Pipe feeding device

Abstract

The application discloses a pipe feeding device, which comprises a workbench, a tensioning assembly and a rolling conveying assembly, the rolling conveying assembly is used for conveying the pipe and is arranged on the workbench; the rolling conveying assembly comprises a first rolling conveying assembly, a second rolling conveying assembly and a connecting assembly, the end portions of the first rolling conveying assembly and the second rolling conveying assembly are hinged with the connecting assembly, and a space for the pipe to pass through is arranged between the first rolling conveying assembly and the second rolling conveying assembly, and the tensioning assembly is used for driving the first rolling conveying assembly and the second rolling conveying assembly to move close to or away from each other. Through the cooperation of the first rolling conveying assembly, the second rolling conveying assembly, the connecting assembly and the tensioning assembly, the first rolling conveying assembly and the second rolling conveying assembly located on the two sides of the pipe respectively have power to convey the pipe, so that the pipe cannot slip during the conveying process.

Description

Technical Field

[0001] This invention relates to the field of pipe feeding device technology, and more particularly to a pipe feeding device. Background Technology

[0002] Roller feeders are used to convey granular, powdery, or flaky materials. They can save labor intensity, have a long service life, and have high conveying efficiency and accuracy, which can significantly improve productivity. Therefore, they are widely used in various fields.

[0003] When conveying pipes, current roller feeders all use a drive force on a roller located on one side of the pipe to rotate and move the pipe forward. With this method, when the outer wall of the pipe is relatively smooth or the pipe is heavy, the pipe is prone to slippage during the conveying process, which reduces the conveying efficiency. In addition, the existing roller feeders have a relatively complex structure and are inconvenient to operate. Summary of the Invention

[0004] The main objective of this invention is to propose a pipe feeding device that addresses the technical problem of insufficient power on both sides of existing pipe feeding devices, which easily leads to slippage during the conveying process.

[0005] To achieve the above objectives, the present invention proposes a pipe feeding device, including a worktable, a tensioning assembly, and a rolling conveying assembly, wherein the rolling conveying assembly is used to convey pipes and is disposed on the worktable;

[0006] The rolling conveying assembly includes a first rolling conveying assembly, a second rolling conveying assembly, and a connecting assembly. The ends of the first rolling conveying assembly and the second rolling conveying assembly are hinged to the connecting assembly, and there is a gap between the first rolling conveying assembly and the second rolling conveying assembly for the pipe to pass through. The tensioning assembly is used to move the first rolling conveying assembly and the second rolling conveying assembly closer to or further away from each other.

[0007] Preferably, the connecting assembly includes a first rotating shaft, a first gear, and a first transmission wheel. The first gear and the first transmission wheel are respectively located at both ends of the first rotating shaft, and the first gear is meshed with the first rolling conveying assembly, and the first transmission wheel is drivingly connected to the second rolling conveying assembly.

[0008] Preferably, the first rolling conveyor assembly includes a first connecting part, a second gear, a first roller, a second rotating shaft, and a first mounting bracket. The first mounting bracket is disposed on the worktable. The first connecting part is hinged to the first rotating shaft. The second gear is meshed with the first gear. The second rotating shaft passes through the first mounting bracket, the first connecting part, and the second gear in sequence, and its top end is connected to the first roller for transmission, so that when the first gear drives the second gear to rotate, the second rotating shaft and the first roller can rotate synchronously.

[0009] Preferably, the second rolling conveyor assembly includes a second connecting part, a second transmission wheel, a second roller, a third rotating shaft, a second mounting bracket, and a first driving member. The second mounting bracket is disposed on the worktable. The second connecting part is hinged to the first rotating shaft. The second transmission wheel is located at the lower end of the third rotating shaft and is drivenly connected to the first transmission wheel. The upper end of the third rotating shaft passes through the second mounting bracket and the second connecting part in sequence and is drivenly connected to the second roller. The output end of the first driving member is drivenly connected to the third rotating shaft, so that the third rotating shaft can drive the first transmission wheel and the second roller to rotate synchronously.

[0010] The first roller and the second roller are provided with the aforementioned interval.

[0011] Preferably, the second rotating shaft, the first roller, the third rotating shaft, and the second roller are each provided with multiple sets;

[0012] The outer walls of the second and third rotating shafts are each provided with a third transmission wheel, and the multiple third transmission wheels are connected by a transmission belt, so that the movement trends of the multiple second rotating shafts or the multiple third rotating shafts are consistent.

[0013] Preferably, the tensioning assembly includes a second driving member, a third gear, and a rack. The second driving member is fixed to one side of the worktable, and its output end is connected to the first mounting bracket for transmission. The third gear is mounted on the worktable.

[0014] The rack includes a first rack and a second rack. The first rack is fixed to the first mounting bracket, and the second rack is fixed to the second mounting bracket. The first rack and the second rack are located on both sides of the third gear and are both meshed with the third gear, so that the first rack and the second rack move in opposite directions.

[0015] Preferably, the workbench is further provided with a guide rail, and a slider is provided below both the first mounting bracket and the second mounting bracket, the slider being movably mounted on the guide rail.

[0016] Preferably, the first mounting frame is further provided with an auxiliary conveying assembly, which includes an auxiliary roller and a fourth rotating shaft. The fourth rotating shaft rotatably passes through the first mounting frame and its top end is drivenly connected to the auxiliary roller. The second mounting frame is also provided with the auxiliary conveying assembly, and the fourth rotating shaft rotatably passes through the second mounting frame and its top end is drivenly connected to the auxiliary roller.

[0017] Preferably, the workbench is further provided with supporting rollers for supporting the bottom of the pipe.

[0018] Preferably, the workbench is further provided with a sensing component for sensing the passage of the pipe.

[0019] The pipe feeding device of the present invention has the following beneficial effects: by cooperating with the first rolling conveying component, the second rolling conveying component and the connecting component, the first rolling conveying component and the second rolling conveying component located on both sides of the pipe have power to convey the pipe, so that the pipe will not slip during the conveying process. A tensioning component is also provided to drive the first rolling conveying component and the second rolling conveying component to move closer or further apart, which facilitates the conveying of pipes with different outer diameters, and also facilitates the clamping and discharge of the pipe. Attached Figure Description

[0020] 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 the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a structure of an embodiment of the pipe feeding device of the present invention;

[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the pipe feeding device of the present invention after removing the outer cover;

[0024] Figure 4 This is a schematic diagram of the pipe feeding device of the present invention from another angle after the outer cover is removed;

[0025] Figure 5 This is a schematic diagram of the bottom structure of the pipe feeding device of the present invention after the workbench has been removed;

[0026] Figure 6 This is a side view of the pipe feeding device of the present invention.

[0027] Explanation of icon numbers:

[0028]

[0029]

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the figure. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] This invention proposes a pipe feeding device. This device is mainly used for conveying pipes, and the entire device employs dual-sided power to prevent slippage of the pipes during transport.

[0035] In one embodiment of the present invention, such as Figures 1 to 6 As shown, a pipe feeding device includes a workbench 1, a tensioning assembly 2, and a rolling conveying assembly 3. The rolling conveying assembly 3 is used to convey pipes and is disposed on the workbench 1.

[0036] The rolling conveying assembly 3 includes a first rolling conveying assembly 31, a second rolling conveying assembly 32, and a connecting assembly 33. The ends of the first rolling conveying assembly 31 and the second rolling conveying assembly 32 are both hinged to the connecting assembly 33, and a gap 34 is provided between the first rolling conveying assembly 31 and the second rolling conveying assembly 32 for the passage of pipes. The tensioning assembly 2 is used to drive the first rolling conveying assembly 31 and the second rolling conveying assembly 32 to move closer to or further away from each other.

[0037] Specifically, such as Figures 1 to 6 As shown, the area on the workbench 1 is the conveying area for pipes. A rolling conveyor assembly 3 is provided on the workbench. The first rolling conveyor assembly 31 and the second rolling conveyor assembly 32 are respectively arranged on both sides of the workbench 1, with a gap 34 left in the middle for the pipes (not shown in the figure) to pass through. After the pipes are placed in the gap 34, they can be transported forward by the first rolling conveyor assembly 31 and the second rolling conveyor assembly 32. One end of the first rolling conveyor assembly 31 and the second rolling conveyor assembly 32 are both hinged to the connecting assembly 33. Under the drive of the tensioning assembly 2, the first rolling conveyor assembly 31 and the second rolling conveyor assembly 32 can move closer to each other or further away, so as to facilitate the transport of pipes of different diameters and also to facilitate the clamping and discharge of the pipes.

[0038] Furthermore, the connecting component 33 includes a first rotating shaft 331, a first gear 332, and a first transmission wheel 333. The first gear 332 and the first transmission wheel 333 are located at the two ends of the first rotating shaft 331, and the first gear 332 is meshed with the first rolling conveying component 31, and the first transmission wheel 333 is connected to the second rolling conveying component 32 in a transmission connection.

[0039] Thus, both the first rolling conveyor assembly 31 and the second rolling conveyor assembly 32 are hinged to the outer wall of the first rotating shaft 331. The connecting assembly 33 also includes a first gear 332 and a first transmission wheel 333. The first gear 332 is located above the first rotating shaft 331, and the first transmission wheel 333 is located below the first rotating shaft 331. The first gear 332 is meshed with the first rolling conveyor assembly 31. When the first rotating shaft 331 drives the first gear 332 to rotate, the movement direction of the first rolling conveyor assembly 31 is the same as that of the first gear 332. The first transmission wheel 333 is connected to the second rolling conveyor assembly 32. Under the drive of the second rolling conveyor assembly 32, the first transmission wheel 333 and the first rotating shaft 331 rotate, thereby driving the movement of the first transmission wheel 333, the first rotating shaft 331, the first gear 332, and the first rolling conveyor assembly 31 through the second rolling conveyor assembly 32.

[0040] Furthermore, the first rolling conveyor assembly 31 includes a first connecting part 311, a second gear 312, a first roller 313, a second rotating shaft 314, and a first mounting frame 315. The first mounting frame 315 is disposed on the worktable 1. The first connecting part 311 is hinged to the first rotating shaft 331. The second gear 312 is meshed with the first gear 332. The second rotating shaft 314 passes through the first mounting frame 315, the first connecting part 311, and the second gear 312 in sequence, and its top end is connected to the first roller 313 for transmission, so that when the first gear 332 drives the second gear 312 to rotate, the second rotating shaft 314 and the first roller 313 can rotate synchronously.

[0041] Specifically, such as Figure 1 and Figure 6 As shown, the first rolling conveyor assembly 31 includes a first connecting part 311, a second gear 312, a first roller 313, a second rotating shaft 314, and a first mounting frame 315. The first connecting part 311 is hinged to the first rotating shaft 331, allowing the first rolling conveyor assembly 31 to move freely along the first rotating shaft 331. The second gear 312 meshes with the first gear 332, and when the first gear 332 rotates, it drives the second gear 312 to rotate synchronously, thereby driving the rotation of the second rotating shaft 314 and the first roller 313 at its top. The first connecting part 311, the second gear 312, the first roller 313, and the second rotating shaft 314 are all mounted on the first mounting frame 315, which is mounted on the worktable 1. This facilitates the tensioning assembly 2 to drive the movement of the entire first rolling conveyor assembly 31. In summary, the second rolling conveyor assembly 32 drives the first transmission wheel 333, the first rotating shaft 331, and the first gear 332 to run. Then, the second gear 312 rotates, driving the second rotating shaft 314 and the first roller 313 located on one side of the pipe to rotate, causing the pipe in the gap 23 to move forward. At this time, the tensioning assembly 2 drives the first mounting bracket 315 to move. Since the first connecting part 311 is hinged to the first rotating shaft 331, the first rolling conveyor assembly 31 can move closer to or away from the second rolling assembly 32.

[0042] Furthermore, the second rolling conveyor assembly 32 includes a second connecting part 321, a second transmission wheel 322, a second roller 323, a third rotating shaft 324, a second mounting frame 325, and a first driving member 326. The second mounting frame 325 is disposed on the worktable 1. The second connecting part 321 is hinged to the first rotating shaft 331. The second transmission wheel 322 is located at the lower end of the third rotating shaft 324 and is connected to the first transmission wheel 333. The upper end of the third rotating shaft 324 passes through the second mounting frame 325 and the second connecting part 321 in sequence and is connected to the second roller 323. The output end of the first driving member 326 is connected to the third rotating shaft 324, so that the third rotating shaft 324 can drive the first transmission wheel 333 and the second roller 323 to rotate synchronously. A gap 34 is provided between the first roller 313 and the second roller 323.

[0043] Specifically, the second rolling conveying assembly 32 includes a second connecting part 321, a second transmission wheel 322, a second roller 323, a third rotating shaft 324, a second mounting bracket 325, and a first driving member 326. Driven by the first driving member 326, the third rotating shaft 324 begins to rotate, simultaneously driving the second roller 323 at its top to rotate. Since the third rotating shaft 324 is also equipped with a second transmission wheel 322, and the second transmission wheel 322 is connected to the first transmission wheel 333, the third rotating shaft 324 can also drive the second transmission wheel 322 and the first transmission wheel 333 to rotate, thereby realizing the rotation of the connecting assembly 33 and the first rolling conveying assembly 31. The first roller 313 and the second roller 323 move in the same direction. When the pipe moves to the interval 34, it is transported forward under the drive of the first roller 313 and the second roller 323. The entire device uses dual-sided power, which is more powerful, preventing the pipe from slipping during transport. The materials of the first roller 313 and the second roller 323 can be adapted to different pipe materials, such as plastic or metal.

[0044] Furthermore, multiple sets of the second rotating shaft 314, the first roller 313, the third rotating shaft 324, and the second roller 323 are provided; the outer walls of the second rotating shaft 314 and the third rotating shaft 324 are provided with third transmission wheels 316, and the multiple third transmission wheels 316 are connected by transmission belts 317, so that the movement trends of the multiple second rotating shafts 314 or the multiple third rotating shafts 324 are consistent.

[0045] Due to the considerable length of the pipes, multiple second rotating shafts 314, first rollers 313, third rotating shafts 324, and second rollers 323 are required to facilitate the transport of pipes of varying lengths. The transmission between the multiple second rotating shafts 314 and the first rollers 313, and between the multiple third rotating shafts 324 and the second rollers 323, is primarily achieved through third transmission wheels 316. Since the outer walls of both the second rotating shafts 314 and the third rotating shafts 324 are equipped with third transmission wheels 316, and with the addition of a transmission belt 317, the movement trends of the multiple second rotating shafts 314 and the multiple third rotating shafts 324 are kept consistent, resulting in synchronized rotation and further enhanced power. In actual production, the transmission belt 317 can be a transmission chain or other conveyor belt, sufficient to drive the multiple second rotating shafts 314 and the multiple third rotating shafts 324. This design includes two sets of first rollers 313 and second rotating shafts 314, and three sets of second rollers 323 and third rotating shafts 324. In other designs, these can be appropriately increased or decreased.

[0046] Furthermore, the tensioning assembly 2 includes a second driving member 21, a third gear 22, and a rack 23. The second driving member 21 is fixed to one side of the workbench 1, and its output end is connected to the first mounting bracket 315 for transmission. The third gear 22 is mounted on the workbench 1. The rack 23 includes a first rack 231 and a second rack 232. The first rack 231 is fixed to the first mounting bracket 315, and the second rack 232 is fixed to the second mounting bracket 325. The first rack 231 and the second rack 232 are located on both sides of the third gear 22, and both are meshed with the third gear 22, so that the movement directions of the first rack 231 and the second rack 232 are opposite.

[0047] It can be understood that the tensioning component 2 is used to drive the first rolling conveyor component 31 and the second rolling conveyor component 32 to move closer or further away, so as to clamp or loosen the pipe. Specifically, the second driving component 21 is fixed to the worktable 1, and its output end is connected to the first mounting bracket 315. Under the drive of the second driving component 21, the first mounting bracket 315 can move freely. The upper surface of the worktable 1 is also provided with a third gear 22. Correspondingly, it also includes a first rack 231 and a second rack 232. The first rack 231 and the first mounting bracket 315 are detachably fixed, and the second rack 232 is fixed to the second mounting bracket 325. Under the drive of the second driving component 21, the first rack 231 moves, and the third gear 22 meshing with the first rack 231 rotates, driving the second rack 232 to move. Since the movement trends of the first rack 231 and the second rack 232 are opposite, the first mounting bracket 315 and the second mounting bracket 325 are moved closer or further away. Correspondingly, the first roller 313 and the second roller 323 are moved closer or further away. Both the first drive component 326 and the second drive component 21 can be motors or cylinders, and can be adapted to different scenarios.

[0048] Furthermore, the worktable 1 is also equipped with a guide rail 11, and a slider 35 is provided below the first mounting bracket 315 and the second mounting bracket 325. The slider 35 is movably mounted on the guide rail 11. Thus, in order to facilitate the movement of the tensioning component 2, sliders 35 are also provided below the first mounting bracket 315 and the second mounting bracket 325. Correspondingly, the worktable 1 is equipped with a guide rail 11 that cooperates with the slider 35. When the tensioning component 2 moves, the slider 35 slides freely on the guide rail 11, making it more convenient and faster for the first rolling conveyor component 31 and the second rolling conveyor component 32 to move closer or further apart.

[0049] Furthermore, the first mounting frame 315 is also provided with an auxiliary conveying assembly 36, which includes an auxiliary roller 361 and a fourth rotating shaft 362. The fourth rotating shaft 362 rotatably passes through the first mounting frame 315, and its top end is connected to the auxiliary roller 361 in a driving connection. The second mounting frame 325 is also provided with an auxiliary conveying assembly 36, and the fourth rotating shaft 362 rotatably passes through the second mounting frame 325, and its top end is connected to the auxiliary roller 361 in a driving connection.

[0050] It is understandable that the auxiliary conveying component 36 is set to save power. A fourth rotating shaft 362 and an auxiliary roller 361 are also set on the first mounting frame 315 or the second mounting frame 325. The auxiliary roller 361 is not powered by the driving component, which makes it easier for the pipe to continue to move forward behind the device. The auxiliary conveying component 36 can be set on either the first mounting frame 315 or the second mounting frame 325. The number of auxiliary conveying components 36 can be freely selected, such as 1, 3, etc.

[0051] Furthermore, the workbench 1 is also equipped with supporting rollers 12 for supporting the bottom of the pipe. Thus, the supporting rollers 12 are located at the end of the pipe feeding device, which can support the bottom of the pipe during the pipe transportation process, prevent the pipe from falling, and facilitate the pipe transportation process.

[0052] Furthermore, the workbench 1 is also equipped with a sensing component 13 for sensing the passage of the pipe. The sensing component 13 is located on both sides of the pipe. By simultaneously sensing whether the pipe has passed through with two sets of sensing components 13, the detection result is more accurate. The sensing component 13 can be a sensor switch or the like.

[0053] The first rolling conveyor assembly 31 and the second rolling conveyor assembly 32 of the pipe feeding device are provided with outer covers to isolate them from the outside world, prevent the first rolling conveyor assembly 31 and the second rolling conveyor assembly 32 from being disturbed by the outside world during operation, and also play a role in dust prevention.

[0054] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A pipe feeding device, characterized in that, The utility model provides a pipe conveying device, which comprises a workbench, a tensioning assembly and a rolling conveying assembly, wherein the rolling conveying assembly is arranged on the workbench and used for conveying a pipe; The rolling conveying assembly comprises a first rolling conveying assembly, a second rolling conveying assembly and a connecting assembly, the end of the first rolling conveying assembly and the end of the second rolling conveying assembly are hingedly connected with the connecting assembly, and a space for the pipe to pass through is arranged between the first rolling conveying assembly and the second rolling conveying assembly; the connecting assembly comprises a first rotating shaft, a first gear and a first transmission wheel, the first gear and the first transmission wheel are arranged at the two ends of the first rotating shaft respectively, the first gear is arranged in meshing connection with the first rolling conveying assembly, and the first transmission wheel is in transmission connection with the second rolling conveying assembly; the second rolling conveying assembly comprises a second connecting part, a second transmission wheel, a second roller, a third rotating shaft, a second mounting rack and a first driving element, the second mounting rack is arranged on the workbench, the second connecting part is hingedly connected with the first rotating shaft, the second transmission wheel is arranged at the lower end of the third rotating shaft and is in transmission connection with the first transmission wheel, the upper end of the third rotating shaft passes through the second mounting rack and the second connecting part in sequence and is in transmission connection with the second roller, and the output end of the first driving element is in transmission connection with the third rotating shaft, so that the third rotating shaft can drive the first transmission wheel and the second roller to rotate synchronously; the first rolling conveying assembly is provided with a first mounting rack, the first mounting rack is arranged on the workbench, the tensioning assembly is provided with a second driving element, the second driving element is fixed to one side of the workbench and is in transmission connection with the first mounting rack, and the tensioning assembly is used for driving the first rolling conveying assembly and the second rolling conveying assembly to move close to or away from each other; The first rolling conveying assembly further comprises a first connecting part, a second gear, a first roller and a second rotating shaft, the first connecting part is hingedly connected with the first rotating shaft, the second gear is arranged in meshing connection with the first gear, and the second rotating shaft passes through the first mounting rack, the first connecting part and the second gear in sequence and is in transmission connection with the first roller at the top end, so that when the first gear drives the second gear to rotate, the second rotating shaft and the first roller can rotate synchronously; The tensioning assembly further comprises a third gear and a rack, the third gear is arranged on the workbench, the rack comprises a first rack and a second rack, the first rack is fixed with the first mounting rack, the second rack is fixed with the second mounting rack, the first rack and the second rack are arranged on the two sides of the third gear respectively and are arranged in meshing connection with the third gear, so that the movement directions of the first rack and the second rack are opposite.

2. A pipe feeding apparatus according to claim 1, wherein The second rotating shaft, the first roller, the third rotating shaft and the second roller are provided with multiple groups; The outer walls of the second rotating shaft and the third rotating shaft are provided with third transmission wheels, the multiple third transmission wheels are in transmission connection through a transmission belt, so that the movement trends of the multiple second rotating shafts or the multiple third rotating shafts are consistent.

3. A pipe feeding apparatus according to claim 1, wherein The workbench is further provided with a guide rail, and the first mounting frame and the second mounting frame are both provided with a sliding block movably arranged on the guide rail.

4. A pipe feeding apparatus according to claim 1, wherein The first mounting frame is further provided with an auxiliary conveying assembly, which comprises an auxiliary roller and a fourth rotating shaft rotatably penetrating through the first mounting frame and having a top end in transmission connection with the auxiliary roller. The second mounting frame is also provided with the auxiliary conveying assembly, and the fourth rotating shaft rotatably penetrates through the second mounting frame and has a top end in transmission connection with the auxiliary roller.

5. A pipe feeding apparatus according to claim 1, wherein The workbench is further provided with a supporting roller for supporting the bottom of the pipe.

6. A pipe feeding apparatus according to claim 1, wherein The workbench is further provided with a sensing assembly for sensing the passing of the pipe.

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