An inner membrane welding apparatus

Abstract

The application provides an inner film welding device and relates to the technical field of welding processing equipment.The device comprises a welding assembly, a base, a pressing assembly, a folding component, a material guiding component and a winding component.The welding assembly comprises a machine base, a welding component, the folding component, the material guiding component and the winding component.The welding component and the material guiding component are installed on the machine base, the welding component is located below the material guiding component, the folding component is installed on the inner side of the material guiding component, and the winding component is installed on the outer side of the material guiding component.The base is arranged on one side of the machine base, and a mounting shell is fixedly installed on the top of the base.The pressing assembly is installed on the top of the mounting shell, and the pressing assembly comprises a seat component, a driving component and a pressing component.The driving component is installed on the top of the mounting shell, and the seat component is installed on the top of the driving component.The application is provided with a special seat component, which can support the sitting posture of a worker to carry out work, and the worker can rely on his own weight to press down the linkage pressing component to complete the indentation work after sitting down.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and specifically to an inner membrane welding device. Background Technology

[0002] In the field of municipal water supply and drainage pipeline repair, UV-CIPP (UV-cured in situ curing) is one of the most widely used and effective trenchless repair technologies. Its core principle is as follows: a fiberglass-reinforced flexible tube impregnated with UV-cured resin is inserted into the pipeline to be repaired by pulling or flipping it. Inflation causes the tube to fit tightly against the original pipeline wall. UV light irradiation then promotes resin curing, ultimately forming a high-strength, well-sealed integrated lining structure inside the old pipeline, achieving minimally invasive pipeline repair.

[0003] The lining system used in UV-CIPP remediation generally adopts a double-layer composite structure with an outer flexible tube and an inner permanent membrane. The forming quality of the permanent membrane directly determines the overall seepage prevention performance, structural integrity, and service life of the pipeline repair. During the permanent membrane processing, the membrane material is first rolled into a cylindrical structure, then welding strips are laid at the joint of the membrane. The welding strips are then heated and rolled using a roll welding machine to fuse the membrane joint into a single unit, ultimately forming a sealed and complete cylindrical permanent membrane. Current welding equipment has the following shortcomings: 1. Key operations such as guiding the inner membrane material, edge alignment, and positioning require real-time manual correction and fine-tuning by operators. At the same time, in the pre-processing step of rolling the sheet-like inner membrane material into a cylindrical shape, the operation relies entirely on visual observation and manual bending and rolling of the edges by operators. This is greatly affected by human factors such as personnel experience, operating conditions, and visual errors, which can easily lead to inconsistent depth and width of the rolling creases on both sides of the inner membrane, and deviations in the inner membrane docking position. 2. The equipment as a whole lacks effective safety protection and isolation measures. The feeding area and high-temperature welding operation area are mostly exposed and open structures. Personnel passing by the construction site are very likely to accidentally touch the high-speed moving feeding parts or high-temperature welding parts, which poses a safety hazard to the on-site operation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an inner membrane welding device that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An inner membrane welding device includes: a welding assembly comprising a base, a welding component, a folding component, a guiding component, and a winding component; the welding component and the guiding component are mounted on the base, the welding component is located below the guiding component, the folding component is mounted on the inner side of the guiding component, and the winding component is mounted on the outer side of the guiding component; a base is disposed on one side of the base, and a mounting cover is fixedly mounted on the top of the base; a conveying assembly is disposed inside the mounting cover; a pressing assembly is mounted on the top of the mounting cover, the pressing assembly comprising a seat component, a drive component, and a pressing component, the drive component is mounted on the top of the mounting cover, the seat component is mounted on the top of the drive component, and the pressing component is mounted inside the mounting cover. The components are located between the conveying components; a cover assembly, which is installed on one side of the drive component, the cover assembly includes a loading box and a cover cloth; the loading box is installed on one side of the drive component, and the extended cover cloth is wound inside the loading box; a feeding assembly, which is installed on one side of the top of the mounting housing, the feeding assembly includes a feeding component one and a feeding component two, the feeding component one is installed on one side of the top of the mounting housing, and the film material is wound on the feeding component one; the feeding component two is installed on the top of the feeding component one, and the welding strip is wound on the feeding component two; a connector assembly, which is installed on the side of the feeding component one near the seat component, the connector assembly includes a guide component and a connector component, the guide component is installed on the feeding component one, and the connector component is installed on the top of the guide component; Welding equipment includes the following operating modes: Welding mode: The operator sits on the seat component and applies downward pressure to the pressing component. The pressing component presses creases into the conveyed membrane material, allowing the operator to fold the membrane material according to the creases. The welding component welds the folded membrane material to the welding strip to form a sleeve. The covering cloth is hung and fixed behind the feeding component to cover and protect the feeding area. Jointing mode: Adjust the seat back to the welding assembly, rotate the second feeding component 90° to change the conveying position of the welding strip, and place the head of the new membrane material and the tail of the old membrane material in the jointing component. The personnel pull the welding strip in the second feeding component to the jointing component and cover the joint between the head end of the new membrane material and the tail end of the old membrane material; the jointing component completes the hot roller welding of the head and tail ends of the new and old membrane materials; the cover cloth is then passed over the welding component to one side of the carrier plate for hanging and fixing, and the cover cloth covers and protects the welding area.

[0006] Furthermore: the welding components include a machine base, a crossbeam, a longitudinal lifting frame, a transverse lifting frame, a heating roller, and a heating air gun; a machine base is fixedly installed on one side of the top of the machine base, a crossbeam is fixedly installed on one side of the machine base, and longitudinal lifting frames and transverse lifting frames are respectively installed at the ends of the crossbeam; a heating roller is rotatably installed at the bottom of the longitudinal lifting frame, and a heating air gun is fixedly installed at the front end of the transverse lifting frame.

[0007] Furthermore: the material guiding component includes a mounting frame, a carrier plate, an auxiliary material wheel, and a hanging component. The mounting frame is fixedly installed on the other side of the top of the machine base. The carrier plate is fixedly installed on the top of the mounting frame. An installation opening is provided on the side of the carrier plate near the winding component, and an auxiliary material wheel is rotatably installed in the installation opening. A hanging component is fixedly installed on the carrier plate on the same side as the auxiliary material wheel. The winding component includes a fixed frame and a winding roller. The fixed frame is fixedly installed on the side of the mounting frame near the carrier plate, and the winding roller is mounted on the top of the fixed frame.

[0008] Furthermore: the folding component includes a trough-shaped guide plate, a folding plate, and a pressure roller assembly. The trough-shaped guide plate is fixedly installed on the inner side of the carrier plate, the folding plate is fixedly installed inside the trough-shaped guide plate, and the pressure roller assembly is fixedly installed on the trough-shaped guide plate above the folding plate. The top of the mounting cover is provided with a discharge port corresponding to the trough-shaped guide plate.

[0009] Furthermore: the conveying assembly includes conveyor roller group one, conveyor roller group two, conveyor roller group three, guide rod and tensioning component. Conveyor roller group one, conveyor roller group two and conveyor roller group three are sequentially installed inside the mounting cover. Conveyor roller group one and conveyor roller group two are located on both sides of the pressing component. The tensioning component is installed inside the mounting cover between conveyor roller group two and conveyor roller group three. A feed inlet is provided on the mounting cover below the tensioning component. A guide rod is fixedly installed inside the mounting cover below the feed inlet.

[0010] Furthermore: the guiding component includes a bracket, a first active guide roller group, a second active guide roller group, and a guide plate. A bracket is fixedly installed on one side of the first feeding component. The first active guide roller group and the second active guide roller group are fixedly installed on the top of the bracket respectively. A guide plate is fixedly installed inside the bracket between the first active guide roller group and the second active guide roller group. The joint components include a transmission housing, a drive screw, a transmission frame, and a second heating roller. The transmission housing is fixedly installed on the top of the second drive guide roller assembly. The drive screw is rotatably installed inside the transmission housing. The transmission frame, which extends out of the transmission housing, is driven on the drive screw. The transmission frame is located above the guide plate. The second heating roller is rotatably installed inside the transmission frame.

[0011] Furthermore: the pressing component includes a lower pad, a pressing plate, strip-shaped indentation blocks, and sliding rods; the lower pad is fixedly installed inside the mounting cover, and indentation grooves are evenly distributed on the top of the lower pad. Sliding rods are fixedly installed at the four corners of the top of the lower pad. The lower pad slides on the pressing plate through the sliding rods, and the pressing plate is evenly distributed with assembly openings corresponding to the indentation grooves. Strip-shaped indentation blocks that mate with the indentation grooves are installed in the assembly openings.

[0012] Furthermore: the seat component includes a seat piece, a support plate, a turntable, a seat cushion, and a support. A turntable is fixedly installed on the top of the mounting cover, a support plate is fixedly installed on the top of the turntable, a support is fixedly installed on the top of the support plate, a seat piece is fixedly installed on the top of the support, and a seat cushion connected to the drive component is installed at the upper limit of the seat piece. The drive components include a guide post, a rotating assembly, a worm gear assembly, a handwheel, and a spring. The guide post is rotatably mounted on the top of the pressing plate. The guide post is limited through the turntable and extends into the support. The rotating assembly is rotatably mounted on the top of the support. The guide post passes through the rotating assembly and is slidably limited. The top of the guide post is rotatably connected to the bottom of the seat. A resettable spring is fitted on the guide post. The worm gear assembly is rotatably mounted inside the support and is connected to the rotating sleeve. A handwheel connected to the worm gear assembly is rotatably mounted on the outside of the support.

[0013] Furthermore: The feeding component includes a support frame, a film roll, an arc-shaped top plate, and a second hanging component. A support frame is installed on one side of the top of the mounting cover, and a placement opening is provided on one side of the support frame. The film roll is placed on the support frame through the placement opening, and the film roll is wound up through the film roll. An arc-shaped top plate is fixedly installed on the top of the support frame, and two sets of second hanging components are fixedly installed on the support frame below the placement opening. The second feeding component includes a lifting frame, a mounting box, a second worm gear assembly, a second handwheel, a material tray, an extension frame, a guide wheel assembly, and a slitting die. The mounting box is fixedly installed on the top of one side of the support frame. The lifting frame, which extends into the support frame, is rotatably installed inside the mounting box. A detachable material tray is fixedly connected to the lifting frame. The welding strip is wound up through the material tray. An extension frame is fixedly installed at the discharge end of the material tray. The guide wheel assembly and the slitting die are installed inside the extension frame. A rotating shaft connected to the lifting frame is rotatably installed inside the mounting box. The second worm gear assembly, which is connected to the rotating shaft, is assembled inside the mounting box. A second handwheel for driving the second worm gear assembly is rotatably installed on the outside of the mounting box.

[0014] Furthermore, the cover component also includes a spring shaft, an end strip, and a hanger. The spring shaft is rotatably installed inside the loading box. The cover cloth is rolled up on the spring shaft. The end of the cover cloth extends out of the loading box and is fixedly installed with an end strip. Two sets of hangers are fixedly installed on the end strip, and the hangers are respectively engaged with hanger one and hanger two.

[0015] This invention provides an inner membrane welding device. Compared with the prior art, it has the following advantages: 1. A dedicated seat component is provided. The seat component can support the operator in a seated position to carry out the work, improving the operator's comfort. At the same time, after the operator sits down, he / she can use his / her own weight to press down on the linkage pressing component to complete the indentation work. 2. The feeding component 1 and feeding component 2 of the feeding assembly realize the stable loading and synchronous conveying of the membrane material and the welding strip respectively. The feeding component 2 can be driven to rotate 90° by the worm gear component 2 to adjust the conveying position of the welding strip. In conjunction with the guide component and the joint component of the joint assembly, the new and old membrane materials can be seamlessly connected, reducing the material change time.

[0016] 3. By changing the cover cloth of the pressure cover component, targeted protection of the material loading area during welding operations and the welding area during pauses for material changing can be achieved. This effectively prevents dust and debris from contaminating materials or equipment, while also preventing personnel from accidentally touching the heating components, thus improving operational safety and the cleanliness of the working environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A schematic diagram of the welding assembly structure of the present invention is shown. Figure 1 ; Figure 3 A schematic diagram of the welding assembly structure of the present invention is shown. Figure 2 ; Figure 4 A schematic diagram of the folding component structure of the present invention is shown; Figure 5 A schematic diagram of the pressing assembly and feeding assembly of the present invention is shown; Figure 6 A schematic diagram of the structure of the second feeding component of the present invention is shown; Figure 7 A schematic diagram of the two-dispersion structure of the feeding component of the present invention is shown; Figure 8 A schematic diagram of the connector assembly structure of the present invention is shown; Figure 9 A schematic diagram of the pressing component structure of the present invention is shown; Figure 10 A schematic diagram of the internal structure of the mounting cover of the present invention is shown; Figure 11 A schematic diagram of the seat component and drive component of the present invention is shown; Figure 12 A schematic diagram of the drive component structure of the present invention is shown; Figure 13A schematic diagram of the pressing component structure of the present invention is shown; Figure 14 A schematic diagram of the pressing plate structure of the present invention is shown; As shown in the figure: 100. Welding assembly; 101. Machine base; 102. Welding components; 121. Machine base; 122. Crossbeam; 123. Longitudinal lifting frame; 124. Transverse lifting frame; 125. Heating roller one; 126. Heating air gun; 103. Folding / retracting component; 131. Trough-shaped guide plate; 132. Folding / retracting plate; 133. Pressure roller assembly; 104. Material guiding component; 141. Mounting frame; 142. Carrier plate; 143. Auxiliary material wheel; 144. Hanging component one; 145. Mounting port; 105. Rewinding component; 151. Fixing frame; 152. Rewinding roller; 200. Base; 201. Mounting cover; 202. Discharge port; 203. Inlet port; 300. Conveying assembly; 301. Conveying roller group one; 302. Conveying roller group two; 303. Conveying roller group three; 304. Guide rod; 305. Tensioning component; 400. Suppression components; 401. Seat component; 411. Seat piece; 412. Support plate; 413. Turntable; 414. Seat cushion; 415. Support; 402. Drive component; 421. Guide post; 422. Rotary assembly; 423. Worm gear assembly 1; 424. Handwheel 1; 425. Spring assembly; 403. Pressing component; 431. Lower pad; 432. Pressing plate; 433. Strip-shaped indentation block; 434. Slide rod; 435. Indentation groove; 436. Assembly port; 500. Cover assembly; 501. Loading box; 502. Covering cloth; 503. Spring shaft; 504. End strip; 505. Hanger; 600. Feeding assembly; 601. Feeding component one; 611. Support frame; 612. Membrane roll; 613. Curved top plate; 614. Hanging component two; 615. Placement opening; 602. Feeding component two; 621. Lifting frame; 622. Mounting box; 623. Worm gear component two; 624. Handwheel two; 625. Material tray; 626. Extension frame; 627. Guide wheel assembly; 628. Slitting die; 629. Rotating shaft; 700. Connector assembly; 701. Guiding component; 711. Bracket; 712. Active guide roller assembly one; 713. Active guide roller assembly two; 714. Guide plate; 702. Connector assembly; 721. Transmission housing; 722. Drive screw; 723. Conductor frame; 724. Heating roller II. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To address the technical problems in the background art, the following inner membrane welding equipment is provided: Combination Figures 1-14 As shown, the present invention provides an inner membrane welding device, comprising: a welding assembly 100, which includes a base 101, a welding component 102, a folding component 103, a guiding component 104, and a winding component 105; the welding component 102 and the guiding component 104 are mounted on the base 101, the welding component 102 is located below the guiding component 104, the folding component 103 is mounted on the inner side of the guiding component 104, and the winding component 105 is mounted on the outer side of the guiding component 104; a base 200, which is disposed on... On one side of the base 101, a mounting cover 201 is fixedly mounted on the top of the base 200; a conveying assembly 300 is disposed inside the mounting cover 201; a pressing assembly 400 is mounted on the top of the mounting cover 201, the pressing assembly 400 includes a seat component 401, a drive component 402, and a pressing component 403, the drive component 402 is mounted on the top of the mounting cover 201, the seat component 401 is mounted on the top of the drive component 402, and the pressing component 403 is installed inside the mounting cover 201. 03. The pressing component 403 is located between the conveying components 300; the capping component 500 is installed on one side of the driving component 402, and the capping component 500 includes a loading box 501 and a covering cloth 502; the loading box 501 is installed on one side of the driving component 402, and the extended covering cloth 502 is wound inside the loading box 501; the feeding component 600 is installed on one side of the top of the mounting cover 201, and the feeding component 600 includes a first feeding component 601 and a second feeding component 602, and the mounting cover 201... A feeding component 601 is installed on one side of the top, and a film material is wound on the feeding component 601; a feeding component 602 is installed on the top of the feeding component 601, and a welding strip is wound on the feeding component 602; a connector assembly 700 is installed on the side of the feeding component 601 near the seat component 401, and the connector assembly 700 includes a guide component 701 and a connector component 702. The guide component 701 is installed on the feeding component 601, and the connector component 702 is installed on the top of the guide component 701.

[0021] In the above scheme: 1. With the help of the lower pad, pressing plate, strip-shaped indentation block and slide bar of the pressing component, regular and oriented creases are pressed on the surface of the membrane material to provide positioning for the membrane material to be folded and joined; the grooved guide plate, folding plate and pressing roller group of the folding component work together to form the membrane material into a regular sleeve shape.

[0022] 2. The feeding component 1 and feeding component 2 of the feeding assembly realize the stable loading and synchronous conveying of the membrane material and the welding strip respectively. The feeding component 2 can be driven to rotate 90° by the worm gear component 2 to adjust the conveying position of the welding strip. In conjunction with the guide component and the joint component of the joint assembly, the new and old membrane materials can be seamlessly connected, reducing the material change time.

[0023] 3. The pressing component is driven by the operator's own weight to complete the membrane indentation, which requires no additional power and saves energy; the seat component can be rotated and repositioned by a worm gear, which facilitates material changing and docking operations.

[0024] 4. The spring shaft of the cover component enables automatic winding of the cover cloth, and the end strip and the hanger work together to achieve quick switching of the protection position. Through the cover cloth switching operation of the cover component, targeted protection of the material loading area during welding operations and the welding area during pause material changing can be achieved, effectively preventing dust and debris from contaminating materials or equipment, while avoiding personnel from accidentally touching the heating components, thus improving operational safety and the cleanliness of the working environment.

[0025] In this embodiment, the welding component 102 includes a machine base 121, a crossbeam 122, a longitudinal lifting frame 123, a transverse lifting frame 124, a heating roller 125, and a heating air gun 126. The machine base 121 is fixedly installed on one side of the top of the machine base 101. A crossbeam 122 is fixedly installed on one side of the machine base 121. The ends of the crossbeam 122 are respectively equipped with cross-arranged longitudinal lifting frames 123 and transverse lifting frames 124. A heating roller 125 is rotatably installed at the bottom of the longitudinal lifting frame 123, and a heating air gun 126 is fixedly installed at the front end of the transverse lifting frame 124. The heating air gun can preheat and soften the joint, ensuring full fusion between the membrane material and the welding strip, and guaranteeing a smooth and firm weld.

[0026] In this embodiment, the material guiding component 104 includes a mounting frame 141, a carrier plate 142, an auxiliary material wheel 143, and a hanging component 144. The mounting frame 141 is fixedly installed on the other side of the top of the machine base 101. The carrier plate 142 is fixedly installed on the top of the mounting frame 141. The carrier plate 142 is provided with a mounting opening 145 on the side near the winding component 105, and the auxiliary material wheel 143 is rotatably installed in the mounting opening 145. The hanging component 144 is fixedly installed on the carrier plate 142 on the same side as the auxiliary material wheel. The winding component 105 includes a fixing frame 151 and a winding roller 152. The fixing frame 151 is fixedly installed on the side of the mounting frame 141 near the carrier plate 142, and the winding roller 152 is mounted on the top of the fixing frame 151. The material guiding component provides stable support through the mounting frame and the carrier plate. The auxiliary material wheel guides and limits the finished inner film to avoid deviation and jamming during the conveying process. The hanging component provides a hanging support point for the capping component to ensure the normal use of the protective structure. The winding component, through the cooperation of the fixing frame and the winding roller, can orderly wind up the welded inner film of the sleeve to avoid the finished product being loose and messy.

[0027] In this embodiment, the folding component 103 includes a grooved guide plate 131, a folding plate 132, and a pressure roller assembly 133. The grooved guide plate 131 is fixedly installed on the inner side of the carrier plate 142, and the folding plate 132 is fixedly installed inside the grooved guide plate 131. The pressure roller assembly 133 is fixedly installed on the grooved guide plate 131 above the folding plate 132. The top of the mounting cover 201 is provided with a discharge port 202 corresponding to the grooved guide plate 131. The grooved guide plate limits and guides the film material, ensuring that the film material enters the folding area smoothly. The folding plate can gather the flat film material towards the middle, and the pressure roller assembly presses and shapes the film material during the gathering process, effectively avoiding wrinkles and displacement of the film material during folding, so that the film material forms a regular sleeve shape. The discharge port of the mounting cover corresponds to the grooved guide plate, ensuring that the film material is smoothly discharged after folding.

[0028] In this embodiment, the conveying assembly 300 includes a first conveying roller group 301, a second conveying roller group 302, a third conveying roller group 303, a guide rod 304, and a tensioning component 305. The first conveying roller group 301, the second conveying roller group 302, and the third conveying roller group 303 are sequentially installed inside the mounting cover 201. The first conveying roller group 301 and the second conveying roller group 302 are located on both sides of the pressing component 403. The tensioning component 305 is installed inside the mounting cover 201 between the second conveying roller group 302 and the third conveying roller group 303. A feed inlet 203 is provided on the mounting cover 201 below the tensioning component 305. The guide rod 304 is fixedly installed inside the mounting cover 201 below the feed inlet 203. The sequential arrangement of conveyor roller group one, conveyor roller group two, and conveyor roller group three ensures smooth and uniform conveying of the membrane material from feeding to folding. Conveyor roller group one and conveyor roller group two are symmetrically distributed on both sides of the pressing component to ensure uniform force on the membrane material during indentation and improve the regularity of the indentation. The tensioning component applies a constant traction force to the membrane material to ensure uniform tension during membrane material conveying and avoid uneven indentation depth and loose membrane material.

[0029] In this embodiment, the guiding component 701 includes a bracket 711, a first active guiding roller group 712, a second active guiding roller group 713, and a guide plate 714. The bracket 711 is fixedly installed on one side of the feeding component 601. The first active guiding roller group 712 and the second active guiding roller group 713 are fixedly installed on the top of the bracket 711 respectively. The guide plate 714 is fixedly installed inside the bracket 711 between the first active guiding roller group 712 and the second active guiding roller group 713. The connector component 702 includes a transmission housing 721, a drive screw 722, a transmission frame 723, and a second heating roller 724. The transmission housing 721 is fixedly installed on the top of the second active guide roller assembly 713. The drive screw 722 is rotatably installed inside the transmission housing 721. The transmission frame 723, which extends out of the transmission housing 721, is driven and mounted on the drive screw 722. The transmission frame 723 is located above the guide plate 714. The second heating roller 724 is rotatably installed inside the transmission frame 723. The guide component provides stable support through the bracket. The first and second active guide roller assemblies cooperate with the guide plate to limit and position the beginning and end ends of the new and old membrane materials, ensuring that they are aligned and flat. The connector component, through the cooperation of the transmission housing and the drive screw, can drive the second heating roller to move linearly. The second heating roller performs hot roll welding on the welding strips attached to the beginning and end ends of the membrane materials, ensuring that the new and old membrane materials are firmly connected by the welding strips.

[0030] In this embodiment, the pressing component 403 includes a lower pad 431, a pressing plate 432, strip-shaped indentation blocks 433, and sliding rods 434. The lower pad 431 is fixedly installed inside the mounting cover 201, and indentation grooves 435 are evenly distributed on the top of the lower pad 431. Sliding rods 434 are fixedly installed at the four corners of the top of the lower pad 431. The lower pad 431 is slidably mounted on the pressing plate 432 through the sliding rods 434. The pressing plate 432 has evenly distributed assembly openings 436 corresponding to the indentation grooves 435. Strip-shaped indentation blocks 433 that cooperate with the indentation grooves 435 are mated and installed in the assembly openings 436. The lower pad and the pressing plate cooperate to provide a stable extrusion structure for indenting the membrane material. The indentation grooves on the top of the lower pad correspond to the strip-shaped indentation blocks on the pressing plate, which can press regular directional creases on the surface of the membrane material, providing a reference for manual alignment when the membrane material is folded into a sleeve, and reducing misalignment.

[0031] In this embodiment, the seat component 401 includes a seat component 411, a support plate 412, a turntable 413, a seat cushion 414, and a support 415. The turntable 413 is fixedly installed on the top of the mounting cover 201, the support plate 412 is installed on the top of the turntable 413, the support 415 is fixedly installed on the top of the support plate 412, the seat component 411 is fixedly installed on the top of the support 415, and the seat cushion 414 connected to the drive component 402 is installed at the upper limit of the seat component 411. The drive component 402 includes a guide post 421, a rotating assembly 422, a worm gear 423, a handwheel 424, and a spring 425. The guide post 421 is rotatably mounted on the top of the pressing plate 432. The guide post 421 is limited to pass through the turntable 413 and extends into the support 415. The rotating assembly 422 is rotatably mounted on the top of the support 415. The guide post 421 passes through the rotating assembly 422 and is slidably limited. The top of the guide post 421 is rotatably connected to the bottom of the seat 414. A resettable spring 425 is fitted on the guide post 421. The worm gear 423, which is connected to the rotating sleeve, is assembled inside the support 415. The handwheel 424, which is connected to the worm gear 423, is rotatably mounted on the outside of the support 415. The seat assembly provides a stable working position for the operator through a turntable, support plate, and base. The seat cushion is linked with the drive component, which can use the operator's own weight to drive the guide column to descend, thereby driving the pressing component to complete the film indentation. The spring component can realize the automatic reset of the guide column and the pressing plate, which is convenient for adjusting the working gap. The worm gear component and the handwheel work together to drive the turntable to rotate, realizing the rotation and repositioning of the seat assembly, which is convenient for the operator to adjust the working position and expand the operating space when changing materials and docking.

[0032] In this embodiment, the feeding component 601 includes a support frame 611, a film roll 612, an arc-shaped top plate 613, and a second set of hanging components 614. The support frame 611 is installed on one side of the top of the mounting cover 201. A placement opening 615 is provided on one side of the support frame 611. The film roll 612 is placed on the support frame 611 through the placement opening 615. The film is wound up through the film roll 612. The arc-shaped top plate 613 is fixedly installed on the top of the support frame 611. Two sets of second set of hanging components 614 are fixedly installed on the support frame 611 below the placement opening 615. The second feeding component 602 includes a lifting frame 621, a mounting box 622, a second worm gear assembly 623, a second handwheel 624, a material tray 625, an extension frame 626, a guide wheel assembly 627, and a slitting die 628. The mounting box 622 is fixedly installed on the top of one side of the support frame 611. The lifting frame 621, extending into the support frame 611, is rotatably mounted inside the mounting box 622. A detachable material tray 625 is fixedly connected to the lifting frame 621. The welding strip passes through the material tray. The material tray 625 is wound up, and an extension frame 626 is fixedly installed at the discharge end of the material tray 625. The extension frame 626 is equipped with a guide wheel assembly 627 and a slitting die 628. The mounting box 622 is rotatably mounted with a rotating shaft connected to the lifting frame 621. The mounting box 622 is equipped with a worm gear component 623 that is connected to the rotating shaft for transmission. The mounting box 622 is rotatably mounted with a handwheel 624 for driving the worm gear component 623. The first feeding component facilitates the loading of the membrane roll via a support frame and placement port. The arc-shaped top plate protects the membrane roll and prevents it from becoming loose. The second hanging component provides a hanging support for the capping component. The second feeding component facilitates the assembly of the welding strip roll via a lifting frame and a material tray. The guide wheel assembly guides the welding strip. The second worm gear component, in conjunction with the second handwheel, can drive the material tray to rotate 90°, adjusting the welding strip conveying position so that it is synchronized with the joint end face of the new and old membrane materials, facilitating precise coverage of the joint by the welding strip. The slitting die can quickly cut off excess welding strip, ensuring that the length of the welding strip matches the joint gap.

[0033] In this embodiment, the pressure cap component 500 further includes a spring shaft 503, an end strip 504, and a hanger 505. The spring shaft 503 is rotatably mounted inside the loading box 501. The covering cloth 502 is rolled up on the spring shaft 503. The end of the covering cloth 502 extends out of the loading box 501 and is fixedly mounted with the end strip 504. Two sets of hangers 505 are fixedly mounted on the end strip 504, and the hangers 505 are respectively mounted and cooperated with the first hanger 144 and the second hanger 614. The spring shaft enables automatic winding of the cover cloth, eliminating the need for manual winding and improving operational convenience. The end strips, in conjunction with the hangers, allow the cover cloth to be precisely hung on hanger one or hanger two, ensuring stable coverage of the protected area. The hangers are compatible with hanger one and hanger two respectively, enabling quick switching of the cover cloth to protect the material loading area during welding operations and the welding area during material changes, effectively preventing dust and debris from contaminating materials or equipment, while also preventing personnel from accidentally touching heating components, thus improving operational safety and protective effectiveness.

[0034] Working principle and usage process of this invention: S1. Install the entire roll of film material into the placement opening 615 of the support frame 611 of the feeding component 1 601 to limit and fix the film roll 612. The arc-shaped top plate 613 protects the film roll 612 to prevent the film material from loosening. Assemble the welding strip roll on the material tray 625 of the feeding component 2 602. The welding strip passes through the guide wheel group 627 in the extension frame 626 in sequence to complete the conveying and guiding. The slitting die 628 is in a ready state.

[0035] The operator leads the end of the film material out from the feeding component 601, passes through the inlet 203 of the mounting cover 201, and after being limited by the guide rod 304, it is sequentially inserted between the first conveying roller group 301, the pressing component 403, the second conveying roller group 302, the tensioning component 305, and the third conveying roller group 303 of the conveying assembly 300. Finally, it is discharged from the outlet 202 at the top of the mounting cover 201 and connected to the grooved guide plate 131 of the folding component 103.

[0036] Check the pressure cap component 500 to ensure that the cover cloth 502 is normally wound on the spring shaft 503 of the loading box 501, and that the end strip 504 and the hanger 505 are in an unattached state; adjust the welding component 102, and adjust the height and position of the heating roller 125 and the heating air gun 126 through the longitudinal lifting frame 123 and the transverse lifting frame 124 on the crossbeam 122 to adapt to the film welding requirements.

[0037] S2: The operator sits on the seat 411 of the seat component 401 and presses the seat cushion 414 downward with the weight of his body. After the seat cushion 414 is subjected to force, it drives the guide column 421 of the drive component 402 to descend vertically in sync. The guide column 421 passes through the turntable 413 and the rotating kit 422. During the descent, the spring component 425 fitted on the guide column 421 is compressed, and the spring component 425 begins to store force.

[0038] The bottom of the guide post 421 is rotatably connected to the pressing plate 432, which synchronously drives the pressing plate 432 to move vertically downward along the slide rods 434 at the four corners of the lower pad 431 until the strip-shaped indentation block 433 at the bottom of the pressing plate 432 is embedded in the indentation groove 435 at the top of the lower pad 431, thus completing the indentation preparation.

[0039] When the conveying assembly 300 is started, the conveying roller group 1 301, conveying roller group 2 302, and conveying roller group 303 operate synchronously. The tensioning component 305 applies a constant traction force to the membrane material to ensure that the membrane material passes smoothly and at a uniform speed between the pressing components 403. The lower pad 431 cooperates with the pressing plate 432, and through the squeezing of the strip-shaped indentation block 433 and the indentation groove 435, regular directional creases are pressed on the surface of the membrane material. These creases are used for manual alignment when the membrane material is folded into a sleeve, which can effectively reduce alignment deviation.

[0040] The indented membrane material is discharged through the conveyor roller group 303 and enters the folding component 103 from the discharge port 202 of the mounting cover 201. The trough guide plate 131 limits and guides the membrane material, the folding plate 132 gathers the flat membrane material towards the middle, and the pressure roller group 133 presses and shapes the membrane material during the gathering process, so that the membrane material is gradually folded into a sleeve shape.

[0041] The feeding component 602 is started simultaneously, and the material tray 625 releases the welding strip at a uniform speed. After being guided by the guide wheel group 627, the welding strip is transported synchronously with the folded film material, accurately fitting the closed edge of the film material, and preparing for subsequent welding operations.

[0042] Operators refer to the pre-pressed creases on the membrane surface and manually align the folded membrane into a tubular shape, adjusting the edges of the membrane to ensure that the welding strip is completely fitted with the edge seam, avoiding any offset or misalignment, and ensuring welding quality.

[0043] S3: The folded membrane material and welding strip are simultaneously conveyed to the welding component 102. The heating gun 126 is activated to preheat and soften the edge seam of the membrane material and the welding strip to ensure that the two can be fully fused together. Then, the height of the heating roller 125 is adjusted by the longitudinal lifting frame 123 so that the heating roller 125 is in contact with the joint of the membrane material and the welding strip to carry out hot pressing fusion, and the edge seam of the membrane material is firmly connected by the welding strip to form a sleeve-shaped inner membrane.

[0044] After welding, the finished inner film continues to be conveyed along the carrier plate 142 of the guide component 104, guided and limited by the auxiliary material wheel 143 in the mounting port 145, and finally conveyed to the winding roller 152 of the winding component 105; the winding roller 152 rotates at a uniform speed to orderly wind up the finished inner film, completing the core operation of the welding mode.

[0045] S4: The operator turns the handwheel 424 to drive the worm gear 423. The worm gear 423 drives the rotating assembly 422 to rotate synchronously. At that time, the rotating assembly 422 is synchronously rotated by the guide post 421 of the limiting set. The guide post 421 will then be synchronously rotated by the turntable 413 that is limited and penetrated. This causes the turntable 413 to rotate and change the structure on top of it. The purpose of the change is to expand the space behind the seat 411, so that the operator can operate and connect the joint of the membrane material. When the film roll 612 of the feeding component 601 is used up, all power of the equipment is stopped, so that the tail end of the old film is stuck at the guide component 701 of the connector assembly 700, specifically between the active guide roller group 712 and the active guide roller group 713 on the bracket 711, and is limited and fixed by the guide plate 714.

[0046] The operator rotates the handwheel 424 of the drive component 402, which drives the rotating kit 422 to rotate through the worm gear component 423, thereby driving the turntable 413 to rotate and rotate the seat component 401 to the position of the corresponding feeding component 600, so that the operator can carry out material changing and docking operations.

[0047] The operator installs the new membrane roll 612 into the placement port 615 of the feeding component 601, pulls the first end of the new membrane roll, and passes it through the active guide roller group 712, the guide plate 714, and the active guide roller group 713 in sequence, so that the first end of the new membrane roll is aligned with the tail end of the old membrane roll, and simultaneously stays above the guide plate 714 of the guide component 701, thus completing the alignment of the new and old membrane rolls.

[0048] S5: The operator turns the handwheel 624 of the feeding component 602, which drives the rotating shaft and the lifting frame 621 to rotate through the worm gear 623 inside the mounting box 622. This drives the material tray 625 to rotate 90°, changing the conveying position of the welding strip and ensuring that the conveying position of the welding strip is synchronously aligned with the docking end face of the new and old film materials, so that the welding strip can accurately cover the docking point.

[0049] The operator pulls the welding strip out of the material tray 625, guides it through the guide wheel group 627, and covers the joint between the new and old film materials. Then, the slitting die 628 in the extension frame 626 is used to cut off the excess welding strip to ensure that the length of the welding strip matches the joint.

[0050] Start the connector component 702, rotate the drive structure on the outside of the transmission housing 721 that is linked with the active lead screw 722, drive the active lead screw 722 to rotate, and cause the transmission frame 723 to move vertically downward along the active lead screw 722 until the heating roller 724 inside the transmission frame 723 is attached to the joint between the welding strip and the new and old membrane materials.

[0051] Start heating roller 724 to perform hot roller pressing welding at the joint, so that the beginning and end of the new and old membrane materials are firmly connected by the welding strip, and the membrane materials are seamlessly connected. After welding, rotate the drive screw 722 in the opposite direction to drive the transmission frame 723 and heating roller 724 to rise and reset.

[0052] Reverse turn handwheel 624 to control the material feeding component 602 to rotate and reset, restoring the original conveying position of the welding strip; the operator pulls the end of the welding strip again, through the guide wheel group 627, and pulls it to the guide component 701, keeping it synchronized with the film material conveying trajectory, in preparation for subsequent welding operations; finally, turn handwheel 424 to rotate the seat component 401 back to its original working position.

[0053] S5: When the equipment is in normal welding mode, the operator pulls the end strip 504 of the pressure cap component 500 to pull the cover cloth 502 out from the spring shaft 503 of the loading box 501. The spring shaft 503 rotates under force and stores force. The cover cloth is pulled over the back of the feeding component 601, so that the hanging part 505 on the end strip 504 is fixed to the hanging part 614 on the support frame 611. The unfolded cover cloth 502 fully covers the feeding area to prevent dust and debris from falling and contaminating the film material and welding strip, thus achieving effective covering and protection of the feeding area.

[0054] When the equipment is suspended, the membrane material is replaced, or the equipment is under maintenance, the operator unties the hanger 505 and the second hanger 614. Under the reset action of the spring shaft 503, the cover cloth 502 is pulled to the other side, passing over the welding component 102, and the cover cloth is pulled to the side of the carrier plate 142 of the material guide component 104, so that the hanger 505 is fixed to the hanger 144 on the carrier plate 142. The cover cloth 502 completely covers the welding area where the welding component 102 is located, realizing dust prevention and accidental contact protection of the welding area, and improving the safety of equipment use.

[0055] After the operation is resumed or the material is changed, the hanging part 505 is unattached to the corresponding hanging part, the spring shaft 503 automatically resets, and the covering cloth 502 is rolled back into the loading box 501, completing the switching and reset of the protection mode, and preparing for the next operation.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An inner membrane welding device, characterized in that: include: The welding assembly includes a base, a welding component, a folding component, a guiding component, and a winding component; the welding component and the guiding component are mounted on the base, the welding component is located below the guiding component, the folding component is mounted on the inner side of the guiding component, and the winding component is mounted on the outer side of the guiding component. The base is located on one side of the machine base, and a mounting cover is fixedly installed on the top of the base; The conveying assembly is located inside the mounting housing; A pressing assembly is installed on top of a mounting housing. The pressing assembly includes a seat component, a drive component, and a pressing component. The drive component is installed on top of the mounting housing, the seat component is installed on top of the drive component, and the pressing component is installed inside the mounting housing. The pressing component is located between the conveying components. A capping component is mounted on one side of the drive component. The capping component includes a loading box and a covering cloth. The loading box is mounted on one side of the drive component, and the extended covering cloth is rolled up inside the loading box. A feeding assembly is installed on one side of the top of the mounting housing. The feeding assembly includes a feeding component one and a feeding component two. The feeding component one is installed on one side of the top of the mounting housing, and film material is wound on the feeding component one. The feeding component two is installed on the top of the feeding component one, and welding tape is wound on the feeding component two. A connector assembly is provided, wherein a feeding component is mounted on one side of the seat component. The connector assembly includes a guide component and a connector component. The guide component is mounted on the feeding component, and the connector component is mounted on the top of the guide component. Welding equipment includes the following operating modes: Welding mode: The operator sits on the seat component and applies downward pressure to the pressing component. The pressing component presses creases into the conveyed membrane material, allowing the operator to fold the membrane material according to the creases. The welding component welds the folded membrane material to the welding strip to form a sleeve. The covering cloth is hung and fixed behind the feeding component to cover and protect the feeding area. Jointing mode: Adjust the seat back to the welding assembly, rotate the second feeding component 90° to change the conveying position of the welding strip, and place the head of the new membrane material and the tail of the old membrane material in the jointing component. The personnel pull the welding strip in the second feeding component to the jointing component and cover the joint between the head end of the new membrane material and the tail end of the old membrane material; the jointing component completes the hot roller welding of the head and tail ends of the new and old membrane materials; the cover cloth is then passed over the welding component to one side of the carrier plate for hanging and fixing, and the cover cloth covers and protects the welding area.

2. The inner membrane welding equipment according to claim 1, characterized in that: The welding components include a machine base, a crossbeam, a longitudinal lifting frame, a transverse lifting frame, a heating roller, and a heating air gun; a machine base is fixedly installed on one side of the top of the machine base, a crossbeam is fixedly installed on one side of the machine base, and longitudinal and transverse lifting frames are respectively installed at the ends of the crossbeam. A heating roller is rotatably installed at the bottom of the longitudinal lifting frame, and a heating air gun is fixedly installed at the front end of the transverse lifting frame.

3. The inner membrane welding equipment according to claim 1, characterized in that: The material guiding component includes a mounting frame, a carrier plate, an auxiliary material wheel, and a hanging component. The mounting frame is fixedly installed on the other side of the top of the machine base. The carrier plate is fixedly installed on the top of the mounting frame. An installation opening is provided on the side of the carrier plate near the winding component, and an auxiliary material wheel is rotatably installed in the installation opening. A hanging component is fixedly installed on the carrier plate on the same side as the auxiliary material wheel. The winding component includes a fixed frame and a winding roller. The fixed frame is fixedly installed on the side of the mounting frame near the carrier plate, and the winding roller is mounted on the top of the fixed frame.

4. The inner membrane welding equipment according to claim 3, characterized in that: The folding component includes a trough-shaped guide plate, a folding plate, and a pressure roller assembly. The trough-shaped guide plate is fixedly installed on the inner side of the carrier plate, and the folding plate is fixedly installed inside the trough-shaped guide plate. The pressure roller assembly is fixedly installed on the trough-shaped guide plate above the folding plate. The top of the mounting cover is provided with a discharge port corresponding to the trough-shaped guide plate.

5. The inner membrane welding equipment according to claim 1, characterized in that: The conveying assembly includes conveyor roller group one, conveyor roller group two, conveyor roller group three, guide rod and tensioning component. Conveyor roller group one, conveyor roller group two and conveyor roller group three are installed sequentially inside the mounting cover. Conveyor roller group one and conveyor roller group two are located on both sides of the pressing component. The tensioning component is installed inside the mounting cover between conveyor roller group two and conveyor roller group three. A feed inlet is provided on the mounting cover below the tensioning component. A guide rod is fixedly installed inside the mounting cover below the feed inlet.

6. The inner membrane welding equipment according to claim 1, characterized in that: The guiding component includes a bracket, a first set of active guide rollers, a second set of active guide rollers, and a guide plate. A bracket is fixedly installed on one side of the first feeding component. The first set of active guide rollers and the second set of active guide rollers are fixedly installed on the top of the bracket, and a guide plate is fixedly installed inside the bracket between the first set of active guide rollers and the second set of active guide rollers. The joint components include a transmission housing, a drive screw, a transmission frame, and a second heating roller. The transmission housing is fixedly installed on the top of the second drive guide roller assembly. The drive screw is rotatably installed inside the transmission housing. The transmission frame, which extends out of the transmission housing, is driven on the drive screw. The transmission frame is located above the guide plate. The second heating roller is rotatably installed inside the transmission frame.

7. The inner membrane welding equipment according to claim 1, characterized in that: The pressing component includes a lower pad, a pressing plate, strip-shaped indentation blocks, and sliding rods. The lower pad is fixedly installed inside the mounting cover, and indentation grooves are evenly distributed on the top of the lower pad. Sliding rods are fixedly installed at the four corners of the top of the lower pad. The lower pad slides on the pressing plate through the sliding rods. The pressing plate has evenly distributed assembly openings corresponding to the indentation grooves. Strip-shaped indentation blocks that mate with the indentation grooves are installed in the assembly openings.

8. The inner membrane welding equipment according to claim 7, characterized in that: The seat component includes a seat piece, a support plate, a turntable, a seat cushion, and a support. A turntable is fixedly installed on the top of the mounting cover, a support plate is fixedly installed on the top of the turntable, a support is fixedly installed on the top of the support plate, a seat piece is fixedly installed on the top of the support, and a seat cushion connected to the drive component is installed at the upper limit of the seat piece. The drive components include a guide post, a rotating assembly, a worm gear assembly, a handwheel, and a spring. The guide post is rotatably mounted on the top of the pressing plate. The guide post is limited through the turntable and extends into the support. The rotating assembly is rotatably mounted on the top of the support. The guide post passes through the rotating assembly and is slidably limited. The top of the guide post is rotatably connected to the bottom of the seat. A resettable spring is fitted on the guide post. The worm gear assembly is rotatably mounted inside the support and is connected to the rotating sleeve. A handwheel connected to the worm gear assembly is rotatably mounted on the outside of the support.

9. The inner membrane welding equipment according to claim 1, characterized in that: The feeding component includes a support frame, a film roll, an arc-shaped top plate, and a second hanging component. A support frame is installed on one side of the top of the mounting cover, and a placement opening is provided on one side of the support frame. The film roll is placed on the support frame through the placement opening, and the film roll is wound up through the film roll. An arc-shaped top plate is fixedly installed on the top of the support frame, and two sets of second hanging components are fixedly installed on the support frame below the placement opening. The second feeding component includes a lifting frame, a mounting box, a second worm gear assembly, a second handwheel, a material tray, an extension frame, a guide wheel assembly, and a slitting die. The mounting box is fixedly installed on the top of one side of the support frame. The lifting frame, which extends into the support frame, is rotatably installed inside the mounting box. A detachable material tray is fixedly connected to the lifting frame. The welding strip is wound up through the material tray. An extension frame is fixedly installed at the discharge end of the material tray. The guide wheel assembly and the slitting die are installed inside the extension frame. A rotating shaft connected to the lifting frame is rotatably installed inside the mounting box. The second worm gear assembly, which is connected to the rotating shaft, is assembled inside the mounting box. A second handwheel for driving the second worm gear assembly is rotatably installed on the outside of the mounting box.

10. The inner membrane welding equipment according to claim 1, characterized in that: The cover component also includes a spring shaft, end strips, and hangers. The spring shaft is rotatably installed inside the loading box. The cover cloth is rolled up on the spring shaft. The end of the cover cloth extends out of the loading box and is fixedly installed with an end strip. Two sets of hangers are fixedly installed on the end strip, and the hangers are respectively hung and cooperated with hanger one and hanger two.

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