeved on the outside of the filter element 2, and the bottom of the filter cartridge 6 can be fixedly connected to the base 1 via a flange. The diameter of the filter holes on the filter cartridge 6 is larger than the diameter of the filter holes on the filter element 2. In this embodiment, the filter cartridge 6 is used for preliminary filtration of larger particles during vacuum drying, forming a two-stage filtration structure with the filter element 2 to prevent large particles from clogging the filter element 2, and also to prevent large particles from entering the vacuum pump.

[0029] In another preferred embodiment, the brush members 4 on each movable block 31 are stacked in at least one layer along the extending direction of the filter element 2. A single layer of brush members 4 can basically meet the usage requirements, while using more layers of brush members 4 can achieve a better cleaning effect to a certain extent, helping to improve the brushing ability. At the same time, this arrangement can reduce the number of reciprocating movements of the movable blocks 31 on the linear motion mechanism 3, thereby improving the service life.

[0030] In other embodiments, the linear motion mechanism 3 is evenly arranged around the filter element 2, so that the brush members 4 on each movable block 31 surround the filter element 2. In this embodiment, it can be ensured that the brush members 4 in contact with the filter element 2 are all subjected to the force applied by the movable block 31, that is, the brushing force around the filter element 2 is balanced, and the filter element 2 is prevented from being severely blocked in some areas due to insufficient brushing force.

[0031] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A filter device for vacuum drying of cable compound, characterized in that, It includes a base (1), a filter element (2), a linear motion mechanism (3), and a brush (4); A connecting pipe (5) is provided on one side of the base (1), and the filter element (2) is fixedly provided on the other side of the base (1). The filter element (2) and the connecting pipe (5) are connected through the through hole on the base (1). The linear motion mechanism (3) includes a guide rail (30) and a movable block (31). At least one of the guide rail (30) and the movable block (31) constitutes a driving part to make the movable block (31) move linearly along the guide rail (30). The guide rail (30) is located on the outside of the filter element (2). The extension direction of the guide rail (30) is consistent with the extension direction of the filter element (2). The brush member (4) is fixedly disposed on the side of the movable block (31) facing the filter element (2). The brush member (4) abuts against the filter element (2).

2. A filter device for vacuum drying of cable compound according to claim 1, characterized in that The filter element (2) includes a support layer and a metal mesh layer. The metal mesh layer is fixedly disposed on the outside of the support layer, and the brush (4) abuts against the metal mesh layer.

3. A filter device for vacuum drying of cable compound according to claim 2, characterized in that The support layer is constructed by enclosing a perforated plate.

4. The filtering device for vacuum drying of cable compound according to claim 1, characterized in that, A filter cylinder (6) is fixedly installed on the base (1). The filter cylinder (6) is sleeved on the outside of the filter element (2). The diameter of the filter hole on the filter cylinder (6) is larger than the diameter of the filter hole on the filter element (2).

5. The filtering device for vacuum drying of cable compound according to claim 1, characterized in that, The brushes (4) on each of the movable blocks (31) are stacked in at least one layer along the extension direction of the filter element (2).

6. A filter device for vacuum drying of cable compound according to claim 1, characterized in that, The linear motion mechanism (3) is evenly arranged around the filter element (2) so that the brushes (4) on each of the movable blocks (31) surround the filter element (2).

7. The filtering device for vacuum drying of cable compound according to claim 1, characterized in that, The brush component (4) is a spring brush.

8. The filtering device for vacuum drying of cable compound according to claim 1, characterized in that, The connecting pipe (5) is provided with a connecting flange (7) at the end opposite to the base (1).

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