Filter housing bottom plastic sealing device

Abstract

The application discloses a filter shell bottom plastic sealing device, which comprises an output conveying belt, a plastic sealing film conveying device, a plastic sealing film cutting device and a plastic sealing film heat sealing device. The plastic sealing film conveying device conveys the plastic sealing film to above the output conveying belt. The plastic sealing film cutting device cuts a film piece matched with the filter. An external workpiece placing mechanism places the filter on the plastic sealing film on the output conveying belt. The filter self-weight is utilized to realize the predetermined positioning of the plastic sealing film. Then, the plastic sealing film heat sealing device is utilized to heat and seal the plastic sealing film at the bottom of the filter. The device has the advantages of compact structure, smooth process connection, continuous and automatic operation of plastic sealing film conveying, cutting and filter bottom plastic sealing, accurate film material positioning, uniform and sufficient heat sealing, stable plastic sealing quality, high production efficiency and the like. The device effectively solves the problems of low positioning accuracy, uneven heat sealing, poor consistency, low efficiency and the like of traditional manual work and existing equipment, and is suitable for large-scale and continuous production of filters.

Description

Technical Field

[0001] This utility model relates to the technical field of filter processing equipment, and specifically to a plastic sealing device for the bottom of a filter housing. Background Technology

[0002] During production, storage, and transportation, filters typically require plastic sealing at the bottom of the casing to prevent impacts, corrosion, and contamination. Traditionally, manual membrane placement, manual cutting, and simple heat sealing are used, which suffers from low efficiency, poor sealing consistency, and high labor intensity.

[0003] While existing automated sealing equipment can automate some processes, it generally suffers from defects such as unstable film material feeding and positioning, insufficient cutting accuracy, unreliable workpiece transfer mechanism movement, poor adaptability of heat sealing area, and uneven hot air distribution, making it difficult to meet the needs of continuous and high-precision production.

[0004] The closest prior art to this application is CN202020831679.X, which discloses an automatic filter sealing machine, including a conveying device, a film unwinding and rewinding mechanism, a film cutting mechanism, and a hot air box.

[0005] However, the existing technology still has shortcomings: the sealing film lacks a pre-positioning and pressing structure, making it prone to displacement and wrinkling; the overall hot air box heating makes it impossible to accurately heat seal the bottom.

[0006] Therefore, it is necessary to provide a device that is compact in structure, accurate in positioning, stable in transfer, uniform in heat sealing, and capable of automatically sealing the bottom of the filter housing. Utility Model Content

[0007] This utility model aims to solve one of the technical problems existing in the prior art.

[0008] This application provides a plastic sealing device for the bottom of a filter housing, including a plastic sealing film conveying device, a plastic sealing film cutting device, a plastic sealing film heat sealing device, and an output conveyor belt. The plastic sealing film conveying device is used to convey the plastic sealing film to the top of the output conveyor belt, the plastic sealing film cutting device is used to cut out a plastic sealing film that is adapted to the filter, and the plastic sealing film heat sealing device is used to heat the plastic sealing film pressed by the filter to achieve plastic sealing of the bottom of the filter.

[0009] Furthermore, the plastic wrapping film cutting device includes a mounting frame, a lifting plate, and a cutter. The mounting frame is located on top of the output conveyor belt, the lifting plate is movably installed inside the mounting frame and is driven to rise and fall by a cylinder, and the cutter is fixed at the bottom of the lifting plate.

[0010] Furthermore, the conveyor mounting frame includes a top plate and a pair of horizontal plates, the pair of horizontal plates being mounted on top of the output conveyor belt, a plastic sealing film passing between the pair of horizontal plates, and the top plate being mounted on top of the pair of horizontal plates by several pillars for mounting cylinders.

[0011] Furthermore, the plastic wrapping film cutting device also includes a stabilizing frame, which provides a limit to the lifting and lowering of the lifting plate.

[0012] Furthermore, the stabilizing frame includes a top frame and several guide rods, each of which is slidably inserted into the lifting plate, with its top and bottom ends fixed to the top frame and the horizontal plate, respectively.

[0013] Furthermore, the top frame is hollow, and the piston rod of the cylinder passes through the hollow part of the top frame and is fixed to the lifting plate.

[0014] Furthermore, the plastic sealing film conveying device includes an unwinding roller, a take-up roller, and a pair of conveyor rollers. The unwinding roller is mounted on one side of the output conveyor belt via a bracket, and the take-up roller is mounted on the other side of the output conveyor belt via a take-up frame. The pair of conveyor rollers are rotatably mounted on the output conveyor belt near the unwinding roller, and one of the conveyor rollers is driven to rotate by a motor.

[0015] Furthermore, the heat sealing device for plastic film includes a pair of air outlet shells, which are symmetrically arranged on the top surface of the output conveyor belt. Each pair of air outlet shells has several air outlets connected to external hot air equipment at opposite ends.

[0016] Furthermore, the adjacent end faces of the pair of air-discharge shells are both semi-circular.

[0017] Furthermore, the base, output conveyor belt, and plastic film conveyor are all mounted on the base.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The plastic seal film is first precisely conveyed and positioned by the conveying device, and then cut to the size of the filter by the cutting device. After the filter is transferred and placed, it is directly pressed onto the plastic seal film by its own weight to achieve pre-compression and positioning. The plastic seal film is not easy to shift or wrinkle, and the sealing position accuracy and forming consistency are high.

[0020] 2. The plastic sealing film cutting device guides and limits the lifting plate through the stabilizing frame and guide rod. The lifting movement is straight and stable, and the cutter cuts neatly without deviation. It can stably cut membranes that match the shape of the filter, providing a good foundation for subsequent heat sealing.

[0021] 3. The heat sealing device of the plastic seal adopts a symmetrical air outlet shell structure, which is matched with the semi-circular end face and the bottom shape of the filter. The hot air is evenly distributed, which can achieve precise, uniform and tight sealing of the bottom of the filter. The plastic seal has good sealing performance and a flat appearance, effectively avoiding leakage, incomplete sealing or local overheating deformation. Attached Figure Description

[0022] Figure 1 This is a top view of the bottom sealing device of the filter housing in an embodiment of this application;

[0023] Figure 2 This is a front view of the plastic sealing device at the bottom of the filter housing in an embodiment of this application.

[0024] Figure Labels

[0025] 1-Plastic film conveying device, 11-Unwinding roller, 12-Rewinding roller, 13-Conveying roller, 2-Plastic film cutting device, 21-Mounting frame, 211-Top plate, 212-Horizontal plate, 213-Support column, 22-Lifting plate, 23-Cutter, 24-Stabilizing frame, 241-Top frame, 242-Guide rod, 25-Cylinder, 3-Plastic film heat sealing device, 31-Air outlet shell, 4-Output conveyor belt, 5-Base. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] The bottom sealing device for the filter housing provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0029] Example 1

[0030] This application provides a bottom sealing device for a filter housing, including a sealing film conveying device 1, a sealing film cutting device 2, a sealing film heat sealing device 3, and an output conveyor belt 4. The sealing film conveying device 1 is used to convey the sealing film to the top of the output conveyor belt 4, the sealing film cutting device 2 is used to cut the sealing film to fit the filter, and the sealing film heat sealing device 3 is used to heat the sealing film pressed by the filter to achieve bottom sealing of the filter.

[0031] In this embodiment of the application, a base 5 is also included, and the output conveyor belt 4 and the plastic sealing film conveying device 1 are all disposed on the base 5.

[0032] like Figures 1 to 2 As shown, due to the above structure, the plastic sealing film is stably conveyed to the top of the output conveyor belt 4 by the plastic sealing film conveying device 1. The plastic sealing film is then cut by the plastic sealing film cutting device 2 to form a membrane that is compatible with the filter. The filter is then placed on the plastic sealing film by the external transfer mechanism. The filter's own weight is used to achieve the pre-positioning of the plastic sealing film. Finally, the plastic sealing film heat sealing device 3 heats and seals the plastic sealing film in the bottom area of ​​the filter, completing the automated plastic sealing of the bottom of the filter housing. The overall structure is simple and reasonable, and the process is continuous and smooth. It can stably realize the plastic sealing operation of the bottom of the filter, which is conducive to improving the plastic sealing efficiency and molding quality.

[0033] Example 2

[0034] In this embodiment, in addition to the structural features of the aforementioned embodiments, the plastic film cutting device 2 includes a mounting frame 21, a lifting plate 22, and a cutter 23. The mounting frame 21 is disposed on the top of the output conveyor belt 4, the lifting plate 22 is movably mounted in the mounting frame 21 and driven to rise and fall by a cylinder 25, and the cutter 23 is fixedly disposed at the bottom of the lifting plate 22.

[0035] In this embodiment of the application, the conveyor mounting frame 21 includes a top plate 211 and a pair of horizontal plates 212. The pair of horizontal plates 212 are mounted on the top of the output conveyor belt 4. A plastic sealing film passes between the pair of horizontal plates 212. The top plate 211 is mounted on the top of the pair of horizontal plates 212 by a number of pillars 213 for mounting cylinders 25.

[0036] In this embodiment of the application, the plastic film cutting device 2 further includes a stabilizing frame 24, which is used to limit the lifting of the lifting plate 22.

[0037] In this embodiment of the application, the stabilizer 24 includes a top frame 241 and a plurality of guide rods 242, each guide rod 242 being slidably inserted in the lifting plate 22, with its top and bottom ends fixedly connected to the top frame 241 and the horizontal plate 212, respectively.

[0038] In this embodiment of the application, the top frame 241 is hollow, and the piston rod of the cylinder 25 passes through the hollow part of the top frame 241 and is fixed to the lifting plate 22.

[0039] like Figures 1 to 2As shown, due to the above structure, the mounting frame 21 provides stable support for the cutting of the plastic sealant film. The lifting plate 22, driven by the cylinder 25, drives the cutter 23 to move up and down, realizing the fixed-length cutting of the plastic sealant film. The stabilizing frame 24, composed of the top frame 241 and multiple guide rods 242, guides and limits the lifting plate 22, making the lifting trajectory of the lifting plate 22 straight and stable, effectively preventing the cutter 23 from deviating and shaking, ensuring the cutting accuracy and the neatness of the cutting edge. The piston rod of the cylinder 25 passes through the hollow part of the top frame 241 and connects to the lifting plate 22. The structure is compact and the force is uniform, which can stably cut plastic sealant film sheets that fit the shape of the filter, providing a reliable guarantee for the subsequent heat sealing process.

[0040] Example 3

[0041] In this embodiment, in addition to the structural features of the aforementioned embodiments, the plastic sealing film conveying device 1 includes an unwinding roller 11, a take-up roller 12, and a pair of conveying rollers 13. The unwinding roller 11 is mounted on one side of the output conveyor belt 4 via a bracket, the take-up roller 12 is mounted on the other side of the output conveyor belt 4 via a take-up frame, and the pair of conveying rollers 13 are rotatably mounted on the side of the output conveyor belt 4 near the unwinding roller 11. One of the conveying rollers 13 is driven to rotate by a motor.

[0042] like Figures 1 to 2 As shown, due to the above structure, the unwinding roller 11 can realize continuous unwinding of the plastic sealant roll. A pair of conveying rollers 13, driven by a motor, traction and convey the plastic sealant film, smoothly delivering the film material to the cutting station above the output conveyor belt 4. The winding roller 12, driven by a motor, synchronously winds up and recycles the remaining material after cutting, realizing orderly conveying of the plastic sealant film and recycling of the remaining material. Each roller has a clear division of labor and works in a coherent manner, which can ensure stable conveying tension and accurate conveying position of the plastic sealant film, providing a continuous and stable supply of film material for cutting and heat sealing, and improving the continuous operation capability of the device.

[0043] Example 4

[0044] In this embodiment, in addition to the structural features of the aforementioned embodiments, the heat sealing device 3 for plastic film includes a pair of air outlet shells 31, which are symmetrically arranged on the top surface of the output conveyor belt 4. Each pair of air outlet shells 31 has several air outlets connected to external hot air equipment at opposite ends.

[0045] In this embodiment of the application, the adjacent end faces of the pair of air outlet shells 31 are both semi-circular.

[0046] like Figures 1 to 2As shown, due to the above structure, a pair of air outlet shells 31 are symmetrically arranged on the top surface of the output conveyor belt 4 and form opposite hot air action areas. The air outlet blows the hot air provided by the external hot air equipment in a directional manner to the bottom and surrounding plastic sealing film of the filter, so that the plastic sealing film is quickly heated and softened and tightly adhered to the bottom of the filter housing. The adjacent end faces of the air outlet shells 31 are set as semi-circles, which can be adapted to the shape of the bottom of the filter, so that the hot air distribution is more uniform, the heat sealing is more thorough and comprehensive, effectively improving the sealing performance and appearance flatness of the plastic sealing, and reducing the situation of leakage, incomplete sealing or local overheating deformation.

[0047] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0048] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A plastic sealing device for the bottom of a filter housing, characterized in that, The device includes a plastic sealing film conveying device, a plastic sealing film cutting device, a plastic sealing film heat sealing device, and an output conveyor belt. The plastic sealing film conveying device is used to convey the plastic sealing film to the top of the output conveyor belt. The plastic sealing film cutting device is used to cut the plastic sealing film to fit the filter. The plastic sealing film heat sealing device is used to heat the plastic sealing film pressed by the filter to achieve plastic sealing around the bottom of the filter.

2. The filter housing bottom sealing device according to claim 1, characterized in that, The plastic film cutting device includes a mounting frame, a lifting plate, and a cutter. The mounting frame is located on top of the output conveyor belt. The lifting plate is movably installed inside the mounting frame and is driven to rise and fall by a cylinder. The cutter is fixed to the bottom of the lifting plate.

3. The filter housing bottom sealing device according to claim 2, characterized in that, The conveyor mounting frame includes a top plate and a pair of horizontal plates, the pair of horizontal plates being mounted on top of the output conveyor belt, with a plastic sealing film passing between the pair of horizontal plates, and the top plate being mounted on top of the pair of horizontal plates by several pillars for mounting cylinders.

4. The filter housing bottom sealing device according to claim 3, characterized in that, The plastic film cutting device also includes a stabilizing frame, which provides a limit for the lifting of the lifting plate.

5. The filter housing bottom sealing device according to claim 4, characterized in that, The stabilizer includes a top frame and several guide rods, each of which is slidably inserted into the lifting plate, with its top and bottom ends fixed to the top frame and the horizontal plate, respectively.

6. The filter housing bottom sealing device according to claim 5, characterized in that, The top frame is hollow, and the piston rod of the cylinder passes through the hollow part of the top frame and is fixed to the lifting plate.

7. The filter housing bottom sealing device according to claim 1, characterized in that, The plastic sealing film conveying device includes an unwinding roller, a take-up roller, and a pair of conveying rollers. The unwinding roller is mounted on one side of the output conveyor belt via a bracket, and the take-up roller is mounted on the other side of the output conveyor belt via a take-up frame. The pair of conveying rollers are rotatably mounted on the output conveyor belt near the unwinding roller, and one of the conveying rollers is driven to rotate by a motor.

8. The filter housing bottom sealing device according to claim 1, characterized in that, The heat sealing device for plastic film includes a pair of air outlet shells, which are symmetrically arranged on the top surface of the output conveyor belt. Each pair of air outlet shells has several air outlets connected to external hot air equipment at opposite ends.

9. A filter housing bottom sealing device according to claim 8, characterized in that, The adjacent end faces of the pair of air outlet shells are both semi-circular.

10. The filter housing bottom sealing device according to claim 1, characterized in that, It also includes a base, on which the output conveyor belt and the plastic film conveying device are both mounted.

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