Device for welding longitudinal and transverse seams of metal filter bag

Abstract

The invention belongs to the technical field of metal filter bag processing, and discloses a metal filter bag longitudinal and transverse seam welding device which comprises two clamping assemblies, linkage assemblies are installed at the upper end and the lower end between the two clamping assemblies, and a locking assembly located under the linkage assemblies is installed at the upper end between the two clamping assemblies. A welding assembly is installed at the bottom end of the linkage assembly located on the upper portion. According to the welding device, the clamping assembly automatically clamps the metal filter bag under the action of the locking assembly, meanwhile, the radial position of the welding assembly can be kept unchanged through the linkage assembly, that is, the welding assembly is kept perpendicular to a longitudinal weld joint all the time, meanwhile, the upward moving process of the welding assembly is automatically compensated under the action of the locking assembly, and the welding efficiency is improved. The welding head is kept in the welding position all the time, the whole welding positioning process and the clamping process are completed at the same time, the complex positioning process before welding is not needed, the welding preparation time is shortened, and the welding efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal filter bag processing, and specifically relates to a device for welding longitudinal and transverse seams of a metal filter bag. Background Art

[0002] A metal filter bag is a high-performance filtering device made of metal fiber or metal powder felt as the core material, and is mainly applied to the industrial flue gas treatment scenarios with high temperature and strong corrosion. Its material is usually made of stainless steel (such as 310S) or ferritic chromium-aluminum alloy, and has the characteristics of high temperature resistance (instantaneous temperature can reach 450 °C, long-term use temperature is 800 °C), corrosion resistance, oxidation resistance, etc., and is especially suitable for heavy industrial fields such as cement, steel, and chemical industry. During the processing of metal filter bags, it is usually necessary to weld its longitudinal welds and transverse welds, and at this time, a special welding device is required.

[0003] When welding a metal track, especially when welding a longitudinal weld, the prior art uses a method of cooperating a clamping component and a welding component to achieve welding, that is, first clamping and fixing the metal filter bag through the clamping component, and after completion of the fixing, then realizing the welding process through the welding component. However, before the welding component performs welding, it is also necessary to position the welding position to achieve correct welding. At the same time, after welding a section of the position, it is necessary to disassemble the clamping component and displace it before welding the other end, and the overall welding efficiency is relatively low.

[0004] Since during the welding process of metal filter bags, it is not only necessary to weld the longitudinal welds of the metal filter bags, but also to weld the transverse welds. However, due to the different displacement directions of the two weldings, currently different devices are required for welding, that is, using special welding devices for longitudinal welds and transverse welds for separate welding, the equipment practicability is relatively low, and at the same time, a continuous welding process cannot be achieved. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for welding longitudinal and transverse seams of a metal filter bag to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A device for welding the longitudinal and transverse seams of a metal filter bag, comprising two clamping components. At both the upper and lower ends between the two clamping components, linkage components are installed. At the upper end between the two clamping components, a locking component is installed directly below the linkage component. At the bottom end of the upper linkage component, a welding component is installed. The front end of the welding component communicates with the rear end of the locking component. At the rear end of the clamping component, there is a mounting plate. At both the upper and lower ends of the mounting plate, guiding grooves are opened. Inside the upper guiding groove, a guiding rod is movably clamped. Inside the lower guiding groove, a lead screw is movably clamped. The guiding rod is movably sleeved between the upper linkage component. The lead screw is threadedly connected between the lower linkage component; The locking component controls the relative displacement of the two clamping components. When the two clamping components displace relatively, the distance between the upper and lower linkage components changes, and drives the welding component to displace up and down. When the distance between the two clamping components changes, the distance between the guiding rod and the lead screw changes synchronously; In the middle of the rear end of the mounting plate, a rotating shaft is fixedly installed. On both the left and right sides of the lower guiding groove, fixed guide rails are fixedly installed. At the rear end of the fixed guide rail, there is a guiding motor base. The guiding motor base is movably clamped with the fixed guide rail and is relatively displaced up and down with respect to the fixed guide rail. Inside the guiding motor base, an adjusting motor is installed. The output end of the adjusting motor is connected to the lead screw.

[0007] Before processing the metal filter bag, one end of the metal filter bag can be inserted between the two clamping components to ensure that the metal filter bag is positioned between the two clamping components. At the same time, the device needs to be connected to an external power supply, and the bottom end of the welding component should be kept directly above the longitudinal weld to complete the preparations before welding; When the clamping and fixing of the metal filter bag and the welding positioning are completed, and after the welding at the specified position is completed by the welding component, the adjusting motor can be started to drive the lead screw to rotate. At this time, the upper and lower linkage components respectively drive the clamping component, the linkage component, the locking component, and the welding component to displace integrally relative to the mounting plate under the guidance of the guiding rod and the rotation of the lead screw. At this time, the upper welding component can displace integrally relative to the longitudinal weld, and the continuous linear welding of the longitudinal weld is completed through the action of the welding component, completing the welding process of the longitudinal weld.

[0008] By utilizing the cooperation among the clamping assembly, the linkage assembly, the locking assembly and the welding assembly, and through the guidance of the guide rod and the lead screw with the linkage assembly, after the device completes welding fixation and welding positioning, it can perform linear continuous welding on the entire longitudinal weld. The entire welding process can be automatically completed without disassembling the device, avoiding the problem that traditional devices need to undergo a complex disassembly process during linear welding and cannot perform continuous linear welding, and significantly improving welding quality and welding efficiency.

[0009] As a further technical solution of the present invention, the clamping assembly includes a clamping ring. Extension ear plates are installed at the upper and lower ends of the two clamping rings. Movable ball seats are installed diagonally at the relatively close ends of the two clamping rings, and balls are movably installed inside the movable ball seats.

[0010] Before welding the metal filter bag, the metal filter bag can be kept sleeved between the two clamping rings, and the balls are located on the outer side of the metal filter bag. When the two clamping rings approach each other relatively, the balls can contact the outer side of the metal filter bag, and the metal filter bag is clamped and fixed by the four balls. At the same time, on the premise that the balls can keep in contact with the metal filter bag, they can roll relative to the movable ball seats to assist in completing the position change of the device.

[0011] As a further technical solution of the present invention, the linkage assembly includes a first fixed seat, which is connected to the extension ear plate. Link rods are movably connected to the ends of the first fixed seat away from the extension ear plate through rotating shafts. The ends of the link rods relative to the first fixed seat are movably connected to second fixed seats through rotating shafts. The linkage assembly further includes a linkage plate, and the left and right sides of the bottom end of the linkage plate are connected to the tops of the two second fixed seats.

[0012] As a further technical solution of the present invention, guide ear plates are fixedly installed at the relatively far ends of the upper and lower linkage plates. The guide ear plate located above is movably sleeved with the guide rod, and the guide ear plate located below is threadedly sleeved with the lead screw.

[0013] As a further technical solution of the present invention, the locking assembly includes an oil storage tank filled with hydraulic oil inside. A three-way valve is fixedly connected to the bottom end of the oil storage tank. An oil pump is installed between the oil storage tank and the three-way valve. An adjustment pipe is provided at the rear end of the three-way valve. Oil inlets are fixedly connected to the left and right sides of the front end of the adjustment pipe, and the oil inlets are connected to the left and right ends of the three-way valve.

[0014] As a further technical solution of the present invention, piston plates are fixedly communicated with both the left and right sides of the inner cavity of the adjusting pipe. One end of each of the two piston plates, which is relatively far away from each other, is fixedly installed with a piston rod. One end of the piston rod penetrates through one end of the adjusting pipe and is fixedly connected with an adjusting seat. One end of the adjusting seat, which is far away from the piston rod, is movably connected with a third fixed seat through a rotating shaft, and a connection is established between one end of the third fixed seat and the clamping ring.

[0015] As a further technical solution of the present invention, a return spring is movably sleeved on the outer side of the piston rod. The left and right ends of the return spring are respectively connected with one end of the piston plate and one end of the inner cavity of the adjusting pipe. The middle part of the rear end of the adjusting pipe is fixedly communicated with an oil discharge port, and the other end of the oil discharge port is communicated with the welding assembly. Hydraulic oil is filled between the two piston plates.

[0016] When clamping and fixing the metal filter bag, the oil pump can be started to input the hydraulic oil located inside the oil storage tank into the three-way valve after pressurization. At this time, it can enter the interiors of the two oil inlets simultaneously through the distribution of the three-way valve, that is, enter the left and right ends of the adjusting pipe, and apply a thrust to the two piston plates. At this time, the two piston plates and the piston rods move relatively closer to each other, and the return spring can be stretched. At the same time, the hydraulic oil located between the two piston plates is pressed out through the oil discharge port; When the two piston rods move relatively closer to each other, the two adjusting seats can be synchronously pulled to move relatively closer to each other, and drive the two clamping rings to move relatively closer to each other until the balls come into contact with the outer side of the metal filter bag, completing the clamping process of the metal filter bag. At the same time, the connecting rod deflects in a direction away from the clamping ring. At this time, the linkage plate is subjected to a thrust force and drives the two linkage plates to move relatively away from each other. At this time, the guide rod and the lead screw move relatively away from each other under the guiding action of the guide groove, and the lead screw can synchronously drive the guide motor seat to displace relative to the fixed guide rail to maintain the input of power, and the welding assembly located above moves upward relative to the longitudinal weld.

[0017] As a further technical solution of the present invention, the welding assembly includes a fixed pipe. A pressurizing pipe is fixedly communicated with the front side of the fixed pipe and near the top. The other end of the pressurizing pipe is communicated with the oil discharge port. An activity plate is movably sleeved inside the fixed pipe.

[0018] As a further technical solution of the present invention, the bottom end of the activity plate is fixedly connected with an activity rod. The bottom end of the activity rod penetrates through the bottom end of the fixed pipe and is fixedly connected with a welding head. The welding head is connected with an external welding machine through a pipeline. A return spring is movably sleeved on the outer side of the activity rod. The upper and lower ends of the return spring are respectively connected with the bottom end of the activity plate and the bottom end of the inner cavity of the fixed pipe.

[0019] When the hydraulic oil inside the adjusting pipe is pressed out through the oil drain port, it can enter the inside of the fixed pipe through the pressurizing pipe. At this time, the entering hydraulic oil can exert pressure on the movable plate. At this time, the return spring can be compressed and drive the movable rod and the welding head to move downward until the welding head descends to the welding position, completing the self-positioning before welding. At this time, the longitudinal weld can be welded.

[0020] By utilizing the cooperation among the locking component, the linkage component and the welding component, while the clamping component self-clamps the metal filter bag through the action of the locking component, the radial position of the welding component can be kept unchanged through the linkage component, that is, the welding component is always kept perpendicular to the longitudinal weld. At the same time, the upward movement process of the welding component is automatically compensated through the action of the locking component, and the welding head is always kept at the welding position. The entire welding positioning process and the clamping process are completed simultaneously, without a complex positioning process before welding, shortening the welding preparation time and significantly improving the welding efficiency.

[0021] When the longitudinal weld is completed, the states of the clamping component, the linkage component, the locking component and the welding component can be maintained at this time, that is, the clamping and fixing process and the welding position of the welding component are maintained. And the welding component is adjusted to the welding position of the transverse weld through the action of the lead screw. At the same time, by rotating the rotating shaft, the mounting plate and the whole device can be driven to rotate. At this time, the welding component can rotate relative to the metal filter bag and perform circumferential welding on the transverse weld until the welding processes of all the longitudinal welds and transverse welds of the metal filter bag are completed.

[0022] By utilizing the cooperation among the clamping component, the linkage component, the locking component and the welding component again, and through the rotation of the mounting plate and the guidance of the lead screw, the device can quickly complete the straight welding of the longitudinal weld and perform circumferential welding on the transverse weld at the same time. The whole welding process does not require adjustment of the device and does not require the use of different devices for welding. The continuous welding of the longitudinal weld and the transverse weld can be realized, significantly improving the practicability of the equipment and the overall welding efficiency.

[0023] The beneficial effects of the present invention are as follows: (1) By utilizing the cooperation among the locking component, the linkage component and the welding component, while the clamping component self-clamps the metal filter bag through the action of the locking component, the radial position of the welding component can be kept unchanged through the linkage component, that is, the welding component is always kept perpendicular to the longitudinal weld. At the same time, the upward movement process of the welding component is automatically compensated through the action of the locking component, and the welding head is always kept at the welding position. The entire welding positioning process and the clamping process are completed simultaneously, without a complex positioning process before welding, shortening the welding preparation time and significantly improving the welding efficiency.

[0024] (2) By reusing the cooperation between the clamping assembly, the linkage assembly, the locking assembly, and the welding assembly, and through the rotation of the mounting plate and the guidance of the lead screw, the device can not only quickly complete the straight welding of longitudinal welds but also perform circular welding on transverse welds. During the entire welding process, there is no need to adjust the device, nor to use different devices for welding. It can achieve continuous welding of longitudinal and transverse welds, significantly improving the practicality of the equipment and the overall welding efficiency.

[0025] (3) By utilizing the cooperation between the clamping assembly, the linkage assembly, the locking assembly, and the welding assembly, and through the guidance of the guide rod and the lead screw with the linkage assembly, after the device completes welding fixation and welding positioning, it can perform straight and continuous welding on the entire longitudinal weld. The entire welding process can be automatically completed without disassembling the device, avoiding the problem that traditional devices require a complex disassembly process during straight welding and cannot perform continuous straight welding, significantly improving the welding quality and welding efficiency. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is an exploded schematic diagram of the guide rod, the lead screw, and the mounting plate structure of the present invention; Figure 3 is an exploded schematic diagram of the fixed guide rail and the guide motor seat structure of the present invention; Figure 4 is a schematic diagram of the cooperation of the clamping assembly, the linkage assembly, the locking assembly, and the welding assembly structures of the present invention; Figure 5 is an exploded schematic diagram of the clamping assembly structure of the present invention alone; Figure 6 is a schematic diagram of the cooperation of the linkage assembly, the locking assembly, and the welding assembly structures of the present invention; Figure 7 is a separate schematic diagram of the linkage assembly structure of the present invention; Figure 8 is a separate schematic diagram of the locking assembly structure of the present invention; Figure 9 is a partial cross-sectional schematic diagram of the locking assembly structure of the present invention; Figure 10 is a separate cross-sectional schematic diagram of the welding assembly structure of the present invention.

[0027] In the figure: 1. clamping assembly; 101. clamping ring; 102. extension ear plate; 103. movable ball seat; 104. ball; 2. linkage assembly; 201. first fixed seat; 202. second fixed seat; 203. linkage plate; 204. guiding ear plate; 205. connecting rod; 3. locking assembly; 301. oil storage tank; 302. oil pump; 303. three-way valve; 304. adjusting pipe; 305. piston plate; 306. piston rod; 307. return spring; 308. oil inlet; 309. oil outlet; 3010. adjusting seat; 3011. third fixed seat; 4. welding assembly; 401. fixed pipe; 402. movable plate; 403. movable rod; 404. return spring; 405. pressure pipe; 406. welding head; 5. guiding rod; 6. lead screw; 7. mounting plate; 8. guiding groove; 9. fixed guide rail; 10. rotating shaft; 11. guiding motor seat; 12. adjusting motor. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] As Figures 1 to 10 shown, in the embodiment of the present invention, a device for welding the longitudinal and transverse seams of a metal filter bag includes two clamping assemblies 1. Linkage assemblies 2 are installed at both the upper and lower ends between the two clamping assemblies 1. A locking assembly 3 is installed at the upper end between the two clamping assemblies 1 and is located directly below the linkage assembly 2. A welding assembly 4 is installed at the bottom end of the upper linkage assembly 2. The front end of the welding assembly 4 is connected to the rear end of the locking assembly 3. A mounting plate 7 is provided at the rear end of the clamping assembly 1. Guiding grooves 8 are opened at both the upper and lower ends of the mounting plate 7. A guiding rod 5 is movably clamped inside the upper guiding groove 8, and a lead screw 6 is movably clamped inside the lower guiding groove 8. The guiding rod 5 is movably sleeved between the upper linkage assembly 2, and the lead screw 6 is threadedly connected between the lower linkage assembly 2; The locking assembly 3 controls the relative displacement of the two clamping assemblies 1. When the two clamping assemblies 1 are relatively displaced, the distance between the upper and lower two linkage assemblies 2 changes, and drives the welding assembly 4 to move up and down. When the distance between the two clamping assemblies 1 changes, the distance between the guiding rod 5 and the lead screw 6 changes synchronously; A rotating shaft 10 is fixedly installed in the middle of the rear end of the mounting plate 7. Fixed guide rails 9 are fixedly installed on both the left and right sides of the lower guide groove 8. A guide motor base 11 is provided at the rear end of the fixed guide rail 9. The guide motor base 11 is movably clamped to the fixed guide rail 9 and is displaced up and down relative to the fixed guide rail 9. An adjustment motor 12 is installed inside the guide motor base 11, and the output end of the adjustment motor 12 is connected to the lead screw 6.

[0030] Before processing the metal filter bag, one end of the metal filter bag can be inserted between the two clamping components 1 to ensure that the metal filter bag is located between the two clamping components 1. At the same time, the device needs to be connected to an external power source, and the bottom end of the welding component 4 should be kept directly above the longitudinal weld to complete the preparation before welding. After the metal filter bag is clamped and fixed and the welding is positioned, and after the welding at the specified position is completed by the welding component 4, the adjustment motor 12 can be started to drive the lead screw 6 to rotate. At this time, the upper and lower linkage components 2 can drive the clamping component 1, the linkage component 2, the locking component 3, and the welding component 4 to displace relative to the mounting plate 7 as a whole under the guidance of the guide rod 5 and the rotation of the lead screw 6. At this time, the welding component 4 located above can displace relative to the longitudinal weld as a whole, and the continuous linear welding of the longitudinal weld can be completed through the action of the welding component 4, thus completing the welding process of the longitudinal weld.

[0031] By utilizing the cooperation between the clamping component 1, the linkage component 2, the locking component 3, and the welding component 4, and through the guidance of the guide rod 5 and the lead screw 6 with the linkage component 2, after the device completes the welding fixation and welding positioning, it can perform linear continuous welding on the entire longitudinal weld. The entire welding process can be automatically completed without disassembling the device, which can avoid the problem that the traditional device needs to go through a complex disassembly process during linear welding and cannot perform continuous linear welding, significantly improving the welding quality and welding efficiency.

[0032] As Figure 1 and Figure 4 and Figure 5 As shown, the clamping component 1 includes clamping rings 101. Extension ear plates 102 are installed at both the upper and lower ends of the two clamping rings 101. Movable ball seats 103 are installed diagonally at the relatively close ends of the two clamping rings 101, and balls 104 are movably installed inside the movable ball seats 103.

[0033] Before welding the metal filter bag, the metal filter bag can be kept sleeved between the two clamping rings 101, and the balls 104 are kept on the outer side of the metal filter bag. When the two clamping rings 101 approach each other, the balls 104 can contact the outer side of the metal filter bag, and the metal filter bag can be clamped and fixed by the four balls 104. At the same time, on the premise that the balls 104 can keep in contact with the metal filter bag, they can roll relative to the movable ball seats 103 to assist in completing the position change of the device.

[0034] As Figure 1 and Figure 4 and also Figure 6 and Figure 7 As shown, the linkage assembly 2 includes a first fixed seat 201. The first fixed seat 201 is connected to the extended ear plate 102. One end of the first fixed seat 201 away from the extended ear plate 102 is pivotally connected to a connecting rod 205 through a rotating shaft. One end of the connecting rod 205 relative to the first fixed seat 201 is pivotally connected to a second fixed seat 202 through a rotating shaft. The linkage assembly 2 further includes a linkage plate 203. The left and right sides of the bottom end of the linkage plate 203 are connected to the top ends of the two second fixed seats 202. The relatively far ends of the upper and lower two linkage plates 203 are fixedly installed with guiding ear plates 204. The guiding ear plate 204 located above is movably sleeved with the guiding rod 5, and the guiding ear plate 204 located below is threadedly sleeved with the lead screw 6.

[0035] Among them, the lower guiding ear plate 204 can rotate relative to the lead screw 6, while the upper guiding rod 5 can move back and forth relative to the guiding ear plate 204. That is, when the lead screw 6 rotates, the upper and lower two clamping assemblies 1 can be synchronously driven to move back and forth relative to the guiding rod 5 and the lead screw 6 at the same time to complete the position adjustment.

[0036] As Figure 4 and Figure 6 and also Figure 8 and Figure 9 As shown, the locking assembly 3 includes an oil storage tank 301. The interior of the oil storage tank 301 is filled with hydraulic oil. The bottom end of the oil storage tank 301 is fixedly communicated with a three-way valve 303. An oil pump 302 is installed between the oil storage tank 301 and the three-way valve 303. A regulating pipe 304 is provided at the rear end of the three-way valve 303. The left and right sides of the front end of the regulating pipe 304 are fixedly communicated with oil inlets 308. The oil inlets 308 are communicated with the left and right ends of the three-way valve 303. The left and right sides of the inner cavity of the regulating pipe 304 are fixedly communicated with piston plates 305. One end of each of the two piston plates 305 facing away from each other is fixedly installed with a piston rod 306. One end of the piston rod 306 penetrates through one end of the regulating pipe 304 and is fixedly connected to a regulating seat 3010. One end of the regulating seat 3010 away from the piston rod 306 is pivotally connected to a third fixed seat 3011 through a rotating shaft. One end of the third fixed seat 3011 is connected to the clamping ring 101. A return spring 307 is movably sleeved on the outer side of the piston rod 306. The left and right ends of the return spring 307 are respectively connected to one end of the piston plate 305 and one end of the inner cavity of the regulating pipe 304. The middle of the rear end of the regulating pipe 304 is fixedly communicated with an oil drain port 309. The other end of the oil drain port 309 is communicated with the welding assembly 4. Hydraulic oil is filled between the two piston plates 305.

[0037] When clamping and fixing the metal filter bag, the oil pump 302 can be turned on to pressurize the hydraulic oil inside the oil storage tank 301 and input it into the three-way valve 303. At this time, it can enter the two oil inlets 308 simultaneously through the distribution of the three-way valve 303, that is, enter the left and right ends of the adjusting pipe 304, and apply a thrust to the two piston plates 305. At this time, the two piston plates 305 and the piston rod 306 move closer to each other relatively, and the return spring 307 can be stretched. At the same time, the hydraulic oil between the two piston plates 305 is pressed out through the oil drain port 309; When the two piston rods 306 move closer to each other relatively, the two adjusting seats 3010 can be pulled to move closer to each other synchronously, and drive the two clamping rings 101 to move closer to each other until the ball 104 contacts the outer side of the metal filter bag, completing the clamping process of the metal filter bag. At the same time, the connecting rod 205 deflects away from the clamping ring 101. At this time, the linkage plate 203 is subjected to a thrust force and drives the two linkage plates 203 to move away from each other relatively. At this time, the guide rod 5 and the lead screw 6 move away from each other relatively under the guiding action of the guide groove 8, and the lead screw 6 can drive the guide motor base 11 to displace relative to the fixed guide rail 9 simultaneously to maintain the input of power, and the welding assembly 4 located above moves upward relative to the longitudinal weld.

[0038] As Figure 4 and Figure 6 as well as Figure 10 shown, the welding assembly 4 includes a fixed pipe 401. A pressure pipe 405 is fixedly connected and communicated at the position near the top on the front side of the fixed pipe 401. The other end of the pressure pipe 405 is communicated with the oil drain port 309. An activity plate 402 is movably sleeved inside the fixed pipe 401. A movable rod 403 is fixedly connected to the bottom end of the activity plate 402. The bottom end of the movable rod 403 penetrates through the bottom end of the fixed pipe 401 and is fixedly connected with a welding head 406. The welding head 406 is connected to an external welding machine through a pipeline. A return spring 404 is movably sleeved on the outer side of the movable rod 403. The upper and lower ends of the return spring 404 are respectively connected to the bottom end of the activity plate 402 and the bottom end of the inner cavity of the fixed pipe 401.

[0039] Embodiment: When the hydraulic oil inside the adjusting pipe 304 is pressed out through the oil drain port 309, it can enter the inside of the fixed pipe 401 through the pressure pipe 405. At this time, the entering hydraulic oil can apply a pressure to the activity plate 402. At this time, the return spring 404 can be compressed, and drive the movable rod 403 and the welding head 406 to move downward until the welding head 406 descends to the welding position, completing the self-positioning before welding. At this time, the longitudinal weld can be welded.

[0040] By utilizing the cooperation among the locking component 3, the linkage component 2, and the welding component 4, while the clamping component 1 self-clamps the metal filter bag under the action of the locking component 3, the radial position of the welding component 4 can be maintained unchanged through the linkage component 2, that is, the welding component 4 is always kept perpendicular to the longitudinal weld. At the same time, the upward movement process of the welding component 4 is automatically compensated through the action of the locking component 3, and the welding head 406 is always kept in the welding position. The entire welding positioning process and the clamping process are completed simultaneously, eliminating the need for a complex positioning process before welding, shortening the welding preparation time, and significantly improving the welding efficiency.

[0041] Embodiment: When the longitudinal weld is completed, the states of the clamping component 1, the linkage component 2, the locking component 3, and the welding component 4 can be maintained at this time, that is, the clamping and fixing process and the welding position of the welding component 4 are maintained. The welding component 4 is adjusted to the welding position of the transverse weld through the action of the lead screw 6. At the same time, by rotating the rotating shaft 10, the mounting plate 7 and the entire device can be driven to rotate. At this time, the welding component 4 can rotate relative to the metal filter bag and perform circumferential welding on the transverse weld until the welding process of all longitudinal and transverse welds of the metal filter bag is completed.

[0042] By utilizing the cooperation among the clamping component 1, the linkage component 2, the locking component 3, and the welding component 4 again, and through the rotation of the mounting plate 7 and the guidance of the lead screw 6, the device can quickly complete the straight welding of the longitudinal weld and perform circumferential welding on the transverse weld at the same time. The entire welding process does not require adjustment of the device, nor the use of different devices for welding. The continuous welding of the longitudinal and transverse welds can be achieved, significantly improving the practicability of the equipment and the overall welding efficiency.

[0043] Working principle and usage process: Before processing the metal filter bag, one end of the metal filter bag can be inserted between the two clamping components 1 to ensure that the metal filter bag is located between the two clamping components 1. At the same time, the device needs to be connected to an external power source, and the bottom end of the welding component 4 is kept directly above the longitudinal weld to complete the preparation before welding; Before welding the metal filter bag, the metal filter bag can be sleeved between the two clamping rings 101, and the balls 104 are kept on the outer side of the metal filter bag. When the two clamping rings 101 move closer to each other, the balls 104 can contact the outer side of the metal filter bag, and the metal filter bag is clamped and fixed through the four balls 104. At the same time, on the premise that the balls 104 keep in contact with the metal filter bag, they can roll relative to the movable ball seat 103 to assist in completing the position change of the device; When clamping and fixing the metal filter bag, the oil pump 302 can be turned on to pressurize the hydraulic oil inside the oil storage tank 301 and input it into the three-way valve 303. At this time, it can enter the inside of the two oil inlets 308 after being distributed by the three-way valve 303, that is, enter the left and right ends of the adjusting pipe 304, and apply a thrust to the two piston plates 305. At this time, the two piston plates 305 and the piston rod 306 move relatively closer, and the return spring 307 can be stretched. At the same time, the hydraulic oil between the two piston plates 305 is pressed out through the oil drain port 309; When the two piston rods 306 move relatively closer, the two adjusting seats 3010 can be synchronously pulled to move relatively closer, and drive the two clamping rings 101 to move relatively closer until the balls 104 contact the outer side of the metal filter bag, completing the clamping process of the metal filter bag. At the same time, the connecting rod 205 deflects away from the clamping ring 101. At this time, the linkage plate 203 is subjected to a thrust force and drives the two linkage plates 203 to move relatively away. At this time, the guide rod 5 and the lead screw 6 move relatively away under the guiding action of the guide groove 8, and the lead screw 6 can synchronously drive the guide motor base 11 to displace relative to the fixed guide rail 9 to maintain the input of power, and the welding assembly 4 above moves upward relative to the longitudinal weld; When the hydraulic oil inside the adjusting pipe 304 is pressed out through the oil drain port 309, it can enter the inside of the fixed pipe 401 through the pressure pipe 405. At this time, the entering hydraulic oil can apply a pressure to the movable plate 402. At this time, the return spring 404 can be compressed, and drive the movable rod 403 and the welding head 406 to move downward until the welding head 406 descends to the welding position, completing the self-positioning before welding. At this time, the longitudinal weld can be welded; After completing the clamping and fixing of the metal filter bag and the welding positioning, and after completing the welding at the specified position by the welding assembly 4, the adjusting motor 12 can be turned on to drive the lead screw 6 to rotate. At this time, the upper and lower two linkage assemblies 2 can drive the clamping assembly 1, the linkage assembly 2, the locking assembly 3, and the welding assembly 4 to displace relative to the mounting plate 7 as a whole under the guiding of the guide rod 5 and the rotation of the lead screw 6. At this time, the welding assembly 4 above can displace relative to the longitudinal weld as a whole, and complete the continuous linear welding of the longitudinal weld through the action of the welding assembly 4, completing the welding process of the longitudinal weld; When completing the welding of the longitudinal weld, the states of the clamping assembly 1, the linkage assembly 2, the locking assembly 3, and the welding assembly 4 can be maintained at this time, that is, maintaining the clamping and fixing process and the welding position of the welding assembly 4, and adjusting the welding assembly 4 to the welding position of the transverse weld through the action of the lead screw 6. At the same time, by rotating the rotating shaft 10, the mounting plate 7 and the device as a whole can be rotated. At this time, the welding assembly 4 can rotate relative to the metal filter bag and perform circumferential welding on the transverse weld until the welding processes of all the longitudinal welds and transverse welds of the metal filter bag are completed.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for welding longitudinal and transverse seams of a metal filter bag, comprising two clamping assemblies (1), characterized in that: A linkage assembly (2) is installed at both upper and lower ends between the two clamping assemblies (1); a locking assembly (3) located directly below the linkage assembly (2) is installed at the upper end between the two clamping assemblies (1); a welding assembly (4) is installed at the bottom end of the linkage assembly (2) located above; the front end of the welding assembly (4) is connected to the rear end of the locking assembly (3); a mounting plate (7) is provided at the rear end of the clamping assembly (1); guide grooves (8) are provided at both upper and lower ends of the mounting plate (7); a guide rod (5) is movably connected inside the guide groove (8) located above; a screw rod (6) is movably connected inside the guide groove (8) located below; the guide rod (5) is movably sleeved with the linkage assembly (2) above, and the screw rod (6) is threadedly connected to the linkage assembly (2) below; The locking component (3) controls the relative displacement of the two clamping components (1). When the two clamping components (1) are relatively displaced, the distance between the upper and lower linkage components (2) changes, and drives the welding component (4) to move up and down. When the distance between the two clamping components (1) changes, the distance between the guide rod (5) and the screw rod (6) changes synchronously. A rotating shaft (10) is fixedly mounted in the middle of the rear end of the mounting plate (7), and fixed guide rails (9) are fixedly mounted on both left and right sides of the guide groove (8) located below. A guide motor seat (11) is provided at the rear end of the fixed guide rail (9), and the guide motor seat (11) is movably engaged with the fixed guide rail (9) and can move up and down relative to the fixed guide rail (9). An adjusting motor (12) is mounted inside the guide motor seat (11), and an output end of the adjusting motor (12) is connected to the lead screw (6).

2. A device for welding longitudinal and transverse seams of metal filter bags according to claim 1, characterized in that: The clamping assembly (1) comprises a clamping ring (101), and the upper and lower ends of the two clamping rings (101) are both provided with extended ear plates (102). The relatively close ends of the two clamping rings (101) are provided with movable ball seats (103) diagonally, and the movable ball seats (104) are movably provided inside.

3. A device for welding longitudinal and transverse seams of metal filter bags according to claim 2, characterized in that: The linkage assembly (2) comprises a first fixed seat (201), the first fixed seat (201) is connected to the extended ear plate (102), one end of the first fixed seat (201) away from the extended ear plate (102) is movably connected to a connecting rod (205) via a rotating shaft, and one end of the connecting rod (205) opposite to the first fixed seat (201) is movably connected to a second fixed seat (202) via a rotating shaft. The linkage assembly (2) also comprises a linkage plate (203), and the left and right sides of the bottom end of the linkage plate (203) are connected to the top ends of the two second fixed seats (202).

4. The device for welding longitudinal and transverse seams of metal filter bags according to claim 3, characterized in that: A guide ear plate (204) is fixedly mounted on one end of the upper and lower linkage plates (203) that is relatively far away from each other. The upper guide ear plate (204) is movably sleeved with the guide rod (5), and the lower guide ear plate (204) is threadedly sleeved with the lead screw (6).

5. A device for welding longitudinal and transverse seams of metal filter bags according to claim 4, characterized in that: The locking assembly (3) comprises an oil storage tank (301), the interior of the oil storage tank (301) is filled with hydraulic oil, the bottom end of the oil storage tank (301) is fixedly connected to a three-way valve (303), an oil pump (302) is installed between the oil storage tank (301) and the three-way valve (303), a regulating pipe (304) is provided at the rear end of the three-way valve (303), and the left and right sides of the front end of the regulating pipe (304) are fixedly connected to oil inlets (308), and the oil inlet (308) is connected to the left and right ends of the three-way valve (303).

6. A device for welding longitudinal and transverse seams of metal filter bags according to claim 5, characterized in that: The left and right sides of the inner cavity of the regulating tube (304) are fixedly connected with piston plates (305), and the ends of the two piston plates (305) that are relatively far away are fixedly installed with piston rods (306), one end of the piston rod (306) passes through one end of the regulating tube (304) and is fixedly connected to an regulating seat (3010), and the end of the regulating seat (3010) that is away from the piston rod (306) is movably connected to a third fixed seat (3011) via a rotating shaft, and one end of the third fixed seat (3011) is connected to the clamping ring (101).

7. A device for welding longitudinal and transverse seams of metal filter bags according to claim 6, characterized in that: A return spring (307) is movably sleeved on the outer side of the piston rod (306); the left and right ends of the return spring (307) are respectively connected to one end of the piston plate (305) and one end of the inner cavity of the regulating tube (304); an oil discharge port (309) is fixedly connected to the middle of the rear end of the regulating tube (304); the other end of the oil discharge port (309) is connected to the welding assembly (4); and hydraulic oil is filled between the two piston plates (305).

8. The device for welding longitudinal and transverse seams of metal filter bags according to claim 7, characterized in that: The welding assembly (4) comprises a fixed tube (401), a pressurizing tube (405) is fixedly connected to the front side of the fixed tube (401) and close to the top end, the other end of the pressurizing tube (405) is connected to the oil discharge port (309), and a movable plate (402) is movably sleeved inside the fixed tube (401).

9. The device for welding longitudinal and transverse seams of metal filter bags according to claim 8, characterized in that: The bottom end of the movable plate (402) is fixedly connected to a movable rod (403), the bottom end of the movable rod (403) passes through the bottom end of the fixed tube (401) and is fixedly connected to a welding head (406), the welding head (406) is connected to an external welding machine through a pipeline, and a return spring (404) is movably sleeved on the outer side surface of the movable rod (403), and the upper and lower ends of the return spring (404) are respectively connected to the bottom end of the movable plate (402) and the bottom end of the inner cavity of the fixed tube (401).

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