Plastic melt impurity-preventing centralized filtering device

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a plastic melt impurity concentrated filtering device which comprises a filtering tank, end covers are connected to the two ends of the filtering tank in a sealed mode, through holes are formed in the end covers, and a filtering part is arranged in the filtering tank and used for counteracting the influence of backpressure, so that the flowing efficiency of a melt in a fluid channel is consistent, and the filtering effect is good. The filtering component comprises a flow guide frame connected into the filtering tank and a plurality of groups of spirally arranged fluid grooves connected to filtering discs on the flow guide frame, the fluid grooves can spirally guide input fluid, the fluid is spirally conveyed, the flowing area of the fluid is reduced, and the influence of back pressure is counteracted; impurities are not prone to being concentrated in a certain area through the multiple sets of spirally-arranged fluid grooves, then it is guaranteed that materials can be repeatedly stirred for multiple times, the left ends of the fluid grooves are communicated with a collecting pipe, the collecting pipe is arranged corresponding to the through hole in the left side, and the collecting pipe serves as a fluid guiding channel and conveys filtered fluid to a flow guiding pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a plastic melt anti-impurity concentration filtering device. Background Art

[0002] Before the plastic film is formed, it is necessary to filter the melt to remove larger particulate impurities. After the treated melt enters the vacuum chamber, it enters the corresponding equipment to complete the forming. Therefore, a melt filtering device is used.

[0003] In the existing filtering device, the flow guide frame inside the filtering tank is mostly designed with a straight groove structure. When it is used for filtering, impurities will adhere and concentrate, which is likely to cause material blockage, blocking the flow guide groove of the flow guide frame. Long-term blockage will affect the subsequent filtering effect and cause the overall filtering tank to be blocked. Therefore, there is an urgent need to provide a plastic melt anti-impurity concentration filtering device. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a plastic melt anti-impurity concentration filtering device. The spiral-shaped fluid grooves can guide the input fluid in a spiral manner, convey the fluid in a spiral shape, reduce the flow area of the fluid, offset the influence of back pressure, and moreover, multiple groups of spiral-shaped fluid grooves can prevent impurities from concentrating in a certain area, thereby ensuring that the material can be stirred repeatedly. The left end of the fluid groove is connected to a confluence pipe, and the confluence pipe is arranged corresponding to the through hole on the left side. The confluence pipe serves as a fluid guiding channel to convey the filtered fluid to the guiding pipe.

[0006] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0007] A plastic melt anti-impurity concentration filtering device, comprising:

[0008] A filtering tank as a filtering chamber, both ends of the filtering tank are hermetically connected with end covers, and through holes are opened on the end covers;

[0009] A filtering component, placed inside the filtering tank, used to offset the influence of back pressure and make the flow efficiency of the melt in the fluid channel consistent;

[0010] The filtering component includes a flow guiding frame connected inside the filtering tank and multiple groups of filtering discs connected to the flow guiding frame;

[0011] The multiple groups of filtering discs are arranged linearly and equidistantly from left to right along the outer side of the flow guiding frame, and a blocking ring is arranged between two adjacent filtering discs;

[0012] Multiple groups of fluid grooves are formed on the flow guiding frame, and the multiple groups of fluid grooves are arranged spirally and equidistantly along the outer side of the flow guiding frame.

[0013] As a preferred solution of a plastic melt anti-impurity centralized filtering device described in the present invention, wherein: a confluence pipe is connected to the left end of the flow guiding frame, and the confluence pipe is arranged corresponding to the left side of the through hole.

[0014] As a preferred solution of a plastic melt anti-impurity centralized filtering device described in the present invention, wherein: a sealing seat is connected to the right end of the flow guiding frame corresponding to the inside of the filtering tank.

[0015] As a preferred solution of a plastic melt anti-impurity centralized filtering device described in the present invention, wherein: a flow guiding pipe is connected inside the left through hole, the flow guiding pipe is communicated with the confluence pipe, and a feeding pipe is arranged inside the right through hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Multiple groups of filtering discs cooperate to assist in filtering the input melt as a filter core. The filtered melt is transported to the fluid groove through the outlet of the filtering disc. A blocking ring is connected between two adjacent filtering discs, and the blocking ring separates and seals two adjacent filtering discs, guiding the melt to the filtering disc, which can effectively prevent the melt from directly entering the fluid groove without passing through the filtering disc, ensuring the filtering performance;

[0018] 2. The fluid grooves arranged in a spiral shape can spirally guide the input fluid, convey the fluid in a spiral manner, reduce the area of fluid flow, offset the influence of back pressure, and moreover, multiple groups of fluid grooves arranged in a spiral shape can make impurities not easily concentrate in a certain area, thereby ensuring that the material can be stirred repeatedly for multiple times. The left end of the fluid groove is communicated with a confluence pipe, and the confluence pipe is arranged corresponding to the left through hole. The confluence pipe serves as a fluid guiding channel to transport the filtered fluid to the flow guiding pipe. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 For the present utility model Figure 1 Schematic diagram of the internal partial structure;

[0022] Figure 3 For the present utility model Figure 2 Schematic diagram of the partial structure;

[0023] Figure 4 For the present utility model Figure 1 Schematic diagram of the sectional structure.

[0024] In the figure: 100 filtration tank, 110 end cap, 111 through hole, 111a diversion pipe, 111b feed pipe, 120 plugging seat, 200 filtration component, 210 diversion frame, 211 fluid tank, 212 confluence pipe, 220 filtration disc, 230 barrier ring. Specific embodiments

[0025] To make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0028] To make the purpose, technical solution and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] The present utility model provides a plastic melt anti-impurity centralized filtration device. Please refer to Figures 1-4 , including a filtration tank 100 and a filtration component 200;

[0030] Please continue to refer to Figures 1-2 , the filtration tank 100 as the filtration chamber, both ends of the filtration tank 100 are hermetically connected with end caps 110, and through holes 111 are opened on the end caps 110;

[0031] A flow guiding pipe 111a is connected inside the through hole 111 on the left side. The flow guiding pipe 111a serves as a discharge pipe for the filtered liquid. The flow guiding pipe 111a is communicated with the confluence pipe 212. A feeding pipe 111b is arranged inside the through hole 111 on the right side. The feeding pipe 111b serves as a melt feeding pipe. A blocking seat 120 is connected corresponding to the right end of the flow guiding frame 210 inside the filtering tank 100. The blocking seat 120 serves as a connection base to connect the flow guiding frame 210, and the blocking seat 120 serves as a blocking structure at the right end of the flow guiding frame 210 to prevent the melt from directly entering the flow guiding frame 210 by guiding the melt.

[0032] Please continue to refer to Figure 1 、 Figure 2 and Figure 4 , the filtering component 200 is placed inside the filtering tank 100 to counteract the influence of back pressure and make the flow efficiency of the melt in the fluid channel consistent.

[0033] The filtering component 200 includes a flow guiding frame 210 threadedly connected inside the filtering tank 100, and multiple groups of filtering discs 220 connected to the flow guiding frame 210. The multiple groups of filtering discs 220 cooperate to assist in filtering the input melt as a filter core. The filtered melt is transported to the fluid tank 211 through the outlet of the filtering disc 220.

[0034] The multiple groups of filtering discs 220 are linearly arranged at equal intervals from left to right along the outer side of the flow guiding frame 210, and a blocking ring 230 is connected between two adjacent filtering discs 220. The blocking ring 230 separates and blocks two adjacent filtering discs 220, guides the melt to the filtering disc 220, and prevents the melt from directly entering the fluid tank 211 without passing through the filtering disc 220.

[0035] Multiple groups of fluid tanks 211 are arranged on the flow guiding frame 210 at equal intervals in a spiral shape along the outer side of the flow guiding frame 210. The fluid tanks 211 arranged in a spiral shape can guide the input fluid, convey the fluid in a spiral manner, reduce the flow area of the fluid, and counteract the influence of back pressure. Moreover, the multiple groups of fluid tanks 211 arranged in a spiral shape can prevent impurities from easily concentrating in a certain area, thereby ensuring that the material can be stirred repeatedly for multiple times. The left end of the fluid tank 211 is communicated with the confluence pipe 212. The confluence pipe 212 is arranged corresponding to the through hole 111 on the left side. The confluence pipe 212 serves as a fluid guiding channel to transport the filtered fluid to the flow guiding pipe 111a.

[0036] Working principle: When the utility model is in use, after the melt enters the filtration tank 100 through the inlet, it is assisted in filtration by the filter discs 220. The filtered melt is transported to the fluid tank 211 through the outlet of the filter discs 220. The fluid tank 211 arranged in a spiral shape can conduct spiral guidance on the input fluid, convey the fluid in a spiral manner, reduce the area of fluid flow, and offset the influence of back pressure. Moreover, multiple groups of fluid tanks 211 arranged in a spiral shape can prevent impurities from easily concentrating in a certain area, thereby ensuring that the material can be stirred repeatedly for multiple times. The left end of the fluid tank 211 is connected to a confluence pipe 212, and the confluence pipe 212 is arranged corresponding to the through hole 111 on the left side. The confluence pipe 212 serves as a fluid guiding channel to transport the filtered fluid to the diversion pipe 111a.

[0037] Although the present utility model has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present utility model can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A plastic melt anti-impurity centralized filtering device, characterized in that: include: A filter tank (100) serving as a filter chamber, wherein both ends of the filter tank (100) are sealedly connected to end covers (110), and a through hole (111) is provided on the end cover (110); The filter component (200) is placed in the filter tank (100) and is used to offset the influence of back pressure and make the flow efficiency of the solution in the fluid channel consistent; The filter component (200) comprises a flow guide frame (210) connected to the filter tank (100), and a plurality of filter discs (220) connected to the flow guide frame (210); A plurality of groups of filter discs (220) are arranged linearly and equidistantly from left to right along the outer side of the guide frame (210), and a barrier ring (230) is arranged between two adjacent filter discs (220); The flow guide frame (210) is provided with a plurality of groups of fluid grooves (211), and the plurality of groups of fluid grooves (211) are arranged in a spiral shape and at equal intervals along the outer side of the flow guide frame (210).

2. A plastic melt anti-impurity centralized filtering device according to claim 1, characterized in that: The left end of the flow guide frame (210) is connected to a collector pipe (212), and the collector pipe (212) is arranged corresponding to the through hole (111) on the left side.

3. A plastic melt anti-impurity centralized filtering device according to claim 2, characterized in that: A blocking seat (120) is connected to the right end of the flow guide frame (210) in the filter tank (100).

4. A plastic melt anti-impurity centralized filtering device according to claim 3, characterized in that: A flow guide pipe (111a) is connected to the through hole (111) on the left side, and the flow guide pipe (111a) is communicated with the collecting pipe (212). A material conveying pipe (111b) is arranged in the through hole (111) on the right side.

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