Integrated seamless dust removal filter bag as well as preparation method and device thereof

Abstract

The invention relates to the technical field of dust removal filter bags, in particular to an integrated seamless dust removal filter bag and a preparation method and device.The integrated seamless dust removal filter bag comprises an integrated seamless dust removal filter bag body, a cage frame is sleeved with the integrated seamless dust removal filter bag body from bottom to top, and a venturi tube is inserted into the top of the cage frame; the height of the integrated seamless dust removal filter bag body is larger than that of the cage frame, the top end of the integrated seamless dust removal filter bag body is turned inwards and inserted into the top end of the cage frame, and a limiting piece is inserted into the top end of the cage frame and used for clamping and limiting the integrated seamless dust removal filter bag body which is turned inwards; the filter bag cage has the beneficial effects that the stable connection of the filter bag and the cage frame is realized through the uniquely designed limiting pieces and elastic clamping pieces. The limiting piece can easily fix the inward turning part of the filter bag on the cage frame through the matching of the sliding block and the clamping groove, and a complicated fixing structure is not needed. Meanwhile, the elastic clamping piece utilizes the elastic deformation of the elastic band ring to locally attach the filter bag to the cage frame, so that the connection stability is further enhanced.

Description

Technical Field

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

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

[0003] Installation and fixing issues: When installing traditional dust filter bags, they often need to be installed on the cage frame through a complex fixing structure, which not only increases the difficulty of installation, but may also cause the filter bags to be damaged during installation. At the same time, the instability of the fixing structure may also cause the filter bags to loosen or fall off during use, affecting the dust removal effect.

[0004] Disassembly and replacement issues: Due to the complex fixing method of traditional dust filter bags, it is also difficult to disassemble and replace them. This not only increases maintenance costs, but may also cause damage to the filter bags due to improper disassembly.

[0005] Cleaning effect problem: Traditional dust removal filter bag cleaning methods usually rely on external air flow impact or mechanical vibration, but this method is often difficult to completely remove the dust on the surface of the filter bag, especially in the folds and corners of the filter bag. Dust easily accumulates and forms "dead corners", affecting the dust removal efficiency and the service life of the filter bag. Summary of the invention

[0006] The object of the present invention is to provide an integrated seamless dust filter bag, a preparation method and a device thereof, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated seamless dust filter bag, comprising an integrated seamless dust filter bag body, the integrated seamless dust filter bag body is sleeved on a cage frame from bottom to top, and a venturi is inserted at the top of the cage frame, the height of the integrated seamless dust filter bag body is greater than the height of the cage frame, the top of the integrated seamless dust filter bag body is turned inward and inserted into the top of the cage frame, and a limiting piece is inserted at the top of the cage frame for clamping and limiting the inverted integrated seamless dust filter bag body, a movable plug-in is provided between the limiting piece and the cage frame, and when the venturi is inserted into the end of the cage frame, the limiting piece connects the limiting frame and the cage frame, and after the venturi is pulled out from the top of the cage frame, the limiting piece rebounds to cancel the connection between the limiting piece and the cage frame, and an elastic clamp is provided between the integrated seamless dust filter bag body and the cage frame for partially attaching the integrated seamless dust filter bag body to the cage frame for limiting.

[0008] Preferably, the cage frame includes a top ring, a connecting rod, a bottom plate and a support ring, the top ring is a "T"-shaped circular tube, a plurality of connecting rods are provided, and the plurality of connecting rods are arranged and distributed at equal distances and sizes along the inner ring surface of the top ring, and the top ends of the connecting rods are fixed to the inner ring surface of the top ring, and space for installing a limit piece is reserved on the top surfaces of the connecting rods and the top surfaces of the top ring, the bottom plate is a circular frame structure, a plurality of support rings are provided, and the plurality of support rings are arranged and distributed along the long sides of the connecting rods, and the plurality of connecting rods are fixed on the outer ring surface of the support ring.

[0009] Preferably, the limiting member includes a pressing ring, an insert rod inserted into the inner ring surface of the pressing ring, and a clamping ring inserted into the top end of the connecting rod. The pressing ring is a "T"-shaped round tube. A slider is fixed to the bottom surface of the pressing ring. There are multiple sliders. The sliders correspond to the connecting rods one by one, and the sliders are in a "U"-shaped block. When the pressing ring is inserted into the top ring and slides down, the slider slides along the connecting rod. A groove is provided on the top surface of the connecting rod, and the groove is an arc-shaped groove. The bottom end of the clamping ring is simultaneously inserted into the grooves on the top surfaces of multiple connecting rods, and the inverted part of the bag body of the one-piece seamless dust filter bag is clamped in the groove, and the insert rod passes through the pressing ring and is inserted into the surface of the connecting rod.

[0010] Preferably, the inner ring surface of the pressure ring is provided with an embedding groove, which is an annular groove, and a rubber clamp ring is fixed inside the embedding groove. The inner ring diameter of the rubber clamp ring is smaller than the inner ring diameter of the pressure ring, and the pressure ring is a circular ring plate with a "concave"-shaped cross-section. The rubber clamp ring is clamped between the Venturi tube and the pressure ring to produce elastic deformation. The surfaces of the rubber clamp ring and the pressure ring are provided with through holes, and the insertion rod is inserted into the slot after passing through two groups of through holes. The slot is provided on the surface of the connecting rod.

[0011] Preferably, a truncated cone block is integrally formed at one end of the insertion rod away from the connecting rod, a second through-hole is opened on the rod body of the insertion rod, a baffle is inserted inside the second through-hole, the baffle is fixed between the top surface of the first through-hole and the bottom surface of the first through-hole, a rubber connecting block is fixed on the surface of the baffle, one end of the rubber connecting block is fixed on the surface of the second through-hole, when the pressure ring pushes the insertion rod into the slot, the rubber connecting block is stretched to produce elastic deformation, when the pressure ring is pulled out from the top ring and no longer blocks the insertion rod, the rubber connecting block rebounds and resets to pull the insertion rod out of the slot.

[0012] Preferably, the elastic clamp includes an elastic band and a second clamping groove, the second clamping groove is an "Ω"-shaped groove, the second clamping groove is opened on the rod body of the connecting rod, a plurality of second clamping grooves are provided, and the plurality of second clamping grooves are arranged and distributed along the rod body of the connecting rod at equal distances and in equal sizes. After the elastic band is sleeved on the outside of the plurality of connecting rods and the elastic band is pushed into the second clamping groove, a partial area of ​​the one-piece seamless dust filter bag body is clamped in the second clamping groove by the elastic band, thereby realizing the connection limit of the one-piece seamless dust filter bag body and the connecting rod.

[0013] Preferably, a cleaning mechanism is provided inside the cage frame for regularly cleaning the one-piece seamless dust filter bag body from the inner side of the one-piece seamless dust filter bag body.

[0014] Preferably, the dust cleaning mechanism comprises a lifting ring 1 and a lifting ring 2, the outer ring surfaces of the lifting ring 1 and the lifting ring 2 are provided with a reserved groove, the reserved groove is a "U"-shaped groove, the reserved groove matches the connecting rod, the connecting rod extends into the reserved groove, the top and bottom surfaces of the lifting ring 1 and the lifting ring 2 are fixed with bristles, the bristles cover the top and bottom surfaces of the lifting ring 1 and the lifting ring 2, one end of the bristles is pressed against the inner side of the bag body of the integrated seamless dust filter bag, and the bristles are bent and deformed, and the inner ring surface of the lifting ring 2 is fixed with a plurality of traction rods 1, the traction rod 1 is an "L"-shaped rod, and the bottom end of the traction rod 1 is fixed to the rod body of the connecting pipe. One end of the connecting tube is fixed on the inner ring surface of the lifting ring 1, and the other end of the connecting tube is fixed on the outer wall of the wire sleeve. The wire sleeve is sleeved and screwed on the rod body of the screw rod. The bottom end of the screw rod is transmission-connected to the power output end of the servo motor. The servo motor is fixed inside the mounting seat. The mounting seat is an inverted "T"-shaped cylinder. The bottom plate of the mounting seat is fixed to the bottom surface of the bottom plate by screws. A stopper is fixed on the top of the screw rod. A bearing is sleeved on the top of the screw rod. A plurality of traction rods 2 are fixed on the outer ring of the bearing. A connecting ring is fixed on one end of the traction rod 2. The connecting ring is fixed on the inner ring surface of the support ring. The traction rod 1 passes through the connecting ring.

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

[0016] A first card slot is cut and opened on the top of the rod body of the connecting rod in advance, and a second card slot 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 of the connecting rod is welded to the inner ring surface of the bottom plate, so as to form a basic cage frame;

[0017] Put the integrated seamless dust filter bag body on the basic cage frame from bottom to top, and insert the top of the integrated seamless dust filter bag body into the cage frame, then insert the pressure ring into the top of the top ring, and the clamping ring clamps the inverted part of the integrated seamless dust filter bag body in the card slot 1 to limit the top of the integrated seamless dust filter bag body. It is necessary to ensure that the expansion length of the integrated seamless dust filter bag body is reserved under the integrated seamless dust filter bag body when it is limited by the elastic band ring;

[0018] After the elastic band is expanded and deformed and sleeved on the outside of the one-piece seamless dust filter bag body, the elastic band is pushed to be clamped into the second card slot. At this time, part of the one-piece seamless dust filter bag body is clamped and limited in the second card slot.

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

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

[0021] Filter material mold and molding equipment, where the filter material mold is used to make the shape and size of the dust filter bag, and its flatness, verticality and cleanliness must be guaranteed; the molding equipment pours the filter material slurry into the mold and performs multiple vibrations, flipping and drying to ensure the uniform distribution and firm fixation of the filter material;

[0022] The cutting and sewing equipment is used to cut the filter material taken out from the mold to meet the specification requirements of the filter bag; the sewing equipment is used to sew the cut filter material into a complete filter bag;

[0023] High temperature shaping equipment, used to perform high temperature shaping treatment on the sewn filter bags to improve their dimensional stability and heat resistance;

[0024] The quality inspection and sealing test equipment is used to inspect the appearance, size and weight of the manufactured dust filter bags to ensure their quality. The sealing test equipment is used to test the sealing performance of the filter bags to ensure that they will not leak during use.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The one-piece seamless dust filter bag, preparation method and device thereof proposed in the present invention realize a stable connection between the filter bag and the cage frame by designing a unique stopper and elastic clamp. The stopper can easily fix the inverted part of the filter bag on the cage frame through the cooperation of the slider and the clamping groove without the need for a complicated fixing structure. At the same time, the elastic clamp utilizes the elastic deformation of the elastic band to partially attach the filter bag to the cage frame, further enhancing the stability of the connection. This design not only simplifies the installation process, but also reduces the risk of damage to the filter bag during the installation process.

[0027] The limiter and the elastic clip are designed with convenient disassembly methods. The limiter is connected and disconnected with the cage frame through the elastic deformation of the rubber connecting block, while the elastic clip is fixed and released with the cage frame by expansion and rebound. This design makes the filter bag easier and faster to remove and replace, reducing maintenance costs and time.

[0028] A dust cleaning mechanism is set inside the cage frame. The servo motor drives the screw rod and the screw sleeve to achieve the reciprocating lifting and lowering motion of the lifting ring. The bristles on the lifting ring can expand the filter bag from the inside to the outside and clean its inner wall, effectively removing 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a top view of the structure of the present invention;

[0031] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0032] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0033] Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0034] Figure 6 for Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0035] Figure 7 This is a schematic diagram of the cage structure of the present invention;

[0036] Figure 8 for Figure 7 A magnified schematic diagram of the structure at D in the middle;

[0037] Fig. 9 It is a schematic diagram of the structure of the pressure ring of the present invention;

[0038] Fig.10 This is a schematic diagram of the connection structure of the lifting ring 1 and the lifting ring 2 of the present invention;

[0039] Fig.11 This is a schematic diagram of the connection structure between the support ring and the bearing of the present invention;

[0040] Fig.12 It is a schematic diagram of the rod insertion structure of the present invention.

[0041] In the figure: an integrated seamless dust filter bag body 1, a venturi tube 2, a top ring 3, a connecting rod 4, a bottom plate 5, a support ring 6, a slot 1 7, a pressure ring 8, a clamping ring 9, a slider 10, an embedded groove 11, a rubber clamping ring 12, a perforation 1 13, a slot 14, a plug 15, a perforation 2 16, a baffle 17, a rubber connecting block 18, an elastic band 19, a pulling piece 20, a mounting seat 21, a servo motor 22, a screw rod 23, a thread sleeve 24, a connecting pipe 25, a lifting ring 1 26, a traction rod 1 27, a lifting ring 2 28, a reserved groove 29, bristles 30, a connecting ring 31, a traction rod 2 32, a bearing 33, a block 34, and a slot 2 35. DETAILED DESCRIPTION

[0042] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to 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 of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] For example, see Figures 1 to 12 The present invention provides a technical solution: an integrated seamless dust filter bag, comprising an integrated seamless dust filter bag body 1, the integrated seamless dust filter bag body 1 is sleeved on the cage frame from bottom to top, and a venturi tube 2 is inserted at the top of the cage frame. The height of the integrated seamless dust filter bag body 1 is greater than the height of the cage frame, and the top of the integrated seamless dust filter bag body 1 is turned inward and inserted into the top of the cage frame, and a limiting piece is inserted at the top of the cage frame for clamping and limiting the inverted integrated seamless dust filter bag body 1, and a movable plug-in is provided between the limiting piece and the cage frame, and when the venturi tube 2 is inserted into the end of the cage frame, the limiting piece connects the limiting frame and the cage frame, and after the venturi tube 2 is pulled out from the top of the cage frame, the limiting piece rebounds to cancel the connection between the limiting piece and the cage frame, and an elastic clamp is provided between the integrated seamless dust filter bag body 1 and the cage frame for partially attaching the integrated seamless dust filter bag body 1 to the cage frame for limiting.

[0044] The cage frame 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 and distributed at equal distances and sizes along the inner ring surface of the top ring 3, and the top of the connecting rod 4 is fixed to the inner ring surface of the top ring 3, and the top surface of the connecting rod 4 and the top surface of the top ring 3 reserve space for installing limit members. The bottom plate 5 is a circular frame structure. There are multiple support rings 6. The multiple support rings 6 are arranged and distributed along the long sides of the connecting rod 4, and the multiple connecting rods 4 are fixed on the outer ring surface of the support ring 6; the cage frame is used to expand the one-piece seamless dust filter bag body 1 from the inner side of the one-piece seamless dust filter bag body 1 to ensure that the one-piece seamless dust filter bag body 1 is expanded, and the top of the cage frame is used to assemble with the venturi tube 2 to facilitate the gas transportation after the dust filter bag is installed in the dust collector.

[0045] The limiter comprises a pressing ring 8, an insert rod 15 inserted into the inner ring surface of the pressing ring 8, and a clamping ring 9 inserted into the top of the connecting rod 4. The pressing ring 8 is a "T"-shaped round tube. A slider 10 is fixed to the bottom surface of the pressing ring 8. There are multiple sliders 10. The sliders 10 correspond to the connecting rod 4 one by one, and the sliders 10 are "U"-shaped blocks. When the pressing ring 8 is inserted into the top ring 3 and slides down, the slider 10 slides along the connecting rod 4. A slot 7 is provided on the top surface of the connecting rod 4, and the slot 7 is in the shape of an arc. The bottom end of the clamping ring 9 is simultaneously inserted into the card slot 7 on the top surface of multiple connecting rods 4, and the inverted part of the integrated seamless dust filter bag body 1 is clamped in the card slot 7 by the clamping ring 9, and the insertion rod 15 penetrates the pressure ring 8 and is inserted into the surface of the connecting rod 4; the inner ring surface of the pressure ring 8 is provided with an embedding groove 11, and the embedding groove 11 is an annular groove, and a rubber clamping ring 12 is fixed inside the embedding groove 11, and the inner ring diameter of the rubber clamping ring 12 is smaller than the inner ring diameter of the pressure ring 8, and the pressure ring 8 is The cross section is a circular ring plate in the shape of a "concave" character. The rubber clamp ring 12 is clamped between the venturi tube 2 and the pressure ring 8 to produce elastic deformation. The surfaces of the rubber clamp ring 12 and the pressure ring 8 are provided with a perforation 13. The insertion rod 15 passes through two sets of perforations 13 and is inserted into the slot 14. The slot 14 is provided on the surface of the connecting rod 4. The end of the insertion rod 15 away from the connecting rod 4 is integrally formed with a truncated cone block. The rod body of the insertion rod 15 is provided with a perforation 2 16. The inner insertion hole 16 is inserted into the inner insertion hole 16. A baffle 17 is connected, and the baffle 17 is fixed between the top surface of the through hole 13 and the bottom surface of the through hole 13. A rubber connecting block 18 is fixed on the surface of the baffle 17, and one end of the rubber connecting block 18 is fixed on the surface of the through hole 2 16. When the pressure ring 8 pushes the insertion rod 15 to insert into the slot 14, the rubber connecting block 18 is stretched to produce elastic deformation. When the pressure ring 8 is pulled out 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 slot 14.

[0046] When in use, after the integrated seamless dust filter bag body 1 is sleeved on the cage frame from bottom to top, the part of the integrated seamless dust filter bag body 1 that is higher than the cage frame is turned inward and inserted into the top ring 3, the inverted part covers the top of the connecting rod 4, and then the pressing ring 8 is inserted into the top ring 3. When inserting, align the slider 10 and the connecting rod 4, and while pushing the pressing ring 8 down, the slider 10 slides along the connecting rod 4 until the top plate of the pressing ring 8 overlaps the connecting rod 4. At this time, the clamping ring 9 partially clamps the inverted part of the integrated seamless dust filter bag body 1 in the card groove 7 to prevent the integrated seamless dust filter bag body 1 from falling off the cage frame; at this time, the rubber connecting block 18 is in the initial state, that is, the truncated cone block at one end of the insertion rod 15 is in the inner ring mouth of the pressing ring 8, and the other end of the insertion rod 15 is retracted into the perforation 13. When the installation When the cage frame and the venturi tube 2 of the integrated seamless dust filter bag body 1 are sleeved, when the venturi tube 2 is inserted into the cage frame, the venturi tube 2 pushes the insertion rod 15 along the truncated cone block, and the insertion rod 15 slides along the perforation 13, and the insertion rod 15 tensions the rubber connecting block 18 to produce elastic deformation until the other end of the insertion rod 15 is inserted into the slot 14, thereby reinforcing the connection between the pressure ring 8 and the connecting rod 4, and realizing the connection between the venturi tube 2 and the cage frame; when the cage frame 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 and pulls the insertion rod 15 to reset. At this time, the other end of the insertion rod 15 is pulled out of the slot 14, thereby canceling the limit between the pressure ring 8 and the connecting rod 4, so that it is convenient to directly pull the pressure ring 8 off the top ring 3, and then disassemble, replace or clean the integrated seamless dust filter bag body 1.

[0047] The elastic clamp includes an elastic band ring 19 and a second clamping groove 35. The second clamping groove 35 is an "Ω"-shaped groove. The second clamping groove 35 is opened on 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 sizes along the rod body of the connecting rod 4. After the elastic band ring 19 is sleeved on the outer sides of the multiple connecting rods 4, the elastic band ring 19 is pushed into the second clamping groove 35. A partial area of ​​the one-piece seamless dust filter bag body 1 is clamped in the second clamping groove 35 by the elastic band ring 19, so as to realize the connection and limiting of the one-piece seamless dust filter bag body 1 and the connecting rod 4; before installing the pressure ring 8, the elastic band ring 19 is first expanded, and the expanded elastic band ring 19 is sleeved on the one-piece seamless dust filter bag body 1. The elastic band ring 1 9 rebounds and resets, and pushes the elastic band 19 to partially push the one-piece seamless dust filter bag body 1 into the second card slot 35, so that a card position is formed between the one-piece seamless dust filter bag body 1 and the connecting rod 4, and the one-piece seamless dust filter bag body 1 and the connecting rod 4 are firmly connected. After multiple sets of elastic bands 19 are pushed into the corresponding second card slots 35, the top of the one-piece seamless dust filter bag body 1 is reserved with a length for inward turning. It should be noted that the height of the support ring 6 on the rod body of the connecting rod 4 is consistent with the distribution height of the second card slot 35, and the outer ring surface of the elastic band 19 is symmetrically fixed with two pulling pieces 20. When removing the elastic band 19, pinch the pulling piece 20 with your fingers to pull the elastic band 19 to expand and deform.

[0048] A cleaning mechanism is provided 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; the cleaning mechanism comprises a lifting ring 1 26 and a lifting ring 28, the outer ring surfaces of the lifting ring 1 26 and the lifting ring 28 are provided with a reserved groove 29, the reserved groove 29 is a "U"-shaped groove, the reserved groove 29 matches the connecting rod 4, the connecting rod 4 extends into the reserved groove 29, the top and bottom surfaces of the lifting ring 1 26 and the lifting ring 28 are fixed with bristles 30, the bristles 30 are all over the top and bottom surfaces of the lifting ring 1 26 and the lifting ring 28, one end of the bristles 30 abuts against the inner side of the integrated seamless dust filter bag body 1 and the bristles 30 are bent and deformed, the inner ring surface of the lifting ring 28 is fixed with a plurality of traction rods 1 27, the traction rods 1 27 are "L"-shaped rods, and the traction rods 1 27 are "L"-shaped rods. The bottom end of the guide rod 27 is fixed on the rod body of the connecting tube 25, one end of the connecting tube 25 is fixed on the inner ring surface of the lifting ring 26, and the other end of the connecting tube 25 is fixed on the outer wall of the thread sleeve 24. The thread sleeve 24 is sleeved and screwed on the rod body of the screw rod 23. The bottom end of the screw rod 23 is transmission-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 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 stopper 34 is fixed on the top end of the screw rod 23. A bearing 33 is sleeved on the top end of the screw rod 23. A plurality of traction rods 2 32 are fixed on the outer ring of the bearing 33. A connecting ring 31 is fixed on one end of the traction rod 22. The connecting ring 31 is fixed on the inner ring surface of the support ring 6, and the traction rod 27 passes through the connecting ring 31.

[0049] When in use, the dust cleaning mechanism is an optional mechanism. The dust cleaning mechanism can be installed on the inner side of the cage frame as needed. During installation, the bottom plate of the mounting seat 21 is fixed to the top surface of the bottom plate of the bottom plate 5 by screws. Three support rings 6 are provided. The lifting ring 1 26 is between the bottom support ring 6 and the middle support ring 6, and the lifting ring 28 is between the middle support ring 6 and the top support ring 6. When the silk sleeve 24 is at the bottom end of the screw rod 23, the lifting ring 1 26 is close to the bottom support ring 6, and the lifting ring 28 is close to the middle support ring 6. The servo motor 22 is a bidirectional motor. After the switch of the servo motor 22 is triggered, the servo motor 22 first drives the screw rod 23 to rotate forward, driving the silk sleeve 24 to climb along the screw rod 23. In this process, the lifting ring 1 26 and the lifting ring 2 28 climb synchronously, and the bristles 30 expand outward from the inner side of the one-piece seamless dust filter bag body 1. The integrated seamless dust filter bag body 1 is used to clean the inner wall of the integrated seamless dust filter bag body 1. The bristles 30 pass through the part of the integrated seamless dust filter bag body 1. Since the bristles 30 expand the integrated seamless dust filter bag body 1 outward, it is convenient to shake off the dust adhered to the outer wall of the integrated seamless dust filter bag body 1; when the lifting ring 1 26 climbs to the support ring 6 near the middle, the lifting ring 28 is close to the top support ring 6, triggering the pre-programmed control of the servo motor 22, so that the servo motor 22 drives the screw rod 23 to reverse, so that the lifting ring 1 26 and the lifting ring 2 28 descend along the connecting rod 4, so that the lifting ring 1 26 and the lifting ring 2 28 are driven to lift and reciprocate multiple times, which is convenient for cleaning the dust on the surface of the integrated seamless dust filter bag body 1; the bearing 33 cooperates with the traction rod 2 32 to prevent the top of the screw rod 23 from swinging.

[0050] The detailed usage process is as follows:

[0051] 1. Installation and fixing principle

[0052] Cage assembly: The cage consists 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 a circular frame structure, and the support ring 6 is arranged and fixed along the long side of the connecting rod 4.

[0053] Filter bag installation: The one-piece seamless dust filter bag body 1 is mounted on the cage frame from bottom to top. The part of the filter bag that is higher than the cage frame is turned inward and inserted into the top ring 3, covering the top of the connecting rod 4.

[0054] The limiter is fixed: the pressure 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 pressure ring 8 overlaps the connecting rod 4. The clamping ring 9 clamps the inverted part of the filter bag in the card groove 7 on the top surface of the connecting rod 4. The insertion rod 15 passes through the pressure ring 8 and the connecting rod 4, and the elastic deformation of the rubber connecting block 18 realizes the stable insertion of the insertion rod 15 in the slot 14.

[0055] Elastic clamp limiter: The elastic band ring 19 is sleeved on the filter bag and rebounds to reset, pushing the filter bag partially into the clamping groove 2 35 on the connecting rod 4 to achieve a stable connection between the filter bag and the cage.

[0056] Installation of the venturi tube: When the venturi tube 2 is inserted into the cage frame, the insertion rod 15 is pushed along the truncated cone block, and the insertion rod 15 slides and tensions the rubber connecting block 18 until the other end of the insertion rod 15 is inserted into the slot 14, thereby reinforcing the connection between the pressure ring 8 and the connecting rod 4.

[0057] 2. Working principle of dust cleaning mechanism

[0058] Structural composition: The dust cleaning mechanism includes a lifting ring 1 26 , a lifting ring 2 28 , bristles 30 , a connecting pipe 25 , a threaded sleeve 24 , a screw rod 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 base plate 5 by screws, three support rings 6 are provided, the lifting ring 1 26 is located between the bottom support ring 6 and the middle support ring 6, and the lifting ring 2 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 screw 23 to rotate forward, driving the wire sleeve 24 to climb along the screw 23, and the lifting ring 1 26 and the lifting ring 2 28 to climb synchronously. The bristles 30 expand the filter bag from the inside of the filter bag to the outside and clean the inner wall. When the bristles 30 pass through the filter bag, they expand the filter bag outward to facilitate the shaking off of the dust adhering to the outer wall of the filter bag. When the lifting ring 1 26 climbs to near the middle support ring 6, the servo motor 22 is triggered to pre-programmed control, the screw 23 is reversed, and the lifting ring 1 26 and the lifting ring 2 28 are lowered. The servo motor 22 drives the lifting ring 1 26 and the lifting ring 2 28 to rise and fall back and forth multiple times to thoroughly clean the dust on the surface of the filter bag.

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

[0062] 3. Disassembly and replacement principle

[0063] Venturi tube disassembly: After the cage frame is separated from the Venturi tube 2, the insertion rod 15 is no longer blocked, the rubber connecting block 18 rebounds and pulls the insertion rod 15 to reset, and is pulled out of the slot 14, canceling the limit of 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 of the filter bag. Pinch the pulling piece 20 to stretch the elastic band 19 to expand and deform it, remove the elastic band 19 from the second card slot 35, and release the stable connection between the filter bag and the cage. Remove the filter bag from the cage for replacement or cleaning.

[0065] Embodiment 2, based on embodiment 1, proposes a method for preparing an integrated seamless dust filter bag, the method comprising the following steps:

[0066] A first card slot 7 is cut and opened on the top of the rod body of the connecting rod 4 in advance, 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 of the connecting rod 4 is welded to the inner ring surface of the bottom plate 5, so as to form a basic cage frame;

[0067] The one-piece seamless dust filter bag body 1 is placed on the base cage from bottom to top, and the top of the one-piece seamless dust filter bag body 1 is turned inside out and inserted into the cage frame, and then the pressure ring 8 is inserted into the top of the top ring 3, and the clamping ring 9 partially clamps the inside of the one-piece seamless dust filter bag body 1 in the card slot 7 to limit the top of the one-piece seamless dust filter bag body 1. It is necessary to ensure that the elastic length of the one-piece seamless dust filter bag body 1 is reserved below the one-piece seamless dust filter bag body 1 when it is limited by the elastic band ring 19;

[0068] After the elastic band 19 is expanded and deformed and sleeved on the outer side of the one-piece seamless dust filter bag body 1 , the elastic band 19 is pushed and clamped into the second clamping groove 35 . At this time, part of the one-piece seamless dust filter bag body 1 is clamped and limited in the second clamping groove 35 .

[0069] Embodiment 3, based on Embodiment 1, proposes a device for preparing an integrated seamless dust filter bag, the device comprising:

[0070] Fiber opening and mixing equipment, used to open and mix polyester fiber, polypropylene fiber, glass fiber raw materials to form a uniform filter material slurry;

[0071] Filter material mold and molding equipment, where the filter material mold is used to make the shape and size of the dust filter bag, and its flatness, verticality and cleanliness must be guaranteed; the molding equipment pours the filter material slurry into the mold and performs multiple vibrations, flipping and drying to ensure the uniform distribution and firm fixation of the filter material;

[0072] The cutting and sewing equipment is used to cut the filter material taken out from the mold to meet the specification requirements of the filter bag; the sewing equipment is used to sew the cut filter material into a complete filter bag;

[0073] High temperature shaping equipment, used to perform high temperature shaping treatment on the sewn filter bags to improve their dimensional stability and heat resistance;

[0074] The quality inspection and sealing test equipment is used to inspect the appearance, size and weight of the manufactured dust filter bags to ensure their quality. The sealing test equipment is used to test the sealing performance of the filter bags to ensure that they will not leak during use.

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

Claims

1. An integrated seamless dust filter bag, comprising an integrated seamless dust filter bag body (1), the integrated seamless dust filter bag body (1) is sleeved on a cage frame from bottom to top, a venturi tube (2) is plugged into the top of the cage frame, and the characteristics are: The height of the one-piece seamless dust filter bag body (1) is greater than the height of the cage frame. The top end of the one-piece seamless dust filter bag body (1) is turned inward and inserted into the top end of the cage frame. A limiting piece is inserted into the top end of the cage frame to clamp and limit the one-piece seamless dust filter bag body (1) after turning inward. A movable plug-in is provided between the limiting piece and the cage frame. When the venturi (2) is inserted into the end of the cage frame, the limiting piece connects the limiting frame and the cage frame. After the venturi (2) is withdrawn from the top of the cage frame, the limiting piece rebounds to cancel the connection between the limiting piece and the cage frame. An elastic clamp is provided between the one-piece seamless dust filter bag body (1) and the cage frame to partially adhere the one-piece seamless dust filter bag body (1) to the cage frame for limiting the position.

2. The one-piece seamless dust filter bag according to claim 1, characterized in that: The cage frame comprises 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; a plurality of connecting rods (4) are provided; the plurality of connecting rods (4) are arranged and distributed at equal distances and in equal sizes 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); and a space for installing a stopper is reserved between the top surfaces of the connecting rods (4) and the top surfaces of the top ring (3); the bottom plate (5) is a circular frame structure; a plurality of support rings (6) are provided; the plurality of support rings (6) are arranged and distributed along the long sides of the connecting rods (4); and the plurality of connecting rods (4) are all fixed to the outer ring surface of the support ring (6).

3. The one-piece seamless dust filter bag according to claim 2, characterized in that: The limiting member comprises a pressure ring (8), an insert 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 round tube. A slider (10) is fixed to the bottom surface of the pressure ring (8). A plurality of sliders (10) are provided. The sliders (10) correspond to the connecting rods (4) one by one, and the sliders (10) are "U"-shaped blocks. When the pressure ring (8) is inserted into the top ring (3) and slides down, the sliders (10) are The block (10) slides along the connecting rod (4), the top surface of the connecting rod (4) is provided with a slot (7), the slot (7) is an arc-shaped slot, the bottom end of the clamping ring (9) is simultaneously inserted into the slots (7) on the top surfaces of multiple connecting rods (4), and the inverted part of the one-piece seamless dust filter bag body (1) is clamped in the slot (7) by the clamping ring (9), and the insertion rod (15) passes through the pressure ring (8) and is inserted into the surface of the connecting rod (4).

4. The one-piece seamless dust filter bag according to claim 3, characterized in that: The inner ring surface of the pressure ring (8) is provided with an embedding groove (11), which is an annular groove. A rubber clamp ring (12) is fixed inside the embedding groove (11). The inner ring diameter of the rubber clamp 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"-shaped cross section. The rubber clamp ring (12) is clamped between the venturi tube (2) and the pressure ring (8) to generate elastic deformation. The surfaces of the rubber clamp ring (12) and the pressure ring (8) are both provided with perforations (13). The insertion rod (15) passes through two groups of perforations (13) and is then inserted into a slot (14). The slot (14) is provided on the surface of the connecting rod (4).

5. The one-piece seamless dust filter bag according to claim 4, characterized in that: The end of the insertion rod (15) away from the connecting rod (4) is integrally formed with a truncated cone block, and the rod body of the insertion rod (15) is provided with a second through hole (16), and a blocking bar (17) is inserted inside the second through hole (16), and the blocking bar (17) is fixed between the top surface of the first through hole (13) and the bottom surface of the first through hole (13), and a rubber connecting block (18) is fixed on the surface of the blocking bar (17), and one end of the rubber connecting block (18) is fixed on the surface of the second through hole (16), and when the pressure ring (8) pushes the insertion rod (15) to be inserted into the slot (14), the rubber connecting block (18) is stretched to produce elastic deformation, and when the pressure ring (8) is pulled away 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 slot (14).

6. The one-piece seamless dust filter bag according to claim 2, characterized in that: The elastic clamping member comprises an elastic band ring (19) and a second clamping groove (35); the second clamping groove (35) is an "Ω"-shaped groove; the second clamping groove (35) is arranged on the rod body of the connecting rod (4); a plurality of second clamping grooves (35) are provided; the plurality of second clamping grooves (35) are arranged and distributed along the rod body of the connecting rod (4) at equal distances and in equal sizes; after the elastic band ring (19) is sleeved on the outer sides of the plurality of connecting rods (4), the elastic band ring (19) is pushed into the second clamping groove (35), and a part of the integrated seamless dust filter bag body (1) is clamped in the second clamping groove (35) by the elastic band ring (19), thereby realizing the connection limit between the integrated seamless dust filter bag body (1) and the connecting rod (4).

7. The one-piece seamless dust filter bag according to claim 2, characterized in that: A dust cleaning mechanism is provided inside the cage frame, which is used to regularly clean the integrated seamless dust filter bag body (1) from the inner side of the integrated seamless dust filter bag body (1).

8. The one-piece seamless dust filter bag according to claim 7, characterized in that: The dust cleaning mechanism comprises a lifting ring 1 (26) and a lifting ring 2 (28). The outer ring surfaces of the lifting ring 1 (26) and the lifting ring 2 (28) are both provided with a reserved groove (29). The reserved groove (29) is a "U"-shaped groove. The reserved groove (29) matches the connecting rod (4). The connecting rod (4) extends into the reserved groove (29). Brushes (30) are fixed on the top and bottom surfaces of the lifting ring 1 (26) and the lifting ring 2 (28). The bristles (30) are spread all over the top and bottom surfaces of the lifting ring 1 (26) and the lifting ring 2 (28). After one end of the bristles (30) is pressed against the inner side of the integrated seamless dust filter bag body (1), the bristles (30) are bent and deformed. A plurality of traction rods 1 (27) are fixed to the inner ring surface of the lifting ring 2 (28). The traction rods 1 (27) are "L"-shaped rods. The bottom ends of the traction rods 1 (27) are fixed to the rod body of the connecting pipe (25). The connecting pipe One end of the connecting tube (25) is fixed on the inner ring surface of the lifting ring (26), and the other end of the connecting tube (25) is fixed on the outer wall of the threaded sleeve (24). The threaded sleeve (24) is sleeved and screwed on the rod body of the screw rod (23). The bottom end of the screw rod (23) is transmission-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 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 stopper (34) is fixed on the top end of the screw rod (23). A bearing (33) is sleeved on the top end of the screw rod (23). A plurality of traction rods (32) are fixed on the outer ring of the bearing (33). A connecting ring (31) is fixed on one end of the traction rod (32). The connecting ring (31) is fixed on the inner ring surface of the support ring (6). The traction rod (27) passes through the connecting ring (31).

9. A method for preparing the integrated seamless dust filter bag according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: A first card slot (7) is cut and opened on the top end of the rod body of the connecting rod (4) in advance, and a second card slot (35) is cut and opened on the rod body of the connecting rod (4), the top end 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), so as to form a basic cage frame; The one-piece seamless dust filter bag body (1) is placed on the base cage from bottom to top, and the top of the one-piece seamless dust filter bag body (1) is turned inward and inserted into the cage, and then the pressure ring (8) is inserted into the top of the top ring (3), and the clamping ring (9) partially clamps the inner inverted part of the one-piece seamless dust filter bag body (1) in the clamping groove (7) to limit the top of the one-piece seamless dust filter bag body (1). It is necessary to ensure that the bottom of the one-piece seamless dust filter bag body (1) is reserved with a telescopic length when it is limited by the elastic band ring (19); After the elastic band (19) is expanded and deformed to be sleeved on the outer side of the one-piece seamless dust filter bag body (1), the elastic band (19) is pushed to be clamped into the second clamping groove (35), and at this time, a part of the one-piece seamless dust filter bag body (1) is clamped and limited in the second clamping groove (35).

10. A device for preparing the one-piece seamless dust filter bag according to any one of claims 1 to 8, characterized in that: The device comprises: Fiber opening and mixing equipment, used to open and mix polyester fiber, polypropylene fiber, glass fiber raw materials to form a uniform filter material slurry; Filter material mold and molding equipment, where the filter material mold is used to make the shape and size of the dust filter bag, and its flatness, verticality and cleanliness must be guaranteed; the molding equipment pours the filter material slurry into the mold and performs multiple vibrations, flipping and drying to ensure the uniform distribution and firm fixation of the filter material; The cutting and sewing equipment is used to cut the filter material taken out from the mold to meet the specification requirements of the filter bag; the sewing equipment is used to sew the cut filter material into a complete filter bag; High temperature shaping equipment, used to perform high temperature shaping treatment on the sewn filter bags to improve their dimensional stability and heat resistance; The quality inspection and sealing test equipment is used to inspect the appearance, size and weight of the manufactured dust filter bags to ensure their quality. The sealing test equipment is used to test the sealing performance of the filter bags to ensure that they will not leak during use.

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