Production apparatus for bag filter and control method thereof

Abstract

The application relates to the technical field of filter manufacturing, and particularly provides a production equipment of a bag filter and a control method thereof, which comprises the following steps: a standing roller of a partition strip folding assembly turns over a partition strip of partition strip cloth, first standing plates and second standing plates are arranged on the two sides of the turned-over partition strip respectively, and the first standing plates and the second standing plates are arranged in a staggered mode in a second direction; the first standing plates and the second standing plates are all arranged as adsorption surfaces on the side surfaces close to the edges of the partition strip; negative pressure holes are arranged on the adsorption surfaces to adsorb the edges of the partition strip; an edge folding strip folds the adsorbed edges to make the folded edges contact the first cloth and the second cloth at corresponding positions; a partition strip welding head of a partition strip welding assembly is used for welding; a filter bag welding assembly is used for welding the two sides and the bottom of a filter bag to generate the bag filter. Thus, the problem that the production of the bag filter in the related art mainly depends on manual work and the production equipment cannot manufacture conical filter bags, resulting in low production efficiency, is solved.

Description

Technical Field

[0001] This invention relates to the field of filter manufacturing technology, and in particular to a production equipment for a bag filter and a control method thereof. Background Technology

[0002] Non-woven bag filters are widely used in industrial dust removal and central air conditioning air purification. The filter bag has multiple sets of partition strips inside to support the filter material, preventing the filter bag from being compressed and stuck together, thus avoiding blockage of the ventilation channel. This is a key structure to ensure the filtration air volume and reduce operating resistance.

[0003] Existing filter bag production equipment cannot simultaneously tension and convey the upper and lower filter bag fabrics and the spacer fabrics. It also lacks an integrated spacer folding component that integrates vertical flipping of the spacer, double-sided negative pressure adsorption positioning, and movable adaptive folding functions. The spacer forming process lacks effective constraints, resulting in poor edge bonding accuracy and frequent welding defects. The production process requires a lot of manual correction and positioning, which not only leads to low production efficiency but also makes it difficult to guarantee the consistency of the structural dimensions and sealing performance of the finished filter bags. It also makes it impossible to stably mass-produce low-resistance high-end filter bags with conical spacers. Summary of the Invention

[0004] The present invention provides a bag filter production equipment and control method, which at least solves the problem in the related art that the manufacturing of bag filters mainly relies on manual labor and the production equipment cannot manufacture conical filter bags, resulting in low production efficiency.

[0005] This invention provides a production device for a bag filter, comprising: a feeding and tensioning mechanism and a welding and forming mechanism; the feeding and tensioning mechanism is used to tension a first fabric and a second fabric forming the bag filter, as well as a spacer fabric for setting separators in the bag filter, and then transmit them along a first direction to the welding and forming mechanism; the welding and forming mechanism includes a spacer folding assembly, a spacer welding assembly, and a filter bag welding assembly arranged sequentially along the first direction; the spacer folding assembly includes a standing roller, a standing plate, and a folding strip; the standing roller is used to flip the separators of the spacer fabric so that the separators are in a second direction perpendicular to the first fabric and the second fabric; the standing plate includes a first standing plate and a second standing plate, the first standing plate... The first and second upright plates are respectively disposed on both sides of the flipped separator strip and staggered in the second direction. Both the first and second upright plates have an adsorption surface on the side near the edge of the separator strip. The adsorption surface is provided with negative pressure holes for adsorbing the edge of the separator strip in the second direction after it is erected. The folded edge strip is movably mounted on the upright plate for pressing and folding the adsorbed edge so that the pressed edge contacts the first and second fabrics at the corresponding positions. The separator strip welding assembly includes a separator strip welding head, which cooperates with the upright plate to weld the edge in contact with the first and second fabrics to the first and second fabrics. The filter bag welding assembly is used to weld the sides and bottom of the filter bag to form a bag filter.

[0006] As an optional solution, the bag filter has a conical cross-sectional shape along the first direction, the size of which gradually decreases along the first direction, and multiple partition strips are provided in the third direction; the first upright plate and the second upright plate are respectively mounted on corresponding connecting rods, and the connecting rods drive the first upright plate and / or the second upright plate to move in the third direction; multiple sets of upright plates are provided on the connecting rods, the number of sets of upright plates is the same as the number of pre-made partition strips on the partition strip fabric, and the number of sets of partition strips is the same as the number of partition strips required for the bag filter.

[0007] As an optional solution, an adjustment component is also included, comprising a tilt adjustment component and a distance adjustment component; the tilt adjustment component is disposed at one end of the first upright plate and the second upright plate, and is used to adjust the tilt of the first upright plate or the second upright plate so that the adsorption surface of the first upright plate and the second upright plate matches the edge of the spacer fabric; the distance adjustment component includes a first slider disposed on the first upright plate and a second slider disposed on the second upright plate, both the first slider and the second slider being mounted on a corresponding connecting rod, the connecting rod being movable in the third direction.

[0008] As an optional solution, the spacer welding head includes a first spacer welding head and a second spacer welding head; the first spacer welding head is located on the other side of the first upright plate where the folded edge strip is set, and matches with the corresponding first welding pressure block, for welding the edge of the spacer strip folded by the folded edge strip to the first fabric; the second spacer welding head is located on the other side of the second upright plate where the folded edge strip is set, and matches with the corresponding second welding pressure block, for welding the edge of the spacer strip folded by the folded edge strip to the second fabric; both the first and second spacer welding heads are installed by L-shaped arms, which are used to avoid the turning rollers of the first and second fabrics, and the turning rollers are set along a first direction at the free ends of the first and second upright plates to turn the first and second fabrics so that the moving direction of the first and second fabrics matches the edge of the spacer strip after folding.

[0009] As an optional embodiment, the filter bag welding assembly includes a side welding assembly and a bottom welding assembly. The side welding assembly includes side welding heads and side welding blocks positioned opposite each other on both sides of the first or second fabric. The side welding heads and side welding blocks are positioned opposite each other to weld the sides of the first and second fabrics. A side cutting blade is also provided at a corresponding position on each side welding head for cutting off excess material in a second direction. The bottom welding assembly includes a pressing assembly and a bottom welding head. The pressing assembly includes a first clamping member and a second clamping member. The first clamping member, the bottom welding head, and the second clamping member are arranged along a first direction. The first clamping member is used to fix the filter bag to be welded at the corresponding position after welding is completed on both sides of the first or second fabric, so as to place the bottom of the filter bag to be welded in the working position of the bottom welding head. The bottom welding head is arranged between the first and second clamping members and cooperates with the corresponding bottom welding block to weld the bottom of the filter bag. The second clamping member is used to press and move the adjacent welded filter bags after the bottom of the filter bag is welded, so as to separate the two adjacent filter bags.

[0010] As an optional solution, the feeding and tensioning mechanism includes a first fabric roller, a second fabric roller, and a pre-formed spacer roller. The first fabric roller is used to transfer the wound first fabric to the welding and forming mechanism through a first tensioning assembly. The second fabric roller is used to transfer the wound second fabric to the welding and forming mechanism through a second tensioning assembly. The pre-formed spacer roller is used to transfer the wound spacer fabric to the welding and forming mechanism through a third tensioning assembly. The spacer fabric consists of multiple pre-cut pre-formed spacer strips, each pre-formed spacer strip including multiple spacer strips connected end-to-end and transition portions disposed between adjacent spacer strips. The portion where the spacer strip connects to the transition portion is provided with a tear line for subsequent tensile tearing separation. The first tensioning assembly, the second tensioning assembly, and the third tensioning assembly each include three tensioning rollers for turning and tensioning the corresponding fabric.

[0011] As an optional solution, the production equipment also includes a spacer pre-cutting mechanism, which includes a roller cutter and a matching winding roller assembly. The roller cutter performs incomplete cutting of the spacer fabric according to the corresponding spacer shape, retaining continuous connection points in the spacer fabric. The roller cutter is also equipped with a positioning target printing unit to print positioning marks on the surface of the spacer fabric. The matching winding roller assembly is used to wind the spacer fabric pre-cut by the roller cutter into a roll, and the roll is conveyed to the feeding and tensioning mechanism to complete the feeding of the spacer fabric.

[0012] As an optional solution, the production equipment also includes a finished product conveying and stacking mechanism, which is located at the discharge end of the welding and forming mechanism; the finished product conveying and stacking mechanism includes a belt conveyor and a lifting and pressing push rod, which moves up and down to automatically and neatly stack the torn and separated finished filter bags.

[0013] As an optional solution, the production equipment also includes a waste collection mechanism, including a partition waste collection mechanism and a side waste collection mechanism; the partition waste collection mechanism is located on one side of the partition folding assembly and is used to collect waste generated from partition pre-cutting and tearing; the side waste collection mechanism is located on one side of the filter bag welding assembly and is used to collect fabric scraps generated from side trimming.

[0014] This invention also provides a control method for a bag filter production equipment, applied to the aforementioned bag filter production equipment, comprising: tensioning a first fabric, a second fabric, and a spacer strip fabric of a separator strip via a feeding tensioning mechanism, and then conveying them along a first direction to a welding and forming mechanism; flipping the spacer strip of the separator strip fabric via an upright roller of the welding and forming mechanism so that the spacer strip is in a second direction perpendicular to the first fabric and the second fabric; conveying the spacer strip between a first upright plate and a second upright plate of the welding and forming mechanism, controlling the movement of the folded edge strip, pressing the edge of the spacer strip onto the adsorption surface of the first upright plate and the second upright plate, and adsorbing it; conveying the first fabric and the second fabric to both sides of the spacer strip, contacting the edge of the spacer strip pressed onto the adsorption surface; welding the edge to the first fabric and the second fabric via a spacer strip welding assembly; and sequentially completing the welding of both sides of the filter bag and the bottom sealing welding via a filter bag welding assembly to obtain a bag filter.

[0015] The bag filter production equipment provided by this invention uses a feeding and tensioning mechanism to tension the first fabric, the second fabric, and the spacer fabric with separators, and then conveys them to a welding and forming mechanism. The spacer folding assembly, with its upright rollers, upright plates, and folding strips, flips the spacer into a vertical position. The edges of the spacer are then pressed and positioned by adsorption. The first and second fabrics are then attached to both sides of the spacer. The spacer welding assembly completes the welding of the spacer to the two layers of fabric. Finally, the filter bag welding assembly completes the sealing welding of the filter bag's sides and bottom. This invention solves the technical problems of difficult alignment of the spacer assembly, difficulty in maintaining the vertical position, easy deviation of the welding position, and easy deviation and wrinkling of the multi-layer fabric feeding in existing bag filter production. It replaces manual assembly of the spacer with mechanical folding and adsorption positioning, stably maintaining the vertical position of the spacer, ensuring welding position accuracy, and achieving continuous synchronous feeding of multi-layer fabric, thus improving the automation level and finished product consistency of the bag filter. Attached Figure Description

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the embodiments will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the structure of a bag filter production equipment according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of some production equipment according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the feeding and tensioning mechanism according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the connection between the feeding tensioning mechanism and the welding forming mechanism in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of a partial welding forming mechanism without the installation structure, according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the installation structure of the upright plate, the folded edge strip, and the welded joint of the spacer strip according to an embodiment of the present invention.

[0023] Figure 7 yes Figure 6 A structural diagram from another perspective.

[0024] Figure 8 This is a schematic diagram of the action structure of the upright plate and the folding strip in an embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the filter bag welding assembly according to an embodiment of the present invention.

[0026] Figure 10 This is a schematic diagram of a filter bag welding assembly with the installation structure removed, according to an embodiment of the present invention.

[0027] Figure 11 This is a schematic diagram of the bottom welding assembly according to an embodiment of the present invention.

[0028] Figure 12 This is a schematic diagram of the bottom welding assembly of the mounting structure removed according to an embodiment of the present invention.

[0029] Figure 13 This is a schematic diagram of a finished product conveying and stacking mechanism according to an embodiment of the present invention.

[0030] Figure 14 This is a schematic diagram of the pre-cutting mechanism for the spacer strip according to an embodiment of the present invention.

[0031] Figure 15 This is a flowchart of a control method for a bag filter production equipment according to an embodiment of the present invention.

[0032] The attached figures are labeled as follows.

[0033] 1. Feeding and tensioning mechanism; 11. First fabric roller; 111. First fabric; 12. Second fabric roller; 121. Second fabric; 13. Prefabricated spacer roller; 131. Spacer fabric; 1312. Separator strip; 14. First tensioning assembly; 15. Second tensioning assembly; 16. Third tensioning assembly; 2. Welding forming mechanism; 21. Spacer folding assembly; 211. Erecting roller; 212. Erecting plate; 2121. First erecting plate; 2122. Second erecting plate; 2123. Adsorption surface; 2124. Negative pressure hole; 213. Folded edge strip; 22. Spacer bar welding assembly; 221. Spacer bar welding head; 2211. First spacer bar welding head; 2212. Second spacer bar welding head; 2213. First welding pressure block; 2214. Second welding pressure block; 222. L-shaped arm; 23. Filter bag welding assembly; 231. Side welding assembly; 2311. Side welding head; 2312. Side welding clamping block; 2313. Side cutting blade; 232. Bottom welding assembly; 2321. First clamping component; 2322. Second clamping component; 2323. Bottom welding head; 2324. Bottom welding clamping block; 3. Rack; 4. Adjustment component; 41. Tilt adjustment component; 42. Distance adjustment component; 421. First slider; 422. Second slider; 423. Connecting rod; 5. Spacer pre-cutting mechanism; 51. Roller cutter; 52. Winding roller assembly; 6. Finished product conveying and stacking mechanism; 61. Belt conveyor line; 62. Lifting and pressing push rod; 7. Waste collection mechanism; 71. Partition waste collection mechanism; 72. Side waste collection mechanism; 8. Tear line cutter. Detailed Implementation

[0034] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0035] like Figures 1 to 14 As shown, this embodiment provides a bag filter production equipment, including: a feeding and tensioning mechanism 1 and a welding and forming mechanism 2.

[0036] The feeding and tensioning mechanism 1 is used to tension the first fabric 111 and the second fabric 121 forming the bag filter, as well as the spacer fabric 131 used to set the spacer strip 1312 in the bag filter, and then transmit them to the welding and forming mechanism 2 in the first direction.

[0037] The welding forming mechanism 2 includes a spacer folding assembly 21, a spacer welding assembly 22, and a filter bag welding assembly 23 arranged sequentially along a first direction.

[0038] The partition strip folding assembly 21 includes a standing roller 211, a standing plate 212, and a folding strip 213; the standing roller 211 is used to fold the partition strip 1312 of the partition strip fabric 131 so that the partition strip 1312 is in a second direction perpendicular to the first fabric 111 and the second fabric 121.

[0039] The erecting plate 212 includes a first erecting plate 2121 and a second erecting plate 2122. The first erecting plate 2121 and the second erecting plate 2122 are respectively disposed on both sides of the flipped separator strip 1312 and are staggered in the second direction. The first erecting plate 2121 and the second erecting plate 2122 are both configured as adsorption surfaces 2123 on the side surface near the edge of the separator strip 1312. The adsorption surfaces 2123 are provided with negative pressure holes 2124 for adsorbing the edge of the erected separator strip 1312 in the second direction. The folded edge strip 213 is movably mounted on the erecting plate 212 for pressing and folding the adsorbed edge so that the pressed edge contacts the first fabric 111 and the second fabric 121 at the corresponding positions.

[0040] The spacer welding assembly 22 includes a spacer welding head 221, which works in conjunction with the upright plate 212 to weld the edges that contact the first fabric 111 and the second fabric 121 onto the first fabric 111 and the second fabric 121.

[0041] The filter bag welding assembly 23 is used to weld the sides and bottom of the filter bag to form a bag filter.

[0042] like Figures 1 to 2 As shown, the bag filter production equipment in this embodiment consists of two main modules: a feeding and tensioning mechanism 1 and a welding and forming mechanism 2, both mounted on a frame 3. The first fabric 111, the second fabric 121, and the spacer fabric 131 with separator strips 1312 are all continuously fed and processed along a unified first direction. The aforementioned first direction is... Figure 2 In the left and right directions, the first fabric 111 and the second fabric 121 will turn as needed, but overall they still move in the first direction.

[0043] When the device is running, such as Figure 3 and Figure 4 As shown, the feeding and tensioning mechanism 1 simultaneously carries three types of rolls of material, and applies tension to the first fabric 111, the second fabric 121, and the spacer fabric 131 simultaneously to complete the overall tensioning, so that the conveying speed and tension of the three types of materials are consistent, and after being stacked, they are fed into the downstream welding and forming mechanism 2 at a uniform speed.

[0044] like Figure 4As shown, before entering the welding forming mechanism, a tear line can be pre-cut on the first and second fabrics by the tear line cutter 8 to form a tear line, which facilitates the subsequent bottom welding by asynchronous pressing of the first pressing member 2321 and the second pressing member 2322 to achieve tear separation of the continuous bag filter.

[0045] The tear line can be set according to the running position of the spacer fabric 131. When the separator strip 1312 of the spacer fabric 131 reaches the preset position, the tear line cutter 8 is controlled to simultaneously create tear lines on the first fabric 111 and the second fabric 121. Specifically, positioning marks can be set on the spacer fabric, and the running position of the separator strip 1312 can be obtained by detecting the marks.

[0046] like Figures 5 to 8 As shown, the welding forming mechanism 2 is sequentially arranged with a partition bar folding assembly 21, a partition bar welding assembly 22, and a filter bag welding assembly 23 along the material conveying path. The material first enters the partition bar folding assembly 21. Inside the assembly, the upright roller 211 contacts the flat-laid partition bar 1312 and applies a lateral folding force, adjusting the partition bar 1312 to a second direction perpendicular to the two layers of filter cloth. The first upright plate 2121 and the second upright plate 2122, staggered along the second direction on both sides, simultaneously approach the partition bar 1312. The second direction can be perpendicular to... Figure 2 The orientation of the paper.

[0047] The upright rollers 211 are arranged adjacent to each other, and the adjacent upright rollers 211 form an inlet gap. The dividing strips 1312 of the spacer fabric 131 pass through the inlet gap and are laterally moved by the upright rollers 211 to complete the flipping and inlet from the flat position to the second direction upright position.

[0048] like Figure 8 As shown, the adsorption surface 2123 on the upright plate 212 has several arrayed negative pressure holes 2124. The negative pressure holes 2124 penetrate the plate body of the upright plate 212. A vacuum channel is set inside the upright plate 212. The vacuum channel is connected to a vacuum generating pipeline. The negative pressure holes 2124 are connected to an external negative pressure gas source through the internal vacuum channel, thereby forming an adsorption force on the adsorption surface 2123 to adsorb and fix the edge of the upright separator 1312.

[0049] The folded edge strip 213 is connected to the drive cylinder through a linkage transmission mechanism. The folded edge strip 213 is a long strip pressing structure, which is arranged in pairs above the first upright plate 2121 and the second upright plate 2122. The drive cylinder drives the linkage transmission mechanism to make an angular motion, driving the folded edge strip 213 to swing and press down towards the adsorption surface 2123, completing the pressing and folding action of the edge of the separator strip 1312. After the pressing and folding is completed, the folded edge strip 213 is lifted back to its original position to avoid the material being conveyed along the first direction.

[0050] The adsorption surfaces 2123 of the two upright plates 212 generate vacuum suction through the negative pressure holes 2124, firmly adsorbing the two sides of the dividing strip 1312 to complete the positioning. Then, the movable folded edge strip 213 installed on the upright plate 212 is fed down and pressed towards the dividing strip 1312, pressing the edge of the dividing strip 1312 to adhere between the first fabric 111 and the second fabric 121.

[0051] The material that has completed the folding and positioning continues to feed into the spacer welding assembly 22. The spacer welding head 221, relying on the positioning reference of the upright plate 212, performs welding on the bonding area, fixing the two edges of the spacer 1312 onto the first fabric 111 and the second fabric 121 respectively.

[0052] After all the separator strips 1312 are welded, the material is conveyed to the filter bag welding assembly 23. This assembly welds and seals the two sides of the filter material and the bottom sealing position of the bag in sequence, and finally obtains a complete bag filter. The material is continuously conveyed throughout the entire process, and the actions of each component are connected in sequence. No manual intervention is required to adjust the position of the cloth and the separator strips 1312.

[0053] By relying on the differentiated and innovative structures of the feeding and tensioning mechanism 1 and the welding and forming mechanism 2, the existing equipment's process defects are solved from multiple dimensions, including material conveying, separator strip shaping, welding support, and production line process. The underlying functional logic and output effect of each structure are clearly distinguished.

[0054] The feeding and tensioning mechanism 1 achieves synchronous tension control of three types of fabrics, which is different from the traditional equipment design of separate unwinding and mismatched tension. It eliminates the material deviation caused by fabric slack and stretching from the source, and provides a flat and stable processing base for the spacer folding component 21, directly reducing the deviation of the shape and size of batch products.

[0055] The partition strip folding assembly 21 adopts a composite positioning structure with active reversal of the upright roller 211 and negative pressure clamping of the first upright plate 2121 and the second upright plate 2122. It abandons the old solution of passive limiting with simple baffles. The upright roller 211 forcibly switches the spatial posture of the partition strip 1312. The negative pressure hole 2124 on the adsorption surface 2123 locks all displacement degrees of freedom of the partition strip 1312 from both directions. It can not only prevent ordinary equal-width partition strips 1312 from tilting and sliding, but also adaptively fix tapered partition strips 1312 with gradually changing width. Structurally, it solves the core problem of unrestrained forming and easy deformation of the partition strip 1312.

[0056] The folded edge strip 213 is formed in conjunction with the negative pressure adsorption structure. First, the negative pressure hole 2124 fixes the separator strip 1312 to eliminate the bending and sliding allowance. Then, the folded edge strip 213 is precisely pressed and folded to ensure that the edge of the separator strip 1312 fits the first fabric 111 and the second fabric 121 without gaps. This provides a stable welding contact surface for the welded joint 221 of the separator strip, greatly reducing the defect rate of incomplete welding, missing welding, and weld misalignment.

[0057] The erecting plate 212 and the partition bar welding assembly 22 are adjacent to each other and share the same positioning reference. Unlike the traditional mode of separating the folding and welding stations and requiring manual secondary correction after transportation, the partition bar 1312 is directly welded under the continuous negative pressure constraint, eliminating the need for manual straightening and reducing manpower input.

[0058] The welding and forming mechanism 2, which is linearly arranged along the first direction, connects the entire process of dividing strip shaping, internal support welding, and filter bag sealing, realizing fully automated continuous production. It reduces material loss and size dispersion caused by process transfer. Overall, the synergistic effect of the whole structure can simultaneously achieve multiple technical effects such as improved processing accuracy, stable welding quality, reduced labor costs, and compatibility with the production of multiple specifications of dividing strips 1312.

[0059] As an optional embodiment, the bag filter has a tapered cross-sectional shape along the first direction, with the size of the tapered shape gradually decreasing along the first direction. Multiple separators 1312 are provided in the third direction; the third direction can be... Figure 2 Up and down direction.

[0060] The first upright plate 2121 and the second upright plate 2122 are respectively installed on the corresponding connecting rod 423, and the connecting rod 423 drives the first upright plate 2121 and / or the second upright plate 2122 to move in a third direction.

[0061] Multiple sets of upright plates 212 are provided on the connecting rod 423. The number of sets of upright plates 212 is the same as the number of sets of prefabricated separator strips 1312 on the separator fabric 131. The number of sets of separator strips 1312 is the same as the number of separator strips 1312 required for the bag filter.

[0062] like Figure 5 As shown, the cross-section of the finished bag filter gradually narrows along the first material feeding direction, and multiple sets of dividing strips 1312 are arranged inside along the third transverse direction. The first upright plate 2121 and the second upright plate 2122 are both assembled on the connecting rod 423, which can drive the single or double upright plates to move and adjust along the third direction.

[0063] Multiple sets of upright plates 212 are fitted on a single connecting rod 423. The number of upright plates, the number of prefabricated partition strips 131, and the number of partition strips required for the filter bag correspond one-to-one. During operation, all partition strips can simultaneously complete vertical adsorption and edge folding.

[0064] Traditional equipment has a fixed upright plate position, which can only clamp parallel dividers of equal width. It cannot adapt to the gradually changing width of the tapered dividers, and is prone to adsorption detachment and positioning misalignment during processing. In addition, traditional tooling can only process single dividers in multiple batches. When changing specifications, the entire tooling needs to be replaced, which is cumbersome to debug and has low production efficiency.

[0065] This embodiment can stably process low-resistance conical filter bags. The negative pressure structure fits the edge of the gradient separator strip throughout the process, and the positioning and folding accuracy are not affected by changes in the size of the cone. Multiple sets of separator strips are formed simultaneously, simplifying the process and improving the overall production cycle.

[0066] By adjusting the horizontal spacing of the upright plates using connecting rods, the equipment can be adapted to filter bags of different widths and with different numbers of separators without changing tooling, making it more versatile and producing a more uniform and stable filtration resistance in the finished product.

[0067] As an optional embodiment, it also includes an adjustment component 4, which includes a tilt adjustment component 41 and a distance adjustment component 42.

[0068] The tilt adjustment component 41 is disposed at one end of the first upright plate 2121 and the second upright plate 2122, and is used to adjust the tilt of the first upright plate 2121 or the second upright plate 2122 so that the adsorption surface 2123 of the first upright plate 2121 and the second upright plate 2122 matches the edge of the spacer fabric 131.

[0069] The distance adjustment assembly 42 includes a first slider 421 disposed on the first upright plate 2121 and a second slider 422 disposed on the second upright plate 2122. Both the first slider 421 and the second slider 422 are mounted on a corresponding connecting rod 423, which is movable in the third direction.

[0070] like Figures 5 to 7 As shown, the adjustment component 4 is divided into two parts: the tilt adjustment component 41 and the distance adjustment component 42. The tilt adjustment component 41 is installed at the ends of the first upright plate 2121 and the second upright plate 2122, and can adjust the tilt angle of the two upright plates so that the adsorption surface 2123 fits the edge contour of the spacer fabric 131.

[0071] The tilt adjustment component 41 is disposed at the end of the connecting rod 423. The tilt adjustment component 41 includes an angle adjustment hinge joint. The first upright plate 2121 and the second upright plate 2122 are respectively hinged to the first slider 421 and the second slider 422 through the angle adjustment hinge joint. The tilt adjustment component 41 can drive the upright plate 212 to rotate around the hinge fulcrum, thereby changing the pitch angle of the adsorption surface 2123 so that the adsorption surface 2123 can conform to the contour of the inclined side of the conical separator 1312.

[0072] The distance adjustment component 42 includes a first slider 421 and a second slider 422. The two sliders are respectively installed on the connecting rod 423. The connecting rod 423 can slide along a third direction to change the clamping distance between the first upright plate 2121 and the second upright plate 2122.

[0073] The connecting rod 423 of the distance adjustment component 42 is provided with a linear guide rail extending along a third direction. The first slider 421 and the second slider 422 are slidably assembled on the linear guide rail of the connecting rod 423. The slider can slide independently along the linear guide rail, driving the first upright plate 2121 and the second upright plate 2122 to change the clamping distance between them. The slider is equipped with a locking component, and the position is locked and fixed after adjustment.

[0074] Multiple sets of partition strip folding units, consisting of a first upright plate 2121, a second upright plate 2122, and a folding strip 213, can be assembled side by side on the connecting rod 423. The multiple sets of partition strip folding units adjust their positions synchronously along the third direction with the first slider 421 and the second slider 422 to adapt to the synchronous processing of multiple partition strips 1312 of the filter bag.

[0075] The tilt adjustment component 41 is adapted to the tapered dividing strip with a gradually changing bevel, ensuring that the adsorption surface 2123 is fully fitted and that the negative pressure positioning is stable and prevents material from falling off; the distance adjustment component 42 adjusts the clamping width through the slider and the connecting rod 423, and is compatible with dividing strips of different thicknesses and spacings; the filter bag specifications can be quickly switched without disassembling the tooling, reducing the time for changeover and debugging and improving the versatility of the equipment.

[0076] As an optional embodiment, the spacer welding head 221 includes a first spacer welding head 2211 and a second spacer welding head 2212.

[0077] The first partition bar welding head 2211 is located on the other side of the first upright plate 2121 where the folded edge strip 213 is located, and matches the corresponding first welding pressure block 2213, for welding the edge of the partition bar 1312 folded by the folded edge strip 213 onto the first fabric 111.

[0078] The second partition bar welding head 2212 is located on the other side of the second upright plate 2122 where the folded edge strip 213 is located, and matches the corresponding second welding pressure block 2214, for welding the edge of the partition bar 1312 folded by the folded edge strip 213 onto the second fabric 121.

[0079] The first spacer welding head 2211 and the second spacer welding head 2212 are both installed via L-shaped arms 222. The L-shaped arms 222 are used to avoid the turning rollers of the first fabric 111 and the second fabric 121. The turning rollers are set along the first direction at the free ends of the first upright plate 2121 and the second upright plate 2122 to turn the first fabric 111 and the second fabric 121 so that the moving direction of the first fabric 111 and the second fabric 121 matches the edge of the spacer strip 1312 after it is folded.

[0080] The spacer welding head 221 is designed as a split dual-station unit, consisting of a first spacer welding head 2211 and a second spacer welding head 2212. The first spacer welding head 2211, in conjunction with the first welding pressure block 2213, is positioned on the side of the first upright plate 2121 away from the folded edge strip 213, specifically for welding one side of the spacer strip 1312 to the first fabric 111.

[0081] The second partition bar welding head 2212, together with the second welding pressure block 2214, is arranged on the side of the second upright plate 2122 away from the folded edge strip 213, and is used to weld the other side of the partition bar 1312 to the second fabric 121.

[0082] The L-shaped arm 222 is an L-shaped bending bracket. One end of the L-shaped arm 222 is fixedly installed with the spacer welding head 221, and the other end is laterally avoided by the steering roller, so that the spacer welding head is arranged on the discharge side of the upright plate 212 away from the folded edge strip 213. Cables and cooling air passages can be arranged inside the L-shaped arm 222 to provide power supply and cooling passages for the spacer welding head.

[0083] The two welding heads are installed by mounting an L-shaped arm 222. The L-shaped arm 222 can avoid the fabric guide rollers arranged at the free end of the upright plate and along the first direction. The guide rollers change the feeding angle of the first fabric 111 and the second fabric 121, so that the travel path of the two layers of fabric is aligned with the edge of the folded separator strip 1312, and the upper and lower welding heads complete double-sided fusion simultaneously.

[0084] The first welding block 2213 and the second welding block 2214 are respectively arranged on the opposite side of the first spacer welding head 2211 and the second spacer welding head 2212, and the surface of the welding block is provided with a wear-resistant welding anvil surface. During the welding operation, the spacer welding head 221 and the corresponding welding block are clamped together, and the folded edge of the partition strip 1312 together with the first fabric 111 / second fabric 121 are pressed in the middle for welding.

[0085] The steering roller is arranged at the material free output end of the upright plate 212. The axis of the steering roller is perpendicular to the first direction. The first fabric 111 and the second fabric 121 are guided by the steering roller to change the pitch angle of the fabric, so that the contact surface of the first fabric 111 and the second fabric 121 is kept parallel and attached to the edge of the folded separator strip 1312, eliminating the interlayer gap between the fabric and the separator strip.

[0086] The double welding heads, together with the corresponding pressure blocks, can simultaneously apply pressure to weld the folded edges on both sides of the separator strip independently. The two sides of the separator strip 1312 are firmly fused to the upper and lower filter cloths respectively, with uniform welding strength, avoiding single-sided detachment. The L-shaped arm forms a space avoidance structure, which does not interfere with the installation of the steering roller. The fabric can be precisely adjusted in direction by relying on the steering roller, and the fabric travel angle matches the folded edge contour.

[0087] As an optional embodiment, the filter bag welding assembly 23 includes a side welding assembly 231 and a bottom welding assembly 232.

[0088] The side welding assembly 231 includes a side welding head 2311 and a side welding pressure block 2312 disposed opposite to both sides of the first fabric 111 or the second fabric 121. The side welding head 2311 and the side welding pressure block 2312 are disposed opposite to each other to weld the two sides of the first fabric 111 and the second fabric 121. A side cutting blade 2313 is also disposed at the corresponding position of the side welding head 2311 for cutting off the excess material in the second direction.

[0089] The bottom welding assembly 232 includes a pressure breaking assembly and a bottom welding head 2323. The pressure breaking assembly includes a first clamping member 2321 and a second clamping member 2322. The first clamping member 2321, the bottom welding head 2323 and the second clamping member 2322 are arranged along a first direction. The first clamping member 2321 is used to fix the filter bag to be welded at the corresponding position after welding is completed on both sides of the first fabric 111 or the second fabric 121, so as to place the bottom of the filter bag to be welded in the working position of the bottom welding head 2323.

[0090] The bottom welding head 2323 is located between the first clamping member 2321 and the second clamping member 2322, and cooperates with the corresponding bottom welding block 2324 to weld the bottom of the filter bag.

[0091] The second clamping member 2322 is used to clamp and move adjacent welded filter bags after the bottom of the filter bag is welded, so as to separate the two adjacent filter bags.

[0092] The filter bag welding assembly 23 is divided into a side welding assembly 231 and a bottom welding assembly 232. The side welding assembly 231 consists of a pair of side welding heads 2311 and side welding blocks 2312 arranged opposite each other. The two are located on the left and right sides of the first fabric 111 and the second fabric 121 after being stacked, respectively, and the side sealing welding of the two layers of fabric is completed by pressing them together.

[0093] The side welding head 2311 is equipped with a side cutting blade 2313, which simultaneously cuts off excess fabric scraps in the second direction during welding. The fabric scraps can be wound and recycled by the side waste collection mechanism 72.

[0094] like Figure 9 and Figure 10As shown, the side welding head 2311 and the side welding clamping block 2312 are installed in an opposing manner, respectively arranged on the upper and lower sides of the first fabric 111 and the second fabric 121 after being stacked. The side welding head 2311 and the side welding clamping block 2312 are equipped with a vertical drive cylinder. During the welding operation, the cylinder drives the two to close towards each other and clamp the two layers of fabric to complete the side heat sealing welding. After the welding is completed, the cylinder is lifted and reset to avoid the continuous conveying of the fabric along the first direction.

[0095] The side cutting blade 2313 is integrated on the discharge side of the side welding head 2311 and operates synchronously with the side welding head 2311. The side cutting blade 2313 is a shearing blade assembly, including a moving blade and a fixed blade. While welding the side, it cuts off the excess scrap material extending beyond the weld seam on both sides of the fabric in the second direction. The cut-off scrap material falls downwards, and a scrap material collection structure can be installed below the equipment.

[0096] Multiple sets of guide conveyor rollers are set in front and behind the side welding assembly 231. The guide conveyor rollers clamp and lift the stacked first fabric 111 and second fabric 121 to ensure that the fabric remains taut and flat when it enters the welding area, prevent the fabric from wrinkling, and ensure the straightness of the side weld.

[0097] The side welding head 2311 and the side welding pressure block 2312 can be adjusted in the second direction to adapt to the side sealing processing of filter bags of different widths.

[0098] The bottom welding assembly 232 includes a pressure-breaking assembly and a bottom welding head 2323. The pressure-breaking assembly includes a first clamping member 2321 and a second clamping member 2322 arranged sequentially along a first direction. After the side welding is completed, the first clamping member 2321 clamps and fixes the fabric, positioning the bottom of the filter bag to be processed into the working area of ​​the bottom welding head 2323.

[0099] The bottom welding head 2323 is arranged between the first clamping member 2321 and the second clamping member 2322, and cooperates with the bottom welding block 2324 to complete the bottom sealing welding of the filter bag.

[0100] After the bottom welding is completed, the second clamping component 2322 clamps the already welded finished filter bag and pulls it to move, realizing the separation of adjacent filter bags in front and behind, and obtaining an independent finished bag filter.

[0101] like Figure 11 and Figure 12 As shown, the first clamping component 2321 is a pair of friction roller assemblies, each composed of multiple parallel friction belts. After the fabric is conveyed to the correct position, the upper and lower rollers close together to clamp the first fabric 111 and the second fabric 121, locking the fabric position by the friction of the roller surfaces and limiting the fabric movement under traction during welding. After the welding process is completed, the rollers are lifted, allowing the material to continue feeding in the first direction.

[0102] The bottom welding head 2323 is arranged vertically, and the bottom welding pressure block 2324 is located directly below the bottom welding head 2323, with the two facing each other vertically. During operation, the bottom welding head 2323 is fed downwards and cooperates with the bottom welding pressure block 2324 to clamp the double-layer fabric, completing the horizontal sealing welding of the bottom of the filter bag.

[0103] The second clamping component 2322 is a sliding clamping and conveying module, consisting of upper and lower clamping belts / clamping rollers and a linear sliding module. After the bottom of the filter bag is welded, the clamping components of the second clamping component 2322 clamp the formed filter bag body. The linear module drives the second clamping component 2322 to move forward along the first direction, pulling and separating the current finished filter bag from the continuous fabric behind it. After separation, the clamping components are released, the finished filter bag is conveyed to the downstream discharge station, and the second clamping component 2322 resets, waiting for the next work cycle.

[0104] The first clamping component 2321, the bottom welding head 2323, and the second clamping component 2322 are arranged sequentially along the first direction, and the three are linked in sequence: the first clamping component 2321 locks the fabric, the bottom welding head 2323 performs bottom sealing welding, and the second clamping component 2322 clamps and pulls the filter bag to separate it. The whole set of actions is cyclically coordinated with the continuous material feeding rhythm.

[0105] The side welding assembly 231 integrates the side welding and the side cutting knife 2313, completing welding and cutting off the excess material in one go, reducing the number of workstations, avoiding positional deviations caused by multiple material handling, and ensuring that the filter bag side dimensions are regular.

[0106] The first clamping component 2321 clamps and positions the fabric before welding, restricting the fabric from moving around, ensuring the accuracy of the bottom weld position of the filter bag, and improving the sealing performance of the bottom sealing weld; the second clamping component 2322 has both clamping and traction separation functions, and can directly separate adjacent filter bags after the bottom welding is completed, without the need for an additional independent cutting mechanism, simplifying the overall structure of the machine.

[0107] The internal partition welding, side sealing, bottom sealing, and filter bag separation are all completed sequentially along the first direction of the production line, with continuous material feeding throughout the entire process, further improving the automation level and production efficiency of the whole machine.

[0108] As an optional embodiment, the feeding tensioning mechanism 1 includes a first fabric roller 11, a second fabric roller 12, and a prefabricated spacer roller 13; The first fabric roller 11 is used to transfer the wound first fabric 111 to the welding and forming mechanism through the first tensioning assembly 14, and the second fabric roller 12 is used to transfer the wound second fabric 121 to the welding and forming mechanism through the second tensioning assembly 15. The prefabricated spacer roller 13 is used to transfer the wound spacer fabric 131 to the welding forming mechanism through the third tensioning assembly 16. The spacer fabric 131 consists of a plurality of pre-cut prefabricated spacer strips 1312. Each prefabricated spacer strip 1312 includes a plurality of spacer strips 1312 connected end to end, and a transition portion disposed between adjacent spacer strips 1312. A tear line is provided at the part of the spacer strip 1312 connected to the transition portion for subsequent tensile tearing and separation. The first tensioning assembly 14, the second tensioning assembly 15, and the third tensioning assembly 16 each include three tensioning rollers for turning and tensioning the corresponding fabric.

[0109] The feeding and tensioning mechanism 1 mainly includes a first feeding roller 11, a second feeding roller 12, and a prefabricated spacer roller 13.

[0110] The first fabric roller 11 releases the first roll of fabric 111, which is then sent to the downstream welding and forming mechanism after being turned and tensioned by the first tensioning component 14; the second fabric roller 12 releases the second roll of fabric 121, which is then conveyed to the welding and forming mechanism by the second tensioning component 15; the prefabricated spacer roller 13 outputs spacer fabric 131, which is then sent to the welding and forming mechanism by the third tensioning component 16.

[0111] The spacer fabric 131 is a prefabricated roll material, composed of multiple spacer strips 1312 connected end to end. A transition section is provided between adjacent spacer strips 1312, and a tear line is processed at the connection between the spacer strip 1312 and the transition section. During subsequent processing, under the action of external force, a single spacer strip 1312 can be torn and separated from the spacer fabric 131 along the tear line.

[0112] The first tensioning assembly 14, the second tensioning assembly 15, and the third tensioning assembly 16 are each equipped with three tensioning rollers. The roller group is used to change the direction of the fabric path and maintain the tension stability during the fabric conveying process.

[0113] Three independent three-roller tensioning components individually adjust the tension of the first fabric 111, the second fabric 121, and the spacer fabric 131 without interfering with each other. This effectively suppresses fabric slack and deviation, ensures the consistency of the feeding position of the three layers of fabric, and improves the positional accuracy of subsequent erection, folding, and welding.

[0114] The three-roller assembly simultaneously guides and adjusts the fabric, reducing the number of parts in the feeding mechanism and making the fabric path more compact. The spacer fabric 131 is positioned between the first fabric 111 and the second fabric 121 and is fed into the spacer folding assembly 21. Under the traction force inside the equipment, the prefabricated spacer strip 1312 is torn along the tear line and transition section to obtain an independent spacer strip 1312, which is then vertically folded and welded.

[0115] like Figure 3As shown, the first fabric roller 11, the prefabricated spacer roller 13, and the second fabric roller 12 are arranged horizontally side by side at the lower part of the frame of the feeding tensioning mechanism 1. The ends of the fabric rollers are equipped with damping discs to suppress the inertial vibration of the material being released. The three layers of fabric are drawn upwards and fed into the first tensioning assembly 14, the second tensioning assembly 15, and the third tensioning assembly 16, which are independent of each other, inside the protective frame on the right side of the frame.

[0116] Each tensioning assembly consists of three tensioning rollers arranged in a triangular pattern. By changing the wrap angle of the fabric using floating rollers, the first fabric 111, the second fabric 121, and the spacer fabric 131 can be steered and have their tension adjusted independently.

[0117] The spacer strip 131 is a continuous pre-fabricated roll with tear lines. The spacer strips 1312 are connected by a transition section and fed continuously as a whole. After entering the downstream welding and forming mechanism, they are torn apart along the tear lines by traction force to separate individual spacer strips 1312. After the three layers of fabric are output by the tensioning assembly, the spacer strip 131 is placed between the first fabric 111 and the second fabric 121 and fed together into the subsequent welding and forming station. The frame 3 is also equipped with a display module and leveling feet, and a protective frame is set on the outside of the tensioning roller group.

[0118] As an optional embodiment, the production equipment also includes a spacer pre-cutting mechanism 5, which includes a roller cutter 51 and a matching winding roller assembly 52. ​​The roller cutter 51 performs incomplete cutting of the spacer fabric 131 according to the shape of the corresponding spacer strip 1312, and the spacer fabric 131 retains continuous connection points. The roller cutter 51 is also provided with a positioning target printing unit to print positioning marks on the surface of the spacer fabric 131.

[0119] The matching winding roller assembly 52 is used to wind the pre-cut spacer fabric 131 by the roller cutter 51 into a roll, and the roll is conveyed to the feeding and tensioning mechanism 1 to complete the feeding of the spacer fabric 131.

[0120] The roller cutter 51 performs a partial cut on the spacer fabric 131, creating the outline of the spacer strip 1312, while retaining connection points on the fabric without completely severing it. Simultaneously, the roller cutter 51 integrates a positioning target printing unit to print positioning marks on the surface of the spacer fabric 131. After pre-cutting and printing, the spacer fabric 131 is wound into a finished roll by the matching winding roller assembly 52. ​​This roll is then fed to the feeding and tensioning mechanism 1 for subsequent production use.

[0121] The partition strip 131 is partially cut by an independent front-end mechanism, leaving only the connection point. During subsequent production of the whole machine, the individual partition strip 1312 can be torn along the pre-cut position by traction force. The main machine does not need to be equipped with a cutting mechanism, which simplifies the main machine structure.

[0122] Simultaneous printing of positioning marks provides a visual / mechanical positioning reference for subsequent folding and welding of the main unit, improving the positional accuracy of the separation strip 1312 during erection and welding.

[0123] The pre-cutting mechanism 5 is a pre-processing unit. The roller cutter 51 performs non-full cutting of the partition strip fabric 131 to form the outline of the partition strip and prints positioning marks. The fabric maintains a continuous state by relying on the connection points. The matching winding roller assembly 52 winds the processed fabric into a roll. This roll is fed into the feeding and tensioning mechanism 1 as raw material for use by the main equipment.

[0124] As an optional embodiment, the production equipment also includes a finished product conveying and stacking mechanism 6, which is located at the discharge end of the welding and forming mechanism 2. The finished product conveying and stacking mechanism 6 includes a belt conveyor 61 and a lifting and pressing push rod 62. The lifting and pressing push rod 62 moves up and down to automatically stack the torn and separated finished filter bags neatly.

[0125] The finished product conveying and stacking mechanism 6 is located at the discharge end of the welding and forming mechanism 2, and mainly consists of a belt conveyor 61 and a lifting and pressing push rod 62. The finished filter bags after welding and separation are received and conveyed by the belt conveyor 61; the lifting and pressing push rod 62 performs up and down reciprocating motion to press and arrange the continuously output finished filter bags, so as to realize the automatic and neat stacking of filter bags.

[0126] The belt conveyor 61 receives the discharged material, ensuring the smooth transfer of finished filter bags; the lifting and pressing push rod 62 presses the material back and forth, automatically completing the stacking and sorting of filter bags, reducing manual intervention.

[0127] Located at the discharge end of the machine, it matches the cycle time of the preceding welding and filter bag separation processes, realizing full automation from fabric feeding to finished product stacking.

[0128] The finished product conveying and stacking mechanism 6 is installed on the frame 3 and is located at the discharge end of the welding and forming mechanism 2. The belt conveyor line 61 is a multi-parallel hollow belt conveying structure. The hollow gaps allow the lifting and pressing push rod 62 to pass downward. The finished filter bags are output from the upstream welding and forming mechanism 2 and fall onto the belt conveyor line 61, and are conveyed forward with the belt.

[0129] The lifting and pressing push rod 62 is mounted on the upper crossbeam of the mechanism and is driven by the drive component to move vertically up and down. When the finished filter bag is delivered to the position, the lifting and pressing push rod 62 passes down through the belt gap of the belt conveyor 61 and presses against the surface of the filter bag, compacting the filter bag and placing it in place. The filter bags are then stacked at the stacking station below the belt conveyor 61.

[0130] After pressing is completed, the lifting and pressing push rod 62 is raised and reset to avoid feeding the next finished filter bag. This process is repeated to complete the neat stacking of multiple finished filter bags.

[0131] The bottom of the frame 3 is equipped with leveling feet to ensure the levelness of the stacking station; the belt conveyor 61 matches the discharge rhythm of the upstream welding and forming mechanism 2 to realize the continuous feeding-pressing-stacking cycle of filter bags.

[0132] As an optional embodiment, the production equipment also includes a waste collection mechanism 7, including a partition waste collection mechanism 71 and a side waste collection mechanism 72.

[0133] The waste collection mechanism 71 is located on one side of the folding assembly 21 and is used to collect the waste generated from the pre-cutting and tearing of the folding assembly; the waste collection mechanism 72 is located on one side of the filter bag welding assembly 23 and is used to collect the fabric scraps generated from the side trimming.

[0134] The waste collection mechanism 7 includes a spacer waste collection mechanism 71 and a side waste collection mechanism 72. The spacer waste collection mechanism 71 is located on the side of the spacer folding assembly 21 and collects the waste material remaining from the transition section after the spacer fabric 131 is torn. The side waste collection mechanism 72 is located on the side of the filter bag welding assembly 23 and collects the leftover fabric scraps cut off by the side cutting blade 2313.

[0135] Two waste collection mechanisms correspond to two waste generation stations, respectively, allowing for the collection of waste from nearby locations and preventing it from being drawn into the roller assembly or welding stations, thus ensuring continuous and stable equipment operation. Separate collection of the two types of waste facilitates subsequent waste processing, and the entire machine integrates production, discharge, and waste recycling.

[0136] like Figure 15 As shown, an embodiment of the present invention also provides a control method for a bag filter production equipment, applied to the aforementioned bag filter production equipment, comprising: In step S1, the first fabric 111, the second fabric 121, and the spacer fabric 131 of the separator strip 1312 are tensioned by the feeding and tensioning mechanism 1 and then transmitted to the welding and forming mechanism 2 along the first direction.

[0137] In step S2, the dividing strip 1312 of the partition fabric 131 is flipped by the upright roller 211 of the welding forming mechanism 2 so that the dividing strip 1312 is in a second direction perpendicular to the first fabric 111 and the second fabric 121.

[0138] In step S3, the separator strip 1312 is transferred between the first upright plate 2121 and the second upright plate 2122 of the welding forming mechanism 2. The folded edge strip 213 is controlled to move, and the edge of the separator strip 1312 is pressed and folded onto the adsorption surface 2123 of the first upright plate 2121 and the second upright plate 2122 for adsorption.

[0139] In step S4, the first fabric 111 and the second fabric 121 are transferred to both sides of the separator strip 1312 and come into contact with the edge of the separator strip 1312 pressed against the adsorption surface 2123.

[0140] Step S5: The edges are welded to the first fabric 111 and the second fabric 121 by the spacer welding assembly 22.

[0141] Step S6: The filter bag welding assembly 23 sequentially completes the welding of both sides of the filter bag and the bottom sealing welding to obtain a bag filter.

[0142] The spacer strip roll is prepared in advance using the spacer strip pre-cutting mechanism 5. The roller 51 of the spacer strip pre-cutting mechanism 5 performs a partial cut on the original spacer strip fabric 131, retaining continuous connection points to form the outline of the spacer strip 1312. At the same time, the positioning target printing unit on the roller 51 prints positioning marks on the surface of the spacer strip fabric 131. The matching winding roller assembly 52 winds the processed spacer strip fabric 131 into a pre-made spacer strip roll, and the pre-made spacer strip roll is transferred to the pre-made spacer strip roller 13 of the feeding and tensioning mechanism 1 for use.

[0143] The first fabric roller 11, the second fabric roller 12, and the prefabricated spacer roller 13 of the feeding and tensioning mechanism 1 respectively release the first fabric 111, the second fabric 121, and the spacer fabric 131. The first tensioning assembly 14, the second tensioning assembly 15, and the third tensioning assembly 16 respectively adjust the direction and tension of the three fabrics; the spacer fabric 131 is a continuous strip with tear lines, and adjacent spacers 1312 are connected by transition sections.

[0144] After the three fabrics are tensioned, they are conveyed together in the first direction to the welding and forming mechanism 2. The spacer fabric 131 is placed between the first fabric 111 and the second fabric 121. During the conveying process, the traction force of the equipment causes the spacer fabric 131 to tear along the tear line, separating the individual spacer strips 1312 from the transition part. The waste material generated by the tearing of the transition part is recycled by the spacer waste collection mechanism 71 on one side of the spacer folding assembly 21.

[0145] The fabric enters the partition strip folding assembly 21, and the tearing and separating partition strip 1312 is flipped by the upright roller 211, so that the partition strip 1312 is flipped from a flat state to an upright state, and the extension direction of the partition strip 1312 is switched to a second direction perpendicular to the conveying direction of the first fabric 111 and the second fabric 121.

[0146] The erected separator strip 1312 is fed between the first erecting plate 2121 and the second erecting plate 2122. The folded edge strip 213 is controlled to move, and the two sides of the separator strip 1312 are pressed outwards and pressed against the adsorption surfaces 2123 of the first erecting plate 2121 and the second erecting plate 2122.

[0147] The adsorption surface 2123 generates an adsorption force, which adsorbs and fixes the edge of the folded separator 1312, keeping the separator 1312 upright and with its edge folded.

[0148] The first fabric 111 and the second fabric 121 continue to be fed along the first direction and are respectively conveyed to the left and right sides of the vertically positioned dividing strip 1312, so that the first fabric 111 and the second fabric 121 are pressed and adsorbed onto the two sides of the dividing strip 1312 on the adsorption surface 2123 and come into contact with each other.

[0149] When the separator welding assembly 22 is activated, it welds the two folded edges of the separator 1312 to the corresponding first fabric 111 and second fabric 121, respectively, so that the separator 1312 is fixedly clamped between the two layers of filter material, thus completing the formation of the internal separation structure of the filter bag.

[0150] The composite fabric with the welded separator strip 1312 continues to be conveyed to the filter bag welding assembly 23. The roller-type side cutting blade 2313 in the filter bag welding assembly 23 trims the excess edges on both sides of the fabric, and the resulting side fabric scraps are collected by the side waste collection mechanism 72 located on one side of the filter bag welding assembly 23.

[0151] Subsequently, the filter bag welding assembly 23 sequentially completes the welding of both sides of the filter bag and the sealing welding of the bottom of the filter bag, thus completing the tearing and separation of a single bag filter product.

[0152] The finished filter bags obtained from welding and separation are output to the finished product conveying and stacking mechanism 6 at the discharge end of the welding forming mechanism 2. The finished products fall into the belt conveyor line 61, which is a structure of multiple parallel hollow belts.

[0153] The lifting and pressing push rod 62 moves up and down reciprocatingly. When pressing down, it passes through the slotted gap of the belt conveyor line 61 to press the filter bag, so that multiple finished filter bags are stacked neatly. After pressing is completed, the lifting and pressing push rod 62 is raised and reset, and the finished filter bags are continuously and automatically stacked in a cycle.

[0154] It should be noted that the term "comprising" and its variations used in the embodiments of this invention are open-ended, meaning "including but not limited to". The terms "first", "second", etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features.

[0155] The appearance of the term "embodiment" in various places in this specification does not necessarily mean the same embodiment, nor does it imply that it is independent of or alternative to other embodiments. The various embodiments in this specification are described in a related manner, and the same or similar parts between the various embodiments can be referred to each other.

Claims

1. A production equipment for a bag filter, characterized in that, include: Feeding and tensioning mechanism, welding and forming mechanism; The feeding and tensioning mechanism is used to tension the first and second fabrics forming the bag filter, as well as the spacer fabric used to set the separator strips in the bag filter, and then transmit them to the welding and forming mechanism along the first direction. The welding and forming mechanism includes a spacer folding assembly, a spacer welding assembly, and a filter bag welding assembly arranged sequentially along the first direction; The partition strip folding assembly includes a standing roller, a standing plate, and a folding strip; the standing roller is used to fold the partition strip of the partition strip fabric so that the partition strip is in a second direction perpendicular to the first fabric and the second fabric; The erecting plate includes a first erecting plate and a second erecting plate. The first erecting plate and the second erecting plate are respectively disposed on both sides of the flipped separator strip and are staggered in the second direction. The first erecting plate and the second erecting plate are both configured as adsorption surfaces on the side surface near the edge of the separator strip. The adsorption surfaces are provided with negative pressure holes for adsorbing the edge of the erected separator strip in the second direction. The folded edge strip is movably mounted on the erecting plate for pressing and folding the adsorbed edge so that the pressed edge contacts the first and second fabrics at the corresponding positions. The spacer welding assembly includes a spacer welding head, which works in conjunction with the erecting plate to weld the edges that contact the first fabric and the second fabric onto the first fabric and the second fabric. The filter bag welding assembly is used to weld the sides and bottom of the filter bag to form a bag filter.

2. The bag filter production equipment according to claim 1, characterized in that, The bag filter has a tapered cross-sectional shape along the first direction, and the size of the tapered shape gradually decreases along the first direction. Multiple dividing strips are provided in the third direction. The first erecting plate and the second erecting plate are respectively mounted on corresponding connecting rods, and the connecting rods drive the first erecting plate and / or the second erecting plate to move in a third direction; Multiple sets of upright plates are provided on the connecting rod. The number of sets of upright plates is the same as the number of sets of pre-made separator strips on the partition fabric. The number of sets of separator strips is the same as the number of separator strips required for the bag filter.

3. The bag filter production equipment according to claim 2, characterized in that, It also includes adjustment components, which include tilt adjustment components and distance adjustment components; The tilt adjustment component is disposed at one end of the first upright plate and the second upright plate, and is used to adjust the tilt of the first upright plate or the second upright plate so that the adsorption surface of the first upright plate and the second upright plate matches the edge of the spacer fabric. The distance adjustment component includes a first slider disposed on the first upright plate and a second slider disposed on the second upright plate. Both the first slider and the second slider are mounted on a corresponding connecting rod, and the connecting rod is movable in the third direction.

4. The bag filter production equipment according to claim 1, characterized in that, The spacer welding head includes a first spacer welding head and a second spacer welding head; The first partition bar welding head is located on the other side of the first upright plate where the folded edge strip is set, and matches the corresponding first welding pressure block, for welding the edge of the partition bar that is folded by the folded edge strip to the first fabric; The second partition bar welding head is located on the other side of the second upright plate where the folded edge strip is set, and matches the corresponding second welding pressure block, for welding the edge of the partition bar that is folded by the folded edge strip to the second fabric; Both the first and second spacer welding heads are installed via L-shaped arms. The L-shaped arms are used to avoid the turning rollers of the first and second fabrics. The turning rollers are arranged along a first direction at the free ends of the first and second upright plates to turn the first and second fabrics so that the moving direction of the first and second fabrics matches the edge of the spacer after it is folded.

5. The bag filter production equipment according to claim 1, characterized in that, The filter bag welding assembly includes a side welding assembly and a bottom welding assembly; The side welding assembly includes a side welding head and a side welding block disposed opposite to both sides of the first fabric or the second fabric. The side welding head and the side welding block are disposed opposite to each other to weld the two sides of the first fabric and the second fabric. A side cutting blade is also disposed at the corresponding position of the side welding head to cut off the excess material in the second direction. The bottom welding assembly includes a pressure breaking assembly and a bottom welding head. The pressure breaking assembly includes a first clamping member and a second clamping member. The first clamping member, the bottom welding head and the second clamping member are arranged along a first direction. The first clamping member is used to fix the filter bag to be welded at the corresponding position after welding is completed on both sides of the first fabric or the second fabric, so as to place the bottom of the filter bag to be welded at the working position of the bottom welding head. The bottom welding head is located between the first clamping member and the second clamping member, and cooperates with the corresponding bottom welding block to weld the bottom of the filter bag; The second clamping element is used to clamp and move adjacent welded filter bags after the bottom of the filter bag is welded, so as to separate the two adjacent filter bags.

6. The bag filter production equipment according to claim 1, characterized in that, The feeding and tensioning mechanism includes a first fabric roller, a second fabric roller, and a prefabricated spacer roller; The first fabric roller is used to transfer the first wound fabric to the welding and forming mechanism through the first tensioning assembly, and the second fabric roller is used to transfer the second wound fabric to the welding and forming mechanism through the second tensioning assembly. The prefabricated spacer roller is used to transfer the wound spacer fabric to the welding and forming mechanism through the third tensioning component. The spacer fabric consists of multiple pre-cut prefabricated spacer strips. Each prefabricated spacer strip includes multiple spacer strips connected end to end, and a transition section is provided between adjacent spacer strips. A tear line is provided at the part where the spacer strip is connected to the transition section for subsequent tensile tearing and separation. The first tensioning assembly, the second tensioning assembly, and the third tensioning assembly each include three tensioning rollers for turning and tensioning the corresponding fabric.

7. The bag filter production equipment according to claim 1, characterized in that, The production equipment also includes a spacer pre-cutting mechanism, which includes a roller cutter and a matching winding roller assembly. The roller cutter performs incomplete cutting of the spacer fabric according to the corresponding spacer shape, and the spacer fabric retains continuous connection points. The roller cutter is also equipped with a positioning target printing unit to print positioning marks on the surface of the spacer fabric. The matching winding roller assembly is used to wind the pre-cut spacer strip fabric into a roll, and the roll is conveyed to the feeding and tensioning mechanism to complete the feeding of the spacer strip fabric.

8. The bag filter production equipment according to claim 1, characterized in that, The production equipment also includes a finished product conveying and stacking mechanism, which is located at the discharge end of the welding and forming mechanism. The finished product conveying and stacking mechanism includes a belt conveyor and a lifting and pressing push rod. The lifting and pressing push rod moves up and down to automatically stack the torn and separated finished filter bags neatly.

9. The bag filter production equipment according to claim 1, characterized in that, The production equipment also includes a waste collection mechanism, including a partition waste collection mechanism and a side waste collection mechanism; The waste collection mechanism for the partition strip is located on one side of the partition strip folding assembly and is used to collect waste generated from the pre-cutting and tearing of the partition strip; the waste collection mechanism for the side is located on one side of the filter bag welding assembly and is used to collect fabric scraps generated from the side trimming.

10. A control method for a bag filter production equipment, characterized in that, The production equipment for the bag filter as described in any one of claims 1 to 9 comprises: The first fabric, the second fabric, and the spacer fabric of the dividing strip are tensioned by the feeding and tensioning mechanism and then transmitted to the welding and forming mechanism along the first direction. The dividing strip of the spacer fabric is flipped by the erecting roller of the welding forming mechanism so that the dividing strip is in a second direction perpendicular to the first fabric and the second fabric; The separator strip is transferred between the first and second erecting plates of the welding forming mechanism, and the folded edge strip is controlled to move, pressing the edge of the separator strip onto the adsorption surfaces of the first and second erecting plates for adsorption. The first fabric and the second fabric are transferred to both sides of the separator strip, and the separator strip is pressed against the edge of the adsorption surface; The edge is welded to the first fabric and the second fabric using a spacer welding assembly; The filter bag is obtained by sequentially welding the two sides and sealing the bottom of the filter bag using the filter bag welding assembly.

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