Filter screen assembly and adhesive filtering device

Abstract

The utility model discloses a filter screen assembly and an adhesive filtering device, and relates to the technical field of medical packaging bag production, the filter screen assembly is installed at a liquid extraction opening of a suction pump, the filter screen assembly comprises a connecting structure, the connecting structure is provided with a penetrating pipeline, one end of the connecting structure is connected with the suction pump, and the other end of the connecting structure is connected with the suction pump. The pipeline is communicated with a liquid pumping opening of the suction pump; the filter screen bracket is arranged at one end, deviating from the suction pump, of the connecting structure; the suction pump comprises a pipeline, a filter screen support and a filter screen, the filter screen is wrapped on the periphery of the filter screen support, the filter screen and the filter screen support form a filter cavity, and the filter cavity is communicated with the pipeline, so that an adhesive to be filtered enters the suction pump through the filter cavity and the pipeline. According to the technical scheme provided by the utility model, the filter screen bracket is used for bearing the filter screen to filter the adhesive, so that the problem that the existing filter device is poor in filter efficiency in the process of filtering the adhesive is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical packaging bag production, in particular to a filter screen component and an adhesive filtering device. Background Art

[0002] Medical packaging bags are specialized packaging materials used in the healthcare industry to package medical devices, equipment, pharmaceuticals, and other medical supplies. Adhesive application is a critical step in the production process to ensure the bag's seal and sterility. Before applying the adhesive, it is typically filtered to reduce impurities and improve its purity, thereby ensuring the quality and sealability of the final product. Current filtration devices filter the adhesive through a mesh, resulting in a highly purified adhesive.

[0003] However, the existing filtering device has the problem of poor filtering efficiency during the process of filtering the adhesive. Utility Model Content

[0004] The main purpose of the utility model is to provide a filter assembly and an adhesive filtering device, aiming to solve the problem of poor filtering efficiency of existing filtering devices in the process of filtering adhesives.

[0005] To achieve the above-mentioned purpose, the present invention proposes a filter assembly, which is installed at the liquid extraction port of a suction pump and includes:

[0006] A connecting structure having a penetrating pipe, one end of which is connected to the suction pump, and the pipe is in communication with a liquid extraction port of the suction pump;

[0007] a filter bracket, the filter bracket being arranged at an end of the connecting structure away from the suction pump; and

[0008] The filter screen is wrapped around the outer periphery of the filter screen support. The filter screen and the filter screen support form a filter cavity. The filter cavity is connected to the pipeline so that the adhesive to be filtered enters the suction pump through the filter cavity and the pipeline.

[0009] In one embodiment, the filter support comprises:

[0010] Fixed ring;

[0011] a first member arranged in a curved shape, wherein a plurality of the first members are arranged in an array along the outer circumference of the fixing ring, and an end of each first member facing away from the fixing ring is connected to the connecting structure, so that the plurality of first members form a spherical structure; and

[0012] The second components are provided in plurality at intervals along the height direction of the spherical structure, and each of the second components is fixedly connected to each of the first components.

[0013] In one embodiment, the connection structure includes a suction pipe, one end of the suction pipe is connected to the suction pump, and the other end of the suction pipe away from the suction pump is connected to the filter screen support.

[0014] In one embodiment, the connection structure further includes a mounting portion, which has a cavity and is communicated with the pipe, and is provided at the end of the suction pipe away from the suction pump. The filter screen support is fixedly connected to the outer periphery of the mounting portion so that one end of the mounting portion extends into the interior of the filtering cavity.

[0015] In one embodiment, the length that the mounting portion extends into the filtering cavity is greater than one half of the height of the filter screen support; or,

[0016] The length that the mounting portion extends into the filtering cavity is equal to one half of the height of the filter screen support.

[0017] In one embodiment, the filter screen support is made of a rigid material; and / or,

[0018] The filter screen is made of a flexible material.

[0019] In one embodiment, the filter screen assembly further includes a fastener, and the end of the filter screen is fixed to the connection structure through the fastener.

[0020] The present utility model further provides an adhesive filtering device, which includes a suction pump and a filter screen assembly. The filter screen assembly includes:

[0021] A connection structure, the connection structure has a through pipe, one end of the connection structure is connected to the suction pump, and the pipe is communicated with the liquid suction port of the suction pump;

[0022] A filter screen support, the filter screen support is provided at the end of the connection structure away from the suction pump; and

[0023] A filter screen, the filter screen is wrapped around the outer periphery of the filter screen support, and the filter screen and the filter screen support form a filtering cavity, and the filtering cavity is communicated with the pipe so that the adhesive to be filtered enters the suction pump through the filtering cavity and the pipe.

[0024] In one embodiment, the adhesive filtering device further includes a collection assembly, and the collection assembly is connected to the output port of the suction pump for collecting the filtered adhesive.

[0025] In one embodiment, the collection assembly includes:

[0026] a connecting pipe, one end of which is connected to the output port of the suction pump; and

[0027] The material storage barrel has a cavity inside and is provided with an input port, and the input port is connected to an end of the connecting pipe away from the suction pump.

[0028] In the technical solution provided by the present invention, the filter bracket can be conveniently connected to the suction pump through the provided connection structure. The suction pump can extract the filtered adhesive through the pipe of the connection structure. The filter bracket is provided on the connection structure and can provide support for the filter. The filter can filter the adhesive to be filtered. In this embodiment, the filter and the filter bracket together constitute a filter cavity, so that the adhesive to be filtered can enter the filter cavity from multiple directions to provide a more uniform fluid distribution, reduce pressure loss and local blockage, and thus improve the filtration efficiency. Moreover, the filter is wrapped around the outer periphery of the filter bracket, so that the surface area of the filter immersed in the adhesive to be filtered is adjustable. In this way, the filter can be completely immersed in the adhesive to be filtered, or partially immersed in the adhesive to be filtered according to the suction speed of the suction pump, which can further reduce pressure loss and improve filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the adhesive filtering device provided by the utility model;

[0031] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure of part A;

[0032] Figure 3 This is a schematic diagram of the exploded structure of an embodiment of the filter assembly provided by the present invention;

[0033] Figure 4 This is a structural schematic diagram of an embodiment of the filter bracket provided by the utility model.

[0034] Description of Figure Numbers:

[0035] 10. Suction pump; 20. Connection structure; 21. Suction pipe; 22. Installation part; 30. Filter screen support; 31. Fixed ring; 32. First component; 33. Second component; 40. Filter screen; 50. Fastener; 60. Connecting pipe; 70. Stock bucket.

[0036] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.

[0038] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] For medical packaging bags, during the production process, considering the sealing and sterility of the packaging bags, it is necessary to coat adhesives. Before coating the adhesives, it is necessary to filter the adhesives. Due to the high viscosity of the adhesives, the existing filtering devices will cause pressure loss and local blockage when filtering the adhesives to be filtered, thus affecting the filtering efficiency.

[0041] In view of this, an embodiment of the present invention provides a filter assembly that can filter the adhesive. The filter is wrapped around the outer periphery of the filter bracket so that the filter and the filter bracket form a filter cavity, and the adhesive to be filtered fills the outside of the filter. The adhesive to be filtered can enter the filter cavity from multiple directions to provide a more uniform fluid distribution, reduce pressure loss and local blockage, and thus improve filtration efficiency.

[0042] In order to better understand the above technical solution, the above technical solution is described in detail below with reference to the accompanying drawings.

[0043] See also Figure 1 、 Figure 2 as well as Figure 3 The present invention provides a filter assembly for filtering adhesive to be filtered. The filter assembly is installed at the liquid extraction port of the suction pump 10. The filter assembly includes:

[0044] The connecting structure 20 has a pipe running through it. One end of the connecting structure 20 is connected to the suction pump 10, and the pipe is in communication with the liquid extraction port of the suction pump 10.

[0045] a filter support 30 , which is disposed at an end of the connecting structure 20 away from the suction pump 10 ; and

[0046] The filter screen 40 is wrapped around the outer periphery of the filter screen support 30 . The filter screen 40 and the filter screen support 30 form a filter cavity. The filter cavity is connected to the pipeline so that the adhesive to be filtered enters the suction pump 10 through the filter cavity and the pipeline.

[0047] In the technical solution adopted in this embodiment, the provided connection structure 20 allows the filter holder 30 to be conveniently connected to the suction pump 10. The suction pump 10 can extract the filtered adhesive through the pipe of the connection structure 20. The filter holder 30 is arranged on the connection structure 20 to provide support for the filter 40. The filter 40 can filter the adhesive to be filtered. In this embodiment, the filter 40 and the filter holder 30 together form a filter cavity, allowing the adhesive to be filtered to enter the filter cavity from multiple directions, providing a more uniform fluid distribution, reducing pressure loss and local blockage, and thus improving filtration efficiency. Moreover, the filter 40 is wrapped around the outer periphery of the filter holder 30, making the surface area of the filter 40 immersed in the adhesive to be filtered adjustable. In this way, the filter 40 can be completely or partially immersed in the adhesive to be filtered according to the suction speed of the suction pump 10, further reducing pressure loss and improving filtration efficiency. It is understandable that the faster the suction speed of the suction pump 10 is, the larger the surface area of the filter screen 40 immersed in the adhesive to be filtered, and the slower the suction speed of the suction pump 10 is, the smaller the surface area of the filter screen 40 immersed in the adhesive to be filtered.

[0048] Specifically, the filter assembly includes a connecting structure 20 , a filter bracket 30 and a filter 40 .

[0049] The connection structure 20 is used to connect the filter holder 30. It is understood that the connection structure 20 can connect the filter holder 30 to the suction pump 10, thereby facilitating the extraction of the adhesive after filtration. The connection structure 20 can be a hose, with one end fixedly connected to the suction pump 10 and the other end extending into the filtered adhesive to facilitate extraction.

[0050] The filter support 30 can be made of a metal material such as stainless steel or iron, which has a certain load-bearing capacity and provides support. It is understood that the filter support 30 can be spherical or cylindrical. This allows the adhesive to pass through from multiple directions, reducing pressure loss. It also increases the surface area available for mounting the filter 40, reducing the possibility of localized clogging and thus improving filtration efficiency.

[0051] The filter screen 40 is wrapped around the outer periphery of the filter support 30, and can form a filter cavity with the filter support 30, which can provide a larger filtering area, thereby improving the filtering efficiency and reducing the filtering time. At the same time, the setting of the filter cavity helps the adhesive to be filtered to pass through the filter screen 40 evenly, improves the filtering effect, and can better remove impurities. It can also reduce the pressure loss when the adhesive to be filtered passes through, and improve the overall performance of the filter assembly. Moreover, the filter cavity designed by wrapping the filter screen 40 with the filter screen support 30 makes the filter screen 40 easy to replace and clean. In this way, filters 40 of different specifications can be selected according to adhesives with different characteristics or different requirements of the same adhesive.

[0052] Further, refer to Figure 3 、 Figure 4 In one embodiment of the present invention, the filter support 30 includes:

[0053] Fixed ring 31;

[0054] A first member 32 is arranged in a curved shape. A plurality of first members 32 are arranged in an array along the outer periphery of the fixing ring 31 , and one end of each first member 32 facing away from the fixing ring 31 is connected to the connecting structure 20 , so that the plurality of first members 32 form a spherical structure; and

[0055] A plurality of second components 33 are provided at intervals along the height direction of the spherical structure, and each second component 33 is fixedly connected to each first component 32 .

[0056] In the technical solution adopted in this embodiment, the filter screen support 30 may further include a fixing ring 31, a first member 32, and a second member 33. In this embodiment, the fixing ring 31 is used to provide the overall structural framework of the filter screen support 30 to ensure structural strength. Generally, a sheet metal part is used, which is not limited herein. A plurality of first members 32 are arranged in an array along the outer periphery of the fixing ring 31, mainly for supporting the filter screen 40. Moreover, the first member 32 is bent, and one end of each first member 32 facing away from the fixing ring 31 is connected to the connection structure 20, so that a spherical structure can be formed. The spherical structure can provide a more uniform fluid distribution, which helps to improve the filtration efficiency and reduce local blockage. At the same time, the spherical structure reduces the dead angle of the adhesive flow, which helps to reduce the pressure loss. The second member 33 is fixedly connected to the first member 32, and is used to improve the stability of the spherical structure, so that the filter screen 40 is not easily deformed or damaged during operation. Moreover, a plurality of second members 33 are arranged at intervals along the height direction of the spherical structure, which can improve the reliability. It can be understood that the perimeter of the second member 33 is related to the position set on the spherical structure. The closer to the center of the spherical structure, the longer the perimeter of the second member 33, and the closer to the two ends of the spherical structure, the shorter the perimeter of the second member 33. And, each intersection point of each second member 33 and each first member 32 is fixedly connected, which can make the spherical structure more firm.

[0057] Further, referring to Figure 3 , in an embodiment of the present invention, the connection structure 20 includes a suction pipe 21. One end of the suction pipe 21 is connected to the suction pump 10, and the end of the suction pipe 21 facing away from the suction pump 10 is connected to the filter screen support 30.

[0058] In the technical solution adopted in this embodiment, the connection structure 20 may further include a suction pipe 21. In this embodiment, the suction pipe 21 is made of a flexible material such as rubber, which is convenient for filtration operation. The suction pipe 21 can be set to one or multiple. The suction pipe 21 has opposite first and second ends. When the suction pipe 21 is set to one, the first end thereof can be connected to the suction pump 10, and the second end can be connected to the filter screen support 30, so that the filtration operation can be simply completed; when the suction pipe 21 is set to multiple, the multiple suction pipes 21 are connected in sequence. The first end of the suction pipe 21 at the head can be connected to the suction pump 10, and the second end of the suction pipe 21 at the end can be connected to the filter screen support 30, so as to meet various usage requirements. The connection method can be an interference fit between the second end of one suction pipe 21 and the first end of another suction pipe 21, or a connecting member can be provided to connect the two suction pipes 21. The number of suction pipes 21 can be adjusted correspondingly according to the actual usage requirements, which is not limited herein.

[0059] Further, referring to Figure 3 、 Figure 4In one embodiment of the present invention, the connecting structure 20 also includes a mounting portion 22, which has a cavity and is connected to the pipeline. It is arranged at the end of the suction pipe 21 away from the suction pump 10, and the filter bracket 30 is fixedly connected to the outer periphery of the mounting portion 22 so that one end of the mounting portion 22 extends into the interior of the filter cavity.

[0060] In the technical solution adopted in this embodiment, the provided mounting portion 22 facilitates the connection between the suction tube 21 and the filter holder 30. The mounting portion 22 can be a metal tube, and the filter holder 30 can be fixed to the outer periphery of the metal tube by welding or bolts. This wraps around one end of the metal tube, facilitating the extraction of filtered adhesive. The other end is detachably connected to the suction tube 21, allowing the overall structure to be replaced according to different adhesive requirements. The detachable connection can be achieved by an interference fit between the metal tube and the tube wall of the suction tube 21, or by fixing the suction tube 21 to the end of the metal tube with a cable tie.

[0061] Further, refer to Figure 3 、 Figure 4 In one embodiment of the present invention, the length of the mounting portion 22 extending into the filter cavity is greater than half the height of the filter support 30; or

[0062] The length of the mounting portion 22 extending into the filter cavity is equal to half the height of the filter support 30 .

[0063] In the technical solution adopted in this embodiment, the length of the mounting portion 22 extending into the filter cavity is set to be greater than or equal to half the height of the filter support 30. This provides a good flow effect and facilitates the suction of the filtered adhesive. It is understood that during the suction process, the filtered adhesive will flow to the suction point. If the mounting portion 22 extends less than half into the filter cavity, the adhesive in the lower hemisphere of the filter cavity may accumulate, slowing the flow of the external adhesive to be filtered, thereby affecting filtration efficiency.

[0064] Further, refer to Figure 1 、 Figure 2 In one embodiment of the present invention, the filter support 30 is made of a rigid material; and / or

[0065] The filter screen 40 is made of a flexible material.

[0066] In the technical solution adopted in this embodiment, the filter holder 30 is made of a rigid material. This configuration provides sufficient structural strength and support, reducing the possibility of deformation or collapse during use. The filter 40 is made of a flexible material. This configuration allows for easy installation on the filter holder 30 and adapts to different filtering requirements and shape changes.

[0067] Further, refer to Figure 1 、 Figure 2 In one embodiment of the present invention, the filter assembly further includes a fastener 50 , and the end of the filter 40 is fixed to the connecting structure 20 via the fastener 50 .

[0068] In the technical solution adopted in this embodiment, the filter 40 is secured by a fastener 50. The fastener 50 can be the aforementioned cable tie or a rope. After the filter 40 wraps around the filter holder 30, the operator can use the cable tie or rope to tie the ends of the filter 40 to the connecting structure 20, resulting in a simple structure and easy operation. It should be noted that the surface area of the filter 40 is larger than that of the filter holder 30. Therefore, after the filter 40 completely wraps around the filter holder 30, there is still excess space for fastener 50 to secure it.

[0069] The present invention also provides an adhesive filtering device, comprising a suction pump 10 and a filter assembly according to each of the aforementioned embodiments. The specific structure of the filter assembly is similar to that of the aforementioned embodiments. Since the present adhesive filtering device utilizes all of the technical solutions of all of the aforementioned embodiments, it possesses at least all of the beneficial effects provided by the technical solutions of the aforementioned embodiments, and therefore, no further details will be given here.

[0070] Further, refer to Figure 1 In one embodiment of the present invention, the adhesive filtering device further includes a collecting component connected to the output port of the suction pump 10 for collecting the filtered adhesive.

[0071] In the technical solution adopted in this embodiment, the adhesive after filtration can be collected by providing a collection component. The collection component can be a collection bucket, which can be placed at the output port of the suction pump 10, and the conveyed adhesive will flow into the collection bucket through the output port of the suction pump 10.

[0072] Further, refer to Figure 1 In one embodiment of the present invention, the collecting component includes:

[0073] a connecting pipe 60 , one end of which is connected to the output port of the suction pump 10 ; and

[0074] The material storage barrel 70 has a cavity inside and is provided with an input port, which is connected to the end of the connecting pipe 60 facing away from the suction pump 10 .

[0075] In the technical solution adopted in this embodiment, the collection component may further include a connecting pipe 60 and a material storage pipe. In this embodiment, the connecting pipe 60 is used to connect the output port of the suction pump 10 and the input port of the material storage bucket 70 to provide a flow path for the adhesive. The material storage bucket 70 is used to collect the filtered adhesive for subsequent use. It can be understood that through the settings of the connecting pipe 60 and the material storage bucket 70, the dust in the air can be reduced from falling into the filtered adhesive, thereby improving the purity of the adhesive before use.

[0076] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A filter screen assembly, characterized in that, The filter screen assembly is installed at the liquid suction port of the suction pump. The filter screen assembly includes: A connection structure having a through pipe. One end of the connection structure is connected to the suction pump, and the pipe is communicated with the liquid suction port of the suction pump. A filter screen support provided at the end of the connection structure away from the suction pump; and A filter screen wrapped around the outer periphery of the filter screen support. The filter screen and the filter screen support form a filtering cavity, and the filtering cavity is communicated with the pipe so that the adhesive to be filtered enters the suction pump through the filtering cavity and the pipe. The filter screen support includes: A fixing ring; A first member arranged in a curved shape. A plurality of the first members are arranged in an array along the outer periphery of the fixing ring, and one end of each first member away from the fixing ring is connected to the connection structure so that the plurality of first members form a spherical structure; and A second member provided at intervals along the height direction of the spherical structure. Each second member is fixedly connected to each first member.

2. The filter screen assembly according to claim 1, wherein The connection structure includes a suction pipe. One end of the suction pipe is connected to the suction pump, and the end of the suction pipe away from the suction pump is connected to the filter screen support.

3. The filter screen assembly according to claim 2, wherein, The connection structure further includes an installation part having a cavity and communicated with the pipe, provided at the end of the suction pipe away from the suction pump. The filter screen support is fixedly connected to the outer periphery of the installation part so that one end of the installation part extends into the filtering cavity.

4. The filter screen assembly according to claim 3, wherein, The length of the installation part extending into the filtering cavity is greater than one-half of the height of the filter screen support; or, The length of the installation part extending into the filtering cavity is equal to one-half of the height of the filter screen support.

5. The filter screen assembly according to claim 1, characterized in that, The filter screen support is made of a rigid material; and / or, The filter screen is made of a flexible material.

6. The filter screen assembly according to claim 1, wherein, The filter screen assembly further includes a fastener, and the end of the filter screen is fixed to the connection structure through the fastener.

7. An adhesive filtering device, characterized in that, The adhesive filtering device includes a suction pump and a filter screen assembly, and the filter screen assembly is the filter screen assembly according to any one of claims 1 to 6.

8. The adhesive filtering device according to claim 7, wherein, The adhesive filtering device further includes a collection assembly connected to the output port of the suction pump for collecting the filtered adhesive.

9. The adhesive filtering device according to claim 8, wherein, The collection assembly includes: A connection pipe, one end of which is connected to the output port of the suction pump; and A storage barrel having a cavity inside and an input port, and the input port is connected to the end of the connection pipe away from the suction pump.

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