Device for cutting off burrs in welded pipe
By designing a burr-cutting device for welded pipes, and using a mechanized process to cut off internal burrs, the problems of low efficiency, high risk, and high cost in existing technologies have been solved, and safe and continuous welded pipe production has been achieved.
Patent Information
- Application Number
- CN202423092675.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-16
AI Technical Summary
In the existing technology, the method of cutting internal burrs (internal ribs) in the welded pipe production process has problems of low efficiency, high risk and high cost, especially the low efficiency of manual processing and the easy damage of saw blades.
Design a burr cutting device for welded pipes, including a control system, an upper shear blade, a lower shear blade, a driven wheel, a synchronous belt, a driving wheel, a geared motor, a bearing housing, a transmission shaft, and a frame. The device cuts internal burrs through a mechanized process, and achieves rapid cutting of internal burrs by utilizing the cooperation of the upper and lower shear blades.
It achieves unmanned operation, reduces labor and saw blade damage costs, ensures the continuity and safety of welded pipe production, and improves production efficiency and equipment lifespan.
Smart Images
Figure CN223572113U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of straight seam welded pipe automation production, and particularly relates to a welded pipe inner burr cutting device. BACKGROUND
[0002] With the improvement of industrial level, the requirement of improving work efficiency and reducing cost is also improved in various trades, and for some high-quality requirement, high-value seamless products, such as petroleum, natural gas, chemical industry, coal water slurry and other high-precision, high-strength structure cylinder welded pipe, inner burr needs to be removed.
[0003] In the process of being extruded and welded, when metal crystallizes to form a weld, part of the metal is extruded out of the weld and adheres to the inner wall of the welded pipe, which is the inner burr of the welded pipe.
[0004] The inner burr is in the form of a continuous strip after being scraped by the inner burr removing device and is left inside the welded pipe, which is commonly known as inner rib.
[0005] In the online production process, after the welded pipe is cut by a flying saw, the inner rib of the welded pipe is exposed between the front and rear welded pipes, and some inner ribs may also be wound on the unloading roller, which brings great harm to the personal safety of the production and operating personnel.
[0006] The current traditional industry handles the cutting of the inner burr (inner rib) in the following ways: manually cutting the inner burr or cutting the inner rib by increasing the cutting amount when cutting the steel pipe with the flying saw; the former has low processing efficiency and certain danger; and the latter is prone to tooth breakage of the saw blade and damage to the saw blade due to the impact when cutting the inner rib, which is much harder than the base material, thereby increasing the production cost.
[0007] In summary, there is an urgent need for a device for cutting the inner burr (inner rib) generated in the production process of straight seam welded pipes. SUMMARY
[0008] In view of the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a welded pipe inner burr cutting device.
[0009] The utility model adopts the technical scheme for solving the technical problems:
[0010] The welding pipe inner burr cutting device comprises a control system, an upper shear blade, a lower shear blade, a driven wheel, a synchronous belt, a driving wheel, a speed reducer motor, a bearing seat, a transmission shaft and a rack; the control system is electrically connected with the speed reducer motor, the speed reducer motor is directly connected with the driving wheel, the driving wheel is connected with the driven wheel through the synchronous belt; the bearing seat is fixedly arranged on the rack, the transmission shaft is arranged between the bearing seats, one end of the transmission shaft is connected with the driven wheel; the upper shear blade is connected with the transmission shaft, the rotating direction of the upper shear blade is perpendicular to the advancing direction of the welding pipe, and the lower shear blade is fixedly arranged on the rack and matched with the upper shear blade to cut off the inner burr of the welding pipe.
[0011] Further, the inner burr cutting device is used to cut off the inner burr exposed between the front and rear welding pipes after the welding pipe is cut off by the flying saw.
[0012] Further, the inner burr cutting device is installed between the welding pipe flying saw and the unloading roller.
[0013] Further, the inlet guide roller is arranged on the rack in the advancing direction of the welding pipe.
[0014] Further, the outlet speed measuring roller is arranged on the rack in the advancing direction of the welding pipe and is electrically connected with the control system.
[0015] Further, the adjusting bolt is arranged on one side of the lower shear blade, the gap between the lower shear blade and the upper shear blade is changed by adjusting the tightness of the adjusting bolt.
[0016] Further, the lower shear blade is arranged in a direction perpendicular to the advancing direction of the welding pipe.
[0017] Further, the speed reducer motor and the driving wheel are arranged below the side surface of the rack.
[0018] Further, the synchronous belt can also be in the form of a chain.
[0019] Further, the upper shear blade seat is arranged on the transmission shaft, and the upper shear blade is arranged on the upper shear blade seat.
[0020] The advantages of the welding pipe inner burr cutting device are as follows:
[0021] (1) The welding pipe inner burr cutting device is used to cut off the inner burr (inner rib), completely avoiding personnel operation, zero personnel and full mechanical process, avoiding the danger existing in manual operation and reducing labor cost;
[0022] (2) The welding pipe inner burr cutting device is used to cut off the inner burr (inner rib) exposed between the front and rear welding pipes after the welding pipe is cut off by the flying saw, without the need of the flying saw blade to cut off the inner rib, without damage to the saw blade, reducing production cost and reducing production downtime when the saw blade is damaged;
[0023] Moreover, the welding pipe inner burr cutting device cuts the inner rib, the shearing time is short, and the operation is convenient and fast.
[0024] (3) The welding pipe inner burr cutting device is installed between the welding pipe flying saw and the unloading roller table, the welding pipe containing the inner rib enters from the inlet guide roller, the inner rib is cut off vertically through the shearing blade position, the welding pipe production process is not affected, and the continuous production of the welding pipe production is ensured.
[0025] Moreover, the welding pipe inner burr cutting device is provided with an outlet speed measuring roller, the speed and position of the welding pipe are determined, only the inner rib is cut off without cutting the welding pipe, actual production requirements are met, and flexible production is facilitated.
[0026] (4) The welding pipe inner burr cutting device is reasonable in design and simple in structure. DRAWINGS
[0027] Figure 1 It is a front view of the utility model.
[0028] Figure 2 It is a top view of the utility model.
[0029] Figure 3 It is a side view of the utility model.
[0030] Among them, 1. upper shear blade seat, 2. lower shear blade, 3. upper shear blade, 4. driven wheel, 5. synchronous belt, 6. driving wheel, 7. speed reducer motor, 8. bearing seat, 9. transmission shaft, 10. rack, 11. adjusting bolt, 12. outlet speed measuring roller, 13. inlet guide roller. DETAILED DESCRIPTION
[0031] The utility model will be further described below in combination with the drawings and examples.
[0032] The welding pipe inner burr cutting device of the embodiment comprises a control system, an upper shear blade seat 1, a lower shear blade 2, a driven wheel 4, a synchronous belt 5, a driving wheel 6, a speed reducer motor 7, a bearing seat 8, a transmission shaft 9 and a rack 10, and the control system is electrically connected with the speed reducer motor 7.
[0033] Among them, the speed reducer motor 7 is directly connected with the driving wheel 6, the driving wheel 6 is connected to the driven wheel 4 through the synchronous belt 5, the driven wheel 4 is fixed on the rack 10, and the driven wheel 4 is connected with the transmission shaft 9.
[0034] The speed reducer motor 7 of the embodiment adopts a general-purpose alternating current asynchronous motor.
[0035] In the embodiment, the speed reducer motor 7 and the driving wheel 6 are located below the side surface of the rack 10. Of course, the speed reducer motor 7 and the driving wheel 6 can also be arranged on the rack 10 and located on the same horizontal line with the driven wheel 4.
[0036] In addition, the synchronous belt 5 can also adopt a chain transmission mode.
[0037] The bearing seats 8 are fixedly arranged on the rack 10, and the transmission shaft 9 is arranged between the bearing seats 8. The arrangement direction of the transmission shaft 9 is parallel to the advancing direction of the welded pipe (the arrangement direction of the transmission shaft 9 is the longitudinal direction as shown in the figure). Figure 2 The one end of the transmission shaft 9 is connected to the driven wheel 4.
[0038] The upper shear blade seat 1 is fixedly arranged on the transmission shaft 9. Specifically, the bottom of the upper shear blade seat 1 is sleeved on the shaft of the transmission shaft 9. The transmission shaft 9 drives the rotation of the upper shear blade seat 1. The direction of the rotation is perpendicular to the advancing direction of the welded pipe (the direction of the rotation is the transverse direction as shown in the figure). Figure 2 The transmission shaft 9 drives the rotation of the upper shear blade seat 1.
[0039] That is, the power is transmitted from the speed reducer 7 to the transmission shaft 9 through the synchronous belt 5. The transmission shaft 9 drives the rotation of the upper shear blade seat 1.
[0040] The upper shear blade 3 is arranged on the upper shear blade seat 1. The upper shear blade 3 can be removed from the upper shear blade seat 1 and replaced.
[0041] The lower shear blade 2 is fixedly arranged on the rack 10. The arrangement direction of the lower shear blade 2 is perpendicular to the advancing direction of the welded pipe (the arrangement direction is the transverse direction as shown in the figure). The lower shear blade 2 cooperates with the upper shear blade 3 on the upper shear blade seat 1. With the rotation of the upper shear blade 3, the lower shear blade 2 and the upper shear blade 3 quickly cut the inner burr (inner rib) passing in the longitudinal direction. Figure 2 With the shearing movement, the lower shear blade 2 and the upper shear blade 3 will be worn and the gap will be enlarged. The gap can be adjusted by adjusting the adjusting bolt 11.
[0042] Preferably, the adjusting bolt 11 is arranged on one side of the lower shear blade 2. By adjusting the tightness of the adjusting bolt 11, the position (such as the height) of the upper shear blade 3 is changed, so as to adjust the gap between the lower shear blade 2 and the upper shear blade 3.
[0043] Preferably, as shown in the figure, the entry guide roller 13 is arranged on the rack 10 in the advancing direction of the welded pipe. The entry guide roller 13 is used to guide the welded pipe to prevent the welded pipe from being bent and damaged.
[0044] Figure 3 The cutting device of the embodiment is installed between the welded pipe flying saw and the unloading roller. The welded pipe containing the inner rib enters the entry guide roller 13 and passes through the shear blade position vertically. The lower shear blade 2 and the upper shear blade 3 cooperate to quickly cut the inner burr (inner rib) passing in the longitudinal direction.
[0045] The cutting device of the embodiment is installed between the welded pipe flying saw and the unloading roller. The welded pipe containing the inner rib enters the entry guide roller 13 and passes through the shear blade position vertically. The lower shear blade 2 and the upper shear blade 3 cooperate to quickly cut the inner burr (inner rib) passing in the longitudinal direction.
[0046] Preferably, the outlet speed roller 12 is arranged on the frame 10 in the advancing direction of the welded pipe and is electrically connected to the control system. The control system obtains the position of the exposed inner bead between the welded pipes according to the position and speed of the welded pipe measured by the outlet speed roller 12, controls the upper shear blade 3 to rotate one round quickly, so that only the inner bead is cut off without cutting the welded pipe.
[0047] The outlet speed roller 12 is arranged opposite to the inlet guide roller 13.
[0048] The working principle of the welded pipe inner burr cutting device of the embodiment is as follows:
[0049] The welded pipe inner burr cutting device of the embodiment is installed between the welded pipe flying saw and the unloading roller. When the inner burr (inner bead) exposed between the front and rear welded pipes passes after the welded pipe is cut off by the flying saw, the deceleration motor 7 transmits power to the transmission shaft 9 through the synchronous belt 5, the transmission shaft 9 rotates to drive the upper shear blade seat 1 to rotate, and the lower shear blade 2 cooperates with the upper shear blade seat 1 to cut off the longitudinally passing inner burr (inner bead) quickly with the rotation of the upper shear blade 3.
[0050] When the shear blade is worn or damaged, the corresponding pressing plate can be removed for replacement.
[0051] The above only describes the preferred example embodiments of the present application and does not constitute a limitation on the protection scope of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A weld pipe inner burr cutting device characterized by, The inner burr cutting device comprises a control system, an upper shear blade, a lower shear blade, a driven wheel, a synchronous belt, a driving wheel, a speed reducer motor, a bearing seat, a transmission shaft and a rack; the control system is electrically connected with the speed reducer motor, the speed reducer motor is directly connected with the driving wheel, the driving wheel is connected with the driven wheel through the synchronous belt; the bearing seat is fixedly arranged on the rack, the transmission shaft is arranged between the bearing seats, one end of the transmission shaft is connected with the driven wheel; the upper shear blade is connected on the transmission shaft, the rotation direction of the upper shear blade is perpendicular to the advancing direction of the welded pipe, the lower shear blade is fixedly arranged on the rack and cooperates with the upper shear blade to cut off the inner burr of the welded pipe.
2. A burr cutting device for inside weld seams of pipe as defined in claim 1 wherein, The inner burr cutting device is used for cutting off the inner burr exposed between two welded pipes before and after the welded pipe is cut off by a flying saw.
3. A burr cutting device for inside weld seams of pipe as defined in claim 2 wherein, The inner burr cutting device is installed between the flying saw of the welded pipe and the unloading roller.
4. A burr cutting device for the inside of a welded pipe according to any one of claims 1 to 3, characterized in that, An inlet guide roller is arranged on the rack in the advancing direction of the welded pipe.
5. A device for cutting off the internal burr of welded pipe according to any one of claims 1 to 3, characterized in that, An outlet speed measuring roller is arranged on the rack in the advancing direction of the welded pipe and is electrically connected with the control system.
6. A burr cutting device for the inside of a welded pipe according to any one of claims 1 to 3, wherein An adjusting bolt is arranged on one side of the lower shear blade, the gap between the lower shear blade and the upper shear blade is changed by adjusting the tightness of the adjusting bolt.
7. A burr cutting device for the inside of a welded pipe according to any one of claims 1 to 3, wherein The lower shear blade is arranged in a direction perpendicular to the advancing direction of the welded pipe.
8. A burr cutting apparatus for welded pipe as claimed in any one of claims 1 to 3, wherein, The speed reducer motor and the driving wheel are located below the side surface of the rack.
9. A burr cutting apparatus for welded pipe as claimed in any one of claims 1 to 3 wherein, The synchronous belt can also be in the form of a chain.
10. A burr cutting device for the inside of a welded pipe according to any one of claims 1 to 3, characterized in that, An upper shear blade seat is sleeved on the transmission shaft, and the upper shear blade is arranged on the upper shear blade seat.