Pipe cutting equipment and pipe fitting produced by same

Abstract

The utility model discloses pipe cutting equipment and a pipe fitting produced by the pipe cutting equipment. The pipe cutting equipment comprises a rack; the feeding module is connected to the rack in a sliding mode in the front-back direction, and the feeding module is used for conveying pipe materials forwards; the slitting module is located in front of the feeding module, the slitting module comprises a slitting main body and a reset device, the slitting main body is slidably connected to the rack in the front-back direction, and the slitting main body comprises a clamping device used for clamping the pipe materials and a cutting device used for slitting the pipe materials; the reset device is connected with the slitting main body and has a front-to-back driving working condition and a back-to-front avoiding working condition; and the blanking module is located in front of the slitting module, the blanking module is provided with an induction device and a blanking device, the induction device is used for detecting the end position of the pipe material, and the slitting module is controlled by the induction device. According to the utility model, when the pipe is slit, the pipe is still pushed forwards, so that the waiting time of the feeding module is eliminated, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of machining, and in particular to pipe cutting equipment and the pipe fittings produced therefrom. Background Technology

[0002] Currently, stainless steel welded pipes are widely used in various industries. The forming process is roughly as follows: the coiled steel is placed on the uncoiling machine. The steel strip is first pulled and leveled by the extension module. Then, the edge rolling module gradually rolls the steel strip inward to form an open round pipe with the opening facing upward. Subsequently, the rounding module rounds the shape of the open round pipe. After rounding, the opening of the open round pipe is welded by the welding module to form a weld. Then, the outer leveling device is used to level the outer weld of the welded pipe. Finally, the pipe is cut by the pipe cutting module.

[0003] Since welded pipe equipment mainly produces standardized welded pipes, its pipe cutting interval is generally 3 meters or 6 meters. Normally, welded pipe manufacturers only need to sell standardized welded pipes to downstream enterprises, which then cut the standardized welded pipes according to their actual needs. However, some downstream enterprises have limited industrial capabilities and lack the ability to machine standardized welded pipes. Therefore, welded pipe manufacturers also need to cut some of the welded pipes before selling them to downstream enterprises.

[0004] Existing pipe cutting equipment typically uses a pusher plate to push the welded pipe. Once the pipe reaches a baffle, the pusher plate stops advancing, and the cutting device then slits the pipe to obtain fittings of the specified length. After slitting, the baffle descends, and the pusher plate continues to advance the pipe. During this process, a dropping device drops the slit fittings, and then the baffle rises again. Some pipe cutting equipment does not require a baffle to position the pipe; instead, it controls the pipe's stroke through feedback from a servo motor. After the pipe has advanced a certain distance, the pusher plate stops, and the cutting device then slits the pipe.

[0005] However, existing pipe cutting equipment has a pain point: when cutting pipes, the pusher plate needs to stop moving forward. Assuming that each pipe cutting takes 10 seconds and a standardized welded pipe needs to be cut 3 times, then the waiting time of the pusher plate in the processing of a standardized welded pipe is at least 30 seconds, which is obviously not conducive to improving the efficiency of the pipe cutting equipment. Utility Model Content

[0006] The present invention aims to provide a high-efficiency pipe cutting device.

[0007] The pipe cutting device according to a first aspect embodiment of the present invention includes:

[0008] The frame is set along its length in the front-to-back direction;

[0009] A feeding module is slidably connected to the frame in the front-to-back direction. The feeding module is used to convey the pipe material forward, so that the pipe material has a conveying path.

[0010] The slitting module is located in front of the feeding module. The slitting module includes a slitting body and a resetting device. The slitting body is slidably connected to the frame in a front-to-back direction. The slitting body includes a clamping device and a cutting device. The clamping device has a moving path for clamping the tube material, and the cutting device has a moving path for cutting the tube material. The resetting device is connected to the slitting body and has a front-to-back driving mode and a rear-to-front avoidance mode.

[0011] The material feeding module is located in front of the cutting module. The material feeding module is equipped with a sensing device and a material feeding device. The sensing device is used to detect the end position of the tube material. The cutting module is controlled by the sensing device.

[0012] The pipe cutting device according to the embodiments of this utility model has at least the following beneficial effects: During operation, the feeding module pushes the pipe material sequentially through the slitting module and the unloading module. Once the sensing device detects the end position of the pipe material, it immediately sends feedback to the controller. The controller controls the clamping device to clamp the pipe material and controls the cutting device to slit the pipe material. After the clamping device clamps the pipe material, the thrust of the feeding module is transmitted through the pipe material to the slitting body, thereby driving the slitting body to move forward synchronously. Since the reset device has a rear-to-forward avoidance condition, the reset device will not obstruct the movement of the pipe material. The cutting body moves forward to cut the pipe material while it is moving. After cutting, the clamping device releases the pipe material, thereby disconnecting the force transmission between the feeding module and the cutting body. Then, the resetting device drives the cutting body to reset backward. Throughout the process, the feeding module continues to push the pipe material forward, and the cut pipes continue to be conveyed forward under the push of the pipe material behind, until the pipes are dropped by the unloading device. Compared with the prior art, this utility model continues to push the pipe material forward while cutting it, thereby eliminating the waiting time of the feeding module and effectively improving work efficiency.

[0013] According to some embodiments of the present invention, the feeding module includes a sliding plate, a moving device, and a pushing part. The sliding plate is slidably connected to the frame in the front-back direction. The moving device drives the sliding plate to move along the length direction of the frame. The pushing part is connected to the sliding plate.

[0014] According to some embodiments of the present invention, the clamping device includes two pneumatic clamping blocks, both of which move in the left-right direction.

[0015] According to some embodiments of the present invention, the cutting device is provided with a cutting section that can be raised and lowered.

[0016] According to some embodiments of the present invention, both pneumatic clamps are provided with cutting grooves that avoid the cutting part.

[0017] According to some embodiments of the present invention, the reset device includes a cylinder or a hydraulic cylinder, and the reset device has a pressure relief station.

[0018] According to some embodiments of the present invention, the material unloading module includes a support platform and a material unloading frame. The support platform is connected to the conveying path, and the material unloading frame is located beside the support platform. The material unloading device is provided with a movable material unloading part, and the material unloading part has a moving path from the support platform to the material unloading frame.

[0019] According to some embodiments of the present invention, the sensing device includes a bracket, a rotating plate, an eccentric wheel, and a limit switch. The bracket is connected to the support platform, the rotating plate is rotatably connected to the bracket via a rotating shaft, the rotating plate is located on the conveying path, the eccentric wheel is connected to the rotating shaft, the on / off state of the limit switch is controlled by the rotation of the eccentric wheel, and the limit switch is electrically connected to the cutting module.

[0020] According to some embodiments of the present invention, the support platform is connected to a baffle in front of the sensing device, the baffle is provided with a sensor, and the sensor is electrically connected to the material feeding device.

[0021] The pipe fittings according to the second aspect of the present invention are produced using the aforementioned pipe cutting equipment.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the pipe cutting device provided in this embodiment of the utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the slitting module provided in this embodiment of the utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the blanking module provided in this embodiment of the utility model;

[0027] Figure 4 yes Figure 3 The diagram shows the three-dimensional structure of the material feeding module during material feeding.

[0028] Figure 5 This is a schematic diagram of the structure of the sensing device provided in this embodiment after it has been activated.

[0029] In the attached diagram: 100-frame, 200-feeding module, 300-slitting module, 400-unloading module, 500-tube material, 210-slide plate, 220-feeding motor, 230-push section, 110-long slide rail, 120-long rack, 231-clamp, 301-slitting body, 340-reset device, 341-telescopic rod, 310-base plate, 320-clamping device, 330-cutting device, 321-pneumatic clamping block, 331-lifting mechanism, 332-cutting mechanism, 333-cutting section, 322-groove, 410-support platform, 420-unloading rack, 430-unloading device, 440-sensing device, 431-moving plate, 441-support, 442-rotating plate, 443-eccentric wheel, 444-limit switch, 445-rotating shaft, 450-baffle. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] like Figure 1 As shown, the pipe cutting device according to a first aspect embodiment of the present invention includes a frame 100, a feeding module 200, a slitting module 300, and a dropping module 400. The length of the frame 100 is set along the front-to-back direction, and the width of the frame 100 is set along the left-to-right direction. The feeding module 200 and the slitting module 300 are both connected to the frame 100. The feeding module 200 is used to convey the pipe material 500 forward, so that the pipe material 500 has a conveying path; the slitting module 300 is used to cut the pipe material 500 to obtain a pipe fitting of a specified length; the dropping module 400 is used to drop the pipe fitting to avoid the pipe fitting blocking the conveying path. Since the feeding module 200, the slitting module 300, and the dropping module 400 have a clear sequential processing order, the feeding module 200, the slitting module 300, and the dropping module 400 are arranged sequentially along the conveying path.

[0035] The feeding module 200 includes a slide plate 210, a feeding motor 220, and a pushing part 230. The bottom surface of the slide plate 210 has two rows of sliders. Correspondingly, the frame 100 has two long slide rails 110 along the front-back direction. The slide plate 210 and the frame 100 are slidably connected via the sliders and the long slide rails 110. The frame 100 has a long rack 120 along the front-back direction. The feeding motor 220 is fixedly connected to the slide plate 210. The motor shaft of the feeding motor 220 passes downward through the slide plate 210 and is rigidly connected to a gear (not shown in the attached diagram). The gear meshes with the long rack 120. At this time, the gear, the long rack 120, and the feeding motor 220 together constitute a moving device. When the feeding motor 220 starts, the slide plate 210 can slide along the front-back direction with the cooperation of the gear and the long rack 120.

[0036] It is understood that this utility model does not limit the specific structure of the moving device, and it can also be a high-precision traveling device such as a lead screw and nut device, and is not limited to the above embodiments.

[0037] On the other side, the pusher 230 is connected to the slide plate 210. The pusher 230 includes at least two structures. One is a push plate, which pushes the tube 500 forward under the drive of the feeding motor 220. The other is a chuck 231, which clamps the tube 500 and drives it forward through the cooperation of a cylinder and a gripper. Since the chuck 231 can not only push the tube 500, but also limit the position of the tube 500 and prevent the tube 500 from shifting its position during forward movement, in this embodiment, the pusher 230 is preferably selected as the chuck 231.

[0038] like Figure 2As shown, the slitting module 300 includes a slitting body 301 and a reset device 340. The bottom surface of the slitting body 301 has two rows of sliding blocks. Correspondingly, the frame 100 has two sliding rails along the front-to-back direction. The slitting body 301 and the frame 100 are slidably connected via the sliding blocks and sliding rails. The reset device 340 is located in front of the slitting body 301. The reset device 340 can be a power device with a pressure relief position, such as a cylinder or hydraulic cylinder. The reset device 340 has a telescopic rod 341, which is fixedly connected to the bottom surface of the slitting body 301. The reset device 340 has a front-to-back driving mode and a rear-to-front avoidance mode. When the reset device 340 switches to the pressurization position, the flowing medium enters the cylinder in one direction and pushes the telescopic rod 341 to extend the length of the telescopic rod 341, so that the cutting body 301 can move from front to back. When the reset device 340 switches to the depressurization position, the flowing medium of the telescopic rod 341 can flow out of the cylinder without resistance, so that the telescopic rod 341 can be passively retracted after being subjected to a force from back to front, until the telescopic rod 341 retracts to its shortest length.

[0039] On the other side, the slitting body 301 includes a substrate 310, a clamping device 320, and a cutting device 330. The substrate 310 is connected to a sliding block and a telescopic rod 341. Both the clamping device 320 and the cutting device 330 are connected to the substrate 310. The clamping device 320 includes two pneumatic clamping blocks 321, both of which move in the left-right direction. Driven by a cylinder, the two pneumatic clamping blocks 321 move closer to or further away from each other. When the two pneumatic clamping blocks 321 move closer, the clamping space they form becomes smaller, thereby clamping the tube 500 passing through the clamping space. When the two pneumatic clamping blocks 321 move further away from each other, the clamping space they form becomes larger, thereby releasing the tube 500 passing through the clamping space. The cutting device 330 includes a lifting mechanism 331 and a cutting mechanism 332. The lifting mechanism 331 is connected to the base plate 310 and can be selected as a lead screw and nut mechanism, a gear and rack mechanism, or a cylinder. It is equipped with a lifting block that can be raised and lowered. The lifting block is connected to the cutting mechanism 332, which is equipped with a cutting part 333 driven by a motor. The cutting part 333 has a rotation axis arranged in the front-back direction and rotates at high speed under the drive of the motor.

[0040] Furthermore, both pneumatic clamping blocks 321 are provided with cutting grooves 322 that avoid the cutting part 333, so that the two pneumatic clamping blocks 321 can clamp on both sides of the cut when the cutting part 333 cuts the pipe material 500, so as to prevent the position of the cut from shifting due to vibration during the cutting process.

[0041] like Figure 3 and Figure 4As shown, the unloading module 400 includes a support platform 410 and an unloading rack 420. The support platform 410 is connected to the conveying path of the pipe 500, and the unloading rack 420 is connected to the side of the support platform 410. An unloading device 430 and a sensing device 440 are connected to the support platform 410. The unloading device 430 has a movable unloading section with a moving path from the support platform 410 to the unloading rack 420. The pipe 500 moves to the support platform 410 under the push of the feeding module 200, and is supported by the support platform 410. To better position and support the pipe 500, the support platform 410 can be a V-shaped groove. Correspondingly, the unloading device 430 can be a cylinder-driven moving plate 431, which is flush with the side of the V-shaped groove away from the unloading rack 420. When it is necessary to unload the pipe fitting, the cylinder drives the moving plate 431 to extend towards the unloading rack 420, thereby pushing the pipe fitting located in the V-groove out of the support platform 410 and falling onto the unloading rack 420.

[0042] On the other side, the sensing device 440 includes a bracket 441, a rotating plate 442, an eccentric wheel 443, and a limit switch 444. The bracket 441 is connected to the support platform 410, and the rotating plate 442 is rotatably connected to the bracket 441 via a rotating shaft 445. The rotating shaft 445 has an axial direction arranged in a left-right direction, and the rotating plate 442 is located on the conveying path of the pipe 500. Figure 5 As shown, the eccentric wheel 443 is fixedly connected to the rotating shaft 445, and the on / off state of the limit switch 444 is controlled by the rotation of the eccentric wheel 443. When the rotating plate 442 remains vertically downward, the rotation center of the eccentric wheel 443 is closest to the limit switch 444, and the limit switch 444 is inactive at this time. Once the pipe material 500 pushes open the rotating plate 442 under the push of the feeding module 200, and the rotating plate 442 rotates to avoid it, the eccentric wheel 443 rotates with the rotation of the rotating plate 442. When the eccentric wheel 443 rotates, it will press down on the limit switch 444, and the limit switch 444 is activated at this time.

[0043] It is understood that this utility model does not limit the specific structure of the sensing device 440. It can also be a proximity switch, photoelectric switch, etc. As long as the sensing device 440 can detect the end position of the tube 500 and feed the detection signal back to the controller, regardless of the structure of the sensing device 440, it is within the protection scope of this utility model.

[0044] like Figure 1As shown, during operation, the feeding module 200 pushes the pipe material 500 sequentially through the slitting module 300 and the unloading module 400. When the limit switch 444 is activated, it sends a signal to the controller. The controller then controls the clamping device 320 to clamp the pipe material 500, controls the cutting device 330 to slit the pipe material 500, and controls the reset device 340 to switch to the pressure relief position. After the clamping device 320 clamps the pipe material 500, the thrust of the feeding module 200 is transmitted through the pipe material 500 to the slitting body 301, thereby driving the slitting body 301 to move forward synchronously, thus achieving simultaneous cutting of the pipe material 500 as it moves. After the cutting is completed, the clamping device 320 releases the pipe material 500, thereby disconnecting the force transmission between the feeding module 200 and the cutting body 301. Then, the reset device 340 drives the cutting body 301 to reset. Throughout the process, the feeding module 200 continuously pushes the pipe material 500 forward. The cut pipes continue to be conveyed forward under the push of the pipe material 500 until they reach their destination, where the unloading device 430 unloads them. Once the pipes on the support platform 410 have fallen onto the unloading rack 420, the force exerted by the pipes on the rotating plate 442 disappears, and the rotating plate 442 immediately returns to a vertical position under gravity, ready for the next rotation. Compared with the prior art, this invention continues to push the pipe material 500 forward during the cutting process, eliminating the waiting time of the feeding module 200 and effectively improving work efficiency.

[0045] It should be noted that the length of each pipe fitting is determined by the distance between the origin of the cutting section 333 and the rotating plate 442. If the length of each pipe fitting needs to be adjusted, either the position of the sensing device 440 on the support platform 410 needs to be adjusted, or the origin of the cutting section 333 needs to be adjusted. Since the origin of the cutting section 333 can be determined by the extension length of the reset device 340, it is preferable to adjust the length of each pipe fitting by adjusting the origin of the cutting section 333.

[0046] like Figure 3 As shown, in some embodiments of this utility model, a baffle 450 is connected to the support platform 410 in front of the sensing device 440. The baffle 450 is equipped with a sensor (not shown in the figure), which can be a proximity switch. The sensor is electrically connected to the unloading device 430. When the pipe is conveyed to abut against the baffle 450, the sensor detects the pipe and immediately feeds back the detection signal to the controller. The controller then controls the unloading device 430 to perform the unloading action.

[0047] Furthermore, to improve the stability of the pipe fitting during unloading, at least two unloading devices 430 are provided, with all unloading devices 430 spaced apart in the front-to-back direction. Upon receiving a control signal from the controller, all unloading devices 430 synchronously execute the unloading action to smoothly push the pipe fitting beyond the support platform 410.

[0048] The pipe fitting according to the second aspect embodiment of the present invention is manufactured using the pipe cutting equipment according to the first aspect embodiment of the present invention. Since the pipe fitting adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. Pipe cutting equipment, characterized in that, include: A frame (100) is provided with its length along the front-to-back direction; A feeding module (200) is slidably connected to the frame (100) in the front-back direction. The feeding module (200) is used to convey the tube (500) forward, so that the tube (500) has a conveying path. A slitting module (300) is located in front of the feeding module (200). The slitting module (300) includes a slitting body (301) and a reset device (340). The slitting body (301) is slidably connected to the frame (100) in the front-back direction. The slitting body (301) includes a clamping device (320) and a cutting device (330). The clamping device (320) has a moving path for clamping the tube material (500), and the cutting device (330) has a moving path for slitting the tube material (500). The reset device (340) is connected to the slitting body (301) and has a front-to-back driving mode and a rear-to-front avoidance mode. A material feeding module (400) is located in front of the cutting module (300). The material feeding module (400) is equipped with a sensing device (440) and a material feeding device (430). The sensing device (440) is used to detect the end position of the tube (500). The cutting module (300) is controlled by the sensing device (440).

2. The pipe cutting device according to claim 1, characterized in that: The feeding module (200) includes a slide plate (210), a moving device, and a pushing part (230). The slide plate (210) is slidably connected to the frame (100) in the front-back direction. The moving device drives the slide plate (210) to move along the length direction of the frame (100). The pushing part (230) is connected to the slide plate (210).

3. The pipe cutting device according to claim 1, characterized in that: The clamping device (320) includes two pneumatic clamps (321), both of which move in the left-right direction.

4. The pipe cutting device according to claim 3, characterized in that: The cutting device (330) is equipped with a cutting section (333) that can be raised and lowered.

5. The pipe cutting device according to claim 4, characterized in that: Both pneumatic clamps (321) are provided with grooves (322) that avoid the cutting part (333).

6. The pipe cutting device according to claim 1, characterized in that: The reset device (340) includes a cylinder or a hydraulic cylinder, and the reset device (340) has a pressure relief station.

7. The pipe cutting device according to claim 1, characterized in that: The material unloading module (400) includes a support platform (410) and a material unloading rack (420). The support platform (410) is connected to the conveying path, and the material unloading rack (420) is located beside the support platform (410). The material unloading device (430) is provided with a movable material unloading part, which has a moving path from the support platform (410) to the material unloading rack (420).

8. The pipe cutting device according to claim 7, characterized in that: The sensing device (440) includes a bracket (441), a rotating plate (442), an eccentric wheel (443), and a limit switch (444). The bracket (441) is connected to the support platform (410). The rotating plate (442) is rotatably connected to the bracket (441) via a rotating shaft (445). The rotating plate (442) is located on the conveying path. The eccentric wheel (443) is connected to the rotating shaft (445). The on / off state of the limit switch (444) is controlled by the rotation of the eccentric wheel (443). The limit switch (444) is electrically connected to the cutting module (300).

9. The pipe cutting device according to claim 8, characterized in that: The support platform (410) is connected to a baffle (450) in front of the sensing device (440). The baffle (450) is equipped with a sensor, which is electrically connected to the material feeding device (430).

10. A pipe fitting, characterized in that, The pipe fittings are manufactured using the pipe cutting equipment as described in any one of claims 1 to 9.

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