Filter element and filter screen welding and positioning tool

Abstract

The utility model relates to the technical field of filter screen welding, in particular to a filter element filter screen welding positioning tool which comprises a workbench, an L-shaped frame capable of bearing a positioning mechanism, the positioning mechanism capable of being adjusted according to a filter screen and clamped in the filter screen and two fixing mechanisms, and a rectangular hole is formed in one end of the top face of the workbench. According to the utility model, a plurality of propping rollers are sleeved with a curled filter screen, then the rotation and height of a pipe body are controlled by starting a driving motor and two hydraulic cylinders, so that the angle and height of the filter screen are adjusted, an electric push rod is started to drive a movable ring to move, and the movable ring drives a lantern ring to synchronously move in a deviating manner through a plurality of pull ropes; the movable ring and the lantern ring drive the multiple abutting rollers to be away from the pipe body synchronously through the adjacent supporting arms, the filter screen which is curled to be in a barrel shape is expanded and pulled to a proper degree, then the two air cylinders are started to enable the two pressing plates to abut against the filter screen, and therefore the filter screen is fixed, a user can conveniently unfold the filter screen, and welding operation of the filter screen is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of filter screen welding technology, specifically a filter element and filter screen welding positioning tool. Background Technology

[0002] There are many types of filter cartridges available, including cylindrical ones. The filter screens used inside are also mostly cylindrical. If the filter screen is made of metal, it needs to be welded. This is because the raw material for these metal filter screens is generally a metal sheet with filter holes. The sheet is rolled into a cylindrical shape by a plate rolling machine. Due to the plasticity of metal, the cylindrical sheet is not easy to restore. However, after the sheet is rolled, especially a thin sheet, the resulting cylindrical filter screen may have an inner diameter that is too small. It is difficult to unroll when it is rolled up. The filter screen needs to be unrolled manually and the joints at both ends of the filter screen need to be fixed. Then, an automated welding machine is used to weld the joints at both ends of the filter screen together. The process is quite cumbersome, and the edges of thin metal sheets have gaps. The manual unrolling process may cause injury to personnel, which is quite inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a welding and positioning fixture for filter elements and screens to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A filter element / screen welding and positioning fixture, comprising:

[0006] The system includes a workbench, an L-shaped frame capable of supporting the positioning mechanism, a positioning mechanism that can be adjusted and locked inside the filter screen, and two fixing mechanisms. A rectangular hole is opened at one end of the top surface of the workbench. The long arm of the L-shaped frame is slidably fitted into the rectangular hole on the workbench. The positioning mechanism is rotatably connected to one side of the long arm of the L-shaped frame. The positioning mechanism includes a tube body with one end sealed. One end of the tube body is rotatably connected to one side of the long arm of the L-shaped frame, and a moving ring and a collar are slidably fitted onto the outer wall of the tube body. Multiple U-shaped plates are provided on the outer wall of the tube body. A roller is rotatably connected between the two arms of any U-shaped plate. Support arms are rotatably connected to both ends of one side of any U-shaped plate. One end of each of the two support arms on any U-shaped plate is rotatably connected to the outer wall of the moving ring and the outer wall of the collar, respectively. The two fixing mechanisms are located on opposite sides of the positioning mechanism.

[0007] Furthermore, the short arm of the L-shaped frame is fixedly connected to a motor box, and a drive motor is installed inside the motor box. The motor shaft of the drive motor passes through one side of the L-shaped frame and is fixedly connected to one end of the tube body.

[0008] Furthermore, the other end of the tube is fixedly connected to a connecting ring, and an electric push rod is rotatably sleeved on the inner side wall of the connecting ring. The electric push rod is located inside the tube. Two sliding grooves are opened on the outer side wall of the tube, and a locking block is set inside the tube. The two ends of the locking block pass through the two sliding grooves respectively, and both ends of the locking block are fixedly connected to the inner side wall of the moving ring. The movable end of the electric push rod is rotatably connected to one side of the locking block.

[0009] Furthermore, the workbench top surface is fixedly connected to two hydraulic cylinders, one of which is fixedly connected to the short arm of the L-shaped frame, and the other is fixedly connected to a support block. The top surface of the support block is an arc-shaped surface, and a connecting pipe is fixedly connected to one side of the connecting ring, with the connecting pipe located above the support block.

[0010] Furthermore, the outer wall of the connecting ring is rotatably connected to multiple guide wheels, and one side of the moving ring is fixedly connected to multiple pull ropes, with each pull rope corresponding to one of the multiple guide wheels. One end of each pull rope passes over the corresponding guide wheel, and one end of each pull rope is fixedly connected to the outer wall of the collar.

[0011] Furthermore, the fixing mechanism includes:

[0012] The system includes a vertical plate, a pressure plate, and a cylinder. The bottom end of the vertical plate is fixedly connected to the top surface of the workbench. The pressure plate is located on one side of the vertical plate, and the cylinder is fixedly connected to the other side of the vertical plate. The movable end of the cylinder passes through one side of the vertical plate and is fixedly connected to the center of one side of the pressure plate.

[0013] Furthermore, the upright plate has multiple sliding holes on one side, and the pressure plate has multiple limiting rods fixedly connected to one side. The multiple sliding holes correspond one-to-one with the multiple limiting rods, and the outer side wall of any limiting rod is slidably sleeved with the inner side wall of the corresponding sliding hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By placing the curled filter screen onto multiple rollers, and then starting the drive motor to rotate the tube and rollers, the angle of the filter screen can be adjusted. Two hydraulic cylinders can be activated to move the tube and rollers upwards, adjusting the height of the filter screen. Then, the user can activate an electric push rod to move a moving ring, which, through multiple pull ropes, moves a collar in opposite directions. This causes the moving ring and collar, via adjacent support arms, to move multiple rollers away from the tube, thus stretching the curled, cylindrical filter screen to a suitable extent. Finally, two cylinders are activated to press two pressure plates against the filter screen, fixing it in place and facilitating the user's unfolding of the filter screen for welding operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning mechanism structure in this utility model;

[0018] Figure 3 This is a schematic diagram showing the positional relationship between the tube body, collar, moving ring, and U-shaped plate in this utility model;

[0019] Figure 4 This is an exploded view of the internal structure of the tube body in this utility model.

[0020] In the diagram: 100, workbench; 200, L-shaped frame; 210, motor box; 220, hydraulic cylinder; 230, support block; 300, positioning mechanism; 310, tube body; 311, slide groove; 320, U-shaped plate; 321, abutment roller; 322, support arm; 330, moving ring; 331, locking block; 332, pull rope; 340, collar; 350, electric push rod; 360, connecting ring; 361, guide wheel; 362, connecting pipe; 400, fixing mechanism; 410, upright plate; 420, pressure plate; 430, cylinder; 440, limit rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 In this embodiment of the utility model, a filter element / screen welding positioning fixture includes:

[0023] The system comprises a workbench 100, an L-shaped frame 200 capable of supporting the positioning mechanism 300, the positioning mechanism 300 adjustable to fit inside the filter screen, and two fixing mechanisms 400. A rectangular hole is provided at one end of the top surface of the workbench 100. The long arm of the L-shaped frame 200 is slidably fitted into the rectangular hole on the workbench 100. The positioning mechanism 300 is rotatably connected to one side of the long arm of the L-shaped frame 200. The positioning mechanism 300 includes a tube 310, which is a one-end sealed structure. One end of the tube 310 is connected to the long arm of the L-shaped frame 200. One side is rotatably connected, and the outer wall of the tube body 310 is slidably sleeved with a moving ring 330 and a collar 340. The outer wall of the tube body 310 is provided with multiple U-shaped plates 320. A roller 321 is rotatably connected between the two arms of any U-shaped plate 320. Support arms 322 are rotatably connected to both ends of one side of any U-shaped plate 320. One end of the two support arms 322 on any U-shaped plate 320 is rotatably connected to the outer wall of the moving ring 330 and the outer wall of the collar 340, respectively. Two fixing mechanisms 400 are located on opposite sides of the positioning mechanism 300.

[0024] Specifically, a cylindrical filter screen, formed by bending it through a plate rolling machine, is fitted onto multiple abutment rollers 321. These rollers 321 are circumferentially distributed, ensuring they are all located inside the cylindrical filter screen. The user can then move the collar 340 and the moving ring 330 in opposite directions, causing them to simultaneously move away from or towards the tube body 310 via adjacent support arms 322 against multiple U-shaped plates 320. This controls the rollers 321 to form appropriately sized support members inside the cylindrical filter screen, supporting it according to its specifications. The filter screen, after being bent by the plate rolling machine, remains curled and fitted onto the rollers 321 due to the plasticity of the metal. Two fixing mechanisms 400 further secure the filter screen, which is then welded using automated welding equipment. This unfolds the curled filter screen to a suitable degree, facilitating welding operations.

[0025] Example 1

[0026] like Figure 1-4 As shown, in this embodiment, the short arm of the L-shaped frame 200 is fixedly connected to a motor box 210, and a drive motor is installed inside the motor box 210. The motor shaft of the drive motor passes through one side of the L-shaped frame 200 and is fixedly connected to one end of the tube body 310. A connecting ring 360 is fixedly connected to the other end of the tube body 310, and an electric push rod 350 is rotatably sleeved on the inner side wall of the connecting ring 360. The electric push rod 350 is located inside the tube body 310. Two sliding grooves 311 are opened on the outer side wall of the tube body 310, and a locking block 331 is provided inside the tube body 310. The two ends of the locking block 331 are... The two slides 311 are not connected, and both ends of the locking block 331 are fixedly connected to the inner wall of the moving ring 330. The movable end of the electric push rod 350 is rotatably connected to one side of the locking block 331. Two hydraulic cylinders 220 are fixedly connected to the top surface of the worktable 100. The movable end of one hydraulic cylinder 220 is fixedly connected to the short arm of the L-shaped frame 200, and the movable end of the other hydraulic cylinder 220 is fixedly connected to the support block 230. The top surface of the support block 230 is an arc-shaped surface. A connecting pipe 362 is fixedly connected to one side of the connecting ring 360, and the connecting pipe 362 is located above the support block 230.

[0027] In this embodiment, starting the drive motor can drive the tube body 310 to rotate, and the tube body 310 drives multiple rollers 321 to rotate synchronously through the moving ring 330, support arm 322 and U-shaped plate 320. This causes the rollers 321 to drive the filter screen fitted on the rollers 321 to rotate synchronously, adjusting the filter screen angle. Starting two hydraulic cylinders 220 can drive the L-shaped frame 200 to move, and the support block 230 supports the connecting tube 362 to move synchronously, thereby adjusting the height of the filter screen. When the filter screen is fitted on the rollers 321, another hydraulic cylinder 220 can be started to temporarily disengage the support block 230 from the connecting tube 362, making it easier to fit the filter screen on the rollers 321. Starting the electric push rod 350 can drive the moving ring 330 to move, thereby adjusting the position of the moving ring 330 on the tube body 310.

[0028] like Figure 3-4 As shown, in this embodiment, multiple guide wheels 361 are rotatably connected to the outer wall of the connecting ring 360, and multiple pull ropes 332 are fixedly connected to one side of the moving ring 330. The multiple pull ropes 332 correspond one-to-one with the multiple guide wheels 361. One end of each pull rope 332 passes around the corresponding guide wheel 361, and one end of each pull rope 332 is fixedly connected to the outer wall of the collar 340.

[0029] In practice, when the electric push rod 350 is activated to adjust the moving ring 330 to move towards one end of the tube body 310, the moving ring 330 will simultaneously pull the collar 340 to move the same distance in the opposite direction through multiple pull ropes 332. When the moving ring 330 moves towards the other end of the tube body 310, the multiple pull ropes 332 will loosen, and the filter screen can remain curled due to its own metal plasticity, pressing the multiple abutment rollers 321. This causes the multiple U-shaped plates 320 pressed by the filter screen to naturally press the collar 340 to move the same distance in the opposite direction, keeping the multiple U-shaped plates 320 in a straight state. If there is no filter screen on the abutment roller 321, the abutment roller 321 can be manually pressed to move the collar 340 to a suitable position, or the collar 340 can be manually moved to a suitable position to keep the U-shaped plate 310 straight.

[0030] like Figure 1 As shown, in this embodiment, the fixing mechanism 400 includes:

[0031] The upright plate 410, the pressure plate 420, and the cylinder 430 are provided. The bottom end of the upright plate 410 is fixedly connected to the top surface of the workbench 100. The pressure plate 420 is located on one side of the upright plate 410. The cylinder 430 is fixedly connected to the other side of the upright plate 410. The movable end of the cylinder 430 passes through one side of the upright plate 410 and is fixedly connected to the center of one side of the pressure plate 420.

[0032] In practice, after the filter screen is placed on multiple abutment rollers 321 and the multiple abutment rollers 321 are adjusted to a suitable position to support the filter screen, two cylinders 430 can be activated to drive two pressure plates 420 to clamp the filter screen, so that the filter screen is in close contact with the abutment rollers 321 and is not easy to move on the abutment rollers 321, thereby further improving the fixing effect of the filter screen.

[0033] Example 2

[0034] Based on Embodiment 1, the service life of cylinder 430 is improved by setting a limit rod 440.

[0035] like Figure 1 As shown, in this embodiment, a plurality of sliding holes are provided on one side of the upright plate 410, and a plurality of limiting rods 440 are fixedly connected to one side of the pressure plate 420. The plurality of sliding holes correspond one-to-one with the plurality of limiting rods 440, and the outer side wall of any limiting rod 440 is slidably sleeved with the inner side wall of the corresponding sliding hole.

[0036] In practice, the pressure plate 420 is limited by the limit rod 440 inside the adjacent sliding hole, so that the pressure plate 420 is not easy to tilt when it moves. The limit rod 440 can also share the force of the cylinder 430, thus improving the service life of the cylinder 430.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding and positioning fixture for filter elements and screens, characterized in that, include: The workbench (100) has a rectangular hole at one end of its top surface; The L-shaped frame (200) has its long arm slidably fitted into the rectangular hole on the workbench (100); A positioning mechanism (300) is rotatably connected to one side of the long arm of the L-shaped frame (200). The positioning mechanism (300) includes a tube body (310), and the tube body (310) is a one-end sealed structure. One end of the tube body (310) is rotatably connected to one side of the long arm of the L-shaped frame (200). A moving ring (330) and a collar (340) are slidably sleeved on the outer wall of the tube body (310). A plurality of U-shaped plates (320) are provided on the outer wall of the tube body (310). A roller (321) is rotatably connected between the two arms of any U-shaped plate (320). A support arm (322) is rotatably connected to both ends of one side of any U-shaped plate (320). One end of the two support arms (322) on any U-shaped plate (320) is rotatably connected to the outer wall of the moving ring (330) and the outer wall of the collar (340) respectively. Two fixing mechanisms (400) are located on opposite sides of the positioning mechanism (300).

2. The filter element / screen welding positioning fixture according to claim 1, characterized in that, The fixing mechanism (400) includes: The bottom end of the upright plate (410) is fixedly connected to the top surface of the workbench (100); A pressure plate (420) is located on one side of the upright plate (410); A cylinder (430) is fixedly connected to the other side of the upright plate (410). The movable end of the cylinder (430) passes through one side of the upright plate (410) and is fixedly connected to the center of one side of the pressure plate (420).

3. The filter element / screen welding positioning fixture according to claim 1, characterized in that, The short arm of the L-shaped frame (200) is fixedly connected to a motor box (210), and a drive motor is installed inside the motor box (210). The motor shaft of the drive motor passes through one side of the L-shaped frame (200) and is fixedly connected to one end of the tube body (310).

4. The filter element / screen welding positioning fixture according to claim 3, characterized in that, The other end of the tube (310) is fixedly connected to a connecting ring (360), and an electric push rod (350) is rotatably sleeved on the inner side wall of the connecting ring (360). The electric push rod (350) is located inside the tube (310). Two sliding grooves (311) are opened on the outer side wall of the tube (310), and a locking block (331) is provided inside the tube (310). The two ends of the locking block (331) pass through the two sliding grooves (311) respectively, and both ends of the locking block (331) are fixedly connected to the inner side wall of the moving ring (330). The movable end of the electric push rod (350) is rotatably connected to one side of the locking block (331).

5. The filter element / screen welding and positioning fixture according to claim 4, characterized in that, The outer wall of the connecting ring (360) is rotatably connected to multiple guide wheels (361), and one side of the moving ring (330) is fixedly connected to multiple pull ropes (332), with each pull rope (332) corresponding to one of the multiple guide wheels (361). One end of each pull rope (332) passes over the corresponding guide wheel (361), and one end of each pull rope (332) is fixedly connected to the outer wall of the collar (340).

6. The filter element / screen welding positioning fixture according to claim 5, characterized in that, Two hydraulic cylinders (220) are fixedly connected to the top surface of the workbench (100). The movable end of one hydraulic cylinder (220) is fixedly connected to the short arm of the L-shaped frame (200), and the movable end of the other hydraulic cylinder (220) is fixedly connected to a support block (230). The top surface of the support block (230) is an arc-shaped surface. A connecting pipe (362) is fixedly connected to one side of the connecting ring (360), and the connecting pipe (362) is located above the support block (230).

7. The filter element / screen welding and positioning fixture according to claim 2, characterized in that, The upright plate (410) has multiple sliding holes on one side, and the pressure plate (420) has multiple limiting rods (440) fixedly connected to one side. The multiple sliding holes correspond one-to-one with the multiple limiting rods (440), and the outer side wall of any limiting rod (440) is slidably sleeved with the inner side wall of the corresponding sliding hole.

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