In-pipe cutting slag preventing device of circular pipe intersecting line cutting machine

Abstract

The utility model belongs to the technical field of intersecting line cutting machines, and discloses a round pipe intersecting line cutting machine in-pipe slag cutting prevention device which comprises a slag prevention cylinder, the right side of the slag prevention cylinder is connected with a sealing plate through welding, a handle is fixedly installed in the middle of the right side of the sealing plate, and air bags are fixedly installed on the two sides of the outer wall of the slag prevention cylinder. Due to the fact that the anti-slag barrel does not make contact with the inner wall of the steel pipe workpiece, the risk that carburization occurs to the anti-slag barrel and the steel pipe workpiece made of stainless steel materials during cutting is effectively avoided, after cutting is finished, the pull rod is pulled upwards to drive the lock pin to be pulled out of the lock groove, and the anti-slag barrel is prevented from being damaged. And then the anti-slag barrel is taken out, and finally, the cutting position is simply cleaned, so that compared with a traditional non-protection cutting mode, the workload of polishing and cleaning cut disintegrating slag is greatly reduced, and the obvious effects on material preparation efficiency, product quality, energy conservation and environmental protection are achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of intersecting line cutting machines, in particular to a pipe-in slag-preventing device for a circular pipe intersecting line cutting machine. BACKGROUND

[0002] The pipe-in slag-preventing device for an intersecting line cutting machine is a device capable of automatically preventing slag from adhering to the pipe wall during cutting processing of the intersecting line end, intersecting line hole, and pipe elbow (shrimp joint) of a metal circular pipe. The device can be widely used in cutting processing of pipe joints in the shipbuilding, construction, petrochemical, machinery, and metallurgy industries.

[0003] In the prior art, when the intersecting line cutting machine automatically completes cutting processing of the intersecting line end, intersecting line hole, and pipe elbow (shrimp joint) of a metal circular pipe, the cutting slag will splash and adhere to the inner wall of the pipe during cutting. The slag can be removed only by a large amount of polishing in the later stage, which has a great adverse effect on material preparation efficiency, product quality, energy saving, and environmental protection. Therefore, in order to solve this problem, it is necessary to propose a pipe-in slag-preventing device for a circular pipe intersecting line cutting machine. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to solve the above-mentioned problems and provide a pipe-in slag-preventing device for a circular pipe intersecting line cutting machine.

[0005] The technical solution adopted by the present application is as follows: a pipe-in slag-preventing device for a circular pipe intersecting line cutting machine, comprising a slag-preventing cylinder, a sealing plate connected to the right side of the slag-preventing cylinder through welding, a handle fixedly installed at the right middle part of the sealing plate, air bags fixedly installed on both sides of the outer wall of the slag-preventing cylinder, a fire-resistant and high-temperature-resistant coating brushed on the outer wall of the air bags, and a protective strip arranged around the outer periphery of the air bags.

[0006] A gas cylinder penetrating into the slag-preventing cylinder is fixedly installed on the right side of the sealing plate, a piston is slidably installed in the gas cylinder, a push-pull rod is plug-in installed on the right side of the gas cylinder, a first air pipe and a second air pipe connected to the two air bags are fixedly connected to the left end of the gas cylinder, a lock sleeve is fixedly installed on the right end of the gas cylinder, a lock pin is slidably installed at the bottom of the lock sleeve, a lock groove matched with the lock pin is formed on the top right side of the push-pull rod, and a pull rod plug-in installed on the top of the lock pin is fixedly connected to the top of the lock pin.

[0007] In a preferred embodiment, a steel pipe workpiece is sleeved around the outer periphery of the slag-preventing cylinder, a pipe wheel is rollingly attached to the bottom of the steel pipe workpiece, and a support track is fixedly connected to the bottom of the pipe wheel.

[0008] In a preferred embodiment, the left side of the support rail is provided with a transverse line cutting machine, the right side of the transverse line cutting machine is fixedly installed with a chuck clamped on the left end of the steel pipe workpiece, and the upper side of the steel pipe workpiece is provided with a cutting head.

[0009] In a preferred embodiment, the outer wall of the push-pull rod is provided with a limiting strip on both sides, and the right end of the air cylinder is provided with a limiting slot matched with the push-pull rod and the limiting strip.

[0010] In a preferred embodiment, the bottom of the lock sleeve is provided with a sliding groove matched with the lock pin, and the top of the lock pin is fixedly connected with the sliding groove through a return spring.

[0011] In summary, due to the adoption of the above technical scheme, the application has the following advantages:

[0012] In the application, when the cutting head is needed to cut the steel pipe workpiece, the steel pipe workpiece is first placed on the pipe wheel, then the chuck is started to clamp and fix the left end of the steel pipe workpiece, after fixing, the worker holds the handle to insert the slag prevention cylinder into the cutting position from the right end of the steel pipe workpiece, after the slag prevention cylinder is installed in the steel pipe workpiece at the cutting position, the push-pull rod is manually pushed inward, the piston in the air cylinder is driven to move, the air in the chamber on the left side of the piston in the air cylinder is discharged into the air bag through the first air pipe and the second air pipe, the air bag is inflated, and the protective strip is firmly attached to the inner wall of the steel pipe workpiece, when the push-pull rod is pressed to the maximum limit, the lock pin will meet the lock slot, and will be clamped into the lock slot under the rebound of the return spring, to fix the push-pull rod, so as to maintain the inflation state of the air bag, then the cutting head is started to cut the steel pipe workpiece, due to the resistance and protection of the slag prevention cylinder to the inner wall of the steel pipe workpiece, most of the welding slag generated by the cutting head will be effectively blocked outside, thereby avoiding the high-temperature welding slag from falling into the inner wall of the steel pipe workpiece, at the same time, the air bag protruding from the outer wall of the slag prevention cylinder will be abutted on the inner wall of the steel pipe workpiece by the protective strip around the air bag, so that there is a certain non-contact gap between the slag prevention cylinder body and the inner wall of the steel pipe workpiece, thereby effectively preventing the slag prevention cylinder from contacting and rubbing the inner wall of the steel pipe workpiece during use, and effectively preventing the risk of carburizing the slag prevention cylinder and the stainless steel steel pipe workpiece during cutting, after cutting, the lock pin is pulled out of the lock slot by pulling the pull rod upward, then the push-pull rod is pulled to the right to return to the original position, the air bag is contracted, the slag prevention cylinder is taken out through the handle, and the cutting position is finally cleaned, thereby greatly reducing the work load of polishing and cleaning the cutting slag compared with the traditional unprotected cutting method, and obviously improving the material preparation efficiency, product quality and energy saving and environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The schematic diagram of the structure installed in the steel pipe workpiece of the present application;

[0014] Figure 2 The schematic diagram of the structure of the present application;

[0015] Figure 3 The schematic diagram of the structure inside the right end of the air cylinder in the present application.

[0016] Marked in the figure: 1-penetration line cutting machine, 2-supporting rail, 3-pipe wheel, 4-steel pipe workpiece, 5-chuck, 6-cutting head, 7-anti-slag cylinder, 8-sealing plate, 9-handle, 10-air bag, 11-protection strip, 12-air cylinder, 13-piston, 14-pull rod, 15-limiting strip, 16-first air pipe, 17-second air pipe, 18-lock sleeve, 19-lock pin, 20-lock groove, 21-pull rod. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the present application.

[0018] Reference Figure 1 , 2 A pipe penetration line cutting machine pipe anti-slag device, comprising an anti-slag cylinder 7, the outer periphery of the anti-slag cylinder 7 is sleeved with a steel pipe workpiece 4, the bottom of the steel pipe workpiece 4 is rollingly attached with a pipe wheel 3, the bottom of the pipe wheel 3 is fixedly connected with a supporting rail 2, the left side of the supporting rail 2 is provided with a penetration line cutting machine 1, the right side of the penetration line cutting machine 1 is fixedly installed with a chuck 5 clamped on the left end of the steel pipe workpiece 4, the upper side of the steel pipe workpiece 4 is provided with a cutting head 6, the right side of the anti-slag cylinder 7 is connected with a sealing plate 8 through welding, the right side of the sealing plate 8 is fixedly installed with a handle 9 in the middle, the outer wall of the anti-slag cylinder 7 is fixedly installed with an air bag 10 on both sides, the outer wall of the air bag 10 is coated with a fireproof and high-temperature resistant coating, and a circle of protection strips 11 is arranged on the outer periphery of the air bag 10.

[0019] By the above design, when the cutting head 6 is needed to cut the steel pipe workpiece 4, first, the steel pipe workpiece 4 is placed on the pipe wheel 3, then the chuck 5 is started to clamp and fix the left end of the steel pipe workpiece 4, after fixing, the operator holds the handle 9 to insert the slag prevention cylinder body 7 into the right end of the steel pipe workpiece 4, at this time, the air bags 10 protruding on the outer wall of the slag prevention cylinder body 7 will abut on the inner wall of the steel pipe workpiece 4 by the protective strips 11 on the outer periphery, so that there is a certain non-contact gap between the body of the slag prevention cylinder body 7 and the inner wall of the steel pipe workpiece 4, thereby effectively preventing the slag prevention cylinder body 7 from contacting and rubbing to damage the inner wall of the steel pipe workpiece 4 during use, and at the same time, since the slag prevention cylinder body 7 does not contact the inner wall of the steel pipe workpiece 4, the risk of carburizing between the slag prevention cylinder body 7 and the stainless steel material steel pipe workpiece 4 during cutting is effectively avoided.

[0020] With reference to Figure 1 、 2 , 3, the right side of the sealing plate 8 is fixedly installed with the air cylinder 12 penetrating into the slag prevention cylinder body 7 from the left end, the inside of the air cylinder 12 is slidably installed with the piston 13, the right side of the air cylinder 12 is insertedly installed with the push-pull rod 14, the outer wall of the push-pull rod 14 is provided with the limiting strips 15 on both sides, the right end of the air cylinder 12 is provided with the limiting slot matched with the push-pull rod 14 and the limiting strips 15, the left end of the air cylinder 12 is fixedly connected with the first air pipe 16 and the second air pipe 17 respectively, which are communicated with the two air bags 10, the right end of the air cylinder 12 is fixedly installed with the lock sleeve 18 above, the bottom of the lock sleeve 18 is slidably installed with the lock pin 19, the bottom of the lock sleeve 18 is provided with the sliding slot matched with the lock pin 19, the top of the lock pin 19 is fixedly connected with the sliding slot through the return spring, the top right side of the push-pull rod 14 is provided with the lock slot 20 matched with the lock pin 19, the top of the lock pin 19 is fixedly connected with the pull rod 21 inserted into the top of the lock pin 19.

[0021] Through the above design, after the slag prevention cylinder 7 is installed in the steel pipe workpiece 4 at the cutting position, the push-pull rod 14 is manually pushed inward, so that the push-pull rod 14 drives the piston 13 to move to the inside of the air cylinder 12. At this time, the air in the chamber on the left side of the piston 13 in the air cylinder 12 is discharged into the air bag 10 through the first air pipe 16 and the second air pipe 17, so that the air bag 10 is inflated and firmly adheres to the inner wall of the steel pipe workpiece 4 through the protective strip 11. When the push-pull rod 14 is pressed to the maximum limit, the locking pin 19 will meet the locking groove 20, and then be clamped into the locking groove 20 under the rebound of the return spring, to fix the push-pull rod 14, so as to maintain the inflation state of the air bag 10. Then, the cutting head 6 is started to cut the steel pipe workpiece 4. Since the slag prevention cylinder 7 resists and protects the inner wall of the steel pipe workpiece 4, most of the welding slag generated by the cutting head 6 is effectively blocked outside, so as to avoid the high-heat welding slag from falling into the inner wall of the steel pipe workpiece 4. After cutting, the pull rod 21 is pulled upward to pull out the locking pin 19 from the locking groove 20, and then the push-pull rod 14 is pulled to the right to return to the original position, so that the air bag 10 is contracted. Then, the slag prevention cylinder 7 is taken out through the handle 9, and finally the cutting position is simply cleaned, so that compared with the traditional cutting method without protection, the workload of polishing and cleaning the cutting slag is greatly reduced, which obviously plays a role in material preparation efficiency, product quality, energy saving and environmental protection.

[0022] The implementation principle of the embodiment of the application is:

[0023] First, when the steel pipe workpiece 4 needs to be cut by the cutting head 6, first place the steel pipe workpiece 4 on the pipe wheel 3, then start the chuck 5 to clamp and fix the left end of the steel pipe workpiece 4, after fixing, the operator holds the handle 9 and inserts the slag prevention cylinder body 7 into the cutting position from the right end of the steel pipe workpiece 4, after the slag prevention cylinder body 7 is installed in the steel pipe workpiece 4 at the cutting position, manually push the push-pull rod 14 inward, so that the push-pull rod 14 drives the piston 13 to move inside the air cylinder 12, at this time the air in the chamber on the left side of the piston 13 in the air cylinder 12 is discharged into the air bag 10 through the first air pipe 16 and the second air pipe 17, so that the air bag 10 expands, and is firmly attached to the inner wall of the steel pipe workpiece 4 through the protective strip 11, when the push-pull rod 14 is pressed to the maximum limit, the locking pin 19 will meet the locking groove 20, and will be clamped into the locking groove 20 under the rebound of the return spring, to fix the push-pull rod 14, so as to maintain the expansion state of the air bag 10, then start the cutting head 6 to cut the steel pipe workpiece 4, because the slag prevention cylinder body 7 resists and protects the inner wall of the steel pipe workpiece 4, at this time the welding slag generated by the cutting head 6 is mostly effectively blocked outside, thereby avoiding the high-heat welding slag from falling into the inner wall of the steel pipe workpiece 4, at the same time, the air bag 10 protruding on both sides of the outer wall of the slag prevention cylinder body 7 will abut against the inner wall of the steel pipe workpiece 4 through the protective strip 11 on its outer periphery, so that there is a certain non-contact gap between the body of the slag prevention cylinder body 7 and the inner wall of the steel pipe workpiece 4, thereby effectively preventing the slag prevention cylinder body 7 from contacting and rubbing against the inner wall of the steel pipe workpiece 4 during use, at the same time, because the slag prevention cylinder body 7 does not contact the inner wall of the steel pipe workpiece 4, the risk of carburization of the slag prevention cylinder body 7 and the stainless steel steel pipe workpiece 4 during cutting is effectively avoided, after cutting, pull the pull rod 21 upward to pull the locking pin 19 out of the locking groove 20, then pull the push-pull rod 14 to the right to return to the original position, so that the air bag 10 contracts, then take out the slag prevention cylinder body 7 through the handle 9, and finally simply clean the cutting position, thereby greatly reducing the work load of polishing and cleaning the cutting slag compared to the traditional unprotected cutting method, and playing an obvious role in material preparation efficiency, product quality, energy saving and environmental protection.

[0024] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A slag-preventing device inside a circular pipe intersection cutting machine, comprising a slag-preventing cylinder (7), characterized in that: The right side of the slag-proof cylinder (7) is connected by welding a sealing plate (8). A handle (9) is fixedly installed in the middle of the right side of the sealing plate (8). Airbags (10) are fixedly installed on both sides of the outer wall of the slag-proof cylinder (7). The outer wall of the airbag (10) is coated with a fireproof and high-temperature resistant coating. A protective strip (11) is provided around the outer periphery of the airbag (10). A gas cylinder (12) with its left end penetrating into the slag-proof cylinder (7) is fixedly installed on the right side of the sealing plate (8). A piston (13) is slidably installed inside the gas cylinder (12). A push-pull rod (14) is inserted into the right side of the gas cylinder (12). The left end of the gas cylinder (12) is fixedly connected to a first gas pipe (16) and a second gas pipe (17) that are connected to the two air bags (10). A locking sleeve (18) is fixedly installed above the right end of the gas cylinder (12). A locking pin (19) is slidably installed at the bottom of the locking sleeve (18). A locking groove (20) that matches the locking pin (19) is opened on the right side of the top of the push-pull rod (14). A pull rod (21) inserted into the top of the locking pin (19) is fixedly connected to the top of the locking pin (19).

2. The anti-slag device inside the pipe of a circular pipe intersection cutting machine as described in claim 1, characterized in that: The outer periphery of the slag-proof cylinder (7) is fitted with a steel pipe workpiece (4), and the bottom of the steel pipe workpiece (4) is rolled and fitted with a pipe wheel (3), and the bottom of the pipe wheel (3) is fixedly connected with a support rail (2).

3. The anti-slag device inside the pipe of a circular pipe intersection cutting machine as described in claim 2, characterized in that: A cross-line cutting machine (1) is provided on the left side of the support rail (2), and a chuck (5) is fixedly installed on the upper right side of the cross-line cutting machine (1) and clamped on the left end of the steel pipe workpiece (4). A cutting head (6) is provided above the steel pipe workpiece (4).

4. The anti-slag device inside the pipe of a circular pipe intersection cutting machine as described in claim 1, characterized in that: Limiting strips (15) are provided on both sides of the outer wall of the push-pull rod (14), and a limiting slot adapted to the push-pull rod (14) and the limiting strips (15) is provided on the right end of the air cylinder (12).

5. The anti-slag device inside the pipe of a circular pipe intersection cutting machine as described in claim 1, characterized in that: The bottom of the lock sleeve (18) is provided with a sliding groove that matches the locking pin (19), and the top of the locking pin (19) is fixedly connected to the sliding groove by a return spring.

Images