A folding filter cartridge envelope apparatus

Abstract

The application belongs to the technical field of filter element production, in particular to a folding filter element film coating equipment, which comprises a moving table, a heating box, a heating plate, a driving roller and an external thread sleeve; the heating plate inside the heating box heats the film outside the folding filter element; when the external thread sleeve rotates, a pushing force to one side is generated, so that the folding filter element at the top of the external thread sleeve is flipped to one side, and the film at the bottom of the folding filter element is rotated to the top and shrinks under the heat; after the folding filter element is conveyed to a plurality of external thread sleeves on the other side, the thread directions of the external thread sleeves here are opposite, so that the folding filter element at the top is reversely rotated; thereby the film shrinking speed outside the folding filter element under the heat is improved, and the film shrinking degree is kept consistent, the probability of film holes due to excessive film shrinking under the heat is reduced, and the probability of film not shrinking due to ineffective heat is reduced; in turn, the film effectively improves the wrapping and sealing of the folding filter element, which is beneficial to the transportation and storage of the folding filter element.

Description

Technical Field

[0001] This invention belongs to the field of filter element production technology, specifically a folded filter element coating device. Background Technology

[0002] Pleated filter cartridges are a type of filter cartridge used in filters. Because they are pleated deep filters with a large membrane filtration area and multiple filtration layers, they have high rejection rate, high flow rate, low pressure drop and wide chemical compatibility. Pleated filter cartridges are the main filter materials today and are widely used in the food, drinking water, chemical and pharmaceutical industries.

[0003] Due to the pleated structure of the pleated filter element, dust and impurities are easily trapped in the pleated layers, making it unsuitable for transportation and storage. Therefore, after the pleated filter element is manufactured, a coating process is performed on its surface. After production, the pleated filter element is conveyed to the coating equipment by a conveyor belt. The coating equipment places the film on the outer ring of the pleated filter element, seals the opening of the film on the outer ring, and then conveys it through a heated oven. The high temperature shrinks the film on the outer ring of the pleated filter element, making it firmly wrapped and attached to the outer ring of the pleated filter element.

[0004] When the pleated filter element covered with a membrane is conveyed to the heating oven by a conveyor belt, the membrane on the top of the pleated filter element will shrink first because the temperature of the part of the pleated filter element in contact with the conveyor belt is relatively low. Then, the membrane in the part of the pleated filter element in contact with the conveyor belt will shrink after the temperature rises. This results in different shrinkage speeds and degrees in different parts of the membrane on the outside of the pleated filter element, which can easily cause some parts of the membrane to shrink excessively and produce holes, while other parts of the membrane have not yet been fully shrunk and covered.

[0005] Therefore, the present invention provides a folded filter cartridge coating device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A folded filter cartridge coating device of this invention includes a moving platform; a heating box is fixedly connected to the center of the top surface of the moving platform; a heating plate is provided on the top inner side of the heating box; multiple drive rollers are uniformly rotatably mounted on the top surface of the moving platform; a power unit is provided on one side of the moving platform, and the power unit drives the multiple drive rollers to rotate synchronously; external threaded sleeves are fixedly connected to the outer rings of the multiple drive rollers located at both ends inside the heating box; the external threads of the multiple external threaded sleeves at both ends have opposite thread directions; the power unit drives the drive rollers to rotate synchronously, driving the folded filter cartridge into the interior of the heating box, where the heating plate heats the film on the outside of the folded filter cartridge, first heating and shrinking the film on the top of the folded filter cartridge. Simultaneously, the pleated filter element moves to multiple external threaded sleeves on one side. As the external threaded sleeves rotate, they generate a thrust to one side, causing the pleated filter element at the top of the external threaded sleeve to flip to one side, allowing the membrane at the bottom of the pleated filter element to rotate to the top for heat shrinkage. When the pleated filter element is transported to multiple external threaded sleeves on the other side, the threads of the external threaded sleeves here are reversed, causing the top pleated filter element to rotate in the opposite direction. This improves the consistency of the heat shrinkage speed and degree of the membrane on the outside of the pleated filter element, reduces the probability of the membrane tearing due to excessive heat shrinkage, and reduces the probability of the membrane not shrinking due to ineffective heating. Consequently, it effectively improves the membrane's sealing of the pleated filter element, which is beneficial for the transportation and storage of the pleated filter element.

[0008] Preferably, the power unit includes a primary motor fixed to the bottom center of the moving platform; the rotating shafts of multiple drive rollers rotate through the side wall of the moving platform; gears are fixed to the outer rings of the drive roller shafts and the outer rings of the primary motor shaft; a synchronous belt is fitted around the outer rings of the multiple gears; providing stable kinetic energy for the movement of the folded filter element; at the same time, the synchronous rotation of the drive rollers for transmission reduces the temperature change on the surface of the transmission belt during conveyor belt transport, effectively ensuring the temperature stability inside the heating chamber, thereby reducing the temperature difference of the film on the outside of the folded filter element.

[0009] Preferably, a hydraulic cylinder is fixedly connected to the center of the top surface of the heating box; the piston rod of the hydraulic cylinder slides through the top of the heating box; a horizontal plate is fixedly connected to the bottom end of the piston rod of the hydraulic cylinder; multiple heating plates are evenly bolted to the bottom surface of the horizontal plate; guide rods are fixedly connected to both sides of the top surface of the horizontal plate; the guide rods slide through the top of the heating box; thereby controlling the temperature change of the heating, which is beneficial to controlling the degree of heating and the shrinkage speed of the film on the outside of the folded filter element.

[0010] Preferably, mounting plates are hinged to both sides of the horizontal plate, and the mounting plates are fixed to the horizontal plate by bolts; the mounting plates on both sides form a figure-eight shape; multiple No. 1 aluminum foil plates are fixed to the bottom surface of the mounting plates; thereby effectively concentrating the heat inside the heating box onto the moving path of the folded filter element; thereby reducing heat loss and waste.

[0011] Preferably, a groove is formed in the center of the top surface of the moving platform; the groove is located inside the heating box; a support plate is hinged to both sides of the inside of the groove; and multiple No. 2 aluminum foil plates are fixed to the top surface of the support plate; thereby ensuring the uniformity of the heating temperature on the outside of the folded filter element, and thus improving the uniformity of the film shrinkage on the outside of the folded filter element due to heat.

[0012] Preferably, a first bidirectional screw is rotatably mounted on the bottom side of the center of the groove; both ends of the first bidirectional screw rotatably penetrate the outer wall of the moving platform; a second motor is fixedly connected to one side of the moving platform; the shaft of the second motor is fixedly connected to one end of the first bidirectional screw; a guide rail is fixedly connected to the bottom surface of the center of the groove; a first slider is threaded onto the outer rings of both ends of the first bidirectional screw; the bottom of the first slider slides in cooperation with the guide rail; a connecting rod is hinged to the top of the first slider; the top of the connecting rod is hinged to the bottom surface of the support plate; thereby controlling the angle and range of heat reflection by the second aluminum foil plate, and thus controlling the heating area on the outside of the folded filter element.

[0013] Preferably, the top surface of the moving platform has grooves at both ends; a second bidirectional screw is rotatably installed inside the groove at one end; one end of the second bidirectional screw rotatably penetrates the outer wall of the moving platform, and a handle is provided at this end of the second bidirectional screw; a sliding rod is fixedly connected inside the groove at the other end; a second slider is threadedly installed on the outer rings of both ends of the second bidirectional screw; the second slider slides in a sliding fit with the inside of the groove; a third slider is slidably installed on the outer rings of both ends of the sliding rod; the third slider slides in a sliding fit with the inside of the groove; a connecting plate is fixedly connected to the top surface between the second and third sliders; the connecting plate is located between the top surface of the moving platform and the bottom of the drive roller; multiple stop bars are provided on the top surface of the connecting plate; the stop bars are located between two adjacent drive rollers; thereby controlling the distance between the stop bars on both sides, and thus preventing the folded filter element from deflecting when it is conveyed on the drive roller and the external threaded sleeve.

[0014] Preferably, the connecting plate has a straight groove in the middle; a sliding clamp is slidably installed inside the straight groove; a threaded hole is opened at the top of the sliding clamp; a screw is fixedly connected to the bottom of the stop rod; the screw at the bottom of the stop rod is threadedly engaged with the threaded hole of the sliding clamp; the diameter of the stop rod is greater than the width of the straight groove; thus, it is convenient for the operator to control the distance between the stop rods on the same side, thereby reducing the probability of the pleated filter element entering between the two stop rods when it deflects, and effectively ensuring the stability of the pleated filter element conveying.

[0015] Preferably, vertical screws are fixedly connected to both sides of the loading end of the moving table; a pair of locking nuts are installed on the outer ring thread of the vertical screws; an arc-shaped guide plate is provided between each pair of locking nuts; the arc-shaped guide plate is sleeved on the outer ring of the vertical screw; the arc-shaped guide plates on both sides block and guide the folded filter element falling onto the moving table, so that the axial direction of the folded filter element is perpendicular to the axial direction of the drive roller.

[0016] Preferably, hollow strip seats are fixed to the bottom of both sides of the inner wall of the heating box; the two hollow strip seats correspond to multiple external threaded sleeves at both ends; the two hollow strip seats are connected to an air pump through a hose; multiple air holes are evenly opened on the side of the hollow strip seat near the middle of the heating box; the airflow generated by the air pump is delivered to the interior of the hollow strip seat through the hose, and then ejected from the air holes, which, together with the external threaded sleeves, drives the folded filter element to flip, thereby improving the efficiency of the folded filter element flipping.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The pleated filter cartridge coating device of the present invention comprises a moving platform, a heating box, a heating plate, a drive roller, and an external threaded sleeve. The drive roller rotates synchronously to drive the pleated filter cartridge into the heating box. The heating plate inside the heating box heats the film on the outside of the pleated filter cartridge. When the external threaded sleeve rotates, it generates a thrust to one side, causing the pleated filter cartridge at the top of the external threaded sleeve to flip to one side, so that the film at the bottom of the pleated filter cartridge rotates to the top for heat shrinkage. When the pleated filter cartridge is transported to multiple external threaded sleeves on the other side, the threads of the external threaded sleeves here are reversed, causing the top pleated filter cartridge to rotate in the opposite direction. This improves the consistency of the heat shrinkage speed and degree of the film on the outside of the pleated filter cartridge, reduces the probability of the film breaking due to excessive heat shrinkage, and reduces the probability of the film not shrinking due to ineffective heating. In turn, it effectively improves the sealing of the film around the pleated filter cartridge, which is beneficial for the transportation and storage of the pleated filter cartridge.

[0019] 2. The folded filter cartridge coating device of the present invention uses a mounting plate and a first aluminum foil plate; by rotating the mounting plate, the angle of the mounting plates on both sides is controlled and fixed and locked with bolts. When the heating plate heats, the heat generated is reflected and concentrated in the middle of the heating box by the first aluminum foil plates on both sides, thereby effectively concentrating the heat inside the heating box onto the moving path of the folded filter cartridge; thereby reducing heat loss and waste. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0022] Figure 2 This is an internal structural diagram of the heating box in Embodiment 1 of the present invention;

[0023] Figure 3 This is a cross-sectional view of Embodiment 1 of the present invention;

[0024] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle;

[0025] Figure 5 This is an exploded view of Embodiment 1 of the present invention;

[0026] Figure 6 This is a structural diagram of the drive roller, external threaded sleeve, and power unit in Embodiment 1 of the present invention;

[0027] Figure 7 This is a diagram showing the internal structure of the groove in Embodiment 1 of the present invention;

[0028] Figure 8 This is a structural diagram of the stop bar in Embodiment 1 of the present invention;

[0029] Figure 9 This is an internal structural diagram of the heating box in Embodiment 2 of the present invention;

[0030] In the diagram: 1. Moving platform; 2. Heating box; 3. Heating plate; 4. Drive roller; 5. External threaded sleeve; 6. Motor No. 1; 7. Gear; 8. Synchronous belt; 9. Hydraulic cylinder; 10. Horizontal plate; 11. Guide rod; 12. Mounting plate; 13. Aluminum foil plate No. 1; 14. Groove; 15. Support plate; 16. Aluminum foil plate No. 2; 17. Bidirectional screw No. 1; 18. Motor No. 2; 19. Guide rail; 20. Slider No. 1; 21. Connecting rod; 22. Slide groove; 23. Bidirectional screw No. 2; 24. Slide rod; 25. Slider No. 2; 26. Slider No. 3; 27. Connecting plate; 28. Stop bar; 29. ​​Straight groove; 31. Vertical screw; 32. Locking nut; 33. Arc-shaped guide plate; 34. Hollow strip seat. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example

[0032] like Figures 1 to 3As shown in the embodiment of the present invention, a folded filter cartridge coating device includes a movable platform 1; a heating box 2 is fixedly connected to the center of the top surface of the movable platform 1; a heating plate 3 is provided on the top inner side of the heating box 2; multiple drive rollers 4 are uniformly rotatably mounted on the top surface of the movable platform 1; a power unit is provided on one side of the movable platform 1, and the power unit drives the multiple drive rollers 4 to rotate synchronously; external threaded sleeves 5 are fixedly connected to the outer rings of the multiple drive rollers 4 located at both ends inside the heating box 2; the thread directions of the external threads of the multiple external threaded sleeves 5 at both ends are opposite; during operation, after the folded filter cartridge is produced, it is conveyed to the coating device by a conveyor belt. The coating device will put the film on the outer ring of the folded filter cartridge, and then seal the opening of the film on the outer ring of the folded filter cartridge. The folded filter cartridge is then conveyed to the top surface of the movable platform 1 by the conveyor belt, and the folded filter cartridge falls onto the top surface of the drive rollers 4. At this time, the axial direction of the folded filter cartridge is perpendicular to the axial direction of the drive rollers 4; the power unit drives the drive rollers 4 to rotate synchronously. The rotating mechanism drives the pleated filter element into the heating chamber 2. The heating plate 3 inside the chamber heats the membrane on the outside of the pleated filter element. First, the membrane at the top of the pleated filter element shrinks due to heat. Simultaneously, the pleated filter element moves to multiple external threaded sleeves 5 on one side. As the external threaded sleeves 5 rotate, they generate a pushing force to one side, causing the pleated filter element at the top of the external threaded sleeve 5 to flip to one side, allowing the membrane at the bottom of the pleated filter element to rotate to the top for heating and shrinkage. When the pleated filter element is transported to multiple external threaded sleeves 5 on the other side, the threads of these sleeves are reversed, causing the top of the pleated filter element to rotate in the opposite direction. This improves the consistency of the heating and shrinkage speed of the membrane on the outside of the pleated filter element, reducing the probability of holes caused by excessive heating and shrinkage, and reducing the probability of the membrane not shrinking due to ineffective heating. This effectively improves the sealing of the membrane around the pleated filter element, facilitating its transportation and storage.

[0033] like Figure 1 , Figure 5 and Figure 6 As shown, the power unit includes a primary motor 6 fixed to the bottom center of the moving platform 1; the rotating shafts of multiple drive rollers 4 rotate through the side wall of the moving platform 1; gears 7 are fixedly connected to the outer rings of the rotating shafts of the drive rollers 4 and the outer rings of the rotating shafts of the primary motor 6; a synchronous belt 8 is fitted around the outer rings of the multiple gears 7; during operation, the primary motor 6 provides power, which, through the transmission of the multiple gears 7 and the synchronous belt 8, drives the multiple drive rollers 4 to rotate synchronously, thereby driving the pleated filter element into and out of the heating chamber 2, providing stable kinetic energy for the movement of the pleated filter element; at the same time, the synchronous rotation of the drive rollers 4 reduces the temperature change on the surface of the transmission belt during conveyor belt transport, effectively ensuring the temperature stability inside the heating chamber 2, thereby reducing the temperature difference of the film on the outside of the pleated filter element.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a hydraulic cylinder 9 is fixedly connected to the center of the top surface of the heating box 2; the piston rod of the hydraulic cylinder 9 slides through the top of the heating box 2; a horizontal plate 10 is fixedly connected to the bottom end of the piston rod of the hydraulic cylinder 9; multiple heating plates 3 are evenly bolted to the bottom surface of the horizontal plate 10; guide rods 11 are fixedly connected to both sides of the top surface of the horizontal plate 10; the guide rods 11 slide through the top of the heating box 2; during operation, the hydraulic cylinder 9 pushes the horizontal plate 10 to rise and fall inside the heating box 2, driving the guide rods 11 to rise and fall, controlling the vertical distance between the heating plate 3 and the pleated filter element, thereby controlling the temperature change of the heating, which is beneficial to controlling the degree of heating and the shrinkage speed of the film on the outside of the pleated filter element.

[0035] like Figure 3 and Figure 5 As shown, mounting plates 12 are hinged to both sides of the horizontal plate 10, and the mounting plates 12 are fixed to the horizontal plate 10 by bolts; the mounting plates 12 on both sides form a figure-eight shape; multiple No. 1 aluminum foil plates 13 are fixed to the bottom surface of the mounting plates 12; during operation, the mounting plates 12 are rotated to control the angle of the mounting plates 12 on both sides, and are fixed and locked with bolts. When the heating plate 3 heats, the heat generated is reflected and concentrated in the middle of the heating box 2 by the No. 1 aluminum foil plates 13 on both sides, thereby effectively concentrating the heat inside the heating box 2 onto the moving path of the folded filter element; thereby reducing heat loss and waste.

[0036] like Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, a groove 14 is provided in the center of the top surface of the moving platform 1; the groove 14 is located inside the heating box 2; a support plate 15 is hinged to both sides of the inside of the groove 14; a plurality of second aluminum foil plates 16 are fixed to the top surface of the support plate 15; during operation, the heat generated by the heating plate 3 is reflected by the second aluminum foil plates 16 on the support plate 15, thereby effectively preventing the heat waste inside the heating box 2, and at the same time, effectively reflecting the heat to the film at the bottom of the folded filter element, thereby ensuring the uniformity of the heating temperature on the outside of the folded filter element, and thus improving the uniformity of the film shrinkage under heat on the outside of the folded filter element.

[0037] like Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, a first bidirectional screw 17 is rotatably mounted on the bottom side of the center of the groove 14; both ends of the first bidirectional screw 17 rotatably penetrate the outer wall of the moving platform 1; a second motor 18 is fixedly connected to one side of the moving platform 1; the shaft of the second motor 18 is fixedly connected to one end of the first bidirectional screw 17; a guide rail 19 is fixedly connected to the bottom surface of the center of the groove 14; a first slider 20 is threaded onto the outer rings of both ends of the first bidirectional screw 17; the bottom of the first slider 20 is connected to the guide rail 19. Sliding fit; the top of the first slider 20 is hinged to a connecting rod 21; the top of the connecting rod 21 is hinged to the bottom surface of the support plate 15; during operation, the second motor 18 drives the first bidirectional screw 17 to rotate, driving the two first sliders 20 to slide towards each other along the guide rail 19, driving the connecting rod 21 to move, driving the support plate 15 to rotate, controlling the angle of the second aluminum foil plates 16 on both sides, thereby controlling the angle and range of heat reflection by the second aluminum foil plates 16, and then controlling the area range of heating on the outside of the folded filter element.

[0038] like Figure 2 , Figure 5 and Figure 8 As shown, the top surface of the moving platform 1 has sliding grooves 22 at both ends; a second bidirectional screw 23 is rotatably installed inside the sliding groove 22 at one end; one end of the second bidirectional screw 23 rotatably penetrates the outer wall of the moving platform 1, and a handle is provided at this end of the second bidirectional screw 23; a sliding rod 24 is fixedly connected inside the sliding groove 22 at the other end; a second slider 25 is threadedly installed on the outer rings of both ends of the second bidirectional screw 23; the second slider 25 slides in cooperation with the inside of the sliding groove 22; a third slider 26 is slidably installed on the outer rings of both ends of the sliding rod 24; the third slider 26 slides in cooperation with the inside of the sliding groove 22; a connecting plate 27 is fixedly connected to the top surface between the second slider 25 and the third slider 26; the connecting plate 27 is located between the top surface of the moving platform 1 and the bottom of the drive roller 4; the top surface of the connecting plate 27 is provided with There are multiple baffles 28; the baffles 28 are located between two adjacent drive rollers 4; when the pleated filter element is conveyed on the drive roller 4 and the external threaded sleeve 5, the pleated filter element is prone to deflection to a horizontal position with the drive roller 4, causing the pleated filter element to get stuck in the gap of the drive roller 4; during operation, the operator controls the distance between the baffles 28 on both sides according to the length of the pleated filter element, so that the distance between the baffles 28 on both sides is less than the length of the pleated filter element; the operator rotates the second bidirectional screw 23, drives the second sliders 25 on both sides to slide towards each other, drives the connecting plates 27 on both sides to slide towards each other, drives the two third sliders 26 to slide along the slide bar 24, drives the baffles 28 on both sides to move towards each other, thereby controlling the distance between the baffles 28 on both sides, and thus preventing the pleated filter element from deflecting when conveyed on the drive roller 4 and the external threaded sleeve 5.

[0039] like Figure 8As shown, the connecting plate 27 has a straight groove 29 in the middle; a sliding clamp is slidably installed inside the straight groove 29; a threaded hole is opened at the top of the sliding clamp; a screw is fixedly connected to the bottom of the stop rod 28; the screw at the bottom of the stop rod 28 is threadedly engaged with the threaded hole of the sliding clamp; the diameter of the stop rod 28 is larger than the width of the straight groove 29; during operation, the sliding clamp is pushed to slide along the straight groove 29, and the screw at the bottom of the stop rod 28 is threadedly installed into the threaded hole of the sliding clamp, thereby facilitating the operator to control the distance between the stop rods 28 on the same side, thereby reducing the probability of the pleated filter element deflecting and entering between the two stop rods 28, effectively ensuring the stability of the pleated filter element conveying.

[0040] like Figure 1 and Figure 2 As shown, vertical screws 31 are fixed to both sides of the loading end of the moving table 1; a pair of locking nuts 32 are installed on the outer ring of the vertical screws 31; an arc-shaped guide plate 33 is provided between each pair of locking nuts 32; the arc-shaped guide plate 33 is sleeved on the outer ring of the vertical screws 31; during operation, the arc-shaped guide plate 33 is rotated to adjust the angle of the arc-shaped guide plate 33, and then the two locking nuts 32 are used to clamp and lock it, and the height of the arc-shaped guide plate 33 is controlled; the arc-shaped guide plates 33 on both sides block and guide the folded filter element falling on the moving table 1, so that the axial direction of the folded filter element is perpendicular to the axial direction of the drive roller 4. Example

[0041] like Figure 9 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: hollow strip seats 34 are fixedly connected to the bottom of both sides of the inner wall of the heating box 2; the two hollow strip seats 34 correspond to the multiple external threaded sleeves 5 at both ends; the two hollow strip seats 34 are connected to the air pump through a hose; multiple air holes are evenly opened on the side of the hollow strip seat 34 near the middle of the heating box 2; when working, when the external threaded sleeve 5 rotates, it will generate a thrust to one side, causing the folded filter element at the top of the external threaded sleeve 5 to flip to one side. At the same time, the airflow generated by the air pump is delivered to the interior of the hollow strip seat 34 through the hose, and then ejected from the opened air holes, which, together with the external threaded sleeve 5, drives the folded filter element to flip, thereby improving the efficiency of the folded filter element flipping.

[0042] Working principle: Rotate the mounting plate 12 to control the angle of the mounting plates 12 on both sides, and use bolts to fix and lock them; the second motor 18 drives the first bidirectional screw 17 to rotate, driving the two first sliders 20 to slide towards each other along the guide rail 19, driving the connecting rod 21 to move, driving the support plate 15 to rotate, and controlling the angle of the second aluminum foil plates 16 on both sides; effectively concentrate the heat inside the heating box 2 onto the moving path of the pleated filter element; according to the length of the pleated filter element, control the distance between the two side baffles 28 so that the distance between the two side baffles 28 is less than the length of the pleated filter element; push the sliding clamp block to slide along the straight groove 29, and install the screw thread at the bottom of the baffle 28 onto the... Inside the threaded hole of the sliding clamp, the distance between the stop rods 28 on the same side is controlled; the operator rotates the second bidirectional screw 23, which drives the second sliders 25 on both sides to slide towards each other, which drives the connecting plates 27 on both sides to slide towards each other, which drives the two third sliders 26 to slide along the slide rod 24, which drives the stop rods 28 on both sides to move towards each other, controlling the distance between the stop rods 28 on both sides; rotate the arc guide plate 33, adjust the angle of the arc guide plate 33, and then use two locking nuts 32 to clamp and lock, and control the height of the arc guide plate 33; the arc guide plates 33 on both sides block and guide the folded filter element falling onto the moving table 1, so that the axis of the folded filter element is perpendicular to the axis of the drive roller 4;

[0043] After the pleated filter element is produced, it is conveyed to the coating equipment by a conveyor belt. The coating equipment wraps the film around the outer ring of the pleated filter element and seals the opening of the film on the outer ring. The pleated filter element is then conveyed to the top surface of the moving table 1 and falls onto the top surface of the drive roller 4. The first motor 6 provides power, which drives multiple drive rollers 4 to rotate synchronously through the transmission of multiple gears 7 and synchronous belts 8, driving the pleated filter element into the interior of the heating box 2. The heating plate 3 inside the heating box 2 heats the film on the outside of the pleated filter element. At the same time, the heat generated is concentrated by the reflection of the first aluminum foil plate 13 and the second aluminum foil plate 16. First, the film on the top of the pleated filter element shrinks due to heat. At the same time, the pleated filter element moves to multiple external threaded sleeves 5 on one side. When the external threaded sleeves 5 rotate, they generate a thrust to one side, causing the film to shrink. The pleated filter element at the top of the external threaded sleeve 5 flips to one side. Simultaneously, the airflow generated by the air pump is delivered to the interior of the hollow strip seat 34 through a hose, and then ejected through the air holes. This, in conjunction with the external threaded sleeve 5, drives the pleated filter element to flip, causing the membrane at the bottom of the pleated filter element to rotate to the top for heat shrinkage. When the pleated filter element is transported to multiple external threaded sleeves 5 on the other side, the threads of these sleeves are reversed, causing the top pleated filter element to rotate in the opposite direction. This improves the consistency of the heat shrinkage speed and degree of the membrane on the outside of the pleated filter element, reduces the probability of the membrane tearing due to excessive heat shrinkage, and reduces the probability of the membrane not shrinking due to ineffective heating. Consequently, it effectively improves the sealing of the membrane around the pleated filter element, which is beneficial for the transportation and storage of the pleated filter element.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus for folding a filter cartridge wrapper, the apparatus comprising: The utility model provides a kind of heating device, including mobile station (1);The top surface middle part of the mobile station (1) is fixed with heating box (2);The inside top of the heating box (2) is provided with heating plate (3);The top surface of the mobile station (1) is evenly rotatably installed with multiple drive rollers (4);The side of the mobile station (1) is provided with power unit, and power unit drives multiple drive rollers (4) synchronous rotation;Multiple the outer circle of drive roller (4) located at both ends inside heating box (2) is fixed with outer thread sleeve (5);The thread direction of the outer thread of multiple the outer thread sleeve (5) located at both ends inside heating box (2) is opposite; The film of folding filter top is heated and shrinks, folding filter moves to multiple outer thread sleeve (5) on one side, when outer thread sleeve (5) rotates, it will generate the thrust to one side, so that folding filter on the top of outer thread sleeve (5) overturns to one side.

2. The folded filter cartridge wrapper apparatus of claim 1 wherein: The power unit includes a first motor (6) fixed to the middle bottom surface of the mobile station (1);The rotating shafts of the multiple drive rollers (4) rotatably penetrate the side wall of the mobile station (1);The outer circles of the rotating shaft ends of the drive rollers (4) and the rotating shaft outer circles of the first motor (6) are both fixed with gears (7);The outer circles of the multiple gears (7) are sleeved with synchronous belts (8).

3. The folded filter cartridge wrapper apparatus of claim 1 wherein: The top middle part of the heating box (2) is fixed with a hydraulic cylinder (9);The piston rod of the hydraulic cylinder (9) slidably penetrates the top of the heating box (2);The bottom end of the piston rod of the hydraulic cylinder (9) is fixed with a horizontal plate (10);The bottom surface of the horizontal plate (10) is uniformly bolted with multiple heating plates (3);The top surface of the horizontal plate (10) is fixed with guide rods (11) on both sides;The guide rods (11) slidably penetrate the top of the heating box (2).

4. An apparatus for folding filter cartridges according to claim 3, wherein: The both sides of the horizontal plate (10) are hingedly connected with mounting plates (12), and the mounting plates (12) and the horizontal plate (10) are fixed by bolts;The both sides of the mounting plates (12) form an eight-shaped structure;The bottom surface of the mounting plate (12) is fixed with multiple first aluminum foil plates (13).

5. The folded filter cartridge wrapper apparatus of claim 1 wherein: The top middle part of the mobile station (1) is provided with a groove (14);The groove (14) is located inside the heating box (2);The both sides of the inside of the groove (14) are hingedly connected with supporting plates (15);The top surface of the supporting plate (15) is fixed with multiple second aluminum foil plates (16).

6. An apparatus for folding filter cartridges according to claim 5 wherein: The middle bottom side of the groove (14) is rotatably installed with a first bidirectional screw rod (17);The both ends of the first bidirectional screw rod (17) rotatably penetrate the outer wall of the mobile station (1);One side of the mobile station (1) is fixed with a second motor (18);The rotating shaft of the second motor (18) is fixed with one end of the first bidirectional screw rod (17);The middle bottom surface of the groove (14) is fixed with a guide rail (19);The both end outer circles of the first bidirectional screw rod (17) are threadedly installed with a first sliding block (20);The bottom of the first sliding block (20) is in sliding cooperation with the guide rail (19);The top of the first sliding block (20) is hingedly connected with a connecting rod (21);The top end of the connecting rod (21) is hingedly connected with the bottom surface of the supporting plate (15).

7. The folded filter cartridge wrapper apparatus of claim 1 wherein: The top surface of the mobile station (1) is provided with a sliding groove (22) at both ends; a No. 2 bidirectional screw rod (23) is rotatably installed inside the sliding groove (22) at one end; one end of the No. 2 bidirectional screw rod (23) rotatably penetrates the outer wall of the mobile station (1), and the end of the No. 2 bidirectional screw rod (23) is provided with a handle; a sliding rod (24) is fixedly connected inside the sliding groove (22) at the other end; No. 2 sliding blocks (25) are threadedly installed on the outer circles of both ends of the No. 2 bidirectional screw rod (23); the No. 2 sliding blocks (25) are in sliding fit with the inside of the sliding groove (22); No. 3 sliding blocks (26) are slidingly installed on the outer circles of both ends of the sliding rod (24); the No. 3 sliding blocks (26) are in sliding fit with the inside of the sliding groove (22); a connecting plate (27) is fixedly connected to the top surface between the No. 2 sliding blocks (25) and the No. 3 sliding blocks (26); the connecting plate (27) is located between the top surface of the mobile station (1) and the bottom of the drive roller (4); a plurality of stop rods (28) are arranged on the top surface of the connecting plate (27); the stop rods (28) are located between adjacent two drive rollers (4).

8. An apparatus for folding filter cartridges according to claim 7, wherein: A straight slot (29) is formed in the middle of the connecting plate (27); a sliding clamp block is slidingly installed inside the straight slot (29); a threaded hole is formed in the top of the sliding clamp block; a screw rod is fixedly connected to the bottom of the stop rod (28); the screw rod at the bottom of the stop rod (28) is in threaded fit with the threaded hole of the sliding clamp block; the diameter of the stop rod (28) is greater than the width of the straight slot (29).

9. An apparatus for folding filter cartridges according to claim 8, wherein: Vertical screw rods (31) are fixedly connected to the two sides of the feeding end of the mobile station (1); a pair of locking nuts (32) are threadedly installed on the outer circles of the vertical screw rods (31); an arc-shaped guide plate (33) is arranged between each pair of locking nuts (32); the arc-shaped guide plate (33) is sleeved on the outer circle of the vertical screw rod (31).

10. The folded filter cartridge wrapper apparatus of claim 1 wherein: Hollow strip seats (34) are fixedly connected to the bottoms of the inner walls of the heating box (2) on both sides; the two hollow strip seats (34) correspond to the two ends of the plurality of external thread sleeves (5) respectively; the two hollow strip seats (34) are communicated by a hose air pump; a plurality of air holes are uniformly formed in one side of the hollow strip seat (34) close to the middle of the heating box (2).

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