Folding device

Abstract

The application discloses a folding device, and belongs to the field of filter bag production of dust collectors. The main purpose is to realize automatic folding and arrangement of filter cylinders to be processed. The main technical scheme of the application is as follows: the folding device comprises a rack, at least one first guide wheel, at least one second guide wheel and a traction mechanism. The first guide wheel and the second guide wheel are arranged in a staggered manner along the height direction of the rack, and the axes of the first guide wheel and the second guide wheel have a preset offset in the length direction of the rack. The traction mechanism is used for clamping one end of a filter cylinder to be processed, and driving the filter cylinder to be processed to move along a folding path defined by the first guide wheel and the second guide wheel.

Description

Technical Field

[0001] This application belongs to the field of dust collector filter bag manufacturing technology, specifically relating to a folding device. Background Technology

[0002] In the field of environmental protection equipment, dust collector filter bags are typically made of non-woven fabric into a cylindrical filter cartridge structure. During the filter cartridge production process, the cartridges need to be folded to achieve centralized storage and efficient sewing of both ends. However, currently, the filter cartridge folding process in the industry largely relies on manual operation, resulting in high labor intensity and low work efficiency for workers. Utility Model Content

[0003] In view of this, this application provides a folding device, the main purpose of which is to realize the automated folding and sorting of filter cartridges to be processed.

[0004] To achieve the above objectives, this application mainly provides the following technical solutions:

[0005] This application provides a folding device, including:

[0006] frame;

[0007] At least one first guide wheel and at least one second guide wheel, wherein the first guide wheel and the second guide wheel are staggered along the height direction of the frame, and the axes of the first guide wheel and the second guide wheel have a predetermined offset in the length direction of the frame;

[0008] A traction mechanism is used to clamp one end of the filter cartridge to be processed and drive the filter cartridge to be processed to move along the folding path defined by the first guide wheel and the second guide wheel.

[0009] Optionally, the first guide wheel and the second guide wheel are rotatably mounted on the frame via a rotating connector.

[0010] Optionally, the preset offset is adjustable.

[0011] Optionally, one of the first guide wheel and the second guide wheel is fixed in position on the frame, while the other can slide along the length of the frame and be fixed in a preset position.

[0012] Optionally, the traction mechanism includes:

[0013] A clamping part is provided for detachably fixing one end of the filter cartridge to be processed;

[0014] A first linear module, the movable end of the first linear module is connected to the clamping part, and the first linear module is used to drive the clamping part to move linearly along the height direction of the frame;

[0015] The second linear module has a moving end connected to the first linear module. The second linear module is used to drive the first linear module and the clamping part to move linearly along the length direction of the frame.

[0016] The first linear drive module cooperates with the second linear drive module to move the clamping part along the folding path defined by the first guide wheel and the second guide wheel.

[0017] Optionally, the clamping part includes:

[0018] Fixed clamp;

[0019] A movable clamping plate is used to move towards the fixed clamping plate under the action of a cylinder or an electric push rod, so that the fixed clamping plate and the movable plate cooperate to form a clamping surface to clamp the filter cylinder to be processed.

[0020] Optionally, the traction mechanism further includes:

[0021] A rotary platform is disposed between the moving end of the first linear drive module and the clamping part, and the rotary platform is configured as follows:

[0022] The fixed end of the rotary platform is connected to the moving end of the first linear drive module, and moves along the height direction of the frame with the first linear drive module.

[0023] The rotary output end of the rotary platform is connected to the clamping part, and is used to drive the clamping part to rotate around the rotation axis;

[0024] The rotation axis is parallel to the axial direction of the first guide wheel and the second guide wheel.

[0025] Optionally, the folding device further includes:

[0026] A feeding mechanism is provided on the upstream side of the first guide wheel and the second guide wheel, and the feeding mechanism is used to feed the filter cartridge to be processed into the folding path defined by the first guide wheel and the second guide wheel;

[0027] The feeding mechanism includes:

[0028] A first feeding roller and a second feeding roller, the first feeding roller and the second feeding roller are parallel to each other and arranged opposite each other, to form a feeding gap for clamping the filter cylinder to be processed;

[0029] A drive unit is connected to the first feeding roller and / or the second feeding roller. The drive unit is used to drive the first feeding roller and the second feeding roller to rotate synchronously in opposite directions so that the filter cartridge to be processed moves along the length direction of the frame.

[0030] Optionally, the folding device further includes:

[0031] A cutting mechanism is provided downstream of the feeding mechanism and is used to cut the folded filter cartridge to be processed.

[0032] The cutting mechanism includes:

[0033] A fixed blade assembly is disposed on the frame and is used to form a cutting station;

[0034] A moving blade assembly is movably disposed at the cutting station. The moving blade assembly is movable relative to the fixed blade assembly, and at least a portion of the movement trajectory of the moving blade assembly coincides with the conveying path of the filter cartridge to be processed.

[0035] Optionally, the folding device further includes:

[0036] An ejection mechanism is used to eject the folded filter cartridge to be processed from the first guide wheel and the second guide wheel;

[0037] The launching agencies include:

[0038] A material pusher drive component, which is fixedly mounted on the frame;

[0039] A material pusher actuator is connected to the output end of the material pusher drive. The material pusher drive is used to drive the material pusher actuator to move. The movement trajectory of the material pusher actuator covers the folding path area between the first guide wheel and the second guide wheel.

[0040] By employing the above technical solution, this application has at least the following beneficial effects:

[0041] The folding device provided in the embodiments of this application, by offsetting the first guide wheel and the second guide wheel in the height direction of the frame and having a preset offset between their axes in the length direction of the frame, can create a height difference in the vertical direction and a lateral displacement in the horizontal direction, thereby guiding the filter cartridge to be processed to form a unidirectional gradually rising folding trajectory during movement, avoiding a straight folding path and thus enhancing the folding effect. By setting a traction mechanism, one end of the filter cartridge to be processed can be clamped and driven to move along the above-mentioned folding path, transforming manual pulling operation into mechanical automated operation, reducing manual intervention, lowering labor intensity and improving work efficiency. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of a folding device according to an optional embodiment of this application from one perspective;

[0043] Figure 2 This is a schematic diagram of the folding device from another perspective, representing an alternative embodiment of this application.

[0044] Figure 3 This is a schematic diagram of the traction mechanism of an optional embodiment of this application.

[0045] The reference numerals in the attached figures are as follows:

[0046] 1. Frame; 2. First guide wheel; 3. Second guide wheel; 4. Traction mechanism; 41. Clamping part; 411. Fixed clamping plate; 412. Movable clamping plate; 42. First linear module; 43. Second linear module; 44. Rotary platform; 5. Feeding mechanism; 51. First feeding roller; 52. Second feeding roller; 53. Drive unit; 6. Cutting mechanism; 61. Fixed blade assembly; 62. Moving blade assembly; 7. Pushing mechanism; 71. Pushing drive component; 72. Pushing actuator component; 8. Filter cartridge to be processed. Detailed Implementation

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0051] See also Figures 1 to 3 As shown, according to an embodiment of this application, a folding device is provided, including a frame 1, at least one first guide wheel 2 and at least one second guide wheel 3, and a traction mechanism 4; the first guide wheel 2 and the second guide wheel 3 are staggered along the height direction of the frame 1, and the axes of the first guide wheel 2 and the second guide wheel 3 have a preset offset in the length direction of the frame 1; the traction mechanism 4 is used to clamp one end of the filter cylinder 8 to be processed, and drive the filter cylinder 8 to be processed to move along the folding path defined by the first guide wheel 2 and the second guide wheel 3.

[0052] In this embodiment, by offsetting the first guide wheel 2 and the second guide wheel 3 in the height direction of the frame 1, and by having a preset offset between their axes in the length direction of the frame 1, a height difference can be formed in the vertical direction and a lateral displacement can be generated in the horizontal direction. This guides the filter cylinder 8 to be processed to form a unidirectional gradually rising folding trajectory during movement, avoiding a straight folding path and thus enhancing the folding effect. By setting a traction mechanism 4, one end of the filter cylinder 8 to be processed can be clamped and driven to move along the folding path, transforming manual pulling operations into automated mechanical operations, reducing manual intervention, lowering labor intensity, and improving work efficiency.

[0053] Among them, the frame 1 serves as the supporting structure for the entire folding device, providing an installation base for the first guide wheel 2, the second guide wheel 3, and the traction mechanism 4, ensuring that the positions of the first guide wheel 2, the second guide wheel 3, and the traction mechanism 4 are fixed and stable.

[0054] Specifically, in this embodiment, the frame 1 adopts a plate-like structure design and is arranged vertically, and the first guide wheel 2, the second guide wheel 3 and the traction mechanism 4 are all installed on the same side of the frame 1.

[0055] The first guide wheel 2 and the second guide wheel 3 are at different heights in the vertical direction, creating a vertical drop. For example, the first guide wheel 2 is positioned higher, and the second guide wheel 3 is positioned lower. The projections of the first guide wheel 2 and the second guide wheel 3 onto the length of the frame 1 also have a horizontal distance, creating a horizontal misalignment. This horizontal misalignment is a predetermined offset of the axes of the first guide wheel 2 and the second guide wheel 3 along the length of the frame 1. For example, the first guide wheel 2 is offset to the right, and the second guide wheel 3 is offset to the left. Consequently, the filter cartridge 8 to be processed is forced to change its direction of movement when passing the guide wheels, forming a complex folding path, such as a Z-shape or S-shape, avoiding straight-line movement.

[0056] Specifically, in this embodiment, at least one first guide wheel 2 and at least one second guide wheel 3 are provided. When more than one first guide wheel 2 and at least one second guide wheel 3 are provided, the multiple first guide wheels 2 are arranged at intervals along the height direction of the frame 1, and the multiple second guide wheels 3 are also distributed at intervals along the height direction of the frame 1. Furthermore, any adjacent first guide wheels 2 and second guide wheels 3 maintain a layout relationship where they are staggered along the height direction of the frame 1 and their axes have a preset offset along the length direction of the frame 1. This ensures that the filter cartridge 8 to be processed can move along a continuous and regular folding path when passing through multiple sets of guide wheels, continuously enhancing the folding effect and further improving the stability of folding efficiency and quality. At the same time, the traction mechanism 4 can flexibly adjust the clamping and driving strategies according to the number and layout of the guide wheels to ensure that the filter cartridge 8 to be processed passes smoothly through the entire folding path.

[0057] The traction mechanism 4 includes a clamping device and a drive system. The clamping device can be a gripper or a suction cup structure to firmly fix one end of the filter cylinder 8 to be processed, ensuring that it does not fall off during movement. The drive system can be composed of a motor, a transmission belt or a cylinder, etc., to pull the filter cylinder along the folding path, so that it passes through the first guide wheel 2 and the second guide wheel 3 on the folding path in sequence to complete the folding action.

[0058] Specifically, taking the example of the first guide wheel 2 being higher and the second guide wheel 3 being lower, with the first guide wheel 2 offset to the right in the horizontal direction relative to the second guide wheel 3: In practical applications, one end of the filter cylinder 8 to be processed is fixed to the clamping device of the traction mechanism 4, while the other end remains free. When the traction mechanism 4 drives the filter cylinder 8 to be processed to move, the filter cylinder 8 first contacts the lower-positioned second guide wheel 3 and is forced to bend upward due to its height limitation; simultaneously, due to the rightward misalignment between the first guide wheel 2 and the second guide wheel 3 in the horizontal direction (i.e., the first guide wheel 2 is located to the right of the second guide wheel 3), the filter cylinder 8 will simultaneously shift to the right during the upward bending process until it moves to the first guide wheel 2, at which point the folding process ends. The traction mechanism 4 then releases the filter cylinder 8 through the clamping device and removes the folded filter cylinder 8. It can be understood that if there are multiple sets of guide wheels, the above process is repeated to form continuous Z-shaped or S-shaped alternating folds, ultimately resulting in a regular folded shape.

[0059] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, the first guide wheel 2 and the second guide wheel 3 are rotatably mounted on the frame 1 via a rotating connector.

[0060] In this embodiment, by making the first guide wheel 2 and the second guide wheel 3 rotatable, the relative motion between the filter cartridge 8 to be processed and the first guide wheel 2 and the second guide wheel 3 is changed from sliding friction to rolling friction, which greatly reduces the contact resistance and avoids wear, wrinkles or tears caused by sliding friction when the filter cartridge 8 to be processed moves.

[0061] It is understood that in this embodiment, the first guide wheel 2 and the second guide wheel 3 adopt the same structural design, and are collectively referred to as "guide wheels" below.

[0062] The guide wheel includes a wheel body and a wheel axle. The wheel body can be a cylindrical roller with a smooth surface, used to support and guide the movement of the filter cartridge 8 to be processed. The wheel axle can be a metal shaft passing through the center of the wheel body, which cooperates with the rotating connector to achieve rotation.

[0063] The rotating connector can be a bearing assembly, including rolling bearings (such as deep groove ball bearings and tapered roller bearings) or sliding bearings, with the inner ring having an interference fit with the axle and the outer ring fixed to the frame 1.

[0064] Specifically, in practical applications, when the traction mechanism 4 pulls the filter cartridge 8 to be processed, the filter cartridge 8 comes into contact with the surface of the guide wheel, generating friction and driving the guide wheel to rotate around its axis. The rotation direction of the guide wheel is synchronized with the movement direction of the filter cartridge 8 to be processed, thus converting sliding friction into rolling friction.

[0065] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, the preset offset is adjustable.

[0066] In this embodiment, by adjusting the preset offset (i.e., horizontal misalignment distance) between the first guide wheel 2 and the second guide wheel 3 along the length of the frame 1, the lateral displacement of the filter cartridge 8 to be processed during the folding process can be changed, thereby adjusting the "torsion" of the folding trajectory (e.g., changing from a smaller Z-shape to a wider S-shape). Thus, the same folding device can quickly switch between producing filter cartridges 8 of different specifications by adjusting the offset, reducing equipment replacement costs and improving the flexibility of the production line.

[0067] In the above embodiments, see Figure 1 and 2 As shown, one of the first guide wheel 2 and the second guide wheel 3 is fixed in position on the frame 1, while the other can slide along the length of the frame 1 and be fixed in a preset position.

[0068] In some specific examples, the first guide wheel 2 is fixed in position on the frame 1, and the second guide wheel 3 can slide along the length of the frame 1 and be fixed in a preset position; in other specific examples, the second guide wheel 3 is fixed in position on the frame 1, and the first guide wheel 2 can slide along the length of the frame 1 and be fixed in a preset position.

[0069] Specifically, in this embodiment, the first guide wheel 2 is fixed in position on the frame 1, and the second guide wheel 3 can slide along the length of the frame 1 and be fixed in a preset position. The specific structure is as follows: a groove extending along the length direction is provided on the frame 1, and a slider is slidably disposed in the groove. The slider is a plate-shaped structure used to install the axle or rotating connector (such as a bearing assembly) of the second guide wheel 3. By sliding the slider along the groove, the second guide wheel 3 can be moved in the length direction (horizontal direction) of the frame 1, changing its preset offset from the first guide wheel 2. At the same time, the slider is provided with a locking structure. For example, a through hole is provided on the slider, and a bolt is passed through the through hole and the groove and tightened. The position of the slider is fixed by the friction between the bolt head and the surface of the frame 1, so as to achieve the purpose of fixing the second guide wheel 3 in the preset position.

[0070] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 3 As shown, the traction mechanism 4 includes a clamping part 41, a first linear module 42, and a second linear module 43. The clamping part 41 is used to detachably fix one end of the filter cartridge 8 to be processed. The moving end of the first linear module 42 is connected to the clamping part 41, and the first linear module 42 is used to drive the clamping part 41 to move linearly along the height direction of the frame 1. The moving end of the second linear module 43 is connected to the first linear module 42, and the second linear module 43 is used to drive the first linear module 42 and the clamping part 41 to move linearly along the length direction of the frame 1. The first linear drive module and the second linear drive module cooperate to make the clamping part 41 move along the folding path defined by the first guide wheel 2 and the second guide wheel 3.

[0071] In this embodiment, the first linear module 42 drives the clamping part 41 to move along the height direction (vertical direction) of the frame 1, and the second linear module 43 drives the clamping part 41 to move along the length direction (horizontal direction) of the frame 1. The two modules work together to enable the clamping part 41 to move in any straight line or curve within a two-dimensional plane, precisely conforming to the folding path defined by the first guide wheel 2 and the second guide wheel 3, thus preventing misalignment or wrinkles in the filter cartridge 8 due to deviations in its movement trajectory. For example, when the filter cartridge 8 needs to be folded along a "Z" shaped path, the clamping part 41 can precisely conform to the folding path defined by the first guide wheel 2 and the second guide wheel 3 through a cyclical action of "rising in the height direction → translating in the length direction → falling in the height direction → translating in the opposite direction in the length direction," preventing misalignment or wrinkles in the filter cartridge 8 due to deviations in its movement trajectory.

[0072] The clamping part 41 can firmly clamp one end of the filter cartridge 8 to be processed by a detachable fixing method such as a gripper or suction cup (e.g., pneumatic gripper or vacuum adsorption), ensuring that it does not slip or fall off during movement.

[0073] The first linear module 42 can be composed of a servo motor, a ball screw, and a guide rail slider, and is used to drive the clamping part 41 to move along the height direction (vertical direction) of the frame 1.

[0074] The second linear module 43 is similar to the first linear module 42, but has a larger load (it needs to support the weight of the first module and the clamping part 41). It is used to drive the entire first linear module 42 and the clamping part 41 to move along the length direction (horizontal direction) of the frame 1. Therefore, the guide rail and lead screw are usually larger.

[0075] Specifically, in practical applications, the traction mechanism 4 achieves complex path control through dual-axis linkage: In single-axis motion mode, when only the first linear module 42 is working, the clamping part 41 moves vertically along the guide rail to adjust the height of the filter cartridge 8 to be processed; when only the second linear module 43 is working, the clamping part 41 moves horizontally along the guide rail to adjust the horizontal position of the filter cartridge 8 to be processed. In dual-axis motion mode, by simultaneously controlling the displacement and speed of the first linear module 42 and the second linear module 43, any two-dimensional planar path can be synthesized. Based on this, combined with the positional relationship of the first guide wheel 2 and the second guide wheel 3, the control system calculates the real-time motion parameters of the first linear module 42 and the second linear module 43 through interpolation algorithms (such as linear interpolation and circular interpolation) to ensure that the clamping part 41 moves strictly along the folding path. For example, at the turning point of the Z-shaped folding path, the control system dynamically adjusts the speed ratio of the first linear module 42 and the second linear module 43 to make the filter cartridge 8 to be processed transition smoothly.

[0076] In the above embodiments, see Figure 3 As shown, the clamping part 41 includes a fixed clamping plate 411 and a movable clamping plate 412; the movable clamping plate 412 is used to move towards the fixed clamping plate 411 under the action of a cylinder or an electric push rod, so that the fixed clamping plate 411 and the movable plate cooperate to form a clamping surface to clamp the filter cylinder 8 to be processed.

[0077] In this embodiment, the movable clamping plate 412 is driven by a cylinder or an electric push rod, and the clamping force can be precisely adjusted by controlling the air source pressure or the motor stroke. Compared with manual clamping, this method can quickly fix the end of the filter cartridge 8 to be processed, improving processing efficiency, and is especially suitable for assembly line operations. At the same time, the stroke of the movable clamping plate 412 is adjustable (e.g., the electric push rod supports program-set stroke), so the same clamping part 41 can be adapted to filter cartridges of different sizes, reducing equipment replacement costs and improving versatility.

[0078] The fixed clamping plate 411 and the movable clamping plate 412 are arranged parallel to each other and opposite to each other, forming a clamping space for clamping the filter cylinder 8 to be processed.

[0079] The fixed clamp 411 is fixedly installed on the moving end of the traction mechanism 4 (such as the slider of the first linear module 42), and its position remains unchanged.

[0080] The movable clamping plate 412 and the fixed clamping plate 411 are arranged opposite to each other and can move linearly along the line connecting the two (i.e., the clamping / releasing direction).

[0081] The cylinder or electric push rod is fixed to the side of the fixed clamping plate 411 away from the movable clamping plate 412 (i.e., the back of the fixed clamping plate 411), and is placed on both sides of the fixed clamping plate 411, respectively, along with the movable clamping plate 412.

[0082] The piston rod of the cylinder or the push rod (drive end) of the electric push rod passes through the fixed clamping plate 411 (by opening a through hole or a groove) and is connected to the movable clamping plate 412 (e.g., by thread, pin or flange).

[0083] The through hole or groove on the fixed clamping plate 411 must be coaxial with the direction of movement of the drive end to ensure that the movable clamping plate 412 is not skewed when it moves.

[0084] It is understandable that when compressed air is introduced into the cylinder or the electric push rod is energized, the drive end extends or retracts along the axial direction, causing the movable clamping plate 412 to move towards the fixed clamping plate 411 (clamping action) or away (releasing action), and finally the filter cartridge 8 to be processed is fixed or released through the clamping surfaces of the two.

[0085] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, the traction mechanism 4 also includes a rotary platform 44; the rotary platform 44 is disposed between the moving end of the first linear drive module and the clamping part 41, and the rotary platform 44 is configured such that: the fixed end of the rotary platform 44 is connected to the moving end of the first linear drive module, and moves along the height direction of the frame 1 with the first linear drive module; the rotation output end of the rotary platform 44 is connected to the clamping part 41, and is used to drive the clamping part 41 to rotate around the rotation axis; wherein, the rotation axis is parallel to the axial direction of the first guide wheel 2 and the second guide wheel 3.

[0086] In this embodiment, the rotary platform 44 drives the clamping part 41 to rotate around the rotation axis (the rotation axis is parallel to the first guide wheel 2 and the second axis). While the filter cylinder 8 to be processed is translated with the first linear module 42 and the second linear module 43, its circumferential posture or axial angle can be adjusted simultaneously, so that the filter cylinder 8 to be processed naturally turns with the folding path, reducing unexpected stress and ensuring folding quality.

[0087] The rotary platform 44 is located between the moving end of the first linear drive module and the clamping part 41, serving as an intermediate connecting component between the two.

[0088] The fixed end of the rotary platform 44 (such as the outer shell of the rotary platform 44) can be connected to the moving end of the first linear drive module by means of bolts, flanges, etc., so that the rotary platform 44 can move up and down synchronously with the moving end of the first linear drive module.

[0089] The rotary output end (such as a rotary shaft or turntable) of the rotary platform 44 is connected to the clamping part 41. The clamping part 41 is used to fix one end of the filter cartridge 8 (such as a filter element) to be processed, and it needs to rotate around the rotation axis under the drive of the rotary platform 44.

[0090] The rotation axis is parallel to the axial direction of the first guide wheel 2 and the second guide wheel 3, such that the rotation plane of the clamping part 41 is perpendicular to the axial direction of the first guide wheel 2 and the second guide wheel 3. For example, when rotating about a horizontal axis, the rotation plane is a vertical plane.

[0091] Understandably, through the rotation function of the rotary platform 44, the clamping part 41 can drive the filter cylinder 8 to be processed to undergo complex three-dimensional motion (linear movement + rotation), adapting to complex processing paths (such as spiral folding, multi-angle bending, etc.). For example, when the filter cylinder 8 to be processed is folded, if it is necessary to change the folding direction or curvature, the posture of the end of the filter cylinder 8 to be processed can be adjusted by rotating the clamping part 41 to avoid material deformation or breakage caused by rigid traction.

[0092] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, the folding device also includes a feeding mechanism 5; the feeding mechanism 5 is disposed upstream of the first guide wheel 2 and the second guide wheel 3, and the feeding mechanism 5 is used to convey the filter cartridge 8 to be processed into the folding path defined by the first guide wheel 2 and the second guide wheel 3; wherein, the feeding mechanism 5 includes a first feeding roller 51, a second feeding roller 52 and a driving part 53; the first feeding roller 51 and the second feeding roller 52 are parallel to each other and arranged oppositely to form a feeding gap for clamping the filter cartridge 8 to be processed; the driving part 53 is connected to the first feeding roller 51 and / or the second feeding roller 52, and the driving part 53 is used to drive the first feeding roller 51 and the second feeding roller 52 to rotate synchronously in opposite directions, so that the filter cartridge 8 to be processed moves along the length direction of the frame 1.

[0093] The feeding mechanism 5 is located at the front end of the folding path of the filter cartridge 8 to be processed. It is used to stably transport the filter cartridge 8 to be processed along the length direction of the frame 1 to the folding path defined by the first guide wheel 2 and the second guide wheel 3, so as to provide continuous and controllable feeding for the subsequent folding process.

[0094] In the feeding mechanism 5, the first feeding roller 51 and the second feeding roller 52 are arranged parallel to each other (i.e., vertically opposite each other) to form a feeding gap, through which the filter cylinder 8 to be processed passes. The opposing pressure of the first feeding roller 51 and the second feeding roller 52 stably clamps the filter cylinder 8 to be processed within the feeding gap, preventing slippage or displacement during the conveying process.

[0095] The drive unit 53 of the feeding mechanism 5 is connected to the first feeding roller 51 and / or the second feeding roller 52. It can drive one of the feeding rollers individually or both feeding rollers simultaneously. Taking a motor as an example, the drive unit 53 drives the first feeding roller 51 and the second feeding roller 52 to rotate synchronously in opposite directions, for example, the upper roller rotates clockwise and the lower roller rotates counterclockwise. The counter-rotation of the two rollers generates friction, which pushes the filter cartridge 8 to be processed to move oriented and at a constant speed along the length direction of the frame 1 (e.g., horizontally to the left), thereby realizing feeding. It should be noted that when the drive unit 53 drives only one feeding roller to rotate, the rotating feeding roller and the non-rotating feeding roller are also considered to be rotating synchronously in opposite directions.

[0096] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, the folding device also includes a cutting mechanism 6; the cutting mechanism 6 is located downstream of the feeding mechanism 5, and is used to cut the folded filter cartridge 8 to be processed; wherein, the cutting mechanism 6 includes a fixed blade assembly 61 and a moving blade assembly 62; the fixed blade assembly 61 is located on the frame 1 and is used to form a cutting station; the moving blade assembly 62 is movably located at the cutting station, and the moving blade assembly 62 can move relative to the fixed blade assembly 61, and at least part of the movement trajectory of the moving blade assembly 62 coincides with the conveying path of the filter cartridge 8 to be processed.

[0097] In this embodiment, the fixed blade assembly 61 forms a fixed cutting station, providing a stable reference for cutting; the movable blade assembly 62 is movable and its partial motion trajectory coincides with the filter cartridge conveying path, ensuring accurate cutting position and allowing the folded filter cartridge 8 to be precisely cut to the preset size, ensuring product specification consistency. Simultaneously, the cutting mechanism 6 is located downstream of the folding path, enabling immediate cutting of the filter cartridge 8 after folding, achieving seamless connection between the folding and cutting processes, reducing manual intervention and material turnaround time, significantly improving production efficiency, and making it suitable for continuous assembly line operation.

[0098] The fixed blade assembly 61 includes a blade holder, which is located on the conveying path of the filter cartridge 8 to be processed.

[0099] The moving blade assembly 62 includes a blade that can rotate around its own axis to create a cutting motion. It can also move perpendicular to the conveying direction of the filter cartridge 8 (i.e., perpendicular to the plane of the frame 1), and generates shearing force through linear sliding in cooperation with the tool holder of the fixed blade assembly 61. When the blade moves perpendicular to the conveying direction of the filter cartridge 8, its trajectory is perpendicular to the plane of the frame 1, and it is precisely guided by a sliding structure (such as a guide rail or groove) on the tool holder. During this process, the rotating blade cuts into the clearance gap in the middle of the tool holder, forming a combined shearing action of "rotation + sliding" with the edge of the tool holder, thereby efficiently cutting off the filter cartridge 8.

[0100] Specifically, the fixed blade assembly 61 has a clearance on its tool holder that matches the blade of the moving blade assembly 62. This clearance is located in the middle of the tool holder and is perfectly aligned with the conveying path of the filter cartridge 8 to be processed, ensuring that the filter cartridge 8 can pass smoothly through the tool holder during conveying and be accurately positioned at the cutting station. During the movement of the blade of the moving blade assembly 62, its cutting edge is fully embedded in the clearance, forming a "shearing pair" with the tool holder to generate shearing force on the filter cartridge 8 to be processed, thereby achieving cutting.

[0101] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, the folding device also includes an ejection mechanism 7; the ejection mechanism 7 is used to eject the folded filter cartridge 8 from the first guide wheel 2 and the second guide wheel 3; wherein, the ejection mechanism 7 includes a pusher drive 71 and a pusher actuator 72; the pusher drive 71 is fixedly mounted on the frame 1; the pusher actuator 72 is connected to the output end of the pusher drive 71, and the pusher drive 71 is used to drive the pusher actuator 72 to move, and the movement trajectory of the pusher actuator 72 covers the folding path area between the first guide wheel 2 and the second guide wheel 3.

[0102] In this embodiment, the pusher drive 71 drives the pusher actuator 72 to move, which can automatically detach the folded filter cartridge 8 from the first guide wheel 2 and the second guide wheel 3 without manual intervention. This process is seamlessly connected with the folding process, avoiding the time loss and operational errors of manual unloading, significantly improving the automation level and production efficiency of the production line, and is especially suitable for large-scale continuous operation scenarios.

[0103] Among them, the pushing drive component 71 can be a linear motion drive device such as a cylinder or an electric push rod, which is fixedly installed on the side of the frame 1 away from the first guide wheel 2, the second guide wheel 3 and the traction mechanism 4, and its output end passes through the frame 1 and is connected to the pushing actuator 72.

[0104] Among them, the pusher actuator 72 can be a pusher plate, etc., and is connected to the output end (such as the cylinder piston rod) of the pusher drive 71 by bolts, pins, etc.

[0105] Specifically, the output end of the pusher drive 71 is parallel to the axis of the first guide wheel 2 and the second guide wheel 3. The pusher actuator 72 (such as a pusher plate) is slidably disposed in the folding path area between the first guide wheel 2 and the second guide wheel 3. Its movement trajectory is completely parallel to the axis of the guide wheels, ensuring that the direction of the push force is perpendicular to the folding path of the filter cartridge 8 to be processed, thus avoiding lateral pulling on the filter cartridge 8 to be processed during unloading. After the filter cartridge 8 to be processed is folded under the drive of the traction mechanism 4, the pusher drive 71 drives the pusher actuator 72 to gradually approach the side of the folded filter cartridge 8. Since the movement trajectory of the pusher actuator 72 completely covers the folding path area between the first guide wheel 2 and the second guide wheel 3, the pusher actuator 72 can act precisely on the filter cartridge 8 to be processed, ensuring that the push force is evenly distributed and preventing the filter cartridge 8 to be processed from deforming due to uneven force. After the pusher actuator 72 contacts the filter cartridge 8 to be processed, it separates it from the surface of the first guide wheel 2 and the second guide wheel 3 with a constant push force. Since the direction of movement of the pusher actuator 72 is parallel to the axis of the guide wheel, the filter cartridge 8 to be processed moves away from the guide wheel in a direction perpendicular to the folding path. After unloading is completed, the pusher drive 71 moves in the opposite direction, and the pusher actuator 72 returns to its original position to be in contact with the surface of the frame 1.

[0106] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0107] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A folding device, characterized in that, include: frame; At least one first guide wheel and at least one second guide wheel, wherein the first guide wheel and the second guide wheel are staggered along the height direction of the frame, and the axes of the first guide wheel and the second guide wheel have a predetermined offset in the length direction of the frame; A traction mechanism is used to clamp one end of the filter cartridge to be processed and drive the filter cartridge to be processed to move along the folding path defined by the first guide wheel and the second guide wheel.

2. The folding device of claim 1, wherein The first guide wheel and the second guide wheel are rotatably mounted on the frame via a rotating connector.

3. The folding device of claim 1, wherein The preset offset is adjustable.

4. The folding device of claim 3, wherein One of the first guide wheel and the second guide wheel is fixed in position on the frame, while the other can slide along the length of the frame and be fixed in a preset position.

5. The folding device of claim 1, wherein The traction mechanism includes: A clamping part is provided for detachably fixing one end of the filter cartridge to be processed; A first linear module, the movable end of the first linear module is connected to the clamping part, and the first linear module is used to drive the clamping part to move linearly along the height direction of the frame; The second linear module has a moving end connected to the first linear module. The second linear module is used to drive the first linear module and the clamping part to move linearly along the length direction of the frame. The first linear module cooperates with the second linear module to move the clamping part along the folding path defined by the first guide wheel and the second guide wheel.

6. The folding device of claim 5, wherein The clamping part includes: Fixed clamp; A movable clamping plate is used to move towards the fixed clamping plate under the action of a cylinder or an electric push rod, so that the fixed clamping plate and the movable clamping plate cooperate to form a clamping surface to clamp the filter cylinder to be processed.

7. The folding device of claim 5, wherein The traction mechanism also includes: A rotary platform is disposed between the moving end of the first linear module and the clamping part, and the rotary platform is configured as follows: The fixed end of the rotary platform is connected to the moving end of the first linear module, and moves along the height direction of the frame with the first linear module; The rotary output end of the rotary platform is connected to the clamping part, and is used to drive the clamping part to rotate around the rotation axis; The rotation axis is parallel to the axial direction of the first guide wheel and the second guide wheel.

8. The folding apparatus of claim 1, wherein Also includes: A feeding mechanism is provided on the upstream side of the first guide wheel and the second guide wheel, and the feeding mechanism is used to feed the filter cartridge to be processed into the folding path defined by the first guide wheel and the second guide wheel; The feeding mechanism includes: A first feeding roller and a second feeding roller, the first feeding roller and the second feeding roller are parallel to each other and arranged opposite each other, to form a feeding gap for clamping the filter cylinder to be processed; A drive unit is connected to the first feeding roller and / or the second feeding roller. The drive unit is used to drive the first feeding roller and the second feeding roller to rotate synchronously in opposite directions so that the filter cartridge to be processed moves along the length direction of the frame.

9. The folding device of claim 8, wherein, Also includes: A cutting mechanism is provided downstream of the feeding mechanism and is used to cut the folded filter cartridge to be processed. The cutting mechanism includes: A fixed blade assembly is disposed on the frame and is used to form a cutting station; A moving blade assembly is movably disposed at the cutting station. The moving blade assembly is movable relative to the fixed blade assembly, and at least a portion of the movement trajectory of the moving blade assembly coincides with the conveying path of the filter cartridge to be processed.

10. The folding apparatus of claim 1, wherein, Also includes: An ejection mechanism is used to eject the folded filter cartridge to be processed from the first guide wheel and the second guide wheel; The launching agencies include: A material pusher drive component, which is fixedly mounted on the frame; A material pusher actuator is connected to the output end of the material pusher drive. The material pusher drive is used to drive the material pusher actuator to move. The movement trajectory of the material pusher actuator covers the folding path area between the first guide wheel and the second guide wheel.

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