An automatic filter paper assembling device for filter assembly
By using transmission components and limiting mechanisms, the guide wheel spacing in the filter paper assembly device can be adjusted quickly and accurately, solving the problems of low efficiency and poor consistency in guide wheel spacing adjustment in the prior art, and improving the stability and automation level of filter paper assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI WAL FUEL SYST CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-12
AI Technical Summary
In the current filter paper assembly process, the guide wheel spacing adjustment is inefficient and the accuracy depends on manual operation, making it difficult to ensure consistency. This affects the stability of filter paper feeding and assembly quality, and the lack of rapid positioning and repeat positioning functions limits the application of automation.
The system uses a transmission assembly to move the sliding support rod and the top support plate. By pulling the threaded rod, the spacing between multiple movable guide wheels is adjusted synchronously. Combined with the positioning slot and the limiting cooperation of the guide wheel assembly base, the guide wheels can be quickly and accurately positioned and uniformly adjusted.
It improves the efficiency and consistency of guide wheel spacing adjustment, ensures the stability of the filter paper assembly process and the adaptability of automated equipment, and is suitable for rapid switching of multiple product specifications.
Smart Images

Figure CN224347280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automatic filter assembly equipment, specifically an automatic filter paper assembly device for filter assembly. Background Technology
[0002] In the filter manufacturing process, filter paper is typically supplied in roll form and undergoes a series of processes including unfolding, guiding, cutting, and forming before being finally installed into the filter housing. To ensure that the filter paper can be smoothly conveyed along a predetermined path before assembly, multiple guide rollers are used to clamp and guide the filter paper, thereby preventing deviation, wrinkling, or curling during transport. Guide rollers are usually arranged in pairs, located on both sides of the filter paper, forming clamping channels. Appropriate spacing is used to match the filter paper thickness, enabling adaptation to different specifications of filter paper. The accuracy of the guide roller spacing adjustment directly affects the smoothness of filter paper introduction and the stability of subsequent assembly processes. Therefore, the arrangement and adjustment structure of the guide rollers in automated assembly equipment has significant technical importance.
[0003] In the current filter paper assembly process, to accommodate filter papers of different thicknesses or specifications, it is usually necessary to adjust the spacing between multiple guide rollers to ensure the guiding stability of the filter paper during transport and pressing. Traditional adjustment methods often involve manually loosening the locking mechanism of each guide roller, adjusting its position, and then locking it back in place. This method is not only inefficient but also relies on human judgment for accuracy, making it difficult to ensure consistent spacing between guide rollers. This can easily lead to problems such as unstable filter paper clamping, misalignment, or damage, affecting overall assembly quality and production cycle time. Furthermore, traditional structures lack rapid and repeatable positioning functions for roller group positioning and replacement, limiting their flexibility and scalability in automated assembly lines. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide an automatic filter paper assembly device for filter assembly, which aims to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An automatic filter paper assembly device for filter assembly includes a base, a sliding support rod slidably connected to the surface of the base, and a support top plate connected to one end of the sliding support rod. The surface of the support top plate is provided with a plurality of threaded holes, and a pulling threaded rod is engaged inside the threaded holes.
[0007] The base has several positioning slots on its surface, and a guide wheel base is provided inside the positioning slots. The guide wheel base is slidably connected to a movable guide wheel and fixedly connected to a reference guide wheel. The movable guide wheel has a positioning threaded groove on its surface.
[0008] The base has a transmission component on its surface, and the transmission component has a connecting rod on its surface, which is connected to the sliding support rod.
[0009] Furthermore, the surface of the guide wheel base is provided with a groove, the surface of the movable guide wheel is provided with a sliding strip, and the movable guide wheel is slidably connected to the guide wheel base through the cooperation of the sliding strip and the groove;
[0010] The surface of the guide wheel base is provided with a threaded tube, and the internal part of the threaded tube is engaged with a positioning threaded rod.
[0011] Furthermore, the outer diameter of the threaded rod is the same as the inner diameter of the threaded hole and the positioning threaded groove.
[0012] Furthermore, both the traction threaded rod and the positioning threaded rod are equipped with a torsion handle at one end.
[0013] Furthermore, a guide rail is installed on the surface of the base, and a guide slider is provided at one end of the sliding support rod. The sliding support rod is slidably connected to the surface of the base through the cooperation of the guide rail and the guide slider.
[0014] Furthermore, the guide wheel assembly base and the positioning slot are in a limiting fit relationship, and their cross-sectional shapes are consistent.
[0015] Furthermore, the transmission assembly includes a servo motor and a bearing housing, both of which are mounted on the surface of the base. A ball screw is mounted on one end of the servo motor and inside the bearing housing, and a ball nut is fitted onto the surface of the ball screw.
[0016] Furthermore, a mounting base is provided on the lower surface of the base.
[0017] The automatic filter paper assembly device for filter assembly provided by this utility model has the following beneficial effects:
[0018] This invention uses a transmission assembly to drive the sliding support rod and the supporting top plate to move as a whole, thereby achieving synchronous traction adjustment of multiple movable guide wheels by multiple traction threaded rods. This effectively improves the efficiency and consistency of guide wheel spacing adjustment, avoids errors and deviations caused by manual operation, and ensures the stability and reliability of the filter paper assembly process. The limiting fit structure between the positioning slot and the guide wheel assembly base enables rapid and accurate positioning of each wheel assembly, simplifies the overall assembly process, and helps improve the automation level and product adaptability of filter assembly equipment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of an automatic filter paper assembly device for filter assembly.
[0020] Figure 2 This is a front sectional view of a support top plate in an automatic filter paper assembly device for filter assembly.
[0021] Figure 3 This is a side view of the guide wheel base and movable guide wheel in an automatic filter paper assembly device for filter assembly.
[0022] Figure 4 This is a front structural diagram of the guide wheel assembly base and movable guide wheel in an automatic filter paper assembly device for filter assembly.
[0023] Figure 5 This is a schematic diagram of the base and transmission components in an automatic filter paper assembly device for filter assembly.
[0024] In the diagram: 1. Base; 2. Sliding support rod; 3. Supporting top plate; 4. Pulling threaded rod; 5. Movable guide wheel; 6. Mounting base; 7. Transmission assembly; 71. Servo motor; 72. Ball nut; 73. Ball screw; 74. Bearing seat; 8. Connecting rod; 9. Guide wheel assembly base; 10. Positioning slot; 11. Threaded hole; 12. Positioning threaded rod; 13. Threaded tube; 14. Sliding bar; 15. Slide groove; 16. Reference guide wheel; 17. Positioning threaded groove. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0027] like Figures 1-5As shown in the figure, an automatic filter paper assembly device for filter assembly provided by this utility model includes a base 1, a sliding support rod 2 slidably connected to the surface of the base 1, and a support top plate 3 connected to one end of the sliding support rod 2. The surface of the support top plate 3 is provided with a plurality of threaded holes 11, and a pulling threaded rod 4 is engaged inside the threaded holes 11.
[0028] The surface of the base 1 is provided with several positioning slots 10, and the inside of the positioning slots 10 is provided with a guide wheel base 9. The guide wheel base 9 and the positioning slots 10 are in a limiting fit relationship, and their cross-sectional shapes are consistent.
[0029] The guide wheel base 9 has a movable guide wheel 5 slidably connected to its surface and a reference guide wheel 16 fixedly connected to it. The movable guide wheel 5 has a positioning threaded groove 17 on its surface. The outer diameter of the pull threaded rod 4 is the same as the inner diameter of the threaded hole 11 and the positioning threaded groove 17.
[0030] The guide wheel base 9 has a groove 15 on its surface, and the movable guide wheel 5 has a sliding strip 14 on its surface. The movable guide wheel 5 is slidably connected to the guide wheel base 9 through the cooperation of the sliding strip 14 and the groove 15.
[0031] The surface of the guide wheel base 9 is provided with a threaded tube 13, and the internal part of the threaded tube 13 is engaged with a positioning threaded rod 12.
[0032] A transmission component 7 is provided on the surface of the base 1, and a connecting rod 8 is provided on the surface of the transmission component 7. The connecting rod 8 is connected to the sliding support rod 2.
[0033] In one embodiment of this invention, the filter paper needs to be precisely clamped and guided between multiple sets of guide rollers. Since filter paper of different specifications varies in thickness, the spacing between the guide rollers needs to be adjusted accordingly. If the spacing between the sets of guide rollers is inconsistent, it will lead to uneven force on the filter paper, misalignment during operation, or even damage, severely affecting the filter paper's feeding efficiency and assembly quality.
[0034] Current technology primarily employs manual adjustment. Operators must loosen the locking mechanisms on each guide wheel group, manually move the movable guide wheels to the target position, and then tighten them one by one. This method is time-consuming when changing products, relies heavily on manual experience, and suffers from low adjustment accuracy and poor repeatability, hindering the efficient operation of automated production lines.
[0035] In this invention, a simple and synchronized adjustment mechanism enables rapid adjustment of the guide wheel spacing. In actual operation, the guide wheel base 9 is first sequentially placed into the positioning slots 10 on the surface of the base 1. Since the cross-sections of the guide wheel base 9 and the positioning slots 10 are identical, stable engagement and positioning are achieved. Subsequently, the positioning threaded rod 12 on the guide wheel base 9, which limits the position of the movable guide wheel 5, is released, allowing the movable guide wheel 5 to be in a movable state.
[0036] During continued operation, each movable guide wheel 5 is slid along the slide groove 15 to the position furthest from the reference guide wheel 16. At this point, the transmission assembly 7 is in its initial position, and the sliding support rod 2 has not yet moved. Since the surface of the movable guide wheel 5 is provided with a positioning threaded groove 17, after being adjusted to the furthest end, the positioning threaded groove 17 is just below the pulling threaded rod 4. The operator then rotates the pulling threaded rod 4 into the threaded hole 11, so that it cooperates with the positioning threaded groove 17 to complete the positioning connection.
[0037] After all the threaded rods 4 are connected, the target distance for movement is predetermined according to the current filter paper specifications and input into the control system of the transmission assembly 7. Then, the transmission assembly 7 is activated, driving the connecting rod 8 and sliding support rod 2 to move. The sliding support rod 2 then drives several threaded rods 4 on the supporting top plate 3 to move as a whole. The threaded rods 4, through their engagement with the positioning threaded groove 17, synchronously push several movable guide wheels 5 towards the reference guide wheel 16. As the transmission assembly 7 completes its operation at the preset distance, all movable guide wheels 5 are adjusted to the target position. Finally, the positioning threaded rod 12 is tightened again to lock the position, completing the unified adjustment of the spacing between multiple sets of guide wheels.
[0038] This technical solution eliminates the need for individual operation of each set of movable guide wheels 5, significantly reducing adjustment time, ensuring consistency in spacing between sets, and effectively improving the stability and automation of the filter paper assembly process. This structure is particularly suitable for rapid switching between multiple product specifications in filter assembly lines, possessing significant practical value and promising prospects for widespread adoption.
[0039] The transmission component 7 can take the form of a lead screw guide mechanism, a linear motor push plate system, or a cylinder slide system. It can be flexibly selected based on system accuracy requirements and site space layout to achieve dual optimization of drive efficiency and structural integration.
[0040] To ensure that the above adjustment process is fully feasible in terms of structural operation, the following further describes the coordination relationship and action details between the key components.
[0041] The guide wheel base 9 can be fitted into the positioning slot 10 via an interlocking mechanism. Insertion is a horizontal, linear sliding motion, and after insertion, its edge conforms to the inner wall of the slot, forming a stable position. To ensure assembly accuracy, the bottom surface of the guide wheel base 9 can be slightly larger than the bottom surface of the slide groove to form a slight interference fit, or a positioning limiting shoulder can be provided on the side to cooperate with the corresponding limiting structure inside the slot 10, enabling quick insertion and repeated positioning.
[0042] One end of the threaded rod 4 can be equipped with a mating protrusion or a limiting shoulder. After the axial dimension is designed to fit, it can naturally align with the positioning threaded groove 17 on the movable guide wheel 5 after being turned into the threaded hole 11, forming a semi-embedded limiting fit. The relative position between the threaded rod 4 and the positioning threaded groove 17 can be indirectly determined by the filter paper thickness parameter, which is suitable for standardized assembly cycle control.
[0043] The sliding support rod 2 and the base 1 are connected by a sliding structure. Linear guide rails or support sub-shafts can be arranged at both ends or in the middle of the rod, and the guiding stability and smooth sliding are improved by lubrication grooves or dustproof sleeves. The support top plate 3 is fixedly connected to the sliding support rod 2 and maintains a translational state during sliding, which is used to drive the threaded rod 4 to advance equidistantly in a straight line.
[0044] The sliding structure of the movable guide wheel 5 adopts a sliding bar 14 inserted into the groove 15 in the guide wheel assembly base 9, with a guide surface in the length direction between them. The end of the sliding bar 14 may have a limit protrusion or a flexible buffer component to determine the initial position. The distance between the outermost position of the movable guide wheel 5 and the reference guide wheel 16 is set as the maximum stroke to facilitate subsequent uniform adjustment.
[0045] Multiple threaded rods 4 on the supporting top plate 3 are driven inward by the sliding support rod 2 under the drive of the transmission assembly 7. Before moving, the threaded rods 4 have completed the threaded engagement with their respective movable guide wheels 5. During the inward sliding process, the threaded rods 4 drive the movable guide wheels 5 to achieve synchronous advancement through rolling or sliding, and finally achieve uniform adjustment of the guide wheel spacing.
[0046] In this embodiment, both the traction threaded rod 4 and the positioning threaded rod 12 are equipped with a torsion handle at one end. This facilitates quick screwing in or out by the operator during assembly or adjustment. When the traction threaded rod 4 is screwed into the threaded hole 11 by torsion, it quickly connects with the positioning threaded groove 17 on the movable guide wheel 5, achieving traction engagement. Meanwhile, the positioning threaded rod 12 is tightened or loosened by torsion, locking or releasing the movable guide wheel 5. This structure not only improves adjustment efficiency but also facilitates on-site maintenance and repeated adjustments, reduces tool-dependent operation steps, and enhances the practicality and convenience of the structure.
[0047] In this embodiment, a guide rail is installed on the surface of the base 1, and a guide slider is provided at one end of the sliding support rod 2. The sliding support rod 2 is slidably connected to the surface of the base 1 through the cooperation of the guide rail and the guide slider. The guide rail on the surface of the base 1 and the guide slider at one end of the sliding support rod 2, slidably connected to the surface of the base 1 through the cooperation of the guide rail and the guide slider, ensure that the sliding support rod 2 moves stably and linearly in a predetermined direction during movement. The sliding cooperation between the guide rail and the guide slider effectively prevents the support rod from deviating or wobbling, improves the transmission accuracy of the supporting top plate 3 and its driven threaded rod 4 during adjustment, and enhances the overall stability of the device. This also helps to achieve balanced propulsion and repeated positioning when multiple sets of movable guide wheels 5 are synchronously adjusted.
[0048] In this embodiment, the transmission assembly 7 includes a servo motor 71 and a bearing housing 74, both of which are mounted on the surface of the base 1. A ball screw 73 is mounted on one end of the servo motor 71 and inside the bearing housing 74, and a ball nut 72 is fitted onto the surface of the ball screw 73. This structure is used to achieve high-precision linear drive of the actuating component. The ball screw 73 is driven to rotate by the servo motor 71, which drives the ball nut 72 to move axially along the screw, thereby achieving linear advancement of the sliding support rod 2. The rolling transmission between the ball bearings significantly reduces friction, improves transmission efficiency and response speed, and, in conjunction with the bearing housing 74, enhances the support rigidity and operational stability of the transmission structure, contributing to the stable and consistent adjustment of the movable guide wheel 5.
[0049] In this embodiment, a mounting base 6 is provided on the lower surface of the base 1. This facilitates the overall installation of the device on the filter paper assembly platform. The mounting base 6 ensures stable positioning of the structure, maintaining good structural support and positional fixation during operation. This guarantees the installation accuracy of each component on the assembly platform and prevents shaking during transmission, which is beneficial for the integrated application of the whole machine and assembly line, as well as on-site deployment.
[0050] 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 and improvements 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. An automatic filter paper assembly device for filter assembly, comprising a base (1), characterized in that, The base (1) is slidably connected to a sliding support rod (2), and one end of the sliding support rod (2) is connected to a supporting top plate (3). The surface of the supporting top plate (3) is provided with several threaded holes (11), and the threaded holes (11) are internally engaged with a pulling threaded rod (4). The base (1) has several positioning slots (10) on its surface, and a guide wheel base (9) is provided inside the positioning slots (10). The guide wheel base (9) is slidably connected to a movable guide wheel (5) and fixedly connected to a reference guide wheel (16). The movable guide wheel (5) has a positioning thread groove (17) on its surface. The base (1) is provided with a transmission component (7) on its surface, and a connecting rod (8) is provided on the surface of the transmission component (7), and the connecting rod (8) is connected to the sliding support rod (2).
2. The automatic filter paper assembly device for filter assembly according to claim 1, characterized in that, The guide wheel base (9) has a groove (15) on its surface, and the movable guide wheel (5) has a sliding strip (14) installed on its surface. The movable guide wheel (5) is slidably connected to the guide wheel base (9) through the cooperation of the sliding strip (14) and the groove (15). The surface of the guide wheel base (9) is provided with a threaded tube (13), and the threaded tube (13) is internally connected to a positioning threaded rod (12).
3. The automatic filter paper assembly device for filter assembly according to claim 1, characterized in that, The outer diameter of the traction threaded rod (4) is the same as the inner diameter of the threaded hole (11) and the positioning threaded groove (17).
4. The automatic filter paper assembly device for filter assembly according to claim 2, characterized in that, Both the traction threaded rod (4) and the positioning threaded rod (12) are equipped with a torsion handle at one end.
5. The automatic filter paper assembly device for filter assembly according to claim 1, characterized in that, The base (1) is equipped with a guide rail, and one end of the sliding support rod (2) is provided with a guide slider. The sliding support rod (2) is slidably connected to the surface of the base (1) through the cooperation of the guide rail and the guide slider.
6. The automatic filter paper assembly device for filter assembly according to claim 1, characterized in that, The guide wheel base (9) and the positioning slot (10) are in a limiting fit relationship, and their cross-sectional shapes are consistent.
7. The automatic filter paper assembly device for filter assembly according to claim 1, characterized in that, The transmission assembly (7) includes a servo motor (71) and a bearing housing (74), and both the servo motor (71) and the bearing housing (74) are mounted on the surface of the base (1). A ball screw (73) is mounted on one end of the servo motor (71) and inside the bearing housing (74), and a ball nut (72) is sleeved on the surface of the ball screw (73).
8. The automatic filter paper assembly device for filter assembly according to claim 1, characterized in that, The lower surface of the base (1) is provided with a mounting base (6).