Production equipment for fold type cylindrical dust removal filter bag

Abstract

The invention discloses fold type cylindrical dust removal filter bag production equipment, and belongs to the technical field of filter bag production, the fold type cylindrical dust removal filter bag production equipment comprises a main body supporting assembly, the main body supporting assembly comprises a base and a rack, and the rack is fixed at the top of the base. The filter material is stably placed between the upper conveying belt and the lower conveying belt through a clamping structure of the upper conveying belt and the lower conveying belt, meanwhile, the preset wrinkle form is synchronously extruded in the continuous conveying process of the filter material through mutual cooperation of the upper prisms and the lower prisms, a wrinkle forming station does not need to be independently arranged, and synchronous operation of forming after conveying is achieved; in the filter material conveying process, the multiple sets of fixing belts are welded to the filter material through the ultrasonic welding head, the multiple sets of fixing belts can move along with the filter material to achieve continuous and synchronous conveying, it is accurately guaranteed that the fixing belts are attached to the filter material in the direction perpendicular to wrinkles, the production process is simplified, the problem of fixing belt dislocation caused by multi-system cooperation deviation is solved, and the product quality is improved. Conveying operation is more convenient, and synchronism and stability are remarkably improved.

Description

Technical Field

[0001] This invention relates to a filter bag production equipment, and more particularly to a pleated cylindrical dust collector filter bag production equipment, belonging to the field of filter bag production technology. Background Technology

[0002] Currently, in the production process of pleated cylindrical dust collector filter bags, the assembly, pleating, and ultrasonic welding of nonwoven fabric fixing straps are usually achieved using a "step-by-step intermittent" process. Specifically, the equipment needs to be equipped with an independent fixing strap conveying control system. This system operates independently from the pleating and ultrasonic welding mechanisms. First, the pleating mechanism processes the filter material into a preset pleated shape. Then, the independent control system drives the conveyor rollers to intermittently convey a fixed length of nonwoven fabric fixing strap, pulling it to the surface of the filter material, perpendicular to the pleat direction. After the fixing strap is positioned, the ultrasonic welding mechanism starts to weld and fix the fixing strap to the filter material. After welding is completed, the ultrasonic welding mechanism resets, and the fixing strap conveying system starts again to enter the next section of fixing strap conveying and positioning process. This cycle repeats to complete the entire assembly of the nonwoven fabric fixing strap and filter material.

[0003] The dual conveyor system for the fixing belt and filter media not only increases the structural complexity of the equipment but also increases the production and operating costs. In addition, it requires coordination with the welding system. Delays or misalignments between multiple systems can lead to positioning deviations of the fixing belt, affecting product quality. Furthermore, the intermittent operation mode with long time intervals increases the total time required for pleating and welding a single filter bag, significantly extending the production cycle.

[0004] To address these issues, a pleated cylindrical dust collector filter bag production equipment was designed. Summary of the Invention

[0005] The main objective of this invention is to provide a production equipment for pleated cylindrical dust collector filter bags. Through a clamping structure between an upper and lower conveyor belt, the filter material is stably placed between them. Simultaneously, utilizing the cooperation of the upper and lower prisms, a preset pleated shape is synchronously extruded during the continuous conveying of the filter material. This eliminates the need for a separate pleating forming station, achieving synchronous operation of forming during conveying. Furthermore, during filter material conveying, multiple sets of fixing belts are welded to the filter material using an ultrasonic welding head. These fixing belts move with the filter material, ensuring continuous synchronous conveying and precisely ensuring that the fixing belts are perpendicular to the pleats and adhere to the filter material. This simplifies the production process and avoids the problem of fixing belt misalignment caused by multi-system coordination deviations. The conveying operation is more convenient, and the synchronization and stability are significantly improved. By vertically sliding the ultrasonic welding head at the bottom of the column and cooperating with a reciprocating lifting mechanism composed of a rectangular frame plate and an eccentric wheel, mechanical linkage control is achieved. The eccentric wheel is fixed on the guide shaft and rotates synchronously with the conveying of the filter material and fixing belts, thereby driving the rectangular frame plate to move the ultrasonic welding head. The acoustic welding head moves automatically up and down, eliminating the need for a separate welding drive control system. This allows for precise welding of the fixing tape and filter media. The design replaces complex electrical control with mechanical linkage, simplifying the control logic, simplifying operation, and reducing the use of high-cost electrical components. This lowers hardware costs from the manufacturing stage and reduces maintenance requirements for the electrical control system, further reducing operating costs. The cutting assembly, consisting of cylinders, pull rods, vertical rods, a cutting motor, a cutting disc, a screw, a translation motor, and a horizontal rod, works in conjunction with the front and rear limit wheels at the bottom of the column. This allows for the cutting of the fixing tape of a single filter bag with only one pause after the filter media has been pleated and the fixing tape welded. This significantly reduces the number of pauses and waiting time during production, shortening the overall production cycle of a single filter bag and effectively increasing the overall production rate. Simultaneously, the front and rear limit wheels limit the position of the filter media and fixing tape, ensuring stable material position during cutting and preventing cutting deviations from affecting product accuracy.

[0006] The objective of this invention can be achieved by adopting the following technical solution: A production equipment for pleated cylindrical dust collector filter bags includes: The main support assembly includes a base and a frame, with the frame fixed to the top of the base; A pleating forming conveyor assembly includes a lower conveyor unit and an upper conveyor unit. The lower conveyor unit is located on one side of the top of the base and includes a lower bracket fixed to the base, lower drive shafts rotatably mounted on both sides of the lower bracket, lower conveyor rollers fixed on the lower drive shafts, and a lower conveyor belt sleeved between the two sets of lower conveyor rollers. Lower prisms are evenly distributed on the outer side of the lower conveyor belt along the length direction of the lower conveyor rollers. The upper conveyor unit is located at the bottom of the frame and directly above the lower bracket. It includes an upper bracket fixed to the frame, upper drive shafts rotatably mounted on both sides of the upper bracket, upper conveyor rollers fixed at both ends of the upper drive shafts, and an upper conveyor belt sleeved between the upper conveyor rollers at the same ends of the two sets of upper drive shafts. Upper prisms adapted to the lower prisms are evenly distributed on the outer side of the upper conveyor belt. A guide shaft is rotatably mounted at the middle position of the bottom of the upper bracket, and guide rollers are installed at both ends of the guide shaft. The linkage welding assembly includes a column, an ultrasonic welding head, and a reciprocating lifting mechanism. The column is vertically fixed to the bottom of the frame and located at the end of the upper conveyor belt. The ultrasonic welding head is vertically slidably mounted on the bottom end of the column. The reciprocating lifting mechanism is mounted on a guide shaft and is used to drive the ultrasonic welding head to rotate and link with the guide shaft. The feeding assembly is located between the base and the end of the frame away from the lower support, and is used to horizontally release the filter media and multiple sets of fixing belts; The cutting assembly is located at the bottom of the frame and directly above the fixing belt, and is used to cut the fixing belt to a fixed length. The driving component, which is a drive motor, is located at the end of the lower support. Its output shaft is connected to the lower drive shaft to drive the lower conveying unit to operate.

[0007] Preferably, the feeding assembly includes a feeding rack, a filter media roll, a feeding rack, and a fixing reel. The feeding rack is fixed to the top of the base, the filter media roll is installed on the top of the feeding rack, the feeding rack is evenly fixed to the bottom of the frame along the width of the frame, and the fixing reels are installed one-to-one on the feeding rack. The fixing tape released from the fixing reel passes horizontally from directly below the ultrasonic welding head.

[0008] Preferably, the bottom end of the column is provided with a sliding groove, through which the ultrasonic welding head is vertically slidably installed on the column.

[0009] Preferably, two sets of front limit wheels are symmetrically and rotatably installed at the bottom of the column away from the ultrasonic welding head, with the two sets of front limit wheels distributed vertically. A rear limit wheel is rotatably installed at the bottom of the column near the ultrasonic welding head. The fixing belt passes between the two sets of front limit wheels in sequence and fits against the bottom of the rear limit wheel.

[0010] Preferably, the reciprocating lifting mechanism includes a rectangular frame plate and an eccentric wheel. The rectangular frame plate is fixed to the top of the ultrasonic welding head, the guide shaft passes horizontally through the inside of the rectangular frame plate, and the eccentric wheel is evenly fixed on the guide shaft and located inside the rectangular frame plate. When the guide shaft rotates, it pushes the rectangular frame plate through the eccentric wheel to drive the ultrasonic welding head to rise and fall.

[0011] Preferably, the cutting assembly includes a cylinder, a pull rod, a vertical rod, a cutting motor, a cutting disc, and a translation assembly. The cylinders are evenly distributed at the bottom of the frame along the width direction of the frame. The pull rods are installed at the bottom of the cylinders. The vertical rods are vertically fixed at the bottom of the frame and located directly above the fixing belt. The cutting motor is installed at the bottom of the vertical rod. The cutting disc is installed at the output end of the cutting motor. The translation assembly is located at the top of the cylinders and is used to drive multiple sets of cylinders to move synchronously along the width direction of the frame.

[0012] Preferably, the translation component includes a screw, a translation motor, and a crossbar. The crossbar is slidably disposed at the bottom of the frame along the width direction of the frame. The tops of multiple sets of cylinders are fixedly connected to the crossbar. The translation motor is installed at one end of the bottom of the frame. The screw is installed at the output end of the translation motor. The screw passes horizontally through the crossbar and is threadedly connected to the crossbar. The translation motor drives the screw to rotate so as to move the crossbar in translation.

[0013] Preferably, the cutting disc is a circular blade, and the axial direction of the cutting disc is perpendicular to the conveying direction of the fixed belt.

[0014] Preferably, the lower prism has an isosceles trapezoidal cross-section, and the width of the top surface of the lower prism is smaller than the width of the bottom surface. The cross-section of the upper prism is mirror-symmetrical with the cross-section of the lower prism. The lower prism and the upper prism have the same height, and the edges of both are rounded.

[0015] Preferably, both the lower and upper prisms are detachably fixed to the surfaces of the lower and upper conveyor belts by countersunk bolts, and both the lower and upper conveyor belts have threaded holes that are compatible with the countersunk bolts.

[0016] The beneficial effects of this invention are as follows: This invention provides a production equipment for pleated cylindrical dust collector filter bags. Through the clamping structure of the upper and lower conveyor belts, the filter material is stably placed between them. At the same time, by utilizing the cooperation of the upper and lower prisms, the preset pleated shape is extruded synchronously during the continuous conveying of the filter material. There is no need to set up a separate pleating forming station, realizing synchronous operation of conveying and forming simultaneously. In addition, during the conveying of the filter material, multiple sets of fixing belts are welded to the filter material by ultrasonic welding heads. Multiple sets of fixing belts can move with the filter material to achieve continuous synchronous conveying and accurately ensure that the fixing belts are perpendicular to the pleats and fit the filter material. This not only simplifies the production process but also avoids the problem of fixing belt misalignment caused by multi-system coordination deviation. The conveying operation is more convenient, and the synchronization and stability are significantly improved. By vertically sliding the ultrasonic welding head at the bottom of the column and cooperating with the reciprocating lifting mechanism composed of a rectangular frame plate and an eccentric wheel, mechanical linkage control is achieved. The eccentric wheel is fixed on the guide shaft and can rotate synchronously with the conveying of the filter material and the fixing belt, thereby driving the rectangular frame plate to move the ultrasonic welding head up and down automatically. Without the need for an additional independent welding drive control system, the precise welding operation of the fixing belt and the filter material can be completed. This design replaces complex electrical control with mechanical linkage, which not only simplifies the control logic and makes operation convenient, but also reduces the use of high-cost electrical control components, thereby reducing hardware costs from the equipment manufacturing stage. At the same time, it reduces the maintenance needs of the electrical control system in the later stage, further reducing the cost investment during the use of the equipment. The cutting assembly, consisting of a cylinder, pull rod, vertical rod, cutting motor, cutting disc, screw, translation motor, and horizontal rod, works in conjunction with the front and rear limit wheels at the bottom of the column. This allows for the cutting of the fixing belt of a single filter bag after the filter material has been pleated and the fixing belt has been welded, requiring only one pause. This significantly reduces the number of pauses and waiting time during production, substantially shortens the total production cycle of a single filter bag, and effectively improves the overall production rate of filter bags. At the same time, the front and rear limit wheels can limit the filter material and fixing belt, ensuring stable material position during cutting and preventing cutting deviations from affecting product accuracy. Attached Figure Description

[0017] Figure 1 This is a front view of a preferred embodiment of a pleated cylindrical dust collector filter bag production equipment of the present invention; Figure 2 This is an exploded view of the bottom of the frame of a preferred embodiment of a pleated cylindrical dust filter bag production equipment of the present invention; Figure 3 This is a partial structural diagram of the top of the base in a preferred embodiment of a pleated cylindrical dust collector filter bag production equipment of the present invention; Figure 4 This is a front sectional view of a preferred embodiment of a pleated cylindrical dust collector filter bag production equipment of the present invention; Figure 5 This is a preferred embodiment of a pleated cylindrical dust collector filter bag production equipment of the present invention. Figure 1 Enlarged view of point A in the middle; Figure 6 This is a diagram of a cutting component in a preferred embodiment of a pleated cylindrical dust collector filter bag production equipment of the present invention; Figure 7 This is a column diagram of a preferred embodiment of a pleated cylindrical dust collector filter bag production equipment of the present invention; Figure 8 This is a diagram showing the external structure of the guide shaft in a preferred embodiment of a pleated cylindrical dust collector filter bag production device of the present invention. Figure 9 This is a diagram showing the shape of the crossbar in a preferred embodiment of a pleated cylindrical dust filter bag production equipment of the present invention.

[0018] In the diagram: 1. Base; 2. Frame; 3. Lower support; 4. Lower drive shaft; 5. Lower conveyor roller; 6. Lower conveyor belt; 7. Lower prism; 8. Upper support; 9. Upper drive shaft; 10. Upper conveyor roller; 11. Upper conveyor belt; 12. Upper prism; 13. Guide shaft; 14. Guide roller; 15. Column; 1501. Slide groove; 1502. Front limit wheel; 1503. Rear limit wheel; 16. Ultrasonic welding head; 17. Reciprocating lifting mechanism; 1701. Rectangular frame plate; 1702. Eccentric wheel; 18. Feeding assembly; 1801. Unloading rack; 1802. Filter media roll; 1803. Loading rack; 1804. Fixed reel; 19. Drive motor; 20. Cutting assembly; 2001. Cylinder; 2002. Tie rod; 2003. Vertical rod; 2004. Cutting motor; 2005. Cutting disc; 2006. Screw; 2007. Translation motor; 2008. Horizontal rod. Detailed Implementation

[0019] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto. Example

[0020] like Figures 1-9 As shown, this embodiment provides a production equipment for pleated cylindrical dust collector filter bags, including: The main support assembly includes a base 1 and a frame 2, with the frame 2 fixed to the top of the base 1; The pleating forming conveyor assembly includes a lower conveyor unit and an upper conveyor unit. The lower conveyor unit is located on one side of the top of the base 1 and includes a lower bracket 3 fixed to the base 1, a lower drive shaft 4 rotatably mounted on both sides of the lower bracket 3, a lower conveyor roller 5 fixed on the lower drive shaft 4, and a lower conveyor belt 6 sleeved between the two sets of lower conveyor rollers 5. Lower prisms 7 are evenly arranged on the outer side of the lower conveyor belt 6 along the length direction of the lower conveyor rollers 5. The upper conveyor unit is located at the bottom of the frame 2 and directly above the lower bracket 3 and includes an upper bracket 8 fixed to the frame 2, an upper drive shaft 9 rotatably mounted on both sides of the upper bracket 8, upper conveyor rollers 10 fixed at both ends of the upper drive shaft 9, and an upper conveyor belt 11 sleeved between the upper conveyor rollers 10 at the same end of the two sets of upper drive shafts 9. Upper prisms 12 adapted to the lower prisms 7 are evenly arranged on the outer side of the upper conveyor belt 11. A guide shaft 13 is rotatably mounted at the middle position of the bottom of the upper bracket 8, and guide rollers 14 are installed at both ends of the guide shaft 13. The linkage welding assembly includes a column 15, an ultrasonic welding head 16, and a reciprocating lifting mechanism 17. The column 15 is vertically fixed to the bottom of the frame 2 and located at the end of the upper conveyor belt 11. The ultrasonic welding head 16 is vertically slidably disposed at the bottom end of the column 15. The reciprocating lifting mechanism 17 is disposed on the guide shaft 13 and is used to drive the ultrasonic welding head 16 to rotate and link with the guide shaft 13. Feeding assembly 18 is located between the base 1 and the end of the frame 2 away from the lower support 3, and is used to horizontally release the filter material and multiple sets of fixing belts; Cutting assembly 20 is located at the bottom of frame 2 and directly above the fixing belt, and is used to cut the fixing belt to a fixed length. The driving component is a drive motor 19, which is located at the end of the lower support 3. Its output shaft is connected to the lower drive shaft 4 to drive the lower conveying unit to operate.

[0021] Overall working principle: Start the drive motor 19, the output shaft of the drive motor 19 drives the lower drive shaft 4 to rotate, the lower drive shaft 4 drives the lower conveyor roller 5 to rotate synchronously, the lower conveyor roller 5 drives the lower conveyor belt 6 mounted on it to rotate through friction, the lower conveyor belt 6 further links the upper conveyor belt 11 to rotate synchronously, providing conveying power for the entire production process.

[0022] The feeding assembly 18 starts synchronously and continuously releases the filter material. The filter material is smoothly transported between the lower conveyor belt 6 and the upper conveyor belt 11. At the same time, the fixing belt is released. The fixing belt is located directly below the ultrasonic welding head 16 and forms an upper and lower corresponding relationship with the filter material.

[0023] After the filter material enters between the lower conveyor belt 6 and the upper conveyor belt 11, the lower prism 7 on the outer side of the lower conveyor belt 6 and the upper prism 12 on the outer side of the upper conveyor belt 11 cooperate with each other. During the continuous conveying of the filter material by the conveyor belt, the filter material is simultaneously squeezed. Since the lower prism 7 and the upper prism 12 are evenly distributed and structurally compatible, the filter material is squeezed out with preset uniform pleats, realizing the integrated operation of conveying and forming at the same time, without the need to set up a separate pleat forming station.

[0024] While the filter material is being pleated, the guide shaft 13 at the bottom of the upper support 8 rotates synchronously with the conveyor belt. In conjunction with the linkage of the reciprocating lifting mechanism 17, the ultrasonic welding head 16 moves up and down. When the ultrasonic welding head 16 descends, it contacts the fixing belt and filter material below and uses ultrasonic energy to weld the fixing belt to the pleats of the filter material. After welding is completed, the ultrasonic welding head 16 rotates and rises with the eccentric wheel 1702, realizing continuous welding synchronous with the conveyor.

[0025] After the filter material of the required length for a single filter bag is pleated and welded with the fixing belt, the drive motor 19 temporarily stops, the cutting component 20 starts, and the fixing belt is cut after leaving a certain length. After the cutting is completed, the cutting component 20 resets, the drive motor 19 starts again, and the production cycle of the next filter bag begins, ultimately achieving continuous and efficient production of pleated cylindrical dust collector filter bags. Example

[0026] The solution in Example 1 will be further described below with reference to its specific working method. In this embodiment, the feeding assembly 18 includes a feeding rack 1801, a filter media roll 1802, a feeding rack 1803, and a fixing reel 1804. The feeding rack 1801 is fixed to the top of the base 1, the filter media roll 1802 is installed on the top of the feeding rack 1801, the feeding rack 1803 is evenly fixed to the bottom of the frame 2 along the width direction of the frame 2, and the fixing reels 1804 are installed one-to-one on the feeding rack 1803. The fixing tape released from the fixing reel 1804 passes horizontally from directly below the ultrasonic welding head 16.

[0027] Local working principle: When the lower conveyor belt 6 and the upper conveyor belt 11 of the pleating forming conveyor assembly are running, the conveyor belts generate a horizontal traction force on the filter material. The filter material roll 1802 continuously releases the filter material under the action of the traction force, ensuring that the filter material is conveyed at a stable speed between the lower conveyor belt 6 and the upper conveyor belt 11, in preparation for subsequent pleating forming. During the filter media conveying process, the fixing belt is continuously released from the fixing belt reel 1804 under the traction of the filter media welding, and the fixing belt passes horizontally directly below the ultrasonic welding head 16 to ensure the vertical correspondence between the fixing belt and the filter media, laying the positional foundation for subsequent precise welding.

[0028] In this embodiment, a groove 1501 is provided at the bottom of the column 15, and the ultrasonic welding head 16 is vertically slidably installed on the column 15 through the groove 1501.

[0029] Local working principle: The opening of the chute 1501 only allows the ultrasonic welding head 16 to slide in the vertical direction, avoiding horizontal deviation of the ultrasonic welding head 16 during the welding process, ensuring that the ultrasonic welding head 16 can accurately align with the contact point between the fixing strip and the filter material each time it descends, thus improving the welding position accuracy.

[0030] In this embodiment, two sets of front limiting wheels 1502 are symmetrically and rotatably installed at the bottom of the column 15 away from the ultrasonic welding head 16. The two sets of front limiting wheels 1502 are distributed vertically. A rear limiting wheel 1503 is rotatably installed at the bottom of the column 15 near the ultrasonic welding head 16. The fixing belt passes between the two sets of front limiting wheels 1502 in sequence and fits against the bottom of the rear limiting wheel 1503.

[0031] Local working principle: The front limit wheel 1502 initially clamps and limits the fixed belt by rotating itself, preventing the fixed belt from shifting left or right during the conveying process and correcting the initial conveying direction of the fixed belt. The rear limit wheel 1503 can not only squeeze the fixed belt by rotating and correct the position of the fixed belt again, but also avoid wear between the fixed belt and the ultrasonic welding head 16 when the fixed belt is pulled up.

[0032] In this embodiment, the reciprocating lifting mechanism 17 includes a rectangular frame plate 1701 and an eccentric wheel 1702. The rectangular frame plate 1701 is fixed to the top of the ultrasonic welding head 16. The guide shaft 13 passes horizontally through the interior of the rectangular frame plate 1701. The eccentric wheel 1702 is evenly fixed on the guide shaft 13 and is located inside the rectangular frame plate 1701. When the guide shaft 13 rotates, the eccentric wheel 1702 pushes the rectangular frame plate 1701 to drive the ultrasonic welding head 16 to rise and fall.

[0033] Local working principle: When the filter material and the fixed belt are conveyed synchronously, the guide shaft 13 rotates synchronously with the conveyor belt. The guide shaft 13 drives the eccentric wheel 1702 to rotate synchronously. During the rotation, the eccentric structure of the eccentric wheel 1702 continuously presses the upper and lower inner walls of the rectangular frame plate 1701. When the long radius end of the eccentric wheel 1702 presses the upper inner wall of the rectangular frame plate 1701, it pushes the rectangular frame plate 1701 to move downward, thereby driving the ultrasonic welding head 16 to descend along the slide 1501 to realize the welding action. When the short radius end of the eccentric wheel 1702 turns to the upper inner wall of the rectangular frame plate 1701, the rectangular frame plate 1701 moves upward, driving the ultrasonic welding head 16 to rise and reset. Through the continuous rotation of the eccentric wheel 1702, the ultrasonic welding head 16 is automatically raised and lowered synchronously with the filter material and the fixed belt, without the need for additional independent drive components.

[0034] In this embodiment, the cutting assembly 20 includes a cylinder 2001, a pull rod 2002, a vertical rod 2003, a cutting motor 2004, a cutting disc 2005, and a translation assembly. The cylinder 2001 is evenly distributed at the bottom of the frame 2 along the width direction. The pull rod 2002 is installed at the bottom of the cylinder 2001. The vertical rod 2003 is vertically fixed at the bottom of the frame 2 and located directly above the fixing belt. The cutting motor 2004 is installed at the bottom of the vertical rod 2003. The cutting disc 2005 is installed at the output end of the cutting motor 2004. The translation assembly is located at the top of the cylinder 2001 and is used to drive multiple sets of cylinders 2001 to move synchronously along the width direction of the frame 2.

[0035] Partial working principle: After the filter material of the required length for a single filter bag is pleated and welded to the fixing belt, the drive motor 19 is temporarily stopped, the cutting component 20 is started, and the translation component drives the crossbar 2008 to slide along the width of the frame 2. The crossbar 2008 drives multiple sets of cylinders 2001 to move synchronously, moving the pull rod 2002 to the side of the fixing belt. At the same time, the output shaft of the cylinder 2001 pushes the pull rod 2002 down to the bottom of the fixing belt. Then, the translation component moves the pull rod 2002 to the bottom of the fixing belt. Then, the cylinder 2001 is started to pull the fixing belt up. At the same time as the fixing belt is pulled up, the cutting motor 2004 is started and drives the cutting disc 2005 to rotate at high speed. When the pulled-up fixing belt contacts the cutting disc 2005, it is cut. At the same time, a certain length of the fixing belt is reserved for subsequent sewing operations.

[0036] In this embodiment, the translation component includes a screw 2006, a translation motor 2007, and a crossbar 2008. The crossbar 2008 is slidably disposed at the bottom of the frame 2 along the width direction of the frame 2. The top ends of multiple sets of cylinders 2001 are fixedly connected to the crossbar 2008. The translation motor 2007 is installed at one end of the bottom of the frame 2. The screw 2006 is installed at the output end of the translation motor 2007. The screw 2006 passes horizontally through the crossbar 2008 and is threadedly connected to the crossbar 2008. The translation motor 2007 drives the screw 2006 to rotate so as to drive the crossbar 2008 to translate.

[0037] Local working principle: When the cylinder 2001 needs to move, the translation motor 2007 starts, and the output shaft drives the screw 2006 to rotate clockwise or counterclockwise. Since the screw 2006 is threadedly connected to the crossbar 2008, and the crossbar 2008 is restricted by the frame 2 to slide only in the width direction, the rotational motion of the screw 2006 is converted into the horizontal translational motion of the crossbar 2008. The crossbar 2008 drives multiple sets of cylinders 2001 to move synchronously, ensuring that multiple sets of cutting discs 2005 cut multiple fixed strips at the same time, ensuring that the cutting position and cutting length of all fixed strips are consistent, and improving the cutting synchronization and product consistency.

[0038] In this embodiment, the cutting disc 2005 is a circular blade, and the axial direction of the cutting disc 2005 is perpendicular to the conveying direction of the fixed belt.

[0039] Local working principle: The blade can cut into the fixing band with minimal resistance, reducing burrs, tears and other problems at the cut point of the fixing band, and ensuring a smooth cut surface of the fixing band.

[0040] In this embodiment, the cross-section of the lower prism 7 is an isosceles trapezoid, and the width of the top surface of the lower prism 7 is smaller than the width of the bottom surface. The cross-section of the upper prism 12 is mirror-symmetrical to the cross-section of the lower prism 7. The lower prism 7 and the upper prism 12 have the same height, and the edges of both are rounded.

[0041] Local working principle: The lower prism 7 presses upward from below the filter media, while the upper prism 12 presses downward from above. The trapezoidal structures of the two form a complementary compression space, causing the filter media to form uniform folds at the compression point. The depth and spacing of the folds are determined by the size and distribution density of the lower prism 7 and the upper prism 12, ensuring that the fold shape meets the preset requirements. In addition, the edges of the lower prism 7 and the upper prism 12 are rounded to prevent sharp edges from scratching the surface of the filter media or damaging the structure of the filter media during the compression process, thus protecting the integrity of the filter media and ensuring that the filtration performance of the filter bag is not affected.

[0042] In this embodiment, both the lower prism 7 and the upper prism 12 are detachably fixed to the surfaces of the lower conveyor belt 6 and the upper conveyor belt 11 by countersunk bolts. The surfaces of the lower conveyor belt 6 and the upper conveyor belt 11 are provided with threaded holes that are compatible with the countersunk bolts.

[0043] Local working principle: This structure allows for the easy replacement of lower prism 7 and upper prism 12 with different sizes and distribution densities by disassembling the countersunk bolts according to the pleat requirements of filter bags of different specifications, thereby improving the versatility of the equipment. Example

[0044] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods. Start the drive motor 19, the output shaft of the drive motor 19 drives the lower drive shaft 4 to rotate, the lower drive shaft 4 drives the lower conveyor roller 5 to rotate synchronously, the lower conveyor roller 5 drives the lower conveyor belt 6 mounted on it to rotate through friction, the lower conveyor belt 6 further links the upper conveyor belt 11 to rotate synchronously, providing conveying power for the entire production process.

[0045] The feeding assembly 18 starts synchronously. Under the traction of the conveyor belt, the filter media roll 1802 at the top of the unloading rack 1801 continuously releases the filter media. The filter media is smoothly transported between the lower conveyor belt 6 and the upper conveyor belt 11. At the same time, the fixed belt reel 1804 on the loading rack 1803 releases the fixed belt under the indirect traction of the filter media transport. The fixed belt passes through the front limit wheel 1502 and the bottom of the rear limit wheel 1503 at the bottom of the column 15 in sequence, and finally is precisely positioned directly below the ultrasonic welding head 16, forming an upper and lower corresponding relationship with the filter media.

[0046] After the filter material enters between the lower conveyor belt 6 and the upper conveyor belt 11, the lower prism 7 on the outer side of the lower conveyor belt 6 and the upper prism 12 on the outer side of the upper conveyor belt 11 cooperate with each other. During the continuous conveying of the filter material by the conveyor belt, the filter material is simultaneously squeezed. Since the lower prism 7 and the upper prism 12 are evenly distributed and structurally compatible, the filter material is squeezed out with preset uniform pleats, realizing the integrated operation of conveying and forming at the same time, without the need to set up a separate pleat forming station.

[0047] While the filter material is being pleated, the guide shaft 13 at the bottom of the upper support 8 rotates synchronously with the conveyor belt. The eccentric wheel 1702 on the guide shaft 13 rotates with the guide shaft 13, continuously squeezing the inner wall of the rectangular frame plate 1701. Since the rectangular frame plate 1701 is fixed to the top of the ultrasonic welding head 16, and the ultrasonic welding head 16 is restricted by the bottom slide groove 1501 of the column 15 to slide vertically, the rotational force of the eccentric wheel 1702 is converted into the vertical lifting and lowering motion of the rectangular frame plate 1701, which in turn drives the ultrasonic welding head 16 to move up and down. When the ultrasonic welding head 16 descends, it contacts the fixing belt and filter material below, and uses ultrasonic energy to weld the fixing belt to the pleats of the filter material. After welding is completed, the ultrasonic welding head 16 rotates and rises with the eccentric wheel 1702, realizing continuous welding synchronously with the conveyor belt.

[0048] After the filter media of the required length for a single filter bag is pleated and welded to the fixing belt, the drive motor 19 temporarily stops, the cutting assembly 20 starts, and the output shaft of the translation motor 2007 drives the screw 2006 to rotate. The screw 2006 drives the crossbar 2008 to slide along the width of the frame 2 through threaded transmission. The crossbar 2008 drives multiple sets of cylinders 2001 to move synchronously, moving the pull rod 2002 to the side of the fixing belt. At the same time, the output shaft of the cylinder 2001 pushes the pull rod 2002 downward to below the fixing belt, and then the translation motor 2007... 007 moves the pull rod 2002 to the bottom of the fixing belt, then pulls the fixing belt up. At the same time as the fixing belt is pulled up, the cutting motor 2004 starts and drives the cutting disc 2005 to rotate at high speed. When the pulled fixing belt comes into contact with the cutting disc 2005, it is cut off. At the same time, a certain length of the fixing belt is reserved for subsequent sewing operations. After the cutting is completed, the cylinder 2001 and the translation component are reset, and the drive motor 19 starts again to enter the production cycle of the next filter bag, ultimately realizing the continuous and efficient production of pleated cylindrical dust collector filter bags.

[0049] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. An apparatus for producing a pleated cylindrical dust filtration bag, characterized by comprising: The utility model relates to a filter material automatic production equipment, including: The main body support subassembly includes the base (1) and the frame (2), and the frame (2) is fixed on the top of base (1); The pleat forming conveying subassembly includes the lower conveying unit and the upper conveying unit, and the lower conveying unit is arranged on the top of base (1) one side, including the lower support (3) fixed on the base (1), the lower drive shaft (4) rotationally installed on both sides of lower support (3), the lower conveying roller (5) fixed on the lower drive shaft (4), the lower conveying belt (6) is sleeved between two groups of lower conveying roller (5), and the outer side of lower conveying belt (6) is evenly provided with lower prism (7) along the length direction of lower conveying roller (5), and the upper conveying unit is arranged on the bottom of frame (2) and is located directly above lower support (3), including the upper support (8) fixed on the frame (2), the upper drive shaft (9) rotationally installed on both sides of upper support (8), the upper conveying roller (10) fixed on both ends of upper drive shaft (9), the upper conveying belt (11) is sleeved between the upper conveying roller (10) of both ends of two groups of upper drive shaft (9), and the outer side of upper conveying belt (11) is evenly provided with upper prism (12) matched with lower prism (7), and the upper support (8) bottom middle position rotationally installs the guide shaft (13), and both ends of guide shaft (13) are all installed with guide roller (14); The linkage welding subassembly includes the stand (15), ultrasonic welding head (16) and reciprocating lifting mechanism (17), and the stand (15) is vertically fixed on the bottom of frame (2) and is located at the end of upper conveying belt (11), the ultrasonic welding head (16) is vertically slidably arranged on the bottom end of stand (15), and the reciprocating lifting mechanism (17) is arranged on the guide shaft (13) and is used to drive the rotary linkage of ultrasonic welding head (16) and guide shaft (13); Feeding assembly (18) is arranged between the base (1) and the frame (2) away from the lower support (3) one end, for releasing filter material and multiple groups of fixed belt horizontally; Cutting assembly (20) is arranged on the bottom of frame (2) and is located directly above fixed belt, for fixed length cutting of fixed belt; The driving part is drive motor (19), is arranged on the end of lower support (3), and the output shaft is connected with lower drive shaft (4) to drive lower conveying unit to operate.

2. The apparatus for producing a pleated cylindrical dust filtration bag according to claim 1, characterized in that: Feeding assembly (18) includes the blanking frame (1801), filter material roll (1802), the upper feeding frame (1803) and the fixed belt disc (1804), and the blanking frame (1801) is fixed on the top of base (1), the filter material roll (1802) is installed on the top of blanking frame (1801), the upper feeding frame (1803) is evenly fixed on the bottom of frame (2) along the width direction of frame (2), and the fixed belt disc (1804) is installed on the upper feeding frame (1803) one by one, and the fixed belt released from ultrasonic welding head (16) passes through horizontally directly below ultrasonic welding head (16).

3. The apparatus for producing a pleated cylindrical dust filtration bag according to claim 1, wherein: The bottom end of stand (15) is provided with a sliding groove (1501), and the ultrasonic welding head (16) is vertically slidably installed on the stand (15) through the sliding groove (1501).

4. The apparatus for producing a pleated cylindrical dust filtration bag according to claim 1, wherein: Two groups of front limiting wheels (1502) are symmetrically and rotatably installed at the bottom of the stand (15) away from the ultrasonic welding head (16), the two groups of front limiting wheels (1502) are distributed in an up-down manner, a rear limiting wheel (1503) is rotatably installed at the bottom of the stand (15) close to the ultrasonic welding head (16), and the fixing belt is sequentially threaded between the two groups of front limiting wheels (1502) and abuts against the bottom of the rear limiting wheel (1503).

5. The apparatus for producing a pleated cylindrical dust filtration bag according to claim 1, wherein: The reciprocating lifting mechanism (17) comprises a rectangular frame plate (1701) and an eccentric wheel (1702), the rectangular frame plate (1701) is fixed to the top end of the ultrasonic welding head (16), the guide shaft (13) horizontally penetrates the inside of the rectangular frame plate (1701), the eccentric wheels (1702) are uniformly fixed to the guide shaft (13), and the eccentric wheels (1702) are located in the inside of the rectangular frame plate (1701), when the guide shaft (13) rotates, the rectangular frame plate (1701) is driven to lift the ultrasonic welding head (16) through the eccentric wheels (1702).

6. The apparatus for producing a pleated cylindrical dust filtration bag according to claim 1, wherein: The cutting assembly (20) comprises a cylinder (2001), a pull rod (2002), a vertical rod (2003), a cutting motor (2004), a cutting disc (2005) and a translation assembly, the cylinders (2001) are evenly arranged on the bottom of the rack (2) along the width direction of the rack (2), the pull rod (2002) is installed at the bottom of the cylinder (2001), the vertical rod (2003) is vertically fixed to the bottom of the rack (2) and located directly above the fixing belt, the cutting motor (2004) is installed at the bottom of the vertical rod (2003), the cutting disc (2005) is installed at the output end of the cutting motor (2004), and the translation assembly is arranged at the top of the cylinder (2001) and used to drive the plurality of cylinders (2001) to move synchronously along the width direction of the rack (2).

7. The apparatus according to claim 6, wherein: The translation assembly comprises a screw rod (2006), a translation motor (2007) and a cross rod (2008), the cross rod (2008) is slidably arranged at the bottom of the rack (2) along the width direction of the rack (2), the top ends of the plurality of cylinders (2001) are fixedly connected with the cross rod (2008), the translation motor (2007) is installed at one end of the bottom of the rack (2), the screw rod (2006) is installed at the output end of the translation motor (2007), the screw rod (2006) horizontally penetrates the cross rod (2008) and is threadedly connected with the cross rod (2008), and the translation motor (2007) drives the screw rod (2006) to rotate to drive the cross rod (2008) to translate.

8. The apparatus for producing a pleated cylindrical dust filtration bag according to claim 6, wherein: The cutting disc (2005) is a circular blade, and the axis direction of the cutting disc (2005) is perpendicular to the conveying direction of the fixing belt.

9. The apparatus for producing a pleated cylindrical dust filtration bag according to claim 1, wherein: The cross section of the lower prism (7) is isosceles trapezoidal, the top surface width of the lower prism (7) is smaller than the bottom surface width, the cross section of the upper prism (12) is mirror-symmetrically structured with the cross section of the lower prism (7), the height of the lower prism (7) is consistent with the height of the upper prism (12), and the edges of the two are rounded.

10. The apparatus for producing a pleated cylindrical dust filtration bag according to claim 1, wherein: The lower prism (7) and the upper prism (12) are detachably fixed to the surfaces of the lower conveying belt (6) and the upper conveying belt (11) through the countersunk bolts, and the surfaces of the lower conveying belt (6) and the upper conveying belt (11) are provided with threaded holes matched with the countersunk bolts.

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