An integrated seamless dust removal filter bag, its preparation method and device

Abstract

The present invention relates to the technical field of dust removal filter bags, and specifically to an integrated seamless dust removal filter bag, a preparation method and a device thereof. The integrated seamless dust removal filter bag body is sleeved on the cage from bottom to top. A venturi tube is inserted into the top of the cage. The height of the integrated seamless dust removal filter bag body is greater than the height of the cage. The top end of the integrated seamless dust removal filter bag body is turned inward and inserted into the top end of the cage. A limiting member is inserted into the top end of the cage for clamping and limiting the integrated seamless dust removal filter bag body after being turned inward. The beneficial effect is that through the design of unique limiting members and elastic clamping members, a firm connection between the filter bag and the cage is achieved. The limiting member can easily fix the inward-turned part of the filter bag on the cage through the cooperation of the slider and the card slot without a complex fixing structure. At the same time, the elastic clamping member uses the elastic deformation of the elastic band loop to attach a part of the filter bag to the cage, further enhancing the firmness of the connection.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal filter bags, and specifically to an integrated seamless dust removal filter bag, a preparation method and a device thereof. Background Art

[0002] In the field of dust removal technology, dust removal filter bags are key components in dust removal equipment, and their performance directly affects the dust removal efficiency and effect. Traditional dust removal filter bags usually have problems such as complex installation, unstable fixation, inconvenient disassembly, and unsatisfactory dust cleaning effect. Specifically:

[0003] Installation and fixation problems: When installing traditional dust removal filter bags, complex fixation structures are often required to install them on the cage, which not only increases the installation difficulty but also may cause damage to the filter bags during installation. At the same time, the instability of the fixation structure may also cause the filter bags to loosen or fall off during use, affecting the dust removal effect.

[0004] Disassembly and replacement problems: Due to the complex fixation method of traditional dust removal filter bags, great difficulties are also faced during disassembly and replacement. This not only increases the maintenance cost but also may cause damage to the filter bags due to improper disassembly.

[0005] Dust cleaning effect problems: The dust cleaning method of traditional dust removal filter bags usually relies on external air flow impact or mechanical vibration, but this method often fails to completely remove the dust on the surface of the filter bags. Especially at the folds and corners of the filter bags, dust is likely to accumulate and form "dead corners", affecting the dust removal efficiency and the service life of the filter bags. Summary of the Invention

[0006] The purpose of the present invention is to provide an integrated seamless dust removal filter bag, a preparation method and a device thereof to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An integrated seamless dust removal filter bag, including an integrated seamless dust removal filter bag body, the integrated seamless dust removal filter bag body is sleeved on the cage from bottom to top, a venturi tube is inserted into the top of the cage, the height of the integrated seamless dust removal filter bag body is greater than the height of the cage, the top end of the integrated seamless dust removal filter bag body is turned inward and inserted into the top end of the cage, a limiting member is inserted into the top end of the cage for clamping and limiting the turned-in integrated seamless dust removal filter bag body, a movable plug is arranged between the limiting member and the cage, and when the venturi tube is inserted into the end of the cage, the limiting member connects the limiting frame and the cage, after the venturi tube is pulled out from the top of the cage, the limiting member rebounds to cancel the connection between the limiting member and the cage, and an elastic clamping member is arranged between the integrated seamless dust removal filter bag body and the cage for locally attaching the integrated seamless dust removal filter bag body to the cage for limiting.

[0008] Preferably, the cage frame includes a top ring, connecting rods, a bottom plate, and support rings. The top ring is a "T"-shaped circular tube. There are multiple connecting rods, and the multiple connecting rods are arranged and distributed at equal distances and of equal size along the inner ring surface of the top ring. The top ends of the connecting rods are fixed to the inner ring surface of the top ring, and a space for installing the limiting member is reserved on the top surface of the connecting rods and the top surface of the top ring. The bottom plate is in a circular frame structure. There are multiple support rings, and the multiple support rings are arranged and distributed along the long sides of the connecting rods. The multiple connecting rods are all fixed to the outer ring surfaces of the support rings.

[0009] Preferably, the limiting member includes a pressure ring, a plug rod inserted into the inner ring surface of the pressure ring, and a clamping ring inserted into the top end of the connecting rod. The pressure ring is a "T"-shaped circular tube. A slider is fixed to the bottom surface of the pressure ring. There are multiple sliders, and the sliders correspond to the connecting rods one by one. The slider is a "U"-shaped block. When the pressure ring slides down and is inserted into the top ring, the slider slides along the connecting rod. A first card slot is formed on the top surface of the connecting rod. The first card slot is an arc-shaped slot. The bottom end of the clamping ring is simultaneously inserted into the first card slots on the top surfaces of the multiple connecting rods. And the inturned part of the integrated seamless dust removal filter bag body is clamped by the clamping ring in the first card slot. The plug rod penetrates through the pressure ring and is inserted into the surface of the connecting rod.

[0010] Preferably, an embedding groove is formed on the inner ring surface of the pressure ring. The embedding groove is an annular groove. A rubber clamping ring is fixed inside the embedding groove. The inner ring diameter of the rubber clamping ring is smaller than the inner ring diameter of the pressure ring. The pressure ring is a circular ring plate with a "concave"-shaped cross section. The rubber clamping ring is clamped between the venturi tube and the pressure ring and generates elastic deformation. Through holes one are formed on the surfaces of both the rubber clamping ring and the pressure ring. The plug rod penetrates through the two through holes one and then is inserted into the slot. The slot is formed on the surface of the connecting rod.

[0011] Preferably, a round table block is integrally formed at one end of the plug rod away from the connecting rod. A second through hole is formed on the rod body of the plug rod. A blocking strip is inserted into the second through hole. The blocking strip is fixed between the top surface and the bottom surface of the through hole one. A rubber connecting block is fixed to the surface of the blocking strip. One end of the rubber connecting block is fixed to the surface of the second through hole. When the pressure ring pushes the plug rod to be inserted into the slot, the rubber connecting block is stretched and generates elastic deformation. When the pressure ring is removed from the top ring and no longer blocks the plug rod, the rubber connecting block rebounds and resets to pull the plug rod out of the slot.

[0012] Preferably, the elastic clamping member includes an elastic band loop and a second card slot. The second card slot is an "Ω"-shaped slot. The second card slot is formed on the rod body of the connecting rod. There are multiple second card slots, and the multiple second card slots are arranged and distributed at equal distances and of equal size along the rod body of the connecting rod. After the elastic band loop is sleeved on the outside of the multiple connecting rods and then pushed into the second card slot, a partial area of the integrated seamless dust removal filter bag body is clamped by the elastic band loop in the second card slot, realizing the connection and limitation between the integrated seamless dust removal filter bag body and the connecting rod.

[0013] Preferably, a dust cleaning mechanism is provided inside the cage frame for regularly cleaning the inside of the integrated seamless dust filter bag body.

[0014] Preferably, the dust cleaning mechanism includes a first lifting ring and a second lifting ring. Reserved grooves are formed on the outer ring surfaces of the first lifting ring and the second lifting ring. The reserved grooves are in the shape of a "U" - shaped groove and are matched with the connecting rods. The connecting rods extend into the reserved grooves. Brushes are fixed on the top and bottom surfaces of the first lifting ring and the second lifting ring. The brushes cover the top and bottom surfaces of the first lifting ring and the second lifting ring. One end of the brush abuts against the inside of the integrated seamless dust filter bag body and then the brush bends and deforms. A plurality of first traction rods are fixed on the inner ring surface of the second lifting ring. The first traction rods are in the shape of an "L" - shaped rod. The bottom ends of the first traction rods are fixed on the rod body of the connecting pipe. One end of the connecting pipe is fixed on the inner ring surface of the first lifting ring. The other end of the connecting pipe is fixed on the outer wall of the wire sleeve. The wire sleeve is sleeved and screwed on the rod body of the lead screw. The bottom end of the lead screw is drivingly connected to the power output end of the servo motor. The servo motor is fixed inside the mounting seat. The mounting seat is in the shape of an inverted "T" - shaped cylinder. The bottom plate of the mounting seat is fixed to the bottom surface of the base plate by screws. A stop block is fixed at the top end of the lead screw. A bearing is sleeved on the top end of the lead screw. A plurality of second traction rods are fixed on the outer ring of the bearing. One end of the second traction rod is fixed with a connecting ring. The connecting ring is fixed on the inner ring surface of the support ring. The first traction rod passes through the connecting ring.

[0015] A preparation method for an integrated seamless dust filter bag, the method comprising the following steps:

[0016] A card slot one is cut and opened at the top end of the rod body of the connecting rod in advance, and a card slot two is cut and opened on the rod body of the connecting rod. The top of the connecting rod is welded to the inner ring surface of the top ring, and the bottom end of the connecting rod is welded to the inner ring surface of the base plate, thus forming a basic cage frame.

[0017] The integrated seamless dust filter bag body is sleeved on the basic cage frame from bottom to top, and the top of the integrated seamless dust filter bag body is turned inside out and inserted into the cage frame. Then, the pressing ring is inserted into the top of the top ring, and the clamping ring clamps a part of the turned - inside - out part inside the integrated seamless dust filter bag body in the card slot one to realize the top limit of the integrated seamless dust filter bag body. It is necessary to ensure that a telescopic length is reserved below the integrated seamless dust filter bag body when it is limited by the elastic band loop.

[0018] After the elastic band loop is expanded and deformed and sleeved on the outside of the integrated seamless dust filter bag body, the elastic band loop is pushed and clamped into the card slot two. At this time, a part of the integrated seamless dust filter bag body is clamped and limited in the card slot two.

[0019] A device for preparing an integrated seamless dust filter bag, the device comprising:

[0020] Fiber opening and mixing equipment is used to open and mix raw materials of polyester fiber, polypropylene fiber, and glass fiber to form a uniform filter slurry;

[0021] Filter media mold and forming equipment. Among them, the filter media mold is used to make the shape and size of the dust removal filter bag, and its flatness, perpendicularity, and cleanliness need to be ensured; the forming equipment pours the filter slurry into the mold and performs multiple vibrations, flips, and drying to ensure the uniform distribution and firm fixation of the filter media.

[0022] Cutting and sewing equipment cuts the filter media taken out from the mold to meet the specification requirements of the filter bag; the sewing equipment is used to sew the cut filter media into a complete filter bag.

[0023] High-temperature shaping equipment is used to perform high-temperature shaping treatment on the sewn filter bag to improve its dimensional stability and heat resistance.

[0024] Quality inspection and airtightness testing equipment inspects the appearance, size, and weight of the made dust removal filter bag to ensure its qualified quality; the airtightness testing equipment is used to detect the airtight performance of the filter bag to ensure that it will not leak during use.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The integrated seamless dust removal filter bag, its preparation method and device proposed by the present invention achieve a firm connection between the filter bag and the cage through the design of unique limiting parts and elastic clamping parts. The limiting part can easily fix the in-turned part of the filter bag on the cage through the cooperation of the slider and the card slot without a complex fixing structure. At the same time, the elastic clamping part uses the elastic deformation of the elastic band to attach a part of the filter bag to the cage, further enhancing the firmness of the connection. This design not only simplifies the installation process but also reduces the risk of damage to the filter bag during installation.

[0027] Both the limiting part and the elastic clamping part are designed with convenient disassembly methods. The limiting part realizes the connection and disconnection with the cage through the elastic deformation of the rubber connecting block, while the elastic clamping part realizes the fixation and release with the cage through the expansion and rebound methods. This design makes the disassembly and replacement of the filter bag more convenient and fast, reducing the maintenance cost and time.

[0028] A dust cleaning mechanism is arranged inside the cage. Through the cooperation of the servo motor driving the lead screw and the nut sleeve, the reciprocating lifting movement of the lifting ring is realized. The brush on the lifting ring can expand the filter bag from the inside of the filter bag and clean its inner wall, effectively removing the dust and "dead corners" on the surface of the filter bag. This dust cleaning method not only improves the dust removal efficiency but also extends the service life of the filter bag. Description of the Drawings

[0029] Figure 1Schematic structural diagram of the present invention;

[0030] Figure 2 Top view of the structure of the present invention;

[0031] Figure 3 is Figure 2 Cross-sectional view of the structure at A-A in

[0032] Figure 4 is Figure 3 Enlarged schematic view of the structure at A in

[0033] Figure 5 is Figure 3 Enlarged schematic view of the structure at B in

[0034] Figure 6 is Figure 4 Enlarged schematic view of the structure at C in

[0035] Figure 7 Schematic structural diagram of the cage frame of the present invention;

[0036] Figure 8 is Figure 7 Enlarged schematic view of the structure at D in

[0037] Figure 9 Schematic structural diagram of the pressure ring of the present invention;

[0038] Figure 10 Schematic structural diagram of the connection structure between the first lifting ring and the second lifting ring of the present invention;

[0039] Figure 11 Schematic structural diagram of the connection structure between the support ring and the bearing of the present invention;

[0040] Figure 12 Schematic structural diagram of the plug rod of the present invention.

[0041] In the figure: integrated seamless dust removal filter bag body 1, venturi tube 2, top ring 3, connecting rod 4, bottom plate 5, support ring 6, first card slot 7, pressure ring 8, clamping ring 9, slider 10, embedded groove 11, rubber clamping ring 12, first through hole 13, slot 14, plug rod 15, second through hole 16, retaining strip 17, rubber connecting block 18, elastic band loop 19, pulling piece 20, mounting seat 21, servo motor 22, lead screw 23, lead screw nut 24, connecting pipe 25, first lifting ring 26, first traction rod 27, second lifting ring 28, reserved groove 29, brush hair 30, connecting ring 31, second traction rod 32, bearing 33, stop block 34, second card slot 35. Detailed implementation manners

[0042] In order to clearly and completely describe the objectives, technical solutions of the present invention, and make the advantages more clear, the following further details the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0043] Embodiment 1, please refer to Figures 1 to 12 , the present invention provides a technical solution: an integrated seamless dust removal filter bag, including an integrated seamless dust removal filter bag body 1. The integrated seamless dust removal filter bag body 1 is sleeved on the cage from bottom to top. A venturi tube 2 is inserted into the top of the cage. The height of the integrated seamless dust removal filter bag body 1 is greater than the height of the cage. The top end of the integrated seamless dust removal filter bag body 1 is turned inward and inserted into the top end of the cage. A limiting member is inserted into the top end of the cage for clamping and limiting the integrated seamless dust removal filter bag body 1 after being turned inward. An active plug is provided between the limiting member and the cage. When the venturi tube 2 is inserted into the end of the cage, the limiting member connects the limiting frame and the cage. After the venturi tube 2 is withdrawn from the top of the cage, the limiting member rebounds, canceling the connection between the limiting member and the cage. An elastic clamping member is provided between the integrated seamless dust removal filter bag body 1 and the cage for locally attaching the integrated seamless dust removal filter bag body 1 to the cage for limiting.

[0044] The cage includes a top ring 3, connecting rods 4, a bottom plate 5, and support rings 6. The top ring 3 is a "T"-shaped circular tube. There are multiple connecting rods 4. The multiple connecting rods 4 are arranged equidistantly and equally sized along the inner ring surface of the top ring 3. The top ends of the connecting rods 4 are fixed to the inner ring surface of the top ring 3. A space for installing the limiting member is reserved on the top surface of the connecting rods 4 and the top surface of the top ring 3. The bottom plate 5 is a circular frame structure. There are multiple support rings 6. The multiple support rings 6 are arranged along the long sides of the connecting rods 4. The multiple connecting rods 4 are all fixed to the outer ring surface of the support rings 6. The cage is used to expand and support the integrated seamless dust removal filter bag body 1 from the inside of the integrated seamless dust removal filter bag body 1 to ensure that the integrated seamless dust removal filter bag body 1 is expanded. And the top of the cage is used for assembling with the venturi tube 2 to facilitate the gas transmission after the dust removal filter bag is installed in the dust collector.

[0045] The limiting member includes a pressing ring 8, a plug rod 15 inserted into the inner ring surface of the pressing ring 8, and a clamping ring 9 inserted at the top end of the connecting rod 4. The pressing ring 8 is a "T"-shaped circular tube. A slider 10 is fixed to the bottom surface of the pressing ring 8. There are multiple sliders 10, and the sliders 10 correspond to the connecting rods 4 one by one. The slider 10 is a "U"-shaped block. When the pressing ring 8 slides down after being inserted into the top ring 3, the slider 10 slides along the connecting rod 4. A first clamping groove 7 is formed on the top surface of the connecting rod 4. The first clamping groove 7 is an arc-shaped groove. The bottom end of the clamping ring 9 is simultaneously inserted into the first clamping grooves 7 on the top surfaces of multiple connecting rods 4. And the inturned part of the integrated seamless dust removal filter bag body 1 is clamped in the first clamping groove 7 by the clamping ring 9. The plug rod 15 passes through the pressing ring 8 and is inserted into the surface of the connecting rod 4. An embedding groove 11 is formed on the inner ring surface of the pressing ring 8. The embedding groove 11 is an annular groove. A rubber clamping ring 12 is fixed inside the embedding groove 11. The inner ring diameter of the rubber clamping ring 12 is smaller than the inner ring diameter of the pressing ring 8. The pressing ring 8 is a circular ring plate with a "concave" cross-section. The rubber clamping ring 12 is clamped between the venturi tube 2 and the pressing ring 8 and generates elastic deformation. Through holes 13 are formed on the surfaces of both the rubber clamping ring 12 and the pressing ring 8. The plug rod 15 passes through two groups of through holes 13 and is inserted into a slot 14. The slot 14 is formed on the surface of the connecting rod 4. A frustum block is integrally formed at one end of the plug rod 15 away from the connecting rod 4. A second through hole 16 is formed on the rod body of the plug rod 15. A retaining bar 17 is inserted into the second through hole 16. The retaining bar 17 is fixed between the top surface and the bottom surface of the through hole 13. A rubber connecting block 18 is fixed to the surface of the retaining bar 17. One end of the rubber connecting block 18 is fixed to the surface of the second through hole 16. When the pressing ring 8 pushes the plug rod 15 into the slot 14, the rubber connecting block 18 is stretched and generates elastic deformation. When the pressing ring 8 is removed from the top ring 3 and no longer blocks the plug rod 15, the rubber connecting block 18 rebounds and resets to pull the plug rod 15 out of the slot 14.

[0046] During use, after the integrated seamless dust removal filter bag body 1 is sleeved on the cage from bottom to top, the part of the integrated seamless dust removal filter bag body 1 that is higher than the cage is turned inward and inserted into the top ring 3. The turned-in part covers the top end of the connecting rod 4. Then, the pressure ring 8 is inserted into the top ring 3. When inserting, align the slider 10 with the connecting rod 4. While pushing down the pressure ring 8, the slider 10 slides along the connecting rod 4 until the top plate of the pressure ring 8 overlaps the connecting rod 4. At this time, the clamping ring 9 clamps a part of the turned-in part of the integrated seamless dust removal filter bag body 1 in the first clamping groove 7 to prevent the integrated seamless dust removal filter bag body 1 from falling off the cage. At this time, the rubber connecting block 18 is in the initial state, that is, the conical block at one end of the insertion rod 15 is in the inner ring opening of the pressure ring 8, and the other end of the insertion rod 15 retracts into the first through hole 13. When the cage with the integrated seamless dust removal filter bag body 1 and the venturi tube 2 are sleeved, when the venturi tube 2 is inserted into the cage, the venturi tube 2 squeezes the insertion rod 15 along the conical block. The insertion rod 15 slides along the first through hole 13, and the insertion rod 15 stretches the rubber connecting block 18 to generate elastic deformation until the other end of the insertion rod 15 is inserted into the slot 14. In this way, the connection between the pressure ring 8 and the connecting rod 4 is strengthened, and the connection between the venturi tube 2 and the cage is realized; when the cage and the venturi tube 2 are separated, the insertion rod 15 is no longer blocked by the venturi tube 2, and the rubber connecting block 18 rebounds to pull the insertion rod 15 back to its original position. At this time, the other end of the insertion rod 15 is withdrawn from the slot 14, so as to cancel the limit between the pressure ring 8 and the connecting rod 4, facilitating the direct removal of the pressure ring 8 from the top ring 3 for disassembly, replacement or cleaning of the integrated seamless dust removal filter bag body 1.

[0047] The elastic clamping member includes an elastic band loop 19 and a second clamping groove 35. The second clamping groove 35 is in the shape of an "Ω" groove and is opened on the rod body of the connecting rod 4. There are multiple second clamping grooves 35, and the multiple second clamping grooves 35 are arranged equidistantly and equally sized along the rod body of the connecting rod 4. After the elastic band loop 19 is sleeved on the outside of multiple connecting rods 4 and the elastic band loop 19 is pushed into the second clamping groove 35, a part of the integrated seamless dust removal filter bag body 1 is clamped by the elastic band loop 19 in the second clamping groove 35 to realize the connection and limit between the integrated seamless dust removal filter bag body 1 and the connecting rod 4; before installing the pressure ring 8, first expand the elastic band loop 19, sleeve the expanded elastic band loop 19 on the integrated seamless dust removal filter bag body 1, and the elastic band loop 19 rebounds and pushes the elastic band loop 19 to push a part of the integrated seamless dust removal filter bag body 1 into the second clamping groove 35. In this way, a clamping position is formed between the integrated seamless dust removal filter bag body 1 and the connecting rod 4 to realize the stable connection between the integrated seamless dust removal filter bag body 1 and the connecting rod 4. After multiple elastic band loops 19 are all pushed into the corresponding second clamping grooves 35, a length for inward turning is reserved at the top of the integrated seamless dust removal filter bag body 1; it should be noted that the height of the support ring 6 on the rod body of the connecting rod 4 is the same as the distribution height of the second clamping grooves 35, and two pulling pieces 20 are symmetrically fixed on the outer ring surface of the elastic band loop 19. When disassembling the elastic band loop 19, pinch the pulling pieces 20 with fingers to stretch the elastic band loop 19 to expand and deform.

[0048] An ash cleaning mechanism is provided inside the cage frame for regularly cleaning the integrated seamless dust removal filter bag body 1 from the inner side of the integrated seamless dust removal filter bag body 1; the ash cleaning mechanism includes a first lifting ring 26 and a second lifting ring 28. Reserved grooves 29 are formed on the outer ring surfaces of the first lifting ring 26 and the second lifting ring 28. The reserved grooves 29 are in the shape of a "U" - shaped groove and are matched with the connecting rods 4. The connecting rods 4 extend into the reserved grooves 29. Brush hairs 30 are fixed on the top and bottom surfaces of the first lifting ring 26 and the second lifting ring 28. The brush hairs 30 cover the top and bottom surfaces of the first lifting ring 26 and the second lifting ring 28. One end of the brush hairs 30 abuts against the inner side of the integrated seamless dust removal filter bag body 1 and then the brush hairs 30 are bent and deformed. A plurality of first traction rods 27 are fixed on the inner ring surface of the second lifting ring 28. The first traction rods 27 are in the shape of an "L" - shaped rod. The bottom ends of the first traction rods 27 are fixed on the rod body of the connecting pipe 25. One end of the connecting pipe 25 is fixed on the inner ring surface of the first lifting ring 26. The other end of the connecting pipe 25 is fixed on the outer wall of the wire sleeve 24. The wire sleeve 24 is sleeved and screwed on the rod body of the lead screw 23. The bottom end of the lead screw 23 is drivingly connected to the power output end of the servo motor 22. The servo motor 22 is fixed inside the mounting seat 21. The mounting seat 21 is in the shape of an inverted "T" - shaped cylinder. The bottom plate of the mounting seat 21 is fixed to the bottom surface of the bottom plate 5 by screws. A stop block 34 is fixed at the top end of the lead screw 23. A bearing 33 is sleeved on the top end of the lead screw 23. A plurality of second traction rods 32 are fixed on the outer ring of the bearing 33. One end of the second traction rods 32 is fixed with a connecting ring 31. The connecting ring 31 is fixed on the inner ring surface of the support ring 6. The first traction rods 27 pass through the connecting ring 31.

[0049] In use, the dust cleaning mechanism is an optional mechanism. The dust cleaning mechanism is installed inside the cage according to needs. During installation, the bottom plate of the mounting base 21 is fixed to the top surface of the bottom plate 5 of the bottom plate by screws. Three support rings 6 are provided. The first lifting ring 26 is located between the bottom support ring 6 and the middle support ring 6, and the second lifting ring 28 is located between the middle support ring 6 and the top support ring 6. When the wire sleeve 24 is at the bottom end of the lead screw 23, the first lifting ring 26 is close to the bottom support ring 6, and the second lifting ring 28 is close to the middle support ring 6. The servo motor 22 is a two-way motor. After triggering the switch of the servo motor 22, the servo motor 22 first drives the lead screw 23 to rotate forward, driving the wire sleeve 24 to climb along the lead screw 23. During this process, the first lifting ring 26 and the second lifting ring 28 climb synchronously, and the brush 30 expands the integrated seamless dust removal filter bag body 1 outward from the inside of the integrated seamless dust removal filter bag body 1 and sweeps the inner wall of the integrated seamless dust removal filter bag body 1. The part of the brush 30 passing through the integrated seamless dust removal filter bag body 1, because the brush 30 expands the integrated seamless dust removal filter bag body 1 outward, is convenient for shaking off the dust adhered to the outer wall of the integrated seamless dust removal filter bag body 1; when the first lifting ring 26 climbs to be close to the middle support ring 6, at this time the second lifting ring 28 is close to the top support ring 6, trigger the pre-programmed control of the servo motor 22, and realize the reverse rotation of the lead screw 23 driven by the servo motor 22. In this way, the first lifting ring 26 and the second lifting ring 28 descend along the connecting rod 4, so as to drive the first lifting ring 26 and the second lifting ring 28 to reciprocate up and down multiple times, which is convenient for clearing the dust on the surface of the integrated seamless dust removal filter bag body 1; the bearing 33 cooperates with the second traction rod 32 to limit the anti-swing of the top of the lead screw 23.

[0050] The detailed usage process is as follows:

[0051] I. Installation and Fixing Principle

[0052] Cage assembly: The cage is composed of a top ring 3, a connecting rod 4, a bottom plate 5 and a support ring 6. The top end of the connecting rod 4 is fixed to the inner ring surface of the top ring 3. The bottom plate 5 is in a circular frame structure, and the support rings 6 are arranged and fixed along the long side of the connecting rod 4.

[0053] Filter bag installation: The integrated seamless dust removal filter bag body 1 is sleeved on the cage from bottom to top. The part of the filter bag protruding above the cage is turned inward and inserted into the top ring 3, covering the top end of the connecting rod 4.

[0054] Limiting part fixing: The pressing ring 8 is inserted into the top ring 3, and the slider 10 slides along the connecting rod 4 until the top plate of the pressing ring 8 overlaps on the connecting rod 4. The clamping ring 9 clamps the inward-turned part of the filter bag in the first card slot 7 on the top surface of the connecting rod 4. The insertion rod 15 passes through the pressing ring 8 and the connecting rod 4, and the stable insertion of the insertion rod 15 in the insertion slot 14 is realized through the elastic deformation of the rubber connecting block 18.

[0055] Elastic clip limit: The elastic band loop 19 is sleeved on the filter bag and rebounds to reset, pushing a part of the filter bag into the second card slot 35 on the connecting rod 4, realizing the stable connection between the filter bag and the cage.

[0056] Venturi tube installation: When the Venturi tube 2 is inserted into the cage, the plug rod 15 is pushed along the conical block. The plug rod 15 slides and tensions the rubber connecting block 18 until the other end of the plug rod 15 is inserted into the slot 14, strengthening the connection between the reinforcing ring 8 and the connecting rod 4.

[0057] II. Working principle of the dust cleaning mechanism

[0058] Structural composition: The dust cleaning mechanism includes a first lifting ring 26, a second lifting ring 28, brush hairs 30, a connecting pipe 25, a wire sleeve 24, a lead screw 23, a servo motor 22 and a mounting seat 21.

[0059] Installation position: The mounting seat 21 is fixed to the bottom surface of the bottom plate 5 by screws. There are three support rings 6. The first lifting ring 26 is located between the bottom support ring 6 and the middle support ring 6, and the second lifting ring 28 is located between the middle support ring 6 and the top support ring 6.

[0060] Dust cleaning process: The servo motor 22 drives the lead screw 23 to rotate forward, driving the wire sleeve 24 to climb along the lead screw 23, and the first lifting ring 26 and the second lifting ring 28 climb synchronously. The brush hairs 30 expand and support the filter bag from the inside of the filter bag and clean the inner wall. When the brush hairs 30 pass through a part of the filter bag, they expand and support the filter bag outward, facilitating the shaking off of the dust adhering to the outer wall of the filter bag. When the first lifting ring 26 climbs close to the middle support ring 6, it triggers the pre-programmed control of the servo motor 22, realizing the reverse rotation of the lead screw 23, and the first lifting ring 26 and the second lifting ring 28 descend. The servo motor 22 drives the first lifting ring 26 and the second lifting ring 28 to reciprocate up and down multiple times to completely clean the dust on the surface of the filter bag.

[0061] Anti-swing limit: The bearing 33 cooperates with the second traction rod 32 to limit the anti-swing of the top of the lead screw 23, ensuring the stable operation of the dust cleaning mechanism.

[0062] III. Disassembly and replacement principle

[0063] Venturi tube disassembly: After the cage is separated from the Venturi tube 2, the plug rod 15 is no longer blocked, and the rubber connecting block 18 rebounds and pulls the plug rod 15 back to its original position, withdrawing from the slot 14, canceling the limit between the pressure ring 8 and the connecting rod 4.

[0064] Filter bag disassembly: Directly pull the pressure ring 8 away from the top ring 3 to release the clamping limit on the filter bag. Pinch the pulling piece 20 to tension the elastic band loop 19 to expand and deform, and take out the elastic band loop 19 from the second card slot 35 to release the stable connection between the filter bag and the cage. Remove the filter bag from the cage for replacement or cleaning.

[0065] Example 2, based on Example 1, proposes a preparation method for an integrated seamless dust removal filter bag. The method includes the following steps:

[0066] First, a first card slot 7 is cut and opened at the top of the rod body of the connecting rod 4, and a second card slot 35 is cut and opened on the rod body of the connecting rod 4. The top of the connecting rod 4 is welded to the inner ring surface of the top ring 3, and the bottom end of the connecting rod 4 is welded to the inner ring surface of the bottom plate 5, thus forming a basic cage frame.

[0067] The integrated seamless dust removal filter bag body 1 is sleeved on the basic cage frame from bottom to top, and the top of the integrated seamless dust removal filter bag body 1 is turned inward and inserted into the cage frame. Then, the pressure ring 8 is inserted into the top of the top ring 3, and the clamping ring 9 clamps a part of the inward-turned part inside the integrated seamless dust removal filter bag body 1 in the first card slot 7 to realize the top limit of the integrated seamless dust removal filter bag body 1. It is necessary to ensure that a telescopic length is reserved below the integrated seamless dust removal filter bag body 1 when it is limited by the elastic band 19.

[0068] After the elastic band 19 is expanded and deformed and sleeved on the outside of the integrated seamless dust removal filter bag body 1, the elastic band 19 is pushed and clamped into the second card slot 35. At this time, a part of the integrated seamless dust removal filter bag body 1 is clamped and limited in the second card slot 35.

[0069] Example 3, based on Example 1, proposes a device for preparing an integrated seamless dust removal filter bag. The device includes:

[0070] A fiber opening and mixing device for opening and mixing polyester fiber, polypropylene fiber, and glass fiber raw materials to form a uniform filter material slurry.

[0071] A filter material mold and forming device. Among them, the filter material mold is used to make the shape and size of the dust removal filter bag, and its flatness, perpendicularity, and cleanliness need to be ensured; the forming device pours the filter material slurry into the mold and performs multiple vibrations, flips, and drying to ensure the uniform distribution and firm fixation of the filter material.

[0072] A cutting and sewing device for cutting the filter material taken out of the mold to meet the specification requirements of the filter bag; the sewing device is used to sew the cut filter material into a complete filter bag.

[0073] A high-temperature shaping device for performing high-temperature shaping treatment on the sewn filter bag to improve its dimensional stability and heat resistance.

[0074] A quality inspection and sealing performance testing device for inspecting the appearance, size, and weight of the made dust removal filter bag to ensure its qualified quality; the sealing performance testing device is used to detect the sealing performance of the filter bag to ensure that it does not leak during use.

[0075] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated seamless dust removal filter bag, comprising an integrated seamless dust removal filter bag body (1), the integrated seamless dust removal filter bag body (1) is sleeved on a cage from bottom to top, and a Venturi tube (2) is inserted at the top of the cage, and it is characterized in that: The height of the integral seamless dust removal filter bag body (1) is greater than the height of the cage. The top end of the integral seamless dust removal filter bag body (1) is turned inward and inserted into the top end of the cage. A limiting member is inserted and connected to the top end of the cage for clamping and limiting the integral seamless dust removal filter bag body (1) after being turned inward. An active plug-in is provided between the limiting member and the cage. When the venturi tube (2) is inserted into the end of the cage, the limiting member connects the limiting frame and the cage. After the venturi tube (2) is withdrawn from the top of the cage, the limiting member rebounds and cancels the connection between the limiting member and the cage. An elastic clamping member is provided between the integral seamless dust removal filter bag body (1) and the cage for locally attaching the integral seamless dust removal filter bag body (1) to the cage for limiting; The cage includes a top ring (3), a connecting rod (4), a bottom plate (5) and a support ring (6). The top ring (3) is a "T"-shaped circular tube. There are multiple connecting rods (4). The multiple connecting rods (4) are arranged equidistantly and equally in size along the inner ring surface of the top ring (3). The top ends of the connecting rods (4) are fixed on the inner ring surface of the top ring (3). A space for installing the limiting member is reserved between the top surface of the connecting rod (4) and the top surface of the top ring (3). The bottom plate (5) is a circular frame structure. There are multiple support rings (6). The multiple support rings (6) are arranged along the long side of the connecting rod (4). The multiple connecting rods (4) are all fixed on the outer ring surface of the support ring (6); The limiting member includes a pressure ring (8), a plug rod (15) inserted into the inner ring surface of the pressure ring (8), and a clamping ring (9) inserted into the top end of the connecting rod (4). The pressure ring (8) is a "T"-shaped circular tube. A slider (10) is fixed to the bottom surface of the pressure ring (8). There are multiple sliders (10). The sliders (10) correspond to the connecting rods (4) one by one. The slider (10) is a "U"-shaped block. When the pressure ring (8) is inserted into the top ring (3) and slides down, the slider (10) slides along the connecting rod (4). A first clamping groove (7) is formed on the top surface of the connecting rod (4). The first clamping groove (7) is an arc-shaped groove. The bottom end of the clamping ring (9) is simultaneously inserted into the first clamping grooves (7) on the top surfaces of the multiple connecting rods (4). The inwardly turned part of the integral seamless dust removal filter bag body (1) is clamped in the first clamping grooves (7) by the clamping ring (9). The plug rod (15) passes through the pressure ring (8) and is inserted into the surface of the connecting rod (4).

2. The one-piece seamless dust removal filter bag according to claim 1, characterized in that: An installation groove (11) is formed on the inner ring surface of the pressure ring (8). The installation groove (11) is an annular groove. A rubber clamping ring (12) is fixed inside the installation groove (11). The inner ring diameter of the rubber clamping ring (12) is smaller than the inner ring diameter of the pressure ring (8). The pressure ring (8) is a circular ring plate with a "concave" cross-section. The rubber clamping ring (12) is clamped between the venturi tube (2) and the pressure ring (8) and generates elastic deformation. Through holes one (13) are formed on the surfaces of the rubber clamping ring (12) and the pressure ring (8). The plug rod (15) passes through the two groups of through holes one (13) and is inserted into a slot (14). The slot (14) is formed on the surface of the connecting rod (4).

3. The one-piece seamless dust removal filter bag according to claim 2, characterized in that: One end of the insertion rod (15) far away from the connecting rod (4) is integrally formed with a frustum block. A second through hole (16) is formed in the rod body of the insertion rod (15). A retaining strip (17) is inserted into the second through hole (16). The retaining strip (17) is fixed between the top surface and the bottom surface of the first through hole (13). A rubber connecting block (18) is fixed on the surface of the retaining strip (17). One end of the rubber connecting block (18) is fixed on the surface of the second through hole (16). When the pressing ring (8) pushes and inserts the insertion rod (15) into the insertion slot (14), the rubber connecting block (18) is stretched to generate elastic deformation. When the pressing ring (8) is removed from the top ring (3) and no longer blocks the insertion rod (15), the rubber connecting block (18) rebounds and resets to pull the insertion rod (15) out of the insertion slot (14).

4. The one-piece seamless dust removal filter bag according to claim 1, wherein: The elastic clamping member includes an elastic band loop (19) and a second clamping groove (35). The second clamping groove (35) is in the shape of an "Ω" groove. The second clamping groove (35) is formed in the rod body of the connecting rod (4). There are multiple second clamping grooves (35). The multiple second clamping grooves (35) are arranged and distributed at equal distances and of equal size along the rod body of the connecting rod (4). After the elastic band loop (19) is sleeved outside the multiple connecting rods (4) and the elastic band loop (19) is pushed into the second clamping groove (35), a part of the integrated seamless dust filter bag body (1) is clamped in the second clamping groove (35) by the elastic band loop (19), so as to realize the connection and limitation of the integrated seamless dust filter bag body (1) and the connecting rod (4).

5. The one-piece seamless dust removal filter bag according to claim 1, wherein: A dust cleaning mechanism is arranged inside the cage frame for regularly cleaning the integrated seamless dust filter bag body (1) from the inner side of the integrated seamless dust filter bag body (1).

6. The one-piece seamless dust removal filter bag according to claim 5, characterized in that: The dust cleaning mechanism includes a first lifting ring (26) and a second lifting ring (28). Reserved grooves (29) are formed on the outer ring surfaces of the first lifting ring (26) and the second lifting ring (28). The reserved grooves (29) are in the shape of a "U" groove and are matched with the connecting rod (4). The connecting rod (4) extends into the reserved grooves (29). Brush hairs (30) are fixed on the top and bottom surfaces of the first lifting ring (26) and the second lifting ring (28). The brush hairs (30) cover the top and bottom surfaces of the first lifting ring (26) and the second lifting ring (28). One end of the brush hair (30) abuts against the inner side of the integrated seamless dust removal filter bag body (1) and then the brush hair (30) is bent and deformed. A plurality of first traction rods (27) are fixed on the inner ring surface of the second lifting ring (28). The first traction rods (27) are in the shape of an "L" rod. The bottom ends of the first traction rods (27) are fixed on the rod body of the connecting pipe (25). One end of the connecting pipe (25) is fixed on the inner ring surface of the first lifting ring (26). The other end of the connecting pipe (25) is fixed on the outer wall of the wire sleeve (24). The wire sleeve (24) is sleeved and screwed on the rod body of the lead screw (23). The bottom end of the lead screw (23) is drivingly connected to the power output end of the servo motor (22). The servo motor (22) is fixed inside the mounting seat (21). The mounting seat (21) is in the shape of an inverted "T" - shaped cylinder. The bottom plate of the mounting seat (21) is fixed on the bottom surface of the bottom plate (5) by screws. A stop block (34) is fixed at the top end of the lead screw (23). A bearing (33) is sleeved on the top end of the lead screw (23). A plurality of second traction rods (32) are fixed on the outer ring of the bearing (33). One end of the second traction rod (32) is fixed with a connecting ring (31). The connecting ring (31) is fixed on the inner ring surface of the supporting ring (6). The first traction rod (27) passes through the connecting ring (31).

7. A method for preparing an integrated seamless dust removal filter bag according to any one of claims 1-6, characterized in that: The method includes the following steps: A first clamping groove (7) is cut and opened at the top end of the rod body of the connecting rod (4) in advance, and a second clamping groove (35) is cut and opened on the rod body of the connecting rod (4). The top of the connecting rod (4) is welded to the inner ring surface of the top ring (3), and the bottom end of the connecting rod (4) is welded to the inner ring surface of the bottom plate (5), thus forming a basic cage frame; The integrated seamless dust removal filter bag body (1) is sleeved on the basic cage frame from bottom to top, and the top of the integrated seamless dust removal filter bag body (1) is turned inside out and inserted into the cage frame. Then, the pressing ring (8) is inserted into the top of the top ring (3), and the clamping ring (9) clamps a part of the inside - turned part of the integrated seamless dust removal filter bag body (1) in the first clamping groove (7) to realize the top - limit of the integrated seamless dust removal filter bag body (1). It is necessary to ensure that a telescopic length is reserved below the integrated seamless dust removal filter bag body (1) when it is limited by the elastic band ring (19); After the elastic band ring (19) is expanded and deformed and sleeved on the outer side of the integrated seamless dust removal filter bag body (1), the elastic band ring (19) is pushed and clamped into the second clamping groove (35). At this time, a part of the integrated seamless dust removal filter bag body (1) is clamped and limited in the second clamping groove (35).

8. An apparatus for preparing the integrated seamless dust removal filter bag according to any one of claims 1-6, characterized in that: The device includes: Fiber opening and mixing equipment, which is used to open and mix raw materials of polyester fiber, polypropylene fiber and glass fiber to form a uniform filter slurry; Filter media mold and forming equipment. Among them, the filter media mold is used to make the shape and size of the dust removal filter bag, and its flatness, perpendicularity and cleanliness need to be ensured; the forming equipment pours the filter slurry into the mold and conducts multiple vibrations, flips and drying to ensure the uniform distribution and firm fixation of the filter media; Cutting and sewing equipment, which cuts the filter media taken out of the mold to meet the specification requirements of the filter bag; the sewing equipment is used to sew the cut filter media into a complete filter bag; High-temperature shaping equipment, which is used to conduct high-temperature shaping treatment on the sewn filter bag to improve its dimensional stability and heat resistance; Quality inspection and airtightness testing equipment, which inspects the appearance, size and weight of the made dust removal filter bag to ensure its qualified quality; the airtightness testing equipment is used to detect the airtight performance of the filter bag to ensure that it will not leak during use.

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