A web belt-type screen changer

Abstract

The utility model relates to a screen changer technical field, and disclose a kind of screen belt type screen changer, including screen changer body and cleaning part, and the through-hole is set in screen changer body, screen changer body side is provided with belt changing part, and belt changing part includes support plate, and the side fixed connection of support plate has at least two container parts, the placing cavity of the filter belt is formed in container part inside, and container part side is open to form the discharge hole for discharging filter belt, by the support plate rotation, make any one the discharge hole be in the side of through-hole;The utility model is equipped with container part, placing cavity, discharge hole and rotatable support plate, when the filter belt in the inside of one container part is finished, another container part with unused filter belt can be close to screen changer body, so that the device does not need to stop for a long time when using to place filter belt again, shorten preparation time, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of screen changer technology, and in particular to a belt-type screen changer. Background Technology

[0002] During plastic extrusion molding, the molten material often contains impurities such as unplasticized particles, gels, and metal fragments (particle size range 0.01-5mm). If these impurities are not effectively filtered, they will lead to product defects, such as crystal points in films, scratches on pipe surfaces, and decreased mechanical properties of profiles; they will also cause equipment wear, such as increased wear on the screw and barrel, and blockage of the die flow channels; and they may cause production accidents, such as impurities causing extruder shutdown or even equipment damage. Therefore, filtration equipment is needed, but this filtration method is prone to clogging, so the filter screen needs to be replaced regularly. To improve replacement efficiency, screen changers have emerged, and belt screen changers are one type of screen changer. This device replaces the filter screen by continuously moving the filter belt. Although this method can continuously replace the filter belt, the machine needs to be stopped and the filter belt repositioned after it is completely used up. Therefore, the setup time is long, reducing the efficiency of the device, and the entire filter belt needs to be discarded and replaced after clogging, resulting in high operating costs. Utility Model Content

[0003] This invention proposes a mesh belt filter changer to solve the problem of low filter belt replacement efficiency in existing devices.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mesh belt screen changer, comprising a screen changer body, wherein a through hole is provided on the screen changer body, and a belt changing component is provided on one side of the screen changer body. The belt changing component includes a support plate that rotates along a preset axis. At least two container parts are fixedly connected to one side of the support plate. The container parts form a placement cavity for accommodating filter belts, and one side of the container parts is open to form a discharge hole for discharging the filter belts. By rotating the support plate, any one of the discharge holes is positioned on one side of the through hole.

[0005] Preferably, the screen changer further includes a cleaning component for cleaning the filter bag. The screen changer body is located between the cleaning component and the support plate. The cleaning component includes a side shell, and a through-type mounting cavity is formed inside the side shell. A scraper for scraping the filter belt is provided inside the mounting cavity, and a perforated plate for spraying spray water is also installed inside the mounting cavity. A water inlet pipe is fixedly connected to one side of the perforated plate, and one end of the water inlet pipe extends to the outside of the side shell.

[0006] Preferably, the screen changer further includes a base plate, and the side shell and the bottom of the screen changer body are both fixedly connected to the top of the base plate.

[0007] Preferably, a motor is fixedly connected to the top of the substrate, the screen changer body is located between the motor and the side shell, and the output end of the motor is fixedly connected to the bottom of the support plate.

[0008] Preferably, the container portion includes a shell, the placement cavity and the discharge port are both formed on the shell, and a removable cover is placed on top of the placement cavity.

[0009] Preferably, a support rod is fixedly connected to the bottom of the placement cavity.

[0010] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0011] (1) This application is provided with a container part, a placement cavity, a discharge hole and a rotatable support plate. When the filter belt inside one of the container parts is used up, another container part carrying unused filter belt can be brought close to the screen changer body, so that the filter belt can be replaced without stopping the machine for a long time when the device is in use, shortening the preparation time of the device and improving work efficiency.

[0012] (2) This application is provided with a side shell, an installation cavity, a scraper, a perforated plate and a water inlet pipe. When the filter belt is blocked and discharged from the screen changer body, the filter belt is scraped by the scraper and sprayed with water through the perforated plate to clean the filter belt, so that the filter belt can be recycled and the filter belt does not need to be discarded and replaced after it is blocked, thus reducing the cost of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a perspective view of the present invention with the cleaning component and belt replacement component removed;

[0016] Figure 3 This is a perspective view of the cleaning component of this utility model;

[0017] Figure 4 This is a perspective view of the belt replacement component of this utility model;

[0018] In the figure: 1. Base plate; 2. Screen changer body; 3. Through hole; 4. Cleaning component; 41. Side shell; 42. Scraper; 43. Perforated plate; 44. Mounting cavity; 45. Water inlet pipe; 5. Belt changing component; 51. Support plate; 52. Motor; 53. Housing; 54. Placement cavity; 55. Discharge hole; 56. Support rod; 57. Cover plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-4 As shown, a mesh belt screen changer includes a screen changer body 2, with a through hole 3 on the screen changer body 2. A screen changing component 5 is provided on one side of the screen changer body 2. The screen changing component 5 includes a support plate 51 that rotates along a preset axis. At least two container parts are fixedly connected to one side of the support plate 51. The container parts form a placement cavity 54 for accommodating the filter belt, and one side of the container parts is open to form a discharge hole 55 for discharging the filter belt. By rotating the support plate 51, any one of the discharge holes 55 is positioned on one side of the through hole 3.

[0021] With the above technical solution, before use, the screen changer body 2 is fixed in the operating position and connected to the pipeline. Before the screen changer body 2 starts working, multiple filter belt rolls are placed in each container section. After the filter belt rolls are placed, the free end of the filter belt is pulled to discharge it through the discharge hole 55, and the free end of the filter belt is pulled to the outside of the placement cavity 54. By rotating the support plate 51, the container section is rotated, so that one discharge hole 55 is on one side of the through hole 3. Then, the free end of the filter belt is inserted into the through hole 3 on the screen changer body 2, and the free end of the filter belt is discharged from another through hole 3 on the screen changer body 2. After the screen changer body 2 starts working, and the filter belt inside the screen changer body 2 becomes clogged... As the filter belt continues to move forward, the clogged filter belt is moved to the outside of the screen changer body 2, and the filter belt inside the placement cavity 54 is pulled outward until the unused filter belt is moved into the screen changer body 2. Then the screen changer body 2 can continue to work. After the filter belt inside the current container part is completely used, the support plate 51 rotates, which in turn drives the container part to rotate, moving the current container part away from the through hole 3 and allowing other container parts to move closer to the through hole 3. Then the filter belt can continue to be inserted into the through hole 3. There is no need to stop the machine for a long time to place the filter belt. When the screen changer body 2 continues to work, the unclogged filter belt can be placed in the empty placement cavity 54 inside the container part, which shortens the maintenance time of the device and improves the working efficiency of the screen changer body 2.

[0022] Furthermore, in this invention, in order to clean the clogged filter belt, such as Figures 1-3 As shown, the screen changer also includes a cleaning component 4 for cleaning the filter bag. The screen changer body 2 is located between the cleaning component 4 and the support plate 51. The cleaning component 4 includes a side shell 41, and a through-type mounting cavity 44 is formed inside the side shell 41. A scraper 42 for scraping the filter belt is provided inside the mounting cavity 44, and a perforated plate 43 for spraying spray water is also installed inside the mounting cavity 44. A water inlet pipe 45 is fixedly connected to one side of the perforated plate 43, and one end of the water inlet pipe 45 extends to the outside of the side shell 41.

[0023] In this embodiment, the pipe for conveying spray water is connected to the inlet pipe 45. When the filter belt becomes clogged, the clogged filter belt is discharged from the through hole 3 on one side of the screen changer body 2 and moves into the side shell 41 through the mounting cavity 44. After the filter belt enters the mounting cavity 44, it is scraped by the scraper 42 to clean it. After the filter belt is cleaned, it is conveyed to the inlet pipe 45 through the spray water. The spray water is guided to the perforated plate 43 through the inlet pipe 45. The spray water is sprayed out through the perforated plate 43 and sprayed onto the filter belt to further clean it. This cleans the clogged filter belt. After cleaning, the filter belt is discharged through the opening of the mounting cavity 44 on one side of the side shell 41, allowing the filter belt to be recycled and reducing the cost of use.

[0024] To support the side shell 41 and the screen changer body 2, such as Figures 1-2 As shown, the screen changer also includes a base plate 1, and the bottom of the side shell 41 and the screen changer body 2 are all fixedly connected to the top of the base plate 1.

[0025] In this embodiment, when the device is in use, the side shell 41 and the screen changer body 2 are supported by the base plate 1, thereby making the device more stable during use.

[0026] In addition, regarding how the support plate 51 rotates in this utility model, as follows: Figure 1 , Figure 2 and Figure 4 As shown, a motor 52 is fixedly connected to the top of the substrate 1, the screen changer body 2 is located between the motor 52 and the side shell 41, and the output end of the motor 52 is fixedly connected to the bottom of the support plate 51.

[0027] In this embodiment, the motor 52 is supported by the base plate 1. When the filter belt in the current container part is used up, the motor 52 works to drive the support plate 51 to rotate, so that the support plate 51 drives the container part to rotate, thereby bringing the container part carrying the filter belt closer to the screen changer body 2 and moving the container part with the empty filter belt away from the screen changer body 2.

[0028] Specifically, in one embodiment, regarding the aforementioned container portion, such as Figure 4 As shown, the container part includes a shell 53, a placement cavity 54 and a discharge port 55, both of which are formed on the shell 53, and a removable cover plate 57 is placed on the top of the placement cavity 54.

[0029] In this embodiment, before using the device, remove the cover plate 57 to separate the cover plate 57 from the housing 53, then place the filter belt roll into the placement cavity 54 on the housing 53. After the filter belt roll is placed, pull the free end of the filter belt roll to discharge the filter belt through the discharge hole 55, and then place the cover plate 57 on the housing 53 to complete the placement of the filter belt roll.

[0030] After the filter belt roll is placed inside the placement cavity 54, in order to make the filter belt roll feeding smoother, such as Figure 4 As shown, a support rod 56 is fixedly connected to the bottom of the placement cavity 54. The support rod 56 supports the filter belt roll, making the filter belt roll unwinding more smoothly.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 mesh belt screen changer, comprising a screen changer body (2), wherein the screen changer body (2) has a through hole (3), characterized in that: The screen changer body (2) is provided with a belt changing component (5) on one side. The belt changing component (5) includes a support plate (51) that rotates along a preset axis. At least two container parts are fixedly connected to one side of the support plate (51). The container parts form a placement cavity (54) for accommodating the filter belt, and one side of the container parts is open to form a discharge hole (55) for discharging the filter belt. By rotating the support plate (51), any one of the discharge holes (55) is located on one side of the through hole (3).

2. The mesh belt screen changer according to claim 1, characterized in that: It also includes a cleaning component (4) for cleaning the filter bag. The screen changer body (2) is located between the cleaning component (4) and the support plate (51). The cleaning component (4) includes a side shell (41). A through-type mounting cavity (44) is formed inside the side shell (41). A scraper (42) for scraping the filter belt is provided inside the mounting cavity (44). A perforated plate (43) for spraying spray water is also installed inside the mounting cavity (44). A water inlet pipe (45) is fixedly connected to one side of the perforated plate (43). One end of the water inlet pipe (45) extends to the outside of the side shell (41).

3. A mesh belt screen changer according to claim 2, characterized in that: It also includes a substrate (1), and the bottom of the side shell (41) and the screen changer body (2) are both fixedly connected to the top of the substrate (1).

4. A mesh belt screen changer according to claim 3, characterized in that: A motor (52) is fixedly connected to the top of the substrate (1), the screen changer body (2) is located between the motor (52) and the side shell (41), and the output end of the motor (52) is fixedly connected to the bottom of the support plate (51).

5. A mesh belt screen changer according to claim 2 or 3, characterized in that: The container portion includes a shell (53), the placement cavity (54) and the discharge port (55) are both formed on the shell (53), and a removable cover plate (57) is placed on top of the placement cavity (54).

6. A mesh belt screen changer according to claim 5, characterized in that: A support rod (56) is fixedly connected to the bottom of the placement cavity (54).

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