A corrugated pipe processing and forming device

Abstract

The utility model discloses a corrugated pipe processing forming device belongs to metal tubular product processing technical field, specifically includes frame, be provided with mandrel mechanism and wave pressing mechanism on the frame, the wave pressing mechanism includes wave pressing box, the bottom rotation is connected with a plurality of lower roller in the wave pressing box, the surface of lower roller is provided with arc convex, the upper roller of sliding connection has in the wave pressing box and is located the above lower roller, the surface of upper roller is provided with the arc groove of adaptation with arc convex, the arc groove and arc convex jointly cooperate constitute the forming pair of " concave -convex occlusion", the utility model from double -wave forming upgrade is four wave forming, will the width of feeding steel band from 26mm increase greatly to 78mm, realizes the length of single -turn winding from 26mm leap to 66mm, fundamentally promoted the " feed " and " output " efficiency of equipment, satisfied the centralized demand of large -scale project, reduced the input of multiple equipment and a large number of manpower, reduced the cost.

Description

Technical Field

[0001] This utility model belongs to the field of metal pipe processing technology, specifically relating to a corrugated pipe processing and forming device. Background Technology

[0002] Corrugated pipes are widely used in construction, municipal engineering, power, and chemical industries due to their excellent flexibility, pressure resistance, and displacement compensation capabilities. A corrugated pipe forming machine is a metal forming machine tool specifically designed for producing corrugated pipes. Its core function is to continuously roll-form and lock-seam into circular pipes with a wavy shape from smooth metal strips (most commonly steel strips, but also copper and aluminum strips).

[0003] Traditional corrugated pipe forming machines use double-wave forming and narrow steel strips (22mm wide after forming). The production capacity of a single machine per shift is only about 1200 meters, which cannot meet the concentrated demand of large-scale projects. This results in the need to invest in multiple machines and a large amount of manpower, leading to high costs. Therefore, there is a need to provide a corrugated pipe processing and forming device to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a corrugated pipe processing and forming device that meets the centralized needs of large-scale projects, reduces the need for multiple pieces of equipment and a large amount of manpower, and lowers costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrugated pipe processing and forming device, including a frame, on which a mandrel mechanism and a corrugating mechanism are provided. The corrugating mechanism includes a corrugating box, and a plurality of lower rollers are rotatably connected to the bottom of the corrugating box. The surface of the lower rollers is provided with arc-shaped protrusions. An upper roller is slidably connected above the lower rollers in the corrugating box. The surface of the upper roller is provided with arc-shaped grooves adapted to the arc-shaped protrusions. The arc-shaped grooves and the arc-shaped protrusions cooperate to form a "concave-convex interlocking" forming pair.

[0006] Preferably, the depth of the arc-shaped groove on the upper roll increases progressively along the steel strip feeding direction.

[0007] Preferably, the pressure chamber includes a base plate, side plates are symmetrically fixedly connected to both sides of the base plate, a sealing plate is fixedly connected to the outer side of the side plate, a sliding cavity corresponding to the upper roller is provided on the side plate, a slider is slidably connected in the sliding cavity, the sliders on both sides are rotatably connected to the roller shaft of the upper roller, and a pressure plate is fixedly connected above the side plate.

[0008] Preferably, a nut corresponding to the slider is fixedly connected to the pressure plate, a screw is threaded onto the nut, a handwheel is fixedly connected to the top end of the screw, and the bottom end of the screw movably passes through the pressure plate and is rotatably connected to the slider.

[0009] Preferably, the roller shaft of the lower roller passes through the outside of the sealing plate and is rotatably connected to the sealing plate. One end of the roller shaft on the lower roller is fixedly connected to a drive block, and the other end of the roller shaft on the lower roller is fixedly connected to a drive gear. Multiple drive gears are meshed with each other through driven gears rotatably connected on the sealing plate.

[0010] Preferably, it also includes an angle adjustment mechanism for making the tilt angle of the rollers of the pressure box perfectly match the helix angle of the mandrel mechanism. The adjustment mechanism includes a base, which is fixedly connected to the frame. A turntable is rotatably connected above the base. The turntable is driven by a drive assembly provided on the base. The top of the turntable is fixedly connected to the pressure box.

[0011] Preferably, the drive assembly includes a worm gear and a worm. The worm gear is fixedly connected to the bottom of the turntable, and the worm is rotatably connected to the base and meshes with the worm gear. One end of the worm is fixedly connected to a drive wheel that is rotatably connected to the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention upgrades the double-wave forming process to a four-wave forming process, significantly increasing the width of the feed steel strip from 26mm to 78mm and achieving a leap in single-turn winding length from 26mm to 66mm. This fundamentally improves the "feeding" and "output" efficiency of the equipment, meets the centralized needs of large-scale projects, reduces the investment of multiple machines and a large amount of manpower, and lowers costs. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the wave compression box of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the three-dimensional structure of the wave compression box of this utility model; In the diagram: 1. Frame; 2. Pressure chamber; 21. Base plate; 22. Side plate; 23. Sealing plate; 24. Slide cavity; 25. Slider; 26. Pressure plate; 27. Nut; 28. Screw; 29. ​​Handwheel; 210. Drive block; 211. Drive gear; 212. Driven gear; 3. Lower roller; 4. Arc-shaped protrusion; 5. Upper roller; 6. Arc-shaped groove; 7. Base; 8. Turntable. Detailed Implementation

[0014] 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.

[0015] Example Please see Figure 1-4 This embodiment provides the following technical solution: a corrugated pipe processing and forming device, including a frame 1, on which a mandrel mechanism and a corrugating mechanism are provided. In some embodiments, the mandrel mechanism sequentially passes the corrugated steel strip through steps such as introduction and positioning, winding and locking, demolding and output, and fixed-length cutting to finally form the finished corrugated pipe.

[0016] The wave pressing mechanism includes a wave pressing box 2. Multiple lower rollers 3 are rotatably connected to the bottom of the wave pressing box 2. The surface of the lower rollers 3 is provided with arc-shaped protrusions 4. An upper roller 5 is slidably connected above the lower rollers 3 in the wave pressing box 2. The surface of the upper roller 5 is provided with arc-shaped grooves 6 that are adapted to the arc-shaped protrusions 4. The arc-shaped grooves 6 and the arc-shaped protrusions 4 work together to form a "concave-convex interlocking" forming pair, upgrading from double-wave forming to four-wave forming. The width of the feed steel strip is increased significantly from 26mm to 78mm, and the single-turn winding length is increased from 26mm to 66mm. This fundamentally improves the "feeding" and "output" efficiency of the equipment, meets the centralized needs of large-scale projects, reduces the investment of multiple machines and a large amount of manpower, and lowers costs.

[0017] The depth of the arc-shaped groove 6 on the upper roll 5 increases gradually along the feed direction of the steel strip, gradually achieving the purpose of progressive corrugation forming. The groove design with progressively increasing depth allows the material to deform smoothly, reduces internal stress, and effectively prevents wrinkling and tearing of wide strips during the forming process.

[0018] The pressure chamber 2 includes a base plate 21, with side plates 22 symmetrically fixedly connected to the front and rear sides of the base plate 21. A sealing plate 23 is fixedly connected to the outer side of the side plate 22. A sliding cavity 24 corresponding to the upper roller 5 is provided on the side plate 22. A slider 25 is slidably connected in the sliding cavity 24. The sliders 25 on both sides are rotatably connected to the roller shaft of the upper roller 5. A pressure plate 26 is fixedly connected above the side plate 22. The pressure plate 26 can seal the top opening of the sliding cavity 24, thereby limiting the vertical movement of the slider 25 in the sliding cavity 24 and better adjusting the slider 25 in the vertical direction within the sliding cavity 24.

[0019] A nut 27 corresponding to the slider 25 is fixedly connected to the pressure plate 26. A screw 28 is threadedly connected to the nut 27. A handwheel 29 is fixedly connected to the top of the screw 28. The bottom of the screw 28 moves through the pressure plate 26 and is rotatably connected to the slider 25. Through the drive wheel, the screw 28 can be driven to lift the slider 25 and the upper roller 5 as a whole, so as to achieve precise adjustment of the gap between the upper roller 5 and the lower roller 3, which can easily adapt to different material thicknesses and corrugation depth requirements.

[0020] The roller shaft of the lower roller 3 passes through the outside of the sealing plate 23 and is rotatably connected to the sealing plate 23. The front end of the roller shaft on the lower roller 3 is fixedly connected to a drive block 210. Through the drive block 210, one of the drive blocks 210 on the lower roller 3 can be driven to rotate by a person with a wrench, so that the lower roller 3 can rotate synchronously, which makes it easy to introduce the steel strip into the pressure box 2 before the equipment is working.

[0021] A drive gear 211 is fixedly connected to the rear end of the roller shaft on the lower roller 3. Multiple drive gears 211 are meshed with each other through driven gears 212 rotatably connected on the sealing plate 23. In some embodiments, a geared motor is fixedly connected to the frame 1. The gear on the output shaft of the geared motor is connected to one of the drive gears 211 to form a synchronous gear transmission system, which ensures that all lower rollers 3 rotate synchronously and in the same direction, and smoothly pulls the steel belt. This ensures that the linear speed of all upper rollers 5 and lower rollers 3 is consistent, ensuring the consistency of the corrugation shape and the tightness of the lock seam, and achieving stable quality in mass production.

[0022] It also includes an angle adjustment mechanism for making the tilt angle of the rollers of the pressure box 2 perfectly match the helix angle of the mandrel mechanism. The adjustment mechanism includes a base 7, which is fixedly connected to the frame 1. A turntable 8 is rotatably connected above the base 7. The turntable 8 is driven by a drive assembly set on the base 7. The top of the turntable 8 is fixedly connected to the pressure box 2.

[0023] The drive assembly includes a worm gear and a worm. The worm gear is fixedly connected to the bottom of the turntable 8, and the worm is rotatably connected to the base 7 and meshes with the worm gear. One end of the worm is fixedly connected to a drive wheel that is rotatably connected to the base 7. Through the drive wheel, the worm can drive the worm gear to rotate the turntable 8, thereby enabling the roll tilt angle of the bellows box 2 to be perfectly matched with the helix angle of the mandrel mechanism. This allows for precise and reliable tilt angle adjustment of the bellows box 2 with a self-locking function, easily adapting to the production of bellows with different helix angles.

[0024] The working principle of this utility model is as follows: When in use, the steel strip feeding device feeds the steel strip flat into the pressure box 2. The steel strip passes through multiple sets of interlocking upper rollers 5 and lower rollers 3 in sequence, and is gradually rolled into the final corrugated shape. At the same time, the upper rollers 5 and lower rollers 3 pre-process the two sides of the steel strip into the shape of male and female buckles, which prepares for subsequent locking. The pre-formed steel strip is guided to a continuously rotating mandrel mold on the mandrel mechanism. Under the action of friction, the steel strip naturally spirals around the mandrel. Near the winding point, a locking ring or locking mold is set. When the male and female buckles on both sides of the steel strip are aligned as it is wound, the locking ring applies huge radial pressure to it, forcing the male and female buckles to bite tightly and form a strong mechanical interlock. Because the mandrel mold has a smooth spiral structure, the formed corrugated pipe will automatically detach from the end of the mandrel mold during the forward movement. After detachment, the corrugated pipe is cut by a fixed-length cutting system and finally processed into a finished corrugated pipe.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrugated pipe processing and forming device, characterized in that: The machine includes a frame (1), on which a mandrel mechanism and a wave pressing mechanism are provided. The wave pressing mechanism includes a wave pressing box (2). Multiple lower rollers (3) are rotatably connected to the bottom of the wave pressing box (2). The surface of the lower rollers (3) is provided with arc-shaped protrusions (4). An upper roller (5) is slidably connected above the lower rollers (3) in the wave pressing box (2). The surface of the upper roller (5) is provided with arc-shaped grooves (6) that are adapted to the arc-shaped protrusions (4). The arc-shaped grooves (6) and the arc-shaped protrusions (4) work together to form a "concave-convex interlocking" forming pair.

2. The corrugated pipe processing and forming apparatus according to claim 1, characterized in that: The depth of the arc-shaped groove (6) on the upper roll (5) increases gradually along the steel strip feeding direction.

3. The corrugated pipe processing and forming apparatus according to claim 1, characterized in that: The pressure box (2) includes a base plate (21), side plates (22) are symmetrically fixedly connected to both sides of the base plate (21), a sealing plate (23) is fixedly connected to the outer side of the side plate (22), a sliding cavity (24) corresponding to the upper roller (5) is provided on the side plate (22), a slider (25) is slidably connected in the sliding cavity (24), the sliders (25) on both sides are rotatably connected to the roller shaft of the upper roller (5), and a pressure plate (26) is fixedly connected above the side plate (22).

4. The corrugated pipe processing and forming apparatus according to claim 3, characterized in that: A nut (27) corresponding to the slider (25) is fixedly connected to the pressure plate (26). A screw (28) is threaded onto the nut (27). A handwheel (29) is fixedly connected to the top of the screw (28). The bottom end of the screw (28) moves through the pressure plate (26) and is rotatably connected to the slider (25).

5. The corrugated pipe processing and forming apparatus according to claim 3, characterized in that: The roller shaft of the lower roller (3) passes through the outside of the sealing plate (23) and is rotatably connected to the sealing plate (23). One end of the roller shaft on the lower roller (3) is fixedly connected to a drive block (210), and the other end of the roller shaft on the lower roller (3) is fixedly connected to a drive gear (211). Multiple drive gears (211) are meshed with each other through driven gears (212) rotatably connected on the sealing plate (23).

6. The corrugated pipe processing and forming apparatus according to claim 1, characterized in that: It also includes an angle adjustment mechanism for making the tilt angle of the roller of the pressure box (2) completely match the helix angle of the mandrel mechanism. The adjustment mechanism includes a base (7), which is fixedly connected to the frame (1). A turntable (8) is rotatably connected above the base (7). The turntable (8) is driven by a drive assembly provided on the base (7). The top of the turntable (8) is fixedly connected to the pressure box (2).

7. The corrugated pipe processing and forming apparatus according to claim 6, characterized in that: The drive assembly includes a worm gear and a worm. The worm gear is fixedly connected to the bottom of the turntable (8), and the worm is rotatably connected to the base (7) and meshes with the worm gear. One end of the worm is fixedly connected to a drive wheel that is rotatably connected to the base (7).

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