A dust removal filter bag processing and forming device
Patent Information
- Application Number
- CN202522226049.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-22
AI Technical Summary
Traditional hot pressing devices are slow to heat up, have low temperature control accuracy, and uneven heat distribution, resulting in uneven melting on the surface of the filter bag, local blistering, or sticking to the rollers. The tensioning structure cannot be adjusted, causing the filter material to wrinkle and deviate, affecting dimensional stability and appearance quality.
The electric heating roller with built-in resistance heating structure and adjustable height tensioning wheel mechanism, combined with a multi-nozzle ambient temperature airflow cooling system, achieves rapid heating, constant temperature control and uniform cooling, prevents high temperature deformation and maintains stable filter media tension.
It improves the uniformity and precision of hot pressing, prevents filter bags from shifting and wrinkling, and ensures the surface quality of filter bags and the life of equipment.
Smart Images

Figure CN224928541U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forming device technology, specifically a dust collector filter bag processing and forming device. Background Technology
[0002] In the processing and molding of dust collector filter bags, a PTFE anti-stick layer is usually applied to the surface of the hot press roller to improve the density and anti-stick properties of the filter bag surface. This layer can maintain excellent thermal stability and extremely low surface energy at high temperatures, effectively preventing fibers from sticking to the roller surface during hot pressing. At the same time, it makes the filter material surface form a smooth and dense structure, improving molding quality and extending the service life of the equipment.
[0003] Patent CN214605952U discloses a cylindrical bag forming device for producing dust collector filter bags. The device includes a frame, with a filter cloth arc-shaped bending forming mold at one end. A filter cloth side-stacking and cylindrical forming mechanism is located downstream of the filter cloth arc-shaped bending forming mold on the frame. This mechanism extends towards the filter cloth arc-shaped bending forming mold, and a filter cloth side-guide mechanism is located at the extended end of the mechanism. This device achieves mechanized cylindrical forming of straight filter cloth, significantly reducing labor intensity and improving work efficiency. Furthermore, during subsequent heat-sealing and laminating, only the overlapping portions on both sides of the filter cloth are laminated, effectively ensuring product quality.
[0004] As shown in the above technology, traditional hot pressing devices mostly use external heating plates or heat transfer oil heating rollers, which are slow to heat up, have low temperature control accuracy, and uneven heat distribution, which can easily cause uneven melting, local blistering, or sticking to the rollers on the surface of the filter bag. The tensioning structure of the device is mostly fixed or spring tensioned, which cannot be adjusted in real time according to the thickness or tension changes of the filter bag. This can lead to problems such as wrinkling and misalignment of the filter material during operation. The filter bag after hot pressing is directly rolled up or transferred at high temperature, which can easily cause thermal stress shrinkage or surface deformation, affecting dimensional stability and appearance quality. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a dust collector filter bag processing and forming device, which solves the problems. Traditional hot pressing devices mostly use external heating plates or heat-conducting oil heating rollers, which are slow to heat up, have low temperature control accuracy, and uneven heat distribution, easily causing uneven melting, local blistering, or sticking to the rollers on the filter bag surface. The tensioning structure of the device is mostly fixed or spring-tensioned, which cannot be adjusted in real time according to changes in filter bag thickness or tension, resulting in problems such as wrinkling and misalignment of the filter material during operation. The filter bags after hot pressing are directly rolled up or transferred at high temperature, which easily causes thermal stress shrinkage or surface deformation, affecting dimensional stability and appearance quality.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust collector filter bag processing and forming device, comprising: A base plate, the top of which is rotatably connected to a material roller via a bracket; A hot-press forming assembly, the bottom of which is fixedly connected to the top of a base plate, is used to hot-press and form dust collector filter bags. The hot-press forming assembly includes a take-up roller rotatably connected to the top of the base plate via a bracket, a support roller rotatably connected to the top of the base plate via a bracket, a fixed frame fixedly connected to the top of the base plate, and a hot-press roller rotatably connected to the bottom of the fixed frame. A cooling component, the bottom of which is fixedly connected to the top of a hot-pressing component, is used to cool the formed dust filter bag.
[0007] Preferably, an adjustable telescopic rod is fixedly connected to the top of the base plate, and a tensioning roller is rotatably connected to the top of the adjustable telescopic rod via a wheel frame.
[0008] Preferably, the cooling component includes a loading block fixedly connected to the hot pressing molding component, and a height telescopic rod is fixedly connected to one side of the loading block. The top end of the height telescopic rod passes through the loading block and extends to the bottom of the loading block.
[0009] Preferably, a horizontal plate is fixedly connected to the top of the height telescopic rod, and a nozzle is fixedly connected to the bottom of the horizontal plate.
[0010] Preferably, a stabilizing plate is fixedly connected to the top of the cross plate, and the top of the stabilizing plate passes through the loading block and extends to the top of the loading block.
[0011] Preferably, a fan is fixedly connected to the top of the loading block, the air inlet of the fan is connected to an air inlet pipe, a baffle ring is fixedly connected to the inner wall of the air inlet pipe, a filter element is movably connected to the top of the baffle ring, and a handle is fixedly connected to the top of the filter element.
[0012] This utility model provides a dust collector filter bag processing and forming device. Compared with the prior art, it has the following advantages: 1. This dust collector filter bag processing and forming device utilizes a hot pressing forming component. The device employs an electric heating roller with a built-in resistance heating structure, which can achieve rapid heating and constant temperature control, ensuring uniform heat distribution on the roller surface and improving the consistency of hot pressing. Combined with an adjustable height tensioning wheel mechanism, it can be flexibly adjusted according to different thicknesses or tension requirements, maintaining stable tension of the filter material, preventing deviation and wrinkles, improving the accuracy of hot pressing, and preventing uneven stretching.
[0013] 2. This dust collector filter bag processing and forming device utilizes a cooling component and a multi-nozzle ambient temperature airflow cooling system to uniformly cool the filter bag after hot pressing, preventing high-temperature deformation. Furthermore, by setting a filter element filtration structure at the air inlet of the power fan, dust and impurities are effectively blocked, ensuring the cleanliness of the cooling air, thereby further improving the surface quality of the filter bag and the service life of the equipment. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This utility model Figure 3 A magnified view of a section at point B in the middle; Figure 5 This is a schematic diagram of the adjustable telescopic rod and tension roller of this utility model.
[0015] In the diagram: 1. Base plate; 2. Material roller; 3. Hot pressing forming assembly; 31. Rewinding roller; 32. Support roller; 33. Fixed frame; 34. Hot pressing roller; 35. Adjustable telescopic rod; 36. Tensioning roller; 4. Cooling assembly; 41. Loading block; 42. Height telescopic rod; 43. Horizontal plate; 44. Nozzle; 45. Stabilizing plate; 46. Fan; 47. Air inlet pipe; 48. Baffle ring; 49. Filter element; 410. Handle. Detailed Implementation
[0016] 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.
[0017] Please see Figures 1-4 This utility model provides two technical solutions: Example 1: A dust collector filter bag processing and forming device, comprising: The bottom plate 1 has a material roller 2 rotatably connected to its top via a bracket; The hot pressing forming assembly 3 is fixedly connected at its bottom to the top of the base plate 1. The hot pressing forming assembly 3 is used to hot press the dust collector filter bag. The hot pressing forming assembly 3 includes a winding roller 31 that is rotatably connected to the top of the base plate 1 via a bracket. The winding roller 31 is effectively driven by an external motor. A support roller 32 is rotatably connected to the top of the base plate 1 via a bracket. A fixed frame 33 is fixedly connected to the top of the base plate 1. A hot pressing roller 34 is rotatably connected to the bottom of the fixed frame 33. For hot pressing the PTFE filter bag, the hot pressing roller 34 adopts a built-in high-temperature resistance heating structure NiCr electric heating tube and an alumina-based ceramic outer fluorinated anti-stick layer. A temperature control system is adopted, including a temperature sensor, a controller and a heating element. The temperature sensor detects the surface temperature of the roller in real time. The controller performs calculations based on the preset temperature value and outputs a control signal to the heating element to achieve automatic and precise adjustment of the temperature of the heating roller. It can achieve stable and uniform heating of 300-360℃, meet the hot pressing requirements of PTFE material, and take into account safety, stability and economy. The support roller 32 is located at the bottom of the hot pressing roller 34, and the surfaces of the two are in close contact. Cooling component 4 is fixedly connected at its bottom to the top of hot pressing component 3. Cooling component 4 is used to cool the dust filter bag after it has been formed. With the hot pressing component 3, the device uses an electric heating roller with a built-in resistance heating structure, which can achieve rapid heating and constant temperature control, ensure uniform heat distribution on the roller surface, and improve the consistency of hot pressing. With the adjustable height tensioning wheel mechanism, it can be flexibly adjusted according to different thicknesses or tension requirements, keep the filter material tension stable, prevent displacement and wrinkles, improve the accuracy of hot pressing, and prevent uneven stretching.
[0018] Example 2 differs from Example 1 primarily in that: a dust collector filter bag processing and forming device has an adjustable telescopic rod 35 fixedly connected to the top of the base plate 1. The adjustable telescopic rod 35 is connected to a hydraulic pump and controlled electronically. A tension roller 36 is rotatably connected to the top of the adjustable telescopic rod 35 via a wheel frame. The cooling component 4 includes a loading block 41 fixedly connected to the hot pressing forming component 3. A height telescopic rod 42 is fixedly connected to one side of the loading block 41 and is connected to a hydraulic pump, controlled electronically. The top of the height telescopic rod 42 penetrates the loading block 41 and extends to its bottom. A horizontal plate 43 is fixedly connected to the top of the height telescopic rod 42, and nozzles 44 are fixedly connected to the bottom of the horizontal plate 43. Multiple nozzles 44 are evenly arranged, and one end of each nozzle 44 is connected to a fan 46 via a flexible hose. The air outlet is connected, and a stabilizing plate 45 is fixedly connected to the top of the horizontal plate 43. The top of the stabilizing plate 45 passes through the loading block 41 and extends to the top of the loading block 41. A fan 46 is fixedly connected to the top of the loading block 41. An air inlet 47 is connected to the air inlet of the fan 46. The air inlet 47 is horizontal and S-shaped. A baffle ring 48 is fixedly connected to the inner wall of the air inlet 47. A filter element 49 is movably connected to the top of the baffle ring 48. A handle 410 is fixedly connected to the top of the filter element 49. With the cooling component 4, the device is also equipped with a multi-nozzle ambient temperature airflow cooling system. After hot pressing, the filter bag is cooled evenly to prevent high temperature deformation. By setting a filter element filtration structure at the air inlet of the power fan, dust and impurities are effectively blocked to ensure the cleanliness of the cooling air, thereby further improving the surface quality of the filter bag and the service life of the equipment.
[0019] The dust collector filter bag is heated on both sides.
[0020] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0021] During operation, the rolled dust collector filter bags move from the material roller 2 to the tension roller 36, through the support roller 32 and the hot press roller 34, and are finally wound up by the take-up roller 31. The overall operation proceeds from right to left. The hot press roller 34 is turned on to heat-press the PTFE-coated dust collector filter bags, which are supported by the support roller 32. When dust collector filter bags of different thicknesses pass through the tension roller 36, the height of the telescopic rod 35 is adjusted to make the tension roller 36 taut with the surface of the dust collector filter bag. Then, when passing through the bottom of the nozzle 44, the fan 46 is turned on to draw air in through the air inlet pipe 47. The air is filtered by the filter element 49 in the air inlet pipe 47 and then sprayed onto the surface of the dust collector filter bag through the nozzle 44 to accelerate airflow and shorten the cooling time. After the filter element 49 has been working at full load, the handle 410 is pulled up, and the bottom of the filter element 49 separates from the retaining ring 48. The filter element 49 is then separated from the air inlet pipe 47, replaced, and continues to work. When the device is completely finished, it is restored to its original state.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dust collector filter bag processing and forming device, characterized in that, include: The bottom plate (1) has a material roller (2) rotatably connected to its top via a bracket. The hot pressing forming assembly (3) is fixedly connected at the bottom to the top of the base plate (1). The hot pressing forming assembly (3) is used to hot press the dust filter bag. The hot pressing forming assembly (3) includes a winding roller (31) rotatably connected to the top of the base plate (1) via a bracket. A support roller (32) is rotatably connected to the top of the base plate (1) via a bracket. A fixed frame (33) is fixedly connected to the top of the base plate (1). A hot pressing roller (34) is rotatably connected to the bottom of the fixed frame (33). Cooling component (4), the bottom of which is fixedly connected to the top of hot pressing component (3), is used to cool the dust filter bag after it is formed.
2. The dust collector filter bag processing and forming device according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to an adjustable telescopic rod (35), and the top of the adjustable telescopic rod (35) is rotatably connected to a tension roller (36) via a wheel frame.
3. The dust collector filter bag processing and forming device according to claim 1, characterized in that: The cooling component (4) includes a loading block (41) fixedly connected to the hot pressing component (3). A height telescopic rod (42) is fixedly connected to one side of the loading block (41). The top end of the height telescopic rod (42) passes through the loading block (41) and extends to the bottom of the loading block (41).
4. The dust collector filter bag processing and forming device according to claim 3, characterized in that: A horizontal plate (43) is fixedly connected to the top of the height telescopic rod (42), and a nozzle (44) is fixedly connected to the bottom of the horizontal plate (43).
5. The dust collector filter bag processing and forming device according to claim 4, characterized in that: A stabilizing plate (45) is fixedly connected to the top of the horizontal plate (43), and the top of the stabilizing plate (45) passes through the loading block (41) and extends to the top of the loading block (41).
6. The dust collector filter bag processing and forming device according to claim 3, characterized in that: A fan (46) is fixedly connected to the top of the loading block (41). The air inlet of the fan (46) is connected to an air inlet pipe (47). A retaining ring (48) is fixedly connected to the inner wall of the air inlet pipe (47). A filter element (49) is movably connected to the top of the retaining ring (48). A handle (410) is fixedly connected to the top of the filter element (49).
